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esphome/esphome/components/lvgl/widgets/line.py
2025-06-03 21:28:06 +01:00

53 lines
1.3 KiB
Python

import esphome.codegen as cg
import esphome.config_validation as cv
from esphome.const import CONF_X, CONF_Y
from esphome.core import Lambda
from ..defines import CONF_MAIN, call_lambda
from ..lvcode import lv_add
from ..schemas import point_schema
from ..types import LvCompound, LvType
from . import Widget, WidgetType
CONF_LINE = "line"
CONF_POINTS = "points"
CONF_POINT_LIST_ID = "point_list_id"
lv_point_t = cg.global_ns.struct("lv_point_t")
LINE_SCHEMA = {
cv.Required(CONF_POINTS): cv.ensure_list(point_schema),
}
async def process_coord(coord):
if isinstance(coord, Lambda):
coord = call_lambda(
await cg.process_lambda(coord, [], return_type="lv_coord_t")
)
if not coord.endswith("()"):
coord = f"static_cast<lv_coord_t>({coord})"
return cg.RawExpression(coord)
return cg.safe_exp(coord)
class LineType(WidgetType):
def __init__(self):
super().__init__(
CONF_LINE,
LvType("LvLineType", parents=(LvCompound,)),
(CONF_MAIN,),
LINE_SCHEMA,
)
async def to_code(self, w: Widget, config):
points = [
[await process_coord(p[CONF_X]), await process_coord(p[CONF_Y])]
for p in config[CONF_POINTS]
]
lv_add(w.var.set_points(points))
line_spec = LineType()