dataLabelPosition method

Implementation

@override
Offset dataLabelPosition(
  ChartElementParentData current,
  ChartDataLabelAlignment alignment,
  Size size,
) {
  switch (current.position) {
    case ChartDataPointType.y:
    case ChartDataPointType.high:
      switch (alignment) {
        case ChartDataLabelAlignment.auto:
        case ChartDataLabelAlignment.outer:
        case ChartDataLabelAlignment.top:
          return super.dataLabelPosition(
            current,
            ChartDataLabelAlignment.outer,
            size,
          );

        case ChartDataLabelAlignment.bottom:
          return super.dataLabelPosition(
            current,
            ChartDataLabelAlignment.bottom,
            size,
          );

        case ChartDataLabelAlignment.middle:
          return super.dataLabelPosition(
            current,
            ChartDataLabelAlignment.middle,
            size,
          );
      }

    case ChartDataPointType.low:
      switch (alignment) {
        case ChartDataLabelAlignment.auto:
        case ChartDataLabelAlignment.outer:
        case ChartDataLabelAlignment.bottom:
          return super.dataLabelPosition(
            current,
            ChartDataLabelAlignment.bottom,
            size,
          );

        case ChartDataLabelAlignment.top:
          return super.dataLabelPosition(
            current,
            ChartDataLabelAlignment.top,
            size,
          );

        case ChartDataLabelAlignment.middle:
          return super.dataLabelPosition(
            current,
            ChartDataLabelAlignment.middle,
            size,
          );
      }

    case ChartDataPointType.open:
    case ChartDataPointType.close:
    case ChartDataPointType.volume:
    case ChartDataPointType.median:
    case ChartDataPointType.mean:
    case ChartDataPointType.outliers:
    case ChartDataPointType.bubbleSize:
    case ChartDataPointType.cumulative:
      break;
  }

  return Offset.zero;
}