| /* ==================================================================== |
| 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.xdgf.usermodel; |
| |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.util.ArrayList; |
| import java.util.Collection; |
| import java.util.List; |
| |
| import org.apache.poi.POIXMLDocument; |
| import org.apache.poi.POIXMLDocumentPart; |
| import org.apache.poi.POIXMLException; |
| import org.apache.poi.openxml4j.exceptions.OpenXML4JException; |
| import org.apache.poi.openxml4j.opc.OPCPackage; |
| import org.apache.poi.openxml4j.opc.PackagePart; |
| import org.apache.poi.openxml4j.opc.PackageRelationshipTypes; |
| import org.apache.poi.util.PackageHelper; |
| import org.apache.xmlbeans.XmlException; |
| |
| import com.microsoft.schemas.office.visio.x2012.main.VisioDocumentDocument1; |
| import com.microsoft.schemas.office.visio.x2012.main.VisioDocumentType; |
| |
| /** |
| * This is your high-level starting point for working with Visio XML |
| * documents (.vsdx). |
| * |
| * Currently, only read support has been implemented, and the API is |
| * not mature and is subject to change. |
| * |
| * For more information about the visio XML format (with an XSD 1.0 |
| * schema), you can find documentation at |
| * https://msdn.microsoft.com/en-us/library/hh645006(v=office.12).aspx |
| * |
| * That document lacks in some areas, but you can find additional |
| * documentation and an updated XSD 1.1 schema at |
| * https://msdn.microsoft.com/en-us/library/office/jj684209(v=office.15).aspx |
| * |
| * Each provides different details, but the SharePoint reference |
| * has better documentation and is more useful. |
| */ |
| public class XmlVisioDocument extends POIXMLDocument { |
| |
| protected XDGFPages _pages; |
| protected XDGFMasters _masters; |
| protected XDGFDocument _document; |
| |
| public XmlVisioDocument(OPCPackage pkg) throws IOException { |
| super(pkg, PackageRelationshipTypes.VISIO_CORE_DOCUMENT); |
| |
| VisioDocumentType document; |
| |
| try { |
| document = VisioDocumentDocument1.Factory.parse(getPackagePart().getInputStream()).getVisioDocument(); |
| } catch (XmlException e) { |
| throw new POIXMLException(e); |
| } catch (IOException e) { |
| throw new POIXMLException(e); |
| } |
| |
| _document = new XDGFDocument(document); |
| |
| //build a tree of POIXMLDocumentParts, this document being the root |
| load(new XDGFFactory(_document)); |
| } |
| |
| public XmlVisioDocument(InputStream is) throws IOException { |
| this(PackageHelper.open(is)); |
| } |
| |
| @Override |
| protected void onDocumentRead() throws IOException { |
| |
| // by the time this gets called, all other document parts should |
| // have been loaded, so it's safe to build the document structure |
| |
| // note that in other onDocumentRead(), relations/etc may not have |
| // loaded yet, so it's not quite safe |
| |
| for (POIXMLDocumentPart part : getRelations()) { |
| |
| // organize the document pieces |
| if (part instanceof XDGFPages) |
| _pages = (XDGFPages) part; |
| |
| else if (part instanceof XDGFMasters) |
| _masters = (XDGFMasters) part; |
| } |
| |
| if (_masters != null) |
| _masters.onDocumentRead(); |
| |
| _pages.onDocumentRead(); |
| } |
| |
| /** |
| * Not currently implemented |
| */ |
| @Override |
| public List<PackagePart> getAllEmbedds() throws OpenXML4JException { |
| return new ArrayList<PackagePart>(); |
| } |
| |
| // |
| // Useful public API goes here |
| // |
| |
| /** |
| * @return pages ordered by page number |
| */ |
| public Collection<XDGFPage> getPages() { |
| return _pages.getPageList(); |
| } |
| |
| public XDGFStyleSheet getStyleById(long id) { |
| return _document.getStyleById(id); |
| } |
| |
| } |