Refactor Navigation Cube

-Use std commands in menu coming with icons
-Only draggable if activated in menu
-Remove textures except labels and used gl fill instead
-Borders on surrounding buttons
-Fix some openGL issues
-Remove duplicate parameter managment. Kept and improved the one in View3DSettings
-Remove lots of other redundant code
-Replaced FontSize param with FontZoom and enabled auto zoom/size on labels.
-Merged BorderColor and TextColor to single EmphaseColor parameter
-Merged ButtonColor and FrontColor to BaseColor parameter
-Added ChamferSize parameter to control edge and corner size
-Use glDrawArrays() innstead of glBegin() and glEnd()
-Draw butt ends on RGB coordinate system
-Fixe issues where cube switch corner on resize window

src/Gui/View3DInventorViewer.cpp

@@ -1194,19 +1194,11 @@ void View3DInventorViewer::setNaviCubeCorner(int c)
         naviCube->setCorner(static_cast<NaviCube::Corner>(c));
 }
 
-NaviCube* View3DInventorViewer::getNavigationCube() const
+NaviCube* View3DInventorViewer::getNaviCube() const
 {
     return naviCube;
 }
 
-void View3DInventorViewer::updateNavigationCube()
-{
-    if (naviCube) {
-        delete naviCube;
-        naviCube = new NaviCube(this);
-    }
-}
-
 void View3DInventorViewer::setAxisCross(bool on)
 {
     SoNode* scene = getSceneGraph();