* @return the picture data for this picture.
*/
public PictureData getPictureData(){
SlideShow ppt = getSheet().getSlideShow();
PictureData[] pict = ppt.getPictureData();
Document doc = ppt.getDocumentRecord();
EscherContainerRecord dggContainer = doc.getPPDrawingGroup().getDggContainer();
EscherContainerRecord bstore = (EscherContainerRecord)Shape.getEscherChild(dggContainer, EscherContainerRecord.BSTORE_CONTAINER);
List lst = bstore.getChildRecords();
int idx = getPictureIndex()-1;
EscherBSERecord bse = (EscherBSERecord)lst.get(idx);