vtkContextTransform.h

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/*=========================================================================

  Program:   Visualization Toolkit
  Module:    vtkContextItem.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 vtkContextTransform_h
#define vtkContextTransform_h

#include "vtkRenderingContext2DModule.h" // For export macro
#include "vtkAbstractContextItem.h"
#include "vtkSmartPointer.h" // Needed for SP ivars.
#include "vtkVector.h" // Needed for ivars.

class vtkTransform2D;

class VTKRENDERINGCONTEXT2D_EXPORT vtkContextTransform : public vtkAbstractContextItem
{
public:
  vtkTypeMacro(vtkContextTransform, vtkAbstractContextItem);
  virtual void PrintSelf(ostream &os, vtkIndent indent);

  static vtkContextTransform *New();

  virtual void Update();

  virtual bool Paint(vtkContext2D *painter);

  virtual void Translate(float dx, float dy);

  virtual void Scale(float dx, float dy);

  virtual void Rotate(float angle);

  virtual vtkTransform2D* GetTransform();

  virtual vtkVector2f MapToParent(const vtkVector2f& point);

  virtual vtkVector2f MapFromParent(const vtkVector2f& point);


  vtkSetMacro(PanMouseButton, int);
  vtkGetMacro(PanMouseButton, int);


  vtkSetMacro(PanModifier, int);
  vtkGetMacro(PanModifier, int);


  vtkSetMacro(SecondaryPanMouseButton, int);
  vtkGetMacro(SecondaryPanMouseButton, int);


  vtkSetMacro(SecondaryPanModifier, int);
  vtkGetMacro(SecondaryPanModifier, int);


  vtkSetMacro(ZoomMouseButton, int);
  vtkGetMacro(ZoomMouseButton, int);


  vtkSetMacro(ZoomModifier, int);
  vtkGetMacro(ZoomModifier, int);


  vtkSetMacro(SecondaryZoomMouseButton, int);
  vtkGetMacro(SecondaryZoomMouseButton, int);


  vtkSetMacro(SecondaryZoomModifier, int);
  vtkGetMacro(SecondaryZoomModifier, int);


  vtkSetMacro(ZoomOnMouseWheel, bool);
  vtkGetMacro(ZoomOnMouseWheel, bool);
  vtkBooleanMacro(ZoomOnMouseWheel, bool);


  vtkSetMacro(PanYOnMouseWheel, bool);
  vtkGetMacro(PanYOnMouseWheel, bool);
  vtkBooleanMacro(PanYOnMouseWheel, bool);

//BTX
  virtual bool Hit(const vtkContextMouseEvent &mouse);

  virtual bool MouseButtonPressEvent(const vtkContextMouseEvent &mouse);

  virtual bool MouseMoveEvent(const vtkContextMouseEvent &mouse);


  virtual bool MouseWheelEvent(const vtkContextMouseEvent &mouse, int delta);
//ETX

//BTX
protected:
  vtkContextTransform();
  ~vtkContextTransform();

  vtkSmartPointer<vtkTransform2D> Transform;

  int PanMouseButton;
  int PanModifier;
  int ZoomMouseButton;
  int ZoomModifier;
  int SecondaryPanMouseButton;
  int SecondaryPanModifier;
  int SecondaryZoomMouseButton;
  int SecondaryZoomModifier;

  bool ZoomOnMouseWheel;
  bool PanYOnMouseWheel;

  vtkVector2f ZoomAnchor;

private:
  vtkContextTransform(const vtkContextTransform &); // Not implemented.
  void operator=(const vtkContextTransform &);   // Not implemented.
//ETX
};

#endif //vtkContextTransform_h