Move part of the display initialization to the constructor

Author: adam-urbanczyk

src/Visualization/Display3d.cpp

@@ -23,6 +23,21 @@
 Display3d::Display3d()
   : myIsOffscreen(false)
 {
+ // Create graphic driver
+ Handle(Aspect_DisplayConnection) aDisplayConnection = new Aspect_DisplayConnection();
+ if (GetGraphicDriver().IsNull())
+  {
+ GetGraphicDriver() = new OpenGl_GraphicDriver (aDisplayConnection);
+  }
+ 
+ // Create V3dViewer and V3d_View
+  myV3dViewer = new V3d_Viewer(GetGraphicDriver(), (short* const)"viewer");
+ 
+ // Create AISInteractiveViewer
+  myAISContext = new AIS_InteractiveContext(myV3dViewer);
+ 
+ // Create view
+  myV3dView = myV3dViewer->CreateView();
 }
 
 Display3d::~Display3d()
@@ -110,7 +125,6 @@ Standard_Boolean Display3d::SetSize(int size_x, int size_y)
       myWindow = new Cocoa_Window("Python OCC",
  0, 0,
                                   size_x, size_y);
- printf("Cocoa window created.\n");
       myWindow->SetVirtual (true);
 #else
       myWindow = new Xw_Window (myAISContext->CurrentViewer()->Driver()->GetDisplayConnection(),
@@ -153,41 +167,17 @@ Standard_Boolean Display3d::GetImageData(const char* &data, size_t &size, const
 
 void Display3d::Init(long window_handle)
 {
- printf(" ###### 3D rendering pipe initialisation #####\n");
- printf("Display3d class initialization starting ...\n");
- // Create graphic driver
- Handle(Aspect_DisplayConnection) aDisplayConnection = new Aspect_DisplayConnection();
- printf("Aspect_DisplayConnection created.\n");
- if (GetGraphicDriver().IsNull())
-  {
- GetGraphicDriver() = new OpenGl_GraphicDriver (aDisplayConnection);
-  }
- printf("Graphic_Driver created.\n");
- // Create V3dViewer and V3d_View
-  myV3dViewer = new V3d_Viewer(GetGraphicDriver(), (short* const)"viewer");
- printf("V3d_Viewer created.\n");
- // Create AISInteractiveViewer
-  myAISContext = new AIS_InteractiveContext(myV3dViewer);
- printf("AIS_InteractiveContext created.\n");
- // Create view
-  myV3dView = myV3dViewer->CreateView();	
- printf("V3d_View created\n");
  // Create Graphic Window
   #ifdef WNT
       myWindow = new WNT_Window((Aspect_Handle) window_handle);
- printf("WNT window created.\n");
   #elif defined(__APPLE__) && !defined(MACOSX_USE_GLX)
       myWindow = new Cocoa_Window((NSView *) window_handle);
- printf("Cocoa window created.\n");
   #else
       myWindow = new Xw_Window(myAISContext->CurrentViewer()->Driver()->GetDisplayConnection(),
                                (Aspect_Handle) window_handle);
- printf("Xw_Window created.\n");
   #endif
   myV3dView->SetWindow(myWindow);
  if (!myWindow->IsMapped()) myWindow->Map();
- printf("Display3d class successfully initialized.\n");
- printf(" ########################################\n");
 }
 
 void Display3d::ChangeRenderingParams(int Method,