/*!
* 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.actions.report;
import java.awt.event.ActionEvent;
import javax.swing.Action;
import javax.swing.event.ChangeEvent;
import javax.swing.event.ChangeListener;
import org.pentaho.reporting.designer.core.actions.AbstractReportContextAction;
import org.pentaho.reporting.designer.core.actions.ActionMessages;
import org.pentaho.reporting.designer.core.editor.ReportDocumentContext;
import org.pentaho.reporting.designer.core.editor.ReportRenderContext;
import org.pentaho.reporting.designer.core.util.IconLoader;
public final class RedoAction extends AbstractReportContextAction implements ChangeListener
{
public RedoAction()
{
putValue(Action.NAME, ActionMessages.getString("RedoAction.Text"));
putValue(Action.SHORT_DESCRIPTION, ActionMessages.getString("RedoAction.Description"));
putValue(Action.MNEMONIC_KEY, ActionMessages.getOptionalMnemonic("RedoAction.Mnemonic"));
putValue(Action.SMALL_ICON, IconLoader.getInstance().getRedoIconSmall());
putValue(Action.ACCELERATOR_KEY, ActionMessages.getOptionalKeyStroke("RedoAction.Accelerator"));
}
/**
* Invoked when the target of the listener has changed its state.
*
* @param e a ChangeEvent object
*/
public void stateChanged(final ChangeEvent e)
{
final ReportDocumentContext activeContext = getActiveContext();
if (activeContext == null)
{
return;
}
setEnabled(activeContext.getUndo().isRedoPossible());
if (isEnabled())
{
putValue(Action.SHORT_DESCRIPTION, ActionMessages.getString("RedoAction.DescriptionPattern", activeContext.getUndo().getRedoName()));
}
else
{
putValue(Action.SHORT_DESCRIPTION, ActionMessages.getString("RedoAction.Description"));
}
}
protected void updateActiveContext(final ReportRenderContext oldContext, final ReportRenderContext newContext)
{
super.updateActiveContext(oldContext, newContext);
if (oldContext != null)
{
oldContext.getUndo().removeUndoListener(this);
}
if (newContext != null)
{
newContext.getUndo().addUndoListener(this);
}
stateChanged(null);
}
/**
* Invoked when an action occurs.
*/
public void actionPerformed(final ActionEvent e)
{
final ReportDocumentContext activeContext = getActiveContext();
if (activeContext == null)
{
return;
}
activeContext.getUndo().redo(activeContext);
activeContext.getReportDefinition().notifyNodeStructureChanged();
}
}