make SoFCUnifiedSelection work with nested children in 3DView

src/Gui/Document.h

@@ -168,7 +168,7 @@ public:
     /// Attach a view (get called by the MDIView constructor)
     void attachView(Gui::BaseView* pcView, bool bPassiv=false);
     /// Detach a view (get called by the MDIView destructor)
-    void detachView(Gui::BaseView* pcView, bool bPassiv=false);
+    void detachView(Gui::BaseView* pcView, bool bPassiv=false); 
     /// helper for selection
     ViewProvider* getViewProviderByPathFromTail(SoPath * path) const;
     /// call update on all attached views

src/Gui/SoFCUnifiedSelection.h

@@ -23,15 +23,15 @@
 #ifndef GUI_SOFCUNIFIEDSELECTION_H
 #define GUI_SOFCUNIFIEDSELECTION_H
 
-# ifdef FC_OS_MACOSX
-# include <OpenGL/gl.h>
-# else
+# ifdef FC_OS_MACOSX
+# include <OpenGL/gl.h>
+# else
 # ifdef FC_OS_WIN32
 #  define NOMINMAX
 #  include <windows.h>
-# endif
-# include <GL/gl.h>
-# endif
+# endif
+# include <GL/gl.h>
+# endif
 
 #include <Inventor/nodes/SoSubNode.h>
 #include <Inventor/nodes/SoSeparator.h>

src/Gui/View3DInventor.cpp

@@ -156,6 +156,7 @@ View3DInventor::View3DInventor(Gui::Document* pcDocument, QWidget* parent,
 
     // create the inventor widget and set the defaults
     _viewer->setDocument(this->_pcDocument);
+    _viewer->setDocument(this->_pcDocument);
     stack->addWidget(_viewer->getWidget());
     // http://forum.freecadweb.org/viewtopic.php?f=3&t=6055&sid=150ed90cbefba50f1e2ad4b4e6684eba
     // describes a minor error but trying to fix it leads to a major issue

src/Gui/View3DInventorViewer.cpp

@@ -513,16 +513,16 @@ void View3DInventorViewer::init()
     } catch (...) {
         Base::Console().Warning("Failed to set up gestures. Unknown error.\n");
     }
-    
+
     //create the cursors
     QBitmap cursor = QBitmap::fromData(QSize(ROTATE_WIDTH, ROTATE_HEIGHT), rotate_bitmap);
     QBitmap mask = QBitmap::fromData(QSize(ROTATE_WIDTH, ROTATE_HEIGHT), rotate_mask_bitmap);
     spinCursor = QCursor(cursor, mask, ROTATE_HOT_X, ROTATE_HOT_Y);
-    
+
     cursor = QBitmap::fromData(QSize(ZOOM_WIDTH, ZOOM_HEIGHT), zoom_bitmap);
     mask = QBitmap::fromData(QSize(ZOOM_WIDTH, ZOOM_HEIGHT), zoom_mask_bitmap);
     zoomCursor = QCursor(cursor, mask, ZOOM_HOT_X, ZOOM_HOT_Y);
-    
+
     cursor = QBitmap::fromData(QSize(PAN_WIDTH, PAN_HEIGHT), pan_bitmap);
     mask = QBitmap::fromData(QSize(PAN_WIDTH, PAN_HEIGHT), pan_mask_bitmap);
     panCursor = QCursor(cursor, mask, PAN_HOT_X, PAN_HOT_Y);
@@ -858,7 +858,7 @@ void View3DInventorViewer::setSceneGraph(SoNode* root)
 
     SoSearchAction sa;
     sa.setNode(this->backlight);
-    //we want the rendered scene with all lights and cameras, viewer->getSceneGraph would return 
+    //we want the rendered scene with all lights and cameras, viewer->getSceneGraph would return
     //the geometry scene only
     SoNode* scene = this->getSoRenderManager()->getSceneGraph();
     if (scene && scene->getTypeId().isDerivedFrom(SoSeparator::getClassTypeId())) {
@@ -1462,7 +1462,7 @@ void View3DInventorViewer::renderScene(void)
 
     for (std::list<GLGraphicsItem*>::iterator it = this->graphicsItems.begin(); it != this->graphicsItems.end(); ++it)
         (*it)->paintGL();
-    
+
     //fps rendering
     if (fpsEnabled) {
         std::stringstream stream;

src/Gui/View3DInventorViewer.h

@@ -341,7 +341,7 @@ public:
     NavigationStyle* navigationStyle() const;
 
     void setDocument(Gui::Document *pcDocument);
-    
+
     virtual PyObject *getPyObject(void);
 
 protected: