vtkinteractorstyletrackballcamerastyle2.h

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

  Program:   Visualization Toolkit
  Module:    vtkInteractorStyleTrackballCamera22.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.

=========================================================================*/
/**
 * @class   vtkInteractorStyleTrackballCamera2
 * @brief   interactive manipulation of the camera
 *
 * vtkInteractorStyleTrackballCamera2 allows the user to interactively
 * manipulate (rotate, pan, etc.) the camera, the viewpoint of the scene.  In
 * trackball interaction, the magnitude of the mouse motion is proportional
 * to the camera motion associated with a particular mouse binding. For
 * example, small left-button motions cause small changes in the rotation of
 * the camera around its focal point. For a 3-button mouse, the left button
 * is for rotation, the right button for zooming, the middle button for
 * panning, ctrl + left button for spinning, and shift + right button for
 * environment rotation. (With fewer mouse buttons, ctrl + shift + left button
 * is for zooming, and shift + left button is for panning.)
 *
 * @sa
 * vtkInteractorStyleTrackballActor vtkInteractorStyleJoystickCamera
 * vtkInteractorStyleJoystickActor
 */

#ifndef vtkInteractorStyleTrackballCamera2_h
#define vtkInteractorStyleTrackballCamera2_h

#include "vtkInteractionStyleModule.h" // For export macro
#include "vtkInteractorStyle.h"
#include <vtkProperty.h>
class qtVtkItem;
class VTKINTERACTIONSTYLE_EXPORT vtkInteractorStyleTrackballCamera2 : public vtkInteractorStyle
{
public:
    static vtkInteractorStyleTrackballCamera2* New();
    vtkTypeMacro(vtkInteractorStyleTrackballCamera2, vtkInteractorStyle);
    void PrintSelf(ostream& os, vtkIndent indent) override;

    ///@{
    /**
   * Event bindings controlling the effects of pressing mouse buttons
   * or moving the mouse.
   */
    void OnMouseMove() override;
    void OnLeftButtonDown() override;
    void OnLeftButtonUp() override;
    void OnMiddleButtonDown() override;
    void OnMiddleButtonUp() override;
    void OnRightButtonDown() override;
    void OnRightButtonUp() override;
    void OnMouseWheelForward() override;
    void OnMouseWheelBackward() override;
    ///@}

    // These methods for the different interactions in different modes
    // are overridden in subclasses to perform the correct motion. Since
    // they are called by OnTimer, they do not have mouse coord parameters
    // (use interactor's GetEventPosition and GetLastEventPosition)
    void Rotate() override;
    void Spin() override;
    void Pan() override;
    void Dolly() override;
    void EnvironmentRotate() override;

    ///@{
    /**
   * Set the apparent sensitivity of the interactor style to mouse motion.
   */
    vtkSetMacro(MotionFactor, double);
    vtkGetMacro(MotionFactor, double);
    ///@}
    bool getIsModelSelected() const ;
    void setQtItem(qtVtkItem *item);
    /**
 * @brief vtkInteractorStyleTrackballCamera2
 * add key press event for del
 */
    void OnKeyDown() override;
protected:
    vtkInteractorStyleTrackballCamera2();
    ~vtkInteractorStyleTrackballCamera2() override;

    double MotionFactor;

    virtual void Dolly(double factor);

private:
    vtkInteractorStyleTrackballCamera2(const vtkInteractorStyleTrackballCamera2&) = delete;
    void operator=(const vtkInteractorStyleTrackballCamera2&) = delete;
    bool IsModelSelected ;
    vtkActor* LastPickedActor;
    vtkProperty* LastPickedProperty;
    vtkProp3D*  InteractionProp;
    qtVtkItem *qtItem;
};

#endif