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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);
+ }
+}