This class represents the communication layer between the front-end MQTT layer and the hardware output layer. More...

#include <light_state.h>

Inheritance diagram for esphome::light::LightState:

Public Member Functions
	LightState (LightOutput *output)

LightTraits	get_traits ()

LightCall	turn_on ()
	Make a light state call. More...

LightCall	turn_off ()

LightCall	toggle ()

LightCall	make_call ()

void	setup () override
	Load state from preferences. More...

void	dump_config () override

void	loop () override

float	get_setup_priority () const override
	Shortly after HARDWARE. More...

void	publish_state ()
	Publish the currently active state to the frontend. More...

LightOutput *	get_output () const
	Get the light output associated with this object. More...

std::string	get_effect_name ()
	Return the name of the current effect, or if no effect is active "None". More...

void	add_new_remote_values_callback (std::function< void()> &&send_callback)
	This lets front-end components subscribe to light change events. More...

void	add_new_target_state_reached_callback (std::function< void()> &&send_callback)
	The callback is called once the state of current_values and remote_values are equal (when the transition is finished). More...

void	set_default_transition_length (uint32_t default_transition_length)
	Set the default transition length, i.e. the transition length when no transition is provided. More...

uint32_t	get_default_transition_length () const

void	set_flash_transition_length (uint32_t flash_transition_length)
	Set the flash transition length. More...

uint32_t	get_flash_transition_length () const

void	set_gamma_correct (float gamma_correct)
	Set the gamma correction factor. More...

float	get_gamma_correct () const

void	set_restore_mode (LightRestoreMode restore_mode)
	Set the restore mode of this light. More...

bool	supports_effects ()
	Return whether the light has any effects that meet the trait requirements. More...

const std::vector< LightEffect * > &	get_effects () const
	Get all effects for this light state. More...

void	add_effects (const std::vector< LightEffect *> &effects)
	Add effects for this light state. More...

void	current_values_as_binary (bool *binary)
	The result of all the current_values_as_* methods have gamma correction applied. More...

void	current_values_as_brightness (float *brightness)

void	current_values_as_rgb (float red, float green, float *blue, bool color_interlock=false)

void	current_values_as_rgbw (float red, float green, float blue, float white, bool color_interlock=false)

void	current_values_as_rgbww (float red, float green, float blue, float cold_white, float *warm_white, bool constant_brightness=false)

void	current_values_as_rgbct (float red, float green, float blue, float color_temperature, float *white_brightness)

void	current_values_as_cwww (float cold_white, float warm_white, bool constant_brightness=false)

void	current_values_as_ct (float color_temperature, float white_brightness)

bool	is_transformer_active ()
	Indicator if a transformer (e.g. More...

Public Member Functions inherited from esphome::EntityBase
const StringRef &	get_name () const

void	set_name (const char *name)

bool	has_own_name () const

std::string	get_object_id () const

void	set_object_id (const char *object_id)

uint32_t	get_object_id_hash ()

bool	is_internal () const

void	set_internal (bool internal)

bool	is_disabled_by_default () const

void	set_disabled_by_default (bool disabled_by_default)

EntityCategory	get_entity_category () const

void	set_entity_category (EntityCategory entity_category)

std::string	get_icon () const

void	set_icon (const char *icon)

Public Member Functions inherited from esphome::Component
float	get_actual_setup_priority () const

void	set_setup_priority (float priority)

virtual float	get_loop_priority () const
	priority of loop(). More...

void	call ()

virtual void	on_shutdown ()

virtual void	on_safe_shutdown ()

uint32_t	get_component_state () const

virtual void	mark_failed ()
	Mark this component as failed. More...

bool	is_failed () const

bool	is_ready () const

virtual bool	can_proceed ()

bool	status_has_warning () const

bool	status_has_error () const

void	status_set_warning (const char *message="unspecified")

void	status_set_error (const char *message="unspecified")

void	status_clear_warning ()

void	status_clear_error ()

void	status_momentary_warning (const std::string &name, uint32_t length=5000)

void	status_momentary_error (const std::string &name, uint32_t length=5000)

bool	has_overridden_loop () const

void	set_component_source (const char *source)
	Set where this component was loaded from for some debug messages. More...

const char *	get_component_source () const
	Get the integration where this component was declared as a string. More...

Data Fields
LightColorValues	current_values
	The current values of the light as outputted to the light. More...

LightColorValues	remote_values
	The remote color values reported to the frontend. More...

Protected Member Functions
void	start_effect_ (uint32_t effect_index)
	Internal method to start an effect with the given index. More...

LightEffect *	get_active_effect_ ()
	Internal method to get the currently active effect. More...

void	stop_effect_ ()
	Internal method to stop the current effect (if one is active). More...

void	start_transition_ (const LightColorValues &target, uint32_t length, bool set_remote_values)
	Internal method to start a transition to the target color with the given length. More...

void	start_flash_ (const LightColorValues &target, uint32_t length, bool set_remote_values)
	Internal method to start a flash for the specified amount of time. More...

void	set_immediately_ (const LightColorValues &target, bool set_remote_values)
	Internal method to set the color values to target immediately (with no transition). More...

void	save_remote_values_ ()
	Internal method to save the current remote_values to the preferences. More...

Protected Member Functions inherited from esphome::EntityBase
virtual uint32_t	hash_base ()
	The hash_base() function has been deprecated. More...

void	calc_object_id_ ()

Protected Member Functions inherited from esphome::Component
virtual void	call_loop ()

virtual void	call_setup ()

virtual void	call_dump_config ()

void	set_interval (const std::string &name, uint32_t interval, std::function< void()> &&f)
	Set an interval function with a unique name. More...

void	set_interval (uint32_t interval, std::function< void()> &&f)

bool	cancel_interval (const std::string &name)
	Cancel an interval function. More...

void	set_retry (const std::string &name, uint32_t initial_wait_time, uint8_t max_attempts, std::function< RetryResult(uint8_t)> &&f, float backoff_increase_factor=1.0f)
	Set an retry function with a unique name. More...

void	set_retry (uint32_t initial_wait_time, uint8_t max_attempts, std::function< RetryResult(uint8_t)> &&f, float backoff_increase_factor=1.0f)

bool	cancel_retry (const std::string &name)
	Cancel a retry function. More...

void	set_timeout (const std::string &name, uint32_t timeout, std::function< void()> &&f)
	Set a timeout function with a unique name. More...

void	set_timeout (uint32_t timeout, std::function< void()> &&f)

bool	cancel_timeout (const std::string &name)
	Cancel a timeout function. More...

void	defer (const std::string &name, std::function< void()> &&f)
	Defer a callback to the next loop() call. More...

void	defer (std::function< void()> &&f)
	Defer a callback to the next loop() call. More...

bool	cancel_defer (const std::string &name)
	Cancel a defer callback using the specified name, name must not be empty. More...

Protected Attributes
friend	LightOutput

friend	LightCall

LightOutput *	output_
	Store the output to allow effects to have more access. More...

uint32_t	active_effect_index_ {}
	Value for storing the index of the currently active effect. 0 if no effect is active. More...

std::unique_ptr< LightTransformer >	transformer_ {nullptr}
	The currently active transformer for this light (transition/flash). More...

bool	next_write_ {true}
	Whether the light value should be written in the next cycle. More...

ESPPreferenceObject	rtc_
	Object used to store the persisted values of the light. More...

CallbackManager< void()>	remote_values_callback_ {}
	Callback to call when new values for the frontend are available. More...

CallbackManager< void()>	target_state_reached_callback_ {}
	Callback to call when the state of current_values and remote_values are equal This should be called once the state of current_values changed and equals the state of remote_values. More...

uint32_t	default_transition_length_ {}
	Default transition length for all transitions in ms. More...

uint32_t	flash_transition_length_ {}
	Transition length to use for flash transitions. More...

float	gamma_correct_ {}
	Gamma correction factor for the light. More...

LightRestoreMode	restore_mode_
	Restore mode of the light. More...

std::vector< LightEffect * >	effects_
	List of effects for this light. More...

bool	is_transformer_active_ = false

Protected Attributes inherited from esphome::EntityBase
StringRef	name_

const char *	object_id_c_str_ {nullptr}

const char *	icon_c_str_ {nullptr}

uint32_t	object_id_hash_

bool	has_own_name_ {false}

bool	internal_ {false}

bool	disabled_by_default_ {false}

EntityCategory	entity_category_ {ENTITY_CATEGORY_NONE}

Protected Attributes inherited from esphome::Component
uint32_t	component_state_ {0x0000}
	State of this component. More...

float	setup_priority_override_ {NAN}

const char *	component_source_ {nullptr}

Detailed Description

This class represents the communication layer between the front-end MQTT layer and the hardware output layer.

Definition at line 34 of file light_state.h.

Constructor & Destructor Documentation

◆ LightState()

esphome::light::LightState::LightState ( LightOutput * output )

Definition at line 11 of file light_state.cpp.

Member Function Documentation

◆ add_effects()

void esphome::light::LightState::add_effects ( const std::vector< LightEffect *> & effects )

Add effects for this light state.

Definition at line 180 of file light_state.cpp.

◆ add_new_remote_values_callback()

void esphome::light::LightState::add_new_remote_values_callback ( std::function< void()> && send_callback )

This lets front-end components subscribe to light change events.

This callback is called once when the remote color values are changed.

Parameters

send_callback The callback.

Definition at line 161 of file light_state.cpp.

◆ add_new_target_state_reached_callback()

void esphome::light::LightState::add_new_target_state_reached_callback ( std::function< void()> && send_callback )

The callback is called once the state of current_values and remote_values are equal (when the transition is finished).

Parameters

send_callback

Definition at line 164 of file light_state.cpp.

◆ current_values_as_binary()

void esphome::light::LightState::current_values_as_binary ( bool * binary )

The result of all the current_values_as_* methods have gamma correction applied.

Definition at line 187 of file light_state.cpp.

◆ current_values_as_brightness()

void esphome::light::LightState::current_values_as_brightness ( float * brightness )

Definition at line 188 of file light_state.cpp.

◆ current_values_as_ct()

void esphome::light::LightState::current_values_as_ct	(	float *	color_temperature,
		float *	white_brightness
	)

Definition at line 213 of file light_state.cpp.

◆ current_values_as_cwww()

void esphome::light::LightState::current_values_as_cwww	(	float *	cold_white,
		float *	warm_white,
		bool	constant_brightness = `false`
	)

Definition at line 209 of file light_state.cpp.

◆ current_values_as_rgb()

void esphome::light::LightState::current_values_as_rgb	(	float *	red,
		float *	green,
		float *	blue,
		bool	color_interlock = `false`
	)

Definition at line 191 of file light_state.cpp.

◆ current_values_as_rgbct()

void esphome::light::LightState::current_values_as_rgbct	(	float *	red,
		float *	green,
		float *	blue,
		float *	color_temperature,
		float *	white_brightness
	)

Definition at line 203 of file light_state.cpp.

◆ current_values_as_rgbw()

void esphome::light::LightState::current_values_as_rgbw	(	float *	red,
		float *	green,
		float *	blue,
		float *	white,
		bool	color_interlock = `false`
	)

Definition at line 195 of file light_state.cpp.

◆ current_values_as_rgbww()

void esphome::light::LightState::current_values_as_rgbww	(	float *	red,
		float *	green,
		float *	blue,
		float *	cold_white,
		float *	warm_white,
		bool	constant_brightness = `false`
	)

Definition at line 199 of file light_state.cpp.

◆ dump_config()

void esphome::light::LightState::dump_config ( )

overridevirtual

Reimplemented from esphome::Component.

Definition at line 102 of file light_state.cpp.

◆ get_active_effect_()

LightEffect * esphome::light::LightState::get_active_effect_ ( )

protected

Internal method to get the currently active effect.

Definition at line 230 of file light_state.cpp.

◆ get_default_transition_length()

uint32_t esphome::light::LightState::get_default_transition_length ( ) const

Definition at line 171 of file light_state.cpp.

◆ get_effect_name()

std::string esphome::light::LightState::get_effect_name ( )

Return the name of the current effect, or if no effect is active "None".

Definition at line 153 of file light_state.cpp.

◆ get_effects()

const std::vector< LightEffect * > & esphome::light::LightState::get_effects ( ) const

Get all effects for this light state.

Definition at line 179 of file light_state.cpp.

◆ get_flash_transition_length()

uint32_t esphome::light::LightState::get_flash_transition_length ( ) const

Definition at line 175 of file light_state.cpp.

◆ get_gamma_correct()

float esphome::light::LightState::get_gamma_correct ( ) const

inline

Definition at line 114 of file light_state.h.

◆ get_output()

LightOutput * esphome::light::LightState::get_output ( ) const

Get the light output associated with this object.

Definition at line 152 of file light_state.cpp.

◆ get_setup_priority()

float esphome::light::LightState::get_setup_priority ( ) const

overridevirtual

Shortly after HARDWARE.

Reimplemented from esphome::Component.

Definition at line 148 of file light_state.cpp.

◆ get_traits()

LightTraits esphome::light::LightState::get_traits ( )

Definition at line 13 of file light_state.cpp.

◆ is_transformer_active()

bool esphome::light::LightState::is_transformer_active ( )

Indicator if a transformer (e.g.

transition) is active. This is useful for effects e.g. at the start of the apply() method, add a check like:

if (this->state_->is_transformer_active()) { // Something is already running. return; }

Definition at line 219 of file light_state.cpp.

◆ loop()

void esphome::light::LightState::loop ( )

overridevirtual

Reimplemented from esphome::Component.

Definition at line 113 of file light_state.cpp.

◆ make_call()

LightCall esphome::light::LightState::make_call ( )

Definition at line 17 of file light_state.cpp.

◆ publish_state()

void esphome::light::LightState::publish_state ( )

Publish the currently active state to the frontend.

Definition at line 150 of file light_state.cpp.

◆ save_remote_values_()

void esphome::light::LightState::save_remote_values_ ( )

protected

Internal method to save the current remote_values to the preferences.

Definition at line 280 of file light_state.cpp.

◆ set_default_transition_length()

void esphome::light::LightState::set_default_transition_length ( uint32_t default_transition_length )

Set the default transition length, i.e. the transition length when no transition is provided.

Definition at line 168 of file light_state.cpp.

◆ set_flash_transition_length()

void esphome::light::LightState::set_flash_transition_length ( uint32_t flash_transition_length )

Set the flash transition length.

Definition at line 172 of file light_state.cpp.

◆ set_gamma_correct()

void esphome::light::LightState::set_gamma_correct ( float gamma_correct )

Set the gamma correction factor.

Definition at line 176 of file light_state.cpp.

◆ set_immediately_()

void esphome::light::LightState::set_immediately_	(	const LightColorValues &	target,
		bool	set_remote_values
	)

protected

Internal method to set the color values to target immediately (with no transition).

Definition at line 269 of file light_state.cpp.

◆ set_restore_mode()

void esphome::light::LightState::set_restore_mode ( LightRestoreMode restore_mode )

Set the restore mode of this light.

Definition at line 177 of file light_state.cpp.

◆ setup()

void esphome::light::LightState::setup ( )

overridevirtual

Load state from preferences.

Reimplemented from esphome::Component.

Definition at line 34 of file light_state.cpp.

◆ start_effect_()

void esphome::light::LightState::start_effect_ ( uint32_t effect_index )

protected

Internal method to start an effect with the given index.

Definition at line 221 of file light_state.cpp.

◆ start_flash_()

void esphome::light::LightState::start_flash_	(	const LightColorValues &	target,
		uint32_t	length,
		bool	set_remote_values
	)

protected

Internal method to start a flash for the specified amount of time.

Definition at line 254 of file light_state.cpp.

◆ start_transition_()

void esphome::light::LightState::start_transition_	(	const LightColorValues &	target,
		uint32_t	length,
		bool	set_remote_values
	)

protected

Internal method to start a transition to the target color with the given length.

Definition at line 245 of file light_state.cpp.

◆ stop_effect_()

void esphome::light::LightState::stop_effect_ ( )

protected

Internal method to stop the current effect (if one is active).

Definition at line 237 of file light_state.cpp.

◆ supports_effects()

bool esphome::light::LightState::supports_effects ( )

Return whether the light has any effects that meet the trait requirements.

Definition at line 178 of file light_state.cpp.

◆ toggle()

LightCall esphome::light::LightState::toggle ( )

Definition at line 16 of file light_state.cpp.

◆ turn_off()

LightCall esphome::light::LightState::turn_off ( )

Definition at line 15 of file light_state.cpp.

◆ turn_on()

LightCall esphome::light::LightState::turn_on ( )

Make a light state call.

Definition at line 14 of file light_state.cpp.

Field Documentation

◆ active_effect_index_

uint32_t esphome::light::LightState::active_effect_index_ {}

protected

Value for storing the index of the currently active effect. 0 if no effect is active.

Definition at line 184 of file light_state.h.

◆ current_values

LightColorValues esphome::light::LightState::current_values

The current values of the light as outputted to the light.

These values represent the "real" state of the light - During transitions this property will be changed continuously (in contrast to .remote_values, where they are constant during transitions).

This value does not have gamma correction applied.

This property is read-only for users. Any changes to it will be ignored.

Definition at line 65 of file light_state.h.

◆ default_transition_length_

uint32_t esphome::light::LightState::default_transition_length_ {}

protected

Default transition length for all transitions in ms.

Definition at line 208 of file light_state.h.

◆ effects_

std::vector<LightEffect *> esphome::light::LightState::effects_

protected

List of effects for this light.

Definition at line 216 of file light_state.h.

◆ flash_transition_length_

uint32_t esphome::light::LightState::flash_transition_length_ {}

protected

Transition length to use for flash transitions.

Definition at line 210 of file light_state.h.

◆ gamma_correct_

float esphome::light::LightState::gamma_correct_ {}

protected

Gamma correction factor for the light.

Definition at line 212 of file light_state.h.

◆ is_transformer_active_

bool esphome::light::LightState::is_transformer_active_ = false

protected

Definition at line 219 of file light_state.h.

◆ LightCall

friend esphome::light::LightState::LightCall

protected

Definition at line 160 of file light_state.h.

◆ LightOutput

friend esphome::light::LightState::LightOutput

protected

Definition at line 159 of file light_state.h.

◆ next_write_

bool esphome::light::LightState::next_write_ {true}

protected

Whether the light value should be written in the next cycle.

Definition at line 188 of file light_state.h.

◆ output_

LightOutput* esphome::light::LightState::output_

protected

Store the output to allow effects to have more access.

Definition at line 182 of file light_state.h.

◆ remote_values

LightColorValues esphome::light::LightState::remote_values

The remote color values reported to the frontend.

These are different from the "current" values: For example transitions will continuously change the "current" values. But the remote values will immediately switch to the target value for a transition, reducing the number of packets sent.

This value does not have gamma correction applied.

This property is read-only for users. Any changes to it will be ignored.

Definition at line 77 of file light_state.h.

◆ remote_values_callback_

CallbackManager<void()> esphome::light::LightState::remote_values_callback_ {}

protected

Callback to call when new values for the frontend are available.

"Remote values" are light color values that are reported to the frontend and have a lower publish frequency than the "real" color values. For example, during transitions the current color value may change continuously, but the remote values will be reported as the target values starting with the beginning of the transition.

Definition at line 200 of file light_state.h.

◆ restore_mode_

LightRestoreMode esphome::light::LightState::restore_mode_

protected

Restore mode of the light.

Definition at line 214 of file light_state.h.

◆ rtc_

ESPPreferenceObject esphome::light::LightState::rtc_

protected

Object used to store the persisted values of the light.

Definition at line 191 of file light_state.h.

◆ target_state_reached_callback_

CallbackManager<void()> esphome::light::LightState::target_state_reached_callback_ {}

protected

Callback to call when the state of current_values and remote_values are equal This should be called once the state of current_values changed and equals the state of remote_values.

Definition at line 205 of file light_state.h.

◆ transformer_

std::unique_ptr<LightTransformer> esphome::light::LightState::transformer_ {nullptr}

protected

The currently active transformer for this light (transition/flash).

Definition at line 186 of file light_state.h.

The documentation for this class was generated from the following files:

/opt/build/esphome/esphome/components/light/light_state.h
/opt/build/esphome/esphome/components/light/light_state.cpp

Public Member Functions

Data Fields

Protected Member Functions

Protected Attributes

Detailed Description

Constructor & Destructor Documentation

◆ LightState()

Member Function Documentation

◆ add_effects()

◆ add_new_remote_values_callback()

◆ add_new_target_state_reached_callback()

◆ current_values_as_binary()

◆ current_values_as_brightness()

◆ current_values_as_ct()

◆ current_values_as_cwww()

◆ current_values_as_rgb()

◆ current_values_as_rgbct()

◆ current_values_as_rgbw()

◆ current_values_as_rgbww()

◆ dump_config()

◆ get_active_effect_()

◆ get_default_transition_length()

◆ get_effect_name()

◆ get_effects()

◆ get_flash_transition_length()

◆ get_gamma_correct()

◆ get_output()

◆ get_setup_priority()

◆ get_traits()

◆ is_transformer_active()

◆ loop()

◆ make_call()

◆ publish_state()

◆ save_remote_values_()

◆ set_default_transition_length()

◆ set_flash_transition_length()

◆ set_gamma_correct()

◆ set_immediately_()

◆ set_restore_mode()

◆ setup()

◆ start_effect_()

◆ start_flash_()

◆ start_transition_()

◆ stop_effect_()

◆ supports_effects()

◆ toggle()

◆ turn_off()

◆ turn_on()

Field Documentation

◆ active_effect_index_

◆ current_values

◆ default_transition_length_

◆ effects_

◆ flash_transition_length_

◆ gamma_correct_

◆ is_transformer_active_

◆ LightCall

◆ LightOutput

◆ next_write_

◆ output_

◆ remote_values

◆ remote_values_callback_

◆ restore_mode_

◆ rtc_

◆ target_state_reached_callback_

◆ transformer_