Allow non-addressable lights in light partitions (#2256)

esphome/components/light/addressable_light_wrapper.h

@@ -0,0 +1,56 @@
+#pragma once
+
+#include "esphome/core/component.h"
+#include "addressable_light.h"
+
+namespace esphome {
+namespace light {
+
+class AddressableLightWrapper : public light::AddressableLight {
+ public:
+  explicit AddressableLightWrapper(light::LightState *light_state) : light_state_(light_state) {
+    this->wrapper_state_ = new uint8_t[5];
+  }
+
+  int32_t size() const override { return 1; }
+
+  void clear_effect_data() override { this->wrapper_state_[4] = 0; }
+
+  light::LightTraits get_traits() override { return this->light_state_->get_traits(); }
+
+  void write_state(light::LightState *state) override {
+    float gamma = this->light_state_->get_gamma_correct();
+    float r = gamma_uncorrect(this->wrapper_state_[0] / 255.0f, gamma);
+    float g = gamma_uncorrect(this->wrapper_state_[1] / 255.0f, gamma);
+    float b = gamma_uncorrect(this->wrapper_state_[2] / 255.0f, gamma);
+    float w = gamma_uncorrect(this->wrapper_state_[3] / 255.0f, gamma);
+    float brightness = fmaxf(r, fmaxf(g, b));
+
+    auto call = this->light_state_->make_call();
+    call.set_state(true);
+    call.set_brightness_if_supported(1.0f);
+    call.set_color_brightness_if_supported(brightness);
+    call.set_red_if_supported(r);
+    call.set_green_if_supported(g);
+    call.set_blue_if_supported(b);
+    call.set_white_if_supported(w);
+    call.set_transition_length_if_supported(0);
+    call.set_publish(false);
+    call.set_save(false);
+    call.perform();
+
+    this->mark_shown_();
+  }
+
+ protected:
+  light::ESPColorView get_view_internal(int32_t index) const override {
+    return {&this->wrapper_state_[0], &this->wrapper_state_[1], &this->wrapper_state_[2],
+            &this->wrapper_state_[3], &this->wrapper_state_[4], &this->correction_};
+  }
+
+  light::LightState *light_state_;
+  uint8_t *wrapper_state_;
+};
+
+}  // namespace light
+}  // namespace esphome

esphome/components/partition/light.py

@@ -2,9 +2,12 @@ import esphome.codegen as cg
 import esphome.config_validation as cv
 from esphome.components import light
 from esphome.const import (
+    CONF_ADDRESSABLE_LIGHT_ID,
     CONF_FROM,
     CONF_ID,
+    CONF_LIGHT_ID,
     CONF_SEGMENTS,
+    CONF_SINGLE_LIGHT_ID,
     CONF_TO,
     CONF_OUTPUT_ID,
     CONF_REVERSED,
@@ -12,30 +15,47 @@ from esphome.const import (
 
 partitions_ns = cg.esphome_ns.namespace("partition")
 AddressableSegment = partitions_ns.class_("AddressableSegment")
+AddressableLightWrapper = cg.esphome_ns.namespace("light").class_(
+    "AddressableLightWrapper"
+)
 PartitionLightOutput = partitions_ns.class_(
     "PartitionLightOutput", light.AddressableLight
 )
 
 
 def validate_from_to(value):
-    if value[CONF_FROM] > value[CONF_TO]:
+    if CONF_ID in value and value[CONF_FROM] > value[CONF_TO]:
         raise cv.Invalid(
             f"From ({value[CONF_FROM]}) must not be larger than to ({value[CONF_TO]})"
         )
     return value
 
 
+ADDRESSABLE_SEGMENT_SCHEMA = cv.Schema(
+    {
+        cv.Required(CONF_ID): cv.use_id(light.AddressableLightState),
+        cv.Required(CONF_FROM): cv.positive_int,
+        cv.Required(CONF_TO): cv.positive_int,
+        cv.Optional(CONF_REVERSED, default=False): cv.boolean,
+    }
+)
+
+NONADDRESSABLE_SEGMENT_SCHEMA = cv.COMPONENT_SCHEMA.extend(
+    {
+        cv.Required(CONF_SINGLE_LIGHT_ID): cv.use_id(light.LightState),
+        cv.GenerateID(CONF_ADDRESSABLE_LIGHT_ID): cv.declare_id(
+            AddressableLightWrapper
+        ),
+        cv.GenerateID(CONF_LIGHT_ID): cv.declare_id(light.types.LightState),
+    }
+)
+
 CONFIG_SCHEMA = light.ADDRESSABLE_LIGHT_SCHEMA.extend(
     {
         cv.GenerateID(CONF_OUTPUT_ID): cv.declare_id(PartitionLightOutput),
         cv.Required(CONF_SEGMENTS): cv.All(
             cv.ensure_list(
-                {
-                    cv.Required(CONF_ID): cv.use_id(light.AddressableLightState),
-                    cv.Required(CONF_FROM): cv.positive_int,
-                    cv.Required(CONF_TO): cv.positive_int,
-                    cv.Optional(CONF_REVERSED, default=False): cv.boolean,
-                },
+                cv.Any(ADDRESSABLE_SEGMENT_SCHEMA, NONADDRESSABLE_SEGMENT_SCHEMA),
                 validate_from_to,
             ),
             cv.Length(min=1),
@@ -47,15 +67,25 @@ CONFIG_SCHEMA = light.ADDRESSABLE_LIGHT_SCHEMA.extend(
 async def to_code(config):
     segments = []
     for conf in config[CONF_SEGMENTS]:
-        var = await cg.get_variable(conf[CONF_ID])
-        segments.append(
-            AddressableSegment(
-                var,
-                conf[CONF_FROM],
-                conf[CONF_TO] - conf[CONF_FROM] + 1,
-                conf[CONF_REVERSED],
+        if CONF_SINGLE_LIGHT_ID in conf:
+            wrapper = cg.new_Pvariable(
+                conf[CONF_ADDRESSABLE_LIGHT_ID],
+                await cg.get_variable(conf[CONF_SINGLE_LIGHT_ID]),
+            )
+            light_state = cg.new_Pvariable(conf[CONF_LIGHT_ID], "", wrapper)
+            await cg.register_component(light_state, conf)
+            cg.add(cg.App.register_light(light_state))
+            segments.append(AddressableSegment(light_state, 0, 1, False))
+
+        else:
+            segments.append(
+                AddressableSegment(
+                    await cg.get_variable(conf[CONF_ID]),
+                    conf[CONF_FROM],
+                    conf[CONF_TO] - conf[CONF_FROM] + 1,
+                    conf[CONF_REVERSED],
+                )
             )
-        )
 
     var = cg.new_Pvariable(config[CONF_OUTPUT_ID], segments)
     await cg.register_component(var, config)

esphome/const.py

@@ -320,6 +320,7 @@ CONF_LEVEL = "level"
 CONF_LG = "lg"
 CONF_LIBRARIES = "libraries"
 CONF_LIGHT = "light"
+CONF_LIGHT_ID = "light_id"
 CONF_LIGHTNING_ENERGY = "lightning_energy"
 CONF_LIGHTNING_THRESHOLD = "lightning_threshold"
 CONF_LINE_THICKNESS = "line_thickness"
@@ -586,6 +587,7 @@ CONF_SHOW_VALUES = "show_values"
 CONF_SHUNT_RESISTANCE = "shunt_resistance"
 CONF_SHUNT_VOLTAGE = "shunt_voltage"
 CONF_SHUTDOWN_MESSAGE = "shutdown_message"
+CONF_SINGLE_LIGHT_ID = "single_light_id"
 CONF_SIZE = "size"
 CONF_SLEEP_DURATION = "sleep_duration"
 CONF_SLEEP_PIN = "sleep_pin"

tests/test1.yaml

@@ -1615,6 +1615,7 @@ light:
       - id: addr2
         from: 20
         to: 25
+      - single_light_id: ${roomname}_lights
 
 remote_transmitter:
   - pin: 32