| /************************************************************** |
| * |
| * 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.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 |
| * |
| * @author Thomas Morgner |
| */ |
| 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; |
| } |
| } |