// Liest größe der angeschlossenen Monitore aus
// Quelle: http://stackoverflow.com/questions/836086/programmatically-determining-individual-screen-widths-heights-in-linux-w-xineram

#include <gdk/gdk.h>
#define bool int
#define true 1
#define false 0


int main(int argc, char *argv[])
{
	GdkScreen *gdkscreen;
	int i;
	bool screen = true;
	bool monitor = true;
	bool human = true;
	bool help = false;

	for(i=1; i < argc; i++)
	{
		if (argv[i][0] == '-' ) {
			switch (argv[i][1]) {
				case 's': monitor = false; break;
				case 'm': screen = false; break;
				case 'n': human = false; break;
				default: help = true;
			}
		} else {
			help = true;
		}
	}

	if (help) {
		fprintf (stderr, "Usage: %s [-s|-m] [-H]\n", argv[0]);
		fprintf (stderr, "\t-s get only screen size\n");
		fprintf (stderr, "\t-m get only monitor sizes\n");
		fprintf (stderr, "\t-n no human readable output\n");
		return 1;
	}
	
	g_type_init();
	gtk_init(NULL, NULL);
	gdkscreen = gdk_screen_get_default ();
	if (screen) {
		if (human) {
			printf ("screen size (%d, %d)\n", gdk_screen_get_width(gdkscreen), gdk_screen_get_height(gdkscreen));
		} else {
			printf ("%d %d\n", gdk_screen_get_width(gdkscreen), gdk_screen_get_height(gdkscreen));
		}
	}

	if (monitor) {
		for (i = 0; i < gdk_screen_get_n_monitors (gdkscreen); i++) {
			GdkRectangle rect;
			gdk_screen_get_monitor_geometry (gdkscreen, i, &rect);
			if (human) {
				printf ("monitor %d: offsets (%d, %d), size (%d, %d)\n", i, rect.x, rect.y, rect.width, rect.height);
			} else {
				printf ("%d %d %d %d\n", rect.x, rect.y, rect.width, rect.height);
			}
		}
	}
	return 0;
}