[gtk+/gtk-2-22] gtk-demo: Make pixbufs demo use Cairo

[Benjamin Otte <otte src gnome org>]

commit d7a1973f9fe7056d55e06373dd63e70f4222d68b
Author: Benjamin Otte <otte redhat com>
Date:   Tue Jul 13 15:57:18 2010 +0200

    gtk-demo: Make pixbufs demo use Cairo

 demos/gtk-demo/pixbufs.c |   17 ++++++-----------
 1 files changed, 6 insertions(+), 11 deletions(-)
---
diff --git a/demos/gtk-demo/pixbufs.c b/demos/gtk-demo/pixbufs.c
index d7b7eef..e2fbcb0 100644
--- a/demos/gtk-demo/pixbufs.c
+++ b/demos/gtk-demo/pixbufs.c
@@ -100,20 +100,15 @@ expose_cb (GtkWidget      *widget,
            GdkEventExpose *event,
            gpointer        data)
 {
-  guchar *pixels;
-  int rowstride;
+  cairo_t *cr;
 
-  rowstride = gdk_pixbuf_get_rowstride (frame);
+  cr = gdk_cairo_create (event->window);
 
-  pixels = gdk_pixbuf_get_pixels (frame) + rowstride * event->area.y + event->area.x * 3;
+  gdk_cairo_set_source_pixbuf (cr, frame, 0, 0);
+  gdk_cairo_rectangle (cr, &event->area);
+  cairo_fill (cr);
 
-  gdk_draw_rgb_image_dithalign (widget->window,
-                                widget->style->black_gc,
-                                event->area.x, event->area.y,
-                                event->area.width, event->area.height,
-                                GDK_RGB_DITHER_NORMAL,
-                                pixels, rowstride,
-                                event->area.x, event->area.y);
+  cairo_destroy (cr);
 
   return TRUE;
 }