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Rendering/vtkInteractorStyleImage.h

00001 /*=========================================================================
00002 
00003   Program:   Visualization Toolkit
00004   Module:    $RCSfile: vtkInteractorStyleImage.h,v $
00005   Language:  C++
00006 
00007   Copyright (c) 1993-2002 Ken Martin, Will Schroeder, Bill Lorensen 
00008   All rights reserved.
00009   See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
00010 
00011      This software is distributed WITHOUT ANY WARRANTY; without even 
00012      the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR 
00013      PURPOSE.  See the above copyright notice for more information.
00014 
00015 =========================================================================*/
00062 #ifndef __vtkInteractorStyleImage_h
00063 #define __vtkInteractorStyleImage_h
00064 
00065 #include "vtkInteractorStyleTrackballCamera.h"
00066 
00067 // Motion flags
00068 
00069 #define VTKIS_WINDOW_LEVEL 1024
00070 #define VTKIS_PICK         1025
00071 
00072 class VTK_RENDERING_EXPORT vtkInteractorStyleImage : public vtkInteractorStyleTrackballCamera
00073 {
00074 public:
00075   static vtkInteractorStyleImage *New();
00076   vtkTypeRevisionMacro(vtkInteractorStyleImage, vtkInteractorStyleTrackballCamera);
00077   void PrintSelf(ostream& os, vtkIndent indent);
00078 
00080 
00081   vtkGetVector2Macro(WindowLevelStartPosition,int);
00082   vtkGetVector2Macro(WindowLevelCurrentPosition,int);
00084   
00086 
00088   virtual void OnMouseMove();
00089   virtual void OnLeftButtonDown();
00090   virtual void OnLeftButtonUp();
00091   virtual void OnRightButtonDown();
00092   virtual void OnRightButtonUp();
00094 
00096   virtual void OnChar();
00097 
00098   // These methods for the different interactions in different modes
00099   // are overridden in subclasses to perform the correct motion. Since
00100   // they might be called from OnTimer, they do not have mouse coord parameters
00101   // (use interactor's GetEventPosition and GetLastEventPosition)
00102   virtual void WindowLevel();
00103   virtual void Pick();
00104   
00105   // Interaction mode entry points used internally.  
00106   virtual void StartWindowLevel();
00107   virtual void EndWindowLevel();
00108   virtual void StartPick();
00109   virtual void EndPick();
00110 
00111 protected:
00112   vtkInteractorStyleImage();
00113   ~vtkInteractorStyleImage();
00114 
00115   int WindowLevelStartPosition[2];
00116   int WindowLevelCurrentPosition[2];
00117  
00118 private:
00119   vtkInteractorStyleImage(const vtkInteractorStyleImage&);  // Not implemented.
00120   void operator=(const vtkInteractorStyleImage&);  // Not implemented.
00121 };
00122 
00123 #endif