CrystalSpace

Public API Reference

csplugincommon/canvas/softfontcacheimpl.h

Go to the documentation of this file.
00001 /*
00002     Copyright (C) 2004 by Jorrit Tyberghein
00003               (C) 2004 by Frank Richter
00004 
00005     This library is free software; you can redistribute it and/or
00006     modify it under the terms of the GNU Library General Public
00007     License as published by the Free Software Foundation; either
00008     version 2 of the License, or (at your option) any later version.
00009 
00010     This library is distributed in the hope that it will be useful,
00011     but WITHOUT ANY WARRANTY; without even the implied warranty of
00012     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00013     Library General Public License for more details.
00014 
00015     You should have received a copy of the GNU Library General Public
00016     License along with this library; if not, write to the Free
00017     Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
00018 */
00019 
00020 #ifndef __CS_CSPLUGINCOMMON_CANVAS_SOFTFONTCACHEIMPL_H__
00021 #define __CS_CSPLUGINCOMMON_CANVAS_SOFTFONTCACHEIMPL_H__
00022 
00027 #include "graph2d.h"
00028 #include "csplugincommon/canvas/draw_text.h"
00029 
00040 template <class Tpixel, class Tpixmixer>
00041 class csSoftFontCacheImpl : public csSoftFontCache
00042 {
00043 public:
00044   csSoftFontCacheImpl (csGraphics2D* G2D) : csSoftFontCache (G2D)
00045   {
00046   }
00047   virtual void WriteString (iFont *font, int x, int y, int fg, int bg, 
00048     const utf8_char* text, uint flags)
00049   {
00050     if (!text || !*text) return;
00051 
00052     int realColorFG;
00053     uint8 alphaFG;
00054     SplitAlpha (fg, realColorFG, alphaFG);
00055     int realColorBG;
00056     uint8 alphaBG;
00057     SplitAlpha (bg, realColorBG, alphaBG);
00058 
00059     if (alphaBG == 0)
00060     {
00061       if (alphaFG == 0)
00062         return;
00063       realColorBG = realColorFG;
00064       if (alphaFG == 255)
00065       {
00066         csG2DDrawText<Tpixel, csPixMixerCopy<Tpixel>, csPixMixerNoop<Tpixel>, 
00067           Tpixmixer>::DrawText (this, font, x, y, realColorFG, alphaFG, 
00068           realColorBG, alphaBG, text, flags);
00069       }
00070       else
00071       {
00072         csG2DDrawText<Tpixel, Tpixmixer, csPixMixerNoop<Tpixel>, 
00073           Tpixmixer>::DrawText (this, font, x, y, realColorFG, alphaFG, 
00074           realColorBG, alphaBG, text, flags);
00075       }
00076     }
00077     else if (alphaBG == 255)
00078     {
00079       if (alphaFG == 0)
00080       {
00081         csG2DDrawText<Tpixel, csPixMixerNoop<Tpixel>, csPixMixerCopy<Tpixel>, 
00082           Tpixmixer>::DrawText (this, font, x, y, realColorFG, alphaFG, 
00083           realColorBG, alphaBG, text, flags);
00084       }
00085       else if (alphaFG == 255)
00086       {
00087         csG2DDrawText<Tpixel, csPixMixerCopy<Tpixel>, csPixMixerCopy<Tpixel>, 
00088           Tpixmixer>::DrawText (this, font, x, y, realColorFG, alphaFG, 
00089           realColorBG, alphaBG, text, flags);
00090       }
00091       else
00092       {
00093         csG2DDrawText<Tpixel, Tpixmixer, csPixMixerCopy<Tpixel>, 
00094           Tpixmixer>::DrawText (this, font, x, y, realColorFG, alphaFG, 
00095           realColorBG, alphaBG, text, flags);
00096       }
00097     }
00098     else
00099     {
00100       if (alphaFG == 0)
00101       {
00102         csG2DDrawText<Tpixel, csPixMixerNoop<Tpixel>, Tpixmixer, 
00103           Tpixmixer>::DrawText (this, font, x, y, realColorFG, alphaFG, 
00104           realColorBG, alphaBG, text, flags);
00105       }
00106       else if (alphaFG == 255)
00107       {
00108         csG2DDrawText<Tpixel, csPixMixerCopy<Tpixel>, Tpixmixer, 
00109           Tpixmixer>::DrawText (this, font, x, y, realColorFG, alphaFG, 
00110           realColorBG, alphaBG, text, flags);
00111       }
00112       else
00113       {
00114         csG2DDrawText<Tpixel, Tpixmixer, Tpixmixer, Tpixmixer>::DrawText (
00115           this, font, x, y, realColorFG, alphaFG, realColorBG, alphaBG, text, 
00116           flags);
00117       }
00118     }
00119   }
00120 };
00121 
00124 #endif // __CS_CSPLUGINCOMMON_CANVAS_SOFTFONTCACHEIMPL_H__

Generated for Crystal Space by doxygen 1.4.6