working using expose-event

example.py

@@ -4,21 +4,24 @@ import os
 import sys
 import gtk
 import pango
+import cairo
 import pangocairo
 
-FONT = "Sans Bold 27"
-
 class MyWidget(gtk.DrawingArea):
     def __init__(self):
         gtk.DrawingArea.__init__(self)
         self.set_size_request(200, 200)
+        self.connect('expose-event', self.expose)
 
-    def do_draw_cb(self, widget, cr):
-        layout = pangocairo.create_layout(cr)
-        layout.set_text("Text", -1)
-        desc = pango.font_description_from_string(FONT)
-        layout.set_font_description(desc)
-        pangocairo.show_layout(cr, layout)
+    def expose(self, widget, event):
+        cr = widget.window.cairo_create()
+        cr.select_font_face("Courier",
+                cairo.FONT_SLANT_NORMAL, cairo.FONT_WEIGHT_NORMAL)
+        cr.set_font_size(20)
+        cr.set_source_rgb(1.0, 0.3, 0.0)
+        cr.move_to(0, 15)
+        cr.text_path("Hello")
+        cr.stroke()
 
 def destroy(window):
     gtk.main_quit()
@@ -28,7 +31,6 @@ def main():
     window.set_title("Custom pygtk widget hello world")
     widget = MyWidget()
     window.add(widget)
-    widget.connect('draw', widget.do_draw_cb)
     window.connect_after('destroy', destroy)
     window.show_all()
     gtk.main()