kc3-lang/ftgl/include/FTGlyph.h

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• Hash : 55888982
  Author :
  Date : 2004-10-17T00:40:24
  

  Changed advance to be an FTPoint rather than a float.

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• include/FTGlyph.h

• #ifndef     __FTGlyph__
  #define     __FTGlyph__
  
  #include <ft2build.h>
  #include FT_FREETYPE_H
  #include FT_GLYPH_H
  
  #include "FTBBox.h"
  #include "FTPoint.h"
  #include "FTGL.h"
  
  
  /**
   * FTGlyph is the base class for FTGL glyphs.
   *
   * It provides the interface between Freetype glyphs and their openGL
   * renderable counterparts. This is an abstract class and derived classes
   * must implement the <code>render</code> function. 
   * 
   * @see FTGlyphContainer
   * @see FTBBox
   * @see FTPoint
   *
   */
  class FTGL_EXPORT FTGlyph
  {
      public:
          /**
           * Constructor
           *
           * @param glyph The Freetype glyph to be processed
           * @param useDisplayList Enable or disable the use of Display Lists for this glyph
           *                       <code>true</code> turns ON display lists.
           *                       <code>false</code> turns OFF display lists.
           */
          FTGlyph( FT_GlyphSlot glyph, bool useDisplayList = true);
  
          /**
           * Destructor
           */
          virtual ~FTGlyph();
  
          /**
           * Renders this glyph at the current pen position.
           *
           * @param pen   The current pen position.
           * @return      The advance distance for this glyph.
           */
          virtual const FTPoint& Render( const FTPoint& pen) = 0;
          
          /**
           * Return the advance width for this glyph.
           *
           * @return  advance width.
           */
          const FTPoint& Advance() const { return advance;}
          
          /**
           * Return the bounding box for this glyph.
           *
           * @return  bounding box.
           */
          const FTBBox& BBox() const { return bBox;}
          
          /**
           * Queries for errors.
           *
           * @return  The current error code.
           */
          FT_Error Error() const { return err;}
          
      protected:
          /**
           * The advance distance for this glyph
           */
          FTPoint advance;
  
          /**
           * The bounding box of this glyph.
           */
          FTBBox bBox;
          
          /**
           * Flag to enable or disable the use of Display Lists inside FTGL
           * <code>true</code> turns ON display lists.
           * <code>false</code> turns OFF display lists.
           */
          bool useDisplayList;
          
          /**
           * Current error code. Zero means no error.
           */
          FT_Error err;
          
      private:
  
  };
  
  
  #endif  //  __FTGlyph__
  
  

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