#include <gtk/gtk.h>

static GtkWidget *hruler;
static GtkWidget *vruler;

static int num_paints = 0;

static gboolean
draw_area_motion_notify_event_cb (GtkWidget *widget,
				  GdkEventMotion *event,
				  gpointer data)
{
	gtk_ruler_set_range (GTK_RULER (hruler),
			     0, widget->allocation.width,
			     event->x,
			     1);
	gtk_ruler_set_range (GTK_RULER (vruler),
			     0, widget->allocation.height,
			     event->y,
			     1);

	num_paints++;
	return TRUE;
}

static gboolean
timeout_cb (gpointer data)
{
	g_print ("paints: %d\n", num_paints);
	return TRUE;
}

int
main (int argc, char **argv)
{
	GtkWidget *window;
	GtkWidget *table;
	GtkWidget *draw_area;

	gtk_init (&argc, &argv);

	window = gtk_window_new (GTK_WINDOW_TOPLEVEL);

	table = gtk_table_new (2, 2, FALSE);
	gtk_container_add (GTK_CONTAINER (window), table);

	draw_area = gtk_drawing_area_new ();
	gtk_widget_add_events (draw_area, GDK_POINTER_MOTION_MASK);
	gtk_table_attach (GTK_TABLE (table), draw_area,
			  1, 2, 1, 2,
			  GTK_EXPAND | GTK_FILL, GTK_EXPAND | GTK_FILL,
			  0, 0);
	g_signal_connect (draw_area, "motion-notify-event",
			  G_CALLBACK (draw_area_motion_notify_event_cb), NULL);

	hruler = gtk_hruler_new ();
	gtk_table_attach (GTK_TABLE (table), hruler,
			  1, 2, 0, 1,
			  GTK_EXPAND | GTK_FILL, 0,
			  0, 0);

	vruler = gtk_vruler_new ();
	gtk_table_attach (GTK_TABLE (table), vruler,
			  0, 1, 1, 2,
			  0, GTK_EXPAND | GTK_FILL,
			  0, 0);

	g_timeout_add (1000, timeout_cb, NULL);

	gtk_widget_show_all (window);
	gtk_main ();

	return 0;
}