/**
* Performs a recursive search for pictures in the given list of escher records.
*
* @param escherRecords the escher records.
* @param pictures the list to populate with the pictures.
*/
private void SearchForPictures(IList escherRecords, List <Picture> pictures)
{
foreach (EscherRecord escherRecord in escherRecords)
{
if (escherRecord is EscherBSERecord)
{
EscherBSERecord bse = (EscherBSERecord)escherRecord;
EscherBlipRecord blip = bse.BlipRecord;
if (blip != null)
{
pictures.Add(new Picture(blip.PictureData));
}
else if (bse.Offset > 0)
{
// Blip stored in delay stream, which in a word doc, is the main stream
EscherRecordFactory recordFactory = new DefaultEscherRecordFactory();
EscherRecord record = recordFactory.CreateRecord(_mainStream, bse.Offset);
if (record is EscherBlipRecord)
{
record.FillFields(_mainStream, bse.Offset, recordFactory);
blip = (EscherBlipRecord)record;
pictures.Add(new Picture(blip.PictureData));
}
}
}
// Recursive call.
SearchForPictures(escherRecord.ChildRecords, pictures);
}
}
public byte[] GetPictureData()
{
EscherContainerRecord shapeDescription = od.GetEscherShapeRecordContainer(GetShapeId());
if (shapeDescription == null)
{
return(null);
}
EscherRecord escherOptRecord = (EscherRecord)shapeDescription
.GetChildById(EscherOptRecord.RECORD_ID);
if (escherOptRecord == null)
{
return(null);
}
EscherSimpleProperty escherProperty = (EscherSimpleProperty)((EscherOptRecord)escherOptRecord)
.Lookup(EscherProperties.BLIP__BLIPTODISPLAY);
if (escherProperty == null)
{
return(null);
}
int bitmapIndex = escherProperty.PropertyValue;
EscherBlipRecord escherBlipRecord = od.GetBitmapRecord(bitmapIndex);
if (escherBlipRecord == null)
{
return(null);
}
return(escherBlipRecord.PictureData);
}
private EscherBlipRecord GetBitmapRecord(int bitmapIndex)
{
List <EscherContainerRecord> bContainers = _escherRecordHolder
.GetBStoreContainers();
if (bContainers == null || bContainers.Count != 1)
{
return(null);
}
EscherContainerRecord bContainer = bContainers[0];
IList bitmapRecords = bContainer.ChildRecords;
if (bitmapRecords.Count < bitmapIndex)
{
return(null);
}
EscherRecord imageRecord = (EscherRecord)bitmapRecords[bitmapIndex - 1];
if (imageRecord is EscherBlipRecord)
{
return((EscherBlipRecord)imageRecord);
}
if (imageRecord is EscherBSERecord)
{
EscherBSERecord bseRecord = (EscherBSERecord)imageRecord;
EscherBlipRecord blip = bseRecord.BlipRecord;
if (blip != null)
{
return(blip);
}
if (bseRecord.Offset > 0)
{
/*
* Blip stored in delay stream, which in a word doc, is the main
* stream
*/
EscherRecordFactory recordFactory = new DefaultEscherRecordFactory();
EscherRecord record = recordFactory.CreateRecord(_mainStream,
bseRecord.Offset);
if (record is EscherBlipRecord)
{
record.FillFields(_mainStream, bseRecord.Offset,
recordFactory);
return((EscherBlipRecord)record);
}
}
}
return(null);
}
/**
* Performs a recursive search for pictures in the given list of escher records.
*
* @param escherRecords the escher records.
* @param pictures the list to populate with the pictures.
*/
private void SearchForPictures(IList escherRecords, List <Picture> pictures)
{
foreach (EscherRecord escherRecord in escherRecords)
{
if (escherRecord is EscherBSERecord)
{
EscherBSERecord bse = (EscherBSERecord)escherRecord;
EscherBlipRecord blip = bse.BlipRecord;
if (blip != null)
{
pictures.Add(new Picture(blip.PictureData));
}
else if (bse.Offset > 0)
{
try
{
// Blip stored in delay stream, which in a word doc, is the main stream
IEscherRecordFactory recordFactory = new DefaultEscherRecordFactory();
EscherRecord record = recordFactory.CreateRecord(_mainStream, bse.Offset);
if (record is EscherBlipRecord)
{
record.FillFields(_mainStream, bse.Offset, recordFactory);
blip = (EscherBlipRecord)record;
pictures.Add(new Picture(blip.PictureData));
}
}
catch (Exception exc)
{
logger.Log(
POILogger.WARN,
"Unable to load picture from BLIB record at offset #",
bse.Offset, exc);
}
}
}
// Recursive call.
SearchForPictures(escherRecord.ChildRecords, pictures);
}
}
/// <summary>
/// Constructs a picture object.
/// </summary>
/// <param name="blip">the underlying blip record containing the bitmap data.</param>
public HSSFPictureData(EscherBlipRecord blip)
{
this.blip = blip;
}
