toString method

@override String toString()

A string representation of this object.

Some classes have a default textual representation, often paired with a static parse function (like int.parse). These classes will provide the textual representation as their string representation.

Other classes have no meaningful textual representation that a program will care about. Such classes will typically override toString to provide useful information when inspecting the object, mainly for debugging or logging.

Implementation

@override
String toString() {
  final result = StringBuffer();
  for (int y = 0; y < _height; ++y) {
    final bytesY = _bytes[y];
    for (int x = 0; x < _width; ++x) {
      switch (bytesY[x]) {
        case 0:
          result.write(' 0');
          break;
        case 1:
          result.write(' 1');
          break;
        default:
          result.write('  ');
          break;
      }
    }
    result.write('\n');
  }
  return result.toString();
}