kc3-lang/ftgl/src/FTGLOutlineFont.cpp

Branch : - branch - master - tag -

• Show log

  Commit

• Author : sammy
  Date : 2008-04-21 21:48:03
  Hash : 7e74380f
  Message : * Inset/outset contour support for fonts, by Eric Beets. For now, only contours with exactly the same number of points are generated.

• src/FTGLOutlineFont.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 "FTGLOutlineFont.h"
  #include "FTOutlineGlyph.h"
  
  
  FTGLOutlineFont::FTGLOutlineFont( const char* fontFilePath)
  :   FTFont(fontFilePath),
      outset(0.0f)
  {}
  
  
  FTGLOutlineFont::FTGLOutlineFont( const unsigned char *pBufferBytes, size_t bufferSizeInBytes)
  :   FTFont( pBufferBytes, bufferSizeInBytes)
  {}
  
  
  FTGLOutlineFont::~FTGLOutlineFont()
  {}
  
  
  FTGlyph* FTGLOutlineFont::MakeGlyph( unsigned int g)
  {
      FT_GlyphSlot ftGlyph = face.Glyph( g, FT_LOAD_NO_HINTING);
  
      if( ftGlyph)
      {
          FTOutlineGlyph* tempGlyph = new FTOutlineGlyph(ftGlyph, outset, useDisplayLists);
          return tempGlyph;
      }
  
      err = face.Error();
      return NULL;
  }
  
  
  template <typename T>
  inline void FTGLOutlineFont::RenderI(const T* string)
  {
      glPushAttrib(GL_ENABLE_BIT | GL_HINT_BIT | GL_LINE_BIT
                    | GL_COLOR_BUFFER_BIT);
  
      glDisable(GL_TEXTURE_2D);
  
      glEnable(GL_LINE_SMOOTH);
      glHint(GL_LINE_SMOOTH_HINT, GL_DONT_CARE);
      glEnable(GL_BLEND);
      glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA); // GL_ONE
  
      FTFont::Render(string);
  
      glPopAttrib();
  }
  
  
  void FTGLOutlineFont::Render(const char* string)
  {
      RenderI(string);
  }
  
  
  void FTGLOutlineFont::Render(const wchar_t* string)
  {
      RenderI(string);
  }
  
  
  namespace C
  {
      extern "C" FTGLfont* ftglCreateOutlineFont(const char *fontname)
      {
          FTGLfont *ftgl = createFTFont(Outline, fontname);
          return ftgl;
      }
  }