@Override
public void unbind(Dockable dockable) {
super.unbind(dockable);
bound--;
if (bound == 0) {
if (parent != null) {
parent.removeDockStationListener(adapter);
}
this.dockable.removeDockHierarchyListener(hierarchy);
parent = null;
}
}
@Override
public void bind(Dockable dockable) {
bound++;
if (bound == 1) {
this.dockable.addDockHierarchyListener(hierarchy);
parent = this.dockable.getDockParent();
if (parent != null) {
parent.addDockStationListener(adapter);
}
checkState();
}
super.bind(dockable);
}