ParaView-5.0.1: Added the source-tree to ThirdParty-dev and patched as described in the README file

Resolves bug-report http://bugs.openfoam.org/view.php?id=2098

ParaView-5.0.1/VTK/Examples/GUI/Qt/GraphicsViewPython/GraphicsViewPython.py

@@ -0,0 +1,63 @@
+#!/usr/bin/env python
+
+import sys
+from PyQt4 import QtOpenGL,QtGui,QtCore
+import vtk
+
+class MyOpenGLScene(QtGui.QGraphicsScene):
+  def __init__(self, ctx):
+    super(MyOpenGLScene, self).__init__()
+    self.mCtx = ctx
+    self.mQVTKItem = vtk.QVTKGraphicsItem(self.mCtx)
+    self.addItem(self.mQVTKItem)
+    self.mQVTKItem.setGeometry(20,20,128,128)
+    self.mRen = vtk.vtkRenderer()
+    self.mQVTKItem.GetRenderWindow().AddRenderer(self.mRen)
+    cone = vtk.vtkConeSource()
+    mapper = vtk.vtkPolyDataMapper()
+    mapper.SetInputConnection(cone.GetOutputPort())
+    actor = vtk.vtkActor()
+    actor.SetMapper(mapper)
+    self.mRen.AddViewProp(actor)
+    self.mRen.ResetCamera()
+
+class MyGraphicsView(QtGui.QGraphicsView):
+  def __init__(self):
+    super(MyGraphicsView, self).__init__()
+    self.mWidget = vtk.QVTKWidget2()
+    self.setViewport(self.mWidget)
+    self.setViewportUpdateMode(QtGui.QGraphicsView.FullViewportUpdate)
+    self.mScene = MyOpenGLScene(self.mWidget.context())
+    self.setScene(self.mScene)
+    self.mRen = vtk.vtkRenderer()
+    self.mRen.SetBackground(0,0,0)
+    self.mRen.SetBackground2(1,1,1)
+    self.mRen.SetGradientBackground(1)
+    textActor = vtk.vtkTextActor3D()
+    textActor.SetInput("Qt & VTK!!")
+    self.mRen.AddViewProp(textActor)
+    self.mRen.ResetCamera()
+    self.mWidget.GetRenderWindow().AddRenderer(self.mRen)
+    self.mWidget.GetRenderWindow().SetSwapBuffers(0)
+
+  def resizeEvent(self, evt):
+    super(MyGraphicsView, self).resizeEvent(evt)
+    s = evt.size()
+    self.mWidget.GetRenderWindow().SetSize(s.width(), s.height())
+    self.scene().setSceneRect(0, 0, s.width(), s.height())
+
+  def drawBackground(self, painter, rect):
+    painter.beginNativePainting();
+    self.mWidget.GetRenderWindow().PushState();
+    self.mWidget.GetRenderWindow().Render();
+    self.mWidget.GetRenderWindow().PopState();
+    painter.endNativePainting();
+
+
+
+if __name__ == "__main__":
+  app = QtGui.QApplication(sys.argv)
+  win = MyGraphicsView()
+  win.show()
+  win.resize(800,600)
+  sys.exit(app.exec_())