From 8aad41077510f1b488a580b48cac038146fd389c Mon Sep 17 00:00:00 2001
From: Walter Bender <walter@sugarlabs.org>
Date: Sun, 21 Nov 2010 02:50:29 +0000
Subject: mapping to turtle coordinate space (#2502)

---
diff --git a/pysamples/push_mouse_event.py b/pysamples/push_mouse_event.py
index a79f53e..485061f 100644
--- a/pysamples/push_mouse_event.py
+++ b/pysamples/push_mouse_event.py
@@ -32,8 +32,8 @@ def myblock(lc, x):
 
     if lc.tw.mouse_flag == 1:
         # push y first so x will be popped first
-        lc.heap.append(lc.tw.mouse_y)
-        lc.heap.append(lc.tw.mouse_x)
+        lc.heap.append((lc.tw.canvas.height / 2) - lc.tw.mouse_y)
+        lc.heap.append(lc.tw.mouse_x - (lc.tw.canvas.width / 2))
         lc.heap.append(1) # mouse event
         lc.tw.mouse_flag = 0
     else:
--
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