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) override;
 
  virtual void GetTransform(vtkTransform* t) = 0;
 
 
  vtkSetClampMacro(Tolerance, int, 1, 100);
  vtkGetMacro(Tolerance, int);
 
  // 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
  };
 
  void ShallowCopy(vtkProp* prop) override;
 
protected:
  vtkAffineRepresentation();
  ~vtkAffineRepresentation() override;
 
  // The tolerance for selecting different parts of the widget.
  int Tolerance;
 
  // The internal transformation matrix
  vtkTransform* Transform;
 
private:
  vtkAffineRepresentation(const vtkAffineRepresentation&) = delete;
  void operator=(const vtkAffineRepresentation&) = delete;
};
 
#endif