#ifndef _CALLBACKS_H_
#define _CALLBACKS_H_

#include "setup_widgets.h"


extern void scale_down_callback(Widget w, XtPointer client_data, XtPointer call_data);

extern void scale_up_callback(Widget w, XtPointer client_data, XtPointer call_data);

extern void trans_xplus_callback(Widget w, XtPointer client_data, XtPointer call_data);

extern void trans_xminus_callback(Widget w, XtPointer client_data, XtPointer call_data);
 
extern void trans_yplus_callback(Widget w, XtPointer client_data, XtPointer call_data);

extern void trans_yminus_callback(Widget w, XtPointer client_data, XtPointer call_data);

extern void rotate_cw_callback(Widget w, XtPointer client_data, XtPointer call_data);

extern void rotate_ccw_callback(Widget w, XtPointer client_data, XtPointer call_data);

extern void colour_callback(Widget w, XtPointer client_data, XtPointer call_data);

extern void quit_callback(Widget w, XtPointer client_data, XtPointer call_data);

extern void load_callback(Widget w, XtPointer client_data, XtPointer call_data);

extern void redisplay_event(Widget w, XtPointer client, XExposeEvent *ev);

extern void draw_graphics(Widget w);

#endif