vtkAffineRepresentation.h

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/*=========================================================================
 
  Program:   Visualization Toolkit
  Module:    vtkAffineRepresentation.h
 
  Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
  All rights reserved.
  See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
 
     This software is distributed WITHOUT ANY WARRANTY; without even
     the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
     PURPOSE.  See the above copyright notice for more information.
 
=========================================================================*/
#ifndef vtkAffineRepresentation_h
#define vtkAffineRepresentation_h
 
#include "vtkInteractionWidgetsModule.h" // For export macro
#include "vtkWidgetRepresentation.h"
 
class vtkTransform;
 
class VTKINTERACTIONWIDGETS_EXPORT vtkAffineRepresentation : public vtkWidgetRepresentation
{
public:
 
  vtkTypeMacro(vtkAffineRepresentation,vtkWidgetRepresentation);
  void PrintSelf(ostream& os, vtkIndent indent);
 
  virtual void GetTransform(vtkTransform *t) = 0;
 
 
  vtkSetClampMacro(Tolerance,int,1,100);
  vtkGetMacro(Tolerance,int);
 
//BTX
  // Enums define the state of the representation relative to the mouse pointer
  // position. Used by ComputeInteractionState() to communicate with the
  // widget.
  enum _InteractionState
  {
    Outside=0, Rotate, Translate, TranslateX, TranslateY, ScaleWEdge, ScaleEEdge,
    ScaleNEdge, ScaleSEdge, ScaleNE, ScaleSW, ScaleNW, ScaleSE,
    ShearEEdge, ShearWEdge, ShearNEdge, ShearSEdge,
    MoveOriginX, MoveOriginY, MoveOrigin
  };
//ETX
 
  virtual void ShallowCopy(vtkProp *prop);
 
protected:
  vtkAffineRepresentation();
  ~vtkAffineRepresentation();
 
  // The tolerance for selecting different parts of the widget.
  int Tolerance;
 
  // The internal transformation matrix
  vtkTransform *Transform;
 
private:
  vtkAffineRepresentation(const vtkAffineRepresentation&);  //Not implemented
  void operator=(const vtkAffineRepresentation&);  //Not implemented
};
 
#endif