lib/cpExtensions/Visualization/ImageInteractorStyle.h

   1 #ifndef __CPEXTENSIONS__VISUALIZATION__IMAGEINTERACTORSTYLE__H__
   2 #define __CPEXTENSIONS__VISUALIZATION__IMAGEINTERACTORSTYLE__H__
   3
   4 #include <vector>
   5
   6 #include <vtkInteractorStyleImage.h>
   7 #include <vtkOrientationMarkerWidget.h>
   8 #include <vtkPropPicker.h>
   9 #include <vtkSmartPointer.h>
  10
  11 #include <cpExtensions/cpExtensions_Export.h>
  12
  13 // -------------------------------------------------------------------------
  14 #define cpPlugins_ImageInteractorStyle_ObserverMacro( e )               \
  15   inline unsigned long Add##e##Observer( vtkCommand* observer )         \
  16   { return( this->AddObserver( Self::e##Event, observer ) ); }          \
  17   inline void Remove##e##Observer( unsigned long tag )                  \
  18   { this->RemoveObserver( tag ); }                                      \
  19   inline void Remove##e##Observer( vtkCommand* observer )               \
  20   { this->RemoveObserver( observer ); }                                 \
  21   inline void Remove##e##Observers( )                                   \
  22   { this->RemoveObservers( Self::e##Event ); }
  23
  24 namespace cpExtensions
  25   {
  26     namespace Visualization
  27     {
  28       class ImageSliceActors;
  29       class MPRActors;
  30
  31       /**
  32        */
  33       class cpExtensions_EXPORT ImageInteractorStyle
  34         : public vtkInteractorStyleImage
  35       {
  36       public:
  37         typedef ImageInteractorStyle Self;
  38
  39         enum InteractionMode
  40         {
  41           NavigationMode = 0,
  42           DeformationMode
  43         };
  44
  45       public:
  46         vtkTypeMacro( ImageInteractorStyle, vtkInteractorStyleImage );
  47
  48         cpPlugins_ImageInteractorStyle_ObserverMacro( DoubleClick );
  49         cpPlugins_ImageInteractorStyle_ObserverMacro( Cursor );
  50         cpPlugins_ImageInteractorStyle_ObserverMacro( Radius );
  51
  52       public:
  53         static Self* New( );
  54
  55         void Configure(
  56           ImageSliceActors* slice_actors,
  57           MPRActors* mpr_actors = NULL
  58           );
  59         void AssociateInteractor( vtkRenderWindowInteractor* interactor );
  60
  61         void SetModeToNavigation( );
  62         void SetModeToDeformation( );
  63         virtual void SetInteractor(
  64           vtkRenderWindowInteractor* interactor, const int& axis
  65           );
  66
  67         // Description:
  68         // Event bindings controlling the effects of pressing mouse buttons
  69         // or moving the mouse.
  70         virtual void OnMouseMove( );
  71         virtual void OnLeftButtonDown( );
  72         virtual void OnLeftButtonUp( );
  73         virtual void OnMiddleButtonDown( );
  74         virtual void OnMiddleButtonUp( );
  75         virtual void OnRightButtonDown( );
  76         virtual void OnRightButtonUp( );
  77         virtual void OnMouseWheelForward( );
  78         virtual void OnMouseWheelBackward( );
  79
  80         // Description:
  81         // Override the "fly-to" (f keypress) for images.
  82         virtual void OnChar( );
  83
  84         // These methods for the different interactions in different modes
  85         // are overridden in subclasses to perform the correct motion. Since
  86         // they might be called from OnTimer, they do not have mouse coord
  87         // parameters (use interactor's GetEventPosition and
  88         // GetLastEventPosition)
  89
  90         virtual void Rotate( ) { }
  91         virtual void Spin( )   { }
  92         virtual void Zoom( )   { }
  93         virtual void Pick( )   { }
  94         virtual void Slice( )  { }
  95         virtual void WindowLevel( );
  96
  97         // Interaction mode entry points used internally.
  98         virtual void StartPick( )  { }
  99         virtual void EndPick( )    { }
 100         virtual void StartSlice( ) { }
 101         virtual void EndSlice( )   { }
 102         virtual void StartWindowLevel( );
 103         virtual void EndWindowLevel( );
 104
 105         // New events
 106         virtual void StartCursorMoving( );
 107         virtual void EndCursorMoving( );
 108         virtual void StartRadiusMoving( );
 109         virtual void EndRadiusMoving( );
 110
 111       protected:
 112         ImageInteractorStyle( );
 113         virtual ~ImageInteractorStyle( );
 114
 115         void _RenderAssociateInteractors( );
 116         bool _PickPosition( double pos[ 3 ] );
 117         void _UpdateCursor( );
 118         void _UpdateRadius( );
 119
 120       private:
 121         // Purposely not implemented
 122         ImageInteractorStyle( const Self& );
 123         Self& operator=( const Self& );
 124
 125       protected:
 126         Self::InteractionMode Mode;
 127
 128         ImageSliceActors* m_SliceActors;
 129         MPRActors*        m_MPRActors;
 130
 131         vtkSmartPointer< vtkOrientationMarkerWidget > OrientationWidget;
 132         vtkSmartPointer< vtkPropPicker > PropPicker;
 133
 134         std::vector< vtkRenderWindowInteractor* > AssociatedInteractors;
 135
 136         bool CursorMoving;
 137         double Cursor[ 3 ];
 138
 139         bool RadiusMoving;
 140         double Radius[ 3 ];
 141         vtkSmartPointer< vtkPolyData > Circle;
 142         vtkSmartPointer< vtkPolyDataMapper > CircleMapper;
 143         vtkSmartPointer< vtkActor > CircleActor;
 144
 145       public:
 146         static const int CursorEvent;
 147         static const int RadiusEvent;
 148         static const int DoubleClickEvent;
 149       };
 150
 151     } // ecapseman
 152
 153 } // ecapseman
 154
 155 #endif // __CPEXTENSIONS__VISUALIZATION__IMAGEINTERACTORSTYLE__H__
 156
 157 // eof - $RCSfile$