112 lines
3.5 KiB
C++
112 lines
3.5 KiB
C++
/* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2005 Robert Osfield
|
|
*
|
|
* This library is open source and may be redistributed and/or modified under
|
|
* the terms of the OpenSceneGraph Public License (OSGPL) version 0.0 or
|
|
* (at your option) any later version. The full license is in LICENSE file
|
|
* included with this distribution, and on the openscenegraph.org website.
|
|
*
|
|
* This library is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* OpenSceneGraph Public License for more details.
|
|
*/
|
|
|
|
#ifndef OSGGA_DRIVEMANIPULATOR
|
|
#define OSGGA_DRIVEMANIPULATOR 1
|
|
|
|
#include <osgGA/MatrixManipulator>
|
|
#include <osg/Quat>
|
|
|
|
namespace osgGA{
|
|
|
|
/**
|
|
DriveManipulator is a camera manipulator which provides drive-like
|
|
functionality. By default, the left mouse button accelerates, the right
|
|
mouse button decelerates, and the middle mouse button (or left and
|
|
right simultaneously) stops dead.
|
|
*/
|
|
|
|
class OSGGA_EXPORT DriveManipulator : public MatrixManipulator
|
|
{
|
|
public:
|
|
|
|
DriveManipulator();
|
|
|
|
virtual const char* className() const { return "Drive"; }
|
|
|
|
/** set the position of the matrix manipulator using a 4x4 Matrix.*/
|
|
virtual void setByMatrix(const osg::Matrixd& matrix);
|
|
|
|
/** set the position of the matrix manipulator using a 4x4 Matrix.*/
|
|
virtual void setByInverseMatrix(const osg::Matrixd& matrix) { setByMatrix(osg::Matrixd::inverse(matrix)); }
|
|
|
|
/** get the position of the manipulator as 4x4 Matrix.*/
|
|
virtual osg::Matrixd getMatrix() const;
|
|
|
|
/** get the position of the manipulator as a inverse matrix of the manipulator, typically used as a model view matrix.*/
|
|
virtual osg::Matrixd getInverseMatrix() const;
|
|
|
|
virtual void setNode(osg::Node*);
|
|
|
|
virtual const osg::Node* getNode() const;
|
|
|
|
virtual osg::Node* getNode();
|
|
|
|
virtual void computeHomePosition();
|
|
|
|
virtual void home(const GUIEventAdapter& ea,GUIActionAdapter& us);
|
|
|
|
virtual void init(const GUIEventAdapter& ea,GUIActionAdapter& us);
|
|
|
|
virtual bool handle(const GUIEventAdapter& ea,GUIActionAdapter& us);
|
|
|
|
/** Get the keyboard and mouse usage of this manipulator.*/
|
|
virtual void getUsage(osg::ApplicationUsage& usage) const;
|
|
|
|
protected:
|
|
|
|
virtual ~DriveManipulator();
|
|
|
|
/** Reset the internal GUIEvent stack.*/
|
|
void flushMouseEventStack();
|
|
|
|
/** Add the current mouse GUIEvent to internal stack.*/
|
|
void addMouseEvent(const GUIEventAdapter& ea);
|
|
|
|
void computePosition(const osg::Vec3d& eye,const osg::Vec3d& lv,const osg::Vec3d& up);
|
|
|
|
/** For the give mouse movement calculate the movement of the camera.
|
|
Return true is camera has moved and a redraw is required.*/
|
|
bool calcMovement();
|
|
|
|
// Internal event stack comprising last three mouse events.
|
|
osg::ref_ptr<const GUIEventAdapter> _ga_t1;
|
|
osg::ref_ptr<const GUIEventAdapter> _ga_t0;
|
|
|
|
osg::ref_ptr<osg::Node> _node;
|
|
|
|
double _modelScale;
|
|
double _velocity;
|
|
double _height;
|
|
double _buffer;
|
|
|
|
enum SpeedControlMode {
|
|
USE_MOUSE_Y_FOR_SPEED,
|
|
USE_MOUSE_BUTTONS_FOR_SPEED
|
|
};
|
|
|
|
SpeedControlMode _speedMode;
|
|
|
|
osg::Vec3d _eye;
|
|
osg::Quat _rotation;
|
|
double _pitch;
|
|
double _distance;
|
|
|
|
bool _pitchUpKeyPressed;
|
|
bool _pitchDownKeyPressed;
|
|
};
|
|
|
|
}
|
|
|
|
#endif
|