def paintEvent(self, event):
painter = QPainter(self)
painter.save()
path = QPainterPath()
painter.setFont(self.font)
painter.setRenderHint(QPainter.Antialiasing)
pen = QPen(QColor(0, 0, 0, 230))
pen_width = 3
pen.setWidth(pen_width)
len = self.metrics.width(self.txt)
w = self.width()
px = (len - w) / 2
if px < 0:
px = -px
py = (self.height() - self.metrics.height()) / 2 + self.metrics.ascent()
if py < 0:
py = -py
path.addText(px + 2, py + 2, self.font, self.txt)
painter.strokePath(path, pen)
painter.drawPath(path)
painter.fillPath(path, QBrush(self.color))
painter.restore()
def paint(
self,
painter: QtGui.QPainter,
option: QtWidgets.QStyleOptionGraphicsItem,
widget: QtWidgets.QWidget = None,
):
view = self.scene().views()[0]
view_width = view.mapToScene(0, 0, self.width,
1).boundingRect().width()
width, unit = self.getWidthAndUnit(view_width)
# Current scale
text = f"{width * self.units[self.unit] / self.units[unit]:.3g} {unit}"
width = width * view.transform().m11()
fm = QtGui.QFontMetrics(self.font, painter.device())
path = QtGui.QPainterPath()
path.addText(
self.width / 2.0 - fm.boundingRect(text).width() / 2.0,
fm.ascent(),
self.font,
text,
)
painter.strokePath(path, QtGui.QPen(QtCore.Qt.black, 2.0))
painter.fillPath(path, QtGui.QBrush(self.color,
QtCore.Qt.SolidPattern))
# Draw the bar
rect = QtCore.QRectF(self.width / 2.0 - width / 2.0, fm.height(),
width, self.height)
painter.setPen(QtGui.QPen(QtCore.Qt.black, 1.0))
painter.setBrush(QtGui.QBrush(self.color, QtCore.Qt.SolidPattern))
painter.drawRect(rect)
def drawText(self, painter: QPainter) -> None:
painter.save()
painter.setPen(Qt.NoPen)
font: QFont = QFont()
font.setBold(True)
font.setPointSize(10)
painter.setFont(font)
now: QDateTime = QDateTime.currentDateTime()
fm: QFontMetricsF = QFontMetricsF(font)
textList: List[AnyStr] = [
now.toString("MM月dd日yyyy"),
now.toString("hh:mm:ss.zzz")
]
# 绘制文本路径
textPath: QPainterPath = QPainterPath()
textPath.addText(-fm.width(textList[0]) / 2.0, -fm.lineSpacing() / 2.0,
font, textList[0])
textPath.addText(-fm.width(textList[1]) / 2.0,
fm.lineSpacing() / 2.0, font, textList[1])
strokeColor: QColor = self.__textColor.light(80)
strokeColor.setAlphaF(0.2)
painter.strokePath(
textPath,
QPen(strokeColor, self.__shadowWidth, Qt.SolidLine, Qt.RoundCap,
Qt.RoundJoin))
painter.setBrush(self.__textColor)
painter.drawPath(textPath)
painter.restore()
def paint(
self,
painter: QtGui.QPainter,
option: QtWidgets.QStyleOptionGraphicsItem,
widget: QtWidgets.QWidget = None,
):
fm = QtGui.QFontMetrics(self.font, painter.device())
path = QtGui.QPainterPath()
path.addText(0, fm.ascent(), self.font, self.text())
painter.strokePath(path, QtGui.QPen(QtCore.Qt.black, 2.0))
painter.fillPath(path, QtGui.QBrush(self.color,
QtCore.Qt.SolidPattern))
def paint(
self,
painter: QtGui.QPainter,
option: QtWidgets.QStyleOptionGraphicsItem,
widget: QtWidgets.QWidget = None,
):
width = painter.viewport().width()
fm = QtGui.QFontMetrics(self.font, painter.device())
rect = QtCore.QRect(0, fm.height(), width, self.height)
painter.drawPixmap(rect, self.pixmap)
painter.setPen(QtGui.QPen(QtCore.Qt.black, 2.0))
painter.setBrush(QtGui.QBrush(QtCore.Qt.white, QtCore.Qt.NoBrush))
painter.drawRect(rect)
path = QtGui.QPainterPath()
# Todo: find a better pad value
path.addText(
width - fm.boundingRect(self.unit).width() - 10,
fm.ascent(),
self.font,
self.unit,
)
vrange = self.vmax - self.vmin
if vrange <= 0.0:
return
for value in self.niceTextValues(7, trim=1):
x = width * (value - self.vmin) / vrange
text = f"{value:.6g}"
path.addText(
x - fm.boundingRect(text).width() / 2.0,
fm.ascent(),
self.font,
text,
)
if self.checkmarks:
path.addRect(
x - fm.lineWidth() / 2.0,
fm.ascent() + fm.underlinePos(),
fm.lineWidth() * 2.0,
fm.underlinePos(),
)
painter.strokePath(path, QtGui.QPen(QtCore.Qt.black, 2.0))
painter.fillPath(path, QtGui.QBrush(self.color,
QtCore.Qt.SolidPattern))
def paint(
self,
painter: QtGui.QPainter,
option: QtWidgets.QStyleOptionGraphicsItem,
widget: QtWidgets.QWidget = None,
):
fm = QtGui.QFontMetrics(self.font, painter.device())
y = fm.ascent()
for text, color in zip(self._texts, self.colors):
path = QtGui.QPainterPath()
path.addText(0, y, self.font, text)
painter.strokePath(path, QtGui.QPen(QtCore.Qt.black, 2.0))
painter.fillPath(path, QtGui.QBrush(color, QtCore.Qt.SolidPattern))
y += fm.height()