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96 lines
3.3 KiB
C++
96 lines
3.3 KiB
C++
/*=========================================================================
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Program: Visualization Toolkit
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Module: vtkInteractorStyleTrackballActor.h
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Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
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All rights reserved.
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See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
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This software is distributed WITHOUT ANY WARRANTY; without even
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the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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PURPOSE. See the above copyright notice for more information.
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=========================================================================*/
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/**
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* @class vtkInteractorStyleTrackballActor
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* @brief manipulate objects in the scene independent of each other
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*
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* vtkInteractorStyleTrackballActor allows the user to interact with (rotate,
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* pan, etc.) objects in the scene indendent of each other. In trackball
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* interaction, the magnitude of the mouse motion is proportional to the
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* actor motion associated with a particular mouse binding. For example,
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* small left-button motions cause small changes in the rotation of the
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* actor around its center point.
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*
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* The mouse bindings are as follows. For a 3-button mouse, the left button
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* is for rotation, the right button for zooming, the middle button for
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* panning, and ctrl + left button for spinning. (With fewer mouse buttons,
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* ctrl + shift + left button is for zooming, and shift + left button is for
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* panning.)
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*
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* @sa
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* vtkInteractorStyleTrackballCamera vtkInteractorStyleJoystickActor
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* vtkInteractorStyleJoystickCamera
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*/
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#ifndef vtkInteractorStyleTrackballActor_h
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#define vtkInteractorStyleTrackballActor_h
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#include "vtkInteractionStyleModule.h" // For export macro
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#include "vtkInteractorStyle.h"
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class vtkCellPicker;
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class VTKINTERACTIONSTYLE_EXPORT vtkInteractorStyleTrackballActor : public vtkInteractorStyle
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{
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public:
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static vtkInteractorStyleTrackballActor* New();
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vtkTypeMacro(vtkInteractorStyleTrackballActor, vtkInteractorStyle);
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void PrintSelf(ostream& os, vtkIndent indent) override;
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//@{
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/**
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* Event bindings controlling the effects of pressing mouse buttons
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* or moving the mouse.
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*/
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void OnMouseMove() override;
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void OnLeftButtonDown() override;
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void OnLeftButtonUp() override;
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void OnMiddleButtonDown() override;
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void OnMiddleButtonUp() override;
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void OnRightButtonDown() override;
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void OnRightButtonUp() override;
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//@}
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// These methods for the different interactions in different modes
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// are overridden in subclasses to perform the correct motion. Since
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// they might be called from OnTimer, they do not have mouse coord parameters
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// (use interactor's GetEventPosition and GetLastEventPosition)
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void Rotate() override;
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void Spin() override;
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void Pan() override;
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void Dolly() override;
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void UniformScale() override;
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protected:
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vtkInteractorStyleTrackballActor();
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~vtkInteractorStyleTrackballActor() override;
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void FindPickedActor(int x, int y);
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void Prop3DTransform(
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vtkProp3D* prop3D, double* boxCenter, int NumRotation, double** rotate, double* scale);
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double MotionFactor;
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vtkProp3D* InteractionProp;
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vtkCellPicker* InteractionPicker;
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private:
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vtkInteractorStyleTrackballActor(const vtkInteractorStyleTrackballActor&) = delete;
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void operator=(const vtkInteractorStyleTrackballActor&) = delete;
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};
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#endif
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