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java.lang.Objectbibliothek.gui.dock.dockable.DockHierarchyObserver
public class DockHierarchyObserver
A helper class that is able to send DockHierarchyEvent
s to
DockHierarchyListener
s. A Dockable
might have one instance
of an observer. Whenever the parent-station of the Dockable changes, it
calls update()
and the observer ensures that all events are
send properly. The observer is notified when the any super-parent changes.
Constructor Summary | |
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DockHierarchyObserver(Dockable owner)
Creates a new observer. |
Method Summary | |
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void |
addDockHierarchyListener(DockHierarchyListener listener)
Stores a listener which is informed when the path of the owner has changed. |
void |
controllerChanged(DockController controller)
Invoked by the owner in order to fire a DockHierarchyEvent |
void |
controllerChanged(DockHierarchyEvent event)
Invoked whenever the controller of dockable has changed |
protected void |
fireControllerChanged(DockController controller)
Informs all listeners that the controller of the owner has been changed. |
protected void |
fireHierarchyChanged()
Fires a DockHierarchyEvent to all registered listeners. |
void |
hierarchyChanged(DockHierarchyEvent event)
Called when the path of the observed Dockable has been changed. |
void |
removeDockHierarchyListener(DockHierarchyListener listener)
Removes an earlier stored listener. |
void |
update()
Builds up a new path of parents and adds this listeners to each parent. |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
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public DockHierarchyObserver(Dockable owner)
owner
- the Dockable for which events are firedMethod Detail |
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public void hierarchyChanged(DockHierarchyEvent event)
DockHierarchyListener
Dockable
has been changed.
hierarchyChanged
in interface DockHierarchyListener
event
- the new pathpublic void controllerChanged(DockHierarchyEvent event)
DockHierarchyListener
dockable
has changed
controllerChanged
in interface DockHierarchyListener
event
- the current path and controllerpublic void controllerChanged(DockController controller)
DockHierarchyEvent
controller
- the new controllerpublic void addDockHierarchyListener(DockHierarchyListener listener)
listener
- the new listenerpublic void removeDockHierarchyListener(DockHierarchyListener listener)
listener
- the listener to removeprotected void fireHierarchyChanged()
DockHierarchyEvent
to all registered listeners.
protected void fireControllerChanged(DockController controller)
controller
- the new controllerpublic void update()
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