@mui/x-charts/PieChart/seriesConfig/tooltipPosition.js

The community edition of MUI X Charts components.

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.default = void 0;
var _findMinMax = require("../../internals/findMinMax");
const tooltipItemPositionGetter = params => {
  const {
    series,
    identifier,
    placement,
    seriesLayout
  } = params;
  if (!identifier || identifier.dataIndex === undefined) {
    return null;
  }
  const itemSeries = series.pie?.series[identifier.seriesId];
  const layout = seriesLayout.pie?.[identifier.seriesId];
  if (itemSeries == null || layout == null) {
    return null;
  }
  const {
    center,
    radius
  } = layout;
  const {
    data
  } = itemSeries;
  const dataItem = data[identifier.dataIndex];
  if (!dataItem) {
    return null;
  }

  // Compute the 4 corner points of the arc to get the bounding box.
  const points = [[radius.inner, dataItem.startAngle], [radius.inner, dataItem.endAngle], [radius.outer, dataItem.startAngle], [radius.outer, dataItem.endAngle]].map(([r, angle]) => ({
    x: center.x + r * Math.sin(angle),
    y: center.y - r * Math.cos(angle)
  }));
  const [x0, x1] = (0, _findMinMax.findMinMax)(points.map(p => p.x));
  const [y0, y1] = (0, _findMinMax.findMinMax)(points.map(p => p.y));
  switch (placement) {
    case 'bottom':
      return {
        x: (x1 + x0) / 2,
        y: y1
      };
    case 'left':
      return {
        x: x0,
        y: (y1 + y0) / 2
      };
    case 'right':
      return {
        x: x1,
        y: (y1 + y0) / 2
      };
    case 'top':
    default:
      return {
        x: (x1 + x0) / 2,
        y: y0
      };
  }
};
var _default = exports.default = tooltipItemPositionGetter;