Inheritance diagram for osgGA::GUIEventHandler:
Public Member Functions | |
GUIEventHandler () | |
GUIEventHandler (const GUIEventHandler &, const osg::CopyOp &) | |
META_Object (osgGA, GUIEventHandler) | |
virtual const CompositeGUIEventHandler * | getComposite () const |
virtual CompositeGUIEventHandler * | getComposite () |
virtual bool | handle (const GUIEventAdapter &, GUIActionAdapter &) |
virtual void | accept (GUIEventHandlerVisitor &) |
virtual void | getUsage (osg::ApplicationUsage &) const |
The GUIEvent is supplied by a GUIEventAdapter. Feedback resulting from the handle method is supplied by a GUIActionAdapter, which allows the GUIEventHandler to ask the GUI to take some action in response to an incoming event.
For example, consider a Trackball Viewer class which takes mouse events and manipulates a scene camera in response. The Trackball Viewer is a GUIEventHandler, and receives the events via the handle method. If the user 'throws' the model, the Trackball Viewer class can detect this via the incoming events, and request that the GUI set up a timer callback to continually redraw the view. This request is made via the GUIActionAdapter class.
|
|
|
|
|
Accept visits from GUIEventHandler visitors Reimplemented in osgGA::CompositeGUIEventHandler, osgGA::MatrixManipulator, and osgGA::StateSetManipulator. |
|
Returns 0 if this GUIEventHandler is not a CompositeGUIEventHandler. Reimplemented in osgGA::CompositeGUIEventHandler. |
|
Returns 0 if this GUIEventHandler is not a CompositeGUIEventHandler. Reimplemented in osgGA::CompositeGUIEventHandler. |
|
Get the keyboard and mouse usage of this manipulator. Reimplemented in osgGA::AnimationPathManipulator, osgGA::DriveManipulator, osgGA::FlightManipulator, osgGA::CompositeGUIEventHandler, osgGA::KeySwitchMatrixManipulator, osgGA::NodeTrackerManipulator, osgGA::StateSetManipulator, osgGA::TerrainManipulator, osgGA::TrackballManipulator, and osgProducer::ViewerEventHandler. |
|
Handle events, return true if handled, false otherwise. Reimplemented in osgGA::AnimationPathManipulator, osgGA::DriveManipulator, osgGA::FlightManipulator, osgGA::CompositeGUIEventHandler, osgGA::KeySwitchMatrixManipulator, osgGA::MatrixManipulator, osgGA::NodeTrackerManipulator, osgGA::StateSetManipulator, osgGA::TerrainManipulator, and osgGA::TrackballManipulator. |
|
|