#ifndef __FTExtrdGlyph__
#define __FTExtrdGlyph__
#include <ft2build.h>
#include FT_FREETYPE_H
#include FT_GLYPH_H
#include "FTGL.h"
#include "FTGlyph.h"
class FTVectoriser;
/**
* FTExtrdGlyph is a specialisation of FTGlyph for creating tessellated
* extruded polygon glyphs.
*
* @see FTGlyphContainer
* @see FTVectoriser
*
*/
class FTGL_EXPORT FTExtrdGlyph : public FTGlyph
{
public:
/**
* Constructor
*
* @param glyph The Freetype glyph to be processed
* @param depth The distance along the z axis to extrude the glyph
*/
FTExtrdGlyph( FT_Glyph glyph, float depth);
/**
* Destructor
*/
virtual ~FTExtrdGlyph();
/**
* 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 FTPoint& pen);
private:
/**
* Calculate the winding direction of a contour.
*
* This uses the signed area of the contour. It is required because
* freetype doesn't do this despite the docs saying it does:(
*/
bool Winding( int numPoints, FTGL_DOUBLE *points);
/**
* An object that helps convert freetype outlines into point
* data
*/
FTVectoriser* vectoriser;
/**
* OpenGL display list
*/
GLuint glList;
/**
* Distance to extrude the glyph
*/
float depth;
};
#endif // __FTExtrdGlyph__
