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FTPolyGlyph.h
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FTPolyGlyph.h
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#ifndef __FTPolyGlyph__
#define __FTPolyGlyph__
#include <vtk_freetype.h>
#include FT_FREETYPE_H
#include FT_GLYPH_H
#include "FTGL.h"
#include "FTGLgl.h"
#include "FTGlyph.h"
#ifdef FTGL_USE_NAMESPACE
namespace ftgl
{
#endif
class FTVectoriser;
/**
* FTPolyGlyph is a specialisation of FTGlyph for creating tessellated
* polygon glyphs.
*
* @see FTGlyphContainer
* @see FTVectoriser
*
*/
class FTGL_EXPORT FTPolyGlyph : public FTGlyph
{
public:
/**
* Constructor
*
* @param glyph The Freetype glyph to be processed
*/
FTPolyGlyph( FT_Glyph glyph);
/**
* Destructor
*/
virtual ~FTPolyGlyph();
/**
* Renders this glyph at the current pen position.
*
* @param pen The current pen position.
* @return The advance distance for this glyph.
*/
virtual float Render( const FT_Vector& pen,
const FTGLRenderContext *context = 0);
private:
/**
* Convert the point data into a mesh.
*
* Uses GLUtesselator to create a mesh
*/
void Tesselate();
/**
* An object that helps convert freetype outlines into point
* data
*/
FTVectoriser* vectoriser;
/**
* The total number of points in the Freetype outline
*/
int numPoints;
/**
* Pointer to the point data
*/
FTGL_DOUBLE* data;
/**
* OpenGL display list
*/
GLuint glList;
};
#ifdef FTGL_USE_NAMESPACE
} // namespace ftgl
#endif
#endif // __FTPolyGlyph__