From 259f968184d27a9f5fd3007f99a5d0ef525072aa Mon Sep 17 00:00:00 2001
From: Walter Bender <walter@walter-laptop.(none)>
Date: Fri, 29 Jan 2010 22:14:15 +0000
Subject: palette hide button

---
diff --git a/sprites.py b/sprites.py
index e6969cc..6d5c942 100644
--- a/sprites.py
+++ b/sprites.py
@@ -323,15 +323,21 @@ class Sprite:
         return((self._width-self._margins[0]-self._margins[2],
                 self._width-self._margins[1]-self._margins[3]))
     
-    def get_pixel(self, image, x, y):
+    def get_pixel(self, pos):
+        x, y = pos
+        x = x-self._x
+        y = y-self._y
+        if y > self.image.get_height()-1:
+            return (-1,-1,-1,-1)
         try:
-            array = image.get_pixels()
+            array = self.image.get_pixels()
             if array is not None:
-                offset = (y*image.get_width()+x)*4
+                offset = (y*self.image.get_width()+x)*4
                 r,g,b,a = ord(array[offset]), ord(array[offset+1]),\
                           ord(array[offset+2]), ord(array[offset+3])
-                return (a<<24)+(b<<16)+(g<<8)+r
-            return 0
+                return (r,g,b,a)
+            else:
+                return (-1,-1,-1,-1)
         except IndexError:
             print "Index Error: %d %d" % (len(array), offset)
-            return 0
+            return (-1,-1,-1,-1)
diff --git a/tawindow.py b/tawindow.py
index 7ab79e0..8c15123 100644
--- a/tawindow.py
+++ b/tawindow.py
@@ -838,7 +838,9 @@ class TurtleArtWindow():
             elif spr.type == 'selector':
                 self._select_category(spr)
             elif spr.type == 'category':
-                pass
+                r,g,b,a = spr.get_pixel((x, y))
+                if (r == 255 and g == 0) or g == 255:
+                    self._hide_palette()
 
     """
     Block pressed
--
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