XMFDump1511164055798.txt

Call frame backtrace:

Current stack frame instructions:
  <Unknown instruction 109>
  LOCAL 0
  STARTCALL
  SENDSELF 0 'clientManager' <--- 
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Called(127): XMF::findClient at line 30 char 0
Self: XMF[fields=roleFiller,properties,homeDir,docDir,buildDate,version,user,preferences,exception,standardOutput,initFile,imageDir,startupArgs,banner,handles,nextHandle]
Supers: findClient,findClientByName,getAllClients,bootEnterprise,bootMosaic,saveImage,saveImage,saveImageAndInflater,bootMenus,bootConsole,bootUndo,bootPropertyEditor,bootBrowser,bootDiagrams,bootDialogs,dialogClient,getColor,getColor,getFont,message,warning,errorMessage,openFile,errorMessageWithText,multiSelectTreeDialog,order,order2,saveFile,busy,getString,getBoolean,getFloat,getInteger,getClassifier,getExp,textClient,browseUsing,browse,clipboard,chooseFont,suppressModelBrowserNodeExpansion,registry,menuRegistryHandler,fileEditorManager,toolManager,toolBrowser,enableToolDefinitionMenuUpgrader,disableToolDefinitionMenuUpgrader,projDir,demoDir,setProperty,property,properties,hasProperty,oldEdit,edit,getChildren,getChildrenSlots,orderSequence,removeDiagramListeners,getDiagramListeners,nodeEvent,getAvailableMappings,propertyTarget,slotMissing,synchronise,slotDenied,setProperty,setHotLoad,setDaemonsActive,setDaemons,set,renameSlot,removeStructuralFeature,removeDaemonsWithTarget,removeDaemonsWithId,removeDaemonNamed,removeDaemon,machineInit,initSlots,init,hotLoaded,hotLoad,hasSlot,hasProperty,getProperties,getProperty,get,hasStructuralFeature,getStructuralFeatureNames,hasDaemonWithTarget,hasDaemonWithIdAndTarget,hasDaemonWithId,hasDaemonNamed,fire,destroyDaemon,daemonWithIdAndTarget,daemonWithId,daemonNamed,daemonsActive,daemons,allDaemonsWithTarget,allDaemonsWithId,compositeValues,allCompositeValuesAndSelf,allCompositeValues,addStructuralFeature,addPersistentDaemon,addMultiDaemon,addDaemon,slots,addMissingSlot,slotMissing,applyMapping_client,changedOnDiagram,addDiagramListener,removeDiagramListener,getDiagramListenerNamed,orderSequence,calcChildrenSlots,getChildrenToolTips,observeBy,observeBy,observedBy,observedBy,ignoreBy,ignoreByAll,saveXTO,saveXTOFile,showDiagram,showAndLayoutDiagram,toSVG,graphVizNode,getChildren,showModelBrowserNode,invokeOp,edit_redirect,assignToGlobal,pasteFromClipboard,copyToClipboard,cutToClipboard,getDefaultClipboardSource,legalSlotChangeCheck,deployXML,selectDiagram,createDiagramType,createDiagram,doubleClick,slotAffectsLabel,labelString,pprint,pprint,pprint,pprintln,toType,writeXMLFile,writeXML,lift,toSnapshot,toSnapshot,allHTMLEntries,allHTMLPackages,toHTML,writeHTML,writeHTML,writeHTMLAllEntries,writeHTMLAllPackages,writeHTMLIndex,writeHTMLOverview,yield,toString,systemId,setRoleFillerDialog,setOf,send,save2,save,removeDaemon,removeDaemon,println,print,oclIsKindOf,oclIsTypeOf,setDelegation,noOperationFound,isTypeOf,isReallyKindOf,init,init,of,isKindOf,addTo,checkConstraints,copy,deleteRecursive,die,equals,error,ferror,hashCode,isWithinNameSpace,isProtected,isViewProtected,isDeleteProtected,nameString,doc,edit,createDiagramType,createDiagramType,showAndLayoutDiagram,legalSlotChangeCheck,legalNameChangeCheck,getDefaultClipboardTarget,cutToClipboard_transaction,copyToClipboard_transaction,assignToGlobal,browse_redirect,evaluateExpression,selectModelBrowserNode,browse,getChildrenToolTips,createTool,showDiagram,oldShowDiagram,populateGraphViz
Local(0): <Class DialogBoxClient>
Source Code:
    @Operation findClient(type : XCore::Element):XCore::Element
      self.clientManager().findClient(type)
    end
constant(0) = Array()
constant(1) = 'clientManager'
constant(2) = 'findClient'
----------------------------------------------------------------------------------------------------


----------------------------------------------------------------------------------------------------
Called(113): XMF::message at line 46 char 0
Self: XMF[fields=roleFiller,properties,homeDir,docDir,buildDate,version,user,preferences,exception,standardOutput,initFile,imageDir,startupArgs,banner,handles,nextHandle]
Supers: message,warning,errorMessage,openFile,errorMessageWithText,multiSelectTreeDialog,order,order2,saveFile,busy,getString,getBoolean,getFloat,getInteger,getClassifier,getExp,textClient,browseUsing,browse,clipboard,chooseFont,suppressModelBrowserNodeExpansion,registry,menuRegistryHandler,fileEditorManager,toolManager,toolBrowser,enableToolDefinitionMenuUpgrader,disableToolDefinitionMenuUpgrader,projDir,demoDir,setProperty,property,properties,hasProperty,oldEdit,edit,getChildren,getChildrenSlots,orderSequence,removeDiagramListeners,getDiagramListeners,nodeEvent,getAvailableMappings,propertyTarget,slotMissing,synchronise,slotDenied,setProperty,setHotLoad,setDaemonsActive,setDaemons,set,renameSlot,removeStructuralFeature,removeDaemonsWithTarget,removeDaemonsWithId,removeDaemonNamed,removeDaemon,machineInit,initSlots,init,hotLoaded,hotLoad,hasSlot,hasProperty,getProperties,getProperty,get,hasStructuralFeature,getStructuralFeatureNames,hasDaemonWithTarget,hasDaemonWithIdAndTarget,hasDaemonWithId,hasDaemonNamed,fire,destroyDaemon,daemonWithIdAndTarget,daemonWithId,daemonNamed,daemonsActive,daemons,allDaemonsWithTarget,allDaemonsWithId,compositeValues,allCompositeValuesAndSelf,allCompositeValues,addStructuralFeature,addPersistentDaemon,addMultiDaemon,addDaemon,slots,addMissingSlot,slotMissing,applyMapping_client,changedOnDiagram,addDiagramListener,removeDiagramListener,getDiagramListenerNamed,orderSequence,calcChildrenSlots,getChildrenToolTips,observeBy,observeBy,observedBy,observedBy,ignoreBy,ignoreByAll,saveXTO,saveXTOFile,showDiagram,showAndLayoutDiagram,toSVG,graphVizNode,getChildren,showModelBrowserNode,invokeOp,edit_redirect,assignToGlobal,pasteFromClipboard,copyToClipboard,cutToClipboard,getDefaultClipboardSource,legalSlotChangeCheck,deployXML,selectDiagram,createDiagramType,createDiagram,doubleClick,slotAffectsLabel,labelString,pprint,pprint,pprint,pprintln,toType,writeXMLFile,writeXML,lift,toSnapshot,toSnapshot,allHTMLEntries,allHTMLPackages,toHTML,writeHTML,writeHTML,writeHTMLAllEntries,writeHTMLAllPackages,writeHTMLIndex,writeHTMLOverview,yield,toString,systemId,setRoleFillerDialog,setOf,send,save2,save,removeDaemon,removeDaemon,println,print,oclIsKindOf,oclIsTypeOf,setDelegation,noOperationFound,isTypeOf,isReallyKindOf,init,init,of,isKindOf,addTo,checkConstraints,copy,deleteRecursive,die,equals,error,ferror,hashCode,isWithinNameSpace,isProtected,isViewProtected,isDeleteProtected,nameString,doc,edit,createDiagramType,createDiagramType,showAndLayoutDiagram,legalSlotChangeCheck,legalNameChangeCheck,getDefaultClipboardTarget,cutToClipboard_transaction,copyToClipboard_transaction,assignToGlobal,browse_redirect,evaluateExpression,selectModelBrowserNode,browse,getChildrenToolTips,createTool,showDiagram,oldShowDiagram,populateGraphViz
Local(0): <Exception Execution interrupted.>
Source Code:
    @Operation message(message : String):XCore::Element
      self.dialogClient().newMessageDialog(message)
    end
constant(0) = Array()
constant(1) = 'dialogClient'
constant(2) = 'newMessageDialog'
----------------------------------------------------------------------------------------------------


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Called(98): FileTextEditor::anonymous at line 101 char 0
Self: FileEditor[fields=file,listeners,commandInterpreter,owner,id,element,roleFiller,rightClickMenu,menuKey,name,tooltip,editable,dirty,lastModified]
Supers: anonymous,setSignature,setClean,focusGained,renew,isModified,getFileModifiedDate,close,ast,action,removeListener,removeDaemons,nameChangedEvent,nameChanged,focusLost,focusGained,fileRemoved,closeEvent,checkDaemons,addListener,undoStacked,showLine,show,setTooltip,setTooltip,setTextAt,setText,setSyntaxHighlightRules,setName,setFocus,setDirty,setCursorPosition,setClean,renew,removeDaemons,new,getTextAt,getText,getCursorPosition,focusLost,focusGained,dispose,closeOpenEditor,close,clearHighlights,addLineHighlight,addTerminates,addMultilineRule,addWordRule,dirty,editable,tooltip,name,hasCommandInterpreter,eventHandler,dispose,commandInterpreter,commandInterpreter,delete_client_check,delete_client,removeFromOwner,setOwner,addTo,allOwners,deleteRecursive,owner,getDefaultClipboardSource,delete_client_redirect,dispose,removeFromIdManager,disposeIdCollection,disposeCollection,disposeId,setId,id,globalMenu,elementTarget,buildGlobalMenu,setElement,element,element,setRightClickMenu,selfTarget,renewRightClickMenu,newRightClickMenu,globalMenu,globalMenu,globalMenu,clearRightClickMenu,clearRightClickMenu,buildMenuTreeFromRegistry,buildGlobalMenu,addRightClickMenuItems,addRightClickMenuItem,setMenuKey,menuKey,oldEdit,edit,getChildren,getChildrenSlots,orderSequence,removeDiagramListeners,getDiagramListeners,nodeEvent,getAvailableMappings,propertyTarget,slotMissing,synchronise,slotDenied,setProperty,setHotLoad,setDaemonsActive,setDaemons,set,renameSlot,removeStructuralFeature,removeDaemonsWithTarget,removeDaemonsWithId,removeDaemonNamed,removeDaemon,machineInit,initSlots,init,hotLoaded,hotLoad,hasSlot,hasProperty,getProperties,getProperty,get,hasStructuralFeature,getStructuralFeatureNames,hasDaemonWithTarget,hasDaemonWithIdAndTarget,hasDaemonWithId,hasDaemonNamed,fire,destroyDaemon,daemonWithIdAndTarget,daemonWithId,daemonNamed,daemonsActive,daemons,allDaemonsWithTarget,allDaemonsWithId,compositeValues,allCompositeValuesAndSelf,allCompositeValues,addStructuralFeature,addPersistentDaemon,addMultiDaemon,addDaemon,slots,addMissingSlot,slotMissing,applyMapping_client,changedOnDiagram,addDiagramListener,removeDiagramListener,getDiagramListenerNamed,orderSequence,calcChildrenSlots,getChildrenToolTips,observeBy,observeBy,observedBy,observedBy,ignoreBy,ignoreByAll,saveXTO,saveXTOFile,showDiagram,showAndLayoutDiagram,toSVG,graphVizNode,getChildren,showModelBrowserNode,invokeOp,edit_redirect,assignToGlobal,pasteFromClipboard,copyToClipboard,cutToClipboard,getDefaultClipboardSource,legalSlotChangeCheck,deployXML,selectDiagram,createDiagramType,createDiagram,doubleClick,slotAffectsLabel,labelString,pprint,pprint,pprint,pprintln,toType,writeXMLFile,writeXML,lift,toSnapshot,toSnapshot,allHTMLEntries,allHTMLPackages,toHTML,writeHTML,writeHTML,writeHTMLAllEntries,writeHTMLAllPackages,writeHTMLIndex,writeHTMLOverview,yield,toString,systemId,setRoleFillerDialog,setOf,send,save2,save,removeDaemon,removeDaemon,println,print,oclIsKindOf,oclIsTypeOf,setDelegation,noOperationFound,isTypeOf,isReallyKindOf,init,init,of,isKindOf,addTo,checkConstraints,copy,deleteRecursive,die,equals,error,ferror,hashCode,isWithinNameSpace,isProtected,isViewProtected,isDeleteProtected,nameString,doc,edit,createDiagramType,createDiagramType,showAndLayoutDiagram,legalSlotChangeCheck,legalNameChangeCheck,getDefaultClipboardTarget,cutToClipboard_transaction,copyToClipboard_transaction,assignToGlobal,browse_redirect,evaluateExpression,selectModelBrowserNode,browse,getChildrenToolTips,createTool,showDiagram,oldShowDiagram,populateGraphViz
Local(0): MachineException[fields=roleFiller,message,backtrace,resourceName,charCount,lineCount,data,id]
Local(1): MachineException[fields=roleFiller,message,backtrace,resourceName,charCount,lineCount,data,id]
Local(2): typeCaseValue
Source Code:
    @Operation anonymous(exception : XCore::Element):XCore::Element
      @TypeCase(exception)
        Parser::ParseError do
          self.commandInterpreter().syntaxError(self,exception.errorPos,exception.message);
          self.commandInterpreter().rendering(self,true)
        end
      end
    end
constant(0) = Array(typeCaseValue)
constant(1) = 'Parser'
constant(2) = 'ParseError'
constant(3) = 'errorPos'
constant(4) = 'message'
constant(5) = 'commandInterpreter'
constant(6) = 'syntaxError'
constant(7) = 'rendering'
constant(8) = 'xmf'
----------------------------------------------------------------------------------------------------


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Called(84): FileTextEditor::textChanged at line 75 char 0
Self: FileEditor[fields=file,listeners,commandInterpreter,owner,id,element,roleFiller,rightClickMenu,menuKey,name,tooltip,editable,dirty,lastModified]
Supers: textChanged,setSignature,setClean,focusGained,renew,isModified,getFileModifiedDate,close,ast,action,removeListener,removeDaemons,nameChangedEvent,nameChanged,focusLost,focusGained,fileRemoved,closeEvent,checkDaemons,addListener,undoStacked,showLine,show,setTooltip,setTooltip,setTextAt,setText,setSyntaxHighlightRules,setName,setFocus,setDirty,setCursorPosition,setClean,renew,removeDaemons,new,getTextAt,getText,getCursorPosition,focusLost,focusGained,dispose,closeOpenEditor,close,clearHighlights,addLineHighlight,addTerminates,addMultilineRule,addWordRule,dirty,editable,tooltip,name,hasCommandInterpreter,eventHandler,dispose,commandInterpreter,commandInterpreter,delete_client_check,delete_client,removeFromOwner,setOwner,addTo,allOwners,deleteRecursive,owner,getDefaultClipboardSource,delete_client_redirect,dispose,removeFromIdManager,disposeIdCollection,disposeCollection,disposeId,setId,id,globalMenu,elementTarget,buildGlobalMenu,setElement,element,element,setRightClickMenu,selfTarget,renewRightClickMenu,newRightClickMenu,globalMenu,globalMenu,globalMenu,clearRightClickMenu,clearRightClickMenu,buildMenuTreeFromRegistry,buildGlobalMenu,addRightClickMenuItems,addRightClickMenuItem,setMenuKey,menuKey,oldEdit,edit,getChildren,getChildrenSlots,orderSequence,removeDiagramListeners,getDiagramListeners,nodeEvent,getAvailableMappings,propertyTarget,slotMissing,synchronise,slotDenied,setProperty,setHotLoad,setDaemonsActive,setDaemons,set,renameSlot,removeStructuralFeature,removeDaemonsWithTarget,removeDaemonsWithId,removeDaemonNamed,removeDaemon,machineInit,initSlots,init,hotLoaded,hotLoad,hasSlot,hasProperty,getProperties,getProperty,get,hasStructuralFeature,getStructuralFeatureNames,hasDaemonWithTarget,hasDaemonWithIdAndTarget,hasDaemonWithId,hasDaemonNamed,fire,destroyDaemon,daemonWithIdAndTarget,daemonWithId,daemonNamed,daemonsActive,daemons,allDaemonsWithTarget,allDaemonsWithId,compositeValues,allCompositeValuesAndSelf,allCompositeValues,addStructuralFeature,addPersistentDaemon,addMultiDaemon,addDaemon,slots,addMissingSlot,slotMissing,applyMapping_client,changedOnDiagram,addDiagramListener,removeDiagramListener,getDiagramListenerNamed,orderSequence,calcChildrenSlots,getChildrenToolTips,observeBy,observeBy,observedBy,observedBy,ignoreBy,ignoreByAll,saveXTO,saveXTOFile,showDiagram,showAndLayoutDiagram,toSVG,graphVizNode,getChildren,showModelBrowserNode,invokeOp,edit_redirect,assignToGlobal,pasteFromClipboard,copyToClipboard,cutToClipboard,getDefaultClipboardSource,legalSlotChangeCheck,deployXML,selectDiagram,createDiagramType,createDiagram,doubleClick,slotAffectsLabel,labelString,pprint,pprint,pprint,pprintln,toType,writeXMLFile,writeXML,lift,toSnapshot,toSnapshot,allHTMLEntries,allHTMLPackages,toHTML,writeHTML,writeHTML,writeHTMLAllEntries,writeHTMLAllPackages,writeHTMLIndex,writeHTMLOverview,yield,toString,systemId,setRoleFillerDialog,setOf,send,save2,save,removeDaemon,removeDaemon,println,print,oclIsKindOf,oclIsTypeOf,setDelegation,noOperationFound,isTypeOf,isReallyKindOf,init,init,of,isKindOf,addTo,checkConstraints,copy,deleteRecursive,die,equals,error,ferror,hashCode,isWithinNameSpace,isProtected,isViewProtected,isDeleteProtected,nameString,doc,edit,createDiagramType,createDiagramType,showAndLayoutDiagram,legalSlotChangeCheck,legalNameChangeCheck,getDefaultClipboardTarget,cutToClipboard_transaction,copyToClipboard_transaction,assignToGlobal,browse_redirect,evaluateExpression,selectModelBrowserNode,browse,getChildrenToolTips,createTool,showDiagram,oldShowDiagram,populateGraphViz
Local(0): parserImport XOCL;
parserImport XMap; 

import Clients;
import Diagrams;
import DiagramsMapping;
import ClassDiagrams;
import ClassMapping;
import Menus;
import IO;

context ClassMapping

  @Class PackageXClassDiagram extends ElementXDiagram
  
    @Attribute package          : Package                         (?)   end
    @Attribute diagram          : ClassDiagram                    (?)   end
    @Attribute classMaps        : Seq(ClassXNode)                 (+,-) end
    @Attribute packageMaps      : Seq(PackageXNode)               (+,-) end
    @Attribute docMaps          : Seq(DocXNote)                   (+,-) end
    @Attribute elementMaps      : Seq(ElementXNode)               (+,-) end
    @Attribute inheritanceMaps  : Seq(ClassifierXInheritanceEdge) (+,-) end
    @Attribute delegationMaps   : Seq(DelegationXDelegationEdge)  (+,-) end
    @Attribute attributeMaps    : Seq(AttributeXAttributeEdge)    (+,-) end
    @Attribute containerMaps    : Seq(ContainerXContainsEdge)     (+,-) end
    @Attribute dependencyMaps   : Seq(DependencyXDependencyEdge)  (+,-) end
    @Attribute associationMaps  : Seq(AssociationXAssociationEdge)(+,-) end
    @Attribute associationInstanceMaps  : Seq(AssociationInstanceXAssociationInstanceEdge)(+,-) end
    @Attribute intrinsicAssociationConstraintMaps  : Seq(IntrinsicAssociationConstraintXIntrinsicAssociationConstraintEdge)(+,-) end
    
    @Constructor(package,diagram,owner)
      self.init(Seq{package,diagram})
    end
    
    @Constructor(package,diagram) !
    
      // This assumes that we are starting with a package
      // and generating the diagram.
      
      diagram.setOwner(self);
      self.setHotLoad(true);
      self.registerWithDiagram(diagram);
      self.checkDaemons();
      self.setGlobalMenu(diagram,Set{Package,diagram.of()})
    end

    //@Constructor(package,diagram,classMaps) end
    
    @Operation abstractClassMaps()
      classMaps + packageMaps
    end
    
    @Operation actionAdded(handler)
      // Add the action to the appropriate group in the palette...
      let name = handler.getProperty("actionName",handler.name.toString());
          icon = handler.getProperty("actionIcon","Tools/Activity.gif");
          group = handler.getProperty("actionGroup","Actions")
      in diagram.defineToolGroup(group);
         diagram.defineActionHandler(group,name,name,icon,handler)
      end
    end
    
    @Operation actionRemoved(handler)
      "PackageXClassDiagram::actionRemoved not implemented".println()
    end
    
    @Operation add(element)
      @TypeCase(element)
        AssociationXAssociationEdge do
          self.addAssociationMap(element)
        end
        IntrinsicAssociationConstraintXIntrinsicAssociationConstraintEdge do
          self.addIntrinsicAssociationConstraintMap(element)
        end        
        AssociationInstanceXAssociationInstanceEdge do
          self.addAssociationInstanceMap(element)
        end
        AttributeXAttributeEdge do
          self.addAttributeMap(element)
        end
        ClassifierXInheritanceEdge do
          self.addInheritanceMap(element)
        end
        DelegationXDelegationEdge do
          self.addDelegationMap(element)
        end
        DependencyXDependencyEdge do
          self.addDependencyMap(element)
        end
        ClassXNode do 
          self.addClassMap(element)
        end
        ContainerXContainsEdge do
          self.addContainerMap(element) 
        end
        ElementXNode do 
          self.addElementMap(element)
        end
        Associations::Association do
          self.associationAdded(element)
        end
        XCore::Package do
          self.packageAdded(element)
        end
        XCore::Class do
          self.classAdded(element)
        end
        PackageXNode do
          self.addPackageMap(element)
        end
        DocXNote do
          self.addDocMap(element)
        end
        else
          self.elementAdded(element)
        //else format(stdout,"PackageXClassDiagram::add: unknown element " + element.toString())
      end
    end
    
    @Operation addCreationButton(class)
    
      // Add a palette creation button for the class. Take appropriate action
      // depending on the type of the class. In addition, if the class is a meta-class
      // then add an extension point for displaying instances of the class...
      
      let className = class.name.toString();
          groupNames = diagram.getGroupNames() then
          groupName = xmf.select("Select Group","Select a group for the button",groupNames,"",@Operation(x) x end);
          metaHandler(x,y) = self.newClassNode(x,y,class.pathSeq());
          classHandler = self.instantiateClassHandler(class,package,self);
          attHandler(sourcePort,targetPort) = self.newAttributeEdge(sourcePort,targetPort,class.pathSeq())
      in if not(groupName = "" or groupName = null) 
         then 
           if class.inheritsFrom(XCore::Attribute)
           then 
             diagram.defineNewHandler(groupName,className,true,"XCore/Attribute.gif",attHandler);
             // Perhaps this should be done via another menu item...
             self.defineAttributeRegistryContributions(class)
           elseif class.isMetaClass()
           then 
             diagram.defineNewHandler(groupName,className,false,"XCore/Class.gif",metaHandler);
             // Perhaps this should be done via another menu item...
             self.defineMetaClassRegistryContributions(class)
           else diagram.defineNewHandler(groupName,className,false,"XCore/Object.gif",classHandler)
           end
         end
      end
    end

    @Operation addDropped(element)
      @TypeCase(element)
        XCore::Package do
          self.packageDropped(element);
          self.generateEdges()
        end
        XCore::Class do
          self.classDropped(element);
          self.generateEdges()
        end
        else format(stdout,"PackageXClassDiagram::addDropped: unknown element " + element.toString())
      end
    end
    
    @Operation addAssociationMap(associationMap)
      self.addToAssociationMaps(associationMap);
      associationMap.setOwner(self)
    end
    
   @Operation addIntrinsicAssociationConstraintMap(intrinsicAssociationConstraintMap)
      self.addToIntrinsicAssociationConstraintMaps(intrinsicAssociationConstraintMap);
      intrinsicAssociationConstraintMap.setOwner(self)
    end

    @Operation addAssociationInstanceMap(associationInstanceMap)
      self.addToAssociationInstanceMaps(associationInstanceMap);
      associationInstanceMap.setOwner(self)
    end
            
    @Operation addAttributeMap(attributeMap)
      self.attributeMaps := attributeMaps->prepend(attributeMap);
      attributeMap.setOwner(self)
    end
    
    @Operation addAttribute(attribute)
//     let acMaps = self.abstractClassMaps()
//      in
//        @Find(sourceMap,acMaps)
//          when sourceMap.element() = attribute.owner
//          do @Find(targetMap,acMaps)
//               when targetMap.element() = attribute.underlyingType()
//               do let 
//                    edge = diagram.makeAttribute(sourceMap.node,targetMap.node,attribute.of().pathSeq());
//                    //type = attribute.type then
//                    //mult = if type.isKindOf(Set) then "*" elseif type.isKindOf(Seq) then "* <<ordered>>" else "" end
//                    mult = AttributeXAttributeEdge::calcMultLabelString(attribute.mult())
//                  in  
//                    edge.setName(attribute.name.toString());
//                    edge.setMult(mult);
//                    let attributeEdgeMap = AttributeXAttributeEdge(attribute,edge)
//                    in  
//                      self.add(attributeEdgeMap);
//                      self.diagram.add(edge)
//                    end
//                  end
//             end
//        end
//      end
      null
    end
    
    @Operation addClass(class)
      let package = 
            if package.classes->includes(class) 
            then "" 
            else "(from " + class.owner.path() + ")"
            end;
          x = diagram.selectedX() + 100;
          y = diagram.selectedY() + 100 then
        node = ClassNode(class.name.toString(),package,class.isAbstract,class.of().pathSeq(),x,y,diagram.showAttributes(),diagram.showOperations(),diagram.showMetaslots()) then
        map = ClassXNode(class,node,self)
      in 
        @WithoutRendering(self.diagram)
          self.addClassMap(map);
          diagram.addNode(node);
          node.new(diagram);
          if class.isAbstract then
            node.setIsAbstract(true)
          end;
          if node.showAttributes then
            map.generateAttributes()
          end;
          if node.showOperations then
            map.generateOperations()
          end;
          if node.showMetaslots then
            map.generateMetaslots()
          end;
          if node.showOperationValues then
            map.generateOperationValues()
          end;
          node
        end
      end
    end
    
    @Operation addClassMap(classMap)
      self.classMaps := classMaps->prepend(classMap);
      classMap.setOwner(self)
    end
    
    @Operation addContainerMap(containerMap)
      self.addToContainerMaps(containerMap);
      containerMap.setOwner(self)
    end

    /* @Operation addContentsChangedDaemon()
      package.addContentDaemon(self,
        @Operation(newContents,oldContents)
          let
            added = newContents - oldContents;
            removed = oldContents - newContents
          in
            if not added->isEmpty then
              @For value in added do
                //if not value.isKindOf(Class) and not value.isKindOf(Package)
                //then self.elementAdded(value)
                if value.isKindOf(Associations::Association)
                then self.associationAdded(value)
                end
              end 
            else
            
            if not removed->isEmpty then
              @For value in removed do
                //if not value.isKindOf(Class) and not value.isKindOf(Package)
                //then self.elementRemoved(value)
                if value.isKindOf(Associations::Association)
                then self.associationRemoved(value)
                end
              end 
            end
          end
        end
      )
    end */

    @Operation addDependencyMap(dependencyMap)
      self.addToDependencyMaps(dependencyMap);
      dependencyMap.setOwner(self)
    end
    
    @Operation addDelegationMap(delegationMap)
      self.addToDelegationMaps(delegationMap);
      delegationMap.setOwner(self)
    end
    
    @Operation addDocMap(docMap)
      self.addToDocMaps(docMap);
      docMap.setOwner(self)
    end
    
    @Operation addElementMap(elementMap)
      self.addToElementMaps(elementMap);
      elementMap.setOwner(self)
    end
    
    @Operation addImportTrays()
      @For i in package.imports when i.isReallyKindOf(Package) and not Seq{XCore,Root}->includes(i) do
        // The imports of a package are available as buttons in the palette
        // to create objects on the diagram. This allows type and instance
        // to be mixed on a single diagram...
        self.addImportTray(i)
      end
    end
    
    @Operation addImportTray(package)
      let name = package.name.toString();
          map = self
      in diagram.defineToolGroup(name);
         @For class in package.classes when not(class.isAbstract) do
           let handler(x,y) = map.add(class())
           in diagram.defineNewHandler(name,class.name.toString(),false,"XCore/Object.gif",handler)
           end
         end
      end
    end
    
    @Operation addInheritanceMap(inheritanceMap)
      self.inheritanceMaps := inheritanceMaps->prepend(inheritanceMap);
      inheritanceMap.setOwner(self)
    end
    
    @Operation addMetaTray()
      if package.isMetaPackage()
      then 
        let parents = package.allParents() then
            contents = parents->iterate(p O=Set{} | O + p.contents()) then
            classes = contents->select(o | o <> null and o.isKindOf(Class)) then
            attributes = classes->select(c | c.inheritsFrom(Attribute));
            associations = classes->select(c | c.inheritsFrom(Associations::Association)) then
            classes = classes->including(Class)->excluding(Package)->excluding(Array)->excluding(Enum) then 
            metaclasses = classes->select(c | c.isMetaClass());
            thePackage = package
        in diagram.defineToolGroup("Meta Elements");
           @For a in attributes do
             diagram.defineNewHandler(
               "Meta Elements",
               a.name.toString() + "(subclass)",
               false,
               "XCore/Attribute.gif",
               @Operation(x,y) 
                 // Create a sub-class of a..
                 let class = Class(thePackage.newName(a.name.toString() + "Like"))
                 in class.addParent(a);
                    thePackage.add(class);
                    self.elementChanged()
                 end
               end)
           end;
           @For a in associations do
             diagram.defineNewHandler(
               "Meta Elements",
               a.name.toString() + "(subclass)",
               false,
               "XCore/Association.gif",
               @Operation(x,y) 
                 // Create a sub-class of a..
                 let class = Class(thePackage.newName(a.name.toString() + "Like"))
                 in class.addParent(a);
                    thePackage.add(class);
                    self.elementChanged()
                 end
               end)
           end;
           @For metaclass in metaclasses do
             diagram.defineNewHandler(
               "Meta Elements",
               metaclass.name.toString() + "(subclass)",
               false,
               "XCore/Class.gif",
               @Operation(x,y) 
                 // Create a new instance of the meta-class and make it inherit 
                 // from Class (actually this should be selectable). Should get
                 // the node and move it...
                 let class = metaclass(thePackage.newName(metaclass.name.toString()))
                 in class.addParent(Class);
                    thePackage.add(class);
                    self.elementChanged()
                 end
               end)
           end
        end
      else self.deleteMetaTray()
      end
    end
    
    @Operation addPackageMap(packageMap)
      self.addToPackageMaps(packageMap);
      packageMap.setOwner(self)
    end
    
    @Operation addPackage(package)
      let owningPackage = 
        if self.package.packages->includes(package) 
        then "" 
        else "(from " + package.owner.path() + ")"
        end then
        node = PackageNode(package.name.toString(),owningPackage,package.of().pathSeq(),0,0)
      in
        @WithoutRendering(self.diagram)
          self.add(PackageXNode(package,node,self));
          diagram.add(node);
          node.new(diagram)
        end
      end
    end
    
    @Operation associationInstanceAdded(associationInstance)
      if not associationInstanceMaps->exists(map | map.associationInstance = associationInstance)
      then
      	let acMaps = self.abstractClassMaps()
        in
          @Find(sourceMap,acMaps)
            when sourceMap.element() = associationInstance.class1
            do @Find(targetMap,acMaps)
              when targetMap.element() = associationInstance.class2
                do 
	                let name_label = Label("instance of " + associationInstance.class1.of().getAttribute(associationInstance.name1).association.name,"",0,-16,true, Color(120,120,120),0+1) then
						edge = AssociationInstanceEdge(name_label, sourceMap.node.ports().head(),targetMap.node.ports().head(),associationInstance.class1.of().getAttribute(associationInstance.name1).association.pathSeq())
			        in self.add(AssociationInstanceXAssociationInstanceEdge(associationInstance,edge));
        			   edge.new(self.diagram);
		        	   self.diagram.add(edge)
	        		end            
              end
          end
        end
      end
    end
    
    @Operation intrinsicAssociationConstraintAdded(intrinsicAssociationConstraint)
	  if not intrinsicAssociationConstraintMaps->exists(map | map.intrinsicAssociationConstraint = intrinsicAssociationConstraint)
      then
      	let acMaps = self.abstractClassMaps()
        in
          @Find(sourceMap,acMaps)
            when sourceMap.element() = intrinsicAssociationConstraint.constraint1.owner
            do @Find(targetMap,acMaps)
              when targetMap.element() = intrinsicAssociationConstraint.constraint2.owner
                do 
	                let name_label = Label(intrinsicAssociationConstraint.refersTo.name,"",0,-16,true, Color(120,120,120),0+1) then
						edge = IntrinsicAssociationConstraintEdge(name_label, sourceMap.node.ports().head(),targetMap.node.ports().head(),intrinsicAssociationConstraint.refersTo.pathSeq())
			        in self.add(IntrinsicAssociationConstraintXIntrinsicAssociationConstraintEdge(intrinsicAssociationConstraint,edge));
        			   edge.new(self.diagram);
		        	   self.diagram.add(edge)
	        		end            
              end
          end
        end
      end
     end
    
    @Operation associationAdded(association)
      if not associationMaps->exists(map | map.association = association)
      then
        let acMaps = self.abstractClassMaps()
        in
          @Find(sourceMap,acMaps)
            when sourceMap.element() = association.end1.underlyingType()
            do @Find(targetMap,acMaps)
              when targetMap.element() = association.end2.underlyingType()
                do let name = association.name.toString();
                  mult1 = Multiplicity(association.end1.mult.labelString(),"start");
                  mult2 = Multiplicity(association.end2.mult.labelString(),"end") then 
//                  instLevel1 = Label("Ø", "start", 40, 40, true, true, Color(0,0,0));
                  instLevel1 = Label("Ø", "start", 40, 40, true, Color(0,0,0));
//                  instLevel2 = Label("Ø", "start", -40, -40, true, true, Color(0,0,0));
                  instLevel2 = Label("Ø", "start", -40, -40, true, Color(0,0,0));
                  varName1 = Label(association.end1.name.toString(),"start",10,10,true);
                  varName2 = Label(association.end2.name.toString(),"end",-10,-10,true);
                  displayName1 = Label("displayName1","",0,-16,true, Color(0,0,0),0+1);
            	  displayName2 = Label("displayName2","",0, 16,true, Color(0,0,0),0-1) then
                  end1 = AssociationEnd(varName1,displayName1,mult1,instLevel1);
                  end2 = AssociationEnd(varName2,displayName2,mult2,instLevel2) then
                  edge = diagram.makeAssociation(name,end1,end2,sourceMap.node,targetMap.node,association.of().pathSeq())
                in self.add(AssociationXAssociationEdge(association,edge));
                  self.diagram.add(edge)
                end
              end
          end
        end
      end
    end
    
    @Operation attributeAdded(attribute)

      // Processes the addition of an attribute wrt the supplied
      // mappings. The accessors are used to map the maps to the
      // underlying model elements.

      if not attributeMaps->exists(map | map.attribute = attribute) and
         not attribute.isKindOf(Associations::End)
      then
        self.addAttribute(attribute)
      end
    end
    
    @Operation attributeDropped(attribute)
      self.addAttribute(attribute)
    end
    
    @Operation associationEdgeAdded(associationEdge)
      if self.validEdge(associationEdge)
      then
        if not associationMaps->exists(map | map.edge = associationEdge)
        then
          let acMaps = self.abstractClassMaps()
          in
            @Find(end1Map,acMaps)
              when end1Map.node = associationEdge.sourceNode()
              do @Find(end2Map,acMaps)
                   when end2Map.node = associationEdge.targetNode()
                   do let name = associationEdge.name; //package.newName("A");
                          class1 = end1Map.element();
                          class2 = end2Map.element() then
                          class1Name = class1.name.toString().lowerCaseInitialLetter();
                          class2Name = class2.name.toString().lowerCaseInitialLetter() then
                          end1Name = if class2.hasElement(class1Name) then class2.newName("a") else class1Name end;
                          end2Name = if class1.hasElement(class2Name) then class1.newName("b") else class2Name end;
                          metaClass = associationEdge.typePath->ref(Seq{Root,XCore,Associations}) then
                          association = metaClass(name);
                          end1 = Associations::End(end1Name,class1,Associations::One());
                          end2 = Associations::End(end2Name,class2,Associations::One())
                      in  //associationEdge.setName(name);
                          associationEdge.end1.setName(end1Name);
                          associationEdge.end2.setName(end2Name);
                          association.setEnd1(end1);
                          association.setEnd2(end2);
                          self.add(AssociationXAssociationEdge(association,associationEdge));
                          package.add(association);
                          self.elementChanged();
                          association.init()
                      end
                 end
            end       
          end
        end
      end
    end
    
    @Operation attributeEdgeAdded(attributeEdge)
      if self.validEdge(attributeEdge)
      then
        if not attributeMaps->exists(map | map.edge = attributeEdge)
        then
          let acMaps = self.abstractClassMaps()
          in
            @Find(ownerMap,acMaps)
              when ownerMap.node = attributeEdge.sourceNode()
              do @Find(typeMap,acMaps)
                   when typeMap.node = attributeEdge.targetNode()
                   do let class = ownerMap.element();
                        type = typeMap.element() then
                        typeName = type.name.toString().lowerCaseInitialLetter() then
                        name = if class.hasElement(typeName) then class.newName("att") else typeName end; 
                        metaClass = attributeEdge.typePath->ref(Seq{Root,XCore}) then
                        attribute = metaClass(name,type) then
                        attributeEdgeMap = AttributeXAttributeEdge(attribute,attributeEdge)
                    in  attributeEdge.setName(name);
                        self.add(attributeEdgeMap);
                        class.add(attribute);
                        self.elementChanged()
                    end
                 end
            end
          end
        end
      end
    end
    
    @Operation associationEdgeRemoved(associationEdge)
      @Find(associationMap,associationMaps)
        when associationMap.edge = associationEdge
        do self.remove(associationMap);
           let association = associationMap.association
           in  association.remove();
               association.owner.remove(association)
           end
      end
    end

    @Operation associationInstanceEdgeAdded(associationInstanceEdge)
      if self.validEdge(associationInstanceEdge)
      then
        if not associationInstanceMaps->exists(map | map.edge = associationInstanceEdge)
        then
          let acMaps = self.abstractClassMaps()
          in
            @Find(class1Map,acMaps)
              when class1Map.node = associationInstanceEdge.sourceNode()
              do @Find(class2Map,acMaps)
                   when class2Map.node = associationInstanceEdge.targetNode()
                   do let name = associationInstanceEdge.name.text; //package.newName("A");
                          class1 = class1Map.class;
                          class2 = class2Map.class then
                          metaClass = associationInstanceEdge.typePath->ref(Seq{Root,package}) then
						  associationInstance = Associations::AssociationInstance(package.newName(metaClass.name+"Instance"))
                      in  associationInstance.setSlot1(class1,metaClass.end2.name);
                          associationInstance.setSlot2(class2,metaClass.end1.name);
                          associationInstance.checkDaemons();
                          self.add(AssociationInstanceXAssociationInstanceEdge(associationInstance,associationInstanceEdge));
                          package.add(associationInstance);
                          self.elementChanged();
                          associationInstance.init()
                      end
                 end
            end       
          end
        end
      end
    end
    
    @Operation associationInstanceEdgeRemoved(associationInstanceEdge)
      @Find(associationInstanceMap,associationInstanceMaps)
        when associationInstanceMap.edge = associationInstanceEdge
        do self.remove(associationInstanceMap);
           let associationInstance = associationInstanceMap.associationInstance
           in  associationInstance.remove();
               associationInstance.owner.remove(associationInstance)
           end
      end
    end

	 @Operation intrinsicAssociationConstraintEdgeAdded(intrinsicAssociationConstraintEdge)
      if self.validEdge(intrinsicAssociationConstraintEdge)
      then
        if not intrinsicAssociationConstraintMaps->exists(map | map.edge = intrinsicAssociationConstraintEdge)
        then
          let acMaps = self.abstractClassMaps()
          in
            @Find(class1Map,acMaps)
              when class1Map.node = intrinsicAssociationConstraintEdge.sourceNode()
              do @Find(class2Map,acMaps)
                   when class2Map.node = intrinsicAssociationConstraintEdge.targetNode()
                   do let name = intrinsicAssociationConstraintEdge.name.text; //package.newName("A");
                          class1 = class1Map.class;
                          class2 = class2Map.class then
                          metaClass = intrinsicAssociationConstraintEdge.typePath->ref(Seq{Root,package}) then
						  intrinsicAssociationConstraint = Associations::IntrinsicAssociationConstraint(package.newName(metaClass.name+"Constraint"))
                      in  intrinsicAssociationConstraint.setConstraint1(class1.newIntrinsicAssociationConstraint(metaClass.end1,class2));
                          intrinsicAssociationConstraint.setConstraint2(class2.newIntrinsicAssociationConstraint(metaClass.end2,class1));
                          intrinsicAssociationConstraint.setRefersTo(metaClass);
                          intrinsicAssociationConstraint.checkDaemons();
                          self.add(IntrinsicAssociationConstraintXIntrinsicAssociationConstraintEdge(intrinsicAssociationConstraint,intrinsicAssociationConstraintEdge));
                          package.add(intrinsicAssociationConstraint);
                          intrinsicAssociationConstraint.init()
                      end
                 end
            end       
          end
        end
      end
    end
    
    @Operation intrinsicAssociationConstraintEdgeRemoved(intrinsicAssociationConstraintEdge)
      @Find(intrinsicAssociationConstraintMap,intrinsicAssociationConstraintMaps)
        when intrinsicAssociationConstraintMap.edge = intrinsicAssociationConstraintEdge
        do self.remove(intrinsicAssociationConstraintMap);
           let intrinsicAssociationConstraint = intrinsicAssociationConstraintMap.intrinsicAssociationConstraint
           in  intrinsicAssociationConstraint.remove();
               intrinsicAssociationConstraint.owner.remove(intrinsicAssociationConstraint)
           end
      end 
      			
    end

    @Operation associationRemoved(association)
      @Find(associationMap,associationMaps)
        when associationMap.association = association
        do 
          self.remove(associationMap);
          associationMap.edge.delete()
      end
    end

    @Operation associationInstanceRemoved(associationInstance)
      @Find(associationInstanceMap,associationInstanceMaps)
        when associationInstanceMap.associationInstance = associationInstance
        do 
          self.remove(associationInstanceMap);
          associationInstanceMap.edge.delete()
      end
    end

    @Operation intrinsicAssociationConstraintRemoved(intrinsicAssociationConstraint)
      @Find(intrinsicAssociationConstraintMap,intrinsicAssociationConstraintMaps)
        when intrinsicAssociationConstraintMap.intrinsicAssociationConstraint = intrinsicAssociationConstraint
        do 
          self.remove(intrinsicAssociationConstraintMap);
          intrinsicAssociationConstraintMap.edge.delete()
      end
    end
    
    @Operation delegationSourceChanged(delegationMap,newSourceNode,oldSourceNode)
      @Find(oldClassMap,self.classMaps)
        when oldClassMap.node = oldSourceNode do 
          @Find(newClassMap,self.classMaps)
            when newClassMap.node = newSourceNode do    
              let oldClass = oldClassMap.class;
                  newClass = newClassMap.class
              in
                @WithoutDaemons(newClass)
                  newClass.delegatesTo := oldClass.delegatesTo
                end;
                @WithoutDaemons(oldClass)
                  oldClass.delegatesTo := null
                end
              end
          end  
      end  
      end   
       
    @Operation delegationTargetChanged(delegationMap,newTargetNode,sourceNode)
      @Find(sourceClassMap,self.classMaps)
        when sourceClassMap.node = sourceNode do 
          @Find(newClassMap,self.classMaps)
            when newClassMap.node = newTargetNode do    
              let sourceClass = sourceClassMap.class;
                  newClass = newClassMap.class
              in
                @WithoutDaemons(sourceClass)
                  sourceClass.delegatesTo := newClass
                end
              end
          end  
      end 
    end

    @Operation associationEnd1Changed(associationMap,newEnd1Node)
      @Find(classMap,self.abstractClassMaps())
        when classMap.node = newEnd1Node
        do let association = associationMap.association then
               end1 = association.end1
           in end1.remove();
              end1.type := classMap.element();
              end1.init();
              self.elementChanged()
        end
      end
    end
    
    @Operation associationEnd2Changed(associationMap,newEnd2Node)
      @Find(classMap,self.abstractClassMaps())
        when classMap.node = newEnd2Node
        do let association = associationMap.association then
               end2 = association.end2
           in end2.remove();
              end2.type := classMap.element();
              end2.init();
              self.elementChanged()
           end
      end
    end
    
    @Operation associationEdgeAddedDaemon(diagram,slot,associationEdge)
      self.associationEdgeAdded(associationEdge)
    end
    
    @Operation associationEdgeRemovedDaemon(diagram,slot,associationEdge)
      self.associationEdgeRemoved(associationEdge)
    end

    @Operation associationInstanceEdgeAddedDaemon(diagram,slot,associationInstanceEdge)
      self.associationInstanceEdgeAdded(associationInstanceEdge)
    end
    
    @Operation associationInstanceEdgeRemovedDaemon(diagram,slot,associationInstanceEdge)
      self.associationInstanceEdgeRemoved(associationInstanceEdge)
    end
    
    @Operation intrinsicAssociationConstraintEdgeAddedDaemon(diagram,slot,intrinsicAssociationConstraint)
      self.intrinsicAssociationConstraintEdgeAdded(intrinsicAssociationConstraint)
    end
    
    @Operation intrinsicAssociationConstraintEdgeRemovedDaemon(diagram,slot,intrinsicAssociationConstraint)
      self.intrinsicAssociationConstraintEdgeRemoved(intrinsicAssociationConstraint)
    end
            
    @Operation attributeEdgeAddedDaemon(diagram,slot,attributeEdge)
      self.attributeEdgeAdded(attributeEdge)
    end
    
    @Operation attributeEdgeRemovedDaemon(diagram,slot,attributeEdge)
      self.attributeEdgeRemoved(attributeEdge)
    end
    
    @Operation attributeEdgeRemoved(attributeEdge)
      @Find(attributeMap,attributeMaps)
        when attributeMap.edge = attributeEdge
        do
          self.remove(attributeMap);
          let attribute = attributeMap.attribute
          in  attribute.owner.remove(attribute)
          end
      end
    end
    
    @Operation attributeOwnerChanged(attributeMap)
    
      // If the owner changes then remove the attribute map
      // and re-add the attribute only if the source of the
      // attribute edge is not the current owner.
      
      @Find(map,self.abstractClassMaps())
        when map.element() = attributeMap.attribute.owner and
             map.node = attributeMap.edge.source.owner
        else self.remove(attributeMap);
             attributeMap.edge.delete();
             self.attributeAdded(attributeMap.attribute)
      end
    end
    
    @Operation attributeRemoved(attribute)
      @Find(attributeMap,attributeMaps)
        when attributeMap.attribute = attribute
        do 
          self.remove(attributeMap);
          attributeMap.edge.delete()
      end
    end
    
    @Operation attributeSourceChanged(attributeMap,newNode)
      @Find(map,self.abstractClassMaps())
        when map.node = newNode
        do let attribute = attributeMap.attribute
           in attribute.owner.remove(attribute);
              map.element().add(attribute);
              self.elementChanged()
           end
        else
          attributeMap.edge.delete()
      end
    end
    
    @Operation attributeTargetChanged(attributeMap,newClassNode)
      @Find(map,self.abstractClassMaps())
        when map.node = newClassNode
        do let attribute = attributeMap.attribute;
               mult = attributeMap.edge.mult();
               class = map.element()
           in attribute.type := class;
              attribute.updateTypeFromMult();
              self.elementChanged()
           end
        else
          attributeMap.edge.delete()
      end
    end
    
    @Operation attributeTypeChanged(attributeMap)
    
      // Remove the attribute map and re-enter the attribute
      // in the case where the edge does not have the type as
      // a target.
      
      let foundMap = 
        @Find(map,self.abstractClassMaps())
          when map.element() = attributeMap.attribute.underlyingType() and
               map.node = attributeMap.edge.target.owner
          else null
        end
      in
        if foundMap.isKindOf(Null)
        then
          self.remove(attributeMap);
          attributeMap.edge.delete();
          self.attributeAdded(attributeMap.attribute)
        end
      end
    end

    @Operation buildGlobalMenu(rightClickable)      
      let globalMenu = rightClickable.globalMenu(false)
      in
        self.buildGlobalMenuExtras(globalMenu);
        globalMenu.new();
        globalMenu
      end
    end

    @Operation buildGlobalMenuExtras(globalMenu)
      super(globalMenu);
      globalMenu.add(MenuAction("Add Missing Package Contents to Diagram",RightClickableProxy::proxyTarget,Seq{},PackageXClassDiagram::addMissingContents));
      //globalMenu.add(MenuAction("Inherit",RightClickableProxy::proxyTarget,Seq{},PackageXClassDiagram::inheritMenu));
      self
    end

    @Operation checkDaemons()
      // Check that the package and diagram have the
      // appropriate daemons.
      super();
      self.checkPackageDaemons();
      self.checkDiagramDaemons()
    end
    
    @Operation checkDiagramDaemons()
      @SlotValueChanged multi once + PackageXClassDiagram::noteNodeAdded(diagram,"noteNodes") 				  	    end;
      @SlotValueChanged multi once - PackageXClassDiagram::noteNodeRemoved(diagram,"noteNodes") 			        end;
      @SlotValueChanged multi once + PackageXClassDiagram::classNodeAddedDaemon(diagram,"classNodes")               end;
      // @SlotValueChanged multi once - PackageXClassDiagram::classNodeRemovedDaemon(diagram,"classNodes")          end;
      @SlotValueChanged multi once + PackageXClassDiagram::packageNodeAddedDaemon(diagram,"packageNodes")           end;
      // @SlotValueChanged multi once - PackageXClassDiagram::packageNodeRemovedDaemon(diagram,"packageNodes")      end;
      @SlotValueChanged multi once - PackageXClassDiagram::elementNodeRemovedDaemon(diagram,"elementNodes")         end;
      @SlotValueChanged multi once + PackageXClassDiagram::inheritanceEdgeAddedDaemon(diagram,"inheritanceEdges")   end;
      // @SlotValueChanged multi once - PackageXClassDiagram::inheritanceEdgeRemovedDaemon(diagram,"inheritanceEdges") end;
      @SlotValueChanged multi once + PackageXClassDiagram::containsEdgeAddedDaemon(diagram,"containsEdges")         end;
      @SlotValueChanged multi once - PackageXClassDiagram::containsEdgeRemovedDaemon(diagram,"containsEdges")       end;
      @SlotValueChanged multi once + PackageXClassDiagram::dependencyEdgeAddedDaemon(diagram,"dependencyEdges")     end;
      @SlotValueChanged multi once - PackageXClassDiagram::dependencyEdgeRemovedDaemon(diagram,"dependencyEdges")   end;
      @SlotValueChanged multi once + PackageXClassDiagram::delegationEdgeAddedDaemon(diagram,"delegationEdges")     end;
      @SlotValueChanged multi once - PackageXClassDiagram::delegationEdgeRemovedDaemon(diagram,"delegationEdges")   end;
      @SlotValueChanged multi once + PackageXClassDiagram::associationEdgeAddedDaemon(diagram,"associationEdges")   end;
      // @SlotValueChanged multi once - PackageXClassDiagram::associationEdgeRemovedDaemon(diagram,"associationEdges") end;
      @SlotValueChanged multi once + PackageXClassDiagram::attributeEdgeAddedDaemon(diagram,"attributeEdges")       end;
      @SlotValueChanged multi once - PackageXClassDiagram::attributeEdgeRemovedDaemon(diagram,"attributeEdges")     end;
      @SlotValueChanged multi once + PackageXClassDiagram::associationInstanceEdgeAddedDaemon(diagram,"associationInstanceEdges")   end;
      @SlotValueChanged multi once - PackageXClassDiagram::associationInstanceEdgeRemovedDaemon(diagram,"associationInstanceEdges") end;
      @SlotValueChanged multi once + PackageXClassDiagram::intrinsicAssociationConstraintEdgeAddedDaemon(diagram,"intrinsicAssociationConstraintEdges")   end;
      @SlotValueChanged multi once - PackageXClassDiagram::intrinsicAssociationConstraintEdgeRemovedDaemon(diagram,"intrinsicAssociationConstraintEdges") end

    end

    @Operation metaPackageChanged_classDiagramDaemon(package,slot,newPackage,oldPackage)
      self.refreshToolGroups()
    end

    @Operation nameChanged_classDiagramDaemon(package,slot,newName,oldName)
      diagram.refreshName()
    end
    
    @Operation associationAdded_classDiagramDaemon(package,slot,association)
      self.associationAdded(association)
    end
    
    @Operation associationRemoved_classDiagramDaemon(package,slot,association)
      self.associationRemoved(association)
    end

    @Operation associationInstanceAdded_classDiagramDaemon(package,slot,associationInstance)
      self.associationInstanceAdded(associationInstance)
    end
    
    @Operation associationInstanceRemoved_classDiagramDaemon(package,slot,associationInstance)
      self.associationInstanceRemoved(associationInstance)
    end

    @Operation intrinsicAssociationConstraintAdded_classDiagramDaemon(package,slot,intrinsicAssociationConstraint)
      self.intrinsicAssociationConstraintAdded(intrinsicAssociationConstraint)
    end
    
    @Operation intrinsicAssociationConstraintRemoved_classDiagramDaemon(package,slot,intrinsicAssociationConstraint)
      self.intrinsicAssociationConstraintRemoved(intrinsicAssociationConstraint)
    end
                                    
    @Operation classAdded_classDiagramDaemon(package,slot,class)
	  if not self.eventFiltered("class added")
      then self.classAdded(class);
           self.generateEdges()
      end
    end
    
    @Operation classRemoved_classDiagramDaemon(package,slot,class)
      self.classRemoved(class)
    end
    
    @Operation checkPackageDaemons()
      @SlotValueChanged multi once   PackageXClassDiagram::nameChanged_classDiagramDaemon(package,"name")                end;
      // @SlotValueChanged multi once   PackageXClassDiagram::ownerChanged_classDiagramDaemon(package,"owner")           end;
      @SlotValueChanged multi once + PackageXClassDiagram::associationAdded_classDiagramDaemon(package,"associations")   end;
      @SlotValueChanged multi once - PackageXClassDiagram::associationRemoved_classDiagramDaemon(package,"associations") end;
      @SlotValueChanged multi once + PackageXClassDiagram::classAdded_classDiagramDaemon(package,"classes")              end;
      @SlotValueChanged multi once - PackageXClassDiagram::classRemoved_classDiagramDaemon(package,"classes")            end;
      @SlotValueChanged multi once + PackageXClassDiagram::packageAdded_classDiagramDaemon(package,"packages")           end;
      @SlotValueChanged multi once - PackageXClassDiagram::packageRemoved_classDiagramDaemon(package,"packages")         end;
      @SlotValueChanged multi once + PackageXClassDiagram::parentAdded_classDiagramDaemon(package,"parents")             end;
      @SlotValueChanged multi once - PackageXClassDiagram::parentRemoved_classDiagramDaemon(package,"parents")           end;
      @SlotValueChanged multi once + PackageXClassDiagram::operationAdded_classDiagramDaemon(package,"operations")       end;
      @SlotValueChanged multi once - PackageXClassDiagram::operationRemoved_classDiagramDaemon(package,"operations")     end;
      @SlotValueChanged multi once + PackageXClassDiagram::importAdded_classDiagramDaemon(package,"imports")             end;
      @SlotValueChanged multi once - PackageXClassDiagram::importRemoved_classDiagramDaemon(package,"imports")           end;
      @SlotValueChanged multi once   PackageXClassDiagram::metaPackageChanged_classDiagramDaemon(package,"metaPackage")  end;

      @SlotValueChanged multi once + PackageXClassDiagram::associationInstanceAdded_classDiagramDaemon(package,"associationInstances")   end;
      @SlotValueChanged multi once - PackageXClassDiagram::associationInstanceRemoved_classDiagramDaemon(package,"associationInstances") end;
	  @SlotValueChanged multi once + PackageXClassDiagram::intrinsicAssociationConstraintAdded_classDiagramDaemon(package,"intrinsicAssociationConstraints")   end;
      @SlotValueChanged multi once - PackageXClassDiagram::intrinsicAssociationConstraintRemoved_classDiagramDaemon(package,"intrinsicAssociationConstraints") end
                  
      // self.addContentsChangedDaemon() // to monitor added and removed named elements not covered by above, and associations
    end
    
    @Operation classAdded(class)
      if not classMaps->exists(map | map.class = class) and
         not elementMaps->exists(map | map.element = class)
      then
        self.addClass(class)
      end
    end
    
    @Operation classDropped(class)
    
      // Since a dropped class can be dropped multiple times it is not
      // necessary to guard the addition of a newly dropped class
      
      self.addClass(class)
    end
    
   @Operation classNodeAdded(classNode)
   
      // Create a class based on the newly added node on the diagram.
      // The class node will have a default name therefore we must
      // generate a new name that does not conflict with a class
      // in the current package. The class node contains the metaclass
      // as a path.
      
      if not classMaps->exists(map | map.node = classNode)
      then
        let 
          name = self.newClassName();
          metaClass = classNode.typePath->ref(Seq{Root,XCore}) then
          class = metaClass[name=Symbol(name.toString())] then
          mapClass = (xmf.registry().getExtensionPoint("com.ceteva.diagrams.class.map").find(metaClass).values->head)() then
          map = mapClass(class,classNode,self)
        in 
          classNode.setName(name);
          self.add(map);
          self.package.add(class);
          self.elementChanged();
          if classNode.showOperations then
            map.generateOperations()
          end;
          if classNode.showMetaslots then
            map.generateMetaslots()
          end;
          if classNode.showOperationValues then
            map.generateOperationValues()
          end
        end
      end
    end
    
    @Operation classNodeAddedDaemon(diagram,slot,classNode)
      self.classNodeAdded(classNode)
    end
    
    /*@Operation classNodeRemovedDaemon(diagram,slot,classNode)
      self.classNodeRemoved(classNode)
    end*/
    
    @Operation classRemoved(class)
      @For map in classMaps
        when map.class = class
        do
          map.node.delete();
          self.remove(map)
      end;
      
      if class.isMetaClass() 
        andthen class.level > 0 
          then diagram.removeAnyHandler(class.name,true)
      end;
      
      // Elements (dropped using other) are stored in the classes
      // slot, check to see if it is an element rather than a class
      // that has been removed
      
      @For map in elementMaps
        when map.element = class
        do
          map.node.delete();
          self.remove(map)
      end
    end
    
    /*@Operation classNodeRemoved(classNode)
      
      // no longer used, node is now removed by removing the
      // model element first
      
      self
    end*/
    
    @Operation classInheritanceMaps():Set(ClassXInheritanceEdge)
      inheritanceMaps->select(m | m.isKindOf(ClassXInheritanceEdge))
    end
    
    @Operation commandInterpreter()
      if owner <> null
      then owner.commandInterpreter()
      else
        xmf.findClient(DiagramClient).commandInterpreter
      end
    end
    
    @Operation containerSourceChanged(containerMap,newContainerNode)
      @Find(map,self.nodeMaps())
        when map.node = newContainerNode
        do containerMap.setContainer(map.element())
      end
    end
    
    @Operation containerTargetChanged(containerMap,newContainedNode)
      @Find(map,self.nodeMaps())
        when map.node = newContainedNode
        do containerMap.setContained(map.element())
      end
    end
    
    @Operation containsEdgeAdded(containsEdge)
      if self.validEdge(containsEdge)
      then
        if not containerMaps->exists(map | map.edge = containsEdge)
        then
          @Find(containerMap,self.nodeMaps())
            when containerMap.node = containsEdge.sourceNode()
            do @Find(containedMap,self.nodeMaps())
                when containedMap.node = containsEdge.targetNode()
                do
                  let containsMap = ContainerXContainsEdge(containerMap.element(),containedMap.element(),containsEdge)
                  in
                    self.add(containsMap);
                    containsMap.selectSlot()
                  end
             end
          end
        end
      end
    end
    
    @Operation containsEdgeRemoved(containsEdge)
      @Find(containsMap,containerMaps)
        when containsMap.edge = containsEdge
        do self.remove(containsMap);
           containsMap.removeValue()
      end
    end
    
    @Operation containsEdgeAddedDaemon(diagram,slot,containsEdge)
      self.containsEdgeAdded(containsEdge)
    end
    
    @Operation containsEdgeRemovedDaemon(diagram,slot,containsEdge)
      self.containsEdgeRemoved(containsEdge)
    end
    
    @Operation deleteImportTray(package)
      diagram.deleteGroupNamed(package.name.toString())
    end

    @Operation handleDiagramCloseEvent(diagram)
      if package.owner = null
      then
        owner.remove(self)
      else
        super(diagram)
      end
    end

    @Operation handleDiagramRenewEvent(diagram)
      self.refreshToolGroups()
    end
    
    @Operation defineActions()
      // Any default actions that require access to the mapping.
      // Remember self will be the diagram in any handler.
      let map = self then
          delete() = 
            @WithoutRendering(self)
              @For m in map.inheritanceMaps when m.edge.selected do
                m.child.removeParent(m.parent)
              end; 
              @For m in map.attributeMaps when m.edge.selected do
                m.attribute.deleteRecursive()
              end; 
              @For m in map.associationMaps when m.edge.selected do
                m.association.deleteRecursive()
              end;
              @For m in map.classMaps when m.node.selected do
                m.class.deleteRecursive()
              end;
              @For m in map.packageMaps when m.node.selected do
               m.package.deleteRecursive()
              end
            end;
          manageParents() = map.package.setParents_client();
          manageImports() = map.package.setImports_client()
      in diagram.defineActionHandler("Actions","Delete Selected","delete","Tools/Delete.gif",delete);
         diagram.defineActionHandler("Actions","Manage Parents","parents","XCore/Generalization.gif",manageParents);
         diagram.defineActionHandler("Actions","Manage Imports","imports","XCore/Dependency.gif",manageImports);
         // User defined operations with the named properties below are transformed into actions.
         // The operation properties define the group, label and icon. These default as shown...
         @For handler in package.allOperations() when handler.getProperty("diagramAction",false) do
           self.actionAdded(handler)
         end
      end
    end
    
    @Operation defineAttributeRegistryContributions(attClass)
      self.ensureDisplayPackage();
      self.defineAttributeTextExtension(attClass);
      self.defineAttributeXTextExtension(attClass)
    end
    
    @Operation defineAttributeTextExtension(attClass)
      let registry      = xmf.registry();
          attTextId     = "com.ceteva.diagrams.attribute.text";
          displays      = Clients::Displays.getElement(package.name);
          attributeText = XCore::Class(attClass.name+"Text") then
          accessor()    = displays.getElement(attClass.name+"Text")
      in attributeText.addParent(AttributeText);
         displays.add(attributeText);
         registry.addContribution(attTextId,ExtensionPoints::Contribution(attClass,[accessor]))
      end
    end
    
    @Operation defineAttributeXTextExtension(attClass)
      let registry       = xmf.registry();
          attXTextId     = "com.ceteva.diagrams.attribute.text.map";
          displays       = Clients::Displays.getElement(package.name);
          attributeXText = XCore::Class(attClass.name+"XText") then
          accessor()     = displays.getElement(attClass.name+"XText")
      in attributeXText.addParent(AttributeXText);
         displays.add(attributeXText);
         registry.addContribution(attXTextId,ExtensionPoints::Contribution(attClass,[accessor]))
      end
    end
    
    @Operation defineMetaClassRegistryContributions(metaClass)
      // When a metaClass is added to the diagram, we add entries into the sub-package
      // called Displays. The user can then navigate to the elements in this package
      // and extend or redefine them...
      self.ensureDisplayPackage();
      self.defineClassNodeExtension(metaClass);
      self.defineClassXNodeExtension(metaClass)
    end
    
    @Operation defineClassNodeExtension(metaClass)
      // An extension point for class node displays. The extension is an operation defined
      // in the registry that receives (x,y) the type path and the diagram and adds an
      // instance of ClassNode to the diagram. By adding a sub-class of ClassNode to the
      // Displays package, the user can override the display elements...
      let registry    = xmf.registry();
          classNodeId = "com.ceteva.diagrams.class.node";
          displays    = Clients::Displays.getElement(package.name);
          classNode   = XCore::Class(metaClass.name+"Node") then
          createClassNode(x,y,typePath,diagram) = 
            @WithoutRendering(diagram)
              let class = displays.getElement(metaClass.name+"Node") then
                  node = class("A Class","",false,typePath,x,y,diagram.showAttributes(),diagram.showOperations(),true)
              in node.new(diagram,true);
                 diagram.addNode(node);
                 node
              end
            end
      in classNode.addParent(ClassNode);
         displays.add(classNode);
         registry.addContribution(classNodeId,ExtensionPoints::Contribution(metaClass,[createClassNode]))
      end
    end
    
    @Operation defineClassXNodeExtension(metaClass)
      // The registry contains a sub-class of ClassXNode that will be used to manage the
      // association between an instance of ClassNode and an instance of metaClass. By 
      // adding the sub-class of ClassXNode to Displays, the user can override the mapping...
      let registry   = xmf.registry();
          classMapId = "com.ceteva.diagrams.class.map";
          displays   = Clients::Displays.getElement(package.name);
          classXNode = XCore::Class(metaClass.name+"XNode") then
          accessor() = displays.getElement(metaClass.name+"XNode")
      in classXNode.addParent(ClassXNode);
         displays.add(classXNode);
         registry.addContribution(classMapId,ExtensionPoints::Contribution(metaClass,[accessor]))
      end
    end
    
    @Operation defineToggles()
      // Any default toggles that require access to the mapping...
      null
    end
    
    @Operation deleteMetaTray()
      diagram.deleteGroupNamed("Meta Elements")
    end

    @Operation dependencyEdgeAddedDaemon(diagram,slot,dependencyEdge)
      self.dependencyEdgeAdded(dependencyEdge)
    end
    
    @Operation delegationEdgeAddedDaemon(diagram,slot,delegationEdge)
      self.delegationEdgeAdded(delegationEdge)
    end
    
    @Operation dependencyEdgeAdded(dependencyEdge)
      if self.validEdge(dependencyEdge)
      then
        if not dependencyMaps->exists(map | map.edge = dependencyEdge)
        then
          @Find(sourceMap,self.nodeMaps())
            when sourceMap.node = dependencyEdge.sourceNode()
            do @Find(targetMap,self.nodeMaps())
                 when targetMap.node = dependencyEdge.targetNode()
                  do let source = sourceMap.element();
                         target = targetMap.element();
                         metaClass = dependencyEdge.typePath->ref(Seq{Root,XCore}) then
                         dependency = metaClass(source,target)
                     in  self.add(DependencyXDependencyEdge(dependency,dependencyEdge));
                         dependency.attach()
                     end
               end
          end
        end
      end
    end
    
    @Operation delegationEdgeAdded(delegationEdge)
      if self.validEdge(delegationEdge)
      then
        if not delegationMaps->exists(map | map.edge = delegationEdge)
        then
          @Find(sourceMap,self.nodeMaps())
            when sourceMap.node = delegationEdge.sourceNode()
            do @Find(targetMap,self.nodeMaps())
              when targetMap.node = delegationEdge.targetNode()
              do let source = sourceMap.element();
                target = targetMap.element()
              in self.add(DelegationXDelegationEdge(source,target,delegationEdge))
                //;delegation.attach()
                ;self.cleanUpDelegations(source,target)
              end
            end
          end
        end
      end
    end
    
    @Operation cleanUpDelegations(source,target)      
      @Find(delegationMap,delegationMaps)
        when delegationMap.roleClass = source and delegationMap.roleFillerClass <> target
        do self.remove(delegationMap);
          delegationMap.edge.delete();
          delegationMap.owner.remove(delegationMap)
      end
    end
    
    @Operation dependencyEdgeRemoved(dependencyEdge)
      @Find(dependencyMap,dependencyMaps)
        when dependencyMap.edge = dependencyEdge
        do self.remove(dependencyMap);
           dependencyMap.detach();
           dependencyMap.dispose()
      end
    end
    
    @Operation dependencyEdgeRemovedDaemon(diagram,slot,dependencyEdge)
      self.dependencyEdgeRemoved(dependencyEdge)
    end
      
    @Operation delegationEdgeRemovedDaemon(diagram,slot,delegationEdge)
      self.delegationEdgeRemoved(delegationEdge)
    end
    
    
    @Operation delegationEdgeRemoved(delegationEdge)
      @Find(delegationMap,delegationMaps)
        when delegationMap.edge = delegationEdge
        do self.remove(delegationMap);
           delegationMap.dispose()
      end
    end
    
            @Operation dependencySourceChanged(dependency)
      // We do nothing for this since we don't expect
      // a dependency to be directly modified. Update
      // this in line with other model element changes.
      self
    end
    
    @Operation dependencyEdgeSourceChanged(map,node)
      @Find(classMap,self.nodeMaps())
        when classMap.node = node
        do map.dependency.detach();
           map.dependency.setSource(classMap.element());
           map.dependency.attach() 
      end   
    end
    
    @Operation dependencyEdgeTargetChanged(map,node)
      @Find(classMap,self.nodeMaps())
        when classMap.node = node
        do map.dependency.detach();
           map.dependency.setTarget(classMap.element());
           map.dependency.attach() 
      end   
    end
    
    @Operation dependencyTargetChanged(dependency)
      // We do nothing for this since we don't expect
      // a dependency to be directly modified. Update
      // this in line with other model element changes.
      self
    end
    
    @Operation debug(debug)
      owner.debug(debug)
    end

    @Operation dropIfNecessary(element)
      if not self.nodeExistsFor(element)
      then
        self.addDropped(element)
      end
    end

    @Operation dropOtherNode(x,y,C)
    
      // Specifies the set of classes to offer via the menu for a
      // dropped node at position (x,y).
      
      let classes = C->asSeq->qsort(@Operation(c1,c2) c1.name < c2.name end) then
          names = classes.name->map("toString") then
          choice = xmf.select("General Element","Select a type for the new node.",names,null,null)
      in if choice <> null
         then 
           let class = classes->at(names->indexOf(choice)) then
               instance = try class() catch(exception) try class.new() catch(exception) null end end;
               message = "Do you want to add this element to the contents of package " + package.name() + "?. " + 
               "If you choose no, it will only be deletable if you add it to the contents slot of another object using the Slot Value button." then
               addToPackage =
                 if instance.isReallyKindOf(Contained)
                 then xmf.question(message)
                 else false
                 end
           in
              if instance <> null
              then 
                if instance.isKindOf(NamedElement)
                then instance.setName(package.newName(class.name.toString()))
                end;
                self.elementAdded(instance,x,y);
                if addToPackage
                then package.add(instance)
                end
              end
           end
         end
      end
    end

    @Operation duplicateInheritanceEdge(edge,childMap,parentMap)
      inheritanceMaps->exists(m | m.child = childMap.element() and m.parent = parentMap.element()
        and m.edge <> edge)
    end
    
    @Operation elementAdded(element)
      self.elementAdded(element,0,0)
    end

    @Operation elementAdded(element,x,y)
      if element <> null and element.isKindOf(Object)
      then self.objectAdded(element,x,y)
      else self.nonObjectAdded(element,x,y)
      end
    end
    
    @Operation elementChanged()
      super();
      "PackageXClassDiagrams::elementChanged".println()
    end
    
    @Operation ensureDisplayPackage()
    
      // The Displays package is used to contain definitions for the
      // display of elements. It is intended to contain defaults that
      // can be extended by the user...
      
      if not Clients::Displays.hasElement(package.name)
      then Clients::Displays.add(Package(package.name))
      end
    end
    
    @Operation objectAdded(element,x,y)
      
      // An object displays its simply-typed slot-values...
          
      let node = ObjectNode(element.of(),x,y) then
          map = ObjectXNode(element,node,self) 
      in @WithoutRendering(self.diagram)
           self.add(map);
           diagram.add(node);
           node.new(diagram);
           map.createSlotText();
           map.elementChanged()
         end
      end
    end
    
    @Operation nonObjectAdded(element,x,y)
      
      // A general element whose type is unknown to us is added to
      // the diagram. Use a generic representation for the element.
          
      let label = @TypeCase(element)
                    NamedElement do element.name().toString() end
                  else element.toString()
                  end then
          node = ElementNode(element.of().pathSeq(),label,x,y) then
          map = @TypeCase(element)
                   NamedElement do NamedElementXNode(element,node) end
                else ElementXNode(element,node) 
                end
      in @WithoutRendering(self.diagram)
           self.add(map);
           diagram.add(node);
           node.new(diagram)
         end
      end
    end

    @Operation elementNodeRemoved(elementNode)
      @Find(map,elementMaps)
        when map.node = elementNode
        do
          self.remove(map);
          self.package.remove(map.element);
          self.diagram.remove(map.node)
      end
    end

    @Operation elementNodeRemovedDaemon(diagram,slot,elementNode)
      self.elementNodeRemoved(elementNode)
    end

    @Operation elementRemoved(element)
      @Find(map,elementMaps)
        when map.element = element
        do self.remove(map);
           map.node.delete()
      end
    end

    @Operation generateDiagram()
      self.toolGroups();
      super();
      diagram.cardLayout(12,200,10,20)
    end
    
    @Operation generateNodes()
      if self.total()
      then
        @For class in package.classes do
          self.classAdded(class);
          @For attribute in class.attributes do
            let type = attribute.underlyingType()
            in if not type.isKindOf(DataType) andthen 
                  not package.classes->includes(type)
               then self.add(type)
               end
            end
          end;
          @For parent in class.parents do
            if not class.defaultParents()->includes(parent) andthen
               not package.classes->includes(parent)
             then self.add(parent)
           end
          end
        end;
        @For package in package.packages do
          self.packageAdded(package);
          @For parent in package.parents do
            if parent.isReallyKindOf(XCore::Package)
            then self.add(parent)
            end
          end
        end
      end
    end

    @Operation generateEdges()
      let classes = self.abstractClassMaps()->collect(map | map.element())
      in
        @For class in classes do
          @For parent in class.parents do
            self.parentAdded(class,parent)
          end;
          @For attribute in class.attributes do
            self.attributeAdded(attribute)
          end
        end
      end;
      @For association in package.contentsOf(Associations::Association)->excluding(null) do
        self.associationAdded(association)
      end;
	  @For associationInstance in package.contentsOf(Associations::AssociationInstance)->excluding(null) do
        self.associationInstanceAdded(associationInstance)
      end;
      @For intrinsicAssociationConstraint in package.contentsOf(Associations::IntrinsicAssociationConstraint)->excluding(null) do
        self.intrinsicAssociationConstraintAdded(intrinsicAssociationConstraint)
      end
    end

    @Operation hotLoaded()
      self.registerWithDiagram(diagram);
      xmf.diagramManager().addDiagram(package,diagram);
      self.checkDaemons();
      self.setGlobalMenu(diagram,Set{package.of(),diagram.of()},false)
    end

    @Operation importMenu()
    
      // Offer all the contents that this package imports.
      
      let importedContents = package.importedContents() then
          sortedImports = importedContents->asSeq.sortNamedElements_CaseIndependent()
      in
        let element = xmf.select("Import","Select a classifier",sortedImports,null,null)
        in
          if element <> null
          then
            self.addDropped(element)
          end
        end
      end

    end
    
    @Operation importAdded_classDiagramDaemon(obj,slot,package)
      if not self.eventFiltered("import added")
      then self.importAdded(package)
      end
    end
    
    @Operation importRemoved_classDiagramDaemon(obj,slot,package)
      self.importRemoved(package)
    end
    
    @Operation importAdded(package)
      self.addImportTray(package)
    end
    
    @Operation importRemoved(package)
      self.deleteImportTray(package)
    end
    
    @Operation inheritanceEdgeAddedDaemon(diagram,slot,inheritanceEdge)
      self.inheritanceEdgeAdded(inheritanceEdge)
    end
    
    @Operation inheritanceEdgeRemovedDaemon(diagram,slot,inheritanceEdge)
      self.inheritanceEdgeRemoved(inheritanceEdge)
    end
    
    @Operation instantiateClassHandler(c,p,m)
    
      // Create a handler for a new button where the element being instantiated is
      // not a meta-class. A few checks are used to see ifwe can meaningfully add
      // the new object to the package...
      
      @Operation(x,y) 
        let instance = try c() catch(exception) try c.new() catch(exception) null end end then
            message = "Do you want to add this element to the contents of package " + p.name() + "?" then
            addToPackage =
            if instance.isReallyKindOf(Contained)
            then xmf.question(message)
            else false
            end
        in if instance <> null
           then 
             if instance.isKindOf(NamedElement)
             then instance.setName(p.newName(c.name().toString()))
             end;
             m.elementAdded(instance,x,y);
             if addToPackage
             then p.add(instance)
             end;
             self.elementChanged()
           end
        end
      end
    end
    
    @Operation dropMenu()
    
      self
      // Drop any classifier into a class diagram by declaring its path.
      // *** to be implemented ***
      
    end

    @Operation inheritMenu()
    
      // Offer all the elements that the package inherits...
      
      let I = package.allContents() - package.contents() then
          I = I->excluding(null) then
          I = I->asSeq->qsort(@Operation(n1,n2) n1.name < n2.name end) then
          element = xmf.select("Inherit","Select a classifier",I,null,null)
      in if element <> null
         then self.add(element)
         end
      end
      
    end

    @Operation inheritanceEdgeAdded(inheritanceEdge)
      self.inheritanceEdgeAdded(inheritanceEdge,classMaps,ClassXInheritanceEdge);
      self.inheritanceEdgeAdded(inheritanceEdge,packageMaps,PackageXInheritanceEdge)
    end

    @Operation inheritanceEdgeAdded(inheritanceEdge,maps,mapClass)
      if self.validEdge(inheritanceEdge)
      then
        @Find(childMap,maps)
          when childMap.node = inheritanceEdge.sourceNode()
          do @Find(parentMap,maps)
               when parentMap.node = inheritanceEdge.targetNode()
               do
                 if self.duplicateInheritanceEdge(inheritanceEdge,childMap,parentMap)
                 then
                   inheritanceEdge.delete()
                 else
                   if not inheritanceMaps->exists(map | map.edge = inheritanceEdge)
                   then
                     let 
                       child = childMap.element();
                       parent = parentMap.element() then
                       inheritanceMap = mapClass(child,parent,inheritanceEdge)
      			     in 
      			       self.add(inheritanceMap);
        			   child.addParent(parent);
                       self.elementChanged()
      			     end
      			   end
                 end
             end
        end
      end
    end

    @Operation inheritanceEdgeRemoved(inheritanceEdge)
      @Find(inheritanceMap,inheritanceMaps)
        when inheritanceMap.edge = inheritanceEdge
        do self.remove(inheritanceMap);
           inheritanceMap.child.removeParent(inheritanceMap.parent)
      end
    end

    @Operation inheritanceSourceChanged(inheritanceMap,newNode)
      self.inheritanceSourceChanged(inheritanceMap,newNode,classMaps);
      self.inheritanceSourceChanged(inheritanceMap,newNode,packageMaps)
    end
    
    @Operation inheritanceSourceChanged(inheritanceMap,newNode,maps)
      @Find(map,maps)
        when map.node = newNode
        do let oldChild = inheritanceMap.child;
               newChild = map.element();
               parent = inheritanceMap.parent
           in  oldChild.removeParent(parent);
               if newChild.of() = parent.of()
               then
                 newChild.addParent(parent);
                 self.elementChanged()
               end
           end
        else
          inheritanceMap.edge.delete()
      end
    end

    @Operation inheritanceTargetChanged(inheritanceMap,newNode)
      self.inheritanceTargetChanged(inheritanceMap,newNode,classMaps);
      self.inheritanceTargetChanged(inheritanceMap,newNode,packageMaps)
    end
    
    @Operation inheritanceTargetChanged(inheritanceMap,newNode,maps)
      @Find(map,maps)
        when map.node = newNode
        do let child = inheritanceMap.child;
               oldParent = inheritanceMap.parent;
               newParent = map.element()
           in  child.removeParent(oldParent);
               if newParent.of() = child.of()
               then
                 child.addParent(newParent);
                 self.elementChanged()
               end
           end
        else
          inheritanceMap.edge.delete()
      end
    end

    @Operation newAttributeName(class):String
      let i = 0
      in @While class.allAttributes()->exists(a | a.name.toString() = ("att" + i.toString())) do
           i := i + 1
         end;
         "att" + i.toString()
      end
    end
    
    @Operation newClassName():String
      let i = 0
      in @While package.classes->exists(c | c.name.toString() = ("Class" + i.toString())) do
           i := i + 1
         end;
         "Class" + i.toString()
      end
    end
    
    @Operation newPackageName():String
      let i = 0
      in @While package.packages->exists(c | c.name.toString() = ("Package" + i.toString())) do
           i := i + 1
         end;
         "Package" + i.toString()
      end
    end

    @Operation nodeExistsFor(element)
      if self.nodeMaps()->exists(map | map.element() = element)
      then true
      else false
      end
    end

    @Operation nodeMaps()
      classMaps + packageMaps + elementMaps + self.docMaps
    end
    
    @Operation noteNodeAdded(element,slot,noteNode)
      if not self.docMaps->exists(map | map.node = noteNode)
      then
        let 
          doc = Doc(noteNode.text.text) then
          map = DocXNote(doc,noteNode,self)
        in
          self.add(map)
        end
      end
    end
    
    @Operation noteNodeRemoved(element,slot,noteNode)
      @Find(map,self.docMaps)
        when map.node = noteNode
        do
           self.remove(map)
      end
    end  
    
    @Operation operationAdded(operation)
      if operation.getProperty("diagramAction",false)
      then self.actionAdded(operation)
      end
    end
    
    @Operation operationRemoved(operation)
      if operation.getProperty("diagramAction",false)
      then self.actionRemoved(operation)
      end
    end 
    
    @Operation operationAdded_classDiagramDaemon(obj,slot,operation)
      if not self.eventFiltered("operation added")
      then self.operationAdded(operation)
      end
    end
    
    @Operation operationRemoved_classDiagramDaemon(obj,slot,operation)
      self.operationRemoved(operation)
    end
    
    @Operation packageAdded(package)
      if not packageMaps->exists(map | map.package = package) and
         not elementMaps->exists(map | map.element = package)
      then
        self.addPackage(package)
      end
    end
    
    @Operation packageDropped(package)
    
      // Since a dropped package can be dropped multiple times it is not
      // necessary to guard the addition of a newly dropped package
      
      self.addPackage(package)
    end
    
    @Operation packageInheritanceMaps():Set(ClassXInheritanceEdge)
      inheritanceMaps->select(m | m.isKindOf(PackageXInheritanceEdge))
    end
    
    @Operation packageNodeAdded(packageNode)
      if not packageMaps->exists(map | map.node = packageNode)
      then
        let 
          name = self.newPackageName() then
          metaClass = packageNode.typePath->ref(Seq{Root,XCore}) then
          package = metaClass(name) then
          map = PackageXNode(package,packageNode,self)
        in
          packageNode.setName(name);
          self.add(map);
          self.package.add(package);
          self.elementChanged()
        end
      end
    end
    
    @Operation packageNodeAddedDaemon(diagram,slot,packageNode)
      self.packageNodeAdded(packageNode)
    end
    
    @Operation packageNodeRemovedDaemon(diagram,slot,packageNode)
      self.packageNodeRemoved(packageNode)
    end
    
    @Operation packageRemoved(package)
      @For map in packageMaps
        when map.package = package
        do 
          self.remove(map);
          map.node.delete()
      end
    end
    
    @Operation packageNodeRemoved(packageNode)
      @Find(map,packageMaps)
        when map.node = packageNode
        do self.remove(map);
           package.remove(map.package);
           self.elementChanged()
      end
    end
    
    @Operation packageAdded_classDiagramDaemon(obj,slot,package)
      if not self.eventFiltered("package added")
      then self.packageAdded(package)
      end
    end
    
    @Operation packageRemoved_classDiagramDaemon(obj,slot,package)
      self.packageRemoved(package)
    end
    
    @Operation parentAdded(parent)
      // Called when a parent has been added to the package...
      self.addMetaTray()
    end
    
    @Operation parentRemoved(parent)
      // Called when a parent has been removed from the package...
      if not package.isMetaPackage()
      then self.deleteMetaTray()
      end
    end
    
    @Operation parentAdded_classDiagramDaemon(obj,slot,parent)
      if not self.eventFiltered("parent added")
      then self.parentAdded(parent)
      end
    end
    
    @Operation parentRemoved_classDiagramDaemon(obj,slot,parent)
      self.parentRemoved(parent)
    end
    
    @Operation parentAdded(child,parent)
      @TypeCase(child)
        XCore::Package do
          self.parentAdded(child,parent,packageMaps,PackageXInheritanceEdge)
        end
        XCore::Class do
          self.parentAdded(child,parent,classMaps,ClassXInheritanceEdge)
        end
      end
    end

    @Operation parentAdded(child,parent,maps,mapClass)
      if not inheritanceMaps->exists(map | map.child = child and map.parent = parent)
      then
        @Find(childMap,maps)
          when childMap.element() = child
          do @Find(parentMap,maps)
               when parentMap.element() = parent
               do
                 let 
                   edge = diagram.makeInheritance(childMap.node,parentMap.node) then
                   map = mapClass(child,parent,edge)
                 in
                   self.add(map);
                   self.diagram.add(edge)
      			 end
             end
        end
      end
    end

    @Operation parentRemoved(child,parent)
      @Find(inheritanceMap,inheritanceMaps)
        when inheritanceMap.child = child and inheritanceMap.parent = parent
        do 
          self.remove(inheritanceMap);
          inheritanceMap.edge.delete()
      end
    end

    @Operation refreshToolGroups()
      diagram.commandInterpreter().clearToolPaletteCommand(diagram);
      diagram.defineToolGroups();
      self.toolGroups()
    end

    @Operation remove(element)
      @TypeCase(element)
        AssociationXAssociationEdge do
          self.deleteFromAssociationMaps(element);
          element.removeDaemons()
        end 
        AssociationInstanceXAssociationInstanceEdge do
          self.deleteFromAssociationInstanceMaps(element);
          element.removeDaemons()
        end
        IntrinsicAssociationConstraintXIntrinsicAssociationConstraintEdge do
          self.deleteFromIntrinsicAssociationConstraintMaps(element);
          element.removeDaemons()
        end 
        ClassXNode do
          self.deleteFromClassMaps(element);
          element.removeDaemons()
        end
        ClassifierXInheritanceEdge do
          self.deleteFromInheritanceMaps(element);
          element.removeDaemons()
        end
        AttributeXAttributeEdge do
          self.deleteFromAttributeMaps(element);
          element.removeDaemons()
        end
        ContainerXContainsEdge do
          self.deleteFromContainerMaps(element);
          element.removeDaemons()
        end
        DependencyXDependencyEdge do
          self.deleteFromDependencyMaps(element);
          element.removeDaemons()
        end
        DelegationXDelegationEdge do
          self.deleteFromDelegationMaps(element);
          element.removeDaemons()
        end
        PackageXNode do
          self.deleteFromPackageMaps(element);
          element.removeDaemons()
        end
        ElementXNode do
          self.deleteFromElementMaps(element);
          element.removeDaemons()
        end
        DocXNote do
          self.deleteFromDocMaps(element);
          element.removeDaemons()
        end        
        else format(stdout,"PackageXClassDiagram::remove: unknown element " + element.toString())
      end
    end

    @Operation removeDaemonCollection(seq:Seq(Element))
      @For element in seq do
        element.removeDaemons()
      end
    end

    @Operation removeDaemons()
      super();
      diagram.removeDaemonsWithTarget(self,true);
      package.removeDaemonsWithTarget(self,true);
      self.removeDaemonCollection(self.classMaps);
      self.removeDaemonCollection(self.packageMaps);
      self.removeDaemonCollection(self.docMaps);
      self.removeDaemonCollection(self.elementMaps);
      self.removeDaemonCollection(self.inheritanceMaps);
      self.removeDaemonCollection(self.attributeMaps);
      self.removeDaemonCollection(self.containerMaps);
      self.removeDaemonCollection(self.dependencyMaps);
      self.removeDaemonCollection(self.associationMaps)
    end

    @Operation renew()
      // Called when the diagram is to be regenerated from existing components
      // such as after it is loaded from a file.
      diagram.renew();
      self.refreshToolGroups()
    end
    
    @Operation save()
    
      // Save the mapping independent of the model elements that it maps.
      // To save the model elements the mapping should be part of a project
      // which contains (references to) both the model element and the
      // mapping.
      
      let file = xmf.saveFile(xmf.projDir(),".dgm")
      in if file <> ""
         then
           xmf.clientManager().setSaving(true);
           let excludedNameSpaces = Root.allContentsOf(XCore::Package)->including(Root)->asSeq;
               out = ElementOutputChannel(GZipOutputChannel(FileOutputChannel(file)))
           in xmf.clientManager().preSave();
              out.write(self,excludedNameSpaces);
              out.close();
              xmf.clientManager().postSave();
              xmf.clientManager().setSaving(false)
           end
         end
      end
              
    end

    @Operation setElementAdded(object,slot,newValue)
      // Called when a monitored object's slot is updated where the type of the
      // slot is a collection. Currently do nothing, but it should mimic the behaviour
      // of SnapshotXSnapshotDiagram.
      object
    end
    
    @Operation setElementRemoved(object,slot,newValue)
      // Called when a monitored object's slot is updated where the type of the
      // slot is a collection. Currently do nothing, but it should mimic the behaviour
      // of SnapshotXSnapshotDiagram.
      object
    end
    
    @Operation slotValueChanged(object,slot,newValue)
      // Called when an object changes value. The simple
      // valued slots in objects handle themselves via
      // ObjectXNode. However this will get called when
      // an edge between objects changes.
      object
    end
    
    @Operation XCoreToolGroups()
      diagram.defineNewHandler("XCore","Attribute (String)",false,"XCore/DataType.gif",PackageXClassDiagram::defaultSimpleAttribute(self,String));
      diagram.defineNewHandler("XCore","Attribute (Integer)",false,"XCore/DataType.gif",PackageXClassDiagram::defaultSimpleAttribute(self,Integer));
      diagram.defineNewHandler("XCore","Attribute (Boolean)",false,"XCore/DataType.gif",PackageXClassDiagram::defaultSimpleAttribute(self,Boolean));
      diagram.defineNewHandler("XCore","Attribute (Float)",false,"XCore/DataType.gif",PackageXClassDiagram::defaultSimpleAttribute(self,Float))
    end
    
    @Operation defaultSimpleAttribute(map:PackageXClassDiagram,type:Classifier)
      @Operation(x,y)
        map.newSimpleAttribute(x,y,type)
      end
    end
    
    @Operation newSimpleAttribute(x,y,type:Classifier)
      @Find(map,classMaps) when map.node.contains(x,y) do
        map.class.add(Attribute(map.class.newName("att"),type))
      end
    end

    @Operation toolGroups()
    
      // Add tool groups for the sub-classes of the key elements
      // on a class diagram. Calculate all the sub-classes of
      // class diagram element classes defined by the meta-package
      // of the package controlled by the diagram. Each sub-class
      // corresponds to a stereotype that creates a standard class
      // diagram component tagged with the << and >> labels.
      
      let languageName = package.metaPackage().name.toString();
      
          // allContents returns a set; iterating over a large set is *very* expensive.
          // The following code has been changed to the equivalent loop with side effects.
          
          //allContents = package.metaPackage().allContents() then
          //classes = 
          //  allContents
          //    ->select(c | c.isKindOf(XCore::Class))
          //    ->excluding(null)
          //    ->reject(c | c.owner() = XCore or c.isAbstract) then
          //dependencyToolGroups = classes->select(c | c.inheritsFrom(XCore::Dependency));
          //classToolGroups = classes->select(c | c.inheritsFrom(XCore::Class) and not c.inheritsFrom(XCore::Package));
          //packageToolGroups = classes->select(c | c.inheritsFrom(XCore::Package));
          //attributeToolGroups = classes->select(c | c.inheritsFrom(XCore::Attribute)) then
          //otherToolGroups = classes - (dependencyToolGroups + classToolGroups + packageToolGroups + attributeToolGroups)
          
          dependencyToolGroups = Seq{};
          classToolGroups = Seq{};
          packageToolGroups = Seq{};
          attributeToolGroups = Seq{};
          otherToolGroups = Seq{}
      in 
         @For e inTableValues package.metaPackage().contents do
           if e.isReallyKindOf(XCore::Class) andthen (e.owner() <> XCore and not e.isAbstract)
           then 
             if e.inheritsFrom(XCore::Dependency)
             then dependencyToolGroups := Seq{e | dependencyToolGroups}
             elseif e.inheritsFrom(XCore::Class) and not e.inheritsFrom(XCore::Package)
             then classToolGroups := Seq{e | classToolGroups}
             elseif e.inheritsFrom(XCore::Package)
             then packageToolGroups := Seq{e | packageToolGroups}
             elseif e.inheritsFrom(XCore::Attribute)
             then attributeToolGroups := Seq{e | attributeToolGroups}
             else otherToolGroups := Seq{e | otherToolGroups}
             end
           end
         end;

         // If the package is a meta-package then we want to allow instances of
         // the meta-classes to be created on the diagram...

         // self.addMetaTray();
         
         // Assume that all class diagrams have an XCore tray and add in the default
         // tools that come with that language...
         
         self.XCoreToolGroups();
      
         // Any toggles that need access to the mapping...
         
         self.defineToggles();
         
         // Any actions that require access to the mapping...
         
         self.defineActions();
     
         // If there are any sub-classes of the standard model elements for a class
         // diagram then we need a stereotypes node group to create them...
      
         if not (dependencyToolGroups->isEmpty and
                 packageToolGroups->isEmpty and 
                 classToolGroups->isEmpty and 
                 attributeToolGroups->isEmpty)
         then diagram.defineToolGroup(languageName)
         end;
         
         self.addImportTrays();

         // Add in a catch all element creator that will offer all model element
         // types in the meta-package via a selection list.
         
         if xmf.preference("EnableMeta")
         then
           diagram.defineNewHandler(
             "XCore",
             "Object",
             false,
             "XCore/Other.gif",
             let 
               p = self.package;
               m = self 
             in
               @Operation(x,y)
                 m.dropOtherNode( x,y,p.metaPackage().allClasses()
                   ->select(c | not c.isAbstract)
                   - Set{// the following cannot be created by raw instantiation
                         // or cannot supported by class diagrams...
                         BasicArray,Bind,Buffer,Classifier,CodeBox,Collection,
                         CompiledOperation,Constructor,Daemon,Doc,Exception,
                         ForeignOperation,InitialisedAttribute,InterpretedOperation,
                         MachineException,Operation,Parameter,Seq,Set,Snapshot } )
               end
             end)
         end;

         // Add in the stereotype creation buttons...
         
         @For c in packageToolGroups do
           let handler = 
                 @Operation(x,y) 
                   self.newPackageNode(x,y,c.pathSeq())
                 end
           in diagram.defineNewHandler(
                languageName,
                c.name.toString(),
                false,
                "XCore/Package.gif",
                handler)
           end
         end;
         @For c in classToolGroups do
           let handler(x,y) = self.newClassNode(x,y,c.pathSeq())
           in diagram.defineNewHandler(
                languageName,
                c.name.toString(),
                false,
                "XCore/Class.gif",
                handler)
           end
         end;
         @For c in attributeToolGroups do
           let handler(sourcePort,targetPort) = self.newAttributeEdge(sourcePort,targetPort,c.pathSeq());
               selfHandler(x,y) = self.newSelfAttributeEdge(x,y,c.pathSeq())
           in diagram.defineNewHandler(
                languageName,
                c.name.toString(),
                true,
                "XCore/Attribute.gif",
                handler);
              diagram.defineNewHandler(
                languageName,
                c.name.toString() + " (self)",
                false,
                "XCore/Attribute.gif",
                handler) 
           end
         end;
         @For c in dependencyToolGroups do
           let handler(sourcePort,targetPort) = self.newDependencyEdgeCommand(sourcePort,targetPort,c.pathSeq())
           in diagram.defineNewHandler(
                languageName,
                c.name.toString(),
                true,
                "XCore/Dependency.gif",
                handler)
           end
         end;
         @For c in otherToolGroups do
           let p = self.package;
               m = self then
               handler = self.instantiateClassHandler(c,p,m)
           in diagram.defineNewHandler(
                languageName,
                c.name.toString(),
                false,
                "XCore/Object.gif",
                handler)
           end
         end
       end
    end

    @Operation element()
      package
    end

    @Operation diagram()
      diagram
    end

    @Operation subMaps()
      self.classMaps +
      self.packageMaps +
      self.docMaps +
      self.elementMaps +
      self.inheritanceMaps +
      self.attributeMaps +
      self.containerMaps +
      self.dependencyMaps +
      self.associationMaps
    end
    
    @Operation setToPartialSyncMode()
      super();
      self.addEventFilter("class added",ElementXDiagram::defaultEventFilterHandler);
      self.addEventFilter("package added",ElementXDiagram::defaultEventFilterHandler)
    end
    
    @Operation setToTotalSyncMode()
      super();
      self.removeEventFilter("class added");
      self.removeEventFilter("package added")
    end

    @Operation missingPackageContents()
      let packageClasses = package.classes;
          packagePackages = package.packages then
          diagramClasses = classMaps->collect(m | m.class)->asSet;
          diagramPackages = packageMaps->collect(m | m.package)->asSet then
          missingClasses = packageClasses - diagramClasses;
          missingPackages = packagePackages - diagramPackages
      in
          missingClasses + missingPackages
      end
    end
    
    @Operation addMissingContents()
      let missingContents = self.missingPackageContents()
      in
        if not missingContents->isEmpty
        then
          let elementSeq = missingContents->asSeq.sortNamedElements_CaseIndependent();
              stringOp = 
                @Operation(element)
                  element.nameString() + " : " + element.of().nameString()
                end then
              elements = xmf.selects("Add Missing Package Contents",
                                     "Select package contents to add to this diagram",
                                     elementSeq,
                                     null,
                                     stringOp)
          in
            if elements <> 0-1
            then
              @For e in elements do
                self.addDropped(e)
              end
            end
          end
        else
          xmf.message("All package contents are already shown in the diagram.")
        end
      end
    end

    @Operation handleDiagramEvent(diagram,event)
      super(diagram,event);
      let eventType = event->at(0)
      in
        @Case eventType of
          "add missing contents" do self.addMissingContents() end
        else self
        end
      end
    end
    
    @Operation validEdge(edge)
      let
        type = edge.of(); 
        source = edge.source.owner;
        target = edge.target.owner
      in
        @Case type of
          [ContainsEdge] do
            if source.isKindOf(NoteNode) or target.isKindOf(NoteNode)
            then
              edge.delete();
              false
            else
              true
            end
          end
          [AssociationEdge] do
            if source.isKindOf(NoteNode) or target.isKindOf(NoteNode)
            then
              edge.delete();
              false
            else
              true
            end
          end
          else true
        end
      end
    end
    
    @Operation updateToolGroup(group)
    	false // This Operation is defined in the Multilevel Add-On, but used in the main program. It has not funtion then anyway.
    end
    
  end
Source Code:
    @Operation textChanged(text : String):XCore::Element
      try
        let unit : XCore::Element = OCL::OCL.grammar.parseString(text,"CompilationUnit",Seq{});
            walker : XCore::Element = EditorWalker(self)
        in self.commandInterpreter().clearErrors(self);
           self.commandInterpreter().rendering(self,false);
           walker.walk(unit,Seq{});
           walker.reset();
           self.commandInterpreter().rendering(self,true)
        end
      catch(exception)
        @TypeCase(exception)
          Parser::ParseError do
            self.commandInterpreter().syntaxError(self,exception.errorPos,exception.message);
            self.commandInterpreter().rendering(self,true)
          end
        end
      end
    end
constant(0) = Array()
constant(1) = Seq{Seq{exception,Seq{2,Seq{'XCore','Element'}}},Seq{2,Seq{'XCore','Element'}},Seq{'parserImports'}}
constant(2) = CodeBox('anonymous',1,Code(<Unknown instruction 109>,<Unknown instruction 109>,LOCAL 0,SETLOCPOP 1,UNBINDDYN Array(typeCaseValue),<Unknown instruction 109>,<Unknown instruction 109>,DYNAMIC(1) 'Parser',GETELEMENT 'ParseError',<Unknown instruction 109>,LOCAL 1,ISKINDOF,SKPF 17,STARTCALL,<Unknown instruction 109>,SELF 0,DOTLOCAL Array(typeCaseValue) 3,DOTLOCAL Array(typeCaseValue) 4,STARTCALL,SENDSELF 0 'commandInterpreter',SEND 3 'syntaxError',POP,<Unknown instruction 109>,SELF 0,<Unknown instruction 109>,PUSHTRUE,STARTCALL,SENDSELF 0 'commandInterpreter',TAILSEND 2 'rendering',SKP 15,STARTCALL,<Unknown instruction 109>,LOCAL 0,<Unknown instruction 101>,<Unknown instruction 109>,DYNAMIC(8) 'xmf',SEND 1 'message',POP,<Unknown instruction 109>,SELF 0,<Unknown instruction 109>,PUSHTRUE,STARTCALL,SENDSELF 0 'commandInterpreter',TAILSEND 2 'rendering',NOOP,RETURN,RETURN))
constant(3) = 'anonymous'
constant(4) = CodeBox('anonymous',2,Code(<Unknown instruction 109>,STARTCALL,<Unknown instruction 109>,SELF 0,ENTERDYN 1 'EditorWalker',STARTCALL,<Unknown instruction 109>,GLOBAL 0 0,<Unknown instruction 109>,PUSHSTR CompilationUnit,<Unknown instruction 109>,MKSEQ 0,<Unknown instruction 109>,DYNAMIC(3) 'OCL',GETELEMENT 'OCL',DOT 'grammar',SEND 3 'parseString',SETLOCPOP 0,SETLOCPOP 1,UNBINDDYN Array(unit,walker),UNBINDDYN (),STARTCALL,<Unknown instruction 109>,SELF 0,STARTCALL,SENDSELF 0 'commandInterpreter',SEND 1 'clearErrors',POP,STARTCALL,<Unknown instruction 109>,SELF 0,<Unknown instruction 109>,PUSHFALSE,STARTCALL,SENDSELF 0 'commandInterpreter',SEND 2 'rendering',POP,STARTCALL,<Unknown instruction 109>,LOCAL 0,<Unknown instruction 109>,MKSEQ 0,SENDLOCAL 2 'walk'1,POP,STARTCALL,SENDLOCAL 0 'reset'1,POP,STARTCALL,<Unknown instruction 109>,SELF 0,<Unknown instruction 109>,PUSHTRUE,STARTCALL,SENDSELF 0 'commandInterpreter',SEND 2 'rendering',<Unknown instruction 108>,<Unknown instruction 108>,RETURN,RETURN))
----------------------------------------------------------------------------------------------------


----------------------------------------------------------------------------------------------------
Called(60): EventHandler::anonymous at line 115 char 0
Self: TextEventHandler[fields=roleFiller,owner,input,debug,calls,thread]
Supers: readEvent,callSelf,call,start,debug,find,debug,toString,dispatchEvent,deleteFromCalls,addToCalls,delete_client_check,delete_client,removeFromOwner,setOwner,addTo,allOwners,deleteRecursive,owner,getDefaultClipboardSource,delete_client_redirect,oldEdit,edit,getChildren,getChildrenSlots,orderSequence,removeDiagramListeners,getDiagramListeners,nodeEvent,getAvailableMappings,propertyTarget,slotMissing,synchronise,slotDenied,setProperty,setHotLoad,setDaemonsActive,setDaemons,set,renameSlot,removeStructuralFeature,removeDaemonsWithTarget,removeDaemonsWithId,removeDaemonNamed,removeDaemon,machineInit,initSlots,init,hotLoaded,hotLoad,hasSlot,hasProperty,getProperties,getProperty,get,hasStructuralFeature,getStructuralFeatureNames,hasDaemonWithTarget,hasDaemonWithIdAndTarget,hasDaemonWithId,hasDaemonNamed,fire,destroyDaemon,daemonWithIdAndTarget,daemonWithId,daemonNamed,daemonsActive,daemons,allDaemonsWithTarget,allDaemonsWithId,compositeValues,allCompositeValuesAndSelf,allCompositeValues,addStructuralFeature,addPersistentDaemon,addMultiDaemon,addDaemon,slots,addMissingSlot,slotMissing,applyMapping_client,changedOnDiagram,addDiagramListener,removeDiagramListener,getDiagramListenerNamed,orderSequence,calcChildrenSlots,getChildrenToolTips,observeBy,observeBy,observedBy,observedBy,ignoreBy,ignoreByAll,saveXTO,saveXTOFile,showDiagram,showAndLayoutDiagram,toSVG,graphVizNode,getChildren,showModelBrowserNode,invokeOp,edit_redirect,assignToGlobal,pasteFromClipboard,copyToClipboard,cutToClipboard,getDefaultClipboardSource,legalSlotChangeCheck,deployXML,selectDiagram,createDiagramType,createDiagram,doubleClick,slotAffectsLabel,labelString,pprint,pprint,pprint,pprintln,toType,writeXMLFile,writeXML,lift,toSnapshot,toSnapshot,allHTMLEntries,allHTMLPackages,toHTML,writeHTML,writeHTML,writeHTMLAllEntries,writeHTMLAllPackages,writeHTMLIndex,writeHTMLOverview,yield,toString,systemId,setRoleFillerDialog,setOf,send,save2,save,removeDaemon,removeDaemon,println,print,oclIsKindOf,oclIsTypeOf,setDelegation,noOperationFound,isTypeOf,isReallyKindOf,init,init,of,isKindOf,addTo,checkConstraints,copy,deleteRecursive,die,equals,error,ferror,hashCode,isWithinNameSpace,isProtected,isViewProtected,isDeleteProtected,nameString,doc,edit,createDiagramType,createDiagramType,showAndLayoutDiagram,legalSlotChangeCheck,legalNameChangeCheck,getDefaultClipboardTarget,cutToClipboard_transaction,copyToClipboard_transaction,assignToGlobal,browse_redirect,evaluateExpression,selectModelBrowserNode,browse,getChildrenToolTips,createTool,showDiagram,oldShowDiagram,populateGraphViz
Local(0): Array(textChanged,660,parserImport XOCL;
parserImport XMap; 

import Clients;
import Diagrams;
import DiagramsMapping;
import ClassDiagrams;
import ClassMapping;
import Menus;
import IO;

context ClassMapping

  @Class PackageXClassDiagram extends ElementXDiagram
  
    @Attribute package          : Package                         (?)   end
    @Attribute diagram          : ClassDiagram                    (?)   end
    @Attribute classMaps        : Seq(ClassXNode)                 (+,-) end
    @Attribute packageMaps      : Seq(PackageXNode)               (+,-) end
    @Attribute docMaps          : Seq(DocXNote)                   (+,-) end
    @Attribute elementMaps      : Seq(ElementXNode)               (+,-) end
    @Attribute inheritanceMaps  : Seq(ClassifierXInheritanceEdge) (+,-) end
    @Attribute delegationMaps   : Seq(DelegationXDelegationEdge)  (+,-) end
    @Attribute attributeMaps    : Seq(AttributeXAttributeEdge)    (+,-) end
    @Attribute containerMaps    : Seq(ContainerXContainsEdge)     (+,-) end
    @Attribute dependencyMaps   : Seq(DependencyXDependencyEdge)  (+,-) end
    @Attribute associationMaps  : Seq(AssociationXAssociationEdge)(+,-) end
    @Attribute associationInstanceMaps  : Seq(AssociationInstanceXAssociationInstanceEdge)(+,-) end
    @Attribute intrinsicAssociationConstraintMaps  : Seq(IntrinsicAssociationConstraintXIntrinsicAssociationConstraintEdge)(+,-) end
    
    @Constructor(package,diagram,owner)
      self.init(Seq{package,diagram})
    end
    
    @Constructor(package,diagram) !
    
      // This assumes that we are starting with a package
      // and generating the diagram.
      
      diagram.setOwner(self);
      self.setHotLoad(true);
      self.registerWithDiagram(diagram);
      self.checkDaemons();
      self.setGlobalMenu(diagram,Set{Package,diagram.of()})
    end

    //@Constructor(package,diagram,classMaps) end
    
    @Operation abstractClassMaps()
      classMaps + packageMaps
    end
    
    @Operation actionAdded(handler)
      // Add the action to the appropriate group in the palette...
      let name = handler.getProperty("actionName",handler.name.toString());
          icon = handler.getProperty("actionIcon","Tools/Activity.gif");
          group = handler.getProperty("actionGroup","Actions")
      in diagram.defineToolGroup(group);
         diagram.defineActionHandler(group,name,name,icon,handler)
      end
    end
    
    @Operation actionRemoved(handler)
      "PackageXClassDiagram::actionRemoved not implemented".println()
    end
    
    @Operation add(element)
      @TypeCase(element)
        AssociationXAssociationEdge do
          self.addAssociationMap(element)
        end
        IntrinsicAssociationConstraintXIntrinsicAssociationConstraintEdge do
          self.addIntrinsicAssociationConstraintMap(element)
        end        
        AssociationInstanceXAssociationInstanceEdge do
          self.addAssociationInstanceMap(element)
        end
        AttributeXAttributeEdge do
          self.addAttributeMap(element)
        end
        ClassifierXInheritanceEdge do
          self.addInheritanceMap(element)
        end
        DelegationXDelegationEdge do
          self.addDelegationMap(element)
        end
        DependencyXDependencyEdge do
          self.addDependencyMap(element)
        end
        ClassXNode do 
          self.addClassMap(element)
        end
        ContainerXContainsEdge do
          self.addContainerMap(element) 
        end
        ElementXNode do 
          self.addElementMap(element)
        end
        Associations::Association do
          self.associationAdded(element)
        end
        XCore::Package do
          self.packageAdded(element)
        end
        XCore::Class do
          self.classAdded(element)
        end
        PackageXNode do
          self.addPackageMap(element)
        end
        DocXNote do
          self.addDocMap(element)
        end
        else
          self.elementAdded(element)
        //else format(stdout,"PackageXClassDiagram::add: unknown element " + element.toString())
      end
    end
    
    @Operation addCreationButton(class)
    
      // Add a palette creation button for the class. Take appropriate action
      // depending on the type of the class. In addition, if the class is a meta-class
      // then add an extension point for displaying instances of the class...
      
      let className = class.name.toString();
          groupNames = diagram.getGroupNames() then
          groupName = xmf.select("Select Group","Select a group for the button",groupNames,"",@Operation(x) x end);
          metaHandler(x,y) = self.newClassNode(x,y,class.pathSeq());
          classHandler = self.instantiateClassHandler(class,package,self);
          attHandler(sourcePort,targetPort) = self.newAttributeEdge(sourcePort,targetPort,class.pathSeq())
      in if not(groupName = "" or groupName = null) 
         then 
           if class.inheritsFrom(XCore::Attribute)
           then 
             diagram.defineNewHandler(groupName,className,true,"XCore/Attribute.gif",attHandler);
             // Perhaps this should be done via another menu item...
             self.defineAttributeRegistryContributions(class)
           elseif class.isMetaClass()
           then 
             diagram.defineNewHandler(groupName,className,false,"XCore/Class.gif",metaHandler);
             // Perhaps this should be done via another menu item...
             self.defineMetaClassRegistryContributions(class)
           else diagram.defineNewHandler(groupName,className,false,"XCore/Object.gif",classHandler)
           end
         end
      end
    end

    @Operation addDropped(element)
      @TypeCase(element)
        XCore::Package do
          self.packageDropped(element);
          self.generateEdges()
        end
        XCore::Class do
          self.classDropped(element);
          self.generateEdges()
        end
        else format(stdout,"PackageXClassDiagram::addDropped: unknown element " + element.toString())
      end
    end
    
    @Operation addAssociationMap(associationMap)
      self.addToAssociationMaps(associationMap);
      associationMap.setOwner(self)
    end
    
   @Operation addIntrinsicAssociationConstraintMap(intrinsicAssociationConstraintMap)
      self.addToIntrinsicAssociationConstraintMaps(intrinsicAssociationConstraintMap);
      intrinsicAssociationConstraintMap.setOwner(self)
    end

    @Operation addAssociationInstanceMap(associationInstanceMap)
      self.addToAssociationInstanceMaps(associationInstanceMap);
      associationInstanceMap.setOwner(self)
    end
            
    @Operation addAttributeMap(attributeMap)
      self.attributeMaps := attributeMaps->prepend(attributeMap);
      attributeMap.setOwner(self)
    end
    
    @Operation addAttribute(attribute)
//     let acMaps = self.abstractClassMaps()
//      in
//        @Find(sourceMap,acMaps)
//          when sourceMap.element() = attribute.owner
//          do @Find(targetMap,acMaps)
//               when targetMap.element() = attribute.underlyingType()
//               do let 
//                    edge = diagram.makeAttribute(sourceMap.node,targetMap.node,attribute.of().pathSeq());
//                    //type = attribute.type then
//                    //mult = if type.isKindOf(Set) then "*" elseif type.isKindOf(Seq) then "* <<ordered>>" else "" end
//                    mult = AttributeXAttributeEdge::calcMultLabelString(attribute.mult())
//                  in  
//                    edge.setName(attribute.name.toString());
//                    edge.setMult(mult);
//                    let attributeEdgeMap = AttributeXAttributeEdge(attribute,edge)
//                    in  
//                      self.add(attributeEdgeMap);
//                      self.diagram.add(edge)
//                    end
//                  end
//             end
//        end
//      end
      null
    end
    
    @Operation addClass(class)
      let package = 
            if package.classes->includes(class) 
            then "" 
            else "(from " + class.owner.path() + ")"
            end;
          x = diagram.selectedX() + 100;
          y = diagram.selectedY() + 100 then
        node = ClassNode(class.name.toString(),package,class.isAbstract,class.of().pathSeq(),x,y,diagram.showAttributes(),diagram.showOperations(),diagram.showMetaslots()) then
        map = ClassXNode(class,node,self)
      in 
        @WithoutRendering(self.diagram)
          self.addClassMap(map);
          diagram.addNode(node);
          node.new(diagram);
          if class.isAbstract then
            node.setIsAbstract(true)
          end;
          if node.showAttributes then
            map.generateAttributes()
          end;
          if node.showOperations then
            map.generateOperations()
          end;
          if node.showMetaslots then
            map.generateMetaslots()
          end;
          if node.showOperationValues then
            map.generateOperationValues()
          end;
          node
        end
      end
    end
    
    @Operation addClassMap(classMap)
      self.classMaps := classMaps->prepend(classMap);
      classMap.setOwner(self)
    end
    
    @Operation addContainerMap(containerMap)
      self.addToContainerMaps(containerMap);
      containerMap.setOwner(self)
    end

    /* @Operation addContentsChangedDaemon()
      package.addContentDaemon(self,
        @Operation(newContents,oldContents)
          let
            added = newContents - oldContents;
            removed = oldContents - newContents
          in
            if not added->isEmpty then
              @For value in added do
                //if not value.isKindOf(Class) and not value.isKindOf(Package)
                //then self.elementAdded(value)
                if value.isKindOf(Associations::Association)
                then self.associationAdded(value)
                end
              end 
            else
            
            if not removed->isEmpty then
              @For value in removed do
                //if not value.isKindOf(Class) and not value.isKindOf(Package)
                //then self.elementRemoved(value)
                if value.isKindOf(Associations::Association)
                then self.associationRemoved(value)
                end
              end 
            end
          end
        end
      )
    end */

    @Operation addDependencyMap(dependencyMap)
      self.addToDependencyMaps(dependencyMap);
      dependencyMap.setOwner(self)
    end
    
    @Operation addDelegationMap(delegationMap)
      self.addToDelegationMaps(delegationMap);
      delegationMap.setOwner(self)
    end
    
    @Operation addDocMap(docMap)
      self.addToDocMaps(docMap);
      docMap.setOwner(self)
    end
    
    @Operation addElementMap(elementMap)
      self.addToElementMaps(elementMap);
      elementMap.setOwner(self)
    end
    
    @Operation addImportTrays()
      @For i in package.imports when i.isReallyKindOf(Package) and not Seq{XCore,Root}->includes(i) do
        // The imports of a package are available as buttons in the palette
        // to create objects on the diagram. This allows type and instance
        // to be mixed on a single diagram...
        self.addImportTray(i)
      end
    end
    
    @Operation addImportTray(package)
      let name = package.name.toString();
          map = self
      in diagram.defineToolGroup(name);
         @For class in package.classes when not(class.isAbstract) do
           let handler(x,y) = map.add(class())
           in diagram.defineNewHandler(name,class.name.toString(),false,"XCore/Object.gif",handler)
           end
         end
      end
    end
    
    @Operation addInheritanceMap(inheritanceMap)
      self.inheritanceMaps := inheritanceMaps->prepend(inheritanceMap);
      inheritanceMap.setOwner(self)
    end
    
    @Operation addMetaTray()
      if package.isMetaPackage()
      then 
        let parents = package.allParents() then
            contents = parents->iterate(p O=Set{} | O + p.contents()) then
            classes = contents->select(o | o <> null and o.isKindOf(Class)) then
            attributes = classes->select(c | c.inheritsFrom(Attribute));
            associations = classes->select(c | c.inheritsFrom(Associations::Association)) then
            classes = classes->including(Class)->excluding(Package)->excluding(Array)->excluding(Enum) then 
            metaclasses = classes->select(c | c.isMetaClass());
            thePackage = package
        in diagram.defineToolGroup("Meta Elements");
           @For a in attributes do
             diagram.defineNewHandler(
               "Meta Elements",
               a.name.toString() + "(subclass)",
               false,
               "XCore/Attribute.gif",
               @Operation(x,y) 
                 // Create a sub-class of a..
                 let class = Class(thePackage.newName(a.name.toString() + "Like"))
                 in class.addParent(a);
                    thePackage.add(class);
                    self.elementChanged()
                 end
               end)
           end;
           @For a in associations do
             diagram.defineNewHandler(
               "Meta Elements",
               a.name.toString() + "(subclass)",
               false,
               "XCore/Association.gif",
               @Operation(x,y) 
                 // Create a sub-class of a..
                 let class = Class(thePackage.newName(a.name.toString() + "Like"))
                 in class.addParent(a);
                    thePackage.add(class);
                    self.elementChanged()
                 end
               end)
           end;
           @For metaclass in metaclasses do
             diagram.defineNewHandler(
               "Meta Elements",
               metaclass.name.toString() + "(subclass)",
               false,
               "XCore/Class.gif",
               @Operation(x,y) 
                 // Create a new instance of the meta-class and make it inherit 
                 // from Class (actually this should be selectable). Should get
                 // the node and move it...
                 let class = metaclass(thePackage.newName(metaclass.name.toString()))
                 in class.addParent(Class);
                    thePackage.add(class);
                    self.elementChanged()
                 end
               end)
           end
        end
      else self.deleteMetaTray()
      end
    end
    
    @Operation addPackageMap(packageMap)
      self.addToPackageMaps(packageMap);
      packageMap.setOwner(self)
    end
    
    @Operation addPackage(package)
      let owningPackage = 
        if self.package.packages->includes(package) 
        then "" 
        else "(from " + package.owner.path() + ")"
        end then
        node = PackageNode(package.name.toString(),owningPackage,package.of().pathSeq(),0,0)
      in
        @WithoutRendering(self.diagram)
          self.add(PackageXNode(package,node,self));
          diagram.add(node);
          node.new(diagram)
        end
      end
    end
    
    @Operation associationInstanceAdded(associationInstance)
      if not associationInstanceMaps->exists(map | map.associationInstance = associationInstance)
      then
      	let acMaps = self.abstractClassMaps()
        in
          @Find(sourceMap,acMaps)
            when sourceMap.element() = associationInstance.class1
            do @Find(targetMap,acMaps)
              when targetMap.element() = associationInstance.class2
                do 
	                let name_label = Label("instance of " + associationInstance.class1.of().getAttribute(associationInstance.name1).association.name,"",0,-16,true, Color(120,120,120),0+1) then
						edge = AssociationInstanceEdge(name_label, sourceMap.node.ports().head(),targetMap.node.ports().head(),associationInstance.class1.of().getAttribute(associationInstance.name1).association.pathSeq())
			        in self.add(AssociationInstanceXAssociationInstanceEdge(associationInstance,edge));
        			   edge.new(self.diagram);
		        	   self.diagram.add(edge)
	        		end            
              end
          end
        end
      end
    end
    
    @Operation intrinsicAssociationConstraintAdded(intrinsicAssociationConstraint)
	  if not intrinsicAssociationConstraintMaps->exists(map | map.intrinsicAssociationConstraint = intrinsicAssociationConstraint)
      then
      	let acMaps = self.abstractClassMaps()
        in
          @Find(sourceMap,acMaps)
            when sourceMap.element() = intrinsicAssociationConstraint.constraint1.owner
            do @Find(targetMap,acMaps)
              when targetMap.element() = intrinsicAssociationConstraint.constraint2.owner
                do 
	                let name_label = Label(intrinsicAssociationConstraint.refersTo.name,"",0,-16,true, Color(120,120,120),0+1) then
						edge = IntrinsicAssociationConstraintEdge(name_label, sourceMap.node.ports().head(),targetMap.node.ports().head(),intrinsicAssociationConstraint.refersTo.pathSeq())
			        in self.add(IntrinsicAssociationConstraintXIntrinsicAssociationConstraintEdge(intrinsicAssociationConstraint,edge));
        			   edge.new(self.diagram);
		        	   self.diagram.add(edge)
	        		end            
              end
          end
        end
      end
     end
    
    @Operation associationAdded(association)
      if not associationMaps->exists(map | map.association = association)
      then
        let acMaps = self.abstractClassMaps()
        in
          @Find(sourceMap,acMaps)
            when sourceMap.element() = association.end1.underlyingType()
            do @Find(targetMap,acMaps)
              when targetMap.element() = association.end2.underlyingType()
                do let name = association.name.toString();
                  mult1 = Multiplicity(association.end1.mult.labelString(),"start");
                  mult2 = Multiplicity(association.end2.mult.labelString(),"end") then 
//                  instLevel1 = Label("Ø", "start", 40, 40, true, true, Color(0,0,0));
                  instLevel1 = Label("Ø", "start", 40, 40, true, Color(0,0,0));
//                  instLevel2 = Label("Ø", "start", -40, -40, true, true, Color(0,0,0));
                  instLevel2 = Label("Ø", "start", -40, -40, true, Color(0,0,0));
                  varName1 = Label(association.end1.name.toString(),"start",10,10,true);
                  varName2 = Label(association.end2.name.toString(),"end",-10,-10,true);
                  displayName1 = Label("displayName1","",0,-16,true, Color(0,0,0),0+1);
            	  displayName2 = Label("displayName2","",0, 16,true, Color(0,0,0),0-1) then
                  end1 = AssociationEnd(varName1,displayName1,mult1,instLevel1);
                  end2 = AssociationEnd(varName2,displayName2,mult2,instLevel2) then
                  edge = diagram.makeAssociation(name,end1,end2,sourceMap.node,targetMap.node,association.of().pathSeq())
                in self.add(AssociationXAssociationEdge(association,edge));
                  self.diagram.add(edge)
                end
              end
          end
        end
      end
    end
    
    @Operation attributeAdded(attribute)

      // Processes the addition of an attribute wrt the supplied
      // mappings. The accessors are used to map the maps to the
      // underlying model elements.

      if not attributeMaps->exists(map | map.attribute = attribute) and
         not attribute.isKindOf(Associations::End)
      then
        self.addAttribute(attribute)
      end
    end
    
    @Operation attributeDropped(attribute)
      self.addAttribute(attribute)
    end
    
    @Operation associationEdgeAdded(associationEdge)
      if self.validEdge(associationEdge)
      then
        if not associationMaps->exists(map | map.edge = associationEdge)
        then
          let acMaps = self.abstractClassMaps()
          in
            @Find(end1Map,acMaps)
              when end1Map.node = associationEdge.sourceNode()
              do @Find(end2Map,acMaps)
                   when end2Map.node = associationEdge.targetNode()
                   do let name = associationEdge.name; //package.newName("A");
                          class1 = end1Map.element();
                          class2 = end2Map.element() then
                          class1Name = class1.name.toString().lowerCaseInitialLetter();
                          class2Name = class2.name.toString().lowerCaseInitialLetter() then
                          end1Name = if class2.hasElement(class1Name) then class2.newName("a") else class1Name end;
                          end2Name = if class1.hasElement(class2Name) then class1.newName("b") else class2Name end;
                          metaClass = associationEdge.typePath->ref(Seq{Root,XCore,Associations}) then
                          association = metaClass(name);
                          end1 = Associations::End(end1Name,class1,Associations::One());
                          end2 = Associations::End(end2Name,class2,Associations::One())
                      in  //associationEdge.setName(name);
                          associationEdge.end1.setName(end1Name);
                          associationEdge.end2.setName(end2Name);
                          association.setEnd1(end1);
                          association.setEnd2(end2);
                          self.add(AssociationXAssociationEdge(association,associationEdge));
                          package.add(association);
                          self.elementChanged();
                          association.init()
                      end
                 end
            end       
          end
        end
      end
    end
    
    @Operation attributeEdgeAdded(attributeEdge)
      if self.validEdge(attributeEdge)
      then
        if not attributeMaps->exists(map | map.edge = attributeEdge)
        then
          let acMaps = self.abstractClassMaps()
          in
            @Find(ownerMap,acMaps)
              when ownerMap.node = attributeEdge.sourceNode()
              do @Find(typeMap,acMaps)
                   when typeMap.node = attributeEdge.targetNode()
                   do let class = ownerMap.element();
                        type = typeMap.element() then
                        typeName = type.name.toString().lowerCaseInitialLetter() then
                        name = if class.hasElement(typeName) then class.newName("att") else typeName end; 
                        metaClass = attributeEdge.typePath->ref(Seq{Root,XCore}) then
                        attribute = metaClass(name,type) then
                        attributeEdgeMap = AttributeXAttributeEdge(attribute,attributeEdge)
                    in  attributeEdge.setName(name);
                        self.add(attributeEdgeMap);
                        class.add(attribute);
                        self.elementChanged()
                    end
                 end
            end
          end
        end
      end
    end
    
    @Operation associationEdgeRemoved(associationEdge)
      @Find(associationMap,associationMaps)
        when associationMap.edge = associationEdge
        do self.remove(associationMap);
           let association = associationMap.association
           in  association.remove();
               association.owner.remove(association)
           end
      end
    end

    @Operation associationInstanceEdgeAdded(associationInstanceEdge)
      if self.validEdge(associationInstanceEdge)
      then
        if not associationInstanceMaps->exists(map | map.edge = associationInstanceEdge)
        then
          let acMaps = self.abstractClassMaps()
          in
            @Find(class1Map,acMaps)
              when class1Map.node = associationInstanceEdge.sourceNode()
              do @Find(class2Map,acMaps)
                   when class2Map.node = associationInstanceEdge.targetNode()
                   do let name = associationInstanceEdge.name.text; //package.newName("A");
                          class1 = class1Map.class;
                          class2 = class2Map.class then
                          metaClass = associationInstanceEdge.typePath->ref(Seq{Root,package}) then
						  associationInstance = Associations::AssociationInstance(package.newName(metaClass.name+"Instance"))
                      in  associationInstance.setSlot1(class1,metaClass.end2.name);
                          associationInstance.setSlot2(class2,metaClass.end1.name);
                          associationInstance.checkDaemons();
                          self.add(AssociationInstanceXAssociationInstanceEdge(associationInstance,associationInstanceEdge));
                          package.add(associationInstance);
                          self.elementChanged();
                          associationInstance.init()
                      end
                 end
            end       
          end
        end
      end
    end
    
    @Operation associationInstanceEdgeRemoved(associationInstanceEdge)
      @Find(associationInstanceMap,associationInstanceMaps)
        when associationInstanceMap.edge = associationInstanceEdge
        do self.remove(associationInstanceMap);
           let associationInstance = associationInstanceMap.associationInstance
           in  associationInstance.remove();
               associationInstance.owner.remove(associationInstance)
           end
      end
    end

	 @Operation intrinsicAssociationConstraintEdgeAdded(intrinsicAssociationConstraintEdge)
      if self.validEdge(intrinsicAssociationConstraintEdge)
      then
        if not intrinsicAssociationConstraintMaps->exists(map | map.edge = intrinsicAssociationConstraintEdge)
        then
          let acMaps = self.abstractClassMaps()
          in
            @Find(class1Map,acMaps)
              when class1Map.node = intrinsicAssociationConstraintEdge.sourceNode()
              do @Find(class2Map,acMaps)
                   when class2Map.node = intrinsicAssociationConstraintEdge.targetNode()
                   do let name = intrinsicAssociationConstraintEdge.name.text; //package.newName("A");
                          class1 = class1Map.class;
                          class2 = class2Map.class then
                          metaClass = intrinsicAssociationConstraintEdge.typePath->ref(Seq{Root,package}) then
						  intrinsicAssociationConstraint = Associations::IntrinsicAssociationConstraint(package.newName(metaClass.name+"Constraint"))
                      in  intrinsicAssociationConstraint.setConstraint1(class1.newIntrinsicAssociationConstraint(metaClass.end1,class2));
                          intrinsicAssociationConstraint.setConstraint2(class2.newIntrinsicAssociationConstraint(metaClass.end2,class1));
                          intrinsicAssociationConstraint.setRefersTo(metaClass);
                          intrinsicAssociationConstraint.checkDaemons();
                          self.add(IntrinsicAssociationConstraintXIntrinsicAssociationConstraintEdge(intrinsicAssociationConstraint,intrinsicAssociationConstraintEdge));
                          package.add(intrinsicAssociationConstraint);
                          intrinsicAssociationConstraint.init()
                      end
                 end
            end       
          end
        end
      end
    end
    
    @Operation intrinsicAssociationConstraintEdgeRemoved(intrinsicAssociationConstraintEdge)
      @Find(intrinsicAssociationConstraintMap,intrinsicAssociationConstraintMaps)
        when intrinsicAssociationConstraintMap.edge = intrinsicAssociationConstraintEdge
        do self.remove(intrinsicAssociationConstraintMap);
           let intrinsicAssociationConstraint = intrinsicAssociationConstraintMap.intrinsicAssociationConstraint
           in  intrinsicAssociationConstraint.remove();
               intrinsicAssociationConstraint.owner.remove(intrinsicAssociationConstraint)
           end
      end 
      			
    end

    @Operation associationRemoved(association)
      @Find(associationMap,associationMaps)
        when associationMap.association = association
        do 
          self.remove(associationMap);
          associationMap.edge.delete()
      end
    end

    @Operation associationInstanceRemoved(associationInstance)
      @Find(associationInstanceMap,associationInstanceMaps)
        when associationInstanceMap.associationInstance = associationInstance
        do 
          self.remove(associationInstanceMap);
          associationInstanceMap.edge.delete()
      end
    end

    @Operation intrinsicAssociationConstraintRemoved(intrinsicAssociationConstraint)
      @Find(intrinsicAssociationConstraintMap,intrinsicAssociationConstraintMaps)
        when intrinsicAssociationConstraintMap.intrinsicAssociationConstraint = intrinsicAssociationConstraint
        do 
          self.remove(intrinsicAssociationConstraintMap);
          intrinsicAssociationConstraintMap.edge.delete()
      end
    end
    
    @Operation delegationSourceChanged(delegationMap,newSourceNode,oldSourceNode)
      @Find(oldClassMap,self.classMaps)
        when oldClassMap.node = oldSourceNode do 
          @Find(newClassMap,self.classMaps)
            when newClassMap.node = newSourceNode do    
              let oldClass = oldClassMap.class;
                  newClass = newClassMap.class
              in
                @WithoutDaemons(newClass)
                  newClass.delegatesTo := oldClass.delegatesTo
                end;
                @WithoutDaemons(oldClass)
                  oldClass.delegatesTo := null
                end
              end
          end  
      end  
      end   
       
    @Operation delegationTargetChanged(delegationMap,newTargetNode,sourceNode)
      @Find(sourceClassMap,self.classMaps)
        when sourceClassMap.node = sourceNode do 
          @Find(newClassMap,self.classMaps)
            when newClassMap.node = newTargetNode do    
              let sourceClass = sourceClassMap.class;
                  newClass = newClassMap.class
              in
                @WithoutDaemons(sourceClass)
                  sourceClass.delegatesTo := newClass
                end
              end
          end  
      end 
    end

    @Operation associationEnd1Changed(associationMap,newEnd1Node)
      @Find(classMap,self.abstractClassMaps())
        when classMap.node = newEnd1Node
        do let association = associationMap.association then
               end1 = association.end1
           in end1.remove();
              end1.type := classMap.element();
              end1.init();
              self.elementChanged()
        end
      end
    end
    
    @Operation associationEnd2Changed(associationMap,newEnd2Node)
      @Find(classMap,self.abstractClassMaps())
        when classMap.node = newEnd2Node
        do let association = associationMap.association then
               end2 = association.end2
           in end2.remove();
              end2.type := classMap.element();
              end2.init();
              self.elementChanged()
           end
      end
    end
    
    @Operation associationEdgeAddedDaemon(diagram,slot,associationEdge)
      self.associationEdgeAdded(associationEdge)
    end
    
    @Operation associationEdgeRemovedDaemon(diagram,slot,associationEdge)
      self.associationEdgeRemoved(associationEdge)
    end

    @Operation associationInstanceEdgeAddedDaemon(diagram,slot,associationInstanceEdge)
      self.associationInstanceEdgeAdded(associationInstanceEdge)
    end
    
    @Operation associationInstanceEdgeRemovedDaemon(diagram,slot,associationInstanceEdge)
      self.associationInstanceEdgeRemoved(associationInstanceEdge)
    end
    
    @Operation intrinsicAssociationConstraintEdgeAddedDaemon(diagram,slot,intrinsicAssociationConstraint)
      self.intrinsicAssociationConstraintEdgeAdded(intrinsicAssociationConstraint)
    end
    
    @Operation intrinsicAssociationConstraintEdgeRemovedDaemon(diagram,slot,intrinsicAssociationConstraint)
      self.intrinsicAssociationConstraintEdgeRemoved(intrinsicAssociationConstraint)
    end
            
    @Operation attributeEdgeAddedDaemon(diagram,slot,attributeEdge)
      self.attributeEdgeAdded(attributeEdge)
    end
    
    @Operation attributeEdgeRemovedDaemon(diagram,slot,attributeEdge)
      self.attributeEdgeRemoved(attributeEdge)
    end
    
    @Operation attributeEdgeRemoved(attributeEdge)
      @Find(attributeMap,attributeMaps)
        when attributeMap.edge = attributeEdge
        do
          self.remove(attributeMap);
          let attribute = attributeMap.attribute
          in  attribute.owner.remove(attribute)
          end
      end
    end
    
    @Operation attributeOwnerChanged(attributeMap)
    
      // If the owner changes then remove the attribute map
      // and re-add the attribute only if the source of the
      // attribute edge is not the current owner.
      
      @Find(map,self.abstractClassMaps())
        when map.element() = attributeMap.attribute.owner and
             map.node = attributeMap.edge.source.owner
        else self.remove(attributeMap);
             attributeMap.edge.delete();
             self.attributeAdded(attributeMap.attribute)
      end
    end
    
    @Operation attributeRemoved(attribute)
      @Find(attributeMap,attributeMaps)
        when attributeMap.attribute = attribute
        do 
          self.remove(attributeMap);
          attributeMap.edge.delete()
      end
    end
    
    @Operation attributeSourceChanged(attributeMap,newNode)
      @Find(map,self.abstractClassMaps())
        when map.node = newNode
        do let attribute = attributeMap.attribute
           in attribute.owner.remove(attribute);
              map.element().add(attribute);
              self.elementChanged()
           end
        else
          attributeMap.edge.delete()
      end
    end
    
    @Operation attributeTargetChanged(attributeMap,newClassNode)
      @Find(map,self.abstractClassMaps())
        when map.node = newClassNode
        do let attribute = attributeMap.attribute;
               mult = attributeMap.edge.mult();
               class = map.element()
           in attribute.type := class;
              attribute.updateTypeFromMult();
              self.elementChanged()
           end
        else
          attributeMap.edge.delete()
      end
    end
    
    @Operation attributeTypeChanged(attributeMap)
    
      // Remove the attribute map and re-enter the attribute
      // in the case where the edge does not have the type as
      // a target.
      
      let foundMap = 
        @Find(map,self.abstractClassMaps())
          when map.element() = attributeMap.attribute.underlyingType() and
               map.node = attributeMap.edge.target.owner
          else null
        end
      in
        if foundMap.isKindOf(Null)
        then
          self.remove(attributeMap);
          attributeMap.edge.delete();
          self.attributeAdded(attributeMap.attribute)
        end
      end
    end

    @Operation buildGlobalMenu(rightClickable)      
      let globalMenu = rightClickable.globalMenu(false)
      in
        self.buildGlobalMenuExtras(globalMenu);
        globalMenu.new();
        globalMenu
      end
    end

    @Operation buildGlobalMenuExtras(globalMenu)
      super(globalMenu);
      globalMenu.add(MenuAction("Add Missing Package Contents to Diagram",RightClickableProxy::proxyTarget,Seq{},PackageXClassDiagram::addMissingContents));
      //globalMenu.add(MenuAction("Inherit",RightClickableProxy::proxyTarget,Seq{},PackageXClassDiagram::inheritMenu));
      self
    end

    @Operation checkDaemons()
      // Check that the package and diagram have the
      // appropriate daemons.
      super();
      self.checkPackageDaemons();
      self.checkDiagramDaemons()
    end
    
    @Operation checkDiagramDaemons()
      @SlotValueChanged multi once + PackageXClassDiagram::noteNodeAdded(diagram,"noteNodes") 				  	    end;
      @SlotValueChanged multi once - PackageXClassDiagram::noteNodeRemoved(diagram,"noteNodes") 			        end;
      @SlotValueChanged multi once + PackageXClassDiagram::classNodeAddedDaemon(diagram,"classNodes")               end;
      // @SlotValueChanged multi once - PackageXClassDiagram::classNodeRemovedDaemon(diagram,"classNodes")          end;
      @SlotValueChanged multi once + PackageXClassDiagram::packageNodeAddedDaemon(diagram,"packageNodes")           end;
      // @SlotValueChanged multi once - PackageXClassDiagram::packageNodeRemovedDaemon(diagram,"packageNodes")      end;
      @SlotValueChanged multi once - PackageXClassDiagram::elementNodeRemovedDaemon(diagram,"elementNodes")         end;
      @SlotValueChanged multi once + PackageXClassDiagram::inheritanceEdgeAddedDaemon(diagram,"inheritanceEdges")   end;
      // @SlotValueChanged multi once - PackageXClassDiagram::inheritanceEdgeRemovedDaemon(diagram,"inheritanceEdges") end;
      @SlotValueChanged multi once + PackageXClassDiagram::containsEdgeAddedDaemon(diagram,"containsEdges")         end;
      @SlotValueChanged multi once - PackageXClassDiagram::containsEdgeRemovedDaemon(diagram,"containsEdges")       end;
      @SlotValueChanged multi once + PackageXClassDiagram::dependencyEdgeAddedDaemon(diagram,"dependencyEdges")     end;
      @SlotValueChanged multi once - PackageXClassDiagram::dependencyEdgeRemovedDaemon(diagram,"dependencyEdges")   end;
      @SlotValueChanged multi once + PackageXClassDiagram::delegationEdgeAddedDaemon(diagram,"delegationEdges")     end;
      @SlotValueChanged multi once - PackageXClassDiagram::delegationEdgeRemovedDaemon(diagram,"delegationEdges")   end;
      @SlotValueChanged multi once + PackageXClassDiagram::associationEdgeAddedDaemon(diagram,"associationEdges")   end;
      // @SlotValueChanged multi once - PackageXClassDiagram::associationEdgeRemovedDaemon(diagram,"associationEdges") end;
      @SlotValueChanged multi once + PackageXClassDiagram::attributeEdgeAddedDaemon(diagram,"attributeEdges")       end;
      @SlotValueChanged multi once - PackageXClassDiagram::attributeEdgeRemovedDaemon(diagram,"attributeEdges")     end;
      @SlotValueChanged multi once + PackageXClassDiagram::associationInstanceEdgeAddedDaemon(diagram,"associationInstanceEdges")   end;
      @SlotValueChanged multi once - PackageXClassDiagram::associationInstanceEdgeRemovedDaemon(diagram,"associationInstanceEdges") end;
      @SlotValueChanged multi once + PackageXClassDiagram::intrinsicAssociationConstraintEdgeAddedDaemon(diagram,"intrinsicAssociationConstraintEdges")   end;
      @SlotValueChanged multi once - PackageXClassDiagram::intrinsicAssociationConstraintEdgeRemovedDaemon(diagram,"intrinsicAssociationConstraintEdges") end

    end

    @Operation metaPackageChanged_classDiagramDaemon(package,slot,newPackage,oldPackage)
      self.refreshToolGroups()
    end

    @Operation nameChanged_classDiagramDaemon(package,slot,newName,oldName)
      diagram.refreshName()
    end
    
    @Operation associationAdded_classDiagramDaemon(package,slot,association)
      self.associationAdded(association)
    end
    
    @Operation associationRemoved_classDiagramDaemon(package,slot,association)
      self.associationRemoved(association)
    end

    @Operation associationInstanceAdded_classDiagramDaemon(package,slot,associationInstance)
      self.associationInstanceAdded(associationInstance)
    end
    
    @Operation associationInstanceRemoved_classDiagramDaemon(package,slot,associationInstance)
      self.associationInstanceRemoved(associationInstance)
    end

    @Operation intrinsicAssociationConstraintAdded_classDiagramDaemon(package,slot,intrinsicAssociationConstraint)
      self.intrinsicAssociationConstraintAdded(intrinsicAssociationConstraint)
    end
    
    @Operation intrinsicAssociationConstraintRemoved_classDiagramDaemon(package,slot,intrinsicAssociationConstraint)
      self.intrinsicAssociationConstraintRemoved(intrinsicAssociationConstraint)
    end
                                    
    @Operation classAdded_classDiagramDaemon(package,slot,class)
	  if not self.eventFiltered("class added")
      then self.classAdded(class);
           self.generateEdges()
      end
    end
    
    @Operation classRemoved_classDiagramDaemon(package,slot,class)
      self.classRemoved(class)
    end
    
    @Operation checkPackageDaemons()
      @SlotValueChanged multi once   PackageXClassDiagram::nameChanged_classDiagramDaemon(package,"name")                end;
      // @SlotValueChanged multi once   PackageXClassDiagram::ownerChanged_classDiagramDaemon(package,"owner")           end;
      @SlotValueChanged multi once + PackageXClassDiagram::associationAdded_classDiagramDaemon(package,"associations")   end;
      @SlotValueChanged multi once - PackageXClassDiagram::associationRemoved_classDiagramDaemon(package,"associations") end;
      @SlotValueChanged multi once + PackageXClassDiagram::classAdded_classDiagramDaemon(package,"classes")              end;
      @SlotValueChanged multi once - PackageXClassDiagram::classRemoved_classDiagramDaemon(package,"classes")            end;
      @SlotValueChanged multi once + PackageXClassDiagram::packageAdded_classDiagramDaemon(package,"packages")           end;
      @SlotValueChanged multi once - PackageXClassDiagram::packageRemoved_classDiagramDaemon(package,"packages")         end;
      @SlotValueChanged multi once + PackageXClassDiagram::parentAdded_classDiagramDaemon(package,"parents")             end;
      @SlotValueChanged multi once - PackageXClassDiagram::parentRemoved_classDiagramDaemon(package,"parents")           end;
      @SlotValueChanged multi once + PackageXClassDiagram::operationAdded_classDiagramDaemon(package,"operations")       end;
      @SlotValueChanged multi once - PackageXClassDiagram::operationRemoved_classDiagramDaemon(package,"operations")     end;
      @SlotValueChanged multi once + PackageXClassDiagram::importAdded_classDiagramDaemon(package,"imports")             end;
      @SlotValueChanged multi once - PackageXClassDiagram::importRemoved_classDiagramDaemon(package,"imports")           end;
      @SlotValueChanged multi once   PackageXClassDiagram::metaPackageChanged_classDiagramDaemon(package,"metaPackage")  end;

      @SlotValueChanged multi once + PackageXClassDiagram::associationInstanceAdded_classDiagramDaemon(package,"associationInstances")   end;
      @SlotValueChanged multi once - PackageXClassDiagram::associationInstanceRemoved_classDiagramDaemon(package,"associationInstances") end;
	  @SlotValueChanged multi once + PackageXClassDiagram::intrinsicAssociationConstraintAdded_classDiagramDaemon(package,"intrinsicAssociationConstraints")   end;
      @SlotValueChanged multi once - PackageXClassDiagram::intrinsicAssociationConstraintRemoved_classDiagramDaemon(package,"intrinsicAssociationConstraints") end
                  
      // self.addContentsChangedDaemon() // to monitor added and removed named elements not covered by above, and associations
    end
    
    @Operation classAdded(class)
      if not classMaps->exists(map | map.class = class) and
         not elementMaps->exists(map | map.element = class)
      then
        self.addClass(class)
      end
    end
    
    @Operation classDropped(class)
    
      // Since a dropped class can be dropped multiple times it is not
      // necessary to guard the addition of a newly dropped class
      
      self.addClass(class)
    end
    
   @Operation classNodeAdded(classNode)
   
      // Create a class based on the newly added node on the diagram.
      // The class node will have a default name therefore we must
      // generate a new name that does not conflict with a class
      // in the current package. The class node contains the metaclass
      // as a path.
      
      if not classMaps->exists(map | map.node = classNode)
      then
        let 
          name = self.newClassName();
          metaClass = classNode.typePath->ref(Seq{Root,XCore}) then
          class = metaClass[name=Symbol(name.toString())] then
          mapClass = (xmf.registry().getExtensionPoint("com.ceteva.diagrams.class.map").find(metaClass).values->head)() then
          map = mapClass(class,classNode,self)
        in 
          classNode.setName(name);
          self.add(map);
          self.package.add(class);
          self.elementChanged();
          if classNode.showOperations then
            map.generateOperations()
          end;
          if classNode.showMetaslots then
            map.generateMetaslots()
          end;
          if classNode.showOperationValues then
            map.generateOperationValues()
          end
        end
      end
    end
    
    @Operation classNodeAddedDaemon(diagram,slot,classNode)
      self.classNodeAdded(classNode)
    end
    
    /*@Operation classNodeRemovedDaemon(diagram,slot,classNode)
      self.classNodeRemoved(classNode)
    end*/
    
    @Operation classRemoved(class)
      @For map in classMaps
        when map.class = class
        do
          map.node.delete();
          self.remove(map)
      end;
      
      if class.isMetaClass() 
        andthen class.level > 0 
          then diagram.removeAnyHandler(class.name,true)
      end;
      
      // Elements (dropped using other) are stored in the classes
      // slot, check to see if it is an element rather than a class
      // that has been removed
      
      @For map in elementMaps
        when map.element = class
        do
          map.node.delete();
          self.remove(map)
      end
    end
    
    /*@Operation classNodeRemoved(classNode)
      
      // no longer used, node is now removed by removing the
      // model element first
      
      self
    end*/
    
    @Operation classInheritanceMaps():Set(ClassXInheritanceEdge)
      inheritanceMaps->select(m | m.isKindOf(ClassXInheritanceEdge))
    end
    
    @Operation commandInterpreter()
      if owner <> null
      then owner.commandInterpreter()
      else
        xmf.findClient(DiagramClient).commandInterpreter
      end
    end
    
    @Operation containerSourceChanged(containerMap,newContainerNode)
      @Find(map,self.nodeMaps())
        when map.node = newContainerNode
        do containerMap.setContainer(map.element())
      end
    end
    
    @Operation containerTargetChanged(containerMap,newContainedNode)
      @Find(map,self.nodeMaps())
        when map.node = newContainedNode
        do containerMap.setContained(map.element())
      end
    end
    
    @Operation containsEdgeAdded(containsEdge)
      if self.validEdge(containsEdge)
      then
        if not containerMaps->exists(map | map.edge = containsEdge)
        then
          @Find(containerMap,self.nodeMaps())
            when containerMap.node = containsEdge.sourceNode()
            do @Find(containedMap,self.nodeMaps())
                when containedMap.node = containsEdge.targetNode()
                do
                  let containsMap = ContainerXContainsEdge(containerMap.element(),containedMap.element(),containsEdge)
                  in
                    self.add(containsMap);
                    containsMap.selectSlot()
                  end
             end
          end
        end
      end
    end
    
    @Operation containsEdgeRemoved(containsEdge)
      @Find(containsMap,containerMaps)
        when containsMap.edge = containsEdge
        do self.remove(containsMap);
           containsMap.removeValue()
      end
    end
    
    @Operation containsEdgeAddedDaemon(diagram,slot,containsEdge)
      self.containsEdgeAdded(containsEdge)
    end
    
    @Operation containsEdgeRemovedDaemon(diagram,slot,containsEdge)
      self.containsEdgeRemoved(containsEdge)
    end
    
    @Operation deleteImportTray(package)
      diagram.deleteGroupNamed(package.name.toString())
    end

    @Operation handleDiagramCloseEvent(diagram)
      if package.owner = null
      then
        owner.remove(self)
      else
        super(diagram)
      end
    end

    @Operation handleDiagramRenewEvent(diagram)
      self.refreshToolGroups()
    end
    
    @Operation defineActions()
      // Any default actions that require access to the mapping.
      // Remember self will be the diagram in any handler.
      let map = self then
          delete() = 
            @WithoutRendering(self)
              @For m in map.inheritanceMaps when m.edge.selected do
                m.child.removeParent(m.parent)
              end; 
              @For m in map.attributeMaps when m.edge.selected do
                m.attribute.deleteRecursive()
              end; 
              @For m in map.associationMaps when m.edge.selected do
                m.association.deleteRecursive()
              end;
              @For m in map.classMaps when m.node.selected do
                m.class.deleteRecursive()
              end;
              @For m in map.packageMaps when m.node.selected do
               m.package.deleteRecursive()
              end
            end;
          manageParents() = map.package.setParents_client();
          manageImports() = map.package.setImports_client()
      in diagram.defineActionHandler("Actions","Delete Selected","delete","Tools/Delete.gif",delete);
         diagram.defineActionHandler("Actions","Manage Parents","parents","XCore/Generalization.gif",manageParents);
         diagram.defineActionHandler("Actions","Manage Imports","imports","XCore/Dependency.gif",manageImports);
         // User defined operations with the named properties below are transformed into actions.
         // The operation properties define the group, label and icon. These default as shown...
         @For handler in package.allOperations() when handler.getProperty("diagramAction",false) do
           self.actionAdded(handler)
         end
      end
    end
    
    @Operation defineAttributeRegistryContributions(attClass)
      self.ensureDisplayPackage();
      self.defineAttributeTextExtension(attClass);
      self.defineAttributeXTextExtension(attClass)
    end
    
    @Operation defineAttributeTextExtension(attClass)
      let registry      = xmf.registry();
          attTextId     = "com.ceteva.diagrams.attribute.text";
          displays      = Clients::Displays.getElement(package.name);
          attributeText = XCore::Class(attClass.name+"Text") then
          accessor()    = displays.getElement(attClass.name+"Text")
      in attributeText.addParent(AttributeText);
         displays.add(attributeText);
         registry.addContribution(attTextId,ExtensionPoints::Contribution(attClass,[accessor]))
      end
    end
    
    @Operation defineAttributeXTextExtension(attClass)
      let registry       = xmf.registry();
          attXTextId     = "com.ceteva.diagrams.attribute.text.map";
          displays       = Clients::Displays.getElement(package.name);
          attributeXText = XCore::Class(attClass.name+"XText") then
          accessor()     = displays.getElement(attClass.name+"XText")
      in attributeXText.addParent(AttributeXText);
         displays.add(attributeXText);
         registry.addContribution(attXTextId,ExtensionPoints::Contribution(attClass,[accessor]))
      end
    end
    
    @Operation defineMetaClassRegistryContributions(metaClass)
      // When a metaClass is added to the diagram, we add entries into the sub-package
      // called Displays. The user can then navigate to the elements in this package
      // and extend or redefine them...
      self.ensureDisplayPackage();
      self.defineClassNodeExtension(metaClass);
      self.defineClassXNodeExtension(metaClass)
    end
    
    @Operation defineClassNodeExtension(metaClass)
      // An extension point for class node displays. The extension is an operation defined
      // in the registry that receives (x,y) the type path and the diagram and adds an
      // instance of ClassNode to the diagram. By adding a sub-class of ClassNode to the
      // Displays package, the user can override the display elements...
      let registry    = xmf.registry();
          classNodeId = "com.ceteva.diagrams.class.node";
          displays    = Clients::Displays.getElement(package.name);
          classNode   = XCore::Class(metaClass.name+"Node") then
          createClassNode(x,y,typePath,diagram) = 
            @WithoutRendering(diagram)
              let class = displays.getElement(metaClass.name+"Node") then
                  node = class("A Class","",false,typePath,x,y,diagram.showAttributes(),diagram.showOperations(),true)
              in node.new(diagram,true);
                 diagram.addNode(node);
                 node
              end
            end
      in classNode.addParent(ClassNode);
         displays.add(classNode);
         registry.addContribution(classNodeId,ExtensionPoints::Contribution(metaClass,[createClassNode]))
      end
    end
    
    @Operation defineClassXNodeExtension(metaClass)
      // The registry contains a sub-class of ClassXNode that will be used to manage the
      // association between an instance of ClassNode and an instance of metaClass. By 
      // adding the sub-class of ClassXNode to Displays, the user can override the mapping...
      let registry   = xmf.registry();
          classMapId = "com.ceteva.diagrams.class.map";
          displays   = Clients::Displays.getElement(package.name);
          classXNode = XCore::Class(metaClass.name+"XNode") then
          accessor() = displays.getElement(metaClass.name+"XNode")
      in classXNode.addParent(ClassXNode);
         displays.add(classXNode);
         registry.addContribution(classMapId,ExtensionPoints::Contribution(metaClass,[accessor]))
      end
    end
    
    @Operation defineToggles()
      // Any default toggles that require access to the mapping...
      null
    end
    
    @Operation deleteMetaTray()
      diagram.deleteGroupNamed("Meta Elements")
    end

    @Operation dependencyEdgeAddedDaemon(diagram,slot,dependencyEdge)
      self.dependencyEdgeAdded(dependencyEdge)
    end
    
    @Operation delegationEdgeAddedDaemon(diagram,slot,delegationEdge)
      self.delegationEdgeAdded(delegationEdge)
    end
    
    @Operation dependencyEdgeAdded(dependencyEdge)
      if self.validEdge(dependencyEdge)
      then
        if not dependencyMaps->exists(map | map.edge = dependencyEdge)
        then
          @Find(sourceMap,self.nodeMaps())
            when sourceMap.node = dependencyEdge.sourceNode()
            do @Find(targetMap,self.nodeMaps())
                 when targetMap.node = dependencyEdge.targetNode()
                  do let source = sourceMap.element();
                         target = targetMap.element();
                         metaClass = dependencyEdge.typePath->ref(Seq{Root,XCore}) then
                         dependency = metaClass(source,target)
                     in  self.add(DependencyXDependencyEdge(dependency,dependencyEdge));
                         dependency.attach()
                     end
               end
          end
        end
      end
    end
    
    @Operation delegationEdgeAdded(delegationEdge)
      if self.validEdge(delegationEdge)
      then
        if not delegationMaps->exists(map | map.edge = delegationEdge)
        then
          @Find(sourceMap,self.nodeMaps())
            when sourceMap.node = delegationEdge.sourceNode()
            do @Find(targetMap,self.nodeMaps())
              when targetMap.node = delegationEdge.targetNode()
              do let source = sourceMap.element();
                target = targetMap.element()
              in self.add(DelegationXDelegationEdge(source,target,delegationEdge))
                //;delegation.attach()
                ;self.cleanUpDelegations(source,target)
              end
            end
          end
        end
      end
    end
    
    @Operation cleanUpDelegations(source,target)      
      @Find(delegationMap,delegationMaps)
        when delegationMap.roleClass = source and delegationMap.roleFillerClass <> target
        do self.remove(delegationMap);
          delegationMap.edge.delete();
          delegationMap.owner.remove(delegationMap)
      end
    end
    
    @Operation dependencyEdgeRemoved(dependencyEdge)
      @Find(dependencyMap,dependencyMaps)
        when dependencyMap.edge = dependencyEdge
        do self.remove(dependencyMap);
           dependencyMap.detach();
           dependencyMap.dispose()
      end
    end
    
    @Operation dependencyEdgeRemovedDaemon(diagram,slot,dependencyEdge)
      self.dependencyEdgeRemoved(dependencyEdge)
    end
      
    @Operation delegationEdgeRemovedDaemon(diagram,slot,delegationEdge)
      self.delegationEdgeRemoved(delegationEdge)
    end
    
    
    @Operation delegationEdgeRemoved(delegationEdge)
      @Find(delegationMap,delegationMaps)
        when delegationMap.edge = delegationEdge
        do self.remove(delegationMap);
           delegationMap.dispose()
      end
    end
    
            @Operation dependencySourceChanged(dependency)
      // We do nothing for this since we don't expect
      // a dependency to be directly modified. Update
      // this in line with other model element changes.
      self
    end
    
    @Operation dependencyEdgeSourceChanged(map,node)
      @Find(classMap,self.nodeMaps())
        when classMap.node = node
        do map.dependency.detach();
           map.dependency.setSource(classMap.element());
           map.dependency.attach() 
      end   
    end
    
    @Operation dependencyEdgeTargetChanged(map,node)
      @Find(classMap,self.nodeMaps())
        when classMap.node = node
        do map.dependency.detach();
           map.dependency.setTarget(classMap.element());
           map.dependency.attach() 
      end   
    end
    
    @Operation dependencyTargetChanged(dependency)
      // We do nothing for this since we don't expect
      // a dependency to be directly modified. Update
      // this in line with other model element changes.
      self
    end
    
    @Operation debug(debug)
      owner.debug(debug)
    end

    @Operation dropIfNecessary(element)
      if not self.nodeExistsFor(element)
      then
        self.addDropped(element)
      end
    end

    @Operation dropOtherNode(x,y,C)
    
      // Specifies the set of classes to offer via the menu for a
      // dropped node at position (x,y).
      
      let classes = C->asSeq->qsort(@Operation(c1,c2) c1.name < c2.name end) then
          names = classes.name->map("toString") then
          choice = xmf.select("General Element","Select a type for the new node.",names,null,null)
      in if choice <> null
         then 
           let class = classes->at(names->indexOf(choice)) then
               instance = try class() catch(exception) try class.new() catch(exception) null end end;
               message = "Do you want to add this element to the contents of package " + package.name() + "?. " + 
               "If you choose no, it will only be deletable if you add it to the contents slot of another object using the Slot Value button." then
               addToPackage =
                 if instance.isReallyKindOf(Contained)
                 then xmf.question(message)
                 else false
                 end
           in
              if instance <> null
              then 
                if instance.isKindOf(NamedElement)
                then instance.setName(package.newName(class.name.toString()))
                end;
                self.elementAdded(instance,x,y);
                if addToPackage
                then package.add(instance)
                end
              end
           end
         end
      end
    end

    @Operation duplicateInheritanceEdge(edge,childMap,parentMap)
      inheritanceMaps->exists(m | m.child = childMap.element() and m.parent = parentMap.element()
        and m.edge <> edge)
    end
    
    @Operation elementAdded(element)
      self.elementAdded(element,0,0)
    end

    @Operation elementAdded(element,x,y)
      if element <> null and element.isKindOf(Object)
      then self.objectAdded(element,x,y)
      else self.nonObjectAdded(element,x,y)
      end
    end
    
    @Operation elementChanged()
      super();
      "PackageXClassDiagrams::elementChanged".println()
    end
    
    @Operation ensureDisplayPackage()
    
      // The Displays package is used to contain definitions for the
      // display of elements. It is intended to contain defaults that
      // can be extended by the user...
      
      if not Clients::Displays.hasElement(package.name)
      then Clients::Displays.add(Package(package.name))
      end
    end
    
    @Operation objectAdded(element,x,y)
      
      // An object displays its simply-typed slot-values...
          
      let node = ObjectNode(element.of(),x,y) then
          map = ObjectXNode(element,node,self) 
      in @WithoutRendering(self.diagram)
           self.add(map);
           diagram.add(node);
           node.new(diagram);
           map.createSlotText();
           map.elementChanged()
         end
      end
    end
    
    @Operation nonObjectAdded(element,x,y)
      
      // A general element whose type is unknown to us is added to
      // the diagram. Use a generic representation for the element.
          
      let label = @TypeCase(element)
                    NamedElement do element.name().toString() end
                  else element.toString()
                  end then
          node = ElementNode(element.of().pathSeq(),label,x,y) then
          map = @TypeCase(element)
                   NamedElement do NamedElementXNode(element,node) end
                else ElementXNode(element,node) 
                end
      in @WithoutRendering(self.diagram)
           self.add(map);
           diagram.add(node);
           node.new(diagram)
         end
      end
    end

    @Operation elementNodeRemoved(elementNode)
      @Find(map,elementMaps)
        when map.node = elementNode
        do
          self.remove(map);
          self.package.remove(map.element);
          self.diagram.remove(map.node)
      end
    end

    @Operation elementNodeRemovedDaemon(diagram,slot,elementNode)
      self.elementNodeRemoved(elementNode)
    end

    @Operation elementRemoved(element)
      @Find(map,elementMaps)
        when map.element = element
        do self.remove(map);
           map.node.delete()
      end
    end

    @Operation generateDiagram()
      self.toolGroups();
      super();
      diagram.cardLayout(12,200,10,20)
    end
    
    @Operation generateNodes()
      if self.total()
      then
        @For class in package.classes do
          self.classAdded(class);
          @For attribute in class.attributes do
            let type = attribute.underlyingType()
            in if not type.isKindOf(DataType) andthen 
                  not package.classes->includes(type)
               then self.add(type)
               end
            end
          end;
          @For parent in class.parents do
            if not class.defaultParents()->includes(parent) andthen
               not package.classes->includes(parent)
             then self.add(parent)
           end
          end
        end;
        @For package in package.packages do
          self.packageAdded(package);
          @For parent in package.parents do
            if parent.isReallyKindOf(XCore::Package)
            then self.add(parent)
            end
          end
        end
      end
    end

    @Operation generateEdges()
      let classes = self.abstractClassMaps()->collect(map | map.element())
      in
        @For class in classes do
          @For parent in class.parents do
            self.parentAdded(class,parent)
          end;
          @For attribute in class.attributes do
            self.attributeAdded(attribute)
          end
        end
      end;
      @For association in package.contentsOf(Associations::Association)->excluding(null) do
        self.associationAdded(association)
      end;
	  @For associationInstance in package.contentsOf(Associations::AssociationInstance)->excluding(null) do
        self.associationInstanceAdded(associationInstance)
      end;
      @For intrinsicAssociationConstraint in package.contentsOf(Associations::IntrinsicAssociationConstraint)->excluding(null) do
        self.intrinsicAssociationConstraintAdded(intrinsicAssociationConstraint)
      end
    end

    @Operation hotLoaded()
      self.registerWithDiagram(diagram);
      xmf.diagramManager().addDiagram(package,diagram);
      self.checkDaemons();
      self.setGlobalMenu(diagram,Set{package.of(),diagram.of()},false)
    end

    @Operation importMenu()
    
      // Offer all the contents that this package imports.
      
      let importedContents = package.importedContents() then
          sortedImports = importedContents->asSeq.sortNamedElements_CaseIndependent()
      in
        let element = xmf.select("Import","Select a classifier",sortedImports,null,null)
        in
          if element <> null
          then
            self.addDropped(element)
          end
        end
      end

    end
    
    @Operation importAdded_classDiagramDaemon(obj,slot,package)
      if not self.eventFiltered("import added")
      then self.importAdded(package)
      end
    end
    
    @Operation importRemoved_classDiagramDaemon(obj,slot,package)
      self.importRemoved(package)
    end
    
    @Operation importAdded(package)
      self.addImportTray(package)
    end
    
    @Operation importRemoved(package)
      self.deleteImportTray(package)
    end
    
    @Operation inheritanceEdgeAddedDaemon(diagram,slot,inheritanceEdge)
      self.inheritanceEdgeAdded(inheritanceEdge)
    end
    
    @Operation inheritanceEdgeRemovedDaemon(diagram,slot,inheritanceEdge)
      self.inheritanceEdgeRemoved(inheritanceEdge)
    end
    
    @Operation instantiateClassHandler(c,p,m)
    
      // Create a handler for a new button where the element being instantiated is
      // not a meta-class. A few checks are used to see ifwe can meaningfully add
      // the new object to the package...
      
      @Operation(x,y) 
        let instance = try c() catch(exception) try c.new() catch(exception) null end end then
            message = "Do you want to add this element to the contents of package " + p.name() + "?" then
            addToPackage =
            if instance.isReallyKindOf(Contained)
            then xmf.question(message)
            else false
            end
        in if instance <> null
           then 
             if instance.isKindOf(NamedElement)
             then instance.setName(p.newName(c.name().toString()))
             end;
             m.elementAdded(instance,x,y);
             if addToPackage
             then p.add(instance)
             end;
             self.elementChanged()
           end
        end
      end
    end
    
    @Operation dropMenu()
    
      self
      // Drop any classifier into a class diagram by declaring its path.
      // *** to be implemented ***
      
    end

    @Operation inheritMenu()
    
      // Offer all the elements that the package inherits...
      
      let I = package.allContents() - package.contents() then
          I = I->excluding(null) then
          I = I->asSeq->qsort(@Operation(n1,n2) n1.name < n2.name end) then
          element = xmf.select("Inherit","Select a classifier",I,null,null)
      in if element <> null
         then self.add(element)
         end
      end
      
    end

    @Operation inheritanceEdgeAdded(inheritanceEdge)
      self.inheritanceEdgeAdded(inheritanceEdge,classMaps,ClassXInheritanceEdge);
      self.inheritanceEdgeAdded(inheritanceEdge,packageMaps,PackageXInheritanceEdge)
    end

    @Operation inheritanceEdgeAdded(inheritanceEdge,maps,mapClass)
      if self.validEdge(inheritanceEdge)
      then
        @Find(childMap,maps)
          when childMap.node = inheritanceEdge.sourceNode()
          do @Find(parentMap,maps)
               when parentMap.node = inheritanceEdge.targetNode()
               do
                 if self.duplicateInheritanceEdge(inheritanceEdge,childMap,parentMap)
                 then
                   inheritanceEdge.delete()
                 else
                   if not inheritanceMaps->exists(map | map.edge = inheritanceEdge)
                   then
                     let 
                       child = childMap.element();
                       parent = parentMap.element() then
                       inheritanceMap = mapClass(child,parent,inheritanceEdge)
      			     in 
      			       self.add(inheritanceMap);
        			   child.addParent(parent);
                       self.elementChanged()
      			     end
      			   end
                 end
             end
        end
      end
    end

    @Operation inheritanceEdgeRemoved(inheritanceEdge)
      @Find(inheritanceMap,inheritanceMaps)
        when inheritanceMap.edge = inheritanceEdge
        do self.remove(inheritanceMap);
           inheritanceMap.child.removeParent(inheritanceMap.parent)
      end
    end

    @Operation inheritanceSourceChanged(inheritanceMap,newNode)
      self.inheritanceSourceChanged(inheritanceMap,newNode,classMaps);
      self.inheritanceSourceChanged(inheritanceMap,newNode,packageMaps)
    end
    
    @Operation inheritanceSourceChanged(inheritanceMap,newNode,maps)
      @Find(map,maps)
        when map.node = newNode
        do let oldChild = inheritanceMap.child;
               newChild = map.element();
               parent = inheritanceMap.parent
           in  oldChild.removeParent(parent);
               if newChild.of() = parent.of()
               then
                 newChild.addParent(parent);
                 self.elementChanged()
               end
           end
        else
          inheritanceMap.edge.delete()
      end
    end

    @Operation inheritanceTargetChanged(inheritanceMap,newNode)
      self.inheritanceTargetChanged(inheritanceMap,newNode,classMaps);
      self.inheritanceTargetChanged(inheritanceMap,newNode,packageMaps)
    end
    
    @Operation inheritanceTargetChanged(inheritanceMap,newNode,maps)
      @Find(map,maps)
        when map.node = newNode
        do let child = inheritanceMap.child;
               oldParent = inheritanceMap.parent;
               newParent = map.element()
           in  child.removeParent(oldParent);
               if newParent.of() = child.of()
               then
                 child.addParent(newParent);
                 self.elementChanged()
               end
           end
        else
          inheritanceMap.edge.delete()
      end
    end

    @Operation newAttributeName(class):String
      let i = 0
      in @While class.allAttributes()->exists(a | a.name.toString() = ("att" + i.toString())) do
           i := i + 1
         end;
         "att" + i.toString()
      end
    end
    
    @Operation newClassName():String
      let i = 0
      in @While package.classes->exists(c | c.name.toString() = ("Class" + i.toString())) do
           i := i + 1
         end;
         "Class" + i.toString()
      end
    end
    
    @Operation newPackageName():String
      let i = 0
      in @While package.packages->exists(c | c.name.toString() = ("Package" + i.toString())) do
           i := i + 1
         end;
         "Package" + i.toString()
      end
    end

    @Operation nodeExistsFor(element)
      if self.nodeMaps()->exists(map | map.element() = element)
      then true
      else false
      end
    end

    @Operation nodeMaps()
      classMaps + packageMaps + elementMaps + self.docMaps
    end
    
    @Operation noteNodeAdded(element,slot,noteNode)
      if not self.docMaps->exists(map | map.node = noteNode)
      then
        let 
          doc = Doc(noteNode.text.text) then
          map = DocXNote(doc,noteNode,self)
        in
          self.add(map)
        end
      end
    end
    
    @Operation noteNodeRemoved(element,slot,noteNode)
      @Find(map,self.docMaps)
        when map.node = noteNode
        do
           self.remove(map)
      end
    end  
    
    @Operation operationAdded(operation)
      if operation.getProperty("diagramAction",false)
      then self.actionAdded(operation)
      end
    end
    
    @Operation operationRemoved(operation)
      if operation.getProperty("diagramAction",false)
      then self.actionRemoved(operation)
      end
    end 
    
    @Operation operationAdded_classDiagramDaemon(obj,slot,operation)
      if not self.eventFiltered("operation added")
      then self.operationAdded(operation)
      end
    end
    
    @Operation operationRemoved_classDiagramDaemon(obj,slot,operation)
      self.operationRemoved(operation)
    end
    
    @Operation packageAdded(package)
      if not packageMaps->exists(map | map.package = package) and
         not elementMaps->exists(map | map.element = package)
      then
        self.addPackage(package)
      end
    end
    
    @Operation packageDropped(package)
    
      // Since a dropped package can be dropped multiple times it is not
      // necessary to guard the addition of a newly dropped package
      
      self.addPackage(package)
    end
    
    @Operation packageInheritanceMaps():Set(ClassXInheritanceEdge)
      inheritanceMaps->select(m | m.isKindOf(PackageXInheritanceEdge))
    end
    
    @Operation packageNodeAdded(packageNode)
      if not packageMaps->exists(map | map.node = packageNode)
      then
        let 
          name = self.newPackageName() then
          metaClass = packageNode.typePath->ref(Seq{Root,XCore}) then
          package = metaClass(name) then
          map = PackageXNode(package,packageNode,self)
        in
          packageNode.setName(name);
          self.add(map);
          self.package.add(package);
          self.elementChanged()
        end
      end
    end
    
    @Operation packageNodeAddedDaemon(diagram,slot,packageNode)
      self.packageNodeAdded(packageNode)
    end
    
    @Operation packageNodeRemovedDaemon(diagram,slot,packageNode)
      self.packageNodeRemoved(packageNode)
    end
    
    @Operation packageRemoved(package)
      @For map in packageMaps
        when map.package = package
        do 
          self.remove(map);
          map.node.delete()
      end
    end
    
    @Operation packageNodeRemoved(packageNode)
      @Find(map,packageMaps)
        when map.node = packageNode
        do self.remove(map);
           package.remove(map.package);
           self.elementChanged()
      end
    end
    
    @Operation packageAdded_classDiagramDaemon(obj,slot,package)
      if not self.eventFiltered("package added")
      then self.packageAdded(package)
      end
    end
    
    @Operation packageRemoved_classDiagramDaemon(obj,slot,package)
      self.packageRemoved(package)
    end
    
    @Operation parentAdded(parent)
      // Called when a parent has been added to the package...
      self.addMetaTray()
    end
    
    @Operation parentRemoved(parent)
      // Called when a parent has been removed from the package...
      if not package.isMetaPackage()
      then self.deleteMetaTray()
      end
    end
    
    @Operation parentAdded_classDiagramDaemon(obj,slot,parent)
      if not self.eventFiltered("parent added")
      then self.parentAdded(parent)
      end
    end
    
    @Operation parentRemoved_classDiagramDaemon(obj,slot,parent)
      self.parentRemoved(parent)
    end
    
    @Operation parentAdded(child,parent)
      @TypeCase(child)
        XCore::Package do
          self.parentAdded(child,parent,packageMaps,PackageXInheritanceEdge)
        end
        XCore::Class do
          self.parentAdded(child,parent,classMaps,ClassXInheritanceEdge)
        end
      end
    end

    @Operation parentAdded(child,parent,maps,mapClass)
      if not inheritanceMaps->exists(map | map.child = child and map.parent = parent)
      then
        @Find(childMap,maps)
          when childMap.element() = child
          do @Find(parentMap,maps)
               when parentMap.element() = parent
               do
                 let 
                   edge = diagram.makeInheritance(childMap.node,parentMap.node) then
                   map = mapClass(child,parent,edge)
                 in
                   self.add(map);
                   self.diagram.add(edge)
      			 end
             end
        end
      end
    end

    @Operation parentRemoved(child,parent)
      @Find(inheritanceMap,inheritanceMaps)
        when inheritanceMap.child = child and inheritanceMap.parent = parent
        do 
          self.remove(inheritanceMap);
          inheritanceMap.edge.delete()
      end
    end

    @Operation refreshToolGroups()
      diagram.commandInterpreter().clearToolPaletteCommand(diagram);
      diagram.defineToolGroups();
      self.toolGroups()
    end

    @Operation remove(element)
      @TypeCase(element)
        AssociationXAssociationEdge do
          self.deleteFromAssociationMaps(element);
          element.removeDaemons()
        end 
        AssociationInstanceXAssociationInstanceEdge do
          self.deleteFromAssociationInstanceMaps(element);
          element.removeDaemons()
        end
        IntrinsicAssociationConstraintXIntrinsicAssociationConstraintEdge do
          self.deleteFromIntrinsicAssociationConstraintMaps(element);
          element.removeDaemons()
        end 
        ClassXNode do
          self.deleteFromClassMaps(element);
          element.removeDaemons()
        end
        ClassifierXInheritanceEdge do
          self.deleteFromInheritanceMaps(element);
          element.removeDaemons()
        end
        AttributeXAttributeEdge do
          self.deleteFromAttributeMaps(element);
          element.removeDaemons()
        end
        ContainerXContainsEdge do
          self.deleteFromContainerMaps(element);
          element.removeDaemons()
        end
        DependencyXDependencyEdge do
          self.deleteFromDependencyMaps(element);
          element.removeDaemons()
        end
        DelegationXDelegationEdge do
          self.deleteFromDelegationMaps(element);
          element.removeDaemons()
        end
        PackageXNode do
          self.deleteFromPackageMaps(element);
          element.removeDaemons()
        end
        ElementXNode do
          self.deleteFromElementMaps(element);
          element.removeDaemons()
        end
        DocXNote do
          self.deleteFromDocMaps(element);
          element.removeDaemons()
        end        
        else format(stdout,"PackageXClassDiagram::remove: unknown element " + element.toString())
      end
    end

    @Operation removeDaemonCollection(seq:Seq(Element))
      @For element in seq do
        element.removeDaemons()
      end
    end

    @Operation removeDaemons()
      super();
      diagram.removeDaemonsWithTarget(self,true);
      package.removeDaemonsWithTarget(self,true);
      self.removeDaemonCollection(self.classMaps);
      self.removeDaemonCollection(self.packageMaps);
      self.removeDaemonCollection(self.docMaps);
      self.removeDaemonCollection(self.elementMaps);
      self.removeDaemonCollection(self.inheritanceMaps);
      self.removeDaemonCollection(self.attributeMaps);
      self.removeDaemonCollection(self.containerMaps);
      self.removeDaemonCollection(self.dependencyMaps);
      self.removeDaemonCollection(self.associationMaps)
    end

    @Operation renew()
      // Called when the diagram is to be regenerated from existing components
      // such as after it is loaded from a file.
      diagram.renew();
      self.refreshToolGroups()
    end
    
    @Operation save()
    
      // Save the mapping independent of the model elements that it maps.
      // To save the model elements the mapping should be part of a project
      // which contains (references to) both the model element and the
      // mapping.
      
      let file = xmf.saveFile(xmf.projDir(),".dgm")
      in if file <> ""
         then
           xmf.clientManager().setSaving(true);
           let excludedNameSpaces = Root.allContentsOf(XCore::Package)->including(Root)->asSeq;
               out = ElementOutputChannel(GZipOutputChannel(FileOutputChannel(file)))
           in xmf.clientManager().preSave();
              out.write(self,excludedNameSpaces);
              out.close();
              xmf.clientManager().postSave();
              xmf.clientManager().setSaving(false)
           end
         end
      end
              
    end

    @Operation setElementAdded(object,slot,newValue)
      // Called when a monitored object's slot is updated where the type of the
      // slot is a collection. Currently do nothing, but it should mimic the behaviour
      // of SnapshotXSnapshotDiagram.
      object
    end
    
    @Operation setElementRemoved(object,slot,newValue)
      // Called when a monitored object's slot is updated where the type of the
      // slot is a collection. Currently do nothing, but it should mimic the behaviour
      // of SnapshotXSnapshotDiagram.
      object
    end
    
    @Operation slotValueChanged(object,slot,newValue)
      // Called when an object changes value. The simple
      // valued slots in objects handle themselves via
      // ObjectXNode. However this will get called when
      // an edge between objects changes.
      object
    end
    
    @Operation XCoreToolGroups()
      diagram.defineNewHandler("XCore","Attribute (String)",false,"XCore/DataType.gif",PackageXClassDiagram::defaultSimpleAttribute(self,String));
      diagram.defineNewHandler("XCore","Attribute (Integer)",false,"XCore/DataType.gif",PackageXClassDiagram::defaultSimpleAttribute(self,Integer));
      diagram.defineNewHandler("XCore","Attribute (Boolean)",false,"XCore/DataType.gif",PackageXClassDiagram::defaultSimpleAttribute(self,Boolean));
      diagram.defineNewHandler("XCore","Attribute (Float)",false,"XCore/DataType.gif",PackageXClassDiagram::defaultSimpleAttribute(self,Float))
    end
    
    @Operation defaultSimpleAttribute(map:PackageXClassDiagram,type:Classifier)
      @Operation(x,y)
        map.newSimpleAttribute(x,y,type)
      end
    end
    
    @Operation newSimpleAttribute(x,y,type:Classifier)
      @Find(map,classMaps) when map.node.contains(x,y) do
        map.class.add(Attribute(map.class.newName("att"),type))
      end
    end

    @Operation toolGroups()
    
      // Add tool groups for the sub-classes of the key elements
      // on a class diagram. Calculate all the sub-classes of
      // class diagram element classes defined by the meta-package
      // of the package controlled by the diagram. Each sub-class
      // corresponds to a stereotype that creates a standard class
      // diagram component tagged with the << and >> labels.
      
      let languageName = package.metaPackage().name.toString();
      
          // allContents returns a set; iterating over a large set is *very* expensive.
          // The following code has been changed to the equivalent loop with side effects.
          
          //allContents = package.metaPackage().allContents() then
          //classes = 
          //  allContents
          //    ->select(c | c.isKindOf(XCore::Class))
          //    ->excluding(null)
          //    ->reject(c | c.owner() = XCore or c.isAbstract) then
          //dependencyToolGroups = classes->select(c | c.inheritsFrom(XCore::Dependency));
          //classToolGroups = classes->select(c | c.inheritsFrom(XCore::Class) and not c.inheritsFrom(XCore::Package));
          //packageToolGroups = classes->select(c | c.inheritsFrom(XCore::Package));
          //attributeToolGroups = classes->select(c | c.inheritsFrom(XCore::Attribute)) then
          //otherToolGroups = classes - (dependencyToolGroups + classToolGroups + packageToolGroups + attributeToolGroups)
          
          dependencyToolGroups = Seq{};
          classToolGroups = Seq{};
          packageToolGroups = Seq{};
          attributeToolGroups = Seq{};
          otherToolGroups = Seq{}
      in 
         @For e inTableValues package.metaPackage().contents do
           if e.isReallyKindOf(XCore::Class) andthen (e.owner() <> XCore and not e.isAbstract)
           then 
             if e.inheritsFrom(XCore::Dependency)
             then dependencyToolGroups := Seq{e | dependencyToolGroups}
             elseif e.inheritsFrom(XCore::Class) and not e.inheritsFrom(XCore::Package)
             then classToolGroups := Seq{e | classToolGroups}
             elseif e.inheritsFrom(XCore::Package)
             then packageToolGroups := Seq{e | packageToolGroups}
             elseif e.inheritsFrom(XCore::Attribute)
             then attributeToolGroups := Seq{e | attributeToolGroups}
             else otherToolGroups := Seq{e | otherToolGroups}
             end
           end
         end;

         // If the package is a meta-package then we want to allow instances of
         // the meta-classes to be created on the diagram...

         // self.addMetaTray();
         
         // Assume that all class diagrams have an XCore tray and add in the default
         // tools that come with that language...
         
         self.XCoreToolGroups();
      
         // Any toggles that need access to the mapping...
         
         self.defineToggles();
         
         // Any actions that require access to the mapping...
         
         self.defineActions();
     
         // If there are any sub-classes of the standard model elements for a class
         // diagram then we need a stereotypes node group to create them...
      
         if not (dependencyToolGroups->isEmpty and
                 packageToolGroups->isEmpty and 
                 classToolGroups->isEmpty and 
                 attributeToolGroups->isEmpty)
         then diagram.defineToolGroup(languageName)
         end;
         
         self.addImportTrays();

         // Add in a catch all element creator that will offer all model element
         // types in the meta-package via a selection list.
         
         if xmf.preference("EnableMeta")
         then
           diagram.defineNewHandler(
             "XCore",
             "Object",
             false,
             "XCore/Other.gif",
             let 
               p = self.package;
               m = self 
             in
               @Operation(x,y)
                 m.dropOtherNode( x,y,p.metaPackage().allClasses()
                   ->select(c | not c.isAbstract)
                   - Set{// the following cannot be created by raw instantiation
                         // or cannot supported by class diagrams...
                         BasicArray,Bind,Buffer,Classifier,CodeBox,Collection,
                         CompiledOperation,Constructor,Daemon,Doc,Exception,
                         ForeignOperation,InitialisedAttribute,InterpretedOperation,
                         MachineException,Operation,Parameter,Seq,Set,Snapshot } )
               end
             end)
         end;

         // Add in the stereotype creation buttons...
         
         @For c in packageToolGroups do
           let handler = 
                 @Operation(x,y) 
                   self.newPackageNode(x,y,c.pathSeq())
                 end
           in diagram.defineNewHandler(
                languageName,
                c.name.toString(),
                false,
                "XCore/Package.gif",
                handler)
           end
         end;
         @For c in classToolGroups do
           let handler(x,y) = self.newClassNode(x,y,c.pathSeq())
           in diagram.defineNewHandler(
                languageName,
                c.name.toString(),
                false,
                "XCore/Class.gif",
                handler)
           end
         end;
         @For c in attributeToolGroups do
           let handler(sourcePort,targetPort) = self.newAttributeEdge(sourcePort,targetPort,c.pathSeq());
               selfHandler(x,y) = self.newSelfAttributeEdge(x,y,c.pathSeq())
           in diagram.defineNewHandler(
                languageName,
                c.name.toString(),
                true,
                "XCore/Attribute.gif",
                handler);
              diagram.defineNewHandler(
                languageName,
                c.name.toString() + " (self)",
                false,
                "XCore/Attribute.gif",
                handler) 
           end
         end;
         @For c in dependencyToolGroups do
           let handler(sourcePort,targetPort) = self.newDependencyEdgeCommand(sourcePort,targetPort,c.pathSeq())
           in diagram.defineNewHandler(
                languageName,
                c.name.toString(),
                true,
                "XCore/Dependency.gif",
                handler)
           end
         end;
         @For c in otherToolGroups do
           let p = self.package;
               m = self then
               handler = self.instantiateClassHandler(c,p,m)
           in diagram.defineNewHandler(
                languageName,
                c.name.toString(),
                false,
                "XCore/Object.gif",
                handler)
           end
         end
       end
    end

    @Operation element()
      package
    end

    @Operation diagram()
      diagram
    end

    @Operation subMaps()
      self.classMaps +
      self.packageMaps +
      self.docMaps +
      self.elementMaps +
      self.inheritanceMaps +
      self.attributeMaps +
      self.containerMaps +
      self.dependencyMaps +
      self.associationMaps
    end
    
    @Operation setToPartialSyncMode()
      super();
      self.addEventFilter("class added",ElementXDiagram::defaultEventFilterHandler);
      self.addEventFilter("package added",ElementXDiagram::defaultEventFilterHandler)
    end
    
    @Operation setToTotalSyncMode()
      super();
      self.removeEventFilter("class added");
      self.removeEventFilter("package added")
    end

    @Operation missingPackageContents()
      let packageClasses = package.classes;
          packagePackages = package.packages then
          diagramClasses = classMaps->collect(m | m.class)->asSet;
          diagramPackages = packageMaps->collect(m | m.package)->asSet then
          missingClasses = packageClasses - diagramClasses;
          missingPackages = packagePackages - diagramPackages
      in
          missingClasses + missingPackages
      end
    end
    
    @Operation addMissingContents()
      let missingContents = self.missingPackageContents()
      in
        if not missingContents->isEmpty
        then
          let elementSeq = missingContents->asSeq.sortNamedElements_CaseIndependent();
              stringOp = 
                @Operation(element)
                  element.nameString() + " : " + element.of().nameString()
                end then
              elements = xmf.selects("Add Missing Package Contents",
                                     "Select package contents to add to this diagram",
                                     elementSeq,
                                     null,
                                     stringOp)
          in
            if elements <> 0-1
            then
              @For e in elements do
                self.addDropped(e)
              end
            end
          end
        else
          xmf.message("All package contents are already shown in the diagram.")
        end
      end
    end

    @Operation handleDiagramEvent(diagram,event)
      super(diagram,event);
      let eventType = event->at(0)
      in
        @Case eventType of
          "add missing contents" do self.addMissingContents() end
        else self
        end
      end
    end
    
    @Operation validEdge(edge)
      let
        type = edge.of(); 
        source = edge.source.owner;
        target = edge.target.owner
      in
        @Case type of
          [ContainsEdge] do
            if source.isKindOf(NoteNode) or target.isKindOf(NoteNode)
            then
              edge.delete();
              false
            else
              true
            end
          end
          [AssociationEdge] do
            if source.isKindOf(NoteNode) or target.isKindOf(NoteNode)
            then
              edge.delete();
              false
            else
              true
            end
          end
          else true
        end
      end
    end
    
    @Operation updateToolGroup(group)
    	false // This Operation is defined in the Multilevel Add-On, but used in the main program. It has not funtion then anyway.
    end
    
  end)
Local(1): 'textChanged'
Local(2): Seq{660,parserImport XOCL;
parserImport XMap; 

import Clients;
import Diagrams;
import DiagramsMapping;
import ClassDiagrams;
import ClassMapping;
import Menus;
import IO;

context ClassMapping

  @Class PackageXClassDiagram extends ElementXDiagram
  
    @Attribute package          : Package                         (?)   end
    @Attribute diagram          : ClassDiagram                    (?)   end
    @Attribute classMaps        : Seq(ClassXNode)                 (+,-) end
    @Attribute packageMaps      : Seq(PackageXNode)               (+,-) end
    @Attribute docMaps          : Seq(DocXNote)                   (+,-) end
    @Attribute elementMaps      : Seq(ElementXNode)               (+,-) end
    @Attribute inheritanceMaps  : Seq(ClassifierXInheritanceEdge) (+,-) end
    @Attribute delegationMaps   : Seq(DelegationXDelegationEdge)  (+,-) end
    @Attribute attributeMaps    : Seq(AttributeXAttributeEdge)    (+,-) end
    @Attribute containerMaps    : Seq(ContainerXContainsEdge)     (+,-) end
    @Attribute dependencyMaps   : Seq(DependencyXDependencyEdge)  (+,-) end
    @Attribute associationMaps  : Seq(AssociationXAssociationEdge)(+,-) end
    @Attribute associationInstanceMaps  : Seq(AssociationInstanceXAssociationInstanceEdge)(+,-) end
    @Attribute intrinsicAssociationConstraintMaps  : Seq(IntrinsicAssociationConstraintXIntrinsicAssociationConstraintEdge)(+,-) end
    
    @Constructor(package,diagram,owner)
      self.init(Seq{package,diagram})
    end
    
    @Constructor(package,diagram) !
    
      // This assumes that we are starting with a package
      // and generating the diagram.
      
      diagram.setOwner(self);
      self.setHotLoad(true);
      self.registerWithDiagram(diagram);
      self.checkDaemons();
      self.setGlobalMenu(diagram,Set{Package,diagram.of()})
    end

    //@Constructor(package,diagram,classMaps) end
    
    @Operation abstractClassMaps()
      classMaps + packageMaps
    end
    
    @Operation actionAdded(handler)
      // Add the action to the appropriate group in the palette...
      let name = handler.getProperty("actionName",handler.name.toString());
          icon = handler.getProperty("actionIcon","Tools/Activity.gif");
          group = handler.getProperty("actionGroup","Actions")
      in diagram.defineToolGroup(group);
         diagram.defineActionHandler(group,name,name,icon,handler)
      end
    end
    
    @Operation actionRemoved(handler)
      "PackageXClassDiagram::actionRemoved not implemented".println()
    end
    
    @Operation add(element)
      @TypeCase(element)
        AssociationXAssociationEdge do
          self.addAssociationMap(element)
        end
        IntrinsicAssociationConstraintXIntrinsicAssociationConstraintEdge do
          self.addIntrinsicAssociationConstraintMap(element)
        end        
        AssociationInstanceXAssociationInstanceEdge do
          self.addAssociationInstanceMap(element)
        end
        AttributeXAttributeEdge do
          self.addAttributeMap(element)
        end
        ClassifierXInheritanceEdge do
          self.addInheritanceMap(element)
        end
        DelegationXDelegationEdge do
          self.addDelegationMap(element)
        end
        DependencyXDependencyEdge do
          self.addDependencyMap(element)
        end
        ClassXNode do 
          self.addClassMap(element)
        end
        ContainerXContainsEdge do
          self.addContainerMap(element) 
        end
        ElementXNode do 
          self.addElementMap(element)
        end
        Associations::Association do
          self.associationAdded(element)
        end
        XCore::Package do
          self.packageAdded(element)
        end
        XCore::Class do
          self.classAdded(element)
        end
        PackageXNode do
          self.addPackageMap(element)
        end
        DocXNote do
          self.addDocMap(element)
        end
        else
          self.elementAdded(element)
        //else format(stdout,"PackageXClassDiagram::add: unknown element " + element.toString())
      end
    end
    
    @Operation addCreationButton(class)
    
      // Add a palette creation button for the class. Take appropriate action
      // depending on the type of the class. In addition, if the class is a meta-class
      // then add an extension point for displaying instances of the class...
      
      let className = class.name.toString();
          groupNames = diagram.getGroupNames() then
          groupName = xmf.select("Select Group","Select a group for the button",groupNames,"",@Operation(x) x end);
          metaHandler(x,y) = self.newClassNode(x,y,class.pathSeq());
          classHandler = self.instantiateClassHandler(class,package,self);
          attHandler(sourcePort,targetPort) = self.newAttributeEdge(sourcePort,targetPort,class.pathSeq())
      in if not(groupName = "" or groupName = null) 
         then 
           if class.inheritsFrom(XCore::Attribute)
           then 
             diagram.defineNewHandler(groupName,className,true,"XCore/Attribute.gif",attHandler);
             // Perhaps this should be done via another menu item...
             self.defineAttributeRegistryContributions(class)
           elseif class.isMetaClass()
           then 
             diagram.defineNewHandler(groupName,className,false,"XCore/Class.gif",metaHandler);
             // Perhaps this should be done via another menu item...
             self.defineMetaClassRegistryContributions(class)
           else diagram.defineNewHandler(groupName,className,false,"XCore/Object.gif",classHandler)
           end
         end
      end
    end

    @Operation addDropped(element)
      @TypeCase(element)
        XCore::Package do
          self.packageDropped(element);
          self.generateEdges()
        end
        XCore::Class do
          self.classDropped(element);
          self.generateEdges()
        end
        else format(stdout,"PackageXClassDiagram::addDropped: unknown element " + element.toString())
      end
    end
    
    @Operation addAssociationMap(associationMap)
      self.addToAssociationMaps(associationMap);
      associationMap.setOwner(self)
    end
    
   @Operation addIntrinsicAssociationConstraintMap(intrinsicAssociationConstraintMap)
      self.addToIntrinsicAssociationConstraintMaps(intrinsicAssociationConstraintMap);
      intrinsicAssociationConstraintMap.setOwner(self)
    end

    @Operation addAssociationInstanceMap(associationInstanceMap)
      self.addToAssociationInstanceMaps(associationInstanceMap);
      associationInstanceMap.setOwner(self)
    end
            
    @Operation addAttributeMap(attributeMap)
      self.attributeMaps := attributeMaps->prepend(attributeMap);
      attributeMap.setOwner(self)
    end
    
    @Operation addAttribute(attribute)
//     let acMaps = self.abstractClassMaps()
//      in
//        @Find(sourceMap,acMaps)
//          when sourceMap.element() = attribute.owner
//          do @Find(targetMap,acMaps)
//               when targetMap.element() = attribute.underlyingType()
//               do let 
//                    edge = diagram.makeAttribute(sourceMap.node,targetMap.node,attribute.of().pathSeq());
//                    //type = attribute.type then
//                    //mult = if type.isKindOf(Set) then "*" elseif type.isKindOf(Seq) then "* <<ordered>>" else "" end
//                    mult = AttributeXAttributeEdge::calcMultLabelString(attribute.mult())
//                  in  
//                    edge.setName(attribute.name.toString());
//                    edge.setMult(mult);
//                    let attributeEdgeMap = AttributeXAttributeEdge(attribute,edge)
//                    in  
//                      self.add(attributeEdgeMap);
//                      self.diagram.add(edge)
//                    end
//                  end
//             end
//        end
//      end
      null
    end
    
    @Operation addClass(class)
      let package = 
            if package.classes->includes(class) 
            then "" 
            else "(from " + class.owner.path() + ")"
            end;
          x = diagram.selectedX() + 100;
          y = diagram.selectedY() + 100 then
        node = ClassNode(class.name.toString(),package,class.isAbstract,class.of().pathSeq(),x,y,diagram.showAttributes(),diagram.showOperations(),diagram.showMetaslots()) then
        map = ClassXNode(class,node,self)
      in 
        @WithoutRendering(self.diagram)
          self.addClassMap(map);
          diagram.addNode(node);
          node.new(diagram);
          if class.isAbstract then
            node.setIsAbstract(true)
          end;
          if node.showAttributes then
            map.generateAttributes()
          end;
          if node.showOperations then
            map.generateOperations()
          end;
          if node.showMetaslots then
            map.generateMetaslots()
          end;
          if node.showOperationValues then
            map.generateOperationValues()
          end;
          node
        end
      end
    end
    
    @Operation addClassMap(classMap)
      self.classMaps := classMaps->prepend(classMap);
      classMap.setOwner(self)
    end
    
    @Operation addContainerMap(containerMap)
      self.addToContainerMaps(containerMap);
      containerMap.setOwner(self)
    end

    /* @Operation addContentsChangedDaemon()
      package.addContentDaemon(self,
        @Operation(newContents,oldContents)
          let
            added = newContents - oldContents;
            removed = oldContents - newContents
          in
            if not added->isEmpty then
              @For value in added do
                //if not value.isKindOf(Class) and not value.isKindOf(Package)
                //then self.elementAdded(value)
                if value.isKindOf(Associations::Association)
                then self.associationAdded(value)
                end
              end 
            else
            
            if not removed->isEmpty then
              @For value in removed do
                //if not value.isKindOf(Class) and not value.isKindOf(Package)
                //then self.elementRemoved(value)
                if value.isKindOf(Associations::Association)
                then self.associationRemoved(value)
                end
              end 
            end
          end
        end
      )
    end */

    @Operation addDependencyMap(dependencyMap)
      self.addToDependencyMaps(dependencyMap);
      dependencyMap.setOwner(self)
    end
    
    @Operation addDelegationMap(delegationMap)
      self.addToDelegationMaps(delegationMap);
      delegationMap.setOwner(self)
    end
    
    @Operation addDocMap(docMap)
      self.addToDocMaps(docMap);
      docMap.setOwner(self)
    end
    
    @Operation addElementMap(elementMap)
      self.addToElementMaps(elementMap);
      elementMap.setOwner(self)
    end
    
    @Operation addImportTrays()
      @For i in package.imports when i.isReallyKindOf(Package) and not Seq{XCore,Root}->includes(i) do
        // The imports of a package are available as buttons in the palette
        // to create objects on the diagram. This allows type and instance
        // to be mixed on a single diagram...
        self.addImportTray(i)
      end
    end
    
    @Operation addImportTray(package)
      let name = package.name.toString();
          map = self
      in diagram.defineToolGroup(name);
         @For class in package.classes when not(class.isAbstract) do
           let handler(x,y) = map.add(class())
           in diagram.defineNewHandler(name,class.name.toString(),false,"XCore/Object.gif",handler)
           end
         end
      end
    end
    
    @Operation addInheritanceMap(inheritanceMap)
      self.inheritanceMaps := inheritanceMaps->prepend(inheritanceMap);
      inheritanceMap.setOwner(self)
    end
    
    @Operation addMetaTray()
      if package.isMetaPackage()
      then 
        let parents = package.allParents() then
            contents = parents->iterate(p O=Set{} | O + p.contents()) then
            classes = contents->select(o | o <> null and o.isKindOf(Class)) then
            attributes = classes->select(c | c.inheritsFrom(Attribute));
            associations = classes->select(c | c.inheritsFrom(Associations::Association)) then
            classes = classes->including(Class)->excluding(Package)->excluding(Array)->excluding(Enum) then 
            metaclasses = classes->select(c | c.isMetaClass());
            thePackage = package
        in diagram.defineToolGroup("Meta Elements");
           @For a in attributes do
             diagram.defineNewHandler(
               "Meta Elements",
               a.name.toString() + "(subclass)",
               false,
               "XCore/Attribute.gif",
               @Operation(x,y) 
                 // Create a sub-class of a..
                 let class = Class(thePackage.newName(a.name.toString() + "Like"))
                 in class.addParent(a);
                    thePackage.add(class);
                    self.elementChanged()
                 end
               end)
           end;
           @For a in associations do
             diagram.defineNewHandler(
               "Meta Elements",
               a.name.toString() + "(subclass)",
               false,
               "XCore/Association.gif",
               @Operation(x,y) 
                 // Create a sub-class of a..
                 let class = Class(thePackage.newName(a.name.toString() + "Like"))
                 in class.addParent(a);
                    thePackage.add(class);
                    self.elementChanged()
                 end
               end)
           end;
           @For metaclass in metaclasses do
             diagram.defineNewHandler(
               "Meta Elements",
               metaclass.name.toString() + "(subclass)",
               false,
               "XCore/Class.gif",
               @Operation(x,y) 
                 // Create a new instance of the meta-class and make it inherit 
                 // from Class (actually this should be selectable). Should get
                 // the node and move it...
                 let class = metaclass(thePackage.newName(metaclass.name.toString()))
                 in class.addParent(Class);
                    thePackage.add(class);
                    self.elementChanged()
                 end
               end)
           end
        end
      else self.deleteMetaTray()
      end
    end
    
    @Operation addPackageMap(packageMap)
      self.addToPackageMaps(packageMap);
      packageMap.setOwner(self)
    end
    
    @Operation addPackage(package)
      let owningPackage = 
        if self.package.packages->includes(package) 
        then "" 
        else "(from " + package.owner.path() + ")"
        end then
        node = PackageNode(package.name.toString(),owningPackage,package.of().pathSeq(),0,0)
      in
        @WithoutRendering(self.diagram)
          self.add(PackageXNode(package,node,self));
          diagram.add(node);
          node.new(diagram)
        end
      end
    end
    
    @Operation associationInstanceAdded(associationInstance)
      if not associationInstanceMaps->exists(map | map.associationInstance = associationInstance)
      then
      	let acMaps = self.abstractClassMaps()
        in
          @Find(sourceMap,acMaps)
            when sourceMap.element() = associationInstance.class1
            do @Find(targetMap,acMaps)
              when targetMap.element() = associationInstance.class2
                do 
	                let name_label = Label("instance of " + associationInstance.class1.of().getAttribute(associationInstance.name1).association.name,"",0,-16,true, Color(120,120,120),0+1) then
						edge = AssociationInstanceEdge(name_label, sourceMap.node.ports().head(),targetMap.node.ports().head(),associationInstance.class1.of().getAttribute(associationInstance.name1).association.pathSeq())
			        in self.add(AssociationInstanceXAssociationInstanceEdge(associationInstance,edge));
        			   edge.new(self.diagram);
		        	   self.diagram.add(edge)
	        		end            
              end
          end
        end
      end
    end
    
    @Operation intrinsicAssociationConstraintAdded(intrinsicAssociationConstraint)
	  if not intrinsicAssociationConstraintMaps->exists(map | map.intrinsicAssociationConstraint = intrinsicAssociationConstraint)
      then
      	let acMaps = self.abstractClassMaps()
        in
          @Find(sourceMap,acMaps)
            when sourceMap.element() = intrinsicAssociationConstraint.constraint1.owner
            do @Find(targetMap,acMaps)
              when targetMap.element() = intrinsicAssociationConstraint.constraint2.owner
                do 
	                let name_label = Label(intrinsicAssociationConstraint.refersTo.name,"",0,-16,true, Color(120,120,120),0+1) then
						edge = IntrinsicAssociationConstraintEdge(name_label, sourceMap.node.ports().head(),targetMap.node.ports().head(),intrinsicAssociationConstraint.refersTo.pathSeq())
			        in self.add(IntrinsicAssociationConstraintXIntrinsicAssociationConstraintEdge(intrinsicAssociationConstraint,edge));
        			   edge.new(self.diagram);
		        	   self.diagram.add(edge)
	        		end            
              end
          end
        end
      end
     end
    
    @Operation associationAdded(association)
      if not associationMaps->exists(map | map.association = association)
      then
        let acMaps = self.abstractClassMaps()
        in
          @Find(sourceMap,acMaps)
            when sourceMap.element() = association.end1.underlyingType()
            do @Find(targetMap,acMaps)
              when targetMap.element() = association.end2.underlyingType()
                do let name = association.name.toString();
                  mult1 = Multiplicity(association.end1.mult.labelString(),"start");
                  mult2 = Multiplicity(association.end2.mult.labelString(),"end") then 
//                  instLevel1 = Label("Ø", "start", 40, 40, true, true, Color(0,0,0));
                  instLevel1 = Label("Ø", "start", 40, 40, true, Color(0,0,0));
//                  instLevel2 = Label("Ø", "start", -40, -40, true, true, Color(0,0,0));
                  instLevel2 = Label("Ø", "start", -40, -40, true, Color(0,0,0));
                  varName1 = Label(association.end1.name.toString(),"start",10,10,true);
                  varName2 = Label(association.end2.name.toString(),"end",-10,-10,true);
                  displayName1 = Label("displayName1","",0,-16,true, Color(0,0,0),0+1);
            	  displayName2 = Label("displayName2","",0, 16,true, Color(0,0,0),0-1) then
                  end1 = AssociationEnd(varName1,displayName1,mult1,instLevel1);
                  end2 = AssociationEnd(varName2,displayName2,mult2,instLevel2) then
                  edge = diagram.makeAssociation(name,end1,end2,sourceMap.node,targetMap.node,association.of().pathSeq())
                in self.add(AssociationXAssociationEdge(association,edge));
                  self.diagram.add(edge)
                end
              end
          end
        end
      end
    end
    
    @Operation attributeAdded(attribute)

      // Processes the addition of an attribute wrt the supplied
      // mappings. The accessors are used to map the maps to the
      // underlying model elements.

      if not attributeMaps->exists(map | map.attribute = attribute) and
         not attribute.isKindOf(Associations::End)
      then
        self.addAttribute(attribute)
      end
    end
    
    @Operation attributeDropped(attribute)
      self.addAttribute(attribute)
    end
    
    @Operation associationEdgeAdded(associationEdge)
      if self.validEdge(associationEdge)
      then
        if not associationMaps->exists(map | map.edge = associationEdge)
        then
          let acMaps = self.abstractClassMaps()
          in
            @Find(end1Map,acMaps)
              when end1Map.node = associationEdge.sourceNode()
              do @Find(end2Map,acMaps)
                   when end2Map.node = associationEdge.targetNode()
                   do let name = associationEdge.name; //package.newName("A");
                          class1 = end1Map.element();
                          class2 = end2Map.element() then
                          class1Name = class1.name.toString().lowerCaseInitialLetter();
                          class2Name = class2.name.toString().lowerCaseInitialLetter() then
                          end1Name = if class2.hasElement(class1Name) then class2.newName("a") else class1Name end;
                          end2Name = if class1.hasElement(class2Name) then class1.newName("b") else class2Name end;
                          metaClass = associationEdge.typePath->ref(Seq{Root,XCore,Associations}) then
                          association = metaClass(name);
                          end1 = Associations::End(end1Name,class1,Associations::One());
                          end2 = Associations::End(end2Name,class2,Associations::One())
                      in  //associationEdge.setName(name);
                          associationEdge.end1.setName(end1Name);
                          associationEdge.end2.setName(end2Name);
                          association.setEnd1(end1);
                          association.setEnd2(end2);
                          self.add(AssociationXAssociationEdge(association,associationEdge));
                          package.add(association);
                          self.elementChanged();
                          association.init()
                      end
                 end
            end       
          end
        end
      end
    end
    
    @Operation attributeEdgeAdded(attributeEdge)
      if self.validEdge(attributeEdge)
      then
        if not attributeMaps->exists(map | map.edge = attributeEdge)
        then
          let acMaps = self.abstractClassMaps()
          in
            @Find(ownerMap,acMaps)
              when ownerMap.node = attributeEdge.sourceNode()
              do @Find(typeMap,acMaps)
                   when typeMap.node = attributeEdge.targetNode()
                   do let class = ownerMap.element();
                        type = typeMap.element() then
                        typeName = type.name.toString().lowerCaseInitialLetter() then
                        name = if class.hasElement(typeName) then class.newName("att") else typeName end; 
                        metaClass = attributeEdge.typePath->ref(Seq{Root,XCore}) then
                        attribute = metaClass(name,type) then
                        attributeEdgeMap = AttributeXAttributeEdge(attribute,attributeEdge)
                    in  attributeEdge.setName(name);
                        self.add(attributeEdgeMap);
                        class.add(attribute);
                        self.elementChanged()
                    end
                 end
            end
          end
        end
      end
    end
    
    @Operation associationEdgeRemoved(associationEdge)
      @Find(associationMap,associationMaps)
        when associationMap.edge = associationEdge
        do self.remove(associationMap);
           let association = associationMap.association
           in  association.remove();
               association.owner.remove(association)
           end
      end
    end

    @Operation associationInstanceEdgeAdded(associationInstanceEdge)
      if self.validEdge(associationInstanceEdge)
      then
        if not associationInstanceMaps->exists(map | map.edge = associationInstanceEdge)
        then
          let acMaps = self.abstractClassMaps()
          in
            @Find(class1Map,acMaps)
              when class1Map.node = associationInstanceEdge.sourceNode()
              do @Find(class2Map,acMaps)
                   when class2Map.node = associationInstanceEdge.targetNode()
                   do let name = associationInstanceEdge.name.text; //package.newName("A");
                          class1 = class1Map.class;
                          class2 = class2Map.class then
                          metaClass = associationInstanceEdge.typePath->ref(Seq{Root,package}) then
						  associationInstance = Associations::AssociationInstance(package.newName(metaClass.name+"Instance"))
                      in  associationInstance.setSlot1(class1,metaClass.end2.name);
                          associationInstance.setSlot2(class2,metaClass.end1.name);
                          associationInstance.checkDaemons();
                          self.add(AssociationInstanceXAssociationInstanceEdge(associationInstance,associationInstanceEdge));
                          package.add(associationInstance);
                          self.elementChanged();
                          associationInstance.init()
                      end
                 end
            end       
          end
        end
      end
    end
    
    @Operation associationInstanceEdgeRemoved(associationInstanceEdge)
      @Find(associationInstanceMap,associationInstanceMaps)
        when associationInstanceMap.edge = associationInstanceEdge
        do self.remove(associationInstanceMap);
           let associationInstance = associationInstanceMap.associationInstance
           in  associationInstance.remove();
               associationInstance.owner.remove(associationInstance)
           end
      end
    end

	 @Operation intrinsicAssociationConstraintEdgeAdded(intrinsicAssociationConstraintEdge)
      if self.validEdge(intrinsicAssociationConstraintEdge)
      then
        if not intrinsicAssociationConstraintMaps->exists(map | map.edge = intrinsicAssociationConstraintEdge)
        then
          let acMaps = self.abstractClassMaps()
          in
            @Find(class1Map,acMaps)
              when class1Map.node = intrinsicAssociationConstraintEdge.sourceNode()
              do @Find(class2Map,acMaps)
                   when class2Map.node = intrinsicAssociationConstraintEdge.targetNode()
                   do let name = intrinsicAssociationConstraintEdge.name.text; //package.newName("A");
                          class1 = class1Map.class;
                          class2 = class2Map.class then
                          metaClass = intrinsicAssociationConstraintEdge.typePath->ref(Seq{Root,package}) then
						  intrinsicAssociationConstraint = Associations::IntrinsicAssociationConstraint(package.newName(metaClass.name+"Constraint"))
                      in  intrinsicAssociationConstraint.setConstraint1(class1.newIntrinsicAssociationConstraint(metaClass.end1,class2));
                          intrinsicAssociationConstraint.setConstraint2(class2.newIntrinsicAssociationConstraint(metaClass.end2,class1));
                          intrinsicAssociationConstraint.setRefersTo(metaClass);
                          intrinsicAssociationConstraint.checkDaemons();
                          self.add(IntrinsicAssociationConstraintXIntrinsicAssociationConstraintEdge(intrinsicAssociationConstraint,intrinsicAssociationConstraintEdge));
                          package.add(intrinsicAssociationConstraint);
                          intrinsicAssociationConstraint.init()
                      end
                 end
            end       
          end
        end
      end
    end
    
    @Operation intrinsicAssociationConstraintEdgeRemoved(intrinsicAssociationConstraintEdge)
      @Find(intrinsicAssociationConstraintMap,intrinsicAssociationConstraintMaps)
        when intrinsicAssociationConstraintMap.edge = intrinsicAssociationConstraintEdge
        do self.remove(intrinsicAssociationConstraintMap);
           let intrinsicAssociationConstraint = intrinsicAssociationConstraintMap.intrinsicAssociationConstraint
           in  intrinsicAssociationConstraint.remove();
               intrinsicAssociationConstraint.owner.remove(intrinsicAssociationConstraint)
           end
      end 
      			
    end

    @Operation associationRemoved(association)
      @Find(associationMap,associationMaps)
        when associationMap.association = association
        do 
          self.remove(associationMap);
          associationMap.edge.delete()
      end
    end

    @Operation associationInstanceRemoved(associationInstance)
      @Find(associationInstanceMap,associationInstanceMaps)
        when associationInstanceMap.associationInstance = associationInstance
        do 
          self.remove(associationInstanceMap);
          associationInstanceMap.edge.delete()
      end
    end

    @Operation intrinsicAssociationConstraintRemoved(intrinsicAssociationConstraint)
      @Find(intrinsicAssociationConstraintMap,intrinsicAssociationConstraintMaps)
        when intrinsicAssociationConstraintMap.intrinsicAssociationConstraint = intrinsicAssociationConstraint
        do 
          self.remove(intrinsicAssociationConstraintMap);
          intrinsicAssociationConstraintMap.edge.delete()
      end
    end
    
    @Operation delegationSourceChanged(delegationMap,newSourceNode,oldSourceNode)
      @Find(oldClassMap,self.classMaps)
        when oldClassMap.node = oldSourceNode do 
          @Find(newClassMap,self.classMaps)
            when newClassMap.node = newSourceNode do    
              let oldClass = oldClassMap.class;
                  newClass = newClassMap.class
              in
                @WithoutDaemons(newClass)
                  newClass.delegatesTo := oldClass.delegatesTo
                end;
                @WithoutDaemons(oldClass)
                  oldClass.delegatesTo := null
                end
              end
          end  
      end  
      end   
       
    @Operation delegationTargetChanged(delegationMap,newTargetNode,sourceNode)
      @Find(sourceClassMap,self.classMaps)
        when sourceClassMap.node = sourceNode do 
          @Find(newClassMap,self.classMaps)
            when newClassMap.node = newTargetNode do    
              let sourceClass = sourceClassMap.class;
                  newClass = newClassMap.class
              in
                @WithoutDaemons(sourceClass)
                  sourceClass.delegatesTo := newClass
                end
              end
          end  
      end 
    end

    @Operation associationEnd1Changed(associationMap,newEnd1Node)
      @Find(classMap,self.abstractClassMaps())
        when classMap.node = newEnd1Node
        do let association = associationMap.association then
               end1 = association.end1
           in end1.remove();
              end1.type := classMap.element();
              end1.init();
              self.elementChanged()
        end
      end
    end
    
    @Operation associationEnd2Changed(associationMap,newEnd2Node)
      @Find(classMap,self.abstractClassMaps())
        when classMap.node = newEnd2Node
        do let association = associationMap.association then
               end2 = association.end2
           in end2.remove();
              end2.type := classMap.element();
              end2.init();
              self.elementChanged()
           end
      end
    end
    
    @Operation associationEdgeAddedDaemon(diagram,slot,associationEdge)
      self.associationEdgeAdded(associationEdge)
    end
    
    @Operation associationEdgeRemovedDaemon(diagram,slot,associationEdge)
      self.associationEdgeRemoved(associationEdge)
    end

    @Operation associationInstanceEdgeAddedDaemon(diagram,slot,associationInstanceEdge)
      self.associationInstanceEdgeAdded(associationInstanceEdge)
    end
    
    @Operation associationInstanceEdgeRemovedDaemon(diagram,slot,associationInstanceEdge)
      self.associationInstanceEdgeRemoved(associationInstanceEdge)
    end
    
    @Operation intrinsicAssociationConstraintEdgeAddedDaemon(diagram,slot,intrinsicAssociationConstraint)
      self.intrinsicAssociationConstraintEdgeAdded(intrinsicAssociationConstraint)
    end
    
    @Operation intrinsicAssociationConstraintEdgeRemovedDaemon(diagram,slot,intrinsicAssociationConstraint)
      self.intrinsicAssociationConstraintEdgeRemoved(intrinsicAssociationConstraint)
    end
            
    @Operation attributeEdgeAddedDaemon(diagram,slot,attributeEdge)
      self.attributeEdgeAdded(attributeEdge)
    end
    
    @Operation attributeEdgeRemovedDaemon(diagram,slot,attributeEdge)
      self.attributeEdgeRemoved(attributeEdge)
    end
    
    @Operation attributeEdgeRemoved(attributeEdge)
      @Find(attributeMap,attributeMaps)
        when attributeMap.edge = attributeEdge
        do
          self.remove(attributeMap);
          let attribute = attributeMap.attribute
          in  attribute.owner.remove(attribute)
          end
      end
    end
    
    @Operation attributeOwnerChanged(attributeMap)
    
      // If the owner changes then remove the attribute map
      // and re-add the attribute only if the source of the
      // attribute edge is not the current owner.
      
      @Find(map,self.abstractClassMaps())
        when map.element() = attributeMap.attribute.owner and
             map.node = attributeMap.edge.source.owner
        else self.remove(attributeMap);
             attributeMap.edge.delete();
             self.attributeAdded(attributeMap.attribute)
      end
    end
    
    @Operation attributeRemoved(attribute)
      @Find(attributeMap,attributeMaps)
        when attributeMap.attribute = attribute
        do 
          self.remove(attributeMap);
          attributeMap.edge.delete()
      end
    end
    
    @Operation attributeSourceChanged(attributeMap,newNode)
      @Find(map,self.abstractClassMaps())
        when map.node = newNode
        do let attribute = attributeMap.attribute
           in attribute.owner.remove(attribute);
              map.element().add(attribute);
              self.elementChanged()
           end
        else
          attributeMap.edge.delete()
      end
    end
    
    @Operation attributeTargetChanged(attributeMap,newClassNode)
      @Find(map,self.abstractClassMaps())
        when map.node = newClassNode
        do let attribute = attributeMap.attribute;
               mult = attributeMap.edge.mult();
               class = map.element()
           in attribute.type := class;
              attribute.updateTypeFromMult();
              self.elementChanged()
           end
        else
          attributeMap.edge.delete()
      end
    end
    
    @Operation attributeTypeChanged(attributeMap)
    
      // Remove the attribute map and re-enter the attribute
      // in the case where the edge does not have the type as
      // a target.
      
      let foundMap = 
        @Find(map,self.abstractClassMaps())
          when map.element() = attributeMap.attribute.underlyingType() and
               map.node = attributeMap.edge.target.owner
          else null
        end
      in
        if foundMap.isKindOf(Null)
        then
          self.remove(attributeMap);
          attributeMap.edge.delete();
          self.attributeAdded(attributeMap.attribute)
        end
      end
    end

    @Operation buildGlobalMenu(rightClickable)      
      let globalMenu = rightClickable.globalMenu(false)
      in
        self.buildGlobalMenuExtras(globalMenu);
        globalMenu.new();
        globalMenu
      end
    end

    @Operation buildGlobalMenuExtras(globalMenu)
      super(globalMenu);
      globalMenu.add(MenuAction("Add Missing Package Contents to Diagram",RightClickableProxy::proxyTarget,Seq{},PackageXClassDiagram::addMissingContents));
      //globalMenu.add(MenuAction("Inherit",RightClickableProxy::proxyTarget,Seq{},PackageXClassDiagram::inheritMenu));
      self
    end

    @Operation checkDaemons()
      // Check that the package and diagram have the
      // appropriate daemons.
      super();
      self.checkPackageDaemons();
      self.checkDiagramDaemons()
    end
    
    @Operation checkDiagramDaemons()
      @SlotValueChanged multi once + PackageXClassDiagram::noteNodeAdded(diagram,"noteNodes") 				  	    end;
      @SlotValueChanged multi once - PackageXClassDiagram::noteNodeRemoved(diagram,"noteNodes") 			        end;
      @SlotValueChanged multi once + PackageXClassDiagram::classNodeAddedDaemon(diagram,"classNodes")               end;
      // @SlotValueChanged multi once - PackageXClassDiagram::classNodeRemovedDaemon(diagram,"classNodes")          end;
      @SlotValueChanged multi once + PackageXClassDiagram::packageNodeAddedDaemon(diagram,"packageNodes")           end;
      // @SlotValueChanged multi once - PackageXClassDiagram::packageNodeRemovedDaemon(diagram,"packageNodes")      end;
      @SlotValueChanged multi once - PackageXClassDiagram::elementNodeRemovedDaemon(diagram,"elementNodes")         end;
      @SlotValueChanged multi once + PackageXClassDiagram::inheritanceEdgeAddedDaemon(diagram,"inheritanceEdges")   end;
      // @SlotValueChanged multi once - PackageXClassDiagram::inheritanceEdgeRemovedDaemon(diagram,"inheritanceEdges") end;
      @SlotValueChanged multi once + PackageXClassDiagram::containsEdgeAddedDaemon(diagram,"containsEdges")         end;
      @SlotValueChanged multi once - PackageXClassDiagram::containsEdgeRemovedDaemon(diagram,"containsEdges")       end;
      @SlotValueChanged multi once + PackageXClassDiagram::dependencyEdgeAddedDaemon(diagram,"dependencyEdges")     end;
      @SlotValueChanged multi once - PackageXClassDiagram::dependencyEdgeRemovedDaemon(diagram,"dependencyEdges")   end;
      @SlotValueChanged multi once + PackageXClassDiagram::delegationEdgeAddedDaemon(diagram,"delegationEdges")     end;
      @SlotValueChanged multi once - PackageXClassDiagram::delegationEdgeRemovedDaemon(diagram,"delegationEdges")   end;
      @SlotValueChanged multi once + PackageXClassDiagram::associationEdgeAddedDaemon(diagram,"associationEdges")   end;
      // @SlotValueChanged multi once - PackageXClassDiagram::associationEdgeRemovedDaemon(diagram,"associationEdges") end;
      @SlotValueChanged multi once + PackageXClassDiagram::attributeEdgeAddedDaemon(diagram,"attributeEdges")       end;
      @SlotValueChanged multi once - PackageXClassDiagram::attributeEdgeRemovedDaemon(diagram,"attributeEdges")     end;
      @SlotValueChanged multi once + PackageXClassDiagram::associationInstanceEdgeAddedDaemon(diagram,"associationInstanceEdges")   end;
      @SlotValueChanged multi once - PackageXClassDiagram::associationInstanceEdgeRemovedDaemon(diagram,"associationInstanceEdges") end;
      @SlotValueChanged multi once + PackageXClassDiagram::intrinsicAssociationConstraintEdgeAddedDaemon(diagram,"intrinsicAssociationConstraintEdges")   end;
      @SlotValueChanged multi once - PackageXClassDiagram::intrinsicAssociationConstraintEdgeRemovedDaemon(diagram,"intrinsicAssociationConstraintEdges") end

    end

    @Operation metaPackageChanged_classDiagramDaemon(package,slot,newPackage,oldPackage)
      self.refreshToolGroups()
    end

    @Operation nameChanged_classDiagramDaemon(package,slot,newName,oldName)
      diagram.refreshName()
    end
    
    @Operation associationAdded_classDiagramDaemon(package,slot,association)
      self.associationAdded(association)
    end
    
    @Operation associationRemoved_classDiagramDaemon(package,slot,association)
      self.associationRemoved(association)
    end

    @Operation associationInstanceAdded_classDiagramDaemon(package,slot,associationInstance)
      self.associationInstanceAdded(associationInstance)
    end
    
    @Operation associationInstanceRemoved_classDiagramDaemon(package,slot,associationInstance)
      self.associationInstanceRemoved(associationInstance)
    end

    @Operation intrinsicAssociationConstraintAdded_classDiagramDaemon(package,slot,intrinsicAssociationConstraint)
      self.intrinsicAssociationConstraintAdded(intrinsicAssociationConstraint)
    end
    
    @Operation intrinsicAssociationConstraintRemoved_classDiagramDaemon(package,slot,intrinsicAssociationConstraint)
      self.intrinsicAssociationConstraintRemoved(intrinsicAssociationConstraint)
    end
                                    
    @Operation classAdded_classDiagramDaemon(package,slot,class)
	  if not self.eventFiltered("class added")
      then self.classAdded(class);
           self.generateEdges()
      end
    end
    
    @Operation classRemoved_classDiagramDaemon(package,slot,class)
      self.classRemoved(class)
    end
    
    @Operation checkPackageDaemons()
      @SlotValueChanged multi once   PackageXClassDiagram::nameChanged_classDiagramDaemon(package,"name")                end;
      // @SlotValueChanged multi once   PackageXClassDiagram::ownerChanged_classDiagramDaemon(package,"owner")           end;
      @SlotValueChanged multi once + PackageXClassDiagram::associationAdded_classDiagramDaemon(package,"associations")   end;
      @SlotValueChanged multi once - PackageXClassDiagram::associationRemoved_classDiagramDaemon(package,"associations") end;
      @SlotValueChanged multi once + PackageXClassDiagram::classAdded_classDiagramDaemon(package,"classes")              end;
      @SlotValueChanged multi once - PackageXClassDiagram::classRemoved_classDiagramDaemon(package,"classes")            end;
      @SlotValueChanged multi once + PackageXClassDiagram::packageAdded_classDiagramDaemon(package,"packages")           end;
      @SlotValueChanged multi once - PackageXClassDiagram::packageRemoved_classDiagramDaemon(package,"packages")         end;
      @SlotValueChanged multi once + PackageXClassDiagram::parentAdded_classDiagramDaemon(package,"parents")             end;
      @SlotValueChanged multi once - PackageXClassDiagram::parentRemoved_classDiagramDaemon(package,"parents")           end;
      @SlotValueChanged multi once + PackageXClassDiagram::operationAdded_classDiagramDaemon(package,"operations")       end;
      @SlotValueChanged multi once - PackageXClassDiagram::operationRemoved_classDiagramDaemon(package,"operations")     end;
      @SlotValueChanged multi once + PackageXClassDiagram::importAdded_classDiagramDaemon(package,"imports")             end;
      @SlotValueChanged multi once - PackageXClassDiagram::importRemoved_classDiagramDaemon(package,"imports")           end;
      @SlotValueChanged multi once   PackageXClassDiagram::metaPackageChanged_classDiagramDaemon(package,"metaPackage")  end;

      @SlotValueChanged multi once + PackageXClassDiagram::associationInstanceAdded_classDiagramDaemon(package,"associationInstances")   end;
      @SlotValueChanged multi once - PackageXClassDiagram::associationInstanceRemoved_classDiagramDaemon(package,"associationInstances") end;
	  @SlotValueChanged multi once + PackageXClassDiagram::intrinsicAssociationConstraintAdded_classDiagramDaemon(package,"intrinsicAssociationConstraints")   end;
      @SlotValueChanged multi once - PackageXClassDiagram::intrinsicAssociationConstraintRemoved_classDiagramDaemon(package,"intrinsicAssociationConstraints") end
                  
      // self.addContentsChangedDaemon() // to monitor added and removed named elements not covered by above, and associations
    end
    
    @Operation classAdded(class)
      if not classMaps->exists(map | map.class = class) and
         not elementMaps->exists(map | map.element = class)
      then
        self.addClass(class)
      end
    end
    
    @Operation classDropped(class)
    
      // Since a dropped class can be dropped multiple times it is not
      // necessary to guard the addition of a newly dropped class
      
      self.addClass(class)
    end
    
   @Operation classNodeAdded(classNode)
   
      // Create a class based on the newly added node on the diagram.
      // The class node will have a default name therefore we must
      // generate a new name that does not conflict with a class
      // in the current package. The class node contains the metaclass
      // as a path.
      
      if not classMaps->exists(map | map.node = classNode)
      then
        let 
          name = self.newClassName();
          metaClass = classNode.typePath->ref(Seq{Root,XCore}) then
          class = metaClass[name=Symbol(name.toString())] then
          mapClass = (xmf.registry().getExtensionPoint("com.ceteva.diagrams.class.map").find(metaClass).values->head)() then
          map = mapClass(class,classNode,self)
        in 
          classNode.setName(name);
          self.add(map);
          self.package.add(class);
          self.elementChanged();
          if classNode.showOperations then
            map.generateOperations()
          end;
          if classNode.showMetaslots then
            map.generateMetaslots()
          end;
          if classNode.showOperationValues then
            map.generateOperationValues()
          end
        end
      end
    end
    
    @Operation classNodeAddedDaemon(diagram,slot,classNode)
      self.classNodeAdded(classNode)
    end
    
    /*@Operation classNodeRemovedDaemon(diagram,slot,classNode)
      self.classNodeRemoved(classNode)
    end*/
    
    @Operation classRemoved(class)
      @For map in classMaps
        when map.class = class
        do
          map.node.delete();
          self.remove(map)
      end;
      
      if class.isMetaClass() 
        andthen class.level > 0 
          then diagram.removeAnyHandler(class.name,true)
      end;
      
      // Elements (dropped using other) are stored in the classes
      // slot, check to see if it is an element rather than a class
      // that has been removed
      
      @For map in elementMaps
        when map.element = class
        do
          map.node.delete();
          self.remove(map)
      end
    end
    
    /*@Operation classNodeRemoved(classNode)
      
      // no longer used, node is now removed by removing the
      // model element first
      
      self
    end*/
    
    @Operation classInheritanceMaps():Set(ClassXInheritanceEdge)
      inheritanceMaps->select(m | m.isKindOf(ClassXInheritanceEdge))
    end
    
    @Operation commandInterpreter()
      if owner <> null
      then owner.commandInterpreter()
      else
        xmf.findClient(DiagramClient).commandInterpreter
      end
    end
    
    @Operation containerSourceChanged(containerMap,newContainerNode)
      @Find(map,self.nodeMaps())
        when map.node = newContainerNode
        do containerMap.setContainer(map.element())
      end
    end
    
    @Operation containerTargetChanged(containerMap,newContainedNode)
      @Find(map,self.nodeMaps())
        when map.node = newContainedNode
        do containerMap.setContained(map.element())
      end
    end
    
    @Operation containsEdgeAdded(containsEdge)
      if self.validEdge(containsEdge)
      then
        if not containerMaps->exists(map | map.edge = containsEdge)
        then
          @Find(containerMap,self.nodeMaps())
            when containerMap.node = containsEdge.sourceNode()
            do @Find(containedMap,self.nodeMaps())
                when containedMap.node = containsEdge.targetNode()
                do
                  let containsMap = ContainerXContainsEdge(containerMap.element(),containedMap.element(),containsEdge)
                  in
                    self.add(containsMap);
                    containsMap.selectSlot()
                  end
             end
          end
        end
      end
    end
    
    @Operation containsEdgeRemoved(containsEdge)
      @Find(containsMap,containerMaps)
        when containsMap.edge = containsEdge
        do self.remove(containsMap);
           containsMap.removeValue()
      end
    end
    
    @Operation containsEdgeAddedDaemon(diagram,slot,containsEdge)
      self.containsEdgeAdded(containsEdge)
    end
    
    @Operation containsEdgeRemovedDaemon(diagram,slot,containsEdge)
      self.containsEdgeRemoved(containsEdge)
    end
    
    @Operation deleteImportTray(package)
      diagram.deleteGroupNamed(package.name.toString())
    end

    @Operation handleDiagramCloseEvent(diagram)
      if package.owner = null
      then
        owner.remove(self)
      else
        super(diagram)
      end
    end

    @Operation handleDiagramRenewEvent(diagram)
      self.refreshToolGroups()
    end
    
    @Operation defineActions()
      // Any default actions that require access to the mapping.
      // Remember self will be the diagram in any handler.
      let map = self then
          delete() = 
            @WithoutRendering(self)
              @For m in map.inheritanceMaps when m.edge.selected do
                m.child.removeParent(m.parent)
              end; 
              @For m in map.attributeMaps when m.edge.selected do
                m.attribute.deleteRecursive()
              end; 
              @For m in map.associationMaps when m.edge.selected do
                m.association.deleteRecursive()
              end;
              @For m in map.classMaps when m.node.selected do
                m.class.deleteRecursive()
              end;
              @For m in map.packageMaps when m.node.selected do
               m.package.deleteRecursive()
              end
            end;
          manageParents() = map.package.setParents_client();
          manageImports() = map.package.setImports_client()
      in diagram.defineActionHandler("Actions","Delete Selected","delete","Tools/Delete.gif",delete);
         diagram.defineActionHandler("Actions","Manage Parents","parents","XCore/Generalization.gif",manageParents);
         diagram.defineActionHandler("Actions","Manage Imports","imports","XCore/Dependency.gif",manageImports);
         // User defined operations with the named properties below are transformed into actions.
         // The operation properties define the group, label and icon. These default as shown...
         @For handler in package.allOperations() when handler.getProperty("diagramAction",false) do
           self.actionAdded(handler)
         end
      end
    end
    
    @Operation defineAttributeRegistryContributions(attClass)
      self.ensureDisplayPackage();
      self.defineAttributeTextExtension(attClass);
      self.defineAttributeXTextExtension(attClass)
    end
    
    @Operation defineAttributeTextExtension(attClass)
      let registry      = xmf.registry();
          attTextId     = "com.ceteva.diagrams.attribute.text";
          displays      = Clients::Displays.getElement(package.name);
          attributeText = XCore::Class(attClass.name+"Text") then
          accessor()    = displays.getElement(attClass.name+"Text")
      in attributeText.addParent(AttributeText);
         displays.add(attributeText);
         registry.addContribution(attTextId,ExtensionPoints::Contribution(attClass,[accessor]))
      end
    end
    
    @Operation defineAttributeXTextExtension(attClass)
      let registry       = xmf.registry();
          attXTextId     = "com.ceteva.diagrams.attribute.text.map";
          displays       = Clients::Displays.getElement(package.name);
          attributeXText = XCore::Class(attClass.name+"XText") then
          accessor()     = displays.getElement(attClass.name+"XText")
      in attributeXText.addParent(AttributeXText);
         displays.add(attributeXText);
         registry.addContribution(attXTextId,ExtensionPoints::Contribution(attClass,[accessor]))
      end
    end
    
    @Operation defineMetaClassRegistryContributions(metaClass)
      // When a metaClass is added to the diagram, we add entries into the sub-package
      // called Displays. The user can then navigate to the elements in this package
      // and extend or redefine them...
      self.ensureDisplayPackage();
      self.defineClassNodeExtension(metaClass);
      self.defineClassXNodeExtension(metaClass)
    end
    
    @Operation defineClassNodeExtension(metaClass)
      // An extension point for class node displays. The extension is an operation defined
      // in the registry that receives (x,y) the type path and the diagram and adds an
      // instance of ClassNode to the diagram. By adding a sub-class of ClassNode to the
      // Displays package, the user can override the display elements...
      let registry    = xmf.registry();
          classNodeId = "com.ceteva.diagrams.class.node";
          displays    = Clients::Displays.getElement(package.name);
          classNode   = XCore::Class(metaClass.name+"Node") then
          createClassNode(x,y,typePath,diagram) = 
            @WithoutRendering(diagram)
              let class = displays.getElement(metaClass.name+"Node") then
                  node = class("A Class","",false,typePath,x,y,diagram.showAttributes(),diagram.showOperations(),true)
              in node.new(diagram,true);
                 diagram.addNode(node);
                 node
              end
            end
      in classNode.addParent(ClassNode);
         displays.add(classNode);
         registry.addContribution(classNodeId,ExtensionPoints::Contribution(metaClass,[createClassNode]))
      end
    end
    
    @Operation defineClassXNodeExtension(metaClass)
      // The registry contains a sub-class of ClassXNode that will be used to manage the
      // association between an instance of ClassNode and an instance of metaClass. By 
      // adding the sub-class of ClassXNode to Displays, the user can override the mapping...
      let registry   = xmf.registry();
          classMapId = "com.ceteva.diagrams.class.map";
          displays   = Clients::Displays.getElement(package.name);
          classXNode = XCore::Class(metaClass.name+"XNode") then
          accessor() = displays.getElement(metaClass.name+"XNode")
      in classXNode.addParent(ClassXNode);
         displays.add(classXNode);
         registry.addContribution(classMapId,ExtensionPoints::Contribution(metaClass,[accessor]))
      end
    end
    
    @Operation defineToggles()
      // Any default toggles that require access to the mapping...
      null
    end
    
    @Operation deleteMetaTray()
      diagram.deleteGroupNamed("Meta Elements")
    end

    @Operation dependencyEdgeAddedDaemon(diagram,slot,dependencyEdge)
      self.dependencyEdgeAdded(dependencyEdge)
    end
    
    @Operation delegationEdgeAddedDaemon(diagram,slot,delegationEdge)
      self.delegationEdgeAdded(delegationEdge)
    end
    
    @Operation dependencyEdgeAdded(dependencyEdge)
      if self.validEdge(dependencyEdge)
      then
        if not dependencyMaps->exists(map | map.edge = dependencyEdge)
        then
          @Find(sourceMap,self.nodeMaps())
            when sourceMap.node = dependencyEdge.sourceNode()
            do @Find(targetMap,self.nodeMaps())
                 when targetMap.node = dependencyEdge.targetNode()
                  do let source = sourceMap.element();
                         target = targetMap.element();
                         metaClass = dependencyEdge.typePath->ref(Seq{Root,XCore}) then
                         dependency = metaClass(source,target)
                     in  self.add(DependencyXDependencyEdge(dependency,dependencyEdge));
                         dependency.attach()
                     end
               end
          end
        end
      end
    end
    
    @Operation delegationEdgeAdded(delegationEdge)
      if self.validEdge(delegationEdge)
      then
        if not delegationMaps->exists(map | map.edge = delegationEdge)
        then
          @Find(sourceMap,self.nodeMaps())
            when sourceMap.node = delegationEdge.sourceNode()
            do @Find(targetMap,self.nodeMaps())
              when targetMap.node = delegationEdge.targetNode()
              do let source = sourceMap.element();
                target = targetMap.element()
              in self.add(DelegationXDelegationEdge(source,target,delegationEdge))
                //;delegation.attach()
                ;self.cleanUpDelegations(source,target)
              end
            end
          end
        end
      end
    end
    
    @Operation cleanUpDelegations(source,target)      
      @Find(delegationMap,delegationMaps)
        when delegationMap.roleClass = source and delegationMap.roleFillerClass <> target
        do self.remove(delegationMap);
          delegationMap.edge.delete();
          delegationMap.owner.remove(delegationMap)
      end
    end
    
    @Operation dependencyEdgeRemoved(dependencyEdge)
      @Find(dependencyMap,dependencyMaps)
        when dependencyMap.edge = dependencyEdge
        do self.remove(dependencyMap);
           dependencyMap.detach();
           dependencyMap.dispose()
      end
    end
    
    @Operation dependencyEdgeRemovedDaemon(diagram,slot,dependencyEdge)
      self.dependencyEdgeRemoved(dependencyEdge)
    end
      
    @Operation delegationEdgeRemovedDaemon(diagram,slot,delegationEdge)
      self.delegationEdgeRemoved(delegationEdge)
    end
    
    
    @Operation delegationEdgeRemoved(delegationEdge)
      @Find(delegationMap,delegationMaps)
        when delegationMap.edge = delegationEdge
        do self.remove(delegationMap);
           delegationMap.dispose()
      end
    end
    
            @Operation dependencySourceChanged(dependency)
      // We do nothing for this since we don't expect
      // a dependency to be directly modified. Update
      // this in line with other model element changes.
      self
    end
    
    @Operation dependencyEdgeSourceChanged(map,node)
      @Find(classMap,self.nodeMaps())
        when classMap.node = node
        do map.dependency.detach();
           map.dependency.setSource(classMap.element());
           map.dependency.attach() 
      end   
    end
    
    @Operation dependencyEdgeTargetChanged(map,node)
      @Find(classMap,self.nodeMaps())
        when classMap.node = node
        do map.dependency.detach();
           map.dependency.setTarget(classMap.element());
           map.dependency.attach() 
      end   
    end
    
    @Operation dependencyTargetChanged(dependency)
      // We do nothing for this since we don't expect
      // a dependency to be directly modified. Update
      // this in line with other model element changes.
      self
    end
    
    @Operation debug(debug)
      owner.debug(debug)
    end

    @Operation dropIfNecessary(element)
      if not self.nodeExistsFor(element)
      then
        self.addDropped(element)
      end
    end

    @Operation dropOtherNode(x,y,C)
    
      // Specifies the set of classes to offer via the menu for a
      // dropped node at position (x,y).
      
      let classes = C->asSeq->qsort(@Operation(c1,c2) c1.name < c2.name end) then
          names = classes.name->map("toString") then
          choice = xmf.select("General Element","Select a type for the new node.",names,null,null)
      in if choice <> null
         then 
           let class = classes->at(names->indexOf(choice)) then
               instance = try class() catch(exception) try class.new() catch(exception) null end end;
               message = "Do you want to add this element to the contents of package " + package.name() + "?. " + 
               "If you choose no, it will only be deletable if you add it to the contents slot of another object using the Slot Value button." then
               addToPackage =
                 if instance.isReallyKindOf(Contained)
                 then xmf.question(message)
                 else false
                 end
           in
              if instance <> null
              then 
                if instance.isKindOf(NamedElement)
                then instance.setName(package.newName(class.name.toString()))
                end;
                self.elementAdded(instance,x,y);
                if addToPackage
                then package.add(instance)
                end
              end
           end
         end
      end
    end

    @Operation duplicateInheritanceEdge(edge,childMap,parentMap)
      inheritanceMaps->exists(m | m.child = childMap.element() and m.parent = parentMap.element()
        and m.edge <> edge)
    end
    
    @Operation elementAdded(element)
      self.elementAdded(element,0,0)
    end

    @Operation elementAdded(element,x,y)
      if element <> null and element.isKindOf(Object)
      then self.objectAdded(element,x,y)
      else self.nonObjectAdded(element,x,y)
      end
    end
    
    @Operation elementChanged()
      super();
      "PackageXClassDiagrams::elementChanged".println()
    end
    
    @Operation ensureDisplayPackage()
    
      // The Displays package is used to contain definitions for the
      // display of elements. It is intended to contain defaults that
      // can be extended by the user...
      
      if not Clients::Displays.hasElement(package.name)
      then Clients::Displays.add(Package(package.name))
      end
    end
    
    @Operation objectAdded(element,x,y)
      
      // An object displays its simply-typed slot-values...
          
      let node = ObjectNode(element.of(),x,y) then
          map = ObjectXNode(element,node,self) 
      in @WithoutRendering(self.diagram)
           self.add(map);
           diagram.add(node);
           node.new(diagram);
           map.createSlotText();
           map.elementChanged()
         end
      end
    end
    
    @Operation nonObjectAdded(element,x,y)
      
      // A general element whose type is unknown to us is added to
      // the diagram. Use a generic representation for the element.
          
      let label = @TypeCase(element)
                    NamedElement do element.name().toString() end
                  else element.toString()
                  end then
          node = ElementNode(element.of().pathSeq(),label,x,y) then
          map = @TypeCase(element)
                   NamedElement do NamedElementXNode(element,node) end
                else ElementXNode(element,node) 
                end
      in @WithoutRendering(self.diagram)
           self.add(map);
           diagram.add(node);
           node.new(diagram)
         end
      end
    end

    @Operation elementNodeRemoved(elementNode)
      @Find(map,elementMaps)
        when map.node = elementNode
        do
          self.remove(map);
          self.package.remove(map.element);
          self.diagram.remove(map.node)
      end
    end

    @Operation elementNodeRemovedDaemon(diagram,slot,elementNode)
      self.elementNodeRemoved(elementNode)
    end

    @Operation elementRemoved(element)
      @Find(map,elementMaps)
        when map.element = element
        do self.remove(map);
           map.node.delete()
      end
    end

    @Operation generateDiagram()
      self.toolGroups();
      super();
      diagram.cardLayout(12,200,10,20)
    end
    
    @Operation generateNodes()
      if self.total()
      then
        @For class in package.classes do
          self.classAdded(class);
          @For attribute in class.attributes do
            let type = attribute.underlyingType()
            in if not type.isKindOf(DataType) andthen 
                  not package.classes->includes(type)
               then self.add(type)
               end
            end
          end;
          @For parent in class.parents do
            if not class.defaultParents()->includes(parent) andthen
               not package.classes->includes(parent)
             then self.add(parent)
           end
          end
        end;
        @For package in package.packages do
          self.packageAdded(package);
          @For parent in package.parents do
            if parent.isReallyKindOf(XCore::Package)
            then self.add(parent)
            end
          end
        end
      end
    end

    @Operation generateEdges()
      let classes = self.abstractClassMaps()->collect(map | map.element())
      in
        @For class in classes do
          @For parent in class.parents do
            self.parentAdded(class,parent)
          end;
          @For attribute in class.attributes do
            self.attributeAdded(attribute)
          end
        end
      end;
      @For association in package.contentsOf(Associations::Association)->excluding(null) do
        self.associationAdded(association)
      end;
	  @For associationInstance in package.contentsOf(Associations::AssociationInstance)->excluding(null) do
        self.associationInstanceAdded(associationInstance)
      end;
      @For intrinsicAssociationConstraint in package.contentsOf(Associations::IntrinsicAssociationConstraint)->excluding(null) do
        self.intrinsicAssociationConstraintAdded(intrinsicAssociationConstraint)
      end
    end

    @Operation hotLoaded()
      self.registerWithDiagram(diagram);
      xmf.diagramManager().addDiagram(package,diagram);
      self.checkDaemons();
      self.setGlobalMenu(diagram,Set{package.of(),diagram.of()},false)
    end

    @Operation importMenu()
    
      // Offer all the contents that this package imports.
      
      let importedContents = package.importedContents() then
          sortedImports = importedContents->asSeq.sortNamedElements_CaseIndependent()
      in
        let element = xmf.select("Import","Select a classifier",sortedImports,null,null)
        in
          if element <> null
          then
            self.addDropped(element)
          end
        end
      end

    end
    
    @Operation importAdded_classDiagramDaemon(obj,slot,package)
      if not self.eventFiltered("import added")
      then self.importAdded(package)
      end
    end
    
    @Operation importRemoved_classDiagramDaemon(obj,slot,package)
      self.importRemoved(package)
    end
    
    @Operation importAdded(package)
      self.addImportTray(package)
    end
    
    @Operation importRemoved(package)
      self.deleteImportTray(package)
    end
    
    @Operation inheritanceEdgeAddedDaemon(diagram,slot,inheritanceEdge)
      self.inheritanceEdgeAdded(inheritanceEdge)
    end
    
    @Operation inheritanceEdgeRemovedDaemon(diagram,slot,inheritanceEdge)
      self.inheritanceEdgeRemoved(inheritanceEdge)
    end
    
    @Operation instantiateClassHandler(c,p,m)
    
      // Create a handler for a new button where the element being instantiated is
      // not a meta-class. A few checks are used to see ifwe can meaningfully add
      // the new object to the package...
      
      @Operation(x,y) 
        let instance = try c() catch(exception) try c.new() catch(exception) null end end then
            message = "Do you want to add this element to the contents of package " + p.name() + "?" then
            addToPackage =
            if instance.isReallyKindOf(Contained)
            then xmf.question(message)
            else false
            end
        in if instance <> null
           then 
             if instance.isKindOf(NamedElement)
             then instance.setName(p.newName(c.name().toString()))
             end;
             m.elementAdded(instance,x,y);
             if addToPackage
             then p.add(instance)
             end;
             self.elementChanged()
           end
        end
      end
    end
    
    @Operation dropMenu()
    
      self
      // Drop any classifier into a class diagram by declaring its path.
      // *** to be implemented ***
      
    end

    @Operation inheritMenu()
    
      // Offer all the elements that the package inherits...
      
      let I = package.allContents() - package.contents() then
          I = I->excluding(null) then
          I = I->asSeq->qsort(@Operation(n1,n2) n1.name < n2.name end) then
          element = xmf.select("Inherit","Select a classifier",I,null,null)
      in if element <> null
         then self.add(element)
         end
      end
      
    end

    @Operation inheritanceEdgeAdded(inheritanceEdge)
      self.inheritanceEdgeAdded(inheritanceEdge,classMaps,ClassXInheritanceEdge);
      self.inheritanceEdgeAdded(inheritanceEdge,packageMaps,PackageXInheritanceEdge)
    end

    @Operation inheritanceEdgeAdded(inheritanceEdge,maps,mapClass)
      if self.validEdge(inheritanceEdge)
      then
        @Find(childMap,maps)
          when childMap.node = inheritanceEdge.sourceNode()
          do @Find(parentMap,maps)
               when parentMap.node = inheritanceEdge.targetNode()
               do
                 if self.duplicateInheritanceEdge(inheritanceEdge,childMap,parentMap)
                 then
                   inheritanceEdge.delete()
                 else
                   if not inheritanceMaps->exists(map | map.edge = inheritanceEdge)
                   then
                     let 
                       child = childMap.element();
                       parent = parentMap.element() then
                       inheritanceMap = mapClass(child,parent,inheritanceEdge)
      			     in 
      			       self.add(inheritanceMap);
        			   child.addParent(parent);
                       self.elementChanged()
      			     end
      			   end
                 end
             end
        end
      end
    end

    @Operation inheritanceEdgeRemoved(inheritanceEdge)
      @Find(inheritanceMap,inheritanceMaps)
        when inheritanceMap.edge = inheritanceEdge
        do self.remove(inheritanceMap);
           inheritanceMap.child.removeParent(inheritanceMap.parent)
      end
    end

    @Operation inheritanceSourceChanged(inheritanceMap,newNode)
      self.inheritanceSourceChanged(inheritanceMap,newNode,classMaps);
      self.inheritanceSourceChanged(inheritanceMap,newNode,packageMaps)
    end
    
    @Operation inheritanceSourceChanged(inheritanceMap,newNode,maps)
      @Find(map,maps)
        when map.node = newNode
        do let oldChild = inheritanceMap.child;
               newChild = map.element();
               parent = inheritanceMap.parent
           in  oldChild.removeParent(parent);
               if newChild.of() = parent.of()
               then
                 newChild.addParent(parent);
                 self.elementChanged()
               end
           end
        else
          inheritanceMap.edge.delete()
      end
    end

    @Operation inheritanceTargetChanged(inheritanceMap,newNode)
      self.inheritanceTargetChanged(inheritanceMap,newNode,classMaps);
      self.inheritanceTargetChanged(inheritanceMap,newNode,packageMaps)
    end
    
    @Operation inheritanceTargetChanged(inheritanceMap,newNode,maps)
      @Find(map,maps)
        when map.node = newNode
        do let child = inheritanceMap.child;
               oldParent = inheritanceMap.parent;
               newParent = map.element()
           in  child.removeParent(oldParent);
               if newParent.of() = child.of()
               then
                 child.addParent(newParent);
                 self.elementChanged()
               end
           end
        else
          inheritanceMap.edge.delete()
      end
    end

    @Operation newAttributeName(class):String
      let i = 0
      in @While class.allAttributes()->exists(a | a.name.toString() = ("att" + i.toString())) do
           i := i + 1
         end;
         "att" + i.toString()
      end
    end
    
    @Operation newClassName():String
      let i = 0
      in @While package.classes->exists(c | c.name.toString() = ("Class" + i.toString())) do
           i := i + 1
         end;
         "Class" + i.toString()
      end
    end
    
    @Operation newPackageName():String
      let i = 0
      in @While package.packages->exists(c | c.name.toString() = ("Package" + i.toString())) do
           i := i + 1
         end;
         "Package" + i.toString()
      end
    end

    @Operation nodeExistsFor(element)
      if self.nodeMaps()->exists(map | map.element() = element)
      then true
      else false
      end
    end

    @Operation nodeMaps()
      classMaps + packageMaps + elementMaps + self.docMaps
    end
    
    @Operation noteNodeAdded(element,slot,noteNode)
      if not self.docMaps->exists(map | map.node = noteNode)
      then
        let 
          doc = Doc(noteNode.text.text) then
          map = DocXNote(doc,noteNode,self)
        in
          self.add(map)
        end
      end
    end
    
    @Operation noteNodeRemoved(element,slot,noteNode)
      @Find(map,self.docMaps)
        when map.node = noteNode
        do
           self.remove(map)
      end
    end  
    
    @Operation operationAdded(operation)
      if operation.getProperty("diagramAction",false)
      then self.actionAdded(operation)
      end
    end
    
    @Operation operationRemoved(operation)
      if operation.getProperty("diagramAction",false)
      then self.actionRemoved(operation)
      end
    end 
    
    @Operation operationAdded_classDiagramDaemon(obj,slot,operation)
      if not self.eventFiltered("operation added")
      then self.operationAdded(operation)
      end
    end
    
    @Operation operationRemoved_classDiagramDaemon(obj,slot,operation)
      self.operationRemoved(operation)
    end
    
    @Operation packageAdded(package)
      if not packageMaps->exists(map | map.package = package) and
         not elementMaps->exists(map | map.element = package)
      then
        self.addPackage(package)
      end
    end
    
    @Operation packageDropped(package)
    
      // Since a dropped package can be dropped multiple times it is not
      // necessary to guard the addition of a newly dropped package
      
      self.addPackage(package)
    end
    
    @Operation packageInheritanceMaps():Set(ClassXInheritanceEdge)
      inheritanceMaps->select(m | m.isKindOf(PackageXInheritanceEdge))
    end
    
    @Operation packageNodeAdded(packageNode)
      if not packageMaps->exists(map | map.node = packageNode)
      then
        let 
          name = self.newPackageName() then
          metaClass = packageNode.typePath->ref(Seq{Root,XCore}) then
          package = metaClass(name) then
          map = PackageXNode(package,packageNode,self)
        in
          packageNode.setName(name);
          self.add(map);
          self.package.add(package);
          self.elementChanged()
        end
      end
    end
    
    @Operation packageNodeAddedDaemon(diagram,slot,packageNode)
      self.packageNodeAdded(packageNode)
    end
    
    @Operation packageNodeRemovedDaemon(diagram,slot,packageNode)
      self.packageNodeRemoved(packageNode)
    end
    
    @Operation packageRemoved(package)
      @For map in packageMaps
        when map.package = package
        do 
          self.remove(map);
          map.node.delete()
      end
    end
    
    @Operation packageNodeRemoved(packageNode)
      @Find(map,packageMaps)
        when map.node = packageNode
        do self.remove(map);
           package.remove(map.package);
           self.elementChanged()
      end
    end
    
    @Operation packageAdded_classDiagramDaemon(obj,slot,package)
      if not self.eventFiltered("package added")
      then self.packageAdded(package)
      end
    end
    
    @Operation packageRemoved_classDiagramDaemon(obj,slot,package)
      self.packageRemoved(package)
    end
    
    @Operation parentAdded(parent)
      // Called when a parent has been added to the package...
      self.addMetaTray()
    end
    
    @Operation parentRemoved(parent)
      // Called when a parent has been removed from the package...
      if not package.isMetaPackage()
      then self.deleteMetaTray()
      end
    end
    
    @Operation parentAdded_classDiagramDaemon(obj,slot,parent)
      if not self.eventFiltered("parent added")
      then self.parentAdded(parent)
      end
    end
    
    @Operation parentRemoved_classDiagramDaemon(obj,slot,parent)
      self.parentRemoved(parent)
    end
    
    @Operation parentAdded(child,parent)
      @TypeCase(child)
        XCore::Package do
          self.parentAdded(child,parent,packageMaps,PackageXInheritanceEdge)
        end
        XCore::Class do
          self.parentAdded(child,parent,classMaps,ClassXInheritanceEdge)
        end
      end
    end

    @Operation parentAdded(child,parent,maps,mapClass)
      if not inheritanceMaps->exists(map | map.child = child and map.parent = parent)
      then
        @Find(childMap,maps)
          when childMap.element() = child
          do @Find(parentMap,maps)
               when parentMap.element() = parent
               do
                 let 
                   edge = diagram.makeInheritance(childMap.node,parentMap.node) then
                   map = mapClass(child,parent,edge)
                 in
                   self.add(map);
                   self.diagram.add(edge)
      			 end
             end
        end
      end
    end

    @Operation parentRemoved(child,parent)
      @Find(inheritanceMap,inheritanceMaps)
        when inheritanceMap.child = child and inheritanceMap.parent = parent
        do 
          self.remove(inheritanceMap);
          inheritanceMap.edge.delete()
      end
    end

    @Operation refreshToolGroups()
      diagram.commandInterpreter().clearToolPaletteCommand(diagram);
      diagram.defineToolGroups();
      self.toolGroups()
    end

    @Operation remove(element)
      @TypeCase(element)
        AssociationXAssociationEdge do
          self.deleteFromAssociationMaps(element);
          element.removeDaemons()
        end 
        AssociationInstanceXAssociationInstanceEdge do
          self.deleteFromAssociationInstanceMaps(element);
          element.removeDaemons()
        end
        IntrinsicAssociationConstraintXIntrinsicAssociationConstraintEdge do
          self.deleteFromIntrinsicAssociationConstraintMaps(element);
          element.removeDaemons()
        end 
        ClassXNode do
          self.deleteFromClassMaps(element);
          element.removeDaemons()
        end
        ClassifierXInheritanceEdge do
          self.deleteFromInheritanceMaps(element);
          element.removeDaemons()
        end
        AttributeXAttributeEdge do
          self.deleteFromAttributeMaps(element);
          element.removeDaemons()
        end
        ContainerXContainsEdge do
          self.deleteFromContainerMaps(element);
          element.removeDaemons()
        end
        DependencyXDependencyEdge do
          self.deleteFromDependencyMaps(element);
          element.removeDaemons()
        end
        DelegationXDelegationEdge do
          self.deleteFromDelegationMaps(element);
          element.removeDaemons()
        end
        PackageXNode do
          self.deleteFromPackageMaps(element);
          element.removeDaemons()
        end
        ElementXNode do
          self.deleteFromElementMaps(element);
          element.removeDaemons()
        end
        DocXNote do
          self.deleteFromDocMaps(element);
          element.removeDaemons()
        end        
        else format(stdout,"PackageXClassDiagram::remove: unknown element " + element.toString())
      end
    end

    @Operation removeDaemonCollection(seq:Seq(Element))
      @For element in seq do
        element.removeDaemons()
      end
    end

    @Operation removeDaemons()
      super();
      diagram.removeDaemonsWithTarget(self,true);
      package.removeDaemonsWithTarget(self,true);
      self.removeDaemonCollection(self.classMaps);
      self.removeDaemonCollection(self.packageMaps);
      self.removeDaemonCollection(self.docMaps);
      self.removeDaemonCollection(self.elementMaps);
      self.removeDaemonCollection(self.inheritanceMaps);
      self.removeDaemonCollection(self.attributeMaps);
      self.removeDaemonCollection(self.containerMaps);
      self.removeDaemonCollection(self.dependencyMaps);
      self.removeDaemonCollection(self.associationMaps)
    end

    @Operation renew()
      // Called when the diagram is to be regenerated from existing components
      // such as after it is loaded from a file.
      diagram.renew();
      self.refreshToolGroups()
    end
    
    @Operation save()
    
      // Save the mapping independent of the model elements that it maps.
      // To save the model elements the mapping should be part of a project
      // which contains (references to) both the model element and the
      // mapping.
      
      let file = xmf.saveFile(xmf.projDir(),".dgm")
      in if file <> ""
         then
           xmf.clientManager().setSaving(true);
           let excludedNameSpaces = Root.allContentsOf(XCore::Package)->including(Root)->asSeq;
               out = ElementOutputChannel(GZipOutputChannel(FileOutputChannel(file)))
           in xmf.clientManager().preSave();
              out.write(self,excludedNameSpaces);
              out.close();
              xmf.clientManager().postSave();
              xmf.clientManager().setSaving(false)
           end
         end
      end
              
    end

    @Operation setElementAdded(object,slot,newValue)
      // Called when a monitored object's slot is updated where the type of the
      // slot is a collection. Currently do nothing, but it should mimic the behaviour
      // of SnapshotXSnapshotDiagram.
      object
    end
    
    @Operation setElementRemoved(object,slot,newValue)
      // Called when a monitored object's slot is updated where the type of the
      // slot is a collection. Currently do nothing, but it should mimic the behaviour
      // of SnapshotXSnapshotDiagram.
      object
    end
    
    @Operation slotValueChanged(object,slot,newValue)
      // Called when an object changes value. The simple
      // valued slots in objects handle themselves via
      // ObjectXNode. However this will get called when
      // an edge between objects changes.
      object
    end
    
    @Operation XCoreToolGroups()
      diagram.defineNewHandler("XCore","Attribute (String)",false,"XCore/DataType.gif",PackageXClassDiagram::defaultSimpleAttribute(self,String));
      diagram.defineNewHandler("XCore","Attribute (Integer)",false,"XCore/DataType.gif",PackageXClassDiagram::defaultSimpleAttribute(self,Integer));
      diagram.defineNewHandler("XCore","Attribute (Boolean)",false,"XCore/DataType.gif",PackageXClassDiagram::defaultSimpleAttribute(self,Boolean));
      diagram.defineNewHandler("XCore","Attribute (Float)",false,"XCore/DataType.gif",PackageXClassDiagram::defaultSimpleAttribute(self,Float))
    end
    
    @Operation defaultSimpleAttribute(map:PackageXClassDiagram,type:Classifier)
      @Operation(x,y)
        map.newSimpleAttribute(x,y,type)
      end
    end
    
    @Operation newSimpleAttribute(x,y,type:Classifier)
      @Find(map,classMaps) when map.node.contains(x,y) do
        map.class.add(Attribute(map.class.newName("att"),type))
      end
    end

    @Operation toolGroups()
    
      // Add tool groups for the sub-classes of the key elements
      // on a class diagram. Calculate all the sub-classes of
      // class diagram element classes defined by the meta-package
      // of the package controlled by the diagram. Each sub-class
      // corresponds to a stereotype that creates a standard class
      // diagram component tagged with the << and >> labels.
      
      let languageName = package.metaPackage().name.toString();
      
          // allContents returns a set; iterating over a large set is *very* expensive.
          // The following code has been changed to the equivalent loop with side effects.
          
          //allContents = package.metaPackage().allContents() then
          //classes = 
          //  allContents
          //    ->select(c | c.isKindOf(XCore::Class))
          //    ->excluding(null)
          //    ->reject(c | c.owner() = XCore or c.isAbstract) then
          //dependencyToolGroups = classes->select(c | c.inheritsFrom(XCore::Dependency));
          //classToolGroups = classes->select(c | c.inheritsFrom(XCore::Class) and not c.inheritsFrom(XCore::Package));
          //packageToolGroups = classes->select(c | c.inheritsFrom(XCore::Package));
          //attributeToolGroups = classes->select(c | c.inheritsFrom(XCore::Attribute)) then
          //otherToolGroups = classes - (dependencyToolGroups + classToolGroups + packageToolGroups + attributeToolGroups)
          
          dependencyToolGroups = Seq{};
          classToolGroups = Seq{};
          packageToolGroups = Seq{};
          attributeToolGroups = Seq{};
          otherToolGroups = Seq{}
      in 
         @For e inTableValues package.metaPackage().contents do
           if e.isReallyKindOf(XCore::Class) andthen (e.owner() <> XCore and not e.isAbstract)
           then 
             if e.inheritsFrom(XCore::Dependency)
             then dependencyToolGroups := Seq{e | dependencyToolGroups}
             elseif e.inheritsFrom(XCore::Class) and not e.inheritsFrom(XCore::Package)
             then classToolGroups := Seq{e | classToolGroups}
             elseif e.inheritsFrom(XCore::Package)
             then packageToolGroups := Seq{e | packageToolGroups}
             elseif e.inheritsFrom(XCore::Attribute)
             then attributeToolGroups := Seq{e | attributeToolGroups}
             else otherToolGroups := Seq{e | otherToolGroups}
             end
           end
         end;

         // If the package is a meta-package then we want to allow instances of
         // the meta-classes to be created on the diagram...

         // self.addMetaTray();
         
         // Assume that all class diagrams have an XCore tray and add in the default
         // tools that come with that language...
         
         self.XCoreToolGroups();
      
         // Any toggles that need access to the mapping...
         
         self.defineToggles();
         
         // Any actions that require access to the mapping...
         
         self.defineActions();
     
         // If there are any sub-classes of the standard model elements for a class
         // diagram then we need a stereotypes node group to create them...
      
         if not (dependencyToolGroups->isEmpty and
                 packageToolGroups->isEmpty and 
                 classToolGroups->isEmpty and 
                 attributeToolGroups->isEmpty)
         then diagram.defineToolGroup(languageName)
         end;
         
         self.addImportTrays();

         // Add in a catch all element creator that will offer all model element
         // types in the meta-package via a selection list.
         
         if xmf.preference("EnableMeta")
         then
           diagram.defineNewHandler(
             "XCore",
             "Object",
             false,
             "XCore/Other.gif",
             let 
               p = self.package;
               m = self 
             in
               @Operation(x,y)
                 m.dropOtherNode( x,y,p.metaPackage().allClasses()
                   ->select(c | not c.isAbstract)
                   - Set{// the following cannot be created by raw instantiation
                         // or cannot supported by class diagrams...
                         BasicArray,Bind,Buffer,Classifier,CodeBox,Collection,
                         CompiledOperation,Constructor,Daemon,Doc,Exception,
                         ForeignOperation,InitialisedAttribute,InterpretedOperation,
                         MachineException,Operation,Parameter,Seq,Set,Snapshot } )
               end
             end)
         end;

         // Add in the stereotype creation buttons...
         
         @For c in packageToolGroups do
           let handler = 
                 @Operation(x,y) 
                   self.newPackageNode(x,y,c.pathSeq())
                 end
           in diagram.defineNewHandler(
                languageName,
                c.name.toString(),
                false,
                "XCore/Package.gif",
                handler)
           end
         end;
         @For c in classToolGroups do
           let handler(x,y) = self.newClassNode(x,y,c.pathSeq())
           in diagram.defineNewHandler(
                languageName,
                c.name.toString(),
                false,
                "XCore/Class.gif",
                handler)
           end
         end;
         @For c in attributeToolGroups do
           let handler(sourcePort,targetPort) = self.newAttributeEdge(sourcePort,targetPort,c.pathSeq());
               selfHandler(x,y) = self.newSelfAttributeEdge(x,y,c.pathSeq())
           in diagram.defineNewHandler(
                languageName,
                c.name.toString(),
                true,
                "XCore/Attribute.gif",
                handler);
              diagram.defineNewHandler(
                languageName,
                c.name.toString() + " (self)",
                false,
                "XCore/Attribute.gif",
                handler) 
           end
         end;
         @For c in dependencyToolGroups do
           let handler(sourcePort,targetPort) = self.newDependencyEdgeCommand(sourcePort,targetPort,c.pathSeq())
           in diagram.defineNewHandler(
                languageName,
                c.name.toString(),
                true,
                "XCore/Dependency.gif",
                handler)
           end
         end;
         @For c in otherToolGroups do
           let p = self.package;
               m = self then
               handler = self.instantiateClassHandler(c,p,m)
           in diagram.defineNewHandler(
                languageName,
                c.name.toString(),
                false,
                "XCore/Object.gif",
                handler)
           end
         end
       end
    end

    @Operation element()
      package
    end

    @Operation diagram()
      diagram
    end

    @Operation subMaps()
      self.classMaps +
      self.packageMaps +
      self.docMaps +
      self.elementMaps +
      self.inheritanceMaps +
      self.attributeMaps +
      self.containerMaps +
      self.dependencyMaps +
      self.associationMaps
    end
    
    @Operation setToPartialSyncMode()
      super();
      self.addEventFilter("class added",ElementXDiagram::defaultEventFilterHandler);
      self.addEventFilter("package added",ElementXDiagram::defaultEventFilterHandler)
    end
    
    @Operation setToTotalSyncMode()
      super();
      self.removeEventFilter("class added");
      self.removeEventFilter("package added")
    end

    @Operation missingPackageContents()
      let packageClasses = package.classes;
          packagePackages = package.packages then
          diagramClasses = classMaps->collect(m | m.class)->asSet;
          diagramPackages = packageMaps->collect(m | m.package)->asSet then
          missingClasses = packageClasses - diagramClasses;
          missingPackages = packagePackages - diagramPackages
      in
          missingClasses + missingPackages
      end
    end
    
    @Operation addMissingContents()
      let missingContents = self.missingPackageContents()
      in
        if not missingContents->isEmpty
        then
          let elementSeq = missingContents->asSeq.sortNamedElements_CaseIndependent();
              stringOp = 
                @Operation(element)
                  element.nameString() + " : " + element.of().nameString()
                end then
              elements = xmf.selects("Add Missing Package Contents",
                                     "Select package contents to add to this diagram",
                                     elementSeq,
                                     null,
                                     stringOp)
          in
            if elements <> 0-1
            then
              @For e in elements do
                self.addDropped(e)
              end
            end
          end
        else
          xmf.message("All package contents are already shown in the diagram.")
        end
      end
    end

    @Operation handleDiagramEvent(diagram,event)
      super(diagram,event);
      let eventType = event->at(0)
      in
        @Case eventType of
          "add missing contents" do self.addMissingContents() end
        else self
        end
      end
    end
    
    @Operation validEdge(edge)
      let
        type = edge.of(); 
        source = edge.source.owner;
        target = edge.target.owner
      in
        @Case type of
          [ContainsEdge] do
            if source.isKindOf(NoteNode) or target.isKindOf(NoteNode)
            then
              edge.delete();
              false
            else
              true
            end
          end
          [AssociationEdge] do
            if source.isKindOf(NoteNode) or target.isKindOf(NoteNode)
            then
              edge.delete();
              false
            else
              true
            end
          end
          else true
        end
      end
    end
    
    @Operation updateToolGroup(group)
    	false // This Operation is defined in the Multilevel Add-On, but used in the main program. It has not funtion then anyway.
    end
    
  end}
Local(3): 1
Local(4): 3
Local(5): 3
Local(6): m
Local(7): message
Local(8): args
Local(9): null
Local(10): null
Local(11): null
Source Code:
    try
      let m : XCore::Element = Kernel_read(owner.name)
      in let message : XCore::Element = m->at(0).asSymbol();
             args : XCore::Element = Seq{}
         in self.debug("Event ~S~%",Seq{m});
            @Count i from 1 to m->size do
              args := args + Seq{m->at(i)}
            end;
            self.processEvent(message,args)
         end
      end
    catch(exception)
      xmf.raise(exception)
    end
constant(0) = Array(m,message,args,i)
constant(1) = 'owner'
constant(2) = 'name'
constant(3) = 'asSymbol'
constant(4) = Event ~S~%
constant(5) = 'debug'
constant(6) = 'processEvent'
----------------------------------------------------------------------------------------------------


----------------------------------------------------------------------------------------------------
Called(48): EventHandler::readEvent at line 75 char 0
Self: TextEventHandler[fields=roleFiller,owner,input,debug,calls,thread]
Supers: readEvent,callSelf,call,start,debug,find,debug,toString,dispatchEvent,deleteFromCalls,addToCalls,delete_client_check,delete_client,removeFromOwner,setOwner,addTo,allOwners,deleteRecursive,owner,getDefaultClipboardSource,delete_client_redirect,oldEdit,edit,getChildren,getChildrenSlots,orderSequence,removeDiagramListeners,getDiagramListeners,nodeEvent,getAvailableMappings,propertyTarget,slotMissing,synchronise,slotDenied,setProperty,setHotLoad,setDaemonsActive,setDaemons,set,renameSlot,removeStructuralFeature,removeDaemonsWithTarget,removeDaemonsWithId,removeDaemonNamed,removeDaemon,machineInit,initSlots,init,hotLoaded,hotLoad,hasSlot,hasProperty,getProperties,getProperty,get,hasStructuralFeature,getStructuralFeatureNames,hasDaemonWithTarget,hasDaemonWithIdAndTarget,hasDaemonWithId,hasDaemonNamed,fire,destroyDaemon,daemonWithIdAndTarget,daemonWithId,daemonNamed,daemonsActive,daemons,allDaemonsWithTarget,allDaemonsWithId,compositeValues,allCompositeValuesAndSelf,allCompositeValues,addStructuralFeature,addPersistentDaemon,addMultiDaemon,addDaemon,slots,addMissingSlot,slotMissing,applyMapping_client,changedOnDiagram,addDiagramListener,removeDiagramListener,getDiagramListenerNamed,orderSequence,calcChildrenSlots,getChildrenToolTips,observeBy,observeBy,observedBy,observedBy,ignoreBy,ignoreByAll,saveXTO,saveXTOFile,showDiagram,showAndLayoutDiagram,toSVG,graphVizNode,getChildren,showModelBrowserNode,invokeOp,edit_redirect,assignToGlobal,pasteFromClipboard,copyToClipboard,cutToClipboard,getDefaultClipboardSource,legalSlotChangeCheck,deployXML,selectDiagram,createDiagramType,createDiagram,doubleClick,slotAffectsLabel,labelString,pprint,pprint,pprint,pprintln,toType,writeXMLFile,writeXML,lift,toSnapshot,toSnapshot,allHTMLEntries,allHTMLPackages,toHTML,writeHTML,writeHTML,writeHTMLAllEntries,writeHTMLAllPackages,writeHTMLIndex,writeHTMLOverview,yield,toString,systemId,setRoleFillerDialog,setOf,send,save2,save,removeDaemon,removeDaemon,println,print,oclIsKindOf,oclIsTypeOf,setDelegation,noOperationFound,isTypeOf,isReallyKindOf,init,init,of,isKindOf,addTo,checkConstraints,copy,deleteRecursive,die,equals,error,ferror,hashCode,isWithinNameSpace,isProtected,isViewProtected,isDeleteProtected,nameString,doc,edit,createDiagramType,createDiagramType,showAndLayoutDiagram,legalSlotChangeCheck,legalNameChangeCheck,getDefaultClipboardTarget,cutToClipboard_transaction,copyToClipboard_transaction,assignToGlobal,browse_redirect,evaluateExpression,selectModelBrowserNode,browse,getChildrenToolTips,createTool,showDiagram,oldShowDiagram,populateGraphViz
Source Code:
    @Operation readEvent():XCore::Element
      try
        let m : XCore::Element = Kernel_read(owner.name)
        in let message : XCore::Element = m->at(0).asSymbol();
               args : XCore::Element = Seq{}
           in self.debug("Event ~S~%",Seq{m});
              @Count i from 1 to m->size do
                args := args + Seq{m->at(i)}
              end;
              self.processEvent(message,args)
           end
        end
      catch(exception)
        xmf.raise(exception)
      end
    end
constant(0) = Array()
constant(1) = Seq{Seq{exception,Seq{2,Seq{'XCore','Element'}}},Seq{2,Seq{'XCore','Element'}},Seq{'parserImports'}}
constant(2) = CodeBox('anonymous',0,Code(<Unknown instruction 109>,LOCAL 0,<Unknown instruction 109>,DYNAMIC(1) 'xmf',TAILSEND 1 'raise',RETURN,RETURN))
constant(3) = 'anonymous'
constant(4) = CodeBox('anonymous',6,Code(<Unknown instruction 109>,<Unknown instruction 109>,DYNAMIC(1) 'owner',DOT 'name',READ,SETLOCPOP 0,UNBINDDYN Array(m,message,args,i),<Unknown instruction 109>,MKSEQ 0,STARTCALL,<Unknown instruction 109>,PUSHINT 0,<Unknown instruction 109>,LOCAL 0,AT,SEND 0 'asSymbol',SETLOCPOP 1,SETLOCPOP 2,UNBINDDYN Fun('varType'),UNBINDDYN prepareStartElement,STARTCALL,<Unknown instruction 109>,PUSHSTR Event ~S~%,<Unknown instruction 109>,<Unknown instruction 109>,LOCAL 0,MKSEQ 1,SENDSELF 2 'debug',POP,<Unknown instruction 109>,<Unknown instruction 109>,LOCAL 0,SIZE,<Unknown instruction 109>,PUSHINT 1,SETLOCPOP 3,SETLOCPOP 4,<Unknown instruction 109>,<Unknown instruction 109>,LOCAL 3,SETLOCPOP 5,UNBINDDYN Seq{Seq{'charEnd'|0},Seq{'charStart'|0},Seq{'endLine'|0},Seq{'line'|0},Seq{'operator'|Path[fields=roleFiller,charEnd,charStart,endLine,line,root,names]},Seq{'args',Var[fields=roleFiller,charEnd,charStart,endLine,line,name,sourceSet,lineCount,charCount],Var[fields=roleFiller,charEnd,charStart,endLine,line,name,sourceSet,lineCount,charCount],Self[fields=roleFiller,charEnd,charStart,endLine,line]}},LOCAL 5,<Unknown instruction 109>,LOCAL 4,LESS,SKPF 16,<Unknown instruction 109>,LOCAL 2,<Unknown instruction 109>,<Unknown instruction 109>,LOCAL 5,<Unknown instruction 109>,LOCAL 0,AT,MKSEQ 1,ADD,SETLOC 2,POP,INCLOCAL 5,POP,<Unknown instruction 109>,SKPBACK 20,PUSHTRUE,<Unknown instruction 108>,POP,STARTCALL,<Unknown instruction 109>,LOCAL 1,<Unknown instruction 109>,LOCAL 2,SENDSELF 2 'processEvent',<Unknown instruction 108>,<Unknown instruction 108>,<Unknown instruction 108>,RETURN,RETURN))
----------------------------------------------------------------------------------------------------


----------------------------------------------------------------------------------------------------
Called(36): EventHandler::start at line 37 char 0
Self: TextEventHandler[fields=roleFiller,owner,input,debug,calls,thread]
Supers: start,debug,find,debug,toString,dispatchEvent,deleteFromCalls,addToCalls,delete_client_check,delete_client,removeFromOwner,setOwner,addTo,allOwners,deleteRecursive,owner,getDefaultClipboardSource,delete_client_redirect,oldEdit,edit,getChildren,getChildrenSlots,orderSequence,removeDiagramListeners,getDiagramListeners,nodeEvent,getAvailableMappings,propertyTarget,slotMissing,synchronise,slotDenied,setProperty,setHotLoad,setDaemonsActive,setDaemons,set,renameSlot,removeStructuralFeature,removeDaemonsWithTarget,removeDaemonsWithId,removeDaemonNamed,removeDaemon,machineInit,initSlots,init,hotLoaded,hotLoad,hasSlot,hasProperty,getProperties,getProperty,get,hasStructuralFeature,getStructuralFeatureNames,hasDaemonWithTarget,hasDaemonWithIdAndTarget,hasDaemonWithId,hasDaemonNamed,fire,destroyDaemon,daemonWithIdAndTarget,daemonWithId,daemonNamed,daemonsActive,daemons,allDaemonsWithTarget,allDaemonsWithId,compositeValues,allCompositeValuesAndSelf,allCompositeValues,addStructuralFeature,addPersistentDaemon,addMultiDaemon,addDaemon,slots,addMissingSlot,slotMissing,applyMapping_client,changedOnDiagram,addDiagramListener,removeDiagramListener,getDiagramListenerNamed,orderSequence,calcChildrenSlots,getChildrenToolTips,observeBy,observeBy,observedBy,observedBy,ignoreBy,ignoreByAll,saveXTO,saveXTOFile,showDiagram,showAndLayoutDiagram,toSVG,graphVizNode,getChildren,showModelBrowserNode,invokeOp,edit_redirect,assignToGlobal,pasteFromClipboard,copyToClipboard,cutToClipboard,getDefaultClipboardSource,legalSlotChangeCheck,deployXML,selectDiagram,createDiagramType,createDiagram,doubleClick,slotAffectsLabel,labelString,pprint,pprint,pprint,pprintln,toType,writeXMLFile,writeXML,lift,toSnapshot,toSnapshot,allHTMLEntries,allHTMLPackages,toHTML,writeHTML,writeHTML,writeHTMLAllEntries,writeHTMLAllPackages,writeHTMLIndex,writeHTMLOverview,yield,toString,systemId,setRoleFillerDialog,setOf,send,save2,save,removeDaemon,removeDaemon,println,print,oclIsKindOf,oclIsTypeOf,setDelegation,noOperationFound,isTypeOf,isReallyKindOf,init,init,of,isKindOf,addTo,checkConstraints,copy,deleteRecursive,die,equals,error,ferror,hashCode,isWithinNameSpace,isProtected,isViewProtected,isDeleteProtected,nameString,doc,edit,createDiagramType,createDiagramType,showAndLayoutDiagram,legalSlotChangeCheck,legalNameChangeCheck,getDefaultClipboardTarget,cutToClipboard_transaction,copyToClipboard_transaction,assignToGlobal,browse_redirect,evaluateExpression,selectModelBrowserNode,browse,getChildrenToolTips,createTool,showDiagram,oldShowDiagram,populateGraphViz
Source Code:
    @Operation start():XCore::Element
      self.thread := xmf.thread();
      @While true do
        self.readEvent()
      end
    end
constant(0) = Array()
constant(1) = 'xmf'
constant(2) = 'thread'
constant(3) = 'readEvent'
----------------------------------------------------------------------------------------------------


----------------------------------------------------------------------------------------------------
Called(24): XMF::anonymous at line 21 char 0
Self: Fun('anonymous')
Supers: anonymous,killProgressDialogs,busy,progress,selects,select,pathToElement,pathToElement,treeSequenceToStrings,treeSelection,selectDirectory,saveFile,openFile,input,confirm,questionYesNoCancel,questionYesOnly,question,homeDir,setHomeDir,setDocDir,buildDate,version,setVersion,user,setUser,standardOutput,setStandardOutput,initFile,setInitFile,imageDir,setImageDir,startupArgs,setStartupArgs,banner,setBanner,handles,toString,getConfigProperty,getConfigArg,getTmpDir,delay,basicBanner,bootDir,browser,browsedDirectories,canonicalPath,canonicalHomeDir,canUndo,canRedo,choose,clearClassLoader,clientHandler,clientNamed,date,date,definePreference,dialogsClient,editHomeFile,endUndoable,ensureHeap,exec,extendHeap,foreignTypeMapping,foreignMOPMapping,forwardRefs,gc,gc2,gc2heap,getHandle,load,hasClientHandler,hasPreference,heapSize,inflate,info,isFirstVersionLater,isValidVersion,javaClass,javaClass,needsGC,machine,memory,mineForwardRefs,newListeners,newListenersFor,pathRelativeToHome,preference,raise,redo,registerClientHandler,removeClientHandler,reportError,resolveRefs,saveDir,saveInflater,saveState,setClassLoader,setPreference,setReady,startUndoable,sleep,textArea,thread,threads,undo,usedHeap,warning,xmf,undoEngine,manifestManager,setManifestManager,projectManager,projectManager,setProjectManager,clientManager,debug,monitorClientCommunications,silentClientCommunications,findClient,findClientByName,getAllClients,bootEnterprise,bootMosaic,saveImage,saveImage,saveImageAndInflater,bootMenus,bootConsole,bootUndo,bootPropertyEditor,bootBrowser,bootDiagrams,bootDialogs,dialogClient,getColor,getColor,getFont,message,warning,errorMessage,openFile,errorMessageWithText,multiSelectTreeDialog,order,order2,saveFile,busy,getString,getBoolean,getFloat,getInteger,getClassifier,getExp,textClient,browseUsing,browse,clipboard,chooseFont,suppressModelBrowserNodeExpansion,registry,menuRegistryHandler,fileEditorManager,toolManager,toolBrowser,enableToolDefinitionMenuUpgrader,disableToolDefinitionMenuUpgrader,projDir,demoDir,setProperty,property,properties,hasProperty,oldEdit,edit,getChildren,getChildrenSlots,orderSequence,removeDiagramListeners,getDiagramListeners,nodeEvent,getAvailableMappings,propertyTarget,slotMissing,synchronise,slotDenied,setProperty,setHotLoad,setDaemonsActive,setDaemons,set,renameSlot,removeStructuralFeature,removeDaemonsWithTarget,removeDaemonsWithId,removeDaemonNamed,removeDaemon,machineInit,initSlots,init,hotLoaded,hotLoad,hasSlot,hasProperty,getProperties,getProperty,get,hasStructuralFeature,getStructuralFeatureNames,hasDaemonWithTarget,hasDaemonWithIdAndTarget,hasDaemonWithId,hasDaemonNamed,fire,destroyDaemon,daemonWithIdAndTarget,daemonWithId,daemonNamed,daemonsActive,daemons,allDaemonsWithTarget,allDaemonsWithId,compositeValues,allCompositeValuesAndSelf,allCompositeValues,addStructuralFeature,addPersistentDaemon,addMultiDaemon,addDaemon,slots,addMissingSlot,slotMissing,applyMapping_client,changedOnDiagram,addDiagramListener,removeDiagramListener,getDiagramListenerNamed,orderSequence,calcChildrenSlots,getChildrenToolTips,observeBy,observeBy,observedBy,observedBy,ignoreBy,ignoreByAll,saveXTO,saveXTOFile,showDiagram,showAndLayoutDiagram,toSVG,graphVizNode,getChildren,showModelBrowserNode,invokeOp,edit_redirect,assignToGlobal,pasteFromClipboard,copyToClipboard,cutToClipboard,getDefaultClipboardSource,legalSlotChangeCheck,deployXML,selectDiagram,createDiagramType,createDiagram,doubleClick,slotAffectsLabel,labelString,pprint,pprint,pprint,pprintln,toType,writeXMLFile,writeXML,lift,toSnapshot,toSnapshot,allHTMLEntries,allHTMLPackages,toHTML,writeHTML,writeHTML,writeHTMLAllEntries,writeHTMLAllPackages,writeHTMLIndex,writeHTMLOverview,yield,toString,systemId,setRoleFillerDialog,setOf,send,save2,save,removeDaemon,removeDaemon,println,print,oclIsKindOf,oclIsTypeOf,setDelegation,noOperationFound,isTypeOf,isReallyKindOf,init,init,of,isKindOf,addTo,checkConstraints,copy,deleteRecursive,die,equals,error,ferror,hashCode,isWithinNameSpace,isProtected,isViewProtected,isDeleteProtected,nameString,doc,edit,createDiagramType,createDiagramType,showAndLayoutDiagram,legalSlotChangeCheck,legalNameChangeCheck,getDefaultClipboardTarget,cutToClipboard_transaction,copyToClipboard_transaction,assignToGlobal,browse_redirect,evaluateExpression,selectModelBrowserNode,browse,getChildrenToolTips,createTool,showDiagram,oldShowDiagram,populateGraphViz
Source Code:
    try
      textClient.start()
    catch(exception)
      format(stdout,"~S~%",Seq{exception})
    end
constant(0) = Array()
constant(1) = 'start'
----------------------------------------------------------------------------------------------------


----------------------------------------------------------------------------------------------------
Called(12): XMF::anonymous at line 75 char 0
Self: Fun('anonymous')
Supers: anonymous,killProgressDialogs,busy,progress,selects,select,pathToElement,pathToElement,treeSequenceToStrings,treeSelection,selectDirectory,saveFile,openFile,input,confirm,questionYesNoCancel,questionYesOnly,question,homeDir,setHomeDir,setDocDir,buildDate,version,setVersion,user,setUser,standardOutput,setStandardOutput,initFile,setInitFile,imageDir,setImageDir,startupArgs,setStartupArgs,banner,setBanner,handles,toString,getConfigProperty,getConfigArg,getTmpDir,delay,basicBanner,bootDir,browser,browsedDirectories,canonicalPath,canonicalHomeDir,canUndo,canRedo,choose,clearClassLoader,clientHandler,clientNamed,date,date,definePreference,dialogsClient,editHomeFile,endUndoable,ensureHeap,exec,extendHeap,foreignTypeMapping,foreignMOPMapping,forwardRefs,gc,gc2,gc2heap,getHandle,load,hasClientHandler,hasPreference,heapSize,inflate,info,isFirstVersionLater,isValidVersion,javaClass,javaClass,needsGC,machine,memory,mineForwardRefs,newListeners,newListenersFor,pathRelativeToHome,preference,raise,redo,registerClientHandler,removeClientHandler,reportError,resolveRefs,saveDir,saveInflater,saveState,setClassLoader,setPreference,setReady,startUndoable,sleep,textArea,thread,threads,undo,usedHeap,warning,xmf,undoEngine,manifestManager,setManifestManager,projectManager,projectManager,setProjectManager,clientManager,debug,monitorClientCommunications,silentClientCommunications,findClient,findClientByName,getAllClients,bootEnterprise,bootMosaic,saveImage,saveImage,saveImageAndInflater,bootMenus,bootConsole,bootUndo,bootPropertyEditor,bootBrowser,bootDiagrams,bootDialogs,dialogClient,getColor,getColor,getFont,message,warning,errorMessage,openFile,errorMessageWithText,multiSelectTreeDialog,order,order2,saveFile,busy,getString,getBoolean,getFloat,getInteger,getClassifier,getExp,textClient,browseUsing,browse,clipboard,chooseFont,suppressModelBrowserNodeExpansion,registry,menuRegistryHandler,fileEditorManager,toolManager,toolBrowser,enableToolDefinitionMenuUpgrader,disableToolDefinitionMenuUpgrader,projDir,demoDir,setProperty,property,properties,hasProperty,oldEdit,edit,getChildren,getChildrenSlots,orderSequence,removeDiagramListeners,getDiagramListeners,nodeEvent,getAvailableMappings,propertyTarget,slotMissing,synchronise,slotDenied,setProperty,setHotLoad,setDaemonsActive,setDaemons,set,renameSlot,removeStructuralFeature,removeDaemonsWithTarget,removeDaemonsWithId,removeDaemonNamed,removeDaemon,machineInit,initSlots,init,hotLoaded,hotLoad,hasSlot,hasProperty,getProperties,getProperty,get,hasStructuralFeature,getStructuralFeatureNames,hasDaemonWithTarget,hasDaemonWithIdAndTarget,hasDaemonWithId,hasDaemonNamed,fire,destroyDaemon,daemonWithIdAndTarget,daemonWithId,daemonNamed,daemonsActive,daemons,allDaemonsWithTarget,allDaemonsWithId,compositeValues,allCompositeValuesAndSelf,allCompositeValues,addStructuralFeature,addPersistentDaemon,addMultiDaemon,addDaemon,slots,addMissingSlot,slotMissing,applyMapping_client,changedOnDiagram,addDiagramListener,removeDiagramListener,getDiagramListenerNamed,orderSequence,calcChildrenSlots,getChildrenToolTips,observeBy,observeBy,observedBy,observedBy,ignoreBy,ignoreByAll,saveXTO,saveXTOFile,showDiagram,showAndLayoutDiagram,toSVG,graphVizNode,getChildren,showModelBrowserNode,invokeOp,edit_redirect,assignToGlobal,pasteFromClipboard,copyToClipboard,cutToClipboard,getDefaultClipboardSource,legalSlotChangeCheck,deployXML,selectDiagram,createDiagramType,createDiagram,doubleClick,slotAffectsLabel,labelString,pprint,pprint,pprint,pprintln,toType,writeXMLFile,writeXML,lift,toSnapshot,toSnapshot,allHTMLEntries,allHTMLPackages,toHTML,writeHTML,writeHTML,writeHTMLAllEntries,writeHTMLAllPackages,writeHTMLIndex,writeHTMLOverview,yield,toString,systemId,setRoleFillerDialog,setOf,send,save2,save,removeDaemon,removeDaemon,println,print,oclIsKindOf,oclIsTypeOf,setDelegation,noOperationFound,isTypeOf,isReallyKindOf,init,init,of,isKindOf,addTo,checkConstraints,copy,deleteRecursive,die,equals,error,ferror,hashCode,isWithinNameSpace,isProtected,isViewProtected,isDeleteProtected,nameString,doc,edit,createDiagramType,createDiagramType,showAndLayoutDiagram,legalSlotChangeCheck,legalNameChangeCheck,getDefaultClipboardTarget,cutToClipboard_transaction,copyToClipboard_transaction,assignToGlobal,browse_redirect,evaluateExpression,selectModelBrowserNode,browse,getChildrenToolTips,createTool,showDiagram,oldShowDiagram,populateGraphViz
Source Code:
    try
      try
        textClient.start()
      catch(exception)
        format(stdout,"~S~%",Seq{exception})
      end
    catch(exception)
      xmf.raise(exception);
      Kernel_die()
    end
constant(0) = Array()
constant(1) = Seq{Seq{exception,Seq{2,Seq{'XCore','Element'}}},Seq{2,Seq{'XCore','Element'}},Seq{'parserImports'}}
constant(2) = CodeBox('anonymous',1,Code(<Unknown instruction 109>,<Unknown instruction 109>,DYNAMIC(1) 'stdout',SETLOCPOP 1,UNBINDDYN Array(formatOut),STARTCALL,PUSHSTR ,SENDLOCAL 1 'writeString'1,POP,STARTCALL,<Unknown instruction 109>,LOCAL 0,<Unknown instruction 101>,SENDLOCAL 1 'writeString'1,POP,STARTCALL,PUSHSTR ,SENDLOCAL 1 'writeString'1,POP,STARTCALL,PUSHINT 10,SENDLOCAL 1 'write'1,POP,PUSHSTR ,<Unknown instruction 109>,LOCAL 1,TAILSEND 1 'writeString',RETURN,RETURN))
constant(3) = 'anonymous'
constant(4) = CodeBox('anonymous',0,Code(STARTCALL,<Unknown instruction 109>,GLOBAL 0 0,SEND 0 'start',RETURN,RETURN))
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Called(0): XMF::anonymous at line 75 char 0
Self: Fun('anonymous')
Supers: anonymous,killProgressDialogs,busy,progress,selects,select,pathToElement,pathToElement,treeSequenceToStrings,treeSelection,selectDirectory,saveFile,openFile,input,confirm,questionYesNoCancel,questionYesOnly,question,homeDir,setHomeDir,setDocDir,buildDate,version,setVersion,user,setUser,standardOutput,setStandardOutput,initFile,setInitFile,imageDir,setImageDir,startupArgs,setStartupArgs,banner,setBanner,handles,toString,getConfigProperty,getConfigArg,getTmpDir,delay,basicBanner,bootDir,browser,browsedDirectories,canonicalPath,canonicalHomeDir,canUndo,canRedo,choose,clearClassLoader,clientHandler,clientNamed,date,date,definePreference,dialogsClient,editHomeFile,endUndoable,ensureHeap,exec,extendHeap,foreignTypeMapping,foreignMOPMapping,forwardRefs,gc,gc2,gc2heap,getHandle,load,hasClientHandler,hasPreference,heapSize,inflate,info,isFirstVersionLater,isValidVersion,javaClass,javaClass,needsGC,machine,memory,mineForwardRefs,newListeners,newListenersFor,pathRelativeToHome,preference,raise,redo,registerClientHandler,removeClientHandler,reportError,resolveRefs,saveDir,saveInflater,saveState,setClassLoader,setPreference,setReady,startUndoable,sleep,textArea,thread,threads,undo,usedHeap,warning,xmf,undoEngine,manifestManager,setManifestManager,projectManager,projectManager,setProjectManager,clientManager,debug,monitorClientCommunications,silentClientCommunications,findClient,findClientByName,getAllClients,bootEnterprise,bootMosaic,saveImage,saveImage,saveImageAndInflater,bootMenus,bootConsole,bootUndo,bootPropertyEditor,bootBrowser,bootDiagrams,bootDialogs,dialogClient,getColor,getColor,getFont,message,warning,errorMessage,openFile,errorMessageWithText,multiSelectTreeDialog,order,order2,saveFile,busy,getString,getBoolean,getFloat,getInteger,getClassifier,getExp,textClient,browseUsing,browse,clipboard,chooseFont,suppressModelBrowserNodeExpansion,registry,menuRegistryHandler,fileEditorManager,toolManager,toolBrowser,enableToolDefinitionMenuUpgrader,disableToolDefinitionMenuUpgrader,projDir,demoDir,setProperty,property,properties,hasProperty,oldEdit,edit,getChildren,getChildrenSlots,orderSequence,removeDiagramListeners,getDiagramListeners,nodeEvent,getAvailableMappings,propertyTarget,slotMissing,synchronise,slotDenied,setProperty,setHotLoad,setDaemonsActive,setDaemons,set,renameSlot,removeStructuralFeature,removeDaemonsWithTarget,removeDaemonsWithId,removeDaemonNamed,removeDaemon,machineInit,initSlots,init,hotLoaded,hotLoad,hasSlot,hasProperty,getProperties,getProperty,get,hasStructuralFeature,getStructuralFeatureNames,hasDaemonWithTarget,hasDaemonWithIdAndTarget,hasDaemonWithId,hasDaemonNamed,fire,destroyDaemon,daemonWithIdAndTarget,daemonWithId,daemonNamed,daemonsActive,daemons,allDaemonsWithTarget,allDaemonsWithId,compositeValues,allCompositeValuesAndSelf,allCompositeValues,addStructuralFeature,addPersistentDaemon,addMultiDaemon,addDaemon,slots,addMissingSlot,slotMissing,applyMapping_client,changedOnDiagram,addDiagramListener,removeDiagramListener,getDiagramListenerNamed,orderSequence,calcChildrenSlots,getChildrenToolTips,observeBy,observeBy,observedBy,observedBy,ignoreBy,ignoreByAll,saveXTO,saveXTOFile,showDiagram,showAndLayoutDiagram,toSVG,graphVizNode,getChildren,showModelBrowserNode,invokeOp,edit_redirect,assignToGlobal,pasteFromClipboard,copyToClipboard,cutToClipboard,getDefaultClipboardSource,legalSlotChangeCheck,deployXML,selectDiagram,createDiagramType,createDiagram,doubleClick,slotAffectsLabel,labelString,pprint,pprint,pprint,pprintln,toType,writeXMLFile,writeXML,lift,toSnapshot,toSnapshot,allHTMLEntries,allHTMLPackages,toHTML,writeHTML,writeHTML,writeHTMLAllEntries,writeHTMLAllPackages,writeHTMLIndex,writeHTMLOverview,yield,toString,systemId,setRoleFillerDialog,setOf,send,save2,save,removeDaemon,removeDaemon,println,print,oclIsKindOf,oclIsTypeOf,setDelegation,noOperationFound,isTypeOf,isReallyKindOf,init,init,of,isKindOf,addTo,checkConstraints,copy,deleteRecursive,die,equals,error,ferror,hashCode,isWithinNameSpace,isProtected,isViewProtected,isDeleteProtected,nameString,doc,edit,createDiagramType,createDiagramType,showAndLayoutDiagram,legalSlotChangeCheck,legalNameChangeCheck,getDefaultClipboardTarget,cutToClipboard_transaction,copyToClipboard_transaction,assignToGlobal,browse_redirect,evaluateExpression,selectModelBrowserNode,browse,getChildrenToolTips,createTool,showDiagram,oldShowDiagram,populateGraphViz
Source Code:
    @Operation anonymous():XCore::Element
      try
        try
          textClient.start()
        catch(exception)
          format(stdout,"~S~%",Seq{exception})
        end
      catch(exception)
        xmf.raise(exception);
        Kernel_die()
      end
    end
constant(0) = Array()
constant(1) = Seq{Seq{exception,Seq{2,Seq{'XCore','Element'}}},Seq{2,Seq{'XCore','Element'}},Seq{'parserImports'}}
constant(2) = CodeBox('anonymous',0,Code(STARTCALL,<Unknown instruction 109>,LOCAL 0,<Unknown instruction 109>,DYNAMIC(1) 'xmf',SEND 1 'raise',POP,<Unknown instruction 109>,<Unknown instruction 80>,TAILENTER 0,RETURN,RETURN))
constant(3) = 'anonymous'
constant(4) = CodeBox('anonymous',0,Code(<Unknown instruction 109>,GLOBAL 0 0,CONST Seq{Seq{exception,Seq{2,Seq{'XCore','Element'}}},Seq{2,Seq{'XCore','Element'}},Seq{'parserImports'}},<Unknown instruction 109>,NULL,MKFUN 1 0 2,TRY1 4,RETURN,RETURN))
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java.lang.Exception
	at engine.Machine.saveBacktrace(Machine.java:9180)
	at engine.Machine.saveBacktrace(Machine.java:9167)
	at engine.Machine.handleThrow(Machine.java:4420)
	at engine.Machine.perform(Machine.java:4398)
	at threads.ThreadInitiator.start(ThreadInitiator.java:21)
	at xos.OperatingSystem.runThread(OperatingSystem.java:1536)
	at xos.OperatingSystem.runReadyThread(OperatingSystem.java:1524)
	at xos.OperatingSystem.run(OperatingSystem.java:1504)
	at xos.OperatingSystem.init(OperatingSystem.java:607)
	at tool.xmodeler.XModeler$6.run(XModeler.java:474)