[vtkusers] vtkInteractorStyleTrackballCamera problem with multiple views

[Kimmel, Jason]

Hi Alex,

I see your original message from Monday, so it seems it was posted successfully.

Regarding your question, I’m assuming each of the interactorstyles is in a different Qt widget?  If so, you could use Qt leave events to reset the state of the interactor whenever the mouse leaves the rendering area.  I’m not sure offhand if there’s a single method to reset the internal state of the interactorsyle, you may have to query GetState and then end whatever the interaction is.

Hope that helps,
Jason


Jason Kimmel
Sr Software Developer – Research & Technology
Albany Engineered Composites, Inc.
112 Airport Drive
Rochester, NH 03867
Phone:  +1.603.330.5959
www.albint.com/aec<http://www.albint.com/aec>




From: vtkusers [mailto:vtkusers-bounces at public.kitware.com] On Behalf Of Oleksandr Malyushytsky
Sent: Thursday, October 18, 2018 4:47 PM
To: vtkusers at public.kitware.com
Subject: Re: [vtkusers] vtkInteractorStyleTrackballCamera problem with multiple views

CAUTION: This email originated from outside Albany International Corp. Do not click links or open attachments unless you recognize the sender and know the content is safe.

For some reason I can't see my question in mail, so I am not sure was it posted, but was not replied or never ended up in the mailing list.

1. Could anybody confirm that it was posted on mailing list?
2. Can anybody give a hint how to notify interactor style (reset mode) when even propagated to other widget?

Best regards,
          Alex


On Mon, Oct 15, 2018 at 3:48 PM Oleksandr Malyushytsky <omalyushytskyvtkuser at gmail.com<mailto:omalyushytskyvtkuser at gmail.com>> wrote:
1. Push the left mouse button.
2. Drag the mouse out of the view, do not release it
3. Click and release right mouse button (or middle button, any button which was not grabbed). Release left mouse button.
4 In this state you can move mouse back to view. View will behave like left mouse button is clicked.

Problem is that only left button was grabbing a mouse. Releasing right mouse button will prevent interactorStyle from receiving  OnLeftButtonUp(),

so when you move mouse into the view  not even it will still remain  in previously set interaction state, but the appropriate mouse button will not be grabbed.

This seems like a bug and I would appreciate if anybody could at least point on work around.
It does not appear on my version of paraview, but I am not sure what fixed the behaviour.

(I use  vtk 8.1.1 with Qt 5.9)

Best regards,
      Alex
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