"""MDI Icon Utility."""
from . import types
[docs]def get_icon(fielddef, state=None):
"""
Return Appropriate mdi-icon_ for `fielddef` at `state`.
.. _mdi-icon: https://materialdesignicons.com/
>>> from pyebus import FieldDef, types
>>> get_icon(FieldDef(0, 'name', types.FloatType(), unit='°C'))
'mdi:thermometer'
>>> get_icon(FieldDef(0, 'name', types.TimeType()))
'mdi:timer'
>>> get_icon(FieldDef(0, 'name', types.EnumType(('on', 'off'))))
'mdi:toggle-switch'
>>> get_icon(FieldDef(0, 'name', types.EnumType(('on', 'off'))), 'off')
'mdi:toggle-switch-off'
>>> get_icon(FieldDef(0, 'name', types.EnumType(('on', 'off'))), 'on')
'mdi:toggle-switch'
"""
type_ = fielddef.type_
if fielddef.unit in ("°C", "K", "°F"):
return "mdi:thermometer"
if isinstance(type_, (types.TimeType, types.DateType, types.DateTimeType, types.HourMinuteType)):
return "mdi:timer"
if isinstance(type_, types.EnumType):
if tuple(sorted(type_.values)) in [("off", "on"), ("no", "yes")]:
if state in (False, "off", "no"):
return "mdi:toggle-switch-off"
return "mdi:toggle-switch"
return None