thumbnailList.setDrawDeletedItems(drawDeletedItems);
if(dndSupport == DND_SUPPORT_FILES){
thumbnailList.setTransferHandler(new VisualListExportTransferHandler(pdfLoader));
}else if(dndSupport == DND_SUPPORT_JAVAOBJECTS){
thumbnailList.setTransferHandler(new VisualListTransferHandler());
}else if(dndSupport == DND_SUPPORT_FILES_AND_JAVAOBJECTS){
thumbnailList.setTransferHandler(new VisualListTransferHandler(pdfLoader));
}else{
thumbnailList.setTransferHandler(new VisualListExportTransferHandler(null));
}
thumbnailList.setDragEnabled(true);
thumbnailList.setDropMode(DropMode.INSERT);