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/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership. The ASF licenses this file to you under the Apache
* License, Version 2.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.apache.org/licenses/LICENSE-2.0 .
*/
package org.libreoffice.report.pentaho.layoutprocessor;
import org.libreoffice.report.pentaho.model.VariablesDeclarationSection;
import org.jfree.report.DataSourceException;
import org.jfree.report.ReportData;
import org.jfree.report.ReportDataFactoryException;
import org.jfree.report.ReportProcessingException;
import org.jfree.report.data.GlobalMasterRow;
import org.jfree.report.data.ReportDataRow;
import org.jfree.report.flow.FlowController;
import org.jfree.report.flow.ReportTarget;
import org.jfree.report.flow.layoutprocessor.ElementLayoutController;
import org.jfree.report.flow.layoutprocessor.LayoutController;
import org.jfree.report.flow.layoutprocessor.SectionLayoutController;
/**
* Creation-Date: 11.04.2007, 11:04:02
*
*/
public class OfficeDetailLayoutController extends SectionLayoutController
{
public static final int STATE_PROCESS_VARIABLES = 2;
public static final int STATE_PROCESS_NORMAL_FLOW = 3;
private boolean waitForJoin;
private int state;
/**
* Initializes the layout controller. This method is called exactly once. It
* is the creators responsibility to call this method.
*
* <p>Calling initialize after the first advance must result in a
* IllegalStateException.</p>
*
* @param node the currently processed object or layout node.
* @param flowController the current flow controller.
* @param parent the parent layout controller that was responsible for
* instantiating this controller.
* @throws org.jfree.report.DataSourceException
* if there was a problem reading data from the datasource.
* @throws org.jfree.report.ReportProcessingException
* if there was a general problem during the report processing.
* @throws org.jfree.report.ReportDataFactoryException
* if a query failed.
*/
@Override
public void initialize(final Object node,
final FlowController flowController,
final LayoutController parent)
throws DataSourceException, ReportDataFactoryException,
ReportProcessingException
{
super.initialize(node, flowController, parent);
state = OfficeDetailLayoutController.STATE_PROCESS_VARIABLES;
}
/**
* This method is called for each newly instantiated layout controller. The returned layout controller instance should
* have a processing state of either 'OPEN' or 'FINISHING' depending on whether there is any content or any child
* nodes to process.
*
* @param target the report target that receives generated events.
* @return the new layout controller instance representing the new state.
* @throws org.jfree.report.DataSourceException
* if there was a problem reading data from the datasource.
* @throws org.jfree.report.ReportProcessingException
* if there was a general problem during the report processing.
* @throws org.jfree.report.ReportDataFactoryException
* if a query failed.
*/
@Override
protected LayoutController startElement(final ReportTarget target)
throws DataSourceException, ReportProcessingException, ReportDataFactoryException
{
final FlowController fc = getFlowController();
final GlobalMasterRow masterRow = fc.getMasterRow();
final ReportDataRow reportDataRow = masterRow.getReportDataRow();
final ReportData reportData = reportDataRow.getReportData();
if (!reportData.isReadable())
{
reportData.isReadable();
// If this report has no data, then do not print the detail section. The detail section
// is the only section that behaves this way, and for now this is only done in the OO-implementation
final SectionLayoutController derived = (SectionLayoutController) clone();
derived.setProcessingState(ElementLayoutController.FINISHED);
derived.setFlowController(fc);
return derived;
}
if (state == OfficeDetailLayoutController.STATE_PROCESS_VARIABLES)
{
final VariablesDeclarationSection variables = new VariablesDeclarationSection();
final OfficeDetailLayoutController controller = (OfficeDetailLayoutController) clone();
controller.state = OfficeDetailLayoutController.STATE_PROCESS_NORMAL_FLOW;
controller.waitForJoin = true;
return processChild(controller, variables, fc);
}
return super.startElement(target);
}
@Override
protected void resetSectionForRepeat()
{
super.resetSectionForRepeat();
state = STATE_PROCESS_VARIABLES;
}
/**
* Joins with a delegated process flow. This is generally called from a child
* flow and should *not* (I mean it!) be called from outside. If you do,
* you'll suffer.
*
* @param flowController the flow controller of the parent.
* @return the joined layout controller that incorporates all changes from the
* delegate.
*/
@Override
public LayoutController join(final FlowController flowController)
{
if (waitForJoin)
{
final OfficeDetailLayoutController derived = (OfficeDetailLayoutController) clone();
derived.setProcessingState(ElementLayoutController.NOT_STARTED);
derived.setFlowController(flowController);
derived.waitForJoin = false;
return derived;
}
return super.join(flowController);
}
}
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