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;
char buffer[5];
buffer[0] = character;
buffer[1] = 0; //TODO: utf8
SDL_Color sdlcolor = {( color >> 11 ) << 3, ( ( color << 5 ) >> 10 ) << 2, ( ( color & 31 ) << 3 )};
SDL_Surface* surface = TTF_RenderUTF8_Solid( font->font, buffer, sdlcolor );
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 );
TTF_SizeUTF8( font->font, buffer, &( letter->width ), &( letter->height ) );
if ( font->maxheight < letter->height )
font->maxheight = letter->height;
}
PREFIX void spFontAdd( spFontPointer font, Uint32 character, Uint16 color )
{
spLetterPointer letter = ( spLetterPointer )malloc( sizeof( spLetterStruct ) );
spFontChangeLetter( font, letter, character, color );
letter->character = character;
//tree insert
font->root = spFontInsert( letter, font->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 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 )};
int width;
if (spFontCorrectStrategy(caption) == SP_FONT_BUTTON)
{
char buffer[5];
buffer[0] = character;
buffer[1] = 0; //TODO: utf8
SDL_Surface* surface = TTF_RenderUTF8_Solid( font->font, caption, sdlcolor );
width = font->maxheight + SP_FONT_EXTRASPACE * 2;
if ( width & 1 )
width++;
letter->surface = spCreateSurface(width, width);
SDL_LockSurface(letter->surface);
int x,y;
Uint16* pixel = (Uint16*)letter->surface->pixels;
int w = letter->surface->pitch/letter->surface->format->BytesPerPixel;
for (x = 0; x < letter->surface->w; x++)
for (y = 0; y < letter->surface->h; y++)
{
if ((x-width/2)*(x-width/2)+(y-width/2)*(y-width/2) <= width*width/4)
{
if ((x-width/2)*(x-width/2)+(y-width/2)*(y-width/2) <= width*width/5)
pixel[x+y*w] = bgColor;
else
pixel[x+y*w] = fgColor;
}
else
pixel[x+y*w] = SP_ALPHA_COLOR;
}
SDL_UnlockSurface(letter->surface);
SDL_Rect DestR;
DestR.x = width/2-surface->w/2;
DestR.y = font->maxheight/2+SP_FONT_EXTRASPACE-surface->h/2;
DestR.w = surface->w;
DestR.h = surface->h;
SDL_BlitSurface( surface, NULL, letter->surface, &DestR );
SDL_FreeSurface( surface );
}
else
{
int buttonWidth = font->maxheight + SP_FONT_EXTRASPACE * 2;
int border = buttonWidth/14;
SDL_Surface* surface = TTF_RenderUTF8_Solid( font->font, caption, sdlcolor );
width = surface->w+2*SP_FONT_EXTRASPACE+2*border;
if ( width & 1 )
width++;
letter->surface = spCreateSurface(width, font->maxheight+SP_FONT_EXTRASPACE*2);
SDL_LockSurface(letter->surface);
int x,y;
Uint16* pixel = (Uint16*)letter->surface->pixels;
int w = letter->surface->pitch/letter->surface->format->BytesPerPixel;
for (x = 0; x < letter->surface->w; x++)
for (y = 0; y < letter->surface->h; y++)
{
if (x < border || y < border ||
x >= width-border || y >= letter->surface->h-border)
pixel[x+y*w] = fgColor;
else
pixel[x+y*w] = bgColor;
}
SDL_UnlockSurface(letter->surface);
SDL_Rect DestR;
DestR.x = SP_FONT_EXTRASPACE+border;
DestR.y = font->maxheight/2+SP_FONT_EXTRASPACE-surface->h/2;
DestR.w = surface->w;
DestR.h = surface->h;
SDL_BlitSurface( surface, NULL, letter->surface, &DestR );
SDL_FreeSurface( surface );
}
letter->height = font->maxheight;
letter->width = width;
}
PREFIX void spFontAddButton( spFontPointer font, Uint32 character, char* caption, Uint16 fgColor, Uint16 bgColor )
{
spLetterPointer letter = ( spLetterPointer )malloc( sizeof( spLetterStruct ) );
spFontChangeButton( font, letter, character, caption, fgColor, bgColor );
letter->character = character;
//tree insert
font->buttonRoot = spFontInsert( letter, font->buttonRoot );
}