diff options
Diffstat (limited to 'reportbuilder/java/org/libreoffice/report/pentaho/parser/rpt/ImageReadHandler.java')
-rw-r--r-- | reportbuilder/java/org/libreoffice/report/pentaho/parser/rpt/ImageReadHandler.java | 134 |
1 files changed, 134 insertions, 0 deletions
diff --git a/reportbuilder/java/org/libreoffice/report/pentaho/parser/rpt/ImageReadHandler.java b/reportbuilder/java/org/libreoffice/report/pentaho/parser/rpt/ImageReadHandler.java new file mode 100644 index 000000000..86dd423d5 --- /dev/null +++ b/reportbuilder/java/org/libreoffice/report/pentaho/parser/rpt/ImageReadHandler.java @@ -0,0 +1,134 @@ +/* + * 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.parser.rpt; + +import org.libreoffice.report.OfficeToken; +import org.libreoffice.report.pentaho.OfficeNamespaces; +import org.libreoffice.report.pentaho.model.ImageElement; +import org.libreoffice.report.pentaho.parser.ElementReadHandler; +import org.libreoffice.report.pentaho.parser.xlink.XLinkReadHandler; + +import org.jfree.report.expressions.FormulaExpression; +import org.jfree.report.structure.Element; + +import org.pentaho.reporting.libraries.xmlns.parser.IgnoreAnyChildReadHandler; +import org.pentaho.reporting.libraries.xmlns.parser.XmlReadHandler; + +import org.xml.sax.Attributes; +import org.xml.sax.SAXException; + +/** + * Deals with Image-content. There are two ways to specify the image; + * as formula or as static image data. + * + */ +public class ImageReadHandler extends ElementReadHandler +{ + + private final ImageElement contentElement; + private XLinkReadHandler xLinkReadHandler; + + public ImageReadHandler() + { + contentElement = new ImageElement(); + } + + /** + * Starts parsing. + * + * @param attrs the attributes. + * @throws org.xml.sax.SAXException if there is a parsing error. + */ + @Override + protected void startParsing(final Attributes attrs) throws SAXException + { + super.startParsing(attrs); + final String formula = attrs.getValue(OfficeNamespaces.OOREPORT_NS, "formula"); + if (formula != null && formula.length() != 0) + { + // now, the evaluated content ends up in the 'content' attribute of the + // element. + final FormulaExpression valueExpression = new FormulaExpression(); + valueExpression.setFormula(formula); + contentElement.setFormula(valueExpression); + } + + contentElement.setNamespace(OfficeNamespaces.FORM_NS); + contentElement.setType(OfficeToken.IMAGE); + } + + /** + * Returns the handler for a child element. + * + * @param tagName the tag name. + * @param atts the attributes. + * @return the handler or null, if the tagname is invalid. + * @throws org.xml.sax.SAXException if there is a parsing error. + */ + @Override + protected XmlReadHandler getHandlerForChild(final String uri, + final String tagName, + final Attributes atts) + throws SAXException + { + if (OfficeNamespaces.DRAWING_NS.equals(uri) && OfficeToken.IMAGE_DATA.equals(tagName)) + { + xLinkReadHandler = new XLinkReadHandler(); + return xLinkReadHandler; + } + + if (OfficeNamespaces.OOREPORT_NS.equals(uri)) + { + // expect a report control. The control will modify the current + // element (as we do not separate the elements that strictly...) + if ("report-control".equals(tagName)) + { + return new IgnoreAnyChildReadHandler(); + } + if ("report-element".equals(tagName)) + { + return new ReportElementReadHandler(contentElement); + } + } + return null; + } + + /** + * Done parsing. + * + * @throws org.xml.sax.SAXException if there is a parsing error. + */ + @Override + protected void doneParsing() throws SAXException + { + // if we have static content (as well as or only), that one goes into the + // alternate-content attribute right now. It is part of the output target + // and style rules to deal with them properly. + if (xLinkReadHandler != null) + { + contentElement.setAttribute(OfficeNamespaces.OOREPORT_NS, + "alternate-content", xLinkReadHandler.getUri()); + } + } + + @Override + public Element getElement() + { + return contentElement; + } +} |