[vtkusers] VTK 4.0 and JInternalFrame (java 1.4)

[Jeff Lee]

An update -
I subclassed JDesktopPane and overrode the default DesktopManager (i 
implemented activateFrame(JinternalFrame f) {} as an no-op and 
everything works great (except none of the frames get de-selected).  So 
the problem lies somewhere in the activation of the frame.  I will 
continue to track this down, but probably no more today.
-Jeff

Jeff Lee wrote:

> Hi Thomas,
> JInternalFrame has some very different ways of managing repaints on 
> its children - it tries to be smart in its handling of damaged areas, 
> and uses a RepaintManager to do all of this.  Are you using the cvs 
> version of vtk?   Here are some of my observations:  Adding 
> vtkInternalPanels to a JDesktopPane with other JInternalFrames causes 
> the panels to disappear when you click on the borders in a different 
> order than you added them to the desktop (this happens regardless of 
> what is inside the other JInternalFrames).  If you click on the 
> vtkPanel after it turns grey, your error occurs.  If you don't have 
> the drag mode set to LIVE in the JDesktopPane, the code will hang or 
> die.  I have noticed that if I don't call setVisible(true) on the 
> internal frame, the vtkPanel shows up, and you can interact with it 
> fine - but you can't move it.  Overlapping works fine (but you still 
> get heavyweight/lightweight behavior of course).  My gut feeling is 
> that this is a problem with the JDesktopPane and how it manages its 
> children (DesktopManager)  I will dig around and try to find out why 
> this is happening and try to suggest some possible solutions.  -Jeff
> Thomas Krueger wrote:
>
>> Hi all,
>> we use j2sdk 1.4 and VTK 4.0 on linux. As default unnamed packages 
>> (classes
>> without package definition) are no longer allowed in java 1.4, we 
>> moved the
>> vtkPanel to the vtk package (with changes in Common/vtkJavaAwt.h).
>> This configuration works fine with most applications but causes an 
>> error with
>> JInternalFrames.
>>
>> If we use the vtkPanel in JInternalFrames on a main Window, 
>> "overlapping" the
>> vtkPanel or minimizing the Frames causes the JVM to crash (see 
>> attached error).
>> The "overlapping" JInternalFrames appear behind the 
>> VTK-RenderWindows. In
>> contrast, the vtkPanel works fine, if we use separate JFrames.
>>
>> Any suggestions? Is there another way of getting vtkPanel to work 
>> with jdk1.4?
>> Thanks,
>> Tom
>>
>> --- error log ---
>> An unexpected exception has been detected in native code outside the VM.
>> Unexpected Signal : 11 occurred at PC=0x5FEA7B1C
>> Function=XMesaDitherColor+0x16D8
>> Library=/usr/lib/libGL.so.1
>>
>> Current Java thread:
>>     at vtk.vtkPanel.RenderInternal(Native Method)
>>     at vtk.vtkPanel.Render(vtkPanel.java:83)
>>     - locked <0x465a3bf8> (a vtk.vtkPanel)
>>     at vtk.vtkPanel.paint(vtkPanel.java:91)
>>     at sun.awt.RepaintArea.paint(RepaintArea.java:180)
>>     at sun.awt.motif.MComponentPeer.handleEvent(MComponentPeer.java:339)
>>     at java.awt.Component.dispatchEventImpl(Component.java:3586)
>>     at java.awt.Component.dispatchEvent(Component.java:3367)
>>     at java.awt.EventQueue.dispatchEvent(EventQueue.java:445)
>>     at
>> java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchThread.java:190) 
>>
>>     at
>> java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:144) 
>>
>>     at 
>> java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:138)
>>     at 
>> java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:130)
>>     at java.awt.EventDispatchThread.run(EventDispatchThread.java:98)
>>
>> Dynamic libraries:
>> 08048000-0804d000 r-xp 00000000 08:09 284674     
>> /home/j2sdk1.4.0/bin/java
>> ....(more on demand)....
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>
>
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