/*!
* 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.drilldown;
import java.awt.Component;
import java.awt.event.ItemEvent;
import java.awt.event.ItemListener;
import java.util.Arrays;
import javax.swing.DefaultComboBoxModel;
import javax.swing.DefaultListCellRenderer;
import javax.swing.JComboBox;
import javax.swing.JComponent;
import javax.swing.JList;
import javax.swing.event.ChangeEvent;
import javax.swing.event.ChangeListener;
import javax.swing.event.EventListenerList;
/**
* Todo: Document me!
* <p/>
* Date: 05.08.2010
* Time: 13:50:29
*
* @author Thomas Morgner.
*/
public class ComboBoxSelector extends JComboBox implements DrillDownSelector
{
private static class DrillDownProfileRenderer extends DefaultListCellRenderer
{
private DrillDownProfileRenderer()
{
}
public Component getListCellRendererComponent(final JList list,
final Object value,
final int index,
final boolean isSelected,
final boolean cellHasFocus)
{
super.getListCellRendererComponent(list, value, index, isSelected, cellHasFocus);
if (value == null)
{
setText("Manual Linking");
}
else
{
final DrillDownUiProfile profile = (DrillDownUiProfile) value;
setText(profile.getDisplayName());
}
return this;
}
}
private class DrillDownItemListener implements ItemListener
{
private DrillDownItemListener()
{
}
/**
* Invoked when an item has been selected or deselected by the user.
* The code written for this method performs the operations
* that need to occur when an item is selected (or deselected).
*/
public void itemStateChanged(final ItemEvent e)
{
fireChangeEvent();
}
}
private EventListenerList eventListeners;
public ComboBoxSelector(final boolean allowManualMode)
{
eventListeners = new EventListenerList();
setRenderer(new DrillDownProfileRenderer());
setModel(createModel(allowManualMode));
addItemListener(new DrillDownItemListener());
}
public DrillDownUiProfile getSelectedProfile()
{
return (DrillDownUiProfile) getSelectedItem();
}
public void setSelectedProfile(final DrillDownUiProfile profile)
{
setSelectedItem(profile);
}
public JComponent getComponent()
{
return this;
}
private DefaultComboBoxModel createModel(final boolean allowManualMode)
{
final DrillDownUiProfileRegistry metaData = DrillDownUiProfileRegistry.getInstance();
final DrillDownUiProfile[] drilldownProfiles = metaData.getProfiles();
Arrays.sort(drilldownProfiles, new DrillDownUiProfileComparator());
final DefaultComboBoxModel comboBoxModel = new DefaultComboBoxModel(drilldownProfiles);
if (allowManualMode)
{
comboBoxModel.addElement(null);
}
return comboBoxModel;
}
public void addChangeListener(final ChangeListener changeListener)
{
if (changeListener == null)
{
throw new NullPointerException();
}
eventListeners.add(ChangeListener.class, changeListener);
}
public void removeChangeListener(final ChangeListener changeListener)
{
if (changeListener == null)
{
throw new NullPointerException();
}
eventListeners.remove(ChangeListener.class, changeListener);
}
private void fireChangeEvent()
{
final ChangeListener[] changeListeners = eventListeners.getListeners(ChangeListener.class);
final ChangeEvent event = new ChangeEvent(this);
for (int i = 0; i < changeListeners.length; i++)
{
final ChangeListener listener = changeListeners[i];
listener.stateChanged(event);
}
}
}