added exercise05 for chapter12

Author: trapperdot00

Chapter12/README.md

@@ -111,3 +111,6 @@ Define an abstract class and try to define an object of that type. What happens?
 
 ## [Exercise 4](exercises/04)
 Define a class `Immobile_Circle`, which is just like `Circle` but can't be moved.
+
+## [Exercise 5](exercises/05)
+Define a `Striped_rectangle` where instead of fill, the rectangle is "filled" by drawing one-pixel-wide horizontal lines across the inside of the rectangle (say, draw every second line like that). You may have to play with the width of lines and the line spacing to get a pattern you like.

Chapter12/exercises/05/CMakeLists.txt

@@ -0,0 +1,83 @@
+cmake_minimum_required(VERSION 3.5)
+
+project(Programming_Qt VERSION 0.1 LANGUAGES CXX)
+
+set(CMAKE_AUTOUIC ON)
+set(CMAKE_AUTOMOC ON)
+set(CMAKE_AUTORCC ON)
+
+set(CMAKE_CXX_STANDARD 20)
+set(CMAKE_CXX_STANDARD_REQUIRED ON)
+
+find_package(QT NAMES Qt6 Qt5 REQUIRED COMPONENTS Widgets)
+find_package(Qt${QT_VERSION_MAJOR} REQUIRED COMPONENTS Widgets)
+
+set(PROJECT_SOURCES
+    main.cpp
+    PPP/Window.h
+    PPP/Graph.h
+    PPP/GUI.h
+    PPP/Simple_window.h
+    PPP/Point.h
+    PPP/std_lib_facilities.h
+    Window.cpp
+    Graph.cpp
+    PPP/Image_private.h
+    GUI.cpp
+    PPP/GUI_private.h
+    Simple_window.cpp
+    Colormap.cpp
+)
+
+if(${QT_VERSION_MAJOR} GREATER_EQUAL 6)
+    qt_add_executable(Programming_Qt
+        MANUAL_FINALIZATION
+        ${PROJECT_SOURCES}
+    )
+
+# Define target properties for Android with Qt 6 as:
+#    set_property(TARGET Programming_Qt APPEND PROPERTY QT_ANDROID_PACKAGE_SOURCE_DIR
+#                 ${CMAKE_CURRENT_SOURCE_DIR}/android)
+# For more information, see https://doc.qt.io/qt-6/qt-add-executable.html#target-creation
+else()
+    if(ANDROID)
+        add_library(Programming_Qt SHARED
+            ${PROJECT_SOURCES}
+        )
+# Define properties for Android with Qt 5 after find_package() calls as:
+#    set(ANDROID_PACKAGE_SOURCE_DIR "${CMAKE_CURRENT_SOURCE_DIR}/android")
+    else()
+        add_executable(Programming_Qt
+            ${PROJECT_SOURCES}
+        )
+    endif()
+endif()
+
+target_link_libraries(Programming_Qt PRIVATE Qt${QT_VERSION_MAJOR}::Widgets)
+target_include_directories(Programming_Qt PRIVATE .)
+
+set_target_properties(Programming_Qt PROPERTIES
+    MACOSX_BUNDLE_GUI_IDENTIFIER my.example.com
+    MACOSX_BUNDLE_BUNDLE_VERSION ${PROJECT_VERSION}
+    MACOSX_BUNDLE_SHORT_VERSION_STRING ${PROJECT_VERSION_MAJOR}.${PROJECT_VERSION_MINOR}
+    MACOSX_BUNDLE TRUE
+    WIN32_EXECUTABLE TRUE
+)
+
+if(MSVC)
+  target_compile_options(Programming_Qt PRIVATE /EHsc /W4 /WX)
+else()
+  target_compile_options(Programming_Qt PRIVATE -Wall -Wextra -Wpedantic -Werror)
+endif()
+
+if (EMSCRIPTEN)
+    target_link_options(Programming_Qt PUBLIC -sASYNCIFY -Os)
+endif()
+
+install(TARGETS Programming_Qt
+    BUNDLE DESTINATION .
+    LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR})
+
+if(QT_VERSION_MAJOR EQUAL 6)
+    qt_finalize_executable(Programming_Qt)
+endif()

Chapter12/exercises/05/Colormap.cpp

@@ -0,0 +1,64 @@
+#include <QColor>
+#include <PPP/Image_private.h>
+
+static QColor paletteColorMap[]
+    = {{0, 0, 0},       {255, 0, 0},     {0, 255, 0},     {255, 255, 0},   {0, 0, 255},
+       {255, 0, 255},   {0, 255, 255},   {255, 255, 255}, {85, 85, 85},    {198, 113, 113},
+       {113, 198, 113}, {142, 142, 56},  {113, 113, 198}, {142, 56, 142},  {56, 142, 142},
+       {0, 0, 128},     {168, 168, 152}, {232, 232, 216}, {104, 104, 88},  {152, 168, 168},
+       {216, 232, 232}, {88, 104, 104},  {156, 156, 168}, {220, 220, 232}, {92, 92, 104},
+       {156, 168, 156}, {220, 232, 220}, {92, 104, 92},   {144, 144, 144}, {192, 192, 192},
+       {80, 80, 80},    {160, 160, 160}, {0, 0, 0},       {13, 13, 13},    {26, 26, 26},
+       {38, 38, 38},    {49, 49, 49},    {61, 61, 61},    {72, 72, 72},    {85, 85, 85},
+       {95, 95, 95},    {106, 106, 106}, {117, 117, 117}, {128, 128, 128}, {138, 138, 138},
+       {149, 149, 149}, {160, 160, 160}, {170, 170, 170}, {181, 181, 181}, {192, 192, 192},
+       {203, 203, 203}, {213, 213, 213}, {224, 224, 224}, {234, 234, 234}, {245, 245, 245},
+       {255, 255, 255}, {0, 0, 0},       {0, 36, 0},      {0, 72, 0},      {0, 109, 0},
+       {0, 145, 0},     {0, 182, 0},     {0, 218, 0},     {0, 255, 0},     {63, 0, 0},
+       {63, 36, 0},     {63, 72, 0},     {63, 109, 0},    {63, 145, 0},    {63, 182, 0},
+       {63, 218, 0},    {63, 255, 0},    {127, 0, 0},     {127, 36, 0},    {127, 72, 0},
+       {127, 109, 0},   {127, 145, 0},   {127, 182, 0},   {127, 218, 0},   {127, 255, 0},
+       {191, 0, 0},     {191, 36, 0},    {191, 72, 0},    {191, 109, 0},   {191, 145, 0},
+       {191, 182, 0},   {191, 218, 0},   {191, 255, 0},   {255, 0, 0},     {255, 36, 0},
+       {255, 72, 0},    {255, 109, 0},   {255, 145, 0},   {255, 182, 0},   {255, 218, 0},
+       {255, 255, 0},   {0, 0, 63},      {0, 36, 63},     {0, 72, 63},     {0, 109, 63},
+       {0, 145, 63},    {0, 182, 63},    {0, 218, 63},    {0, 255, 63},    {63, 0, 63},
+       {63, 36, 63},    {63, 72, 63},    {63, 109, 63},   {63, 145, 63},   {63, 182, 63},
+       {63, 218, 63},   {63, 255, 63},   {127, 0, 63},    {127, 36, 63},   {127, 72, 63},
+       {127, 109, 63},  {127, 145, 63},  {127, 182, 63},  {127, 218, 63},  {127, 255, 63},
+       {191, 0, 63},    {191, 36, 63},   {191, 72, 63},   {191, 109, 63},  {191, 145, 63},
+       {191, 182, 63},  {191, 218, 63},  {191, 255, 63},  {255, 0, 63},    {255, 36, 63},
+       {255, 72, 63},   {255, 109, 63},  {255, 145, 63},  {255, 182, 63},  {255, 218, 63},
+       {255, 255, 63},  {0, 0, 127},     {0, 36, 127},    {0, 72, 127},    {0, 109, 127},
+       {0, 145, 127},   {0, 182, 127},   {0, 218, 127},   {0, 255, 127},   {63, 0, 127},
+       {63, 36, 127},   {63, 72, 127},   {63, 109, 127},  {63, 145, 127},  {63, 182, 127},
+       {63, 218, 127},  {63, 255, 127},  {127, 0, 127},   {127, 36, 127},  {127, 72, 127},
+       {127, 109, 127}, {127, 145, 127}, {127, 182, 127}, {127, 218, 127}, {127, 255, 127},
+       {191, 0, 127},   {191, 36, 127},  {191, 72, 127},  {191, 109, 127}, {191, 145, 127},
+       {191, 182, 127}, {191, 218, 127}, {191, 255, 127}, {255, 0, 127},   {255, 36, 127},
+       {255, 72, 127},  {255, 109, 127}, {255, 145, 127}, {255, 182, 127}, {255, 218, 127},
+       {255, 255, 127}, {0, 0, 191},     {0, 36, 191},    {0, 72, 191},    {0, 109, 191},
+       {0, 145, 191},   {0, 182, 191},   {0, 218, 191},   {0, 255, 191},   {63, 0, 191},
+       {63, 36, 191},   {63, 72, 191},   {63, 109, 191},  {63, 145, 191},  {63, 182, 191},
+       {63, 218, 191},  {63, 255, 191},  {127, 0, 191},   {127, 36, 191},  {127, 72, 191},
+       {127, 109, 191}, {127, 145, 191}, {127, 182, 191}, {127, 218, 191}, {127, 255, 191},
+       {191, 0, 191},   {191, 36, 191},  {191, 72, 191},  {191, 109, 191}, {191, 145, 191},
+       {191, 182, 191}, {191, 218, 191}, {191, 255, 191}, {255, 0, 191},   {255, 36, 191},
+       {255, 72, 191},  {255, 109, 191}, {255, 145, 191}, {255, 182, 191}, {255, 218, 191},
+       {255, 255, 191}, {0, 0, 255},     {0, 36, 255},    {0, 72, 255},    {0, 109, 255},
+       {0, 145, 255},   {0, 182, 255},   {0, 218, 255},   {0, 255, 255},   {63, 0, 255},
+       {63, 36, 255},   {63, 72, 255},   {63, 109, 255},  {63, 145, 255},  {63, 182, 255},
+       {63, 218, 255},  {63, 255, 255},  {127, 0, 255},   {127, 36, 255},  {127, 72, 255},
+       {127, 109, 255}, {127, 145, 255}, {127, 182, 255}, {127, 218, 255}, {127, 255, 255},
+       {191, 0, 255},   {191, 36, 255},  {191, 72, 255},  {191, 109, 255}, {191, 145, 255},
+       {191, 182, 255}, {191, 218, 255}, {191, 255, 255}, {255, 0, 255},   {255, 36, 255},
+       {255, 72, 255},  {255, 109, 255}, {255, 145, 255}, {255, 182, 255}, {255, 218, 255},
+       {255, 255, 255}};
+
+namespace Graph_lib {
+QColor mapPaletteColor(int rawColor)
+{
+    return paletteColorMap[rawColor % 256];
+}
+
+} // namespace Graph_lib