add vtkHandlerWidget

src/Vtk/vtkHandlerWidget.h

@@ -35,9 +35,10 @@
 // Forward declarations of VTK classes in global namespace
 class vtkActor;
 class vtkCallbackCommand;
-class vtkPropPicker;
+class vtkCellPicker;
 class vtkTransform;
 class vtkObject;
+class vtkPlane;
 class vtkRenderWindowInteractor;
 
 namespace uLib {
@@ -73,9 +74,22 @@ public:
     ROT_Z,
     SCALE_X,
     SCALE_Y,
-    SCALE_Z
+    SCALE_Z,
+    ROT_CAM
   };
 
+  enum ReferenceFrame {
+    GLOBAL = 0,
+    LOCAL,
+    CENTER,
+    CENTER_LOCAL,
+    NORMAL, // Not implemented
+    PARENT  // Not implemented
+  };
+
+  void SetReferenceFrame(ReferenceFrame frame);
+  ReferenceFrame GetReferenceFrame() const { return this->m_Frame; }
+
   using ::vtk3DWidget::PlaceWidget;
   virtual void PlaceWidget(double bounds[6]) override;
   virtual void PlaceWidget() override;
@@ -87,17 +101,27 @@ public:
 protected:
   void CreateGizmos();
   void UpdateGizmoPosition();
+  void Highlight(::vtkProp *prop);
+
+  vtkSmartPointer<::vtkRenderer> m_OverlayRenderer;
+  ReferenceFrame m_Frame;
 
   int Interaction;
+  ::vtkProp *m_HighlightedProp;
+  double m_OriginalColor[3];
 
   // Visual components //
   vtkSmartPointer<::vtkActor> m_AxesX, m_AxesY, m_AxesZ;    // Arrows
   vtkSmartPointer<::vtkActor> m_RotX, m_RotY, m_RotZ;       // Rings
+  vtkSmartPointer<::vtkActor> m_RotCam;                     // Camera ring
   vtkSmartPointer<::vtkActor> m_ScaleX, m_ScaleY, m_ScaleZ; // Cubes
 
-  vtkSmartPointer<::vtkPropPicker> m_Picker;
+  vtkSmartPointer<::vtkPlane> m_ClipPlane;
+
+  vtkSmartPointer<::vtkCellPicker> m_Picker;
 
   double StartEventPosition[2];
+  double m_StartPickPosition[3];
   vtkSmartPointer<::vtkTransform> m_InitialTransform;
 
 private: