| 1 | /** |
| 2 | * |
| 3 | */ |
| 4 | package de.uka.ipd.sdq.pcmbench.tabs.operations; |
| 5 | |
| 6 | import org.eclipse.emf.transaction.RecordingCommand; |
| 7 | import org.eclipse.emf.transaction.TransactionalEditingDomain; |
| 8 | import org.eclipse.emf.transaction.util.TransactionUtil; |
| 9 | import org.eclipse.jface.viewers.TableViewer; |
| 10 | import org.eclipse.swt.events.SelectionEvent; |
| 11 | import org.eclipse.swt.events.SelectionListener; |
| 12 | |
| 13 | import de.uka.ipd.sdq.pcm.repository.EventType; |
| 14 | import de.uka.ipd.sdq.pcmbench.tabs.generic.SelectionChangedListener; |
| 15 | |
| 16 | /** |
| 17 | * Cell value delete listener for event types. |
| 18 | * |
| 19 | * @author Benjamin Klatt |
| 20 | */ |
| 21 | public class EventTypeDeleteCellValueListener extends SelectionChangedListener implements SelectionListener { |
| 22 | |
| 23 | |
| 24 | private TableViewer viewer; |
| 25 | |
| 26 | /** Constructor */ |
| 27 | public EventTypeDeleteCellValueListener(TableViewer viewer) { |
| 28 | this.viewer = viewer; |
| 29 | } |
| 30 | |
| 31 | /* (non-Javadoc) |
| 32 | * @see org.eclipse.swt.events.SelectionAdapter#widgetSelected(org.eclipse.swt.events.SelectionEvent) |
| 33 | */ |
| 34 | public void widgetSelected(SelectionEvent e) { |
| 35 | |
| 36 | final EventType eventType = (EventType) getSelectedElement(); |
| 37 | |
| 38 | TransactionalEditingDomain editingDomain = TransactionUtil |
| 39 | .getEditingDomain(eventType); |
| 40 | |
| 41 | RecordingCommand recCommand = new RecordingCommand(editingDomain) { |
| 42 | @Override |
| 43 | protected void doExecute() { |
| 44 | eventType.getParameter__EventType().setDataType__Parameter(null); |
| 45 | } |
| 46 | }; |
| 47 | |
| 48 | recCommand.setDescription("Set event type parameter type to null"); |
| 49 | editingDomain.getCommandStack().execute(recCommand); |
| 50 | |
| 51 | viewer.refresh(); |
| 52 | } |
| 53 | |
| 54 | /* (non-Javadoc) |
| 55 | * @see org.eclipse.swt.events.SelectionListener#widgetDefaultSelected(org.eclipse.swt.events.SelectionEvent) |
| 56 | */ |
| 57 | public void widgetDefaultSelected(SelectionEvent e) { |
| 58 | // The implementation is not necessary. |
| 59 | } |
| 60 | } |