[Bugs] #4378 Physics UNSP: Physics crashes when adding rectangles with the touch screen

[Sugar Labs Bugs]

#4378: Physics crashes when adding rectangles with the touch screen
------------------------------------------+---------------------------------
    Reporter:  carrott                    |          Owner:  garycmartin                
        Type:  defect                     |         Status:  new                        
    Priority:  Unspecified by Maintainer  |      Milestone:  Unspecified by Release Team
   Component:  Physics                    |        Version:  Unspecified                
    Severity:  Unspecified                |       Keywords:                             
Distribution:  OLPC                       |   Status_field:  Unconfirmed                
------------------------------------------+---------------------------------
 Sometimes physics crashes when you add a rectangle immediately after
 selecting the rectangle tool using the touch screen. See the log below.

 If you touch the rectangle tool and then touch the canvas right next to
 the menu bar, about 1/3 of the time physics crashes. When physics crashes
 it just disappears. Repeatedly touching the rectangle tool followed by the
 canvas will quickly cause the crash. Using the mouse does not seem to
 cause a crash.

 Physics 11 on build 13.1.0 for XO-4 (build 22) on XO-4 B1 with new tinted
 touchscreen.


 {{{
 ** Message: pygobject_register_sinkfunc is deprecated (HippoCanvasBox)
 1358140144.858504 WARNING root: KeepButton has been deprecated since Sugar
 0.94 and should not be used in newly written code.
 1358140144.881680 WARNING root: No gtk.AccelGroup in the top level window.
 1358140144.908473 WARNING root: No gtk.AccelGroup in the top level window.
 /usr/lib/python2.7/site-packages/sugar/graphics/toolbarbox.py:117:
 Warning: g_object_set_qdata: assertion `G_IS_OBJECT (object)' failed
   self.props.palette.add(self.page_widget)
 1358140144.978492 WARNING root: No gtk.AccelGroup in the top level window.
 1358140145.002877 WARNING root: No gtk.AccelGroup in the top level window.
 1358140145.018469 WARNING root: No gtk.AccelGroup in the top level window.
 1358140145.038474 WARNING root: No gtk.AccelGroup in the top level window.
 1358140145.078498 WARNING root: No gtk.AccelGroup in the top level window.
 1358140145.101892 WARNING root: No gtk.AccelGroup in the top level window.
 1358140145.118490 WARNING root: No gtk.AccelGroup in the top level window.
 1358140145.147814 WARNING root: No gtk.AccelGroup in the top level window.
 1358140145.168495 WARNING root: No gtk.AccelGroup in the top level window.
 1358140145.188683 WARNING root: No gtk.AccelGroup in the top level window.
 1358140145.208493 WARNING root: No gtk.AccelGroup in the top level window.
 1358140145.248496 WARNING root: No gtk.AccelGroup in the top level window.
 /usr/lib/python2.7/site-packages/sugar/graphics/window.py:194: Warning:
 g_object_set_qdata: assertion `G_IS_OBJECT (object)' failed
   self.__vbox.pack_start(toolbar_box, False)
 1358140145.263873 WARNING root: No gtk.AccelGroup in the top level window.
 /usr/lib/python2.7/site-packages/sugar/graphics/toolbarbox.py:45: Warning:
 g_object_set_qdata: assertion `G_IS_OBJECT (object)' failed
   self.parent.owner.pack_start(self.page_widget)
 1358140145.270414 WARNING root: No gtk.AccelGroup in the top level window.
 1358140171.211955 ERROR olpcgames.canvas: Uncaught top-level exception:
 Traceback (most recent call last):
   File "/home/olpc/Activities/Physics.activity/olpcgames/canvas.py", line
 122, in _start
     fn()
   File "/home/olpc/Activities/Physics.activity/physics.py", line 133, in
 main
     game.run()
   File "/home/olpc/Activities/Physics.activity/physics.py", line 86, in
 run
     self.currentTool.handleEvents(event)
   File "/home/olpc/Activities/Physics.activity/tools.py", line 74, in
 handleEvents
     return self.handleToolEvent(event)
   File "/home/olpc/Activities/Physics.activity/tools.py", line 153, in
 handleToolEvent
     self.game.world.add.rect(self.rect.center,
 AttributeError: 'NoneType' object has no attribute 'center'

 Exception in thread Thread-1:
 Traceback (most recent call last):
   File "/usr/lib/python2.7/threading.py", line 551, in __bootstrap_inner
     self.run()
   File "/usr/lib/python2.7/threading.py", line 504, in run
     self.__target(*self.__args, **self.__kwargs)
   File "/home/olpc/Activities/Physics.activity/olpcgames/canvas.py", line
 122, in _start
     fn()
   File "/home/olpc/Activities/Physics.activity/physics.py", line 133, in
 main
     game.run()
   File "/home/olpc/Activities/Physics.activity/physics.py", line 86, in
 run
     self.currentTool.handleEvents(event)
   File "/home/olpc/Activities/Physics.activity/tools.py", line 74, in
 handleEvents
     return self.handleToolEvent(event)
   File "/home/olpc/Activities/Physics.activity/tools.py", line 153, in
 handleToolEvent
     self.game.world.add.rect(self.rect.center,
 AttributeError: 'NoneType' object has no attribute 'center'

 * Pygame selected as renderer
 Exited with status 0, pid 923 data (None, <open file '<fdopen>', mode 'w'
 at 0x10d9cd8>, '649fce4f2896771f524b28e2d53ac2cc2ed046d3')
 }}}

-- 
Ticket URL: <http://bugs.sugarlabs.org/ticket/4378>
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