/*!
* 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.util;
import java.awt.Component;
import java.awt.Dialog;
import java.awt.Frame;
import java.awt.HeadlessException;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import javax.swing.DefaultListModel;
import javax.swing.JDialog;
import javax.swing.JList;
import javax.swing.JScrollPane;
import javax.swing.ListSelectionModel;
import javax.swing.event.ListSelectionEvent;
import javax.swing.event.ListSelectionListener;
import org.pentaho.reporting.libraries.base.util.StringUtils;
import org.pentaho.reporting.libraries.designtime.swing.CommonDialog;
import org.pentaho.reporting.libraries.designtime.swing.FixDefaultListCellRenderer;
public class GroupSelectorDialog extends CommonDialog
{
private class MouseHandler extends MouseAdapter
{
public void mouseClicked(final MouseEvent e)
{
if (e.getClickCount() > 1 && e.getButton() == MouseEvent.BUTTON1)
{
final String selectedValue = (String) fieldList.getSelectedValue();
setSelectedGroup(selectedValue);
if (selectedValue != null)
{
setConfirmed(true);
GroupSelectorDialog.this.dispose();
}
}
}
}
private class SelectionUpdateHandler implements ListSelectionListener
{
private SelectionUpdateHandler()
{
}
public void valueChanged(final ListSelectionEvent e)
{
setSelectedGroup((String) fieldList.getSelectedValue());
}
}
private JList fieldList;
private String selectedGroup;
/**
* Creates a non-modal dialog without a title with the specified <code>Dialog</code> as its owner.
* <p/>
* This constructor sets the component's locale property to the value returned by
* <code>JComponent.getDefaultLocale</code>.
*
* @param owner the non-null <code>Dialog</code> from which the dialog is displayed
* @throws java.awt.HeadlessException if GraphicsEnvironment.isHeadless() returns true.
* @see java.awt.GraphicsEnvironment#isHeadless
* @see javax.swing.JComponent#getDefaultLocale
*/
public GroupSelectorDialog(final Dialog owner)
throws HeadlessException
{
super(owner);
init();
}
public GroupSelectorDialog(final Frame owner)
throws HeadlessException
{
super(owner);
init();
}
public GroupSelectorDialog()
throws HeadlessException
{
init();
}
protected void init()
{
setDefaultCloseOperation(JDialog.DISPOSE_ON_CLOSE);
fieldList = new JList();
fieldList.setCellRenderer(new FixDefaultListCellRenderer());
fieldList.setVisibleRowCount(5);
fieldList.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
fieldList.addMouseListener(new MouseHandler());
fieldList.addListSelectionListener(new SelectionUpdateHandler());
setTitle(UtilMessages.getInstance().getString("GroupSelectorDialog.Title"));
super.init();
}
protected String getDialogId()
{
return "ReportDesigner.Core.GroupSelector";
}
protected Component createContentPane()
{
return new JScrollPane(fieldList);
}
public void setGroups(final String[] queries)
{
final DefaultListModel listModel = new DefaultListModel();
for (int i = 0; i < queries.length; i++)
{
listModel.addElement(queries[i]);
}
fieldList.setModel(listModel);
}
public String getSelectedGroup()
{
return selectedGroup;
}
public void setSelectedGroup(final String selectedQuery)
{
final String oldQuery = this.selectedGroup;
this.selectedGroup = selectedQuery;
firePropertyChange("selectedGroup", oldQuery, selectedQuery);//NON-NLS
getConfirmAction().setEnabled(validateInputs(false));
}
public String performEdit(final String[] queries, final String selectedGroup)
{
setGroups(queries);
setSelectedGroup(selectedGroup);
if (super.performEdit())
{
return getSelectedGroup();
}
return selectedGroup;
}
protected boolean validateInputs(final boolean onConfirm)
{
final String selectedValue = (String) fieldList.getSelectedValue();
return (StringUtils.isEmpty(selectedValue) == false);
}
}