/*!
* 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.undo;
import org.pentaho.reporting.designer.core.editor.ReportDocumentContext;
import org.pentaho.reporting.designer.core.model.ModelUtility;
import org.pentaho.reporting.engine.classic.core.AbstractRootLevelBand;
import org.pentaho.reporting.engine.classic.core.SubReport;
import org.pentaho.reporting.engine.classic.core.util.InstanceID;
/**
* Handles insert, remove and replacement of elements. Insert: old is null, remove: new is null.
*
* @author Thomas Morgner
*/
public class BandedSubreportEditUndoEntry implements UndoEntry {
private InstanceID target;
private int position;
private SubReport oldElement;
private SubReport newElement;
public BandedSubreportEditUndoEntry( final InstanceID target,
final int position,
final SubReport oldElement,
final SubReport newElement ) {
this.target = target;
this.position = position;
this.oldElement = oldElement;
this.newElement = newElement;
}
public void undo( final ReportDocumentContext renderContext ) {
final AbstractRootLevelBand elementById = (AbstractRootLevelBand)
ModelUtility.findElementById( renderContext.getReportDefinition(), target );
if ( newElement != null ) {
elementById.removeSubreport( newElement );
}
if ( oldElement != null ) {
elementById.addSubReport( position, oldElement );
}
}
public void redo( final ReportDocumentContext renderContext ) {
final AbstractRootLevelBand elementById = (AbstractRootLevelBand)
ModelUtility.findElementById( renderContext.getReportDefinition(), target );
if ( oldElement != null ) {
elementById.removeSubreport( oldElement );
}
if ( newElement != null ) {
elementById.addSubReport( position, newElement );
}
}
public UndoEntry merge( final UndoEntry newEntry ) {
return null;
}
}