#ifndef GUIELEMENT_H
#define GUIELEMENT_H

#include <allegro.h>

class GuiElement {
       protected:
       BITMAP *canvas;
       bool active;
       
       GuiElement(BITMAP *desiredCanvas, bool desiredActive = false) :
         canvas(desiredCanvas), active(desiredActive) {}
       
       public:
       bool getActive() const;
       
       virtual bool acknowledgeKeyStroke(int keyStroke);
       virtual bool acknowledgeKeyArray();
       virtual bool acknowledgeMouse();
       virtual void acknowledgeHeartBeat();
       
       virtual void focus();
       virtual void blur();
       
       virtual void shift(int xOffset, int yOffset) = 0;
       virtual bool within(int xTarget, int yTarget) = 0;
       virtual void draw() = 0;
       virtual void erase() = 0;
};

#endif