/*
* 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) 2009 Pentaho Corporation.. All rights reserved.
*/
package org.pentaho.reporting.engine.classic.core.layout.output;
import org.pentaho.reporting.engine.classic.core.Band;
import org.pentaho.reporting.engine.classic.core.Group;
import org.pentaho.reporting.engine.classic.core.ReportProcessingException;
import org.pentaho.reporting.engine.classic.core.event.ReportEvent;
import org.pentaho.reporting.engine.classic.core.layout.Renderer;
/**
* Todo: Document Me
*
* @author Thomas Morgner
*/
public class RelationalGroupOutputHandler implements GroupOutputHandler
{
public void groupStarted(final DefaultOutputFunction outputFunction,
final ReportEvent event) throws ReportProcessingException
{
outputFunction.updateFooterArea(event);
final Renderer renderer = outputFunction.getRenderer();
final int gidx = event.getState().getCurrentGroupIndex();
final Group g = event.getReport().getGroup(gidx);
final Band b = g.getHeader();
renderer.startGroup(g);
renderer.startSection(Renderer.TYPE_NORMALFLOW);
outputFunction.print(outputFunction.getRuntime(), b);
outputFunction.addSubReportMarkers(renderer.endSection());
renderer.startGroupBody(g.getBody());
}
public void itemsStarted(final DefaultOutputFunction outputFunction,
final ReportEvent event) throws ReportProcessingException
{
// activating this state after the page has ended is invalid.
final int numberOfRows = event.getState().getNumberOfRows();
final Renderer renderer = outputFunction.getRenderer();
outputFunction.updateFooterArea(event);
renderer.startSection(Renderer.TYPE_NORMALFLOW);
outputFunction.print(outputFunction.getRuntime(), event.getReport().getDetailsHeader());
outputFunction.addSubReportMarkers(renderer.endSection());
if (numberOfRows == 0)
{
// ups, we have no data. Lets signal that ...
renderer.startSection(Renderer.TYPE_NORMALFLOW);
outputFunction.print(outputFunction.getRuntime(), event.getReport().getNoDataBand());
outputFunction.addSubReportMarkers(renderer.endSection());
// there will be no item-band printed.
}
}
public void itemsAdvanced(final DefaultOutputFunction outputFunction,
final ReportEvent event) throws ReportProcessingException
{
final Renderer renderer = outputFunction.getRenderer();
outputFunction.updateFooterArea(event);
renderer.startSection(Renderer.TYPE_NORMALFLOW);
outputFunction.print(outputFunction.getRuntime(), event.getReport().getItemBand());
outputFunction.addSubReportMarkers(renderer.endSection());
}
public void itemsFinished(final DefaultOutputFunction outputFunction,
final ReportEvent event) throws ReportProcessingException
{
final Renderer renderer = outputFunction.getRenderer();
outputFunction.updateFooterArea(event);
renderer.startSection(Renderer.TYPE_NORMALFLOW);
outputFunction.print(outputFunction.getRuntime(), event.getReport().getDetailsFooter());
outputFunction.addSubReportMarkers(renderer.endSection());
}
public void groupFinished(final DefaultOutputFunction outputFunction,
final ReportEvent event) throws ReportProcessingException
{
final Renderer renderer = outputFunction.getRenderer();
outputFunction.updateFooterArea(event);
final int gidx = event.getState().getCurrentGroupIndex();
final Group g = event.getReport().getGroup(gidx);
final Band b = g.getFooter();
renderer.endGroupBody();
renderer.startSection(Renderer.TYPE_NORMALFLOW);
outputFunction.print(outputFunction.getRuntime(), b);
outputFunction.addSubReportMarkers(renderer.endSection());
renderer.endGroup();
}
}