[vtkusers] QVTKWidget is flickering

[José M. Rodriguez Bacallao]

I am using Archlinux, 64 and 32 bits, and using vtk 5.10.
I also tried setting self.view_manager.setUpdatesEnabled(False/True)
but nothing happens

On Mon, Jun 4, 2012 at 1:04 PM, Clinton Stimpson <clinton at elemtech.com> wrote:
>
> Which platform... VTK version ?
>
> On Monday, June 04, 2012 12:55:34 PM José M. Rodriguez Bacallao wrote:
>> hi folks, as I posted previously, I am trying to use QVTKWidget with
>> QStackedWidget, I have two QStackedWidget nested one inside the other.
>> For examples, I have a QMainWindow and as central widget is a
>> QStackWidget that manage what I call "applications". An application is
>> a simple QWidget, and, in my case, is a QWidget with a QStackWidget
>> inside it that manage QVTKWidget's (image viewers). The problem arise
>> when I add a QVTKWidget to the internal QStackedWidget, it show ok
>> but, has an annoying flickering and I canot allow this in a medical
>> application, here I post an example code to demostrate what I mean:
>>
>>
>> from PyQt4 import QtGui, QtCore
>> import images, vtk
>>
>>
>> class Workspace(QtGui.QMainWindow):
>>
>>     def __init__(self, parent=None):
>>         super(Workspace, self).__init__(parent)
>>
>>         self.main_tb = self.addToolBar('main')
>>         self.add_action = self.main_tb.addAction('Add viewer')
>>         self.add_action.triggered.connect(self.add_viewer)
>>
>>         self.app_manager = QtGui.QStackedWidget(self)
>>         self.app_manager.setStyleSheet('background: red;')
>>         self.setCentralWidget(self.app_manager)
>>
>>         self.workspace_app = QtGui.QWidget(self.app_manager)
>>         self.view_manager = QtGui.QStackedWidget(self.workspace_app)
>>         self.view_manager.setStyleSheet('background: blue;')
>>         self.workspace_app_layout = QtGui.QHBoxLayout(self.workspace_app)
>>         self.workspace_app_layout.addWidget(self.view_manager)
>>
>>         self.app_manager.addWidget(self.workspace_app)
>>         self.app_manager.setCurrentWidget(self.workspace_app)
>>
>>     def add_viewer(self):
>>         viewer = vtk.QVTKWidget(self)
>>         self.renderer = vtk.vtkRenderer()
>>         self.renderer.SetBackground(0, 0, 0)
>>         viewer.GetRenderWindow().AddRenderer(self.renderer)
>>         self.view_manager.addWidget(viewer)
>>         self.view_manager.setCurrentWidget(viewer)
>>
>>
>> if __name__ == '__main__':
>>     app = QtGui.QApplication([])
>>     w = Workspace()
>>     w.showFullScreen()
>>     app.exec_()
>>
>> any ideas please, I need to solve this issue as quickly as possible
>> because of my deadline!!!.
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> --
> Clinton Stimpson
> Elemental Technologies, Inc
> Computational Simulation Software, LLC
> www.csimsoft.com