def onFileAvaiable(self, rFile: QtCore.QFile) -> None: size = None pic = QtGui.QPixmap(rFile.getFileName()) size = pic.width(), pic.height() self.resourceMapCache[rFile.dlKey] = { "filename": rFile.getFileName(), "size": size } self.document().markContentsDirty(0, len(self.document().toPlainText()))