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// SPDX-FileCopyrightText: Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
// SPDX-License-Identifier: BSD-3-Clause
/**
* @class vtkInteractorStyleTrackballCamera
* @brief interactive manipulation of the camera
*
* vtkInteractorStyleTrackballCamera 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 vtkInteractorStyleTrackballCamera_h
#define vtkInteractorStyleTrackballCamera_h
#include "vtkInteractionStyleModule.h" // For export macro
#include "vtkInteractorStyle.h"
#include "vtkWrappingHints.h" // For VTK_MARSHALAUTO
VTK_ABI_NAMESPACE_BEGIN
class VTKINTERACTIONSTYLE_EXPORT VTK_MARSHALAUTO vtkInteractorStyleTrackballCamera
: public vtkInteractorStyle
{
public:
static vtkInteractorStyleTrackballCamera* New();
vtkTypeMacro(vtkInteractorStyleTrackballCamera, 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);
///@}
protected:
vtkInteractorStyleTrackballCamera();
~vtkInteractorStyleTrackballCamera() override;
double MotionFactor;
virtual void Dolly(double factor);
private:
vtkInteractorStyleTrackballCamera(const vtkInteractorStyleTrackballCamera&) = delete;
void operator=(const vtkInteractorStyleTrackballCamera&) = delete;
};
VTK_ABI_NAMESPACE_END
#endif
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