onPaint method

@override void onPaint(Canvas canvas)

Draws segment in series bounds.

Implementation

@override
void onPaint(Canvas canvas) {
  _setSegmentProperties();
  final SeriesRendererDetails seriesRendererDetails =
      SeriesHelper.getSeriesRendererDetails(
          _segmentProperties.seriesRenderer);
  if (_segmentProperties.series.animationDuration > 0 == true &&
      seriesRendererDetails
              .stateProperties.renderingDetails.isLegendToggled ==
          false) {
    if (seriesRendererDetails
                .stateProperties.renderingDetails.widgetNeedUpdate ==
            false ||
        seriesRendererDetails.reAnimate == true) {
      if (_isTransposed) {
        _lowX = _segmentProperties.lowPoint.x;
        _highX = _segmentProperties.highPoint.x;
        _centerX = _highX + ((_lowX - _highX) / 2);
        _highX = _centerX + ((_centerX - _highX).abs() * animationFactor);
        _lowX = _centerX - ((_lowX - _centerX).abs() * animationFactor);
        canvas.drawLine(Offset(_lowX, _segmentProperties.lowPoint.y),
            Offset(_highX, _segmentProperties.highPoint.y), strokePaint!);
      } else {
        _centerY = _segmentProperties.high +
            ((_segmentProperties.low - _segmentProperties.high) / 2);
        _highY = _centerY -
            ((_centerY - _segmentProperties.high) * animationFactor);
        _lowY = _centerY +
            ((_segmentProperties.low - _centerY) * animationFactor);
        canvas.drawLine(Offset(_segmentProperties.lowPoint.x, _highY),
            Offset(_segmentProperties.highPoint.x, _lowY), strokePaint!);
      }
    } else {
      _currentSegment =
          seriesRendererDetails.segments[currentSegmentIndex!] as HiloSegment;
      final SeriesRendererDetails? oldSeriesDetails =
          _currentSegment._segmentProperties.oldSeriesRenderer != null
              ? SeriesHelper.getSeriesRendererDetails(
                  _currentSegment._segmentProperties.oldSeriesRenderer!)
              : null;
      _oldSegment = seriesRendererDetails.reAnimate == false &&
              (oldSeriesDetails != null &&
                  oldSeriesDetails.segments.isNotEmpty == true &&
                  oldSeriesDetails.segments[0] is HiloSegment &&
                  oldSeriesDetails.segments.length - 1 >=
                          currentSegmentIndex! ==
                      true)
          ? oldSeriesDetails.segments[currentSegmentIndex!] as HiloSegment?
          : null;
      animateHiloSeres(
          _isTransposed,
          _segmentProperties.lowPoint,
          _segmentProperties.highPoint,
          _oldSegment?._segmentProperties.lowPoint,
          _oldSegment?._segmentProperties.highPoint,
          animationFactor,
          strokePaint!,
          canvas,
          _segmentProperties.seriesRenderer);
    }
  } else {
    if (seriesRendererDetails.dashArray![0] != 0 &&
        seriesRendererDetails.dashArray![1] != 0) {
      _segmentProperties.path = Path();
      _segmentProperties.path
          .moveTo(_segmentProperties.lowPoint.x, _segmentProperties.high);
      _segmentProperties.path
          .lineTo(_segmentProperties.highPoint.x, _segmentProperties.low);
      drawDashedLine(canvas, seriesRendererDetails.dashArray!, strokePaint!,
          _segmentProperties.path);
    } else {
      canvas.drawLine(
          Offset(_segmentProperties.lowPoint.x, _segmentProperties.high),
          Offset(_segmentProperties.highPoint.x, _segmentProperties.low),
          strokePaint!);
    }
  }
}