Method generateLabels

src/controllers/controller.doughnut.js:92–119

(chart)

      legend: {
        labels: {
          generateLabels(chart) {
            const data = chart.data;
            const {labels: {pointStyle, textAlign, color, useBorderRadius, borderRadius}} = chart.legend.options;
            if (data.labels.length && data.datasets.length) {
              return data.labels.map((label, i) => {
                const meta = chart.getDatasetMeta(0);
                const style = meta.controller.getStyle(i);

                return {
                  text: label,
                  fillStyle: style.backgroundColor,
                  fontColor: color,
                  hidden: !chart.getDataVisibility(i),
                  lineDash: style.borderDash,
                  lineDashOffset: style.borderDashOffset,
                  lineJoin: style.borderJoinStyle,
                  lineWidth: style.borderWidth,
                  strokeStyle: style.borderColor,
                  textAlign: textAlign,
                  pointStyle: pointStyle,
                  borderRadius: useBorderRadius && (borderRadius || style.borderRadius),
                  // Extra data used for toggling the correct item
                  index: i
                };
              });
            }
            return [];
          }
        },

        onClick(e, legendItem, legend) {