search.py 文件源码

def _select_text_on_widget(widget, selection_start, selection_end):
    if isinstance(widget, QtWidgets.QPlainTextEdit):
        cursor = widget.textCursor()
        cursor.setPosition(selection_start)
        cursor.setPosition(selection_end, QtGui.QTextCursor.KeepAnchor)
        widget.setTextCursor(cursor)
    elif isinstance(widget, QtWidgets.QLineEdit):
        widget.setSelection(selection_start, selection_end - selection_start)
    else:
        assert False, 'Unknown widget type'
    widget.setFocus()