MantisBT - VTK
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IDProjectCategoryView StatusDate SubmittedLast Update
0003897VTK(No Category)public2006-10-07 08:182016-08-12 09:54
Reporterkdsfinger 
Assigned ToKarthik Krishnan 
PriorityurgentSeveritymajorReproducibilityalways
StatusclosedResolutionmoved 
PlatformOSOS Version
Product Version 
Target VersionFixed in Version 
Project
Type
Summary0003897: vtkRenderWindowInteractor only can add one observer
DescriptionI found this bug in the Insight/InsightApplications/LiverTumorSegmentation/ImageSliceViewer.cpp
Althought it is used in itk, it's a vtk program.
In the function
void
  ImageSliceViewer
::SetInteractor( vtkRenderWindowInteractor * interactor )
{
  m_RenderWindow->SetInteractor( interactor );

  vtkInteractorStyleImage * interactorStyle = vtkInteractorStyleImage::New();
  interactor->SetInteractorStyle( interactorStyle );
  interactorStyle->Delete();
  interactor->AddObserver( ::vtkCommand::LeftButtonPressEvent, m_InteractorObserver );
  interactor->AddObserver( ::vtkCommand::LeftButtonReleaseEvent, m_InteractorObserver );
  interactor->AddObserver( ::vtkCommand::MouseMoveEvent, m_InteractorObserver );
}
The interactor only accept the first added observer and neglect the rest. In the above case, only the LeftButtonPressEvent is observed. If I switch the sequence such that the LeftButtonReleaseEvent is added before LeftButtonPressEvent, the LeftButtonReleaseEvent will be observed while the LeftButtonPressEvent is not.
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Issue History
Date ModifiedUsernameFieldChange
2008-02-06 10:46Jeff BaumesAssigned ToWill Schroeder => Karthik Krishnan
2011-06-16 13:11Zack GalbreathCategory => (No Category)
2016-08-12 09:54Kitware RobotNote Added: 0036890
2016-08-12 09:54Kitware RobotStatusexpired => closed
2016-08-12 09:54Kitware RobotResolutionopen => moved

Notes
(0036890)
Kitware Robot   
2016-08-12 09:54   
Resolving issue as `moved`.

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