decodeSliderTrackShape static method

SliderTrackShape? decodeSliderTrackShape(dynamic value, { bool validate = true, })

Decodes the given value to a SliderTrackShape. This expects the value to have an attribute named "type" that is one of the following values:

• rectangular
• rounded

The schema for the rest of the attributes depends on the "type".

Type: rectangular

{
  "type": "rectangular"
}

Type: rounded

{
  "type": "rounded"
}

See also:

• decodeColor
• decodeShowValueIndicator
• decodeSliderComponentShape
• decodeRangeSliderThumbShape
• decodeRangeSliderTickMarkShape
• decodeRangeSliderTrackShape
• decodeRangeSliderValueIndicatorShape

Implementation

static SliderTrackShape? decodeSliderTrackShape(
  dynamic value, {
  bool validate = true,
}) {
  SliderTrackShape? result;
  if (value is SliderTrackShape) {
    result = value;
  } else {
    assert(value == null || value['type'] is String);
    _checkSupported(
      'type',
      [
        'rectangular',
        'rounded',
      ],
      value == null ? null : value['type'],
    );

    if (value != null) {
      assert(SchemaValidator.validate(
        schemaId: '$_baseSchemaUrl/slider_track_shape',
        value: value,
        validate: validate,
      ));
      String? type = value['type'];
      switch (type) {
        case 'rectangular':
          result = RectangularSliderTrackShape();
          break;

        case 'rounded':
          result = RoundedRectSliderTrackShape();
          break;
      }
    }
  }

  return result;
}