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91 lines
3.3 KiB
91 lines
3.3 KiB
/*=========================================================================
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Program: Visualization Toolkit
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Module: $RCSfile: vtkInteractorStyleTrackballActor.h,v $
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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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// .NAME vtkInteractorStyleTrackballActor - manipulate objects in the scene independent of each other
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// .SECTION Description
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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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// .SECTION See Also
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// vtkInteractorStyleTrackballCamera vtkInteractorStyleJoystickActor
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// vtkInteractorStyleJoystickCamera
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#ifndef __vtkInteractorStyleTrackballActor_h
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#define __vtkInteractorStyleTrackballActor_h
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#include "vtkInteractorStyle.h"
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class vtkCellPicker;
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class VTK_RENDERING_EXPORT vtkInteractorStyleTrackballActor : public vtkInteractorStyle
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{
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public:
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static vtkInteractorStyleTrackballActor *New();
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vtkTypeRevisionMacro(vtkInteractorStyleTrackballActor,vtkInteractorStyle);
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void PrintSelf(ostream& os, vtkIndent indent);
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// Description:
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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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virtual void OnMouseMove();
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virtual void OnLeftButtonDown();
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virtual void OnLeftButtonUp();
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virtual void OnMiddleButtonDown();
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virtual void OnMiddleButtonUp();
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virtual void OnRightButtonDown();
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virtual void OnRightButtonUp();
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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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virtual void Rotate();
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virtual void Spin();
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virtual void Pan();
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virtual void Dolly();
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virtual void UniformScale();
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protected:
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vtkInteractorStyleTrackballActor();
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~vtkInteractorStyleTrackballActor();
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void FindPickedActor(int x, int y);
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void Prop3DTransform(vtkProp3D *prop3D,
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double *boxCenter,
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int NumRotation,
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double **rotate,
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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&); // Not implemented.
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void operator=(const vtkInteractorStyleTrackballActor&); // Not implemented.
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};
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#endif
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