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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.xssf.usermodel;
-
- import java.io.IOException;
- import java.io.InputStream;
-
- import javax.xml.namespace.QName;
-
- import org.apache.logging.log4j.LogManager;
- import org.apache.logging.log4j.Logger;
- import org.apache.poi.ooxml.POIXMLDocumentPart;
- import org.apache.poi.ooxml.POIXMLException;
- import org.apache.poi.openxml4j.opc.PackagePart;
- import org.apache.poi.openxml4j.opc.PackageRelationshipTypes;
- import org.apache.poi.poifs.filesystem.DirectoryEntry;
- import org.apache.poi.poifs.filesystem.FileMagic;
- import org.apache.poi.poifs.filesystem.POIFSFileSystem;
- import org.apache.poi.ss.usermodel.ObjectData;
- import org.apache.poi.util.IOUtils;
- import org.apache.xmlbeans.XmlCursor;
- import org.openxmlformats.schemas.drawingml.x2006.main.CTNonVisualDrawingProps;
- import org.openxmlformats.schemas.drawingml.x2006.main.CTOfficeArtExtension;
- import org.openxmlformats.schemas.drawingml.x2006.main.CTOfficeArtExtensionList;
- import org.openxmlformats.schemas.drawingml.x2006.main.CTPoint2D;
- import org.openxmlformats.schemas.drawingml.x2006.main.CTPositiveSize2D;
- import org.openxmlformats.schemas.drawingml.x2006.main.CTPresetGeometry2D;
- import org.openxmlformats.schemas.drawingml.x2006.main.CTShapeProperties;
- import org.openxmlformats.schemas.drawingml.x2006.main.CTTransform2D;
- import org.openxmlformats.schemas.drawingml.x2006.main.STShapeType;
- import org.openxmlformats.schemas.drawingml.x2006.spreadsheetDrawing.CTShape;
- import org.openxmlformats.schemas.drawingml.x2006.spreadsheetDrawing.CTShapeNonVisual;
- import org.openxmlformats.schemas.spreadsheetml.x2006.main.CTOleObject;
-
- /**
- * Represents binary object (i.e. OLE) data stored in the file. Eg. A GIF, JPEG etc...
- */
- public class XSSFObjectData extends XSSFSimpleShape implements ObjectData {
- private static final Logger LOG = LogManager.getLogger(XSSFObjectData.class);
-
- /**
- * A default instance of CTShape used for creating new shapes.
- */
- private static CTShape prototype;
-
- private CTOleObject oleObject;
-
- protected XSSFObjectData(XSSFDrawing drawing, CTShape ctShape) {
- super(drawing, ctShape);
- }
-
- /**
- * Prototype with the default structure of a new auto-shape.
- */
- protected static CTShape prototype() {
- final String drawNS = "http://schemas.microsoft.com/office/drawing/2010/main";
-
- if(prototype == null) {
- CTShape shape = CTShape.Factory.newInstance();
-
- CTShapeNonVisual nv = shape.addNewNvSpPr();
- CTNonVisualDrawingProps nvp = nv.addNewCNvPr();
- nvp.setId(1);
- nvp.setName("Shape 1");
- // nvp.setHidden(true);
- CTOfficeArtExtensionList extLst = nvp.addNewExtLst();
- // https://msdn.microsoft.com/en-us/library/dd911027(v=office.12).aspx
- CTOfficeArtExtension ext = extLst.addNewExt();
- ext.setUri("{63B3BB69-23CF-44E3-9099-C40C66FF867C}");
- try (XmlCursor cur = ext.newCursor()) {
- cur.toEndToken();
- cur.beginElement(new QName(drawNS, "compatExt", "a14"));
- cur.insertNamespace("a14", drawNS);
- cur.insertAttributeWithValue("spid", "_x0000_s1");
- }
-
- nv.addNewCNvSpPr();
-
- CTShapeProperties sp = shape.addNewSpPr();
- CTTransform2D t2d = sp.addNewXfrm();
- CTPositiveSize2D p1 = t2d.addNewExt();
- p1.setCx(0);
- p1.setCy(0);
- CTPoint2D p2 = t2d.addNewOff();
- p2.setX(0);
- p2.setY(0);
-
- CTPresetGeometry2D geom = sp.addNewPrstGeom();
- geom.setPrst(STShapeType.RECT);
- geom.addNewAvLst();
-
- prototype = shape;
- }
- return prototype;
- }
-
-
-
-
- @Override
- public String getOLE2ClassName() {
- return getOleObject().getProgId();
- }
-
- /**
- * @return the CTOleObject associated with the shape
- */
- public CTOleObject getOleObject() {
- if (oleObject == null) {
- long shapeId = getCTShape().getNvSpPr().getCNvPr().getId();
- oleObject = getSheet().readOleObject(shapeId);
- if (oleObject == null) {
- throw new POIXMLException("Ole object not found in sheet container - it's probably a control element");
- }
- }
- return oleObject;
- }
-
- @Override
- public byte[] getObjectData() throws IOException {
- try (InputStream is = getObjectPart().getInputStream()) {
- return IOUtils.toByteArray(is);
- }
- }
-
- /**
- * @return the package part of the object data
- */
- public PackagePart getObjectPart() {
- if (!getOleObject().isSetId()) {
- throw new POIXMLException("Invalid ole object found in sheet container");
- }
- POIXMLDocumentPart pdp = getSheet().getRelationById(getOleObject().getId());
- return (pdp == null) ? null : pdp.getPackagePart();
- }
-
- @Override
- public boolean hasDirectoryEntry() {
- InputStream is = null;
- try {
- is = getObjectPart().getInputStream();
- is = FileMagic.prepareToCheckMagic(is);
- return FileMagic.valueOf(is) == FileMagic.OLE2;
- } catch (IOException e) {
- LOG.atWarn().withThrowable(e).log("can't determine if directory entry exists");
- return false;
- } finally {
- IOUtils.closeQuietly(is);
- }
- }
-
- @Override
- public DirectoryEntry getDirectory() throws IOException {
- try (InputStream is = getObjectPart().getInputStream()) {
- return new POIFSFileSystem(is).getRoot();
- }
- }
-
- /**
- * The filename of the embedded image
- */
- @Override
- public String getFileName() {
- return getObjectPart().getPartName().getName();
- }
-
- protected XSSFSheet getSheet() {
- return (XSSFSheet)getDrawing().getParent();
- }
-
- @Override
- public XSSFPictureData getPictureData() {
- try (XmlCursor cur = getOleObject().newCursor()) {
- if (cur.toChild(XSSFRelation.NS_SPREADSHEETML, "objectPr")) {
- String blipId = cur.getAttributeText(new QName(PackageRelationshipTypes.CORE_PROPERTIES_ECMA376_NS, "id"));
- return (XSSFPictureData)getSheet().getRelationById(blipId);
- }
- return null;
- }
- }
-
- @Override
- public String getContentType() {
- return getObjectPart().getContentType();
- }
- }
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