toOptionsJSON method

Implementation

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

  if (accessibility != null) {
    buffer.writeAll(['"accessibility":', accessibility?.toJSON(), ','], '');
  }
  if (className != null) {
    buffer.writeAll(['"className":', jsonEncode(className), ','], '');
  }
  if (color != null) {
    buffer.writeAll(['"color":', jsonEncode(color), ','], '');
  }
  if (colorIndex != null) {
    buffer.writeAll(['"colorIndex":', colorIndex, ','], '');
  }
  if (custom != null) {
    buffer.write('"custom":{');
    for (var item in custom!.entries) {
      buffer.writeAll(['"', item.key, '":', jsonEncode(item.value), ','], '');
    }
    buffer.write('},');
  }
  if (dataLabels != null) {
    buffer.write('"dataLabels":[');
    for (var item in dataLabels!) {
      buffer.writeAll([item.toJSON(), ','], '');
    }
    buffer.write('],');
  }
  if (description != null) {
    buffer.writeAll(['"description":', jsonEncode(description), ','], '');
  }
  if (dragDrop != null) {
    buffer.writeAll(['"dragDrop":', dragDrop?.toJSON(), ','], '');
  }
  if (drilldown != null) {
    buffer.writeAll(['"drilldown":', jsonEncode(drilldown), ','], '');
  }
  if (events != null) {
    buffer.writeAll(['"events":', events?.toJSON(), ','], '');
  }
  if (id != null) {
    buffer.writeAll(['"id":', jsonEncode(id), ','], '');
  }
  if (labelrank != null) {
    buffer.writeAll(['"labelrank":', labelrank, ','], '');
  }
  if (marker != null) {
    buffer.writeAll(['"marker":', marker?.toJSON(), ','], '');
  }
  if (name != null) {
    buffer.writeAll(['"name":', jsonEncode(name), ','], '');
  }
  if (selected != null) {
    buffer.writeAll(['"selected":', selected, ','], '');
  }
  if (x != null) {
    buffer.writeAll(['"x":', jsonEncode(x), ','], '');
  }
  if (y != null) {
    buffer.writeAll(['"y":', y, ','], '');
  }
}