add method

Box add({
  1. double? width,
  2. double? height,
})

Returns a box with its width or height increased by width or height (or decreased if the given width or height are negative, clamped to zero).

Implementation

Box add({
  double? width,
  double? height,
}) =>
    copyWith(
      width: width == null ? this.width : max(0, ((this.height ?? 0.0) + width)),
      height: height == null ? this.height : max(0, ((this.height ?? 0.0) + height)),
    );