fix animation issue

SO's auto rotation has its own rotation logic that ends at fixed positions. This collides with the "to nearest" option whose aim is to rotate to the next sensible state taking into account from what position the rotation was started.

Thus the solution is to disable SO's auto rotation while the cube is rotated.

src/Gui/NaviCube.cpp

@@ -945,9 +945,7 @@ void NaviCubeImplementation::handleResize() {
 		m_PrevWidth = view[0];
 		m_PrevHeight = view[1];
 		m_View3DInventorViewer->getSoRenderManager()->scheduleRedraw();
-
 	}
-
 }
 
 void NaviCubeImplementation::drawNaviCube(bool pickMode) {
@@ -1294,6 +1292,12 @@ bool NaviCubeImplementation::mouseReleased(short x, short y) {
 		ParameterGrp::handle hGrpNavi = App::GetApplication().GetParameterGroupByPath("User parameter:BaseApp/Preferences/NaviCube");
 		bool toNearest = hGrpNavi->GetBool("NaviRotateToNearest", true);
 
+		// 3D animation (UseAutoRotatio) collides with the rotation to the nearest state
+		// thus when enabled, disable them temprarily for the cube rotation
+		bool UseAutoRotation = hGrp->GetBool("UseAutoRotation", false);
+		if (UseAutoRotation && toNearest)
+			m_View3DInventorViewer->setAnimationEnabled(false);
+
 		switch (pick) {
 		default:
 			return false;
@@ -1624,6 +1628,10 @@ bool NaviCubeImplementation::mouseReleased(short x, short y) {
 			handleMenu();
 			break;
 		}
+
+		// re-anable UseAutoRotation after the cube rotation was done
+		if (UseAutoRotation && toNearest)
+			m_View3DInventorViewer->setAnimationEnabled(true);
 	}
 	return true;
 }