| /* |
| * ==================================================================== |
| * 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 org.apache.poi.xslf.model; |
| |
| import static org.apache.poi.ooxml.util.XPathHelper.selectProperty; |
| |
| import java.util.function.Consumer; |
| |
| import javax.xml.namespace.QName; |
| import javax.xml.stream.XMLStreamReader; |
| |
| import org.apache.poi.util.Internal; |
| import org.apache.poi.xslf.usermodel.XMLSlideShow; |
| import org.apache.poi.xslf.usermodel.XSLFShape; |
| import org.apache.poi.xslf.usermodel.XSLFSheet; |
| import org.apache.poi.xslf.usermodel.XSLFSlideMaster; |
| import org.apache.poi.xslf.usermodel.XSLFTextParagraph; |
| import org.apache.xmlbeans.XmlException; |
| import org.openxmlformats.schemas.drawingml.x2006.main.CTTextListStyle; |
| import org.openxmlformats.schemas.drawingml.x2006.main.CTTextParagraph; |
| import org.openxmlformats.schemas.drawingml.x2006.main.CTTextParagraphProperties; |
| |
| @Internal |
| public final class ParagraphPropertyFetcher<T> extends PropertyFetcher<T> { |
| public interface ParaPropFetcher<S> { |
| void fetch (CTTextParagraphProperties props, Consumer<S> val); |
| } |
| |
| |
| static final String PML_NS = "http://schemas.openxmlformats.org/presentationml/2006/main"; |
| static final String DML_NS = "http://schemas.openxmlformats.org/drawingml/2006/main"; |
| |
| private static final QName[] TX_BODY = { new QName(PML_NS, "txBody") }; |
| private static final QName[] LST_STYLE = { new QName(DML_NS, "lstStyle") }; |
| |
| private final XSLFTextParagraph para; |
| int _level; |
| private final ParaPropFetcher<T> fetcher; |
| |
| public ParagraphPropertyFetcher(XSLFTextParagraph para, ParaPropFetcher<T> fetcher) { |
| this.para = para; |
| _level = para.getIndentLevel(); |
| this.fetcher = fetcher; |
| } |
| |
| public boolean fetch(XSLFShape shape) { |
| // this is only called when propagating to parent styles |
| try { |
| fetchProp(select(shape, _level)); |
| } catch (XmlException ignored) { |
| } |
| return isSet(); |
| } |
| |
| public T fetchProperty(XSLFShape shape) { |
| final XSLFSheet sheet = shape.getSheet(); |
| |
| if (!(sheet instanceof XSLFSlideMaster)) { |
| fetchParagraphProp(); |
| fetchShapeProp(shape); |
| fetchThemeProp(shape); |
| } |
| |
| fetchMasterProp(); |
| |
| return isSet() ? getValue() : null; |
| } |
| |
| private void fetchParagraphProp() { |
| fetchProp(para.getXmlObject().getPPr()); |
| } |
| |
| private void fetchShapeProp(XSLFShape shape) { |
| if (!isSet()) { |
| shape.fetchShapeProperty(this); |
| } |
| } |
| |
| private void fetchThemeProp(XSLFShape shape) { |
| if (!isSet()) { |
| fetchProp(getThemeProps(shape, _level)); |
| } |
| } |
| |
| private void fetchMasterProp() { |
| // defaults for placeholders are defined in the slide master |
| // TODO: determine master shape |
| if (!isSet()) { |
| fetchProp(para.getDefaultMasterStyle()); |
| } |
| } |
| |
| private void fetchProp(CTTextParagraphProperties props) { |
| if (props != null) { |
| fetcher.fetch(props, this::setValue); |
| } |
| } |
| |
| static CTTextParagraphProperties select(XSLFShape shape, int level) throws XmlException { |
| QName[] lvlProp = { new QName(DML_NS, "lvl" + (level + 1) + "pPr") }; |
| return selectProperty(shape.getXmlObject(), |
| CTTextParagraphProperties.class, ParagraphPropertyFetcher::parse, TX_BODY, LST_STYLE, lvlProp); |
| } |
| |
| static CTTextParagraphProperties parse(XMLStreamReader reader) throws XmlException { |
| CTTextParagraph para = CTTextParagraph.Factory.parse(reader); |
| return (para != null && para.isSetPPr()) ? para.getPPr() : null; |
| } |
| |
| static CTTextParagraphProperties getThemeProps(XSLFShape shape, int _level) { |
| if (shape.isPlaceholder()) { |
| return null; |
| } |
| |
| // if it is a plain text box then take defaults from presentation.xml |
| @SuppressWarnings("resource") |
| final XMLSlideShow ppt = shape.getSheet().getSlideShow(); |
| |
| CTTextListStyle dts = ppt.getCTPresentation().getDefaultTextStyle(); |
| if (dts == null) { |
| return null; |
| } |
| |
| switch (_level) { |
| case 0: |
| return dts.getLvl1PPr(); |
| case 1: |
| return dts.getLvl2PPr(); |
| case 2: |
| return dts.getLvl3PPr(); |
| case 3: |
| return dts.getLvl4PPr(); |
| case 4: |
| return dts.getLvl5PPr(); |
| case 5: |
| return dts.getLvl6PPr(); |
| case 6: |
| return dts.getLvl7PPr(); |
| case 7: |
| return dts.getLvl8PPr(); |
| case 8: |
| return dts.getLvl9PPr(); |
| default: |
| return null; |
| } |
| } |
| } |