205 lines
7.0 KiB
Python
205 lines
7.0 KiB
Python
"""Support for KNX/IP lights."""
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from xknx.devices import Light as XknxLight
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from homeassistant.components.light import (
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ATTR_BRIGHTNESS,
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ATTR_COLOR_TEMP,
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ATTR_HS_COLOR,
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ATTR_WHITE_VALUE,
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SUPPORT_BRIGHTNESS,
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SUPPORT_COLOR,
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SUPPORT_COLOR_TEMP,
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SUPPORT_WHITE_VALUE,
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LightEntity,
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)
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import homeassistant.util.color as color_util
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from .const import DOMAIN
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from .knx_entity import KnxEntity
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DEFAULT_COLOR = (0.0, 0.0)
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DEFAULT_BRIGHTNESS = 255
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DEFAULT_WHITE_VALUE = 255
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async def async_setup_platform(hass, config, async_add_entities, discovery_info=None):
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"""Set up lights for KNX platform."""
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entities = []
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for device in hass.data[DOMAIN].xknx.devices:
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if isinstance(device, XknxLight):
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entities.append(KNXLight(device))
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async_add_entities(entities)
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class KNXLight(KnxEntity, LightEntity):
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"""Representation of a KNX light."""
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def __init__(self, device: XknxLight):
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"""Initialize of KNX light."""
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super().__init__(device)
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self._min_kelvin = device.min_kelvin
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self._max_kelvin = device.max_kelvin
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self._min_mireds = color_util.color_temperature_kelvin_to_mired(
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self._max_kelvin
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)
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self._max_mireds = color_util.color_temperature_kelvin_to_mired(
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self._min_kelvin
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)
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@property
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def brightness(self):
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"""Return the brightness of this light between 0..255."""
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if self._device.supports_brightness:
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return self._device.current_brightness
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hsv_color = self._hsv_color
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if self._device.supports_color and hsv_color:
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return round(hsv_color[-1] / 100 * 255)
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return None
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@property
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def hs_color(self):
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"""Return the HS color value."""
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rgb = None
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if self._device.supports_rgbw or self._device.supports_color:
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rgb, _ = self._device.current_color
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return color_util.color_RGB_to_hs(*rgb) if rgb else None
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@property
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def _hsv_color(self):
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"""Return the HSV color value."""
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rgb = None
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if self._device.supports_rgbw or self._device.supports_color:
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rgb, _ = self._device.current_color
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return color_util.color_RGB_to_hsv(*rgb) if rgb else None
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@property
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def white_value(self):
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"""Return the white value."""
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white = None
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if self._device.supports_rgbw:
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_, white = self._device.current_color
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return white
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@property
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def color_temp(self):
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"""Return the color temperature in mireds."""
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if self._device.supports_color_temperature:
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kelvin = self._device.current_color_temperature
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if kelvin is not None:
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return color_util.color_temperature_kelvin_to_mired(kelvin)
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if self._device.supports_tunable_white:
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relative_ct = self._device.current_tunable_white
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if relative_ct is not None:
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# as KNX devices typically use Kelvin we use it as base for
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# calculating ct from percent
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return color_util.color_temperature_kelvin_to_mired(
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self._min_kelvin
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+ ((relative_ct / 255) * (self._max_kelvin - self._min_kelvin))
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)
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return None
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@property
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def min_mireds(self):
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"""Return the coldest color temp this light supports in mireds."""
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return self._min_mireds
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@property
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def max_mireds(self):
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"""Return the warmest color temp this light supports in mireds."""
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return self._max_mireds
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@property
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def effect_list(self):
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"""Return the list of supported effects."""
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return None
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@property
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def effect(self):
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"""Return the current effect."""
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return None
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@property
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def is_on(self):
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"""Return true if light is on."""
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return self._device.state
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@property
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def supported_features(self):
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"""Flag supported features."""
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flags = 0
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if self._device.supports_brightness:
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flags |= SUPPORT_BRIGHTNESS
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if self._device.supports_color:
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flags |= SUPPORT_COLOR | SUPPORT_BRIGHTNESS
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if self._device.supports_rgbw:
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flags |= SUPPORT_COLOR | SUPPORT_WHITE_VALUE
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if (
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self._device.supports_color_temperature
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or self._device.supports_tunable_white
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):
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flags |= SUPPORT_COLOR_TEMP
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return flags
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async def async_turn_on(self, **kwargs):
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"""Turn the light on."""
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brightness = kwargs.get(ATTR_BRIGHTNESS, self.brightness)
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hs_color = kwargs.get(ATTR_HS_COLOR, self.hs_color)
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white_value = kwargs.get(ATTR_WHITE_VALUE, self.white_value)
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mireds = kwargs.get(ATTR_COLOR_TEMP, self.color_temp)
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update_brightness = ATTR_BRIGHTNESS in kwargs
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update_color = ATTR_HS_COLOR in kwargs
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update_white_value = ATTR_WHITE_VALUE in kwargs
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update_color_temp = ATTR_COLOR_TEMP in kwargs
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# avoid conflicting changes and weird effects
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if not (
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self.is_on
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or update_brightness
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or update_color
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or update_white_value
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or update_color_temp
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):
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await self._device.set_on()
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if self._device.supports_brightness and (
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update_brightness and not update_color
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):
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# if we don't need to update the color, try updating brightness
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# directly if supported; don't do it if color also has to be
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# changed, as RGB color implicitly sets the brightness as well
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await self._device.set_brightness(brightness)
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elif (self._device.supports_rgbw or self._device.supports_color) and (
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update_brightness or update_color or update_white_value
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):
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# change RGB color, white value (if supported), and brightness
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# if brightness or hs_color was not yet set use the default value
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# to calculate RGB from as a fallback
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if brightness is None:
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brightness = DEFAULT_BRIGHTNESS
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if hs_color is None:
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hs_color = DEFAULT_COLOR
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if white_value is None and self._device.supports_rgbw:
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white_value = DEFAULT_WHITE_VALUE
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rgb = color_util.color_hsv_to_RGB(*hs_color, brightness * 100 / 255)
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await self._device.set_color(rgb, white_value)
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if update_color_temp:
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kelvin = int(color_util.color_temperature_mired_to_kelvin(mireds))
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kelvin = min(self._max_kelvin, max(self._min_kelvin, kelvin))
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if self._device.supports_color_temperature:
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await self._device.set_color_temperature(kelvin)
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elif self._device.supports_tunable_white:
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relative_ct = int(
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255
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* (kelvin - self._min_kelvin)
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/ (self._max_kelvin - self._min_kelvin)
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)
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await self._device.set_tunable_white(relative_ct)
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async def async_turn_off(self, **kwargs):
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"""Turn the light off."""
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await self._device.set_off()
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