| /************************************************************** |
| * |
| * 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 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| * |
| *************************************************************/ |
| |
| |
| package com.sun.star.report.pentaho.layoutprocessor; |
| |
| import com.sun.star.report.pentaho.model.OfficeGroup; |
| import com.sun.star.report.pentaho.model.OfficeGroupSection; |
| |
| 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.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; |
| import org.jfree.report.structure.Element; |
| |
| /** |
| * Todo: Document me! |
| * |
| * @author Thomas Morgner |
| * @since 15.03.2007 |
| */ |
| public class OfficeGroupLayoutController extends SectionLayoutController |
| implements OfficeRepeatingStructureLayoutController |
| { |
| |
| public static final int STATE_PROCESS_REPEATING_HEADER = 0; |
| public static final int STATE_PROCESS_REPEATING_FOOTER = 1; |
| public static final int STATE_PROCESS_NORMAL_FLOW = 3; |
| private boolean waitForJoin; |
| private int state; |
| private VariablesCollection variablesCollection; |
| private boolean repeatHeader; |
| private boolean repeatFooter; |
| |
| public OfficeGroupLayoutController() |
| { |
| } |
| |
| /** |
| * 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. |
| * |
| * @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. |
| */ |
| public void initialize(final Object node, |
| final FlowController flowController, |
| final LayoutController parent) |
| throws DataSourceException, ReportDataFactoryException, |
| ReportProcessingException |
| { |
| super.initialize(node, flowController, parent); |
| state = OfficeGroupLayoutController.STATE_PROCESS_REPEATING_HEADER; |
| variablesCollection = new VariablesCollection(computeVariablesPrefix()); |
| |
| |
| final OfficeGroup group = (OfficeGroup) getElement(); |
| final OfficeGroupSection header = group.getHeader(); |
| repeatHeader = (header != null && header.isRepeatSection()); |
| |
| final OfficeGroupSection footer = group.getFooter(); |
| repeatFooter = (footer != null && footer.isRepeatSection()); |
| } |
| |
| protected LayoutController processContent(final ReportTarget target) |
| throws DataSourceException, ReportProcessingException, |
| ReportDataFactoryException |
| { |
| if (state == OfficeGroupLayoutController.STATE_PROCESS_REPEATING_HEADER) |
| { |
| |
| final OfficeGroupLayoutController controller = |
| (OfficeGroupLayoutController) clone(); |
| controller.state = |
| OfficeGroupLayoutController.STATE_PROCESS_REPEATING_FOOTER; |
| |
| if (!repeatHeader) |
| { |
| return controller; |
| } |
| |
| final OfficeGroup group = (OfficeGroup) getElement(); |
| final OfficeGroupSection header = group.getHeader(); |
| controller.waitForJoin = true; |
| return processChild(controller, header, getFlowController()); |
| } |
| |
| if (state == OfficeGroupLayoutController.STATE_PROCESS_REPEATING_FOOTER) |
| { |
| |
| final OfficeGroupLayoutController controller = |
| (OfficeGroupLayoutController) clone(); |
| controller.state = OfficeGroupLayoutController.STATE_PROCESS_NORMAL_FLOW; |
| |
| if (!repeatFooter) |
| { |
| return controller; |
| } |
| |
| final OfficeGroup group = (OfficeGroup) getElement(); |
| final OfficeGroupSection footer = group.getFooter(); |
| controller.waitForJoin = true; |
| return processChild(controller, footer, getFlowController()); |
| } |
| |
| return super.processContent(target); |
| } |
| |
| /** |
| * 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 OfficeGroupLayoutController derived = (OfficeGroupLayoutController) clone(); |
| derived.setProcessingState(ElementLayoutController.OPENED); |
| derived.setFlowController(flowController); |
| derived.waitForJoin = false; |
| return derived; |
| } |
| return super.join(flowController); |
| } |
| |
| public boolean isNormalFlowProcessing() |
| { |
| return state == OfficeGroupLayoutController.STATE_PROCESS_NORMAL_FLOW; |
| } |
| |
| private String computeVariablesPrefix() |
| { |
| int count = 0; |
| LayoutController lc = this; |
| while (lc != null) |
| { |
| if (lc instanceof OfficeGroupLayoutController) |
| { |
| count++; |
| } |
| lc = lc.getParent(); |
| } |
| return "auto_group_" + count + "_"; |
| } |
| |
| public VariablesCollection getVariablesCollection() |
| { |
| return variablesCollection; |
| } |
| |
| protected AttributeMap computeAttributes(final FlowController fc, final Element element, final ReportTarget target) |
| throws DataSourceException |
| { |
| final AttributeMap map = new AttributeMap(super.computeAttributes(fc, element, target)); |
| final String value = String.valueOf(repeatHeader || repeatFooter); |
| map.setAttribute(JFreeReportInfo.REPORT_NAMESPACE, "repeating-header-or-footer", value); |
| map.makeReadOnly(); |
| return map; |
| } |
| } |