kc3-lang/ftgl/src/FTGlyphContainer.cpp

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• Hash : 141112c4
  Author :
  Date : 2008-04-12T22:44:48
  

  * Add licensing information to all files in the library.

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• src/FTGlyphContainer.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 "FTGlyphContainer.h"
  #include "FTGlyph.h"
  #include "FTFace.h"
  #include "FTCharmap.h"
  
  
  FTGlyphContainer::FTGlyphContainer( FTFace* f)
  :   face(f),
      err(0)
  {
      glyphs.push_back( NULL);
      charMap = new FTCharmap( face);
  }
  
  
  FTGlyphContainer::~FTGlyphContainer()
  {
      GlyphVector::iterator glyphIterator;
      for( glyphIterator = glyphs.begin(); glyphIterator != glyphs.end(); ++glyphIterator)
      {
          delete *glyphIterator;
      }
      
      glyphs.clear();
      delete charMap;
  }
  
  
  bool FTGlyphContainer::CharMap( FT_Encoding encoding)
  {
      bool result = charMap->CharMap( encoding);
      err = charMap->Error();
      return result;
  }
  
  
  unsigned int FTGlyphContainer::FontIndex( const unsigned int characterCode) const
  {
      return charMap->FontIndex( characterCode);
  }
  
  
  void FTGlyphContainer::Add( FTGlyph* tempGlyph, const unsigned int characterCode)
  {
      charMap->InsertIndex( characterCode, glyphs.size());
      glyphs.push_back( tempGlyph);
  }
  
  
  const FTGlyph* const FTGlyphContainer::Glyph( const unsigned int characterCode) const
  {
      signed int index = charMap->GlyphListIndex( characterCode);
      return glyphs[index];
  }
  
  
  FTBBox FTGlyphContainer::BBox( const unsigned int characterCode) const
  {
      return glyphs[charMap->GlyphListIndex( characterCode)]->BBox();
  }
  
  
  float FTGlyphContainer::Advance( const unsigned int characterCode, const unsigned int nextCharacterCode)
  {
      unsigned int left = charMap->FontIndex( characterCode);
      unsigned int right = charMap->FontIndex( nextCharacterCode);
  
      float width = face->KernAdvance( left, right).X();
      width += glyphs[charMap->GlyphListIndex( characterCode)]->Advance().X();
      
      return width;
  }
  
  
  FTPoint FTGlyphContainer::Render( const unsigned int characterCode, const unsigned int nextCharacterCode, FTPoint penPosition)
  {
      FTPoint kernAdvance, advance;
      
      unsigned int left = charMap->FontIndex( characterCode);
      unsigned int right = charMap->FontIndex( nextCharacterCode);
  
      kernAdvance = face->KernAdvance( left, right);
          
      if( !face->Error())
      {
          advance = glyphs[charMap->GlyphListIndex( characterCode)]->Render( penPosition);
      }
      
      kernAdvance += advance;
      return kernAdvance;
  }
  

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