def rebuildDataBrushIfNeeded(self):
if not self.m_rebuildBrush or not self.m_gradientData:
return
self.m_rebuildBrush = False
p = self.palette()
dataBrush = QConicalGradient(QPointF(0.5, 0.5), self.m_nullPosition)
dataBrush.setCoordinateMode(QGradient.StretchToDeviceMode)
for i in range(0, len(self.m_gradientData)):
dataBrush.setColorAt(1 - self.m_gradientData[i][0],
self.m_gradientData[i][1])
p.setBrush(QPalette.Highlight, dataBrush)
self.setPalette(p)
def paintEvent(self, event):
painter = QPainter(self)
painter.setRenderHint(painter.Antialiasing)
tamanio = self.geometry().size()
nuevoRect = QtCore.QRect(math.floor(self.anchoLinea / 2), math.floor(self.anchoLinea / 2), tamanio.width() - self.anchoLinea, tamanio.height() - self.anchoLinea)
verde = QColor()
verde.setNamedColor("#00FF00")
amarillo = QColor()
amarillo.setNamedColor("#FFFF00")
rojo = QColor()
rojo.setNamedColor("#FF0000")
gradiente = QConicalGradient()
gradiente.setCoordinateMode(QGradient.ObjectBoundingMode)
gradiente.setAngle(60)
gradiente.setColorAt(0, rojo)
gradiente.setColorAt(0.25, amarillo)
gradiente.setColorAt(0.50, verde)
colorSeleccionado = QColor()
colorSeleccionado.setNamedColor(self.colorDial)
lapizTrazo = QPen()
lapizTrazo.setStyle(QtCore.Qt.SolidLine)
lapizTrazo.setWidth(self.anchoLinea)
lapizTrazo.setBrush(colorSeleccionado)
porcentaje = self.valor / float(self.maxValor - self.minValor)
span = math.floor((self.finishAngle - self.startAngle) * porcentaje)
painter.setPen(lapizTrazo)
painter.drawArc(nuevoRect, self.startAngle * 16, span * 16)
super(BKGauge, self).paintEvent(event)
