//-------------------------------------------
// GLWidget.h -- declarations for the OpenGL
//               drawing area
//-------------------------------------------

#ifndef GLWIDGET_H
#define GLWIDGET_H

#include <FL/Fl.h>
#include <FL/Fl_Gl_Window.h>

#ifdef WIN32
#include <windows.h>
#endif

#include <FL/gl.h>


class GLWidget : public Fl_Gl_Window
{
  public:

    enum DrawMode { DRAW_LINE, DRAW_FREE, DRAW_IMAGE, CLEAR_SCREEN };

	
    GLWidget( int x, int y, int w, int h, const char *title = NULL );

    void setWindowExtents();
    int handle( int event );
    void draw();
    void changeMode( DrawMode );
    void clearScreen();

	void loadPPMImage();

							// animation related declarations
	float posx, posy, t_param, pt1[2], pt2[2];
	GLubyte *image;
	int  image_w, image_h;

  private:

    int x0, x1, y0, y1;
    int num_points;
	bool useMipmaps, linearFiltering, useTexture;
//	GLubyte *floorTexture;
	GLuint  texName;
    DrawMode drawmode;
};

#endif // GLWIDGET_H