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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 com.sun.star.report.pentaho.layoutprocessor;
import com.sun.star.report.pentaho.model.OfficeGroupSection;
import com.sun.star.report.pentaho.model.VariablesDeclarationSection;
import org.jfree.layouting.util.AttributeMap;
import org.jfree.report.DataSourceException;
import org.jfree.report.JFreeReportInfo;
import org.jfree.report.ReportDataFactoryException;
import org.jfree.report.ReportProcessingException;
import org.jfree.report.expressions.Expression;
import org.jfree.report.flow.FlowController;
import org.jfree.report.flow.ReportContext;
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.LayoutControllerFactory;
import org.jfree.report.flow.layoutprocessor.LayoutControllerUtil;
import org.jfree.report.flow.layoutprocessor.SectionLayoutController;
import org.jfree.report.structure.Element;
import org.jfree.report.structure.Node;
/**
* Creation-Date: 25.07.2007, 14:50:45
*
*/
public class OfficeGroupInstanceSectionLayoutController extends SectionLayoutController
{
public static final int STATE_PROCESS_VARIABLES = 2;
public static final int STATE_PROCESS_NORMAL_FLOW = 3;
private int state;
private boolean waitForJoin;
public OfficeGroupInstanceSectionLayoutController()
{
}
public void initialize(final Object node, final FlowController flowController, final LayoutController parent)
throws DataSourceException, ReportDataFactoryException, ReportProcessingException
{
super.initialize(node, flowController, parent);
state = STATE_PROCESS_VARIABLES;
}
protected LayoutController processContent(final ReportTarget target)
throws DataSourceException, ReportProcessingException, ReportDataFactoryException
{
if (state == OfficeGroupInstanceSectionLayoutController.STATE_PROCESS_VARIABLES)
{
// todo: Fill the variables section with something sensible ..
final VariablesDeclarationSection variables = new VariablesDeclarationSection();
final OfficeGroupInstanceSectionLayoutController controller =
(OfficeGroupInstanceSectionLayoutController) clone();
controller.state =
OfficeGroupLayoutController.STATE_PROCESS_NORMAL_FLOW;
controller.waitForJoin = true;
return processChild(controller, variables, getFlowController());
}
return super.processContent(target);
}
// isDisplayable is private in version 0.9.1, so until the upgrade we keep this copy of the method
// todo: Delete it unce the sun-cvs contains version 0.9.2.
protected LayoutController processChild(final SectionLayoutController derived,
final Node node,
final FlowController flowController)
throws DataSourceException, ReportProcessingException,
ReportDataFactoryException
{
final ReportContext reportContext = flowController.getReportContext();
final LayoutControllerFactory layoutControllerFactory = reportContext.getLayoutControllerFactory();
if (isDisplayable(node))
{
derived.setProcessingState(ElementLayoutController.WAITING_FOR_JOIN);
return layoutControllerFactory.create(flowController, node, derived);
}
else
{
derived.setProcessingState(ElementLayoutController.WAITING_FOR_JOIN);
final LayoutController childLc = layoutControllerFactory.create(flowController, node, derived);
return LayoutControllerUtil.skipInvisibleElement(childLc);
}
}
protected boolean isDisplayable(final Node node) throws DataSourceException
{
if (!(node instanceof OfficeGroupSection))
{
return _isDisplayable(node);
}
final OfficeGroupSection section = (OfficeGroupSection) node;
return !section.isRepeatSection() && _isDisplayable(node);
}
protected boolean _isDisplayable(final Node node)
throws DataSourceException
{
// temp method until the pending upgrade to 0.9.2. Later we just call super.isDisplayable(..) instead.
if (!node.isEnabled())
{
return false;
}
final Expression expression = node.getDisplayCondition();
if (expression == null)
{
return true;
}
final Object result = LayoutControllerUtil.evaluateExpression(getFlowController(), node, expression);
return Boolean.TRUE.equals(result);
}
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 incorperates all changes from the
* delegate.
*/
public LayoutController join(final FlowController flowController)
{
if (waitForJoin)
{
final OfficeGroupInstanceSectionLayoutController derived = (OfficeGroupInstanceSectionLayoutController) clone();
derived.setProcessingState(ElementLayoutController.OPENED);
derived.setFlowController(flowController);
derived.waitForJoin = false;
return derived;
}
return super.join(flowController);
}
protected AttributeMap computeAttributes(final FlowController fc, final Element element, final ReportTarget target)
throws DataSourceException
{
final AttributeMap map = new AttributeMap(super.computeAttributes(fc, element, target));
map.setAttribute(JFreeReportInfo.REPORT_NAMESPACE, "iteration-count", getIterationCount());
map.makeReadOnly();
return map;
}
}
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