OpenSceneGraph/include/osgGA/FlightManipulator

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//C++ header - Open Scene Graph - Copyright (C) 1998-2001 Robert Osfield
//Distributed under the terms of the GNU Library General Public License (LGPL)
//as published by the Free Software Foundation.
#ifndef OSGGA_FLIGHTMANIPULATOR
#define OSGGA_FLIGHTMANIPULATOR 1
#include <osgGA/CameraManipulator>
namespace osgGA{
class OSGGA_EXPORT FlightManipulator : public CameraManipulator
{
public:
FlightManipulator();
virtual ~FlightManipulator();
/** Attach a node to the manipulator.
Automatically detaches previously attached node.
setNode(NULL) detaches previously nodes.
Is ignored by manipulators which do not require a reference model.*/
virtual void setNode(osg::Node*);
/** Return node if attached.*/
virtual const osg::Node* getNode() const;
/** Return node if attached.*/
virtual osg::Node* getNode();
/** Move the camera to the default position.
May be ignored by manipulators if home functionality is not appropriate.*/
virtual void home(const GUIEventAdapter& ea,GUIActionAdapter& us);
/** Start/restart the manipulator.*/
virtual void init(const GUIEventAdapter& ea,GUIActionAdapter& us);
/** handle events, return true if handled, false otherwise.*/
virtual bool handle(const GUIEventAdapter& ea,GUIActionAdapter& us);
enum YawControlMode {
YAW_AUTOMATICALLY_WHEN_BANKED,
NO_AUTOMATIC_YAW
};
/** Set the yaw control between no yaw and yawing when banked.*/
void setYawControlMode(YawControlMode ycm) { _yawMode = ycm; }
private:
/** Reset the internal GUIEvent stack.*/
void flushMouseEventStack();
/** Add the current mouse GUIEvent to internal stack.*/
void addMouseEvent(const GUIEventAdapter& ea);
/** 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;
float _modelScale;
float _velocity;
YawControlMode _yawMode;
};
}
#endif