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Initial, basic support for InteractiveInfoAtom 

git-svn-id: https://svn.apache.org/repos/asf/jakarta/poi/trunk@497058 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Nick Burch 2007-01-17 16:05:26 +00:00
parent a414926ecf
commit 3577d348c3
4 changed files with 278 additions and 1 deletions
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152
src/scratchpad/src/org/apache/poi/hslf/record/InteractiveInfoAtom.java Normal file
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@ -0,0 +1,152 @@
/* ====================================================================
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.hslf.record;
import java.io.IOException;
import java.io.OutputStream;
import java.util.Date;
import org.apache.poi.hslf.util.SystemTimeUtils;
import org.apache.poi.util.LittleEndian;
/**
* Tne atom that holds metadata on Links in the document.
* (The actual link is held Document.ExObjList.ExHyperlink)
*
* @author Nick Burch
*/
public class InteractiveInfoAtom extends RecordAtom
{
/**
* Record header.
*/
private byte[] _header;
/**
* Record data.
*/
private byte[] _data;
/**
* Constructs a brand new link related atom record.
*/
protected InteractiveInfoAtom() {
_header = new byte[8];
_data = new byte[16];
LittleEndian.putShort(_header, 2, (short)getRecordType());
LittleEndian.putInt(_header, 4, _data.length);
// It is fine for the other values to be zero
}
/**
* Constructs the link related atom record from its
* source data.
*
* @param source the source data as a byte array.
* @param start the start offset into the byte array.
* @param len the length of the slice in the byte array.
*/
protected InteractiveInfoAtom(byte[] source, int start, int len) {
// Get the header.
_header = new byte[8];
System.arraycopy(source,start,_header,0,8);
// Get the record data.
_data = new byte[len-8];
System.arraycopy(source,start+8,_data,0,len-8);
// Must be at least 16 bytes long
if(_data.length < 16) {
throw new IllegalArgumentException("The length of the data for a InteractiveInfoAtom must be at least 16 bytes, but was only " + _data.length);
}
// First 4 bytes - no idea, normally 0
// Second 4 bytes - the id of the link (from 1 onwards)
// Third 4 bytes - no idea, normally 4
// Fourth 4 bytes - no idea, normally 8
}
/**
* Gets the link number. You will normally look the
* ExHyperlink with this number to get the details.
* @return the link number
*/
public int getNumber() {
return LittleEndian.getInt(_data,4);
}
/**
* Sets the link number
* @param number the link number.
*/
public void setNumber(int number) {
LittleEndian.putInt(_data,4,number);
}
/**
* Get the first number - meaning unknown
*/
public int _getNumber1() {
return LittleEndian.getInt(_data,0);
}
protected void _setNumber1(int val) {
LittleEndian.putInt(_data, 0, val);
}
/**
* Get the third number - meaning unknown
*/
public int _getNumber3() {
return LittleEndian.getInt(_data,8);
}
protected void _setNumber3(int val) {
LittleEndian.putInt(_data, 8, val);
}
/**
* Get the fourth number - meaning unknown
*/
public int _getNumber4() {
return LittleEndian.getInt(_data,12);
}
protected void _setNumber4(int val) {
LittleEndian.putInt(_data, 12, val);
}
/**
* Gets the record type.
* @return the record type.
*/
public long getRecordType() { return RecordTypes.InteractiveInfoAtom.typeID; }
/**
* Write the contents of the record back, so it can be written
* to disk
*
* @param out the output stream to write to.
* @throws IOException if an error occurs.
*/
public void writeOut(OutputStream out) throws IOException {
out.write(_header);
out.write(_data);
}
}

2
src/scratchpad/src/org/apache/poi/hslf/record/RecordTypes.java
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@ -121,7 +121,7 @@ public class RecordTypes {
public static final Type ExControl = new Type(4078,null);
public static final Type SlideListWithText = new Type(4080,SlideListWithText.class);
public static final Type InteractiveInfo = new Type(4082,null);
public static final Type InteractiveInfoAtom = new Type(4083,null);
public static final Type InteractiveInfoAtom = new Type(4083,InteractiveInfoAtom.class);
public static final Type UserEditAtom = new Type(4085,UserEditAtom.class);
public static final Type CurrentUserAtom = new Type(4086,null);
public static final Type DateTimeMCAtom = new Type(4087,null);

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src/scratchpad/testcases/org/apache/poi/hslf/data/WithLinks.ppt Normal file
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src/scratchpad/testcases/org/apache/poi/hslf/record/TestInteractiveInfoAtom.java Normal file
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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.hslf.record;
import junit.framework.TestCase;
import java.io.ByteArrayOutputStream;
import java.text.SimpleDateFormat;
import java.util.Date;
/**
* Tests that InteractiveInfoAtom works properly.
*
* @author Nick Burch (nick at torchbox dot com)
*/
public class TestInteractiveInfoAtom extends TestCase {
// From a real file
private byte[] data_a = new byte[] {
00, 00, 0xF3-256, 0x0F, 0x10, 00, 00, 00,
00, 00, 00, 00, 01, 00, 00, 00,
04, 00, 00, 00, 8, 00, 00, 00
};
private byte[] data_b = new byte[] {
00, 00, 0xF3-256, 0x0F, 0x10, 00, 00, 00,
00, 00, 00, 00, 04, 00, 00, 00,
04, 00, 00, 00, 8, 00, 00, 00
};
public void testRecordType() throws Exception {
InteractiveInfoAtom ia = new InteractiveInfoAtom(data_a, 0, data_a.length);
assertEquals(4083l, ia.getRecordType());
}
public void testGetNumber() throws Exception {
InteractiveInfoAtom ia = new InteractiveInfoAtom(data_a, 0, data_a.length);
InteractiveInfoAtom ib = new InteractiveInfoAtom(data_b, 0, data_b.length);
assertEquals(1, ia.getNumber());
assertEquals(4, ib.getNumber());
}
public void testGetRest() throws Exception {
InteractiveInfoAtom ia = new InteractiveInfoAtom(data_a, 0, data_a.length);
InteractiveInfoAtom ib = new InteractiveInfoAtom(data_b, 0, data_b.length);
assertEquals(0, ia._getNumber1());
assertEquals(0, ib._getNumber1());
assertEquals(4, ia._getNumber3());
assertEquals(4, ib._getNumber3());
assertEquals(8, ia._getNumber4());
assertEquals(8, ib._getNumber4());
}
public void testWrite() throws Exception {
InteractiveInfoAtom ia = new InteractiveInfoAtom(data_a, 0, data_a.length);
ByteArrayOutputStream baos = new ByteArrayOutputStream();
ia.writeOut(baos);
byte[] b = baos.toByteArray();
assertEquals(data_a.length, b.length);
for(int i=0; i<data_a.length; i++) {
assertEquals(data_a[i],b[i]);
}
}
// Create A from scratch
public void testCreate() throws Exception {
InteractiveInfoAtom ia = new InteractiveInfoAtom();
// Set values
ia.setNumber(1);
ia._setNumber1(0);
ia._setNumber3(4);
ia._setNumber4(8);
// Check it's now the same as a
ByteArrayOutputStream baos = new ByteArrayOutputStream();
ia.writeOut(baos);
byte[] b = baos.toByteArray();
assertEquals(data_a.length, b.length);
for(int i=0; i<data_a.length; i++) {
assertEquals(data_a[i],b[i]);
}
}
// Try to turn a into b
public void testChange() throws Exception {
InteractiveInfoAtom ia = new InteractiveInfoAtom(data_a, 0, data_a.length);
// Change the number
ia.setNumber(4);
// Check bytes are now the same
ByteArrayOutputStream baos = new ByteArrayOutputStream();
ia.writeOut(baos);
byte[] b = baos.toByteArray();
// Should now be the same
assertEquals(data_b.length, b.length);
for(int i=0; i<data_b.length; i++) {
assertEquals(data_b[i],b[i]);
}
}
}