def transition(self, duration, color=None, brightness=None):
""" Transition wrapper.
Short-circuit transition as necessary.
:param duration: Time to transition.
:param color: Transition to this color.
:param brightness: Transition to this brightness.
"""
# Transition to white immediately.
if color == RGB_WHITE:
self.white()
color = None
# Transition away from white immediately.
elif self.color == RGB_WHITE and color is not None:
self.color = color
color = None
# Transition immediately if duration is zero.
if duration == 0:
if color:
self.color = color
if brightness is not None:
self.brightness = brightness
return
# Perform transition
if color != self.color or brightness != self.brightness:
if color is None and brightness == self.brightness:
return
if color is None:
self._transition(duration, brightness=brightness)
else:
self._transition(duration, hue_of_color(color), brightness)
def color(self, color):
""" Set group color.
Color is set on a best-effort basis.
:param color: RGB color tuple.
"""
self._color = color
self.saturation = saturation_of_color(color)
if self.saturation != 0:
self.hue = hue_of_color(color)
def color(self, color):
""" Set group color.
Color is set on a best-effort basis.
:param color: RGB color tuple.
"""
if saturation_of_color(color) == 0:
self.white()
return
self._color = color
self.hue = hue_of_color(color)
def transition(self,
duration,
color=None,
brightness=None,
temperature=None):
""" Transition wrapper.
Short-circuit transition as necessary.
:param duration: Time to transition.
:param color: Transition to this color.
:param brightness: Transition to this brightness.
:param temperature: Transition to this temperature.
"""
if color and temperature is not None:
raise ValueError("Cannot transition to color and temperature "
"simultaneously.")
# Transition to white immediately.
if color == RGB_WHITE:
self.white()
# Transition away from white immediately.
elif self.color == RGB_WHITE and color is not None:
self.color = color
# Transition immediately if duration is zero.
if duration == 0:
if color:
self.color = color
if brightness is not None:
self.brightness = brightness
if temperature is not None:
self.temperature = temperature
return
# Perform transition
if color and color != self.color:
self._transition(duration,
brightness,
hue=hue_of_color(color),
saturation=saturation_of_color(color))
elif temperature != self.temperature:
self._transition(duration, brightness, temperature=temperature)
elif brightness != self.brightness:
self._transition(duration, brightness)
def test_hue_of_color(self):
red = Color(255, 0, 0)
self.assertEqual(util.hue_of_color(red), 0.0)
