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authorWalter Bender <walter.bender@gmail.com>2011-03-19 15:27:30 (GMT)
committer Walter Bender <walter.bender@gmail.com>2011-03-19 15:27:30 (GMT)
commit89e9f185da418ada2f6d025499857e81aa0214fb (patch)
treea0f930e9f7e8e76b1c08d407a197d937b2047c31 /pysamples
parentffe9fb3c748d723bebe2cfd9432b9d5b48c7b17d (diff)
moved regeneration of palettes to show_palette method; added new example
Diffstat (limited to 'pysamples')
-rw-r--r--pysamples/uturn.py42
1 files changed, 42 insertions, 0 deletions
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)