1 files changed, 159 insertions, 0 deletions
diff --git a/reportbuilder/java/com/sun/star/report/pentaho/layoutprocessor/OfficeDetailLayoutController.java b/reportbuilder/java/com/sun/star/report/pentaho/layoutprocessor/OfficeDetailLayoutController.java
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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.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
+ *
+ * @author Thomas Morgner
+ */
+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;
+
+    public OfficeDetailLayoutController()
+    {
+    }
+
+    /**
+     * 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 = 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.
+     */
+    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);
+    }
+
+    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 OfficeDetailLayoutController derived = (OfficeDetailLayoutController) clone();
+            derived.setProcessingState(ElementLayoutController.NOT_STARTED);
+            derived.setFlowController(flowController);
+            derived.waitForJoin = false;
+            return derived;
+        }
+        return super.join(flowController);
+    }
+}