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Bug 34745 Update ddf.EscherTextboxRecord to be cleaner, and allow setting of new data

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git-svn-id: https://svn.apache.org/repos/asf/jakarta/poi/trunk@353675 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Glen Stampoultzis 2005-05-05 13:40:06 +00:00
parent 5c13261c93
commit 30f56f14bc
1 changed files with 30 additions and 40 deletions
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70
src/java/org/apache/poi/ddf/EscherTextboxRecord.java
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@ -17,18 +17,18 @@
package org.apache.poi.ddf;
import org.apache.poi.hssf.record.RecordFormatException;
import org.apache.poi.util.HexDump;
import org.apache.poi.util.LittleEndian;
import org.apache.poi.hssf.record.RecordFormatException;
import java.util.Iterator;
import java.util.List;
import java.util.ArrayList;
/**
* Supports text boxes
* Holds data from the parent application. Most commonly used to store
* text in the format of the parent application, rather than in
* Escher format. We don't attempt to understand the contents, since
* they will be in the parent's format, not Escher format.
*
* @author Glen Stampoultzis (glens at apache.org)
* @author Nick Burch (nick at torchbox dot com)
*/
public class EscherTextboxRecord extends EscherRecord
{
@ -55,29 +55,12 @@ public class EscherTextboxRecord extends EscherRecord
public int fillFields( byte[] data, int offset, EscherRecordFactory recordFactory )
{
int bytesRemaining = readHeader( data, offset );
if ( isContainerRecord() )
{
int bytesWritten = 0;
thedata = new byte[0];
offset += 8;
bytesWritten += 8;
while ( bytesRemaining > 0 )
{
EscherRecord child = recordFactory.createRecord( data, offset );
int childBytesWritten = child.fillFields( data, offset, recordFactory );
bytesWritten += childBytesWritten;
offset += childBytesWritten;
bytesRemaining -= childBytesWritten;
getChildRecords().add( child );
}
return bytesWritten;
}
else
{
thedata = new byte[bytesRemaining];
System.arraycopy( data, offset + 8, thedata, 0, bytesRemaining );
return bytesRemaining + 8;
}
// Save the data, ready for the calling code to do something
// useful with it
thedata = new byte[bytesRemaining];
System.arraycopy( data, offset + 8, thedata, 0, bytesRemaining );
return bytesRemaining + 8;
}
/**
@ -93,19 +76,9 @@ public class EscherTextboxRecord extends EscherRecord
LittleEndian.putShort(data, offset, getOptions());
LittleEndian.putShort(data, offset+2, getRecordId());
int remainingBytes = thedata.length;
for ( Iterator iterator = getChildRecords().iterator(); iterator.hasNext(); )
{
EscherRecord r = (EscherRecord) iterator.next();
remainingBytes += r.getRecordSize();
}
LittleEndian.putInt(data, offset+4, remainingBytes);
System.arraycopy(thedata, 0, data, offset+8, thedata.length);
int pos = offset+8+thedata.length;
for ( Iterator iterator = getChildRecords().iterator(); iterator.hasNext(); )
{
EscherRecord r = (EscherRecord) iterator.next();
pos += r.serialize(pos, data, listener );
}
listener.afterRecordSerialize( pos, getRecordId(), pos - offset, this );
int size = pos - offset;
@ -116,13 +89,30 @@ public class EscherTextboxRecord extends EscherRecord
/**
* Returns any extra data associated with this record. In practice excel
* does not seem to put anything here.
* does not seem to put anything here, but with PowerPoint this will
* contain the bytes that make up a TextHeaderAtom followed by a
* TextBytesAtom/TextCharsAtom
*/
public byte[] getData()
{
return thedata;
}
/**
* Sets the extra data (in the parent application's format) to be
* contained by the record. Used when the parent application changes
* the contents.
*/
public void setData(byte[] b, int start, int length)
{
thedata = new byte[length];
System.arraycopy(b,start,thedata,0,length);
}
public void setData(byte[] b) {
setData(b,0,b.length);
}
/**
* Returns the number of bytes that are required to serialize this record.
*