/*!
* 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.engine.classic.core.layout.output;
import org.pentaho.reporting.engine.classic.core.Band;
import org.pentaho.reporting.engine.classic.core.DetailsFooter;
import org.pentaho.reporting.engine.classic.core.DetailsHeader;
import org.pentaho.reporting.engine.classic.core.GroupBody;
import org.pentaho.reporting.engine.classic.core.ItemBand;
import org.pentaho.reporting.engine.classic.core.NoDataBand;
import org.pentaho.reporting.engine.classic.core.RelationalGroup;
import org.pentaho.reporting.engine.classic.core.ReportProcessingException;
import org.pentaho.reporting.engine.classic.core.event.ReportEvent;
import org.pentaho.reporting.engine.classic.core.function.ExpressionRuntime;
import org.pentaho.reporting.engine.classic.core.layout.Renderer;
public class RelationalGroupOutputHandler implements GroupOutputHandler
{
public RelationalGroupOutputHandler()
{
}
public void groupStarted(final DefaultOutputFunction outputFunction,
final ReportEvent event) throws ReportProcessingException
{
final int gidx = event.getState().getCurrentGroupIndex();
final RelationalGroup group = (RelationalGroup) event.getReport().getGroup(gidx);
final Band b = group.getHeader();
final GroupBody groupBody = group.getBody();
outputFunction.updateFooterArea(event);
final Renderer renderer = outputFunction.getRenderer();
renderer.startGroup(group, event.getState().getPredictedStateCount());
renderer.startSection(Renderer.SectionType.NORMALFLOW);
outputFunction.print(outputFunction.getRuntime(), b);
outputFunction.addSubReportMarkers(renderer.endSection());
renderer.startGroupBody(groupBody, event.getState().getPredictedStateCount());
}
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);
final DetailsHeader detailsHeader = event.getReport().getDetailsHeader();
if (detailsHeader != null)
{
renderer.startSection(Renderer.SectionType.NORMALFLOW);
outputFunction.print(outputFunction.getRuntime(), detailsHeader);
outputFunction.addSubReportMarkers(renderer.endSection());
}
if (numberOfRows == 0 || outputFunction.getMetaData().isFeatureSupported(OutputProcessorFeature.DESIGNTIME))
{
// ups, we have no data. Lets signal that ...
final NoDataBand noDataBand = event.getReport().getNoDataBand();
if (noDataBand != null)
{
renderer.startSection(Renderer.SectionType.NORMALFLOW);
outputFunction.print(outputFunction.getRuntime(), noDataBand);
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);
final ItemBand itemBand = event.getReport().getItemBand();
if (itemBand != null)
{
renderer.startSection(Renderer.SectionType.NORMALFLOW);
outputFunction.print(outputFunction.getRuntime(), itemBand);
outputFunction.addSubReportMarkers(renderer.endSection());
}
}
public void itemsFinished(final DefaultOutputFunction outputFunction,
final ReportEvent event) throws ReportProcessingException
{
final Renderer renderer = outputFunction.getRenderer();
outputFunction.updateFooterArea(event);
final DetailsFooter detailsFooter = event.getReport().getDetailsFooter();
if (detailsFooter != null)
{
renderer.startSection(Renderer.SectionType.NORMALFLOW);
ExpressionRuntime runtime = outputFunction.getRuntime();
outputFunction.print(runtime, detailsFooter);
outputFunction.addSubReportMarkers(renderer.endSection());
}
}
public void groupBodyFinished(final DefaultOutputFunction outputFunction,
final ReportEvent event) throws ReportProcessingException
{
final Renderer renderer = outputFunction.getRenderer();
outputFunction.updateFooterArea(event);
// only happens for inner groups.
renderer.endGroupBody();
}
public void groupFinished(final DefaultOutputFunction outputFunction,
final ReportEvent event) throws ReportProcessingException
{
final int gidx = event.getState().getCurrentGroupIndex();
final RelationalGroup g = (RelationalGroup) event.getReport().getGroup(gidx);
final Band b = g.getFooter();
final Renderer renderer = outputFunction.getRenderer();
outputFunction.updateFooterArea(event);
renderer.startSection(Renderer.SectionType.NORMALFLOW);
outputFunction.print(outputFunction.getRuntime(), b);
outputFunction.addSubReportMarkers(renderer.endSection());
renderer.endGroup();
}
public void summaryRowStart(final DefaultOutputFunction outputFunction, final ReportEvent event)
throws ReportProcessingException
{
// not used.
}
public void summaryRowEnd(final DefaultOutputFunction outputFunction, final ReportEvent event)
throws ReportProcessingException
{
// not used.
}
public void summaryRow(final DefaultOutputFunction outputFunction, final ReportEvent event)
throws ReportProcessingException
{
// not used.
}
}