/*!
* 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.engine.classic.core.AbstractReportDefinition;
import org.pentaho.reporting.engine.classic.core.MasterReport;
import org.pentaho.reporting.engine.classic.core.parameters.ModifiableReportParameterDefinition;
import org.pentaho.reporting.engine.classic.core.parameters.ParameterDefinitionEntry;
import org.pentaho.reporting.engine.classic.core.parameters.ReportParameterDefinition;
/**
* Handles insert, remove and replacement of elements. Insert: old is null, remove: new is null.
*
* @author Thomas Morgner
*/
public class ParameterEditUndoEntry implements UndoEntry
{
private int position;
private ParameterDefinitionEntry oldElement;
private ParameterDefinitionEntry newElement;
public ParameterEditUndoEntry(final int position,
final ParameterDefinitionEntry oldElement,
final ParameterDefinitionEntry newElement)
{
this.position = position;
this.oldElement = oldElement;
this.newElement = newElement;
}
public void undo(final ReportDocumentContext renderContext)
{
final AbstractReportDefinition abstractReportDefinition = renderContext.getReportDefinition();
if (abstractReportDefinition instanceof MasterReport == false)
{
return;
}
final MasterReport report = (MasterReport) abstractReportDefinition;
final ReportParameterDefinition definition = report.getParameterDefinition();
if (definition instanceof ModifiableReportParameterDefinition == false)
{
return;
}
final ModifiableReportParameterDefinition mdef = (ModifiableReportParameterDefinition) definition;
if (newElement != null)
{
mdef.removeParameterDefinition(position);
clearParameterValues(report);
report.notifyNodeChildRemoved(newElement);
}
if (oldElement != null)
{
mdef.addParameterDefinition(position, oldElement);
clearParameterValues(report);
report.notifyNodeChildAdded(oldElement);
}
}
public void redo(final ReportDocumentContext renderContext)
{
final AbstractReportDefinition abstractReportDefinition = renderContext.getReportDefinition();
if (abstractReportDefinition instanceof MasterReport == false)
{
return;
}
final MasterReport report = (MasterReport) abstractReportDefinition;
final ReportParameterDefinition definition = report.getParameterDefinition();
if (definition instanceof ModifiableReportParameterDefinition == false)
{
return;
}
final ModifiableReportParameterDefinition mdef = (ModifiableReportParameterDefinition) definition;
if (oldElement != null)
{
mdef.removeParameterDefinition(position);
clearParameterValues(report);
report.notifyNodeChildRemoved(oldElement);
}
if (newElement != null)
{
mdef.addParameterDefinition(position, newElement);
clearParameterValues(report);
report.notifyNodeChildAdded(newElement);
}
}
private void clearParameterValues(final MasterReport report)
{
final String[] columnNames = report.getParameterValues().getColumnNames();
for (int i = 0; i < columnNames.length; i++)
{
final String columnName = columnNames[i];
report.getParameterValues().put(columnName, null);
}
}
public UndoEntry merge(final UndoEntry newEntry)
{
return null;
}
}