kc3-lang/ftgl/src/FTGLPixmapFont.cpp

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• Author : sammy
  Date : 2008-04-16 15:57:01
  Hash : 2cf6ff94
  Message : * Remove a lot of code duplication caused by the char/wchar_t overloading thanks to templates. No API change here.

• src/FTGLPixmapFont.cpp

• /*
   * FTGL - OpenGL font library
   *
   * Copyright (c) 2001-2004 Henry Maddocks <ftgl@opengl.geek.nz>
   *
   * Permission is hereby granted, free of charge, to any person obtaining
   * a copy of this software and associated documentation files (the
   * "Software"), to deal in the Software without restriction, including
   * without limitation the rights to use, copy, modify, merge, publish,
   * distribute, sublicense, and/or sell copies of the Software, and to
   * permit persons to whom the Software is furnished to do so, subject to
   * the following conditions:
   * 
   * The above copyright notice and this permission notice shall be
   * included in all copies or substantial portions of the Software.
   * 
   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
   * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
   * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
   * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
   * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
   * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
   * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
   *
   * Alternatively, you can redistribute and/or modify this software under
   * the terms of the GNU Lesser General Public License as published by
   * the Free Software Foundation; either version 2.1 of the License,
   * or (at your option) any later version.
   *
   * You should have received a copy of the GNU Lesser General Public
   * License along with this software; if not, write to the Free Software
   * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA.
   */
  
  #include "config.h"
  
  #include "FTInternals.h"
  
  #include "FTGLPixmapFont.h"
  #include "FTPixmapGlyph.h"
  
  
  FTGLPixmapFont::FTGLPixmapFont( const char* fontFilePath)
  :   FTFont( fontFilePath)
  {}
  
  
  FTGLPixmapFont::FTGLPixmapFont( const unsigned char *pBufferBytes, size_t bufferSizeInBytes)
  :   FTFont( pBufferBytes, bufferSizeInBytes)
  {}
  
  
  FTGLPixmapFont::~FTGLPixmapFont()
  {}
  
  
  FTGlyph* FTGLPixmapFont::MakeGlyph( unsigned int g)
  {
      FT_GlyphSlot ftGlyph = face.Glyph( g, FT_LOAD_NO_HINTING);
  
      if( ftGlyph)
      {
          FTPixmapGlyph* tempGlyph = new FTPixmapGlyph( ftGlyph);
          return tempGlyph;
      }
  
      err = face.Error();
      return NULL;
  }
  
  
  template <typename T>
  inline void FTGLPixmapFont::RenderI(const T* string)
  {   
      glPushAttrib(GL_ENABLE_BIT | GL_PIXEL_MODE_BIT | GL_COLOR_BUFFER_BIT);
      glPushClientAttrib(GL_CLIENT_PIXEL_STORE_BIT);
  
      glEnable(GL_BLEND);
      glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
  
      glDisable(GL_TEXTURE_2D);
  
      GLfloat ftglColour[4];
      glGetFloatv(GL_CURRENT_RASTER_COLOR, ftglColour);
  
      glPixelTransferf(GL_RED_SCALE, ftglColour[0]);
      glPixelTransferf(GL_GREEN_SCALE, ftglColour[1]);
      glPixelTransferf(GL_BLUE_SCALE, ftglColour[2]);
      glPixelTransferf(GL_ALPHA_SCALE, ftglColour[3]);
  
      FTFont::Render(string);
  
      glPopClientAttrib();
      glPopAttrib();
  }
  
  
  void FTGLPixmapFont::Render(const char* string)
  {
      RenderI(string);
  }
  
  
  void FTGLPixmapFont::Render(const wchar_t* string)
  {   
      RenderI(string);
  }
  
  
  namespace C
  {
      extern "C" FTGLfont* ftglCreatePixmapFont(const char *fontname)
      {
          FTGLfont *ftgl = createFTFont(Pixmap, fontname);
          return ftgl;
      }
  }