def paintEvent(self, e):
height = self.height()
width = self.width()
# draw background
painter = QPainter(self)
painter.setRenderHint(QPainter.Antialiasing)
painter.setPen(Qt.transparent)
painter.setBrush(BACKGROUND)
painter.setOpacity(1)
path = QPainterPath()
path.setFillRule(Qt.WindingFill)
path.addRoundedRect(QRectF(8, 0, width - 8, height), 15, 15)
painter.drawPath(path.simplified())
# draw sidebar
painter.setBrush(SIDEBAR)
painter.setOpacity(1)
path = QPainterPath()
path.setFillRule(Qt.WindingFill)
# we draw a fixed-width toolbar background
path.addRoundedRect(QRectF(8, 0, 250 - 8, height), 15, 15)
path.addRect(QRectF(200, 0, 50, 50))
path.addRect(QRectF(200, height - 50, 50, 50))
painter.drawPath(path.simplified())
def drawValue(self, p: QPainter, baseRect: QRectF, value: float, delta: float):
if value == self.m_min:
return
if self.m_barStyle == self.BarStyle.EXPAND:
p.setBrush(self.palette().highlight())
p.setPen(QPen(self.palette().shadow().color(), self.m_dataPenWidth))
radius = (baseRect.height() / 2) / delta
p.drawEllipse(baseRect.center(), radius, radius)
return
if self.m_barStyle == self.BarStyle.LINE:
p.setPen(QPen(self.palette().highlight().color(), self.m_dataPenWidth))
p.setBrush(Qt.NoBrush)
if value == self.m_max:
p.drawEllipse(baseRect.adjusted(self.m_outlinePenWidth / 2, self.m_outlinePenWidth / 2,
-self.m_outlinePenWidth / 2, -self.m_outlinePenWidth / 2))
else:
arcLength = 360 / delta
p.drawArc(baseRect.adjusted(self.m_outlinePenWidth / 2, self.m_outlinePenWidth / 2,
-self.m_outlinePenWidth / 2, -self.m_outlinePenWidth / 2),
int(self.m_nullPosition * 16),
int(-arcLength * 16))
return
dataPath = QPainterPath()
dataPath.setFillRule(Qt.WindingFill)
if value == self.m_max:
dataPath.addEllipse(baseRect)
else:
arcLength = 360 / delta
dataPath.moveTo(baseRect.center())
dataPath.arcTo(baseRect, self.m_nullPosition, -arcLength)
dataPath.lineTo(baseRect.center())
p.setBrush(self.palette().highlight())
p.setPen(QPen(self.palette().shadow().color(), self.m_dataPenWidth))
p.drawPath(dataPath)