/** @was-generated */
@Override
public void activate() {
if (viewId == null) {
return;
}
// add self to global decorators registry
List list = (List) allDecorators.get(viewId);
if (list == null) {
list = new ArrayList(2);
list.add(this);
allDecorators.put(viewId, list);
} else if (!list.contains(this)) {
list.add(this);
}
// start listening to changes in resources
View view = (View) getDecoratorTarget().getAdapter(View.class);
if (view == null) {
return;
}
Diagram diagramView = view.getDiagram();
if (diagramView == null) {
return;
}
if (fileObserver == null) {
FileChangeManager.getInstance()
.addFileObserver(fileObserver = new MarkerObserver(diagramView));
}
}
/** @generated */
public void deactivate() {
if (viewId == null) {
return;
}
// remove self from global decorators registry
List list = (List) allDecorators.get(viewId);
if (list != null) {
list.remove(this);
if (list.isEmpty()) {
allDecorators.remove(viewId);
}
}
// stop listening to changes in resources if there are no more decorators
if (fileObserver != null && allDecorators.isEmpty()) {
FileChangeManager.getInstance().removeFileObserver(fileObserver);
fileObserver = null;
}
super.deactivate();
}