public void handleEvent(Event event) {
// Ensure that this event is for a MMenuItem
if (!(event.getProperty(UIEvents.EventTags.ELEMENT) instanceof MToolBarElement)) return;
MToolBarElement itemModel =
(MToolBarElement) event.getProperty(UIEvents.EventTags.ELEMENT);
String attName = (String) event.getProperty(UIEvents.EventTags.ATTNAME);
if (UIEvents.UIElement.TOBERENDERED.equals(attName)) {
Object obj = itemModel.getParent();
if (!(obj instanceof MToolBar)) {
return;
}
ToolBarManager parent = getManager((MToolBar) obj);
if (itemModel.isToBeRendered()) {
if (parent != null) {
modelProcessSwitch(parent, itemModel);
parent.update(true);
ToolBar tb = parent.getControl();
if (tb != null && !tb.isDisposed()) {
tb.pack(true);
tb.getShell().layout(new Control[] {tb}, SWT.DEFER);
}
}
} else {
IContributionItem ici = modelToContribution.remove(itemModel);
if (ici != null && parent != null) {
parent.remove(ici);
}
if (ici != null) {
ici.dispose();
}
}
} else if (UIEvents.UIElement.VISIBLE.equals(attName)) {
IContributionItem ici = getContribution(itemModel);
if (ici == null) {
return;
}
ici.setVisible(itemModel.isVisible());
ToolBarManager parent = (ToolBarManager) ((ContributionItem) ici).getParent();
if (parent != null) {
parent.markDirty();
parent.update(true);
// MUIElement tbModel = itemModel.getParent();
// disposeToolbarIfNecessary((MToolBar) tbModel);
ToolBar tb = parent.getControl();
if (tb != null && !tb.isDisposed()) {
tb.pack(true);
tb.getShell().layout(new Control[] {tb}, SWT.DEFER);
}
}
}
}
/**
* @param parentManager
* @param itemModel
* @param ci
*/
private void addToManager(
ToolBarManager parentManager, MToolBarElement model, IContributionItem ci) {
MElementContainer<MUIElement> parent = model.getParent();
// technically this shouldn't happen
if (parent == null) {
parentManager.add(ci);
} else {
int index = parent.getChildren().indexOf(model);
// shouldn't be -1, but better safe than sorry
if (index > parentManager.getSize() || index == -1) {
parentManager.add(ci);
} else {
parentManager.insert(index, ci);
}
}
}
