drawDataLabelWithBackground method

Implementation

@override
void drawDataLabelWithBackground(
  CircularChartDataLabelPositioned dataLabelPositioned,
  int index,
  Canvas canvas,
  String dataLabel,
  Offset offset,
  int angle,
  TextStyle style,
  Paint fillPaint,
  Paint strokePaint,
) {
  final TextStyle effectiveTextStyle = parent!.themeData!.textTheme.bodySmall!
      .copyWith(color: Colors.black)
      .merge(parent!.chartThemeData!.dataLabelTextStyle)
      .merge(dataLabelSettings.textStyle);

  final CircularChartPoint point = dataLabelPositioned.point!;
  if (!point.isVisible || !segments[index].isVisible) {
    return;
  }

  final Rect labelRect = point.labelRect;
  canvas.save();
  canvas.translate(labelRect.center.dx, labelRect.center.dy);
  canvas.rotate((angle * pi) / 180);
  canvas.translate(-labelRect.center.dx, -labelRect.center.dy);
  if (dataLabelSettings.borderWidth > 0 &&
      strokePaint.color != Colors.transparent) {
    _drawLabelRect(
      strokePaint,
      Rect.fromLTRB(
        labelRect.left,
        labelRect.top,
        labelRect.right,
        labelRect.bottom,
      ),
      dataLabelSettings.borderRadius,
      canvas,
    );
  }

  if (fillPaint.color != Colors.transparent) {
    _drawLabelRect(
      fillPaint,
      Rect.fromLTRB(
        labelRect.left,
        labelRect.top,
        labelRect.right,
        labelRect.bottom,
      ),
      dataLabelSettings.borderRadius,
      canvas,
    );
  }
  canvas.restore();

  drawDataLabel(
    canvas,
    dataLabel,
    offset,
    effectiveTextStyle,
    dataLabelSettings.angle,
  );
}