decodeChartTitleDirection static method

ChartTitleDirection? decodeChartTitleDirection(
  1. dynamic map, {
  2. bool validate = true,
})

Expects the map to be either a common.ChartTitleDirection or a String containing one of the following values:

  • auto
  • horizontal
  • vertical

Implementation

static common.ChartTitleDirection? decodeChartTitleDirection(
  dynamic map, {
  bool validate = true,
}) {
  common.ChartTitleDirection? result;

  if (map is common.ChartTitleDirection) {
    result = map;
  } else if (map != null) {
    assert(SchemaValidator.validate(
      schemaId: '$_baseSchemaUrl/chart_title_direction',
      value: map,
      validate: validate,
    ));

    switch (map) {
      case 'auto':
        result = common.ChartTitleDirection.auto;
        break;

      case 'horizontal':
        result = common.ChartTitleDirection.horizontal;
        break;

      case 'vertical':
        result = common.ChartTitleDirection.vertical;
        break;

      default:
        throw Exception(
          '[decodeChartTitleDirection]: map is not supported: [$map]',
        );
    }
  }

  return result;
}