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123 lines
4.0 KiB
123 lines
4.0 KiB
/* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2006 Robert Osfield |
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* |
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* This library is open source and may be redistributed and/or modified under |
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* the terms of the OpenSceneGraph Public License (OSGPL) version 0.0 or |
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* (at your option) any later version. The full license is in LICENSE file |
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* included with this distribution, and on the openscenegraph.org website. |
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* |
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* This library is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* OpenSceneGraph Public License for more details. |
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*/ |
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#ifndef OSGGA_DRIVEMANIPULATOR |
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#define OSGGA_DRIVEMANIPULATOR 1 |
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#include <osgGA/CameraManipulator> |
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#include <osg/Quat> |
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namespace osgGA{ |
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/** |
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DriveManipulator is a camera manipulator which provides drive-like |
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functionality. By default, the left mouse button accelerates, the right |
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mouse button decelerates, and the middle mouse button (or left and |
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right simultaneously) stops dead. |
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*/ |
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class OSGGA_EXPORT DriveManipulator : public CameraManipulator |
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{ |
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public: |
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DriveManipulator(); |
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virtual const char* className() const { return "Drive"; } |
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/** Get the position of the matrix manipulator using a 4x4 Matrix.*/ |
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virtual void setByMatrix(const osg::Matrixd& matrix); |
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/** Set the position of the matrix manipulator using a 4x4 Matrix.*/ |
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virtual void setByInverseMatrix(const osg::Matrixd& matrix) { setByMatrix(osg::Matrixd::inverse(matrix)); } |
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/** Get the position of the manipulator as 4x4 Matrix.*/ |
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virtual osg::Matrixd getMatrix() const; |
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/** Get the position of the manipulator as a inverse matrix of the manipulator, typically used as a model view matrix.*/ |
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virtual osg::Matrixd getInverseMatrix() const; |
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virtual void setNode(osg::Node*); |
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virtual const osg::Node* getNode() const; |
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virtual osg::Node* getNode(); |
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virtual void computeHomePosition(); |
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virtual void home(const GUIEventAdapter& ea,GUIActionAdapter& us); |
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virtual void init(const GUIEventAdapter& ea,GUIActionAdapter& us); |
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virtual bool handle(const GUIEventAdapter& ea,GUIActionAdapter& us); |
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/** Get the keyboard and mouse usage of this manipulator.*/ |
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virtual void getUsage(osg::ApplicationUsage& usage) const; |
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void setModelScale( double in_ms ) { _modelScale = in_ms; } |
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double getModelScale() const { return _modelScale; } |
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void setVelocity( double in_vel ) { _velocity = in_vel; } |
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double getVelocity() const { return _velocity; } |
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void setHeight( double in_h ) { _height = in_h; } |
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double getHeight() const { return _height; } |
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protected: |
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virtual ~DriveManipulator(); |
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bool intersect(const osg::Vec3d& start, const osg::Vec3d& end, osg::Vec3d& intersection, osg::Vec3d& normal) const; |
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/** Reset the internal GUIEvent stack.*/ |
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void flushMouseEventStack(); |
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/** Add the current mouse GUIEvent to internal stack.*/ |
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void addMouseEvent(const GUIEventAdapter& ea); |
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void computePosition(const osg::Vec3d& eye,const osg::Vec3d& lv,const osg::Vec3d& up); |
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/** For the given mouse movement calculate the movement of the camera. |
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* Return true if camera has moved and a redraw is required. |
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*/ |
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bool calcMovement(); |
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// Internal event stack comprising last two mouse events. |
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osg::ref_ptr<const GUIEventAdapter> _ga_t1; |
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osg::ref_ptr<const GUIEventAdapter> _ga_t0; |
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osg::observer_ptr<osg::Node> _node; |
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double _modelScale; |
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double _velocity; |
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double _height; |
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double _buffer; |
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enum SpeedControlMode { |
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USE_MOUSE_Y_FOR_SPEED, |
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USE_MOUSE_BUTTONS_FOR_SPEED |
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}; |
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SpeedControlMode _speedMode; |
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osg::Vec3d _eye; |
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osg::Quat _rotation; |
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double _pitch; |
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double _distance; |
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bool _pitchUpKeyPressed; |
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bool _pitchDownKeyPressed; |
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}; |
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} |
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#endif
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