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sparrowFont.c
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/* This file is part of sparrow3d.
* Sparrow3d is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 2 of the License, or
* (at your option) any later version.
*
* Sparrow3d is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with Foobar. If not, see <http://www.gnu.org/licenses/>
*
* For feedback and questions about my Files and Projects please mail me,
* Alexander Matthes (Ziz) , zizsdl_at_googlemail.com */
#include "sparrowFont.h"
#include "sparrowPrimitives.h"
#include <stdlib.h>
#include <string.h>
Uint32 spFontButtonLeft = '[';
Uint32 spFontButtonRight = ']';
Uint32 spFontMapLeft = '{';
Uint32 spFontMapRight = '}';
int spFontStrategy = SP_FONT_INTELLIGENT;
int spFontLastUTF8Length = 0;
int spFontBackgroundColor = SP_FONT_NO_BORDER;
int spFontButtonShade = 0;
PREFIX spFontPointer spFontLoad(const char* fontname, Uint32 size )
{
TTF_Font* ttf = TTF_OpenFont( fontname, size );
if ( !ttf )
{
printf( "Failed to load Font \"%s\", dude...\n", fontname );
printf( " Error was: \"%s\"\n", TTF_GetError() );
return NULL;
}
spFontPointer font = ( spFontPointer )malloc( sizeof( spFont ) );
font->font = ttf;
font->root = NULL;
font->buttonRoot = NULL;
font->size = size;
font->maxheight = 0;
font->cacheOffset = 0;
font->cache.cache = NULL;
spFontChangeCacheSize( font, SP_FONT_DEFAULT_CACHE );
return font;
}
static Sint32 spLetterGetHeight( spLetterPointer letter )
{
return letter ? letter->binary_height : -1;
}
static spLetterPointer spLetterRotateLeft( spLetterPointer K2 )
{
spLetterPointer K1;
K1 = K2->left;
K2->left = K1->right;
K1->right = K2;
K2->binary_height = spMax( spLetterGetHeight( K2->left ), spLetterGetHeight( K2->right ) ) + 1;
K1->binary_height = spMax( spLetterGetHeight( K1->left ), spLetterGetHeight( K2 ) ) + 1;
return K1;
}
static spLetterPointer spLetterRotateRight( spLetterPointer K1 )
{
spLetterPointer K2;
K2 = K1->right;
K1->right = K2->left;
K2->left = K1;
K1->binary_height = spMax( spLetterGetHeight( K1->left ), spLetterGetHeight( K1->right ) ) + 1;
K2->binary_height = spMax( spLetterGetHeight( K2->right ), spLetterGetHeight( K1 ) ) + 1;
return K2;
}
static spLetterPointer spLetterDoubleLeft( spLetterPointer K3 )
{
K3->left = spLetterRotateRight( K3->left );
return spLetterRotateLeft( K3 );
}
static spLetterPointer spLetterDoubleRight( spLetterPointer K3 )
{
K3->right = spLetterRotateLeft( K3->right );
return spLetterRotateRight( K3 );
}
static spLetterPointer spFontInsert( spLetterPointer letter, spLetterPointer root )
{
if( root == NULL )
{
root = letter;
letter->binary_height = 0;
letter->left = NULL;
letter->right = NULL;
}
else if( letter->character < root->character )
{
root->left = spFontInsert( letter, root->left );
if( spLetterGetHeight( root->left ) - spLetterGetHeight( root->right ) == 2 )
if( letter->character < root->left->character )
root = spLetterRotateLeft( root );
else
root = spLetterDoubleLeft( root );
}
else if( letter->character > root->character )
{
root->right = spFontInsert( letter, root->right );
if( spLetterGetHeight( root->right ) - spLetterGetHeight( root->left ) == 2 )
if( letter->character > root->right->character )
root = spLetterRotateRight( root );
else
root = spLetterDoubleRight( root );
}
root->binary_height = spMax( spLetterGetHeight( root->left ), spLetterGetHeight( root->right ) ) + 1;
return root;
}
PREFIX void spFontChangeLetter( spFontPointer font, spLetterPointer letter, Uint32 character, Uint16 color )
{
letter->color = color;
Uint16 buffer[2];
buffer[0] = character;
buffer[1] = 0;
SDL_Color sdlcolor = {( color >> 11 ) << 3, ( ( color << 5 ) >> 10 ) << 2, ( ( color & 31 ) << 3 )};
SDL_Surface* surface;
if (spFontBackgroundColor == SP_FONT_NO_BORDER)
surface = TTF_RenderUNICODE_Solid( font->font, buffer, sdlcolor );
else
{
SDL_Color background = {( spFontBackgroundColor >> 11 ) << 3, ( ( spFontBackgroundColor << 5 ) >> 10 ) << 2, ( ( spFontBackgroundColor & 31 ) << 3 )};
surface = TTF_RenderUNICODE_Shaded( font->font, buffer, sdlcolor ,background );
}
if (!surface)
surface = spCreateSurface(0,font->maxheight);
int width = surface->w + SP_FONT_EXTRASPACE * 2;
if ( width & 1 )
width++;
letter->surface = spCreateSurface(width, surface->h + SP_FONT_EXTRASPACE * 2);
SDL_FillRect( letter->surface, NULL, SP_ALPHA_COLOR );
SDL_Rect DestR;
DestR.x = SP_FONT_EXTRASPACE;
DestR.y = SP_FONT_EXTRASPACE;
DestR.w = surface->w;
DestR.h = surface->h;
SDL_BlitSurface( surface, NULL, letter->surface, &DestR );
SDL_FreeSurface( surface );
//Setting every spFontBackgroundColor to the alpha color
SDL_LockSurface( letter->surface );
Uint16* pixel = ( Uint16* )( letter->surface->pixels );
int scanline = letter->surface->pitch/letter->surface->format->BytesPerPixel;
int x, y;
for ( x = 0; x < letter->surface->w; x++ )
for ( y = 0; y < letter->surface->h; y++ )
if ( pixel[x + y * scanline] == spFontBackgroundColor )
pixel[x + y * scanline] = SP_ALPHA_COLOR;
SDL_UnlockSurface( letter->surface );
TTF_SizeUNICODE( font->font, buffer, &( letter->width ), &( letter->height ) );
if ( font->maxheight < letter->height )
font->maxheight = letter->height;
}
static void spFontInternalAddOneCharacter( spFontPointer font, Uint32 character, Uint16 color )
{
if (spFontGetLetter(font,character))
return;
spLetterPointer letter = ( spLetterPointer )malloc( sizeof( spLetter ) );
spFontChangeLetter( font, letter, character, color );
letter->character = character;
//tree insert
font->root = spFontInsert( letter, font->root );
}
PREFIX void spFontAdd( spFontPointer font, char* characters, Uint16 color )
{
//parsing the characters string.
int pos = 0;
while (1)
{
Uint32 character = spFontGetUnicodeFromUTF8(&(characters[pos]));
if (character == 0)
break;
pos+=spFontLastUTF8Length;
spFontInternalAddOneCharacter(font,character,color);
}
}
PREFIX void spFontAddRange( spFontPointer font, char* from, char* to, Uint16 color )
{
//getting the characters strings
Uint32 c_from = spFontGetUnicodeFromUTF8(from);
if (c_from == 0)
return;
Uint32 c_to = spFontGetUnicodeFromUTF8(to);
if (c_to == 0)
return;
Uint32 character;
if (c_from > c_to)
{
character = c_from;
c_from = c_to;
c_to = character;
}
for (character = c_from; character <= c_to; character++)
spFontInternalAddOneCharacter(font,character,color);
}
PREFIX Uint32 spFontGetUnicodeFromUTF8(const char* sign)
{
if (!(sign[0] & 128))
{
spFontLastUTF8Length = 1;
return sign[0]; // 0xxxxxxx
}
//No ASCII sign => counting the following bytes:
int pos = 128; //first bit
spFontLastUTF8Length = 0;
while (sign[0] & pos) //until we find the first zero
{
spFontLastUTF8Length++;
pos=pos>>1; //pos = pos / 2; => next bit
}
switch (spFontLastUTF8Length)
{
case 2: //110xxxxx 10xxxxxx
//the first bit has to be and the second one DOESN'T have to be set
if (!(sign[1] & 128) || (sign[1] & 64))
return 0;
return (((Uint32)sign[0] & 31) << 6) | ((Uint32)sign[1] & 63);
case 3: //1110xxxx 10xxxxxx 10xxxxxx
if (!(sign[1] & 128) || (sign[1] & 64))
return 0;
if (!(sign[2] & 128) || (sign[2] & 64))
return 0;
return (((Uint32)sign[0] & 15) << 12) | (((Uint32)sign[1] & 63) << 6) | ((Uint32)sign[2] & 63);
case 4: //11110xxx 10xxxxxx 10xxxxxx 10xxxxxx
if (!(sign[1] & 128) || (sign[1] & 64))
return 0;
if (!(sign[2] & 128) || (sign[2] & 64))
return 0;
if (!(sign[3] & 128) || (sign[3] & 64))
return 0;
return (((Uint32)sign[0] & 7) << 18) | (((Uint32)sign[1] & 63) << 12) | (((Uint32)sign[2] & 63) << 6) | ((Uint32)sign[3] & 63);
}
return 0;
}
PREFIX char* spFontGetUTF8FromUnicode(Uint32 sign,char* buffer,int len)
{
if (buffer == NULL)
return NULL;
if (len < 1)
return NULL;
buffer[0] = 0;
if (len < 2)
return buffer;
if (sign < (1 << 7)) //ASCII
{
buffer[0] = sign;
buffer[1] = 0;
spFontLastUTF8Length = 1;
return buffer;
}
if (len < 3)
return buffer;
if (sign < (1 << 11)) //2 Byte UTF8
{
buffer[0] = 128+64+(sign >> 6);
buffer[1] = 128+ (sign & 63);
buffer[2] = 0;
spFontLastUTF8Length = 2;
return buffer;
}
if (len < 4)
return buffer;
if (sign < (1 << 16)) //3 Byte UTF8
{
buffer[0] = 128+64+32+ (sign >> 12);
buffer[1] = 128+ ((sign >> 6) & 63);
buffer[2] = 128+ ( sign & 63);
buffer[3] = 0;
spFontLastUTF8Length = 3;
return buffer;
}
if (len < 5)
return buffer;
if (sign < (1 << 21)) //4 Byte UTF8
{
buffer[0] = 128+64+32+16+ (sign >> 18);
buffer[1] = 128+ ((sign >> 12) & 63);
buffer[2] = 128+ ((sign >> 6) & 63);
buffer[3] = 128+ ( sign & 63);
buffer[4] = 0;
spFontLastUTF8Length = 4;
}
return buffer;
}
static int spFontCorrectStrategy(char* button)
{
if (spFontStrategy != SP_FONT_INTELLIGENT)
return spFontStrategy;
#if defined GP2X || defined CAANOO || defined DINGUX || defined GCW || defined PANDORA
if (strcmp(button,SP_BUTTON_A_NAME) == 0 ||
strcmp(button,SP_BUTTON_B_NAME) == 0 ||
strcmp(button,SP_BUTTON_X_NAME) == 0 ||
strcmp(button,SP_BUTTON_Y_NAME) == 0 ||
strcmp(button,SP_BUTTON_L_NAME) == 0 ||
strcmp(button,SP_BUTTON_R_NAME) == 0)
return SP_FONT_BUTTON;
else
return SP_FONT_KEY;
#else
return SP_FONT_KEY;
#endif
}
PREFIX void spFontChangeButton( spFontPointer font, spLetterPointer letter, Uint32 character, char* caption, Uint16 fgColor, Uint16 bgColor )
{
letter->color = fgColor;
SDL_Color sdlcolor = {( fgColor >> 11 ) << 3, ( ( fgColor << 5 ) >> 10 ) << 2, ( ( fgColor & 31 ) << 3 )};
SDL_Color background = {( bgColor >> 11 ) << 3, ( ( bgColor << 5 ) >> 10 ) << 2, ( ( bgColor & 31 ) << 3 )};
SDL_Surface* surface;
if (spFontButtonShade)
surface = TTF_RenderUTF8_Shaded( font->font, caption, sdlcolor , background);
else
surface = TTF_RenderUTF8_Solid( font->font, caption, sdlcolor );
int height = font->maxheight;
//if ( height & 1 )
// height++;
int width = spMax(height,surface->w+font->maxheight/2);
//if ( width & 1 )
// width++;
letter->surface = spCreateSurface(width, height);
SDL_Surface* result = SDL_ConvertSurface( surface , letter->surface->format, letter->surface->flags);
SDL_FreeSurface(surface);
surface = result;
SDL_LockSurface(letter->surface);
int x,y;
Uint16* pixel = (Uint16*)letter->surface->pixels;
int w = letter->surface->pitch/letter->surface->format->BytesPerPixel;
int R = spGetRFromColor(bgColor);
int G = spGetGFromColor(bgColor);
int B = spGetBFromColor(bgColor);
int circle_width = height*9/10;
for (x = 0; x < letter->surface->w; x++)
for (y = 0; y < letter->surface->h; y++)
{
int f_width = abs(x-width/2);
f_width = f_width - width/2 + height/2;
f_width = spMax(0,f_width);
if (f_width*f_width+(y-height/2)*(y-height/2) <= (circle_width+1)*(circle_width+1)/4)
{
int factor = (f_width*f_width+(y-height/2)*(y-height/2));
factor *= 256;
factor /= circle_width*circle_width/4;
if (factor > 256)
factor = 256;
factor = 256 - factor/2;
pixel[x+y*w] = spGetRGB(R*factor/256,G*factor/256,B*factor/256);
}
else
pixel[x+y*w] = SP_ALPHA_COLOR;
}
SDL_UnlockSurface(letter->surface);
SDL_LockSurface(surface);
pixel = (Uint16*)surface->pixels;
w = surface->pitch/surface->format->BytesPerPixel;
Uint16 BGCOLOR = pixel[0];//SDL_MapRGB(surface->format,background.r,background.g,background.b);
for (x = 0; x < surface->w; x++)
for (y = 0; y < surface->h; y++)
if (pixel[x+y*w] == BGCOLOR)
pixel[x+y*w] = SP_ALPHA_COLOR;
SDL_UnlockSurface(surface);
SDL_Rect DestR;
DestR.x = (width-surface->w+1)/2;
DestR.y = (height-surface->h+1)/2;
DestR.w = surface->w;
DestR.h = surface->h;
SDL_SetColorKey( surface, SDL_SRCCOLORKEY, SP_ALPHA_COLOR );
SDL_BlitSurface( surface, NULL, letter->surface, &DestR );
SDL_FreeSurface( surface );
letter->height = height;
letter->width = width;
}
PREFIX void spFontAddButton( spFontPointer font, Uint32 character, char* caption, Uint16 fgColor, Uint16 bgColor )
{
spLetterPointer letter = ( spLetterPointer )malloc( sizeof( spLetter ) );
spFontChangeButton( font, letter, character, caption, fgColor, bgColor );
letter->character = character;
//tree insert
font->buttonRoot = spFontInsert( letter, font->buttonRoot );
}
PREFIX void spFontSetButtonBorderSigns(Uint32 left,Uint32 right)
{
spFontButtonLeft = left;
spFontButtonRight = right;
}
PREFIX void spFontSetSemanticButtonBorderSigns(Uint32 left,Uint32 right)
{
spFontMapLeft = left;
spFontMapRight = right;
}
PREFIX void spFontSetButtonStrategy(int strategy)
{
spFontStrategy = strategy;
}
static void spLetterAddBorder( spLetterPointer letter, Uint16 bordercolor )
{
if ( letter == NULL )
return;
spLetterAddBorder( letter->left, bordercolor );
spLetterAddBorder( letter->right, bordercolor );
SDL_LockSurface( letter->surface );
//create copy of the pixel data
Uint16* inputpixel = ( Uint16* )malloc( sizeof( Uint16 ) * letter->surface->w * letter->surface->h );
Uint16* pixel = ( Uint16* )( letter->surface->pixels );
memcpy( inputpixel, pixel, sizeof( Uint16 )*letter->surface->w * letter->surface->h );
int x, y;
for ( x = 0; x < letter->surface->w; x++ )
for ( y = 0; y < letter->surface->h; y++ )
if ( inputpixel[x + y * letter->surface->w] != SP_ALPHA_COLOR )
{
//Left
if ( x - 1 >= 0 && inputpixel[x - 1 + y * letter->surface->w] == SP_ALPHA_COLOR )
pixel[x - 1 + y * letter->surface->w] = bordercolor;
//Right
if ( x + 1 < letter->surface->w && inputpixel[x + 1 + y * letter->surface->w] == SP_ALPHA_COLOR )
pixel[x + 1 + y * letter->surface->w] = bordercolor;
//Up
if ( y - 1 >= 0 && inputpixel[x + ( y - 1 )*letter->surface->w] == SP_ALPHA_COLOR )
pixel[x + ( y - 1 )*letter->surface->w] = bordercolor;
//Down
if ( y + 1 < letter->surface->h && inputpixel[x + ( y + 1 )*letter->surface->w] == SP_ALPHA_COLOR )
pixel[x + ( y + 1 )*letter->surface->w] = bordercolor;
}
free( inputpixel );
SDL_UnlockSurface( letter->surface );
letter->width+=2;
}
PREFIX void spFontAddBorder( spFontPointer font, Uint16 bordercolor )
{
spLetterAddBorder( font->root, bordercolor );
spLetterAddBorder( font->buttonRoot, bordercolor );
}
static void spLetterReplaceColor( spLetterPointer letter, Uint16 oldcolor, Uint16 newcolor )
{
if ( letter == NULL )
return;
spLetterReplaceColor( letter->left, oldcolor, newcolor );
spLetterReplaceColor( letter->right, oldcolor, newcolor );
SDL_LockSurface( letter->surface );
//create copy of the pixel data
Uint16* inputpixel = ( Uint16* )malloc( sizeof( Uint16 ) * letter->surface->w * letter->surface->h );
Uint16* pixel = ( Uint16* )( letter->surface->pixels );
memcpy( inputpixel, pixel, sizeof( Uint16 )*letter->surface->w * letter->surface->h );
int x, y;
for ( x = 0; x < letter->surface->w; x++ )
for ( y = 0; y < letter->surface->h; y++ )
if ( inputpixel[x + y * letter->surface->w] == oldcolor )
pixel[x + y * letter->surface->w] = newcolor;
free( inputpixel );
SDL_UnlockSurface( letter->surface );
}
PREFIX void spFontReplaceColor( spFontPointer font, Uint16 oldcolor, Uint16 newcolor )
{
spLetterReplaceColor( font->root, oldcolor, newcolor );
}
void spLetterMulWidth( spLetterPointer letter, Sint32 factor )
{
if ( letter == NULL )
return;
spLetterMulWidth( letter->left, factor );
spLetterMulWidth( letter->right, factor );
letter->width = letter->width * factor >> SP_ACCURACY;
}
PREFIX void spFontMulWidth( spFontPointer font, Sint32 factor )
{
spLetterMulWidth( font->root, factor );
}
static spLetterPointer spLetterFind( spLetterPointer root, Uint32 character )
{
if ( root == NULL )
return NULL;
if ( character < root->character )
return spLetterFind( root->left, character );
if ( character > root->character )
return spLetterFind( root->right, character );
return root;
}
static spLetterPointer spLetterFindMap( spLetterPointer root, spLetterPointer buttonRoot,const char* button, int *length)
{
if ( root == NULL )
return NULL;
//Getting the semantic button
char temp[64];
int i;
for (i = 0; i < 64; i++)
{
if (button[i] == spFontMapRight)
break;
temp[i] = button[i];
}
if (i == 64)
{
*length = 0;
return spLetterFind(root,spFontMapLeft);
}
temp[i] = 0;
*length = i+1;
//Finding the button:
char* realButton = spMapButtonByName(temp);
if (realButton == NULL || strcmp(realButton,"None") == 0)
{
*length = 0;
return spLetterFind(root,spFontMapLeft);
}
//a button?
if (realButton[0] == spFontButtonLeft)
{
spLetterPointer letter;
if (realButton[2] == spFontButtonRight)
letter = spLetterFind(buttonRoot,realButton[1]);
if (letter)
return letter;
*length = 0;
return spLetterFind(root,spFontButtonLeft);
}
return NULL;
}
PREFIX spLetterPointer spFontGetLetter( spFontPointer font, Uint32 character )
{
//Caching
if ( character >= font->cacheOffset && character < font->cacheOffset + font->cache.size )
{
spLetterPointer result = font->cache.cache[character - font->cacheOffset];
if ( result != ( void* )( -1 ) ) //Found
return result;
//Else: Save in Cache
result = spLetterFind( font->root, character );
if (result)
font->cache.cache[character - font->cacheOffset] = result;
return result;
}
return spLetterFind( font->root, character );
}
PREFIX spLetterPointer spFontGetButton( spFontPointer font, Uint32 character )
{
return spLetterFind( font->buttonRoot, character );
}
PREFIX int spFontDraw( Sint32 x, Sint32 y, Sint32 z, const char* text, spFontPointer font )
{
int l = 0;
int pos = x;
while ( text[l] != 0 )
{
if (text[l] == '\n')
{
pos = x;
y+=font->maxheight;
l++;
continue;
}
spLetterPointer letter;
//first we look for buttons
int l_add = 0;
if (text[l]==spFontButtonLeft && (letter = spLetterFind( font->buttonRoot, text[l+1])) && text[l+2]==spFontButtonRight)
l+=2;
else
if (text[l]==spFontMapLeft && (letter = spLetterFindMap( font->root, font->buttonRoot, &(text[l+1]), &l_add)))
l+=l_add;
else
{
Uint32 sign = spFontGetUnicodeFromUTF8(&(text[l]));
letter = spFontGetLetter( font, sign );
}
if ( letter )
{
pos += letter->width >> 1;
spBlitSurface( pos, y + letter->height / 2, z, letter->surface );
pos += letter->width - ( letter->width >> 1 );
}
l+=spFontLastUTF8Length;
}
return pos-x;
}
/* Needed by spFontDrawRight and spFontDrawMiddle */
typedef struct spLetterIterStruct *spLetterIterPointer;
typedef struct spLetterIterStruct
{
spLetterPointer letter;
spLetterIterPointer next; //For the Drawing functions
} spLetterIter;
PREFIX int spFontDrawRight( Sint32 x, Sint32 y, Sint32 z, const char *text, spFontPointer font )
{
int l = 0;
int width;
spLetterIterPointer first = NULL;
spLetterIterPointer last = NULL;
int again = 1;
while ( again )
{
width = 0;
again = 0;
while ( text[l] != 0 )
{
if ( text[l] == '\n' )
{
again = 1;
l++;
break;
}
spLetterPointer letter;
//first we look for buttons
int l_add;
if ( text[l] == spFontButtonLeft && ( letter = spLetterFind( font->buttonRoot, text[l + 1] ) ) && text[l + 2] == spFontButtonRight )
l += 2;
else
if (text[l] == spFontMapLeft && (letter = spLetterFindMap( font->root, font->buttonRoot, &(text[l+1]), &l_add)))
l+=l_add;
else
{
Uint32 sign = spFontGetUnicodeFromUTF8( &( text[l] ) );
letter = spFontGetLetter( font, sign );
}
if ( letter )
{
spLetterIterPointer iter = ( spLetterIterPointer )malloc( sizeof( spLetterIter ) );
iter->letter = letter;
if ( first == NULL )
{
first = iter;
last = iter;
}
else
{
last->next = iter;
last = iter;
}
width += letter->width;
iter->next = NULL;
}
l += spFontLastUTF8Length;
}
int pos = x - width;
while ( first != NULL )
{
pos += first->letter->width >> 1;
spBlitSurface( pos, y + first->letter->height / 2, z, first->letter->surface );
pos += first->letter->width - ( first->letter->width >> 1 );
spLetterIterPointer mom = first;
first = first->next;
free( mom );
}
if ( again )
y += font->maxheight;
}
return width;
}
PREFIX int spFontDrawMiddle( Sint32 x, Sint32 y, Sint32 z, const char *text, spFontPointer font )
{
int l = 0;
int width;
spLetterIterPointer first = NULL;
spLetterIterPointer last = NULL;
int again = 1;
while ( again )
{
width = 0;
again = 0;
while ( text[l] != 0 )
{
if ( text[l] == '\n' )
{
again = 1;
l++;
break;
}
spLetterPointer letter;
//first we look for buttons
int l_add;
if ( text[l] == spFontButtonLeft && ( letter = spLetterFind( font->buttonRoot, text[l + 1] ) ) && text[l + 2] == spFontButtonRight )
l += 2;
else
if (text[l] == spFontMapLeft && (letter = spLetterFindMap( font->root, font->buttonRoot, &(text[l+1]), &l_add)))
l+=l_add;
else
{
Uint32 sign = spFontGetUnicodeFromUTF8( &( text[l] ) );
letter = spFontGetLetter( font, sign );
}
if ( letter )
{
spLetterIterPointer iter = ( spLetterIterPointer )malloc( sizeof( spLetterIter ) );
iter->letter = letter;
if ( first == NULL )
{
first = iter;
last = iter;
}
else
{
last->next = iter;
last = iter;
}
width += letter->width;
iter->next = NULL;
}
l += spFontLastUTF8Length;
}
int pos = x - width / 2;
while ( first != NULL )
{
pos += first->letter->width >> 1;
spBlitSurface( pos, y + first->letter->height / 2, z, first->letter->surface );
pos += first->letter->width - ( first->letter->width >> 1 );
spLetterIterPointer mom = first;
first = first->next;
free( mom );
}
if ( again )
y += font->maxheight;
}
return width;
}
PREFIX int spFontWidth(const char* text, spFontPointer font )
{
int l = 0;
int width;
int max_width = 0;
int again = 1;
while ( again )
{
width = 0;
again = 0;
while ( text[l] != 0 )
{
if ( text[l] == '\n' )
{
again = 1;
l++;
if (width > max_width)
max_width = width;
break;
}
spLetterPointer letter;
//first we look for buttons
int l_add;
if ( text[l] == spFontButtonLeft && ( letter = spLetterFind( font->buttonRoot, text[l + 1] ) ) && text[l + 2] == spFontButtonRight )
l += 2;
else
if (text[l] == spFontMapLeft && (letter = spLetterFindMap( font->root, font->buttonRoot, &(text[l+1]), &l_add)))
l+=l_add;
else
{
Uint32 sign = spFontGetUnicodeFromUTF8( &( text[l] ) );
letter = spFontGetLetter( font, sign );
}
if (letter)
width += letter->width;
l += spFontLastUTF8Length;
}
}
if (width > max_width)
max_width = width;
return max_width;
}
static void spLetterDelete( spLetterPointer letter )
{
if ( letter == NULL )
return;
spLetterDelete( letter->left );
spLetterDelete( letter->right );
spDeleteSurface( letter->surface );
free( letter );
}
PREFIX void spFontDelete( spFontPointer font )
{
spLetterDelete( font->root );
TTF_CloseFont( font->font );
if ( font->cache.cache )
free( font->cache.cache );
free( font );
}
PREFIX void spFontChangeCacheSize( spFontPointer font, Sint32 size )
{
if ( font->cache.cache )
free( font->cache.cache );
font->cache.size = size;
font->cache.cache = ( spLetterPointer* )malloc( font->cache.size * sizeof( spLetterPointer ) );
memset( font->cache.cache, 0xFF, font->cache.size * sizeof( spLetterPointer ) );
}
PREFIX void spFontSetCacheStart( spFontPointer font, Sint32 letter )
{
font->cacheOffset = letter;
memset( font->cache.cache, 0xFF, font->cache.size * sizeof( spLetterPointer ) );
}
PREFIX Sint32 spFontGetCacheStart( spFontPointer font )
{
return font->cacheOffset;
}
PREFIX void spFontSetShadeColor(int value)
{
spFontBackgroundColor = value;
}
PREFIX void spFontShadeButtons(int value)
{
spFontButtonShade = value;
}
PREFIX void spFontAddEveryLetterOfTextBundle( spFontPointer font, spBundlePointer bundle,Uint16 color)
{
//Parsing bundle
spTextPointer momText = bundle->firstText;
while (momText)
{
spTranslationPointer momTranslastion = momText->firstTranslation;
while (momTranslastion)
{
spFontAdd( font, momTranslastion->text, color );
momTranslastion = momTranslastion->next;
}
momText = momText->next;
}
}
typedef struct spInternalTextLineStruct *spInternalTextLinePointer;
typedef struct spInternalTextLineStruct
{
int count;
int width;
char* text;
spInternalTextLinePointer next;
} spInternalTextLine;
PREFIX spTextBlockPointer spCreateTextBlock( const char* text, int max_width, spFontPointer font)
{
//Cutting at spaces. If line break, do!
if (text == NULL)
return 0;
spInternalTextLinePointer firstLine = NULL;
int l = strlen(text)+1;
#ifdef _MSC_VER
char* buffer = (char*)malloc( l * sizeof(char) );
#else
char buffer[l];
#endif
memcpy(buffer,text,l);
int pos = 0;
int last_space = 0;
int space_count = 0;
int start = 0;
int count = 0;
while (1)
{
char c;
int width;
if (buffer[start] == '\n')
pos = start;
if (buffer[pos] == ' ' || buffer[pos] == '\n' || buffer[pos] == 0)
{
c = buffer[pos];
buffer[pos] = 0;
width = spFontWidth(&buffer[start],font);
buffer[pos] = c;
if (width > max_width || buffer[pos]!=' ')
{
spInternalTextLinePointer newLine = (spInternalTextLinePointer)malloc(sizeof(spInternalTextLine));
newLine->next = firstLine;
firstLine = newLine;
count++;
if ( width <= max_width )
last_space = pos;
if (space_count > 0 || width <= max_width)
{
c = buffer[last_space];
buffer[last_space] = 0;
newLine->width = spFontWidth(&buffer[start],font);
newLine->count = (last_space-start);
newLine->text = (char*)malloc(newLine->count+1);
memcpy(newLine->text,&buffer[start],newLine->count+1);
buffer[last_space] = c;
if (buffer[last_space] == 0)
break;
pos = last_space+1;
}
else
{
//Searching, when to do the "line break"
char buffer_with_minus[65535] = "-";
int b_pos = -1;
pos = start-1;
width = spFontWidth(buffer_with_minus,font);
while (width <= max_width)
{
b_pos++;
pos++;
buffer_with_minus[b_pos] = buffer[pos];
buffer_with_minus[b_pos+1] = '-';
buffer_with_minus[b_pos+2] = 0;
width = spFontWidth(buffer_with_minus,font);
}
buffer_with_minus[b_pos] = '-';
buffer_with_minus[b_pos+1] = 0;
newLine->width = spFontWidth(buffer_with_minus,font);
newLine->count = (pos-start);
newLine->text = (char*)malloc(newLine->count+1);
memcpy(newLine->text,buffer_with_minus,newLine->count+1);
if (buffer[pos] == 0)
break;
last_space = pos;
}
start=pos;
space_count = 0;
}
else
{
last_space = pos;
space_count++;
}
}
pos++;
}
spTextBlockPointer block = (spTextBlockPointer)malloc(sizeof(spTextBlock));
block->line_count = count;
block->max_width = max_width;
block->line = (spTextLinePointer)malloc(count*sizeof(spTextLine));
int i = count-1;
while (firstLine)
{
spInternalTextLinePointer next = firstLine->next;
block->line[i].count = firstLine->count;
block->line[i].width = firstLine->width;
block->line[i].text = firstLine->text;
free(firstLine);
i--;
firstLine = next;
}
return block;
}
PREFIX void spDeleteTextBlock(spTextBlockPointer block)
{
if (block)
{
int i;
for (i = 0; i < block->line_count; i++)