@Override
public void modelChanged(IModelChangedEvent event) {
if (event.getChangeType() == IModelChangedEvent.WORLD_CHANGED) {
fHeader = null;
markStale();
return;
}
if (getExportedPackageHeader().equals(event.getChangedProperty())) {
refresh();
// Bug 171896
// Since the model sends a CHANGE event instead of
// an INSERT event on the very first addition to the empty table
// Selection should fire here to take this first insertion into account
Object lastElement =
fPackageViewer.getElementAt(fPackageViewer.getTable().getItemCount() - 1);
if (lastElement != null) {
fPackageViewer.setSelection(new StructuredSelection(lastElement));
}
return;
}
Object[] objects = event.getChangedObjects();
for (Object changedObject : objects) {
if (changedObject instanceof ExportPackageObject) {
ExportPackageObject object = (ExportPackageObject) changedObject;
switch (event.getChangeType()) {
case IModelChangedEvent.INSERT:
fPackageViewer.add(object);
fPackageViewer.setSelection(new StructuredSelection(object), false);
fPackageViewer.getTable().setFocus();
break;
case IModelChangedEvent.REMOVE:
Table table = fPackageViewer.getTable();
int index = table.getSelectionIndex();
fPackageViewer.remove(object);
table.setSelection(index < table.getItemCount() ? index : table.getItemCount() - 1);
break;
default:
fPackageViewer.refresh(object);
}
}
}
}
private void updateButtons() {
Object[] selected = ((IStructuredSelection) fPackageViewer.getSelection()).toArray();
TablePart tablePart = getTablePart();
tablePart.setButtonEnabled(ADD_INDEX, canAddExportedPackages());
tablePart.setButtonEnabled(REMOVE_INDEX, isEditable() && selected.length > 0);
tablePart.setButtonEnabled(PROPERTIES_INDEX, shouldEnableProperties(selected));
tablePart.setButtonEnabled(
CALCULATE_USE_INDEX, isEditable() && fPackageViewer.getTable().getItemCount() > 0);
}