| /******************************************************************************* |
| * Copyright (C) 2007 The University of Manchester |
| * |
| * Modifications to the initial code base are copyright of their |
| * respective authors, or their employers as appropriate. |
| * |
| * This program is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Lesser General Public License |
| * as published by the Free Software Foundation; either version 2.1 of |
| * the License, or (at your option) any later version. |
| * |
| * This program is distributed in the hope that it will be useful, but |
| * WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * Lesser General Public License for more details. |
| * |
| * You should have received a copy of the GNU Lesser General Public |
| * License along with this program; if not, write to the Free Software |
| * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 |
| ******************************************************************************/ |
| package net.sf.taverna.t2.lang.ui.treetable; |
| |
| import java.util.EventObject; |
| |
| import javax.swing.CellEditor; |
| import javax.swing.event.CellEditorListener; |
| import javax.swing.event.ChangeEvent; |
| import javax.swing.event.EventListenerList; |
| |
| public class AbstractCellEditor implements CellEditor { |
| |
| protected EventListenerList listenerList = new EventListenerList(); |
| |
| public Object getCellEditorValue() { return null; } |
| public boolean isCellEditable(EventObject e) { return true; } |
| public boolean shouldSelectCell(EventObject anEvent) { return false; } |
| public boolean stopCellEditing() { return true; } |
| public void cancelCellEditing() {} |
| |
| public void addCellEditorListener(CellEditorListener l) { |
| listenerList.add(CellEditorListener.class, l); |
| } |
| |
| public void removeCellEditorListener(CellEditorListener l) { |
| listenerList.remove(CellEditorListener.class, l); |
| } |
| |
| /* |
| * Notify all listeners that have registered interest for |
| * notification on this event type. |
| * @see EventListenerList |
| */ |
| protected void fireEditingStopped() { |
| // Guaranteed to return a non-null array |
| Object[] listeners = listenerList.getListenerList(); |
| // Process the listeners last to first, notifying |
| // those that are interested in this event |
| for (int i = listeners.length-2; i>=0; i-=2) { |
| if (listeners[i]==CellEditorListener.class) { |
| ((CellEditorListener)listeners[i+1]).editingStopped(new ChangeEvent(this)); |
| } |
| } |
| } |
| |
| /* |
| * Notify all listeners that have registered interest for |
| * notification on this event type. |
| * @see EventListenerList |
| */ |
| protected void fireEditingCanceled() { |
| // Guaranteed to return a non-null array |
| Object[] listeners = listenerList.getListenerList(); |
| // Process the listeners last to first, notifying |
| // those that are interested in this event |
| for (int i = listeners.length-2; i>=0; i-=2) { |
| if (listeners[i]==CellEditorListener.class) { |
| ((CellEditorListener)listeners[i+1]).editingCanceled(new ChangeEvent(this)); |
| } |
| } |
| } |
| } |