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[lvgl] Fix indicator updates (#16780)

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This commit is contained in:
Clyde Stubbs
2026-06-04 01:43:48 +10:00
committed by GitHub
parent 89ddd34cb9
commit 2009f6cc5f
2 changed files with 12 additions and 8 deletions
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1
esphome/components/lvgl/widgets/__init__.py
View File

@@ -290,6 +290,7 @@ class Widget:
# Properties for linear equations
self.slope = None
self.y_int = None
self.parent = None
@staticmethod
def create(name, var, wtype: WidgetType, config: dict = None):

19
esphome/components/lvgl/widgets/meter.py
View File

@@ -430,7 +430,8 @@ class MeterType(WidgetType):
tvar, LV_PART.MAIN, await arc_style.get_var()
)
lw = Widget.create(iid, tvar, arc_indicator_type)
await set_indicator_values(lw, v)
lw.parent = scale_var
await set_indicator_values(scale_var, lw, v)
if t == CONF_TICK_STYLE:
# No object created for this
@@ -482,7 +483,8 @@ class MeterType(WidgetType):
if option in v:
props["line_" + option] = v[option]
lw = await widget_to_code(props, line_indicator_type, scale_var)
await set_indicator_values(lw, v)
lw.parent = scale_var
await set_indicator_values(scale_var, lw, v)
if t == CONF_IMAGE:
add_lv_use(CONF_IMAGE)
@@ -501,7 +503,8 @@ class MeterType(WidgetType):
}
iw = await widget_to_code(props, image_indicator_type, scale_var)
await iw.set_property(CONF_SRC, await lv_image.process(src))
await set_indicator_values(iw, v)
iw.parent = scale_var
await set_indicator_values(scale_var, iw, v)
# Hide the scale line
lv.obj_set_style_arc_opa(scale_var, LV_OPA.TRANSP, LV_PART.MAIN)
@@ -607,27 +610,27 @@ async def indicator_update_to_code(config, action_id, template_arg, args):
widget = await get_widgets(config)
async def set_value(w: Widget):
await set_indicator_values(w, config)
await set_indicator_values(w.parent, w, config)
return await action_to_code(
widget, set_value, action_id, template_arg, args, config
)
async def set_indicator_values(indicator: Widget, config):
async def set_indicator_values(scale: MockObj, indicator: Widget, config):
"""Update scale section values (replaces meter indicator values)"""
start_value = await get_start_value(config)
end_value = await get_end_value(config)
if indicator.type is arc_indicator_type:
# For scale sections, we update the range
if start_value is not None and end_value is not None:
lv.scale_section_set_range(indicator.obj, start_value, end_value)
lv.scale_set_section_range(scale, indicator.obj, start_value, end_value)
elif start_value is not None:
# If only start value, use it as both start and end (single point)
lv.scale_section_set_range(indicator.obj, start_value, start_value)
lv.scale_set_section_range(scale, indicator.obj, start_value, start_value)
elif end_value is not None:
# If only end value, assume range from 0 to end_value
lv.scale_section_set_range(indicator.obj, 0, end_value)
lv.scale_set_section_range(scale, indicator.obj, 0, end_value)
return
if start_value is None: