search.py 文件源码

def _get_selection_from_widget(widget):
    if isinstance(widget, QtWidgets.QPlainTextEdit):
        cursor = widget.textCursor()
        return (cursor.selectionStart(), cursor.selectionEnd())
    elif isinstance(widget, QtWidgets.QLineEdit):
        return (
            widget.selectionStart(),
            widget.selectionStart() + len(widget.selectedText()))
    else:
        assert False, 'Unknown widget type'