A while back I sent an email regarding a bug in CompositeViewer. Please see the text below. I've also reattached the code for convenience.
The bug still exists in the trunk code and I am currently trying to resolve it. I am trying to get a little better understanding before I submit any possible changes. Basically my question is when the frame of the window/graphics context is selected (but the mouse has not yet been over any views within the window), what view do you send/address events to? I think the main thing that I am wondering is since a context can contain multiple views, is there a "master" view per context? Thanks -Brad -----Original Message----- From: osg-users-boun...@lists.openscenegraph.org [mailto:osg-users-boun...@lists.openscenegraph.org] On Behalf Of Brad Huber Sent: Monday, September 27, 2010 9:07 AM To: 'OpenSceneGraph Users' Subject: Re: [osg-users] CompositeViewer issues Has anyone had a chance to try the sample program I posted to see if the bug is the same in Linux? Thanks -Brad -----Original Message----- From: osg-users-boun...@lists.openscenegraph.org [mailto:osg-users-boun...@lists.openscenegraph.org] On Behalf Of Brad Huber Sent: Thursday, September 23, 2010 1:22 PM To: 'OpenSceneGraph Users' Subject: Re: [osg-users] CompositeViewer issues Robert, Attached is a simple stripped down app that demonstrates the problem. The program creates two windows (2 views total). The 1st has a HUD and the 2nd doesn't. Resizing the 2nd window causes the HUD in the first window to resize (it shouldn't). I am reliably producing this bug on my Win7 machine. I'm quite confident that this bug will be reproducible on all Windows. I am a little bit less sure of Linux/Mac, etc. I've included a Visual Studio 2005 project but since there is only one source file it should be easy to get it building under Linux. Thanks -Brad -----Original Message----- From: osg-users-boun...@lists.openscenegraph.org [mailto:osg-users-boun...@lists.openscenegraph.org] On Behalf Of Robert Osfield Sent: Wednesday, September 22, 2010 2:25 AM To: OpenSceneGraph Users Subject: Re: [osg-users] CompositeViewer issues Hi Brad, Could you see if you can reproduce this problem with the one of the OSG examples, or a small tweak of one to reproduce this problem. If I can reproduce it reliably then there is a much better chance of spotting the culprit and finding a solution. Cheers, Robert. On Tue, Sep 21, 2010 at 10:27 PM, Brad Huber <br...@procerusuav.com> wrote: > Hello, > > > > I recently converted our osg based application over to use Composite Viewer > because we need multiple Views on the same scene graph. Im running > in to a > little snag which appears to be a bug in CompositeViewer. > > > > Simple way of explaining the manifestation of the issue is that I have > two Windows and two Views (one view per window) and they both have > event handlers attached to the views which react to the > osgGA::GUIEventAdapter::RESIZE event. Resizing works hunky dory for > view 0 > but it does not work correctly for view 1. I believe the culprit is related > to these lines of code found in CompositeViewer::eventTraversal(). > > > > osgViewer::View* masterView = getViewWithFocus() ? getViewWithFocus() : > _views[0].get(); > > . > > . > > . > > viewEventsMap[masterView].insert( viewEventsMap[masterView].end(), > gw_events.begin(), gw_events.end() ); > > > > The problem is that when resizing, apparently getViewWithFocus() > returns NULL (I guess because the mouse is over the window frame and > not the view within the window. Therefore a resize event is taken out > of the graphics window queue for the 2nd window and stuck into the > event queue for the 0 view (a mismatch). The effect for me is that > the when I resize one window the HUD I have set up in the other window > receives the resize event and changes which obviously isnt what I want J. > > > > This does seem to be somewhat intermittent and may be related to > whether your mouse tends to fall off the window frame towards the view > or away from > the view > > > > PS I dont have a solution in hand yet. I thought I would throw this > out there in case its a known issue or something. > > > > Thanks > > -Brad > > _______________________________________________ > osg-users mailing list > osg-users@lists.openscenegraph.org > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph. > org > > _______________________________________________ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org _______________________________________________ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
CompositeViewer_Playground.zi_
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