toMap method

Implementation

Map<String, dynamic> toMap() {
  return {
    'shapes': shapes.map((x) => x.toMap()).toList(),
    'redoStack': redoStack.map((x) => x.toMap()).toList(),
    'undoStack': undoStack.map((x) => x.toMap()).toList(),
    'useImageBackground': useImageBackground,
  };
}