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esphome/esphome/components/lvgl/styles.py
2025-04-09 12:15:39 +12:00

90 lines
2.9 KiB
Python

from esphome import automation
import esphome.codegen as cg
import esphome.config_validation as cv
from esphome.const import CONF_ID
from esphome.core import ID
from esphome.cpp_generator import MockObj
from .defines import (
CONF_STYLE_DEFINITIONS,
CONF_THEME,
CONF_TOP_LAYER,
LValidator,
literal,
)
from .helpers import add_lv_use
from .lvcode import LambdaContext, LocalVariable, lv, lv_assign, lv_variable
from .schemas import ALL_STYLES, FULL_STYLE_SCHEMA, STYLE_REMAP
from .types import ObjUpdateAction, lv_lambda_t, lv_obj_t, lv_obj_t_ptr, lv_style_t
from .widgets import (
Widget,
add_widgets,
set_obj_properties,
theme_widget_map,
wait_for_widgets,
)
from .widgets.obj import obj_spec
async def style_set(svar, style):
for prop, validator in ALL_STYLES.items():
if (value := style.get(prop)) is not None:
if isinstance(validator, LValidator):
value = await validator.process(value)
if isinstance(value, list):
value = "|".join(value)
remapped_prop = STYLE_REMAP.get(prop, prop)
lv.call(f"style_set_{remapped_prop}", svar, literal(value))
async def styles_to_code(config):
"""Convert styles to C__ code."""
for style in config.get(CONF_STYLE_DEFINITIONS, ()):
svar = cg.new_Pvariable(style[CONF_ID])
lv.style_init(svar)
await style_set(svar, style)
@automation.register_action(
"lvgl.style.update",
ObjUpdateAction,
FULL_STYLE_SCHEMA.extend(
{
cv.Required(CONF_ID): cv.use_id(lv_style_t),
}
),
)
async def style_update_to_code(config, action_id, template_arg, args):
await wait_for_widgets()
style = await cg.get_variable(config[CONF_ID])
async with LambdaContext(parameters=args, where=action_id) as context:
await style_set(style, config)
var = cg.new_Pvariable(action_id, template_arg, await context.get_lambda())
return var
async def theme_to_code(config):
if theme := config.get(CONF_THEME):
add_lv_use(CONF_THEME)
for w_name, style in theme.items():
if not isinstance(style, dict):
continue
lname = "lv_theme_apply_" + w_name
apply = lv_variable(lv_lambda_t, lname)
theme_widget_map[w_name] = apply
ow = Widget.create("obj", MockObj(ID("obj")), obj_spec)
async with LambdaContext([(lv_obj_t_ptr, "obj")], where=w_name) as context:
await set_obj_properties(ow, style)
lv_assign(apply, await context.get_lambda())
async def add_top_layer(lv_component, config):
top_layer = lv.disp_get_layer_top(lv_component.get_disp())
if top_conf := config.get(CONF_TOP_LAYER):
with LocalVariable("top_layer", lv_obj_t, top_layer) as top_layer_obj:
top_w = Widget(top_layer_obj, obj_spec, top_conf)
await set_obj_properties(top_w, top_conf)
await add_widgets(top_w, top_conf)