vtkContextInteractorStyle.h

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// SPDX-FileCopyrightText: Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
// SPDX-License-Identifier: BSD-3-Clause
#ifndef vtkContextInteractorStyle_h
#define vtkContextInteractorStyle_h
 
#include "vtkInteractorStyle.h"
#include "vtkNew.h"                  // For ivars
#include "vtkViewsContext2DModule.h" // For export macro
#include "vtkWeakPointer.h"          // For ivars
 
VTK_ABI_NAMESPACE_BEGIN
class vtkContextMouseEvent;
class vtkContextScene;
 
class VTKVIEWSCONTEXT2D_EXPORT vtkContextInteractorStyle : public vtkInteractorStyle
{
public:
  static vtkContextInteractorStyle* New();
  vtkTypeMacro(vtkContextInteractorStyle, vtkInteractorStyle);
  void PrintSelf(ostream& os, vtkIndent indent) override;
 
  void SetScene(vtkContextScene* scene);
 
  vtkContextScene* GetScene();
 
  virtual void OnSceneModified();
 
  void OnMouseMove() override;
 
  void OnLeftButtonDown() override;
 
  void OnLeftButtonUp() override;
 
  void OnLeftButtonDoubleClick() override;
 
  void OnMiddleButtonDown() override;
 
  void OnMiddleButtonUp() override;
 
  void OnMiddleButtonDoubleClick() override;
 
  void OnRightButtonDown() override;
 
  void OnRightButtonUp() override;
 
  void OnRightButtonDoubleClick() override;
 
  void OnMouseWheelForward() override;
 
  void OnMouseWheelBackward() override;
 
  virtual void OnSelection(unsigned int rect[5]);
 
  void OnChar() override;
 
  void OnKeyPress() override;
 
  void OnKeyRelease() override;
 
protected:
  vtkContextInteractorStyle();
  ~vtkContextInteractorStyle() override;
 
  static void ProcessSceneEvents(
    vtkObject* object, unsigned long event, void* clientdata, void* calldata);
 
  static void ProcessInteractorEvents(
    vtkObject* object, unsigned long event, void* clientdata, void* calldata);
 
  virtual void RenderNow();
 
  void BeginProcessingEvent();
 
  void EndProcessingEvent();
 
  vtkWeakPointer<vtkContextScene> Scene;
  vtkNew<vtkCallbackCommand> SceneCallbackCommand;
  vtkNew<vtkCallbackCommand> InteractorCallbackCommand;
  int ProcessingEvents;
  vtkMTimeType LastSceneRepaintMTime;
 
  int SceneTimerId;
  bool TimerCallbackInitialized;
 
private:
  vtkContextInteractorStyle(const vtkContextInteractorStyle&) = delete;
  void operator=(const vtkContextInteractorStyle&) = delete;
 
  void ConstructMouseEvent(vtkContextMouseEvent& event, int button);
  bool ProcessMousePress(const vtkContextMouseEvent& event);
};
 
VTK_ABI_NAMESPACE_END
#endif