def __init__(self, parent):
super(HueSliderWidget, self).__init__(parent)
self.setFixedSize(parent.width(), parent.height())
self.value = 0
size = 100
self.colorImage = QtGui.QImage(1, size, QtGui.QImage.Format_RGB32)
c = QColor()
for y in range(0, size):
k = y / float(size)
c.setHsvF(k, 1.0, 1.0)
self.colorImage.setPixel(0, y, c.rgb())
self.setCursor(Qt.PointingHandCursor)
def __init__(self, parent):
super(AlphaSliderWidget, self).__init__(parent)
self.setFixedSize(parent.width(), parent.height())
self.setCursor(Qt.PointingHandCursor)
self.value = 0
size = 100
self.colorImage = QtGui.QImage(size, 1, QtGui.QImage.Format_RGB32)
c = QColor()
for x in range(0, size):
k = x / float(size)
c.setHsvF(1.0, 0.0, k)
self.colorImage.setPixel(x, 0, c.rgb())
def generateHSVImage(w, h, hue, img=None):
if not img:
img = QtGui.QImage(w, h, QtGui.QImage.Format_RGB32)
du = 1.0 / w
dv = 1.0 / h
c = QColor()
for y in range(0, h):
for x in range(0, w):
s = du * x
v = 1.0 - dv * y
c.setHsvF(hue, s, v)
img.setPixel(x, y, c.rgb())
return img
