/**
* Check if the cloned sheet has drawings. If yes, then allocate a new drawing group ID and
* re-generate shape IDs
*
* @param sheet the cloned sheet
*/
public void CloneDrawings(InternalSheet sheet)
{
FindDrawingGroup();
if (drawingManager == null)
{
//this workbook does not have drawings
return;
}
//check if the cloned sheet has drawings
int aggLoc = sheet.AggregateDrawingRecords(drawingManager, false);
if (aggLoc != -1)
{
EscherAggregate agg = (EscherAggregate)sheet.FindFirstRecordBySid(EscherAggregate.sid);
EscherContainerRecord escherContainer = agg.GetEscherContainer();
if (escherContainer == null)
{
return;
}
EscherDggRecord dgg = drawingManager.GetDgg();
//register a new drawing group for the cloned sheet
int dgId = drawingManager.FindNewDrawingGroupId();
dgg.AddCluster(dgId, 0);
dgg.DrawingsSaved = dgg.DrawingsSaved + 1;
EscherDgRecord dg = null;
for (IEnumerator it = escherContainer.ChildRecords.GetEnumerator(); it.MoveNext(); )
{
Object er = it.Current;
if (er is EscherDgRecord)
{
dg = (EscherDgRecord)er;
//update id of the drawing in the cloned sheet
dg.Options = ((short)(dgId << 4));
}
else if (er is EscherContainerRecord)
{
//recursively find shape records and re-generate shapeId
ArrayList spRecords = new ArrayList();
EscherContainerRecord cp = (EscherContainerRecord)er;
for (IEnumerator spIt = cp.ChildRecords.GetEnumerator(); spIt.MoveNext(); )
{
EscherContainerRecord shapeContainer = (EscherContainerRecord)spIt.Current;
foreach (EscherRecord shapeChildRecord in shapeContainer.ChildRecords)
{
int recordId = shapeChildRecord.RecordId;
if (recordId == EscherSpRecord.RECORD_ID)
{
EscherSpRecord sp = (EscherSpRecord)shapeChildRecord;
int shapeId = drawingManager.AllocateShapeId((short)dgId, dg);
//allocateShapeId increments the number of shapes. roll back to the previous value
dg.NumShapes = (dg.NumShapes - 1);
sp.ShapeId = (shapeId);
}
else if (recordId == EscherOptRecord.RECORD_ID)
{
EscherOptRecord opt = (EscherOptRecord)shapeChildRecord;
EscherSimpleProperty prop = (EscherSimpleProperty)opt.Lookup(
EscherProperties.BLIP__BLIPTODISPLAY);
if (prop != null)
{
int pictureIndex = prop.PropertyValue;
// increment reference count for pictures
EscherBSERecord bse = GetBSERecord(pictureIndex);
bse.Ref = bse.Ref + 1;
}
}
}
}
}
}
}
}
