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/*************************************************************************
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* Copyright 2000, 2010 Oracle and/or its affiliates.
*
* OpenOffice.org - a multi-platform office productivity suite
*
* This file is part of OpenOffice.org.
*
* OpenOffice.org is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License version 3
* only, as published by the Free Software Foundation.
*
* OpenOffice.org 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 version 3 for more details
* (a copy is included in the LICENSE file that accompanied this code).
*
* You should have received a copy of the GNU Lesser General Public License
* version 3 along with OpenOffice.org. If not, see
* <http://www.openoffice.org/license.html>
* for a copy of the LGPLv3 License.
*
************************************************************************/
package com.sun.star.report.pentaho.layoutprocessor;
import com.sun.star.report.pentaho.OfficeNamespaces;
import com.sun.star.report.OfficeToken;
import com.sun.star.report.pentaho.model.FormatCondition;
import com.sun.star.report.pentaho.model.FormattedTextElement;
import com.sun.star.report.pentaho.model.ReportElement;
import org.jfree.layouting.util.AttributeMap;
import org.jfree.report.DataSourceException;
import org.jfree.report.DataFlags;
import org.jfree.report.expressions.Expression;
import org.jfree.report.flow.FlowController;
import org.jfree.report.flow.ReportTarget;
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;
import org.jfree.report.structure.Section;
import org.pentaho.reporting.libraries.base.util.ObjectUtilities;
/**
* Before writing the table cell, we have to evaluate the childs of the cell. The cell itself can either be empty or it
* has a one ore more paragraphs inside. The paragraph contains a single report element, but may contain additional
* other content.
*
* @author Thomas Morgner
* @noinspection CloneableClassWithoutClone
* @since 05.03.2007
*/
public class TableCellLayoutController extends SectionLayoutController
{
public TableCellLayoutController()
{
}
protected AttributeMap computeAttributes(final FlowController fc,
final Element element,
final ReportTarget target)
throws DataSourceException
{
final AttributeMap attributeMap = new AttributeMap(super.computeAttributes(fc, element, target));
final String definedStyle = (String) attributeMap.getAttribute(OfficeNamespaces.TABLE_NS, OfficeToken.STYLE_NAME);
final String valueType = (String) attributeMap.getAttribute(OfficeNamespaces.OFFICE_NS, FormatValueUtility.VALUE_TYPE);
attributeMap.setAttribute(OfficeNamespaces.TABLE_NS, OfficeToken.STYLE_NAME, getDisplayStyleName((Section) element, definedStyle));
try
{
final DataFlags value = computeValue();
if (value != null)
{
FormatValueUtility.applyValueForCell(value.getValue(), attributeMap, valueType);
}
}
catch (Exception e)
{
// ignore ..
}
attributeMap.makeReadOnly();
return attributeMap;
}
private DataFlags computeValue() throws DataSourceException
{
// Search for the first FormattedTextElement
final Section cell = (Section) getElement();
final FormattedTextElement element = findFormattedTextElement(cell);
if (element == null)
{
return null;
}
final Expression dc = element.getDisplayCondition();
if (dc != null)
{
final Object o = LayoutControllerUtil.evaluateExpression(getFlowController(), element, dc);
if (Boolean.FALSE.equals(o))
{
return null;
}
}
return FormatValueUtility.computeDataFlag(element, getFlowController());
}
private FormattedTextElement findFormattedTextElement(final Section section)
{
final Node[] nodeArray = section.getNodeArray();
for (int i = 0; i < nodeArray.length; i++)
{
final Node node = nodeArray[i];
if (node instanceof FormattedTextElement)
{
return (FormattedTextElement) node;
}
else if (node instanceof Section)
{
final FormattedTextElement retval = findFormattedTextElement((Section) node);
if (retval != null)
{
return retval;
}
}
}
return null;
}
private String getDisplayStyleName(final Section section,
final String defaultStyle)
{
if (!section.isEnabled() || section.getNodeCount() == 0)
{
return defaultStyle;
}
final Node[] nodes = section.getNodeArray();
for (int i = 0; i < nodes.length; i++)
{
final Node child = nodes[i];
if (child instanceof ReportElement && child.isEnabled())
{
final ReportElement element = (ReportElement) child;
if (element.getFormatConditionCount() > 0)
{
final Expression displayCond = element.getDisplayCondition();
if (displayCond != null)
{
try
{
if (Boolean.FALSE.equals(LayoutControllerUtil.evaluateExpression(getFlowController(), element, displayCond)))
{
continue;
}
}
catch (DataSourceException e)
{
// ignore silently ..
}
}
final FormatCondition[] conditions = element.getFormatConditions();
for (int j = 0; j < conditions.length; j++)
{
final FormatCondition formCond = conditions[j];
if (formCond.isEnabled())
{
try
{
final Object o = LayoutControllerUtil.evaluateExpression(getFlowController(), element, formCond.getFormula());
if (Boolean.TRUE.equals(o))
{
return formCond.getStyleName();
}
}
catch (DataSourceException e)
{
// ignore silently ..
}
}
}
}
}
if (child instanceof Section)
{
final String childFormatCondition =
getDisplayStyleName((Section) child, defaultStyle);
if (!ObjectUtilities.equal(childFormatCondition, defaultStyle))
{
return childFormatCondition;
}
}
}
return defaultStyle;
}
}
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