From 8f325e0ebb8444650829a2c7b9ce2510f672fb75 Mon Sep 17 00:00:00 2001
From: Walter Bender <walter.bender@gmail.com>
Date: Thu, 02 Feb 2012 19:43:11 +0000
Subject: adding support for hiding blocks on palette

---
(limited to 'TurtleArt/tablock.py')

diff --git a/TurtleArt/tablock.py b/TurtleArt/tablock.py
index 4015029..b809930 100644
--- a/TurtleArt/tablock.py
+++ b/TurtleArt/tablock.py
@@ -142,6 +142,7 @@ class Block:
         self._ei = 0
         self._font_size = [6.0, 4.5]
         self._image = None
+        self._visible = True
 
         self.block_methods = {
             'basic-style': self._make_basic_style,
@@ -211,6 +212,18 @@ class Block:
 
         self.block_list.append_to_list(self)
 
+    def get_visibility(self):
+        ''' Should block be visible on the palette? '''
+        return self._visible
+
+    def set_visibility(self, state):
+        ''' Should block be visible? '''
+        self._visible = state
+        if self._visible:
+            self.spr.restore()
+        else:
+            self.spr.hide()
+
     def expandable(self):
         """ Can this block be expanded? """
         if self.name in EXPANDABLE:
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