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/GraphicsView/GraphicsView.hpp

@@ -0,0 +1,67 @@
+
+#ifndef GraphicsView_hpp
+#define GraphicsView_hpp
+
+#include <QGraphicsView>
+#include <QResizeEvent>
+#include "QVTKWidget2.h"
+#include "OpenGLScene.hpp"
+#include "vtkGenericOpenGLRenderWindow.h"
+#include "vtkRenderer.h"
+#include "vtkTextActor3D.h"
+
+class GraphicsView : public QGraphicsView
+{
+  public:
+    GraphicsView()
+    {
+      mCtx = new QGLContext(QGLFormat());
+      mWidget = new QVTKWidget2(mCtx);
+      this->setViewport(mWidget);
+      this->setViewportUpdateMode(QGraphicsView::FullViewportUpdate);
+      this->setScene(new OpenGLScene(mCtx, this));
+      vtkSmartPointer<vtkRenderer> ren = vtkSmartPointer<vtkRenderer>::New();
+      ren->SetBackground(0,0,0);
+      ren->SetBackground2(1,1,1);
+      ren->SetGradientBackground(1);
+      vtkSmartPointer<vtkTextActor3D> textActor = vtkSmartPointer<vtkTextActor3D>::New();
+      textActor->SetInput("Qt & VTK!!");
+      ren->AddViewProp(textActor);
+      ren->ResetCamera();
+      mWidget->GetRenderWindow()->AddRenderer(ren);
+      mWidget->GetRenderWindow()->SetSwapBuffers(0);  // don't let VTK swap buffers on us
+      mWidget->setAutoBufferSwap(true);
+    }
+    ~GraphicsView()
+    {
+    }
+
+  protected:
+
+    void drawBackground(QPainter* p, const QRectF& vtkNotUsed(r))
+      {
+#if QT_VERSION >= 0x040600
+      p->beginNativePainting();
+#endif
+      mWidget->GetRenderWindow()->PushState();
+      mWidget->GetRenderWindow()->OpenGLInitState();
+      mWidget->GetRenderWindow()->Render();
+      mWidget->GetRenderWindow()->PopState();
+#if QT_VERSION >= 0x040600
+      p->endNativePainting();
+#endif
+      }
+
+    void resizeEvent(QResizeEvent *event)
+      {
+        // give the same size to the scene that his widget has
+        if (scene())
+            scene()->setSceneRect(QRect(QPoint(0, 0), event->size()));
+        QGraphicsView::resizeEvent(event);
+        mWidget->GetRenderWindow()->SetSize(event->size().width(), event->size().height());
+      }
+    QGLContext* mCtx;
+    QVTKWidget2* mWidget;
+};
+
+#endif