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ImageWindow.h

#ifndef IMAGE_WINDOW_H
#define IMAGE_WINDOW_H

#include <GL/gl.h>
#include <GL/glu.h>
#include <glow.h>

#include "Image.h"


GLOW_NAMESPACE_USING

enum MouseActionType { MOUSE_DOWN, MOUSE_UP };


class ImageWindow : public GlowWindow
{
public:
        
        bool            newContent;

        void            (*mouse_press)(Glow::MouseButton button,int x, int y,Glow::Modifiers modifiers, MouseActionType action);

        void            (*mouse_move)(int x, int y);
        
        void (*graphics_callback )(GlowComponent *parent) ; 

protected:
/* Protected Data Definitions */
        
        // Dimensions of the image
        unsigned int    width;          
        unsigned int    height;         
        unsigned int    size;
        float           scalefactor;
        bool            size_changed;
        
        Image::Type     type;
        GLint           *pixels;
        GLubyte         *data;
        GLubyte         *data_bk;
        GLubyte         *data_grab;

        volatile bool   grab_display ;
        volatile bool   grab_display_grey ;
        int             *gd_ptr ; 
        
public:
/* Public Methods */
        
        ImageWindow(int width, int height, const char* title);
        ~ImageWindow(); 

        void set_display_type(Image::Type t){ type = t; };
        void operator << (ImageRGB&);
        void operator << (ImageGrey&);
        void operator << (Image&);
        void operator >> (ImageRGB&);
        void operator >> (ImageGrey&);
        void set_zoom(float zoom);
        float get_zoom(){return scalefactor;}   

protected:
/* Protected Methods */
        virtual void    OnEndPaint();
        virtual void    OnMouseDown(Glow::MouseButton button,
                        int x, int y,
                        Glow::Modifiers modifiers);
        virtual void    OnMouseUp(Glow::MouseButton button,
                        int x, int y,
                        Glow::Modifiers modifiers);

        virtual void    OnMouseMotion(int x, int y);
        void            repackRGB();
        void            repackGrey();

        void            grab_rgb() ;
        void            grab_grey() ;
};


#endif  // IMAGE_WINDOW_H

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