/*!
* 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) 2002-2013 Pentaho Corporation.. All rights reserved.
*/
package org.pentaho.reporting.designer.core.editor.format;
import java.util.HashSet;
import java.util.Iterator;
import javax.swing.event.EventListenerList;
/**
* Todo: Document Me
*
* @author Thomas Morgner
*/
public class BorderSelectionModel
{
private EventListenerList eventListeners;
private HashSet<BorderSelection> selectedItems;
public BorderSelectionModel()
{
eventListeners = new EventListenerList();
selectedItems = new HashSet();
}
public void addBorderSelectionListener(final BorderSelectionListener listener)
{
eventListeners.add(BorderSelectionListener.class, listener);
}
public void removeBorderSelectionListener(final BorderSelectionListener listener)
{
eventListeners.remove(BorderSelectionListener.class, listener);
}
public BorderSelection[] getSelections()
{
return selectedItems.toArray(new BorderSelection[selectedItems.size()]);
}
public boolean isSelected(BorderSelection selection)
{
return selectedItems.contains(selection);
}
public void addSelection(BorderSelection selection)
{
if (selectedItems.add(selection))
{
fireSelectionAdded(selection);
}
}
public void removeSelection(BorderSelection selection)
{
if (selectedItems.remove(selection))
{
fireSelectionRemoved(selection);
}
}
public void clearSelection()
{
final Iterator<BorderSelection> iterator = selectedItems.iterator();
while (iterator.hasNext())
{
final BorderSelection selection = iterator.next();
iterator.remove();
fireSelectionRemoved(selection);
}
}
private void fireSelectionRemoved(final BorderSelection selection)
{
final BorderSelectionEvent event = new BorderSelectionEvent(this, selection);
final BorderSelectionListener[] listeners = eventListeners.getListeners(BorderSelectionListener.class);
for (int i = 0; i < listeners.length; i++)
{
final BorderSelectionListener listener = listeners[i];
listener.selectionRemoved(event);
}
}
private void fireSelectionAdded(final BorderSelection selection)
{
final BorderSelectionEvent event = new BorderSelectionEvent(this, selection);
final BorderSelectionListener[] listeners = eventListeners.getListeners(BorderSelectionListener.class);
for (int i = 0; i < listeners.length; i++)
{
final BorderSelectionListener listener = listeners[i];
listener.selectionAdded(event);
}
}
}