FROG_GLImplementation.h
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FROG_GLImplementation.h
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	// FROG_GLImplementation.h: definition of the abstract FROG OpenGL interface used by FROG_GLController
	//
	//////////////////////////////////////////////////////////////////////

	#ifndef _FROG_GLIMPLEMENTATION_H__
	#define _FROG_GLIMPLEMENTATION_H__

	#ifdef FROG_OPENGL

	#include <FL/gl.h>
	#include "GL/glext.h"
	#include "GL2PS/gl2ps.h"

	// Abstract FROG OpenGL implementation
	class FROG_GLImplementation {
	public:
	FROG_GLImplementation();
	virtual ~FROG_GLImplementation();

	// Swap OpenGL buffers (front <-> back)
	virtual void swapBuffers() = 0;

	// Render text to screen
	virtual void setFont(unsigned int FontID, unsigned int FontHeight) = 0;
	virtual void renderText(char* text) = 0;
	virtual void renderText(char* text, int x, int y) = 0;
	virtual void renderMultiLineText(char* text, int x, int y, int height=0) = 0;
	};

	// Default FROG OpenGL interface is FLTK
	class FROG_GLImplementation_FLTK : public FROG_GLImplementation {
	public:
	FROG_GLImplementation_FLTK();
	virtual ~FROG_GLImplementation_FLTK();

	virtual void swapBuffers();

	virtual void setFont(unsigned int FondID, unsigned int FontHeight);
	virtual void renderText(char* text);
	virtual void renderText(char* text, int x, int y);
	virtual void renderMultiLineText(char* text, int x, int y, int height);
	};

	#endif
	#endif