From 7714b7ba0520803994cd042e82c4cc20f7576e91 Mon Sep 17 00:00:00 2001
From: Agustin Zubiaga <aguz@sugarlabs.org>
Date: Thu, 23 Feb 2012 19:23:25 +0000
Subject: Paint the chart in the center

---
(limited to 'activity.py')

diff --git a/activity.py b/activity.py
index d422b89..303e98f 100644
--- a/activity.py
+++ b/activity.py
@@ -118,7 +118,15 @@ class ChartArea(gtk.DrawingArea):
         context.fill()
 
         # Paint the chart:
-        context.set_source_surface(self._parent.current_chart.surface)
+        cw = self._parent.current_chart.width
+        ch = self._parent.current_chart.height
+
+        x, y, w, h = self.get_allocation()
+
+        cx = x + w / 2 - cw / 2
+        cy = y + h / 2 - ch / 2
+
+        context.set_source_surface(self._parent.current_chart.surface, cx, cy)
         context.paint()
 
 
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