vtkInteractiveArea.h

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/*=========================================================================
 
  Program:   Visualization Toolkit
  Module:    vtkInteractiveArea.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 vtkInteractiveArea_h
#define vtkInteractiveArea_h
 
#include "vtkChartsCoreModule.h" // For export macro
#include "vtkContextArea.h"
#include "vtkNew.h" // For vtkNew
 
class vtkContextTransform;
class vtkRectd;
 
class VTKCHARTSCORE_EXPORT vtkInteractiveArea : public vtkContextArea
{
public:
  vtkTypeMacro(vtkInteractiveArea, vtkContextArea);
 
  static vtkInteractiveArea* New();
  void PrintSelf(ostream& os, vtkIndent indent) override;
 
 
  bool Paint(vtkContext2D* painter) override;
  bool Hit(const vtkContextMouseEvent& mouse) override;
  bool MouseWheelEvent(const vtkContextMouseEvent& mouse, int delta) override;
  bool MouseMoveEvent(const vtkContextMouseEvent& mouse) override;
  bool MouseButtonPressEvent(const vtkContextMouseEvent& mouse) override;
 
protected:
  vtkInteractiveArea();
  ~vtkInteractiveArea() override;
 
 
  void SetAxisRange(vtkRectd const& data) override;
 
private:
  void RecalculateTickSpacing(vtkAxis* axis, int const numClicks);
 
  void ComputeViewTransform() override;
 
  void ComputeZoom(
    vtkVector2d const& origin, vtkVector2d& scale, vtkVector2d& shift, vtkVector2d& factor);
 
  class MouseActions;
  MouseActions* Actions;
 
  vtkInteractiveArea(const vtkInteractiveArea&) = delete;
  void operator=(const vtkInteractiveArea&) = delete;
};
 
#endif // vtkInteractiveArea_h