#include <gtk/gtk.h>
#include <gdk/gdkx.h>
#include <math.h>

void
on_destroy(GtkWidget *widget, gpointer data)
{
    gtk_main_quit();
}

gboolean
expose_event_callback(GtkWidget *widget, GdkEventExpose *event, gpointer data)
{
	cairo_t* cr = gdk_cairo_create(widget->window);

	cairo_surface_t* image_surface;
	image_surface = cairo_image_surface_create_from_png("test-1.png");

	cairo_pattern_t* pattern;
	pattern = cairo_pattern_create_for_surface(image_surface);

	cairo_matrix_t m;
	cairo_matrix_init_scale(&m, 1.25, 1.25);
//	cairo_matrix_init_rotate(&m, 5 * M_PI / 180);
	cairo_pattern_set_matrix(pattern, &m);

	cairo_set_source(cr, pattern);
	cairo_paint(cr);

	cairo_destroy(cr);
    return TRUE;
}

int
main(int argc, char *argv[])
{
    GtkWidget *window;
    GtkWidget *drawing_area;

    gtk_init(&argc, &argv);

    window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
    g_signal_connect(G_OBJECT(window), "destroy",
		     G_CALLBACK(on_destroy), NULL);

    drawing_area = gtk_drawing_area_new();
    gtk_widget_set_size_request(GTK_WIDGET(drawing_area), 600, 600);
    gtk_container_add(GTK_CONTAINER(window), drawing_area);
    g_signal_connect (G_OBJECT (drawing_area), "expose_event",  
		      G_CALLBACK (expose_event_callback), NULL);

    gtk_widget_show_all(window);

    gtk_main();

    return 0;
}