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vtk3DWidget.h

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00001 /*=========================================================================
00002 
00003   Program:   Visualization Toolkit
00004   Module:    $RCSfile: vtk3DWidget.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 __vtk3DWidget_h
00063 #define __vtk3DWidget_h
00064 
00065 #include "vtkInteractorObserver.h"
00066 
00067 class vtkDataSet;
00068 class vtkProp3D;
00069 
00070 class VTK_HYBRID_EXPORT vtk3DWidget : public vtkInteractorObserver
00071 {
00072 public:
00073   vtkTypeRevisionMacro(vtk3DWidget,vtkInteractorObserver);
00074   void PrintSelf(ostream& os, vtkIndent indent);
00075 
00077 
00084   virtual void PlaceWidget(float bounds[6]) = 0;
00085   void PlaceWidget();
00086   void PlaceWidget(float xmin, float xmax, float ymin, float ymax, 
00087                    float zmin, float zmax);
00089 
00091 
00094   virtual void SetProp3D(vtkProp3D*);
00095   vtkGetObjectMacro(Prop3D,vtkProp3D);
00097   
00099 
00102   virtual void SetInput(vtkDataSet*);
00103   vtkGetObjectMacro(Input,vtkDataSet);
00105   
00107 
00113   vtkSetClampMacro(PlaceFactor,float,0.01,VTK_LARGE_FLOAT);
00114   vtkGetMacro(PlaceFactor,float);
00116 
00118 
00122   vtkSetClampMacro(HandleSize,float,0.001,0.5);
00123   vtkGetMacro(HandleSize,float);
00125 
00126 protected:
00127   vtk3DWidget();
00128   ~vtk3DWidget();
00129 
00130   // Used to position and scale the widget initially
00131   vtkProp3D *Prop3D;
00132   vtkDataSet *Input;
00133   
00134   //has the widget ever been placed
00135   float PlaceFactor;
00136   int Placed; 
00137   void AdjustBounds(float bounds[6], float newBounds[6], float center[3]);
00138   
00139   //control the size of handles (if there are any)
00140   float InitialBounds[6];
00141   float InitialLength;
00142   float HandleSize;
00143   float SizeHandles(float factor);
00144   virtual void SizeHandles() {}//subclass in turn invokes parent's SizeHandles()
00145   
00146   //used to track the depth of the last pick; also interacts with handle sizing
00147   int   ValidPick;
00148   float LastPickPosition[3];
00149 
00150 private:
00151   vtk3DWidget(const vtk3DWidget&);  // Not implemented.
00152   void operator=(const vtk3DWidget&);  // Not implemented.
00153   
00154 };
00155 
00156 #endif