/*
* This program is free software; you can redistribute it and/or modify it under the
* terms of the GNU Lesser General Public License, version 2.1 as published by the Free Software
* Foundation.
*
* You should have received a copy of the GNU Lesser General Public License along with this
* program; if not, you can obtain a copy at http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html
* or from the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
* 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.
*
* Copyright (c) 2006 - 2013 Pentaho Corporation.. All rights reserved.
*/
package org.pentaho.reporting.engine.classic.core.designtime.datafactory.editor.model;
import javax.swing.ComboBoxModel;
import javax.swing.event.EventListenerList;
import javax.swing.event.ListDataEvent;
import javax.swing.event.ListDataListener;
public class QueryDialogComboBoxModel<T> implements ComboBoxModel
{
private class UpdateHandler implements QueryDialogModelListener<T>
{
private UpdateHandler()
{
}
public void globalScriptChanged(final QueryDialogModelEvent<T> event)
{
// ignored
}
public void queryAdded(final QueryDialogModelEvent<T> event)
{
fireIntervalAddedEvent(new ListDataEvent
(this, ListDataEvent.INTERVAL_ADDED, event.getNewIndex(), event.getNewIndex()));
}
public void queryRemoved(final QueryDialogModelEvent<T> event)
{
fireIntervalRemovedEvent(new ListDataEvent
(this, ListDataEvent.INTERVAL_REMOVED, event.getOldIndex(), event.getOldIndex()));
}
public void queryUpdated(final QueryDialogModelEvent<T> event)
{
fireContentsChangedEvent(new ListDataEvent
(this, ListDataEvent.CONTENTS_CHANGED, event.getNewIndex(), event.getNewIndex()));
}
public void queryDataChanged(final QueryDialogModelEvent<T> event)
{
fireContentsChangedEvent(new ListDataEvent(this, ListDataEvent.CONTENTS_CHANGED, 0, getSize()));
}
public void selectionChanged(final QueryDialogModelEvent<T> event)
{
fireContentsChangedEvent(new ListDataEvent(this, ListDataEvent.CONTENTS_CHANGED, -1, -1));
}
}
private EventListenerList listeners;
private QueryDialogModel<T> dialogModel;
public QueryDialogComboBoxModel(QueryDialogModel<T> dialogModel)
{
this.listeners = new EventListenerList();
this.dialogModel = dialogModel;
this.dialogModel.addQueryDialogModelListener(new UpdateHandler());
}
public Object getSelectedItem()
{
return dialogModel.getSelectedQuery();
}
@SuppressWarnings("unchecked")
public void setSelectedItem(final Object anItem)
{
dialogModel.setSelectedQuery((Query<T>) anItem);
}
public int getSize()
{
return dialogModel.getQueryCount();
}
public Query<T> getElementAt(final int index)
{
return dialogModel.getQuery(index);
}
public void addListDataListener(final ListDataListener l)
{
listeners.add(ListDataListener.class, l);
}
public void removeListDataListener(final ListDataListener l)
{
listeners.remove(ListDataListener.class, l);
}
protected void fireContentsChangedEvent(ListDataEvent event)
{
ListDataListener[] listeners1 = listeners.getListeners(ListDataListener.class);
for (int i = listeners1.length - 1; i >= 0; i -= 1)
{
ListDataListener l = listeners1[i];
l.contentsChanged(event);
}
}
protected void fireIntervalRemovedEvent(ListDataEvent event)
{
ListDataListener[] listeners1 = listeners.getListeners(ListDataListener.class);
for (int i = listeners1.length - 1; i >= 0; i -= 1)
{
ListDataListener l = listeners1[i];
l.intervalRemoved(event);
}
}
protected void fireIntervalAddedEvent(ListDataEvent event)
{
ListDataListener[] listeners1 = listeners.getListeners(ListDataListener.class);
for (int i = listeners1.length - 1; i >= 0; i -= 1)
{
ListDataListener l = listeners1[i];
l.intervalAdded(event);
}
}
}