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Diffstat (limited to 'reportbuilder/java/org/libreoffice/report/pentaho/layoutprocessor/TableCellLayoutController.java')
| -rw-r--r-- | reportbuilder/java/org/libreoffice/report/pentaho/layoutprocessor/TableCellLayoutController.java | 220 |
1 files changed, 220 insertions, 0 deletions
diff --git a/reportbuilder/java/org/libreoffice/report/pentaho/layoutprocessor/TableCellLayoutController.java b/reportbuilder/java/org/libreoffice/report/pentaho/layoutprocessor/TableCellLayoutController.java new file mode 100644 index 000000000..b61c640bf --- /dev/null +++ b/reportbuilder/java/org/libreoffice/report/pentaho/layoutprocessor/TableCellLayoutController.java @@ -0,0 +1,220 @@ +/* + * 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.OfficeToken; +import org.libreoffice.report.pentaho.OfficeNamespaces; +import org.libreoffice.report.pentaho.model.FormatCondition; +import org.libreoffice.report.pentaho.model.FormattedTextElement; +import org.libreoffice.report.pentaho.model.ReportElement; + +import org.jfree.layouting.util.AttributeMap; +import org.jfree.report.DataFlags; +import org.jfree.report.DataSourceException; +import org.jfree.report.expressions.Expression; +import org.jfree.report.expressions.FormulaExpression; +import org.jfree.report.flow.FlowController; +import org.jfree.report.flow.ReportTarget; +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; +import org.jfree.report.structure.Section; +import org.pentaho.reporting.libraries.formula.Formula; +import org.pentaho.reporting.libraries.formula.lvalues.LValue; +import org.pentaho.reporting.libraries.formula.parser.ParseException; + +import org.pentaho.reporting.libraries.base.util.ObjectUtilities; + +/** + * Before writing the table cell, we have to evaluate the children of the cell. The cell itself can either be empty or it + * has one ore more paragraphs inside. The paragraph contains a single report element, but may contain additional + * other content. + * + * @since 05.03.2007 + */ +@SuppressWarnings({"CloneableClassWithoutClone"}) +public class TableCellLayoutController extends SectionLayoutController +{ + + @Override + protected AttributeMap computeAttributes(final FlowController fc, + final Element element, + final ReportTarget target) + throws DataSourceException + { + final AttributeMap attributeMap = new AttributeMap(super.computeAttributes(fc, element, target)); + final String definedStyle = (String) attributeMap.getAttribute(OfficeNamespaces.TABLE_NS, OfficeToken.STYLE_NAME); + attributeMap.setAttribute(OfficeNamespaces.TABLE_NS, OfficeToken.STYLE_NAME, getDisplayStyleName((Section) element, definedStyle)); + + try + { + final DataFlags value = computeValue(attributeMap); + final String valueType = (String) attributeMap.getAttribute(OfficeNamespaces.OFFICE_NS, FormatValueUtility.VALUE_TYPE); + if (value != null) + { + FormatValueUtility.applyValueForCell(value.getValue(), attributeMap, valueType); + } + // #i114108#: except on form elements, the only value-type that can + // occur without an accompanying value attribute is "string"; + // the content is then in the body. + else if (!"string".equals(valueType)) + { + attributeMap.setAttribute(OfficeNamespaces.OFFICE_NS, + FormatValueUtility.VALUE_TYPE, "string"); + } + } + catch (Exception e) + { + // ignore .. + } + attributeMap.makeReadOnly(); + return attributeMap; + } + + private DataFlags computeValue(final AttributeMap attributeMap) throws DataSourceException + { + // Search for the first FormattedTextElement + final Section cell = (Section) getElement(); + final FormattedTextElement element = findFormattedTextElement(cell); + if (element == null) + { + return null; + } + if (!FormatValueUtility.shouldPrint(this, element)) + { + attributeMap.setAttribute(OfficeNamespaces.OFFICE_NS, + FormatValueUtility.VALUE_TYPE, "void"); + return null; + } + return FormatValueUtility.computeDataFlag(element, getFlowController()); + } + + public boolean isValueChanged() + { + try + { + final Section cell = (Section) getElement(); + final FormattedTextElement element = findFormattedTextElement(cell); + if (element == null) + return false; + else + { + final FormulaExpression formulaExpression = element.getValueExpression(); + final Formula formula = formulaExpression.getCompiledFormula(); + final LValue lValue = formula.getRootReference(); + return FormatValueUtility.isReferenceChanged(this, lValue); + } + } + catch (final ParseException e) + { + return false; + } + } + + private FormattedTextElement findFormattedTextElement(final Section section) + { + final Node[] nodeArray = section.getNodeArray(); + for (int i = 0; i < nodeArray.length; i++) + { + final Node node = nodeArray[i]; + if (node instanceof FormattedTextElement) + { + return (FormattedTextElement) node; + } + else if (node instanceof Section) + { + final FormattedTextElement retval = findFormattedTextElement((Section) node); + if (retval != null) + { + return retval; + } + } + } + return null; + } + + private String getDisplayStyleName(final Section section, + final String defaultStyle) + { + if (!section.isEnabled() || section.getNodeCount() == 0) + { + return defaultStyle; + } + + final Node[] nodes = section.getNodeArray(); + for (int i = 0; i < nodes.length; i++) + { + final Node child = nodes[i]; + if (child instanceof ReportElement && child.isEnabled()) + { + final ReportElement element = (ReportElement) child; + if (element.getFormatConditionCount() > 0) + { + final Expression displayCond = element.getDisplayCondition(); + if (displayCond != null) + { + try + { + if (Boolean.FALSE.equals(LayoutControllerUtil.evaluateExpression(getFlowController(), element, displayCond))) + { + continue; + } + } + catch (DataSourceException e) + { + // ignore silently .. + } + } + + final FormatCondition[] conditions = element.getFormatConditions(); + for (int j = 0; j < conditions.length; j++) + { + final FormatCondition formCond = conditions[j]; + if (formCond.isEnabled()) + { + try + { + final Object o = LayoutControllerUtil.evaluateExpression(getFlowController(), element, formCond.getFormula()); + if (Boolean.TRUE.equals(o)) + { + return formCond.getStyleName(); + } + } + catch (DataSourceException e) + { + // ignore silently .. + } + } + } + } + } + + if (child instanceof Section) + { + final String childFormatCondition = + getDisplayStyleName((Section) child, defaultStyle); + if (!ObjectUtilities.equal(childFormatCondition, defaultStyle)) + { + return childFormatCondition; + } + } + } + return defaultStyle; + } +} |