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- /* ====================================================================
- 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);
- }
-
- }
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