def get_text_edit_row_height(editor: QtWidgets.QPlainTextEdit,
rows: int) -> int:
metrics = QtGui.QFontMetrics(editor.document().defaultFont())
margins = editor.contentsMargins()
return (metrics.lineSpacing() * rows +
(editor.document().documentMargin() + editor.frameWidth()) * 2 +
margins.top() + margins.bottom() + 1)
