[gegl-gtk] Add example showing usage with PyGObject (pygi)

[Jon Nordby <jonnor src gnome org>]

commit fbae1e2a1b858479d71bd1f20ac2832425f6a90f
Author: Jon Nordby <jononor gmail com>
Date:   Thu Jul 14 00:59:44 2011 +0200

    Add example showing usage with PyGObject (pygi)

 examples/gegl-gtk-python.py |   38 ++++++++++++++++++++++++++++++++++++++
 1 files changed, 38 insertions(+), 0 deletions(-)
---
diff --git a/examples/gegl-gtk-python.py b/examples/gegl-gtk-python.py
new file mode 100644
index 0000000..dc6fa4d
--- /dev/null
+++ b/examples/gegl-gtk-python.py
@@ -0,0 +1,38 @@
+
+import sys, os.path
+
+import gi
+from gi.repository import Gegl, GeglGtk2, Gtk
+
+graph_xml = """
+<gegl>
+  <gegl:crop width='512' height='512'/>
+  <gegl:over >
+    <gegl:translate x='30' y='30'/>
+    <gegl:dropshadow radius='1.5' x='3' y='3'/>
+    <gegl:text size='80' color='white'><params>
+      <param name='string'>GEGL GTK</param>
+      </params>
+    </gegl:text>
+  </gegl:over>
+  <gegl:unsharp-mask std-dev='30'/>
+  <gegl:load path='%s'/>
+</gegl>"""
+
+if __name__ == '__main__':
+    if len(sys.argv) != 2:
+        print 'Usage: %s FILE' % sys.argv[0]
+        sys.exit(1)
+
+    file_path = os.path.abspath(sys.argv[1])
+
+    Gegl.init(0,"")
+    node = Gegl.Node.new_from_xml(graph_xml % file_path, "/");
+    view_widget = GeglGtk2.View()
+    view_widget.set_property('node', node.get_children()[-1])
+
+    window = Gtk.Window()
+    window.add(view_widget)
+    window.show_all()
+    Gtk.main()
+