mirror of
https://github.com/home-assistant/core
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82 lines
2.6 KiB
Python
82 lines
2.6 KiB
Python
"""Support for Lutron lights."""
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import logging
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from homeassistant.components.light import ATTR_BRIGHTNESS, SUPPORT_BRIGHTNESS, Light
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from . import LUTRON_CONTROLLER, LUTRON_DEVICES, LutronDevice
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_LOGGER = logging.getLogger(__name__)
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def setup_platform(hass, config, add_entities, discovery_info=None):
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"""Set up the Lutron lights."""
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devs = []
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for (area_name, device) in hass.data[LUTRON_DEVICES]["light"]:
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dev = LutronLight(area_name, device, hass.data[LUTRON_CONTROLLER])
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devs.append(dev)
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add_entities(devs, True)
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def to_lutron_level(level):
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"""Convert the given Home Assistant light level (0-255) to Lutron (0.0-100.0)."""
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return float((level * 100) / 255)
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def to_hass_level(level):
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"""Convert the given Lutron (0.0-100.0) light level to Home Assistant (0-255)."""
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return int((level * 255) / 100)
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class LutronLight(LutronDevice, Light):
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"""Representation of a Lutron Light, including dimmable."""
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def __init__(self, area_name, lutron_device, controller):
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"""Initialize the light."""
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self._prev_brightness = None
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super().__init__(area_name, lutron_device, controller)
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@property
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def supported_features(self):
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"""Flag supported features."""
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return SUPPORT_BRIGHTNESS
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@property
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def brightness(self):
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"""Return the brightness of the light."""
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new_brightness = to_hass_level(self._lutron_device.last_level())
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if new_brightness != 0:
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self._prev_brightness = new_brightness
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return new_brightness
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def turn_on(self, **kwargs):
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"""Turn the light on."""
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if ATTR_BRIGHTNESS in kwargs and self._lutron_device.is_dimmable:
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brightness = kwargs[ATTR_BRIGHTNESS]
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elif self._prev_brightness == 0:
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brightness = 255 / 2
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else:
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brightness = self._prev_brightness
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self._prev_brightness = brightness
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self._lutron_device.level = to_lutron_level(brightness)
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def turn_off(self, **kwargs):
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"""Turn the light off."""
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self._lutron_device.level = 0
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@property
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def device_state_attributes(self):
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"""Return the state attributes."""
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attr = {"lutron_integration_id": self._lutron_device.id}
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return attr
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@property
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def is_on(self):
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"""Return true if device is on."""
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return self._lutron_device.last_level() > 0
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def update(self):
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"""Call when forcing a refresh of the device."""
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if self._prev_brightness is None:
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self._prev_brightness = to_hass_level(self._lutron_device.level)
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