/**
* 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);
}
}
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);
}
public void TestFillFields()
{
IEscherRecordFactory f = new DefaultEscherRecordFactory();
byte[] data = HexRead.ReadFromString("0F 02 11 F1 00 00 00 00");
EscherRecord r = f.CreateRecord(data, 0);
r.FillFields(data, 0, f);
Assert.IsTrue(r is EscherContainerRecord);
Assert.AreEqual((short)0x020F, r.Options);
Assert.AreEqual(unchecked ((short)0xF111), r.RecordId);
data = HexRead.ReadFromString("0F 02 11 F1 08 00 00 00" +
" 02 00 22 F2 00 00 00 00");
r = f.CreateRecord(data, 0);
r.FillFields(data, 0, f);
EscherRecord c = r.GetChild(0);
Assert.IsFalse(c is EscherContainerRecord);
Assert.AreEqual(unchecked ((short)0x0002), c.Options);
Assert.AreEqual(unchecked ((short)0xF222), c.RecordId);
}
private void ConvertToEscherRecords(int offset, int size, byte[] data)
{
EscherRecordFactory recordFactory = new DefaultEscherRecordFactory();
int pos = offset;
while (pos < offset + size)
{
EscherRecord r = recordFactory.CreateRecord(data, pos);
int bytesRead = r.FillFields(data, pos, recordFactory);
escherRecords.Add(r);
pos += bytesRead;
}
}
private void FillEscherRecords(byte[] data, int offset, int size)
{
IEscherRecordFactory recordFactory = new DefaultEscherRecordFactory();
int pos = offset;
while (pos < offset + size)
{
EscherRecord r = recordFactory.CreateRecord(data, pos);
escherRecords.Add(r);
int bytesRead = r.FillFields(data, pos, recordFactory);
pos += bytesRead + 1; // There Is an empty byte between each top-level record in a Word doc
}
}
/**
* 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);
}
}
/**
* Collapses the drawing records into an aggregate.
*/
public static EscherAggregate CreateAggregate(IList records, int locFirstDrawingRecord, DrawingManager2 drawingManager)
{
// Keep track of any shape records Created so we can match them back to the object id's.
// Textbox objects are also treated as shape objects.
IList shapeRecords = new ArrayList();
EscherRecordFactory recordFactory = new CustomEscherRecordFactory(ref shapeRecords);
// Calculate the size of the buffer
EscherAggregate agg = new EscherAggregate(drawingManager);
int loc = locFirstDrawingRecord;
int dataSize = 0;
while (loc + 1 < records.Count &&
GetSid(records, loc) == DrawingRecord.sid &&
IsObjectRecord(records, loc + 1))
{
dataSize += ((DrawingRecord)records[loc]).Data.Length;
loc += 2;
}
// Create one big buffer
byte[] buffer = new byte[dataSize];
int offset = 0;
loc = locFirstDrawingRecord;
while (loc + 1 < records.Count &&
GetSid(records, loc) == DrawingRecord.sid &&
IsObjectRecord(records, loc + 1))
{
DrawingRecord drawingRecord = (DrawingRecord)records[loc];
Array.Copy(drawingRecord.Data, 0, buffer, offset, drawingRecord.Data.Length);
offset += drawingRecord.Data.Length;
loc += 2;
}
// Decode the shapes
// agg.escherRecords = new ArrayList();
int pos = 0;
while (pos < dataSize)
{
EscherRecord r = recordFactory.CreateRecord(buffer, pos);
int bytesRead = r.FillFields(buffer, pos, recordFactory);
agg.AddEscherRecord(r);
pos += bytesRead;
}
// Associate the object records with the shapes
loc = locFirstDrawingRecord;
int shapeIndex = 0;
agg.shapeToObj = new Hashtable();
while (loc + 1 < records.Count &&
GetSid(records, loc) == DrawingRecord.sid &&
IsObjectRecord(records, loc + 1))
{
Record objRecord = (Record)records[loc + 1];
agg.shapeToObj[shapeRecords[shapeIndex++]] = objRecord;
loc += 2;
}
return(agg);
}
