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/*=========================================================================
Program: Visualization Toolkit
Module: vtkInteractorStyleTrackballActor.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 vtkInteractorStyleTrackballActor
* @brief manipulate objects in the scene independent of each other
*
* vtkInteractorStyleTrackballActor allows the user to interact with (rotate,
* pan, etc.) objects in the scene indendent of each other. In trackball
* interaction, the magnitude of the mouse motion is proportional to the
* actor motion associated with a particular mouse binding. For example,
* small left-button motions cause small changes in the rotation of the
* actor around its center point.
*
* The mouse bindings are as follows. For a 3-button mouse, the left button
* is for rotation, the right button for zooming, the middle button for
* panning, and ctrl + left button for spinning. (With fewer mouse buttons,
* ctrl + shift + left button is for zooming, and shift + left button is for
* panning.)
*
* @sa
* vtkInteractorStyleTrackballCamera vtkInteractorStyleJoystickActor
* vtkInteractorStyleJoystickCamera
*/
#ifndef vtkInteractorStyleTrackballActor_h
#define vtkInteractorStyleTrackballActor_h
#include "vtkInteractionStyleModule.h" // For export macro
#include "vtkInteractorStyle.h"
class vtkCellPicker;
class VTKINTERACTIONSTYLE_EXPORT vtkInteractorStyleTrackballActor : public vtkInteractorStyle
{
public:
static vtkInteractorStyleTrackballActor *New();
vtkTypeMacro(vtkInteractorStyleTrackballActor,vtkInteractorStyle);
void PrintSelf(ostream& os, vtkIndent indent);
//@{
/**
* Event bindings controlling the effects of pressing mouse buttons
* or moving the mouse.
*/
virtual void OnMouseMove();
virtual void OnLeftButtonDown();
virtual void OnLeftButtonUp();
virtual void OnMiddleButtonDown();
virtual void OnMiddleButtonUp();
virtual void OnRightButtonDown();
virtual void OnRightButtonUp();
//@}
// These methods for the different interactions in different modes
// are overridden in subclasses to perform the correct motion. Since
// they might be called from OnTimer, they do not have mouse coord parameters
// (use interactor's GetEventPosition and GetLastEventPosition)
virtual void Rotate();
virtual void Spin();
virtual void Pan();
virtual void Dolly();
virtual void UniformScale();
protected:
vtkInteractorStyleTrackballActor();
~vtkInteractorStyleTrackballActor();
void FindPickedActor(int x, int y);
void Prop3DTransform(vtkProp3D *prop3D,
double *boxCenter,
int NumRotation,
double **rotate,
double *scale);
double MotionFactor;
vtkProp3D *InteractionProp;
vtkCellPicker *InteractionPicker;
private:
vtkInteractorStyleTrackballActor(const vtkInteractorStyleTrackballActor&) VTK_DELETE_FUNCTION;
void operator=(const vtkInteractorStyleTrackballActor&) VTK_DELETE_FUNCTION;
};
#endif
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