Public API Reference

csplugincommon/canvas/softfontcacheimpl.h

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/*
    Copyright (C) 2004 by Jorrit Tyberghein
              (C) 2004 by Frank Richter

    This library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Library General Public
    License as published by the Free Software Foundation; either
    version 2 of the License, or (at your option) any later version.

    This library 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
    Library General Public License for more details.

    You should have received a copy of the GNU Library General Public
    License along with this library; if not, write to the Free
    Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/

#ifndef __CS_CSPLUGINCOMMON_CANVAS_SOFTFONTCACHEIMPL_H__
#define __CS_CSPLUGINCOMMON_CANVAS_SOFTFONTCACHEIMPL_H__

#include "graph2d.h"
#include "csplugincommon/canvas/draw_text.h"

template <class Tpixel, class Tpixmixer>
class csSoftFontCacheImpl : public csSoftFontCache
{
  void WriteString (iFont *font, int x, int y, int fg, int bg, 
    const void* text, bool isWide, uint flags)
  {
    int realColorFG;
    uint8 alphaFG;
    SplitAlpha (fg, realColorFG, alphaFG);
    int realColorBG;
    uint8 alphaBG;
    SplitAlpha (bg, realColorBG, alphaBG);

    if (alphaBG == 0)
    {
      if (alphaFG == 0)
        return;
      realColorBG = realColorFG;
      if (alphaFG == 255)
      {
        csG2DDrawText<Tpixel, csPixMixerCopy<Tpixel>, csPixMixerNoop<Tpixel>, 
          Tpixmixer>::DrawText (this, font, x, y, realColorFG, alphaFG, 
          realColorBG, alphaBG, text, isWide, flags);
      }
      else
      {
        csG2DDrawText<Tpixel, Tpixmixer, csPixMixerNoop<Tpixel>, 
          Tpixmixer>::DrawText (this, font, x, y, realColorFG, alphaFG, 
          realColorBG, alphaBG, text, isWide, flags);
      }
    }
    else if (alphaBG == 255)
    {
      if (alphaFG == 0)
      {
        csG2DDrawText<Tpixel, csPixMixerNoop<Tpixel>, csPixMixerCopy<Tpixel>, 
          Tpixmixer>::DrawText (this, font, x, y, realColorFG, alphaFG, 
          realColorBG, alphaBG, text, isWide, flags);
      }
      else if (alphaFG == 255)
      {
        csG2DDrawText<Tpixel, csPixMixerCopy<Tpixel>, csPixMixerCopy<Tpixel>, 
          Tpixmixer>::DrawText (this, font, x, y, realColorFG, alphaFG, 
          realColorBG, alphaBG, text, isWide, flags);
      }
      else
      {
        csG2DDrawText<Tpixel, Tpixmixer, csPixMixerCopy<Tpixel>, 
          Tpixmixer>::DrawText (this, font, x, y, realColorFG, alphaFG, 
          realColorBG, alphaBG, text, isWide, flags);
      }
    }
    else
    {
      if (alphaFG == 0)
      {
        csG2DDrawText<Tpixel, csPixMixerNoop<Tpixel>, Tpixmixer, 
          Tpixmixer>::DrawText (this, font, x, y, realColorFG, alphaFG, 
          realColorBG, alphaBG, text, isWide, flags);
      }
      else if (alphaFG == 255)
      {
        csG2DDrawText<Tpixel, csPixMixerCopy<Tpixel>, Tpixmixer, 
          Tpixmixer>::DrawText (this, font, x, y, realColorFG, alphaFG, 
          realColorBG, alphaBG, text, isWide, flags);
      }
      else
      {
        csG2DDrawText<Tpixel, Tpixmixer, Tpixmixer, Tpixmixer>::DrawText (
          this, font, x, y, realColorFG, alphaFG, realColorBG, alphaBG, text, 
          isWide, flags);
      }
    }
  }
public:
  csSoftFontCacheImpl (csGraphics2D* G2D) : csSoftFontCache (G2D)
  {
  }
  virtual void WriteString (iFont *font, int x, int y, int fg, int bg, 
    const utf8_char* text, uint flags)
  {
    if (!text || !*text) return;
    
    WriteString (font, x, y, fg, bg, text, false, flags);
  }
  virtual void WriteString (iFont *font, int x, int y, int fg, int bg, 
    const wchar_t* text, uint flags)
  {
    if (!text || !*text) return;
    
    WriteString (font, x, y, fg, bg, text, true, flags);
  }
};

#endif // __CS_CSPLUGINCOMMON_CANVAS_SOFTFONTCACHEIMPL_H__

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