189 lines
5.8 KiB
Java
189 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.hslf.record;
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import java.io.OutputStream;
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import java.io.IOException;
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import org.apache.poi.util.LittleEndian;
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import org.apache.poi.util.POILogger;
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/**
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* This data represents an embedded object in the document.
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*
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* @author Daniel Noll
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*/
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public class ExEmbed extends RecordContainer {
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/**
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* Record header data.
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*/
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private byte[] _header;
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// Links to our more interesting children
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private ExEmbedAtom embedAtom;
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private ExOleObjAtom oleObjAtom;
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private CString menuName;
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private CString progId;
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private CString clipboardName;
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/**
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* Set things up, and find our more interesting children
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*
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* @param source the source data as a byte array.
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* @param start the start offset into the byte array.
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* @param len the length of the slice in the byte array.
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*/
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protected ExEmbed(byte[] source, int start, int len) {
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// Grab the header
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_header = new byte[8];
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System.arraycopy(source,start,_header,0,8);
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// Find our children
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_children = Record.findChildRecords(source,start+8,len-8);
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findInterestingChildren();
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}
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/**
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* Create a new ExEmbed, with blank fields
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*/
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public ExEmbed() {
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_header = new byte[8];
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_children = new Record[5];
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// Setup our header block
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_header[0] = 0x0f; // We are a container record
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LittleEndian.putShort(_header, 2, (short)getRecordType());
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// Setup our child records
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CString cs1 = new CString();
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CString cs2 = new CString();
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CString cs3 = new CString();
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// cs1.setCount(0x00);
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// cs2.setCount(0x10);
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_children[0] = new ExEmbedAtom();
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_children[1] = new ExOleObjAtom();
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_children[2] = cs1;
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_children[3] = cs2;
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_children[4] = cs3;
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findInterestingChildren();
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}
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/**
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* Go through our child records, picking out the ones that are
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* interesting, and saving those for use by the easy helper methods.
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*/
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private void findInterestingChildren() {
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// First child should be the ExHyperlinkAtom
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if(_children[0] instanceof ExEmbedAtom) {
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embedAtom = (ExEmbedAtom)_children[0];
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} else {
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logger.log(POILogger.ERROR, "First child record wasn't a ExEmbedAtom, was of type " + _children[0].getRecordType());
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}
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// Second child should be the ExOleObjAtom
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if (_children[1] instanceof ExOleObjAtom) {
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oleObjAtom = (ExOleObjAtom)_children[1];
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} else {
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logger.log(POILogger.ERROR, "Second child record wasn't a ExOleObjAtom, was of type " + _children[1].getRecordType());
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}
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for (int i = 2; i < _children.length; i++) {
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if (_children[i] instanceof CString){
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if (menuName == null) menuName = (CString)_children[i];
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else if (progId == null) progId = (CString)_children[i];
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else if (clipboardName == null) clipboardName = (CString)_children[i];
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} else {
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logger.log(POILogger.ERROR, "Record after atoms wasn't a CString, was of type " + _children[i].getRecordType());
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}
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}
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}
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/**
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* Gets the {@link ExEmbedAtom}.
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*
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* @return the {@link ExEmbedAtom}.
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*/
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public ExEmbedAtom getExEmbedAtom()
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{
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return embedAtom;
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}
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/**
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* Gets the {@link ExOleObjAtom}.
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*
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* @return the {@link ExOleObjAtom}.
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*/
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public ExOleObjAtom getExOleObjAtom()
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{
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return oleObjAtom;
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}
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/**
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* Gets the name used for menus and the Links dialog box.
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*
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* @return the name used for menus and the Links dialog box.
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*/
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public String getMenuName()
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{
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return menuName == null ? null : menuName.getText();
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}
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/**
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* Gets the OLE Programmatic Identifier.
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*
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* @return the OLE Programmatic Identifier.
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*/
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public String getProgId()
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{
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return progId == null ? null : progId.getText();
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}
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/**
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* Gets the name that appears in the paste special dialog.
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*
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* @return the name that appears in the paste special dialog.
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*/
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public String getClipboardName()
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{
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return clipboardName == null ? null : clipboardName.getText();
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}
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/**
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* Returns the type (held as a little endian in bytes 3 and 4)
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* that this class handles.
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*
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* @return the record type.
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*/
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public long getRecordType() {
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return RecordTypes.ExEmbed.typeID;
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}
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/**
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* Have the contents printer out into an OutputStream, used when
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* writing a file back out to disk.
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*
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* @param out the output stream.
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* @throws IOException if there was an error writing to the stream.
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*/
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public void writeOut(OutputStream out) throws IOException {
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writeOut(_header[0],_header[1],getRecordType(),_children,out);
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}
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}
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