def updateColor(self, color):
"""Sets the top right color of the panel."""
color = QColor(color)
color.setAlpha(255)
self._color = color
self._image = QImage(self.size(), QImage.Format_ARGB32)
painter = SmoothPainter(self._image)
# Render top right corner
# Choose brightest, most saturated color for the given hue. Undefined hues (greys) should default to red hue.
h = max(0, color.hsvHue())
color_full = QColor.fromHsv(h, 255, 255)
painter.fillRect(self.rect(), color_full)
# Create vertical shading
gradient = QLinearGradient(0, 0, self.width(), 0)
gradient.setColorAt(0, Qt.white)
gradient.setColorAt(1, QColor.fromHslF(0.055, 0.42, 0.65, 0))
painter.fillRect(self.rect(), gradient)
# Create horizontal shading
gradient = QLinearGradient(0, self.height(), 0, 0)
gradient.setColorAt(1, QColor.fromHslF(0.055, 0.42, 0.65, 0))
gradient.setColorAt(0, Qt.black)
painter.fillRect(self.rect(), gradient)
self._createSkinToneIndicator(painter)
painter.end()
w, h = self.width(), self.height()
_, s, v, _ = color.getHsvF()
x, y = s * w, (1 - v) * h
self._pointerPos = QPoint(x, y)
self.update()
