reportbuilder/java/org/libreoffice/report/pentaho/layoutprocessor/FixedTextLayoutController.java


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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.FixedTextElement;

import org.jfree.report.DataSourceException;
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.ReportContext;
import org.jfree.report.flow.ReportTarget;
import org.jfree.report.flow.layoutprocessor.LayoutController;
import org.jfree.report.flow.layoutprocessor.LayoutControllerFactory;
import org.jfree.report.structure.Section;

/**
 * Processes a fixed-text element of the OpenOffice reporting specification.
 * The element itself contains a single paragraph which contains the content.
 * After checking, whether this element should be printed, this layout
 * controller simply delegates the dirty work to a suitable handler.
 *
 * @since 05.03.2007
 */
@SuppressWarnings({"CloneableClassWithoutClone"})
public class FixedTextLayoutController
        extends AbstractReportElementLayoutController
{

    @Override
    public boolean isValueChanged()
    {
        final FlowController controller = getFlowController();
        final GlobalMasterRow masterRow = controller.getMasterRow();
        final ReportDataRow reportDataRow = masterRow.getReportDataRow();
        return reportDataRow.getCursor() == 0;
    }

    @Override
    protected LayoutController delegateContentGeneration(final ReportTarget target)
            throws ReportProcessingException, ReportDataFactoryException,
            DataSourceException
    {
        final FixedTextElement fte = (FixedTextElement) getNode();
        final Section content = fte.getContent();

        final FlowController flowController = getFlowController();
        final ReportContext reportContext = flowController.getReportContext();
        final LayoutControllerFactory layoutControllerFactory =
                reportContext.getLayoutControllerFactory();

        final FixedTextLayoutController flc = (FixedTextLayoutController) clone();
        flc.setState(AbstractReportElementLayoutController.FINISHED);
        return layoutControllerFactory.create(flowController, content, flc);
    }
}