toOptionsJSON method

Implementation

@override
void toOptionsJSON(StringBuffer buffer) {
  super.toOptionsJSON(buffer);

  if (backgroundColor != null) {
    buffer.writeAll(
        ['"backgroundColor":', jsonEncode(backgroundColor), ','], '');
  }
  if (borderColor != null) {
    buffer.writeAll(['"borderColor":', jsonEncode(borderColor), ','], '');
  }
  if (borderRadius != null) {
    buffer.writeAll(['"borderRadius":', borderRadius, ','], '');
  }
  if (enabled != null) {
    buffer.writeAll(['"enabled":', enabled, ','], '');
  }
  if (height != null) {
    buffer.writeAll(['"height":', height, ','], '');
  }
  if (lineWidth != null) {
    buffer.writeAll(['"lineWidth":', lineWidth, ','], '');
  }
  if (symbols != null) {
    buffer.write('"symbols":[');
    for (var item in symbols!) {
      buffer.writeAll([jsonEncode(item), ','], '');
    }
    buffer.write('],');
  }
  if (width != null) {
    buffer.writeAll(['"width":', width, ','], '');
  }
}