/*
* 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) 2001 - 2013 Object Refinery Ltd, Pentaho Corporation and Contributors.. All rights reserved.
*/
package org.pentaho.reporting.engine.classic.demo.ancient.demo.conditionalgroup;
import org.pentaho.reporting.engine.classic.core.Element;
import org.pentaho.reporting.engine.classic.core.RelationalGroup;
import org.pentaho.reporting.engine.classic.core.event.ReportEvent;
import org.pentaho.reporting.engine.classic.core.function.AbstractFunction;
import org.pentaho.reporting.engine.classic.core.function.FunctionUtilities;
public class TriggerTypeFunction extends AbstractFunction
{
/**
* Creates an unnamed function. Make sure the name of the function is set using {@link #setName} before the function
* is added to the report's function collection.
*/
public TriggerTypeFunction()
{
}
/**
* Receives notification that a group has started.
*
* @param event the event.
*/
public void groupStarted(final ReportEvent event)
{
// do nothing if this is the wrong group ...
if (FunctionUtilities.isDefinedGroup("type-group", event) == false)
{
return;
}
final String type = (String) event.getDataRow().get("type");
final RelationalGroup g = (RelationalGroup) FunctionUtilities.getCurrentGroup(event);
final Element headerIncomeBand = g.getHeader().getElement("income-band");
final Element headerExpenseBand = g.getHeader().getElement("expense-band");
final Element footerIncomeBand = g.getFooter().getElement("income-band");
final Element footerExpenseBand = g.getFooter().getElement("expense-band");
// and now apply the visibility ...
if ("Income".equals(type))
{
headerExpenseBand.setVisible(false);
footerExpenseBand.setVisible(false);
headerIncomeBand.setVisible(true);
footerIncomeBand.setVisible(true);
}
else
{
headerExpenseBand.setVisible(true);
footerExpenseBand.setVisible(true);
headerIncomeBand.setVisible(false);
footerIncomeBand.setVisible(false);
}
}
/**
* Return the current expression value. <P> The value depends (obviously) on the expression implementation.
*
* @return the value of the function.
*/
public Object getValue()
{
return null;
}
}