contains method

Implementation

@override
bool contains(Offset position) {
  if (points.isNotEmpty) {
    final ChartMarker marker = series.markerAt(currentSegmentIndex);
    return tooltipTouchBounds(
      // By default, line segments hold current and next point positions.
      // In a loop, tapping on the 3rd segment might return the 2nd segment's
      // pointIndex because the 2nd segment includes both the 2nd & 3rd points.
      // Using points[0] stops this mix-up and gives the correct point index.
      points[0],
      marker.width,
      marker.height,
    ).contains(position);
  }
  return false;
}