decoration property

@override ButtonStateProperty<Decoration> get decoration

Implementation

@override
ButtonStateProperty<Decoration> get decoration {
  if (shape == ButtonShape.circle) {
    return (context, states) {
      var decoration = variance.decoration(context, states);
      if (decoration is BoxDecoration) {
        return BoxDecoration(
          color: decoration.color,
          image: decoration.image,
          border: decoration.border,
          borderRadius: null,
          boxShadow: decoration.boxShadow,
          gradient: decoration.gradient,
          shape: BoxShape.circle,
          backgroundBlendMode: decoration.backgroundBlendMode,
        );
      } else if (decoration is ShapeDecoration) {
        return decoration.copyWith(
          shape: shape == ButtonShape.circle ? const CircleBorder() : null,
        );
      } else {
        throw Exception(
            'Unsupported decoration type ${decoration.runtimeType}');
      }
    };
  }
  return variance.decoration;
}