[GRASS-dev] [GRASS GIS] #753: Map elements (scalebar, legend, etc) frozen and crash GUI

GRASS GRASS developer
1

#753: Map elements (scalebar, legend, etc) frozen and crash GUI
------------------------------+---------------------------------------------
Reporter: cmbarton | Owner: grass-dev@lists.osgeo.org
     Type: defect | Status: new
Priority: major | Milestone: 6.5.0
Component: wxGUI | Version: svn-develbranch6
Keywords: legend, barscale | Platform: MacOSX
      Cpu: OSX/Intel |
------------------------------+---------------------------------------------
In the current version of the wxpython GUI in GRASS 6.5 compiled today,
all map elements (formerly overlays) are frozen once they are displayed.
Attempting to move one with a mouse will crash the GUI.

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Ticket URL: <http://trac.osgeo.org/grass/ticket/753&gt;
GRASS GIS <http://grass.osgeo.org>

2

#753: Map elements (scalebar, legend, etc) frozen and crash GUI
-----------------------+----------------------------------------------------
  Reporter: cmbarton | Owner: grass-dev@lists.osgeo.org
      Type: defect | Status: new
  Priority: major | Milestone: 6.5.0
Component: wxGUI | Version: svn-develbranch6
Resolution: | Keywords: legend, barscale
  Platform: MacOSX | Cpu: OSX/Intel
-----------------------+----------------------------------------------------
Comment (by cmbarton):

Looking at the Mac crash reporter, it lists the last items before the
crash as...

0 _core_.so 0x00567536
wxMemoryBufferData::ResizeIfNeeded(unsigned long) + 18
1 libwx_macud-2.8.0.dylib 0x010a53ff
wxBitmapRefData::UseAlpha(bool) + 153
2 libwx_macud-2.8.0.dylib 0x010a5570 wxBitmap::UseAlpha() +
28
3 libwx_macud-2.8.0.dylib 0x010b2b27
wxMemoryDC::DoSelect(wxBitmap const&) + 167
4 _grass6_wxvdigit.so 0x0280e47b
gwxPseudoDC::FindObjects(int, int, int, wxColour const&) + 917
(pseudodc.cpp:528)
5 _grass6_wxvdigit.so 0x0281f088
_wrap_PseudoDC_FindObjects + 890 (grass6_wxvdigit_wrap.cpp:4700)

So it looks like this problem may be caused by some recent change in the
local PseudoDC created for wxdigit.

Michael

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Ticket URL: <http://trac.osgeo.org/grass/ticket/753#comment:1&gt;
GRASS GIS <http://grass.osgeo.org>

3

#753: Map elements (scalebar, legend, etc) frozen and crash GUI
-----------------------+----------------------------------------------------
  Reporter: cmbarton | Owner: grass-dev@lists.osgeo.org
      Type: defect | Status: new
  Priority: major | Milestone: 6.5.0
Component: wxGUI | Version: svn-develbranch6
Resolution: | Keywords: legend, barscale
  Platform: MacOSX | Cpu: OSX/Intel
-----------------------+----------------------------------------------------
Comment (by cmbarton):

Further information. If you have a version of wxpython installed that does
not match the one used for compilation, the digitizer does not load and
the map elements are NOT frozen.

Michael

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Ticket URL: <http://trac.osgeo.org/grass/ticket/753#comment:2&gt;
GRASS GIS <http://grass.osgeo.org>

4

#753: Map elements (scalebar, legend, etc) frozen and crash GUI
------------------------+---------------------------------------------------
  Reporter: cmbarton | Owner: grass-dev@lists.osgeo.org
      Type: defect | Status: new
  Priority: major | Milestone: 6.5.0
Component: Compiling | Version: svn-develbranch6
Resolution: | Keywords: legend, barscale
  Platform: MacOSX | Cpu: OSX/Intel
------------------------+---------------------------------------------------
Changes (by cmbarton):

* cc: kyngchaos (added)
  * component: wxGUI => Compiling

Comment:

This now seems to have something to do with compiling on a Mac, so I'm
changing the component from wxGUI to compiling.

A workaround is to bundle wxPython inside the Mac app. So there is still a
connection to wxPython, but it is not a GUI issue per se. The question
remains as to why this works if wxPython is bundled in the app, but causes
a serious crash if the same wxPython is not bundled.

Michael

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Ticket URL: <http://trac.osgeo.org/grass/ticket/753#comment:3&gt;
GRASS GIS <http://grass.osgeo.org>

5

#753: Map elements (scalebar, legend, etc) frozen and crash GUI
------------------------+---------------------------------------------------
  Reporter: cmbarton | Owner: grass-dev@lists.osgeo.org
      Type: defect | Status: new
  Priority: major | Milestone: 6.5.0
Component: Compiling | Version: svn-develbranch6
Resolution: | Keywords: legend, barscale
  Platform: MacOSX | Cpu: OSX/Intel
------------------------+---------------------------------------------------
Changes (by martin):

* cc: martin (removed)
* cc: martinl (added)

Comment:

I suspect martinl is the correct addressee for this stuff.

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Ticket URL: <http://trac.osgeo.org/grass/ticket/753#comment:4&gt;
GRASS GIS <http://grass.osgeo.org>

6

#753: Map elements (scalebar, legend, etc) frozen and crash GUI
-------------------------+--------------------------------------------------
  Reporter: cmbarton | Owner: grass-dev@lists.osgeo.org
      Type: defect | Status: closed
  Priority: major | Milestone: 6.5.0
Component: Compiling | Version: svn-develbranch6
Resolution: worksforme | Keywords: legend, barscale
  Platform: MacOSX | Cpu: OSX/Intel
-------------------------+--------------------------------------------------
Changes (by cmbarton):

  * status: new => closed
  * resolution: => worksforme

Comment:

I think this is due to a problem finding the correct wxpython. It may be
specific to a few Macs where MacPython is installed and not completely
removed. It seems solved by completely removing a competing Python
installation and reinstalling wxPython or by bundling wxpython with the
binary. I'm marking it closed as 'worksforme' unless it crops up again
under a different circumstance.

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Ticket URL: <http://trac.osgeo.org/grass/ticket/753#comment:5&gt;
GRASS GIS <http://grass.osgeo.org>