/*
 *  Image Converter
 *  ---------------
 *  This program tests the loading and saving of
 *  images.
 */

#include <graphapp.h>

char * filename = NULL;
image  img = NULL;
button btn = NULL;

void load_an_image(button b)
{
	image new_img;
	window win = parentwindow(b);
	filename = askfilename(NULL, filename);

	if (filename) {
		setcursor(WatchCursor);
		new_img = loadimage(filename);
		if (new_img) {
			setimage(btn, new_img);
			resize(btn, rect(10,50,
				getwidth(new_img)+4,
				getheight(new_img)+4));
			del(img);
			img = new_img;
		}
		setcursor(ArrowCursor);
	}
}

void save_an_image(button b)
{
	filename = askfilesave(NULL, filename);

	if (filename) {
		setcursor(WatchCursor);
		saveimage(img, filename);
		setcursor(ArrowCursor);
	}
}

void main(void)
{
	rect r = rect(0,0,200,200);
	window w = newwindow("Image Converter",
			rect(50,50,400,350), StandardWindow);

	newbutton("Load...", rect(10,10,90,30), load_an_image);
	newbutton("Save As...", rect(110,10,90,30), save_an_image);
	btn = newimagebutton(NULL, rect(10,50,15,15), NULL);

	show(w);
}