173 lines
5.8 KiB
Java
173 lines
5.8 KiB
Java
/* ====================================================================
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Licensed to the Apache Software Foundation (ASF) under one or more
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contributor license agreements. See the NOTICE file distributed with
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this work for additional information regarding copyright ownership.
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The ASF licenses this file to You under the Apache License, Version 2.0
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(the "License"); you may not use this file except in compliance with
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the License. You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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==================================================================== */
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package org.apache.poi.xslf.usermodel;
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import static org.apache.poi.POIXMLTypeLoader.DEFAULT_XML_OPTIONS;
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import java.io.IOException;
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import java.io.OutputStream;
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import java.util.HashMap;
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import java.util.Map;
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import javax.xml.namespace.QName;
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import org.apache.poi.POIXMLDocumentPart;
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import org.apache.poi.openxml4j.opc.PackagePart;
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import org.apache.poi.util.Beta;
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import org.apache.poi.util.Internal;
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import org.apache.xmlbeans.XmlException;
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import org.apache.xmlbeans.XmlObject;
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import org.apache.xmlbeans.XmlOptions;
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import org.openxmlformats.schemas.drawingml.x2006.main.CTBaseStyles;
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import org.openxmlformats.schemas.drawingml.x2006.main.CTColor;
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import org.openxmlformats.schemas.drawingml.x2006.main.CTColorMapping;
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import org.openxmlformats.schemas.drawingml.x2006.main.CTColorScheme;
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import org.openxmlformats.schemas.drawingml.x2006.main.CTOfficeStyleSheet;
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import org.openxmlformats.schemas.drawingml.x2006.main.CTTextParagraphProperties;
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import org.openxmlformats.schemas.drawingml.x2006.main.ThemeDocument;
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/**
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* A shared style sheet in a .pptx slide show
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*
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* @author Yegor Kozlov
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*/
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@Beta
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public class XSLFTheme extends POIXMLDocumentPart {
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private CTOfficeStyleSheet _theme;
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private Map<String, CTColor> _schemeColors;
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XSLFTheme() {
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super();
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_theme = CTOfficeStyleSheet.Factory.newInstance();
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}
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/**
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* @since POI 3.14-Beta1
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*/
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public XSLFTheme(PackagePart part) throws IOException, XmlException {
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super(part);
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ThemeDocument doc =
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ThemeDocument.Factory.parse(getPackagePart().getInputStream(), DEFAULT_XML_OPTIONS);
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_theme = doc.getTheme();
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initialize();
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}
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public void importTheme(XSLFTheme theme) {
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_theme = theme.getXmlObject();
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_schemeColors = theme._schemeColors;
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}
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private void initialize(){
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CTBaseStyles elems = _theme.getThemeElements();
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CTColorScheme scheme = elems.getClrScheme();
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// The color scheme is responsible for defining a list of twelve colors.
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_schemeColors = new HashMap<String, CTColor>(12);
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for(XmlObject o : scheme.selectPath("*")){
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CTColor c = (CTColor)o;
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String name = c.getDomNode().getLocalName();
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_schemeColors.put(name, c);
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}
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}
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/**
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* re-map colors
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*
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* @param cmap color map defined in the master slide referencing this theme
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*/
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void initColorMap(CTColorMapping cmap) {
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_schemeColors.put("bg1", _schemeColors.get(cmap.getBg1().toString()));
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_schemeColors.put("bg2", _schemeColors.get(cmap.getBg2().toString()));
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_schemeColors.put("tx1", _schemeColors.get(cmap.getTx1().toString()));
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_schemeColors.put("tx2", _schemeColors.get(cmap.getTx2().toString()));
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}
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/**
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*
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* @return name of this theme, e.g. "Office Theme"
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*/
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public String getName(){
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return _theme.getName();
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}
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/**
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* Set name of this theme
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*
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* @param name name of this theme
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*/
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public void setName(String name){
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_theme.setName(name);
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}
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/**
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* Get a color from the theme's color scheme by name
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*
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* @return a theme color or <code>null</code> if not found
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*/
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CTColor getCTColor(String name){
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return _schemeColors.get(name);
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}
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/**
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* While developing only!
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*/
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@Internal
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public CTOfficeStyleSheet getXmlObject() {
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return _theme;
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}
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protected final void commit() throws IOException {
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XmlOptions xmlOptions = new XmlOptions(DEFAULT_XML_OPTIONS);
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xmlOptions.setSaveSyntheticDocumentElement(
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new QName("http://schemas.openxmlformats.org/drawingml/2006/main", "theme"));
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PackagePart part = getPackagePart();
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OutputStream out = part.getOutputStream();
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getXmlObject().save(out, xmlOptions);
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out.close();
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}
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/**
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* @return typeface of the major font to use in a document.
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* Typically the major font is used for heading areas of a document.
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*
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*/
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public String getMajorFont(){
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return _theme.getThemeElements().getFontScheme().getMajorFont().getLatin().getTypeface();
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}
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/**
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* @return typeface of the minor font to use in a document.
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* Typically the monor font is used for normal text or paragraph areas.
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*
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*/
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public String getMinorFont(){
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return _theme.getThemeElements().getFontScheme().getMinorFont().getLatin().getTypeface();
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}
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CTTextParagraphProperties getDefaultParagraphStyle(){
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XmlObject[] o = _theme.selectPath(
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"declare namespace p='http://schemas.openxmlformats.org/presentationml/2006/main' " +
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"declare namespace a='http://schemas.openxmlformats.org/drawingml/2006/main' " +
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".//a:objectDefaults/a:spDef/a:lstStyle/a:defPPr");
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if(o.length == 1){
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return (CTTextParagraphProperties)o[0];
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}
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return null;
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}
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}
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