Initial, basic support for InteractiveInfoAtom
git-svn-id: https://svn.apache.org/repos/asf/jakarta/poi/trunk@497058 13f79535-47bb-0310-9956-ffa450edef68
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/* ====================================================================
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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.IOException;
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import java.io.OutputStream;
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import java.util.Date;
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import org.apache.poi.hslf.util.SystemTimeUtils;
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import org.apache.poi.util.LittleEndian;
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/**
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* Tne atom that holds metadata on Links in the document.
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* (The actual link is held Document.ExObjList.ExHyperlink)
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*
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* @author Nick Burch
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*/
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public class InteractiveInfoAtom extends RecordAtom
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{
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/**
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* Record header.
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*/
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private byte[] _header;
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/**
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* Record data.
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*/
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private byte[] _data;
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/**
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* Constructs a brand new link related atom record.
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*/
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protected InteractiveInfoAtom() {
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_header = new byte[8];
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_data = new byte[16];
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LittleEndian.putShort(_header, 2, (short)getRecordType());
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LittleEndian.putInt(_header, 4, _data.length);
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// It is fine for the other values to be zero
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}
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/**
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* Constructs the link related atom record from its
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* source data.
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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 InteractiveInfoAtom(byte[] source, int start, int len) {
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// Get 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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// Get the record data.
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_data = new byte[len-8];
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System.arraycopy(source,start+8,_data,0,len-8);
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// Must be at least 16 bytes long
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if(_data.length < 16) {
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throw new IllegalArgumentException("The length of the data for a InteractiveInfoAtom must be at least 16 bytes, but was only " + _data.length);
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}
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// First 4 bytes - no idea, normally 0
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// Second 4 bytes - the id of the link (from 1 onwards)
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// Third 4 bytes - no idea, normally 4
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// Fourth 4 bytes - no idea, normally 8
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}
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/**
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* Gets the link number. You will normally look the
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* ExHyperlink with this number to get the details.
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* @return the link number
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*/
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public int getNumber() {
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return LittleEndian.getInt(_data,4);
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}
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/**
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* Sets the link number
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* @param number the link number.
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*/
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public void setNumber(int number) {
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LittleEndian.putInt(_data,4,number);
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}
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/**
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* Get the first number - meaning unknown
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*/
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public int _getNumber1() {
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return LittleEndian.getInt(_data,0);
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}
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protected void _setNumber1(int val) {
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LittleEndian.putInt(_data, 0, val);
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}
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/**
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* Get the third number - meaning unknown
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*/
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public int _getNumber3() {
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return LittleEndian.getInt(_data,8);
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}
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protected void _setNumber3(int val) {
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LittleEndian.putInt(_data, 8, val);
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}
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/**
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* Get the fourth number - meaning unknown
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*/
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public int _getNumber4() {
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return LittleEndian.getInt(_data,12);
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}
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protected void _setNumber4(int val) {
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LittleEndian.putInt(_data, 12, val);
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}
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/**
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* Gets the record type.
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* @return the record type.
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*/
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public long getRecordType() { return RecordTypes.InteractiveInfoAtom.typeID; }
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/**
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* Write the contents of the record back, so it can be written
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* to disk
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*
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* @param out the output stream to write to.
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* @throws IOException if an error occurs.
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*/
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public void writeOut(OutputStream out) throws IOException {
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out.write(_header);
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out.write(_data);
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}
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}
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@ -121,7 +121,7 @@ public class RecordTypes {
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public static final Type ExControl = new Type(4078,null);
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public static final Type SlideListWithText = new Type(4080,SlideListWithText.class);
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public static final Type InteractiveInfo = new Type(4082,null);
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public static final Type InteractiveInfoAtom = new Type(4083,null);
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public static final Type InteractiveInfoAtom = new Type(4083,InteractiveInfoAtom.class);
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public static final Type UserEditAtom = new Type(4085,UserEditAtom.class);
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public static final Type CurrentUserAtom = new Type(4086,null);
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public static final Type DateTimeMCAtom = new Type(4087,null);
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BIN
src/scratchpad/testcases/org/apache/poi/hslf/data/WithLinks.ppt
Normal file
BIN
src/scratchpad/testcases/org/apache/poi/hslf/data/WithLinks.ppt
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Binary file not shown.
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/* ====================================================================
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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 junit.framework.TestCase;
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import java.io.ByteArrayOutputStream;
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import java.text.SimpleDateFormat;
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import java.util.Date;
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/**
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* Tests that InteractiveInfoAtom works properly.
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*
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* @author Nick Burch (nick at torchbox dot com)
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*/
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public class TestInteractiveInfoAtom extends TestCase {
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// From a real file
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private byte[] data_a = new byte[] {
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00, 00, 0xF3-256, 0x0F, 0x10, 00, 00, 00,
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00, 00, 00, 00, 01, 00, 00, 00,
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04, 00, 00, 00, 8, 00, 00, 00
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};
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private byte[] data_b = new byte[] {
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00, 00, 0xF3-256, 0x0F, 0x10, 00, 00, 00,
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00, 00, 00, 00, 04, 00, 00, 00,
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04, 00, 00, 00, 8, 00, 00, 00
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};
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public void testRecordType() throws Exception {
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InteractiveInfoAtom ia = new InteractiveInfoAtom(data_a, 0, data_a.length);
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assertEquals(4083l, ia.getRecordType());
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}
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public void testGetNumber() throws Exception {
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InteractiveInfoAtom ia = new InteractiveInfoAtom(data_a, 0, data_a.length);
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InteractiveInfoAtom ib = new InteractiveInfoAtom(data_b, 0, data_b.length);
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assertEquals(1, ia.getNumber());
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assertEquals(4, ib.getNumber());
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}
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public void testGetRest() throws Exception {
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InteractiveInfoAtom ia = new InteractiveInfoAtom(data_a, 0, data_a.length);
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InteractiveInfoAtom ib = new InteractiveInfoAtom(data_b, 0, data_b.length);
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assertEquals(0, ia._getNumber1());
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assertEquals(0, ib._getNumber1());
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assertEquals(4, ia._getNumber3());
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assertEquals(4, ib._getNumber3());
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assertEquals(8, ia._getNumber4());
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assertEquals(8, ib._getNumber4());
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}
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public void testWrite() throws Exception {
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InteractiveInfoAtom ia = new InteractiveInfoAtom(data_a, 0, data_a.length);
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ByteArrayOutputStream baos = new ByteArrayOutputStream();
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ia.writeOut(baos);
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byte[] b = baos.toByteArray();
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assertEquals(data_a.length, b.length);
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for(int i=0; i<data_a.length; i++) {
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assertEquals(data_a[i],b[i]);
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}
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}
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// Create A from scratch
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public void testCreate() throws Exception {
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InteractiveInfoAtom ia = new InteractiveInfoAtom();
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// Set values
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ia.setNumber(1);
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ia._setNumber1(0);
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ia._setNumber3(4);
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ia._setNumber4(8);
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// Check it's now the same as a
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ByteArrayOutputStream baos = new ByteArrayOutputStream();
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ia.writeOut(baos);
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byte[] b = baos.toByteArray();
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assertEquals(data_a.length, b.length);
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for(int i=0; i<data_a.length; i++) {
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assertEquals(data_a[i],b[i]);
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}
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}
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// Try to turn a into b
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public void testChange() throws Exception {
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InteractiveInfoAtom ia = new InteractiveInfoAtom(data_a, 0, data_a.length);
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// Change the number
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ia.setNumber(4);
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// Check bytes are now the same
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ByteArrayOutputStream baos = new ByteArrayOutputStream();
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ia.writeOut(baos);
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byte[] b = baos.toByteArray();
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// Should now be the same
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assertEquals(data_b.length, b.length);
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for(int i=0; i<data_b.length; i++) {
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assertEquals(data_b[i],b[i]);
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}
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}
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}
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