Issue 339 in pymt: MTList in MTKinetic crashes bacause entry in touch.userdata is missing/ deleted
py...@googlecode.com
Owner: ----
Labels: Type-Defect Priority-Medium
New issue 339 by j.brad...@napier.ac.uk: MTList in MTKinetic crashes
bacause entry in touch.userdata is missing/ deleted
http://code.google.com/p/pymt/issues/detail?id=339
What steps will reproduce the problem?
from pymt import *
# Create background window
w = getWindow()
# add kinetics to everything
kinetics = MTKinetic()
w.add_widget(kinetics)
# create a grid layout with 2 rows
layout = MTGridLayout(rows=2)
for x in xrange(22):
btn = MTToggleButton(label='label%d' % x)
layout.add_widget(btn)
# create a list of 400x200 size, and disable scrolling on Y axis
lst = MTList(size=(400, 200), do_y=False)
lst.add_widget(layout)
kinetics.add_widget(lst) # This doesn't. This "loses" some
userdata. "startpos" goes missing
#w.add_widget(lst) # This works
runTouchApp()
What is the expected output? What do you see instead?
The program crashes on a touch move event on the MTList:
File "/usr/lib64/python2.6/site-packages/pymt/ui/widgets/klist.py", line
182, in on_touch_move
cx, cy = touch.userdata['list.startpos']
KeyError: 'list.startpos'
This is when using a mouse for testing.
What version of the product are you using? On what operating system?
Version: HEAD, OS: Linux Fedora 11
Please provide any additional information below.
The userdata is set at line 174 of pymt/ui/widgets/klist.py:
touch.userdata['list.startpos'] = self.content_x, self.content_y
but on line 184 the dictionary entry is missing:
cx, cy = touch.userdata['list.startpos']