From 89e9f185da418ada2f6d025499857e81aa0214fb Mon Sep 17 00:00:00 2001
From: Walter Bender <walter.bender@gmail.com>
Date: Sat, 19 Mar 2011 15:27:30 +0000
Subject: moved regeneration of palettes to show_palette method; added new example

---
(limited to 'pysamples/uturn.py')

diff --git a/pysamples/uturn.py b/pysamples/uturn.py
new file mode 100644
index 0000000..40d0a00
--- /dev/null
+++ b/pysamples/uturn.py
@@ -0,0 +1,42 @@
+#Copyright (c) 2011, Walter Bender
+
+#Permission is hereby granted, free of charge, to any person obtaining a copy
+#of this software and associated documentation files (the "Software"), to deal
+#in the Software without restriction, including without limitation the rights
+#to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+#copies of the Software, and to permit persons to whom the Software is
+#furnished to do so, subject to the following conditions:
+
+#The above copyright notice and this permission notice shall be included in
+#all copies or substantial portions of the Software.
+
+#THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+#IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+#FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+#AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+#LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+#OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+#THE SOFTWARE.
+
+#
+# This procedure is invoked when the user-definable block on the "extras"
+# palette is selected.
+
+def myblock(lc, arg):
+    ''' Add a uturn block to the 'turtle' palette '''
+    from TurtleArt.tapalette import make_palette
+    from TurtleArt.talogo import primitive_dictionary
+    from gettext import gettext as _
+    palette = make_palette('turtle')
+
+    palette.add_block('uturn',
+                      style='basic-style-extended-vertical',
+                      label=_('uturn'),
+                      prim_name='uturn',
+                      help_string=_('make a uturn'))
+    lc.tw.lc.def_prim('uturn', 0,
+                     lambda self: primitive_dictionary['set'](
+            'heading', lc.tw.canvas.seth,
+            lc.tw.canvas.heading + 180))
+
+    lc.tw.show_toolbar_palette(0, regenerate=True)
--
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