def highligting(self, color, underline_width):
		color = QColor(color)
		color = QColor(color.red(), color.green(), color.blue(), 200)
		painter = QPainter(self)

		if config.hover_underline:
			font_metrics = QFontMetrics(self.font())
			text_width = font_metrics.width(self.word)
			text_height = font_metrics.height()

			brush = QBrush(color)
			pen = QPen(brush, underline_width, Qt.SolidLine, Qt.RoundCap)
			painter.setPen(pen)
			if not self.skip:
				painter.drawLine(0, text_height - underline_width, text_width, text_height - underline_width)

		if config.hover_hightlight:
			x = y = 0
			y += self.fontMetrics().ascent()

			painter.setPen(color)
			painter.drawText(x, y + config.outline_top_padding - config.outline_bottom_padding, self.word) 

def text_mousePressEvent(self, e):
        if e.button() == Qt.LeftButton and self.current_pos is None:
            self.current_pos = e.pos()
            self.current_text = ""
            self.timer_event = self.text_timerEvent

        elif e.button() == Qt.LeftButton:

            self.timer_cleanup()
            # Draw the text to the image
            p = QPainter(self.pixmap())
            p.setRenderHints(QPainter.Antialiasing)
            font = build_font(self.config)
            p.setFont(font)
            pen = QPen(self.primary_color, 1, Qt.SolidLine, Qt.RoundCap, Qt.RoundJoin)
            p.setPen(pen)
            p.drawText(self.current_pos, self.current_text)
            self.update()

            self.reset_mode()

        elif e.button() == Qt.RightButton and self.current_pos:
            self.reset_mode() 

def generic_shape_mouseReleaseEvent(self, e):
        if self.last_pos:
            # Clear up indicator.
            self.timer_cleanup()

            p = QPainter(self.pixmap())
            p.setPen(QPen(self.primary_color, self.config['size'], Qt.SolidLine, Qt.SquareCap, Qt.MiterJoin))

            if self.config['fill']:
                p.setBrush(QBrush(self.secondary_color))
            getattr(p, self.active_shape_fn)(QRect(self.origin_pos, e.pos()), *self.active_shape_args)
            self.update()

        self.reset_mode()

    # Line events 

def paint_drop_indicator(self, painter):
        if self.drag_active:
            opt = QStyleOption()
            opt.initFrom(self)
            opt.rect = self.drop_indicator_rect
            rect = opt.rect

            brush = QBrush(QColor(Qt.darkRed))

            if rect.height() == 0:
                pen = QPen(brush, 2, Qt.SolidLine)
                painter.setPen(pen)
                painter.drawLine(rect.topLeft(), rect.topRight())
            else:
                pen = QPen(brush, 2, Qt.SolidLine)
                painter.setPen(pen)
                painter.drawRect(rect) 

def draw_text_n_outline(self, painter: QPainter, x, y, outline_width, outline_blur, text):
		outline_color = QColor(config.outline_color)

		font = self.font()
		text_path = QPainterPath()
		if config.R2L_from_B:
			text_path.addText(x, y, font, ' ' + r2l(text.strip()) + ' ')
		else:
			text_path.addText(x, y, font, text)

		# draw blur
		range_width = range(outline_width, outline_width + outline_blur)
		# ~range_width = range(outline_width + outline_blur, outline_width, -1)

		for width in range_width:
			if width == min(range_width):
				alpha = 200
			else:
				alpha = (max(range_width) - width) / max(range_width) * 200

			blur_color = QColor(outline_color.red(), outline_color.green(), outline_color.blue(), alpha)
			blur_brush = QBrush(blur_color, Qt.SolidPattern)
			blur_pen = QPen(blur_brush, width, Qt.SolidLine, Qt.RoundCap, Qt.RoundJoin)

			painter.setPen(blur_pen)
			painter.drawPath(text_path)

		# draw outline
		outline_color = QColor(outline_color.red(), outline_color.green(), outline_color.blue(), 255)
		outline_brush = QBrush(outline_color, Qt.SolidPattern)
		outline_pen = QPen(outline_brush, outline_width, Qt.SolidLine, Qt.RoundCap, Qt.RoundJoin)

		painter.setPen(outline_pen)
		painter.drawPath(text_path)

		# draw text
		color = self.palette().color(QPalette.Text)
		painter.setPen(color)
		painter.drawText(x, y, text) 

def eraser_mouseMoveEvent(self, e):
        if self.last_pos:
            p = QPainter(self.pixmap())
            p.setPen(QPen(self.eraser_color, 30, Qt.SolidLine, Qt.RoundCap, Qt.RoundJoin))
            p.drawLine(self.last_pos, e.pos())

            self.last_pos = e.pos()
            self.update() 

def pen_mouseMoveEvent(self, e):
        if self.last_pos:
            p = QPainter(self.pixmap())
            p.setPen(QPen(self.active_color, self.config['size'], Qt.SolidLine, Qt.SquareCap, Qt.RoundJoin))
            p.drawLine(self.last_pos, e.pos())

            self.last_pos = e.pos()
            self.update() 

def brush_mouseMoveEvent(self, e):
        if self.last_pos:
            p = QPainter(self.pixmap())
            p.setPen(QPen(self.active_color, self.config['size'] * BRUSH_MULT, Qt.SolidLine, Qt.RoundCap, Qt.RoundJoin))
            p.drawLine(self.last_pos, e.pos())

            self.last_pos = e.pos()
            self.update() 

def generic_poly_mouseDoubleClickEvent(self, e):
        self.timer_cleanup()
        p = QPainter(self.pixmap())
        p.setPen(QPen(self.primary_color, self.config['size'], Qt.SolidLine, Qt.RoundCap, Qt.RoundJoin))

        # Note the brush is ignored for polylines.
        if self.secondary_color:
            p.setBrush(QBrush(self.secondary_color))

        getattr(p, self.active_shape_fn)(*self.history_pos + [e.pos()])
        self.update()
        self.reset_mode()

    # Polyline events 

def _add_node_to_channel(self ,node=None):
        if not isinstance(node, Node):
            node = self.window.get_current_node()
            if node is None:
                return
        if node not in self._node_list:
            dtype = node.get_attribute(ua.AttributeIds.DataType)

            dtypeStr = ua.ObjectIdNames[dtype.Value.Value.Identifier]



            if dtypeStr in self.acceptedDatatypes and not isinstance(node.get_value() ,list):
                self._node_list.append(node)
                displayName = node.get_display_name().Text
                colorIndex = len(self._node_list) % len(self.colorCycle)
                self._curves.append \
                    (self.pw.plot(pen=pg.mkPen(color=self.colorCycle[colorIndex] ,width=3 ,style=Qt.SolidLine), name=displayName))
                # set initial data to zero
                self._channels.append(np.zeros(self.N)) # init data sequence with zeros
                # add the new channel data to the new curve
                self._curves[-1].setData(self._channels[-1])
                logger.info("Variable %s added to graph", displayName)

            else:
                logger.info("Variable cannot be added to graph because it is of type %s or an array", dtypeStr) 

def __init__(self, *args, antialiasing=True, **kwargs):
        super(Label, self).__init__(*args, **kwargs)
        self.Antialiasing = antialiasing
        self.setMaximumSize(200, 200)
        self.setMinimumSize(200, 200)
        self.radius = 100

        #####################核心实现#########################
        self.target = QPixmap(self.size())  # 大小和控件一样
        self.target.fill(Qt.transparent)  # 填充背景为透明

        p = QPixmap("Data/Images/head.jpg").scaled(  # 加载图片并缩放和控件一样大
            200, 200, Qt.KeepAspectRatioByExpanding, Qt.SmoothTransformation)

        painter = QPainter(self.target)
        if self.Antialiasing:
            # 抗锯齿
            painter.setRenderHint(QPainter.Antialiasing, True)
            painter.setRenderHint(QPainter.HighQualityAntialiasing, True)
            painter.setRenderHint(QPainter.SmoothPixmapTransform, True)

        #         painter.setPen(# 测试圆圈
        #             QPen(Qt.red, 5, Qt.SolidLine, Qt.RoundCap, Qt.RoundJoin))
        path = QPainterPath()
        path.addRoundedRect(
            0, 0, self.width(), self.height(), self.radius, self.radius)
        # **** 切割为圆形 ****#
        painter.setClipPath(path)
        #         painter.drawPath(path)  # 测试圆圈

        painter.drawPixmap(0, 0, p)
        self.setPixmap(self.target)
        #####################核心实现######################### 

def __getPen(self, pen=None, default=QPen(
            Qt.white, 1, Qt.SolidLine,
            Qt.SquareCap, Qt.BevelJoin)):
        '''
        :param pen: pen json
        '''
        if not pen or not isinstance(pen, dict):
            return default
        return QPen(
            self.__getColor(pen.get("color", None) or default.color()),
            pen.get("width", 1) or 1,
            pen.get("style", 0) or 0,
            pen.get("capStyle", 16) or 16,
            pen.get("joinStyle", 64) or 64
        ) 

def paintEvent(self, event):
        painter = QPainter(self)
        painter.setRenderHint(QPainter.Antialiasing)
        # 背景白色
        painter.fillRect(event.rect(), QBrush(Qt.white))
        # 绘制边缘虚线框
        painter.setPen(Qt.DashLine)
        painter.setBrush(Qt.NoBrush)
        painter.drawRect(self.rect())
        # 随机画条线
        for _ in range(3):
            painter.setPen(QPen(QTCOLORLIST[qrand() % 5], 1, Qt.SolidLine))
            painter.setBrush(Qt.NoBrush)
            painter.drawLine(QPoint(0, qrand() % self.height()),
                             QPoint(self.width(), qrand() % self.height()))
            painter.drawLine(QPoint(qrand() % self.width(), 0),
                             QPoint(qrand() % self.width(), self.height()))
        # 绘制噪点
        painter.setPen(Qt.DotLine)
        painter.setBrush(Qt.NoBrush)
        for _ in range(self.width()):  # 绘制噪点
            painter.drawPoint(QPointF(qrand() % self.width(), qrand() % self.height()))
        # super(WidgetCode, self).paintEvent(event)  # 绘制文字
        # 绘制跳动文字
        metrics = QFontMetrics(self.font())
        x = (self.width() - metrics.width(self.text())) / 2
        y = (self.height() + metrics.ascent() - metrics.descent()) / 2
        for i, ch in enumerate(self.text()):
            index = (self.step + i) % 16
            painter.setPen(TCOLORLIST[qrand() % 6])
            painter.drawText(x, y - ((SINETABLE[index] * metrics.height()) / 400), ch)
            x += metrics.width(ch) 

def __init__(self, pos, size, type_, parent = None, scene = None,
                 areaBorder = 2, index = 0, textSize = 50):
        QGraphicsRectItem.__init__(self, 0, 0, size.width(), size.height(),
                                   parent)
        self.setPos(pos)
        self.newEvent = IsClicked()
        self.newEvent.area = self

        #self.setAcceptedMouseButtons(QtCore.Qt.NoButton)
        self.setFlags(QGraphicsItem.ItemIsMovable |
            QGraphicsItem.ItemIsFocusable |
            QGraphicsItem.ItemIsSelectable)

        ## set index label
        self.text = QGraphicsTextItem("%d" % index, self)
        self.setTextSize(textSize)

        ## TODO: How to create constants for the type?
        ## (such as constants in Qt) (enum?)
        self.kind = type_

        pen = QPen(self.color, areaBorder, Qt.SolidLine,
                   Qt.RoundCap, Qt.RoundJoin)
        self.setPen(pen)
        # self.setAcceptsHoverEvents(True)  # TODO

        # self.text.setFlag(QtGui.QGraphicsItem.ItemIgnoresTransformations) 

def paint_pause_indicator(self, painter):
        if self.show_pause_active:
            rect = self.__rect_for_row(self.pause_row)
            brush = QBrush(QColor(Qt.darkGreen))
            pen = QPen(brush, 2, Qt.SolidLine)
            painter.setPen(pen)
            painter.drawLine(rect.topLeft(), rect.topRight()) 

def __init__(self, parent=None):
        super().__init__(parent)
        self.setPen(QPen(Qt.black, 1, Qt.SolidLine, Qt.RoundCap, Qt.RoundJoin)) 

def paint(self, painter: QPainter, option, widget):
        style = Qt.DotLine if self.model_item.has_live_input else Qt.SolidLine
        pen = QPen(settings.LINECOLOR, 1, style)
        painter.setPen(pen)
        painter.setBrush(settings.LABEL_COLORS[self.model_item.color_index])
        painter.drawRect(self.boundingRect())

        if self.scene().mode == 1:
            super().paint(painter, option, widget) 

def paint_drop_indicator(self, painter):
        brush = QBrush(QColor(Qt.darkRed))
        pen = QPen(brush, 2, Qt.SolidLine)
        painter.setPen(pen)
        rect = self.boundingRect()

        if self.drop_indicator_position == QAbstractItemView.AboveItem:
            painter.drawLine(QLineF(rect.topLeft(), rect.topRight()))
        else:
            painter.drawLine(QLineF(rect.bottomLeft(), rect.bottomRight())) 

def refresh(self):
        self.text.setPlainText("?" if not self.model_item else self.model_item.shortname)
        if hasattr(self.model_item, "simulate") and self.model_item.simulate:
            font = QFont()
            font.setBold(True)
            self.text.setFont(font)
            self.text.setDefaultTextColor(Qt.darkGreen)
            self.line.setPen(QPen(Qt.darkGreen, 2, Qt.SolidLine, Qt.RoundCap, Qt.RoundJoin))
        else:
            self.text.setFont(QFont())
            self.text.setDefaultTextColor(settings.LINECOLOR)
            self.line.setPen(QPen(Qt.darkGray, 1, Qt.DashLine, Qt.RoundCap, Qt.RoundJoin)) 

def mouseMoveEvent(self, event):
        if event.buttons() & Qt.LeftButton:
            # painter.setPen(QPen(self.brushColor,
            # self.brushSize, Qt.SolidLine, Qt.RoundCap,Qt.RoundJoin))
            # painter.drawLine(
            # self.label.mapFromParent(event.pos()),self.last_found_point)
            self.last_found_point = self.label.mapFromParent(
                event.pos())  # this is working fine now
            print(self.last_found_point, "MOVE")
            fixed_pos[0] = int(event.pos().x())
            fixed_pos[1] = int(event.pos().y())
            # self.label.setPixmap(QPixmap.fromImage(self.image)) 

def paint(self, painter: QPainter, option: QStyleOptionViewItem, index: QModelIndex) -> None:
        r = option.rect
        pencolor = Qt.white if self.theme == 'dark' else Qt.black
        if self.parent.isEnabled():
            if option.state & QStyle.State_Selected:
                painter.setBrush(QColor(150, 190, 78, 150))
            elif option.state & QStyle.State_MouseOver:
                painter.setBrush(QColor(227, 212, 232))
                pencolor = Qt.black
            else:
                brushcolor = QColor(79, 85, 87, 175) if self.theme == 'dark' else QColor('#EFF0F1')
                painter.setBrush(Qt.transparent if index.row() % 2 == 0 else brushcolor)
        painter.setPen(Qt.NoPen)
        painter.drawRect(r)
        thumbicon = QIcon(index.data(Qt.DecorationRole + 1))
        starttime = index.data(Qt.DisplayRole + 1)
        endtime = index.data(Qt.UserRole + 1)
        externalPath = index.data(Qt.UserRole + 2)
        chapterName = index.data(Qt.UserRole + 3)
        painter.setPen(QPen(pencolor, 1, Qt.SolidLine))
        if len(chapterName):
            offset = 20
            r = option.rect.adjusted(5, 5, 0, 0)
            cfont = QFont('Futura LT', -1, QFont.Medium)
            cfont.setPointSizeF(12.25 if sys.platform == 'darwin' else 10.25)
            painter.setFont(cfont)
            painter.drawText(r, Qt.AlignLeft, self.clipText(chapterName, painter, True))
            r = option.rect.adjusted(5, offset, 0, 0)
        else:
            offset = 0
            r = option.rect.adjusted(5, 0, 0, 0)
        thumbicon.paint(painter, r, Qt.AlignVCenter | Qt.AlignLeft)
        r = option.rect.adjusted(110, 10 + offset, 0, 0)
        painter.setFont(QFont('Noto Sans', 11 if sys.platform == 'darwin' else 9, QFont.Bold))
        painter.drawText(r, Qt.AlignLeft, 'FILENAME' if len(externalPath) else 'START')
        r = option.rect.adjusted(110, 23 + offset, 0, 0)
        painter.setFont(QFont('Noto Sans', 11 if sys.platform == 'darwin' else 9, QFont.Normal))
        if len(externalPath):
            painter.drawText(r, Qt.AlignLeft, self.clipText(os.path.basename(externalPath), painter))
        else:
            painter.drawText(r, Qt.AlignLeft, starttime)
        if len(endtime) > 0:
            r = option.rect.adjusted(110, 48 + offset, 0, 0)
            painter.setFont(QFont('Noto Sans', 11 if sys.platform == 'darwin' else 9, QFont.Bold))
            painter.drawText(r, Qt.AlignLeft, 'RUNTIME' if len(externalPath) else 'END')
            r = option.rect.adjusted(110, 60 + offset, 0, 0)
            painter.setFont(QFont('Noto Sans', 11 if sys.platform == 'darwin' else 9, QFont.Normal))
            painter.drawText(r, Qt.AlignLeft, endtime) 

def drawWidget(self, qp):

        MAX_CAPACITY = 700
        OVER_CAPACITY = 750

        font = QFont('Serif', 7, QFont.Light)
        qp.setFont(font)

        size = self.size()
        w = size.width()
        h = size.height()

        step = int(round(w / 10))


        till = int(((w / OVER_CAPACITY) * self.value))
        full = int(((w / OVER_CAPACITY) * MAX_CAPACITY))

        if self.value >= MAX_CAPACITY:

            qp.setPen(QColor(255, 255, 255))
            qp.setBrush(QColor(255, 255, 184))
            qp.drawRect(0, 0, full, h)
            qp.setPen(QColor(255, 175, 175))
            qp.setBrush(QColor(255, 175, 175))
            qp.drawRect(full, 0, till-full, h)

        else:

            qp.setPen(QColor(255, 255, 255))
            qp.setBrush(QColor(255, 255, 184))
            qp.drawRect(0, 0, till, h)


        pen = QPen(QColor(20, 20, 20), 1, 
            Qt.SolidLine)

        qp.setPen(pen)
        qp.setBrush(Qt.NoBrush)
        qp.drawRect(0, 0, w-1, h-1)

        j = 0

        for i in range(step, 10*step, step):

            qp.drawLine(i, 0, i, 5)
            metrics = qp.fontMetrics()
            fw = metrics.width(str(self.num[j]))
            qp.drawText(i-fw/2, h/2, str(self.num[j]))
            j = j + 1