decodeOrdinalTickProviderSpec static method
Decodes the object from a Map-like dynamic structure. This expects the JSON format to be of the following structure:
{
"ticks": <List<TickSpec>>,
"type": <"basic" | "static">
}
Implementation
static charts.OrdinalTickProviderSpec? decodeOrdinalTickProviderSpec(
dynamic map, {
bool validate = true,
}) {
charts.OrdinalTickProviderSpec? result;
if (map is charts.OrdinalTickProviderSpec) {
result = map;
} else if (map != null) {
assert(SchemaValidator.validate(
schemaId: '$_baseSchemaUrl/ordinal_tick_provider_spec',
value: map,
validate: validate,
));
final type = map['type'];
switch (type) {
case 'basic':
result = const charts.BasicOrdinalTickProviderSpec();
break;
case 'static':
result = charts.StaticOrdinalTickProviderSpec(
decodeTickSpecList<String>(
map['ticks'],
validate: false,
)!,
);
break;
default:
throw Exception(
'[decodeOrdinalTickProviderSpec]: unknown type encountered: [$type]',
);
}
}
return result;
}