LNTextEdit.py 文件源码

def __init__(self, *args):
        QtWidgets.QFrame.__init__(self, *args)

        self.setFrameStyle(QtWidgets.QFrame.StyledPanel | QtWidgets.QFrame.Sunken)

        self.edit = self.PlainTextEdit()
        self.number_bar = self.NumberBar(self.edit)

        hbox = QtWidgets.QHBoxLayout(self)
        hbox.setSpacing(0)
        hbox.setContentsMargins(0,0,0,0) # setMargin
        hbox.addWidget(self.number_bar)
        hbox.addWidget(self.edit)

        self.edit.blockCountChanged.connect(self.number_bar.adjustWidth)
        self.edit.updateRequest.connect(self.number_bar.updateContents)