It solves the problem on XP and Win7 on Qt 4.5 and 4.62
It isn't necessary on Linux (ubuntu 8.10/9.04 Qt 4.5/4.6.2) but doesn't cause any harm.
But I have #ifdef'ed it with WIN32. I can't test it on 64bit windows (not sure if x64 defines WIN32?)"
the workaround we discussed for adding/removing views in a composite
viewer at runtime. A dummy view is added to the viewer to always keep
it live.
Also, I added a #define to the Qt event relay methods to not override
them on a Windows system. This fixes the bug where duplicate events
are being sent and making it impossible to throw the trackball."
address some OS X issues. Most of these fixes were previously submitted by Julian Scheid. However, this patch however should not break the example for non-OS X builds and has been tested on 64-bit Linux as well as Mac OS X 10.5.
o The value returned by QWidget::winId() is not usable as input for
WindowData under OS X the way it is for both Windows and Unix. Julian's fix
for this uses the Carbon API. Since the fix for X11 in unknown, it is now
assumed that OSG has been built with OSG_WINDOWING_SYSTEM='Carbon' for this
example to work at all when running under OS X.
o The CompositeViewer version would hang on exit with the original timer start
argument. Changing the argument value to match the non-composite version
seemed to cure the hanging.
o Julian's patch altered the setGeometry position to 30/30 in order to see any
window decorations. I did not have this problem, but left his changes intact.
o The non-composite viewer needed it's camera initialization defered until
after the ViewerQOSG's Qt base class had been initialized. Otherwise, the view
did not cover the entire window.
"
with the original AdapterWidget implementation still available by default. The new implementation can be accessed by running:
osgviewerQT cow.osg --QOSGWidget
