Function drawPointLabelBox

src/scales/scale.radialLinear.js:231–259

(ctx, opts, item)

}

function drawPointLabelBox(ctx, opts, item) {
  const {left, top, right, bottom} = item;
  const {backdropColor} = opts;

  if (!isNullOrUndef(backdropColor)) {
    const borderRadius = toTRBLCorners(opts.borderRadius);
    const padding = toPadding(opts.backdropPadding);
    ctx.fillStyle = backdropColor;

    const backdropLeft = left - padding.left;
    const backdropTop = top - padding.top;
    const backdropWidth = right - left + padding.width;
    const backdropHeight = bottom - top + padding.height;

    if (Object.values(borderRadius).some(v => v !== 0)) {
      ctx.beginPath();
      addRoundedRectPath(ctx, {
        x: backdropLeft,
        y: backdropTop,
        w: backdropWidth,
        h: backdropHeight,
        radius: borderRadius,
      });
      ctx.fill();
    } else {
      ctx.fillRect(backdropLeft, backdropTop, backdropWidth, backdropHeight);
    }
  }
}

function drawPointLabels(scale, labelCount) {
  const {ctx, options: {pointLabels}} = scale;