@mui/x-charts/context/CartesianProvider/computeValue.js

The community edition of the Charts components (MUI X).

"use strict";

var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");
Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.computeValue = computeValue;
var _extends2 = _interopRequireDefault(require("@babel/runtime/helpers/extends"));
var _d3Scale = require("@mui/x-charts-vendor/d3-scale");
var _axis = require("../../models/axis");
var _colorScale = require("../../internals/colorScale");
var _useTicks = require("../../hooks/useTicks");
var _getScale = require("../../internals/getScale");
var _zoom = require("./zoom");
var _getAxisExtremum = require("./getAxisExtremum");
const getRange = (drawingArea, axisDirection, isReverse) => {
  const range = axisDirection === 'x' ? [drawingArea.left, drawingArea.left + drawingArea.width] : [drawingArea.top + drawingArea.height, drawingArea.top];
  return isReverse ? range.reverse() : range;
};
const isDateData = data => data?.[0] instanceof Date;
function createDateFormatter(axis, range) {
  const timeScale = (0, _d3Scale.scaleTime)(axis.data, range);
  return (v, {
    location
  }) => location === 'tick' ? timeScale.tickFormat(axis.tickNumber)(v) : `${v.toLocaleString()}`;
}
const DEFAULT_CATEGORY_GAP_RATIO = 0.2;
const DEFAULT_BAR_GAP_RATIO = 0.1;
function computeValue({
  drawingArea,
  formattedSeries,
  axis: allAxis,
  extremumGetters,
  axisDirection,
  zoomData,
  zoomOptions,
  getFilters
}) {
  const completeAxis = {};
  allAxis.forEach((eachAxis, axisIndex) => {
    const axis = eachAxis;
    const isDefaultAxis = axisIndex === 0;
    const zoomOption = zoomOptions?.[axis.id];
    const zoom = zoomData?.find(({
      axisId
    }) => axisId === axis.id);
    const zoomRange = zoom ? [zoom.start, zoom.end] : [0, 100];
    const range = getRange(drawingArea, axisDirection, axis.reverse);
    const [minData, maxData] = (0, _getAxisExtremum.getAxisExtremum)(axis, extremumGetters, isDefaultAxis, formattedSeries, zoom === undefined && !zoomOption ? getFilters : undefined // Do not apply filtering if zoom is already defined.
    );
    const data = axis.data ?? [];
    if ((0, _axis.isBandScaleConfig)(axis)) {
      const categoryGapRatio = axis.categoryGapRatio ?? DEFAULT_CATEGORY_GAP_RATIO;
      const barGapRatio = axis.barGapRatio ?? DEFAULT_BAR_GAP_RATIO;
      // Reverse range because ordinal scales are presented from top to bottom on y-axis
      const scaleRange = axisDirection === 'x' ? range : [range[1], range[0]];
      const zoomedRange = (0, _zoom.zoomScaleRange)(scaleRange, zoomRange);
      completeAxis[axis.id] = (0, _extends2.default)({
        categoryGapRatio,
        barGapRatio
      }, axis, {
        data,
        scale: (0, _d3Scale.scaleBand)(axis.data, zoomedRange).paddingInner(categoryGapRatio).paddingOuter(categoryGapRatio / 2),
        tickNumber: axis.data.length,
        colorScale: axis.colorMap && (axis.colorMap.type === 'ordinal' ? (0, _colorScale.getOrdinalColorScale)((0, _extends2.default)({
          values: axis.data
        }, axis.colorMap)) : (0, _colorScale.getColorScale)(axis.colorMap))
      });
      if (isDateData(axis.data)) {
        const dateFormatter = createDateFormatter(axis, scaleRange);
        completeAxis[axis.id].valueFormatter = axis.valueFormatter ?? dateFormatter;
      }
    }
    if ((0, _axis.isPointScaleConfig)(axis)) {
      const scaleRange = axisDirection === 'x' ? range : [...range].reverse();
      const zoomedRange = (0, _zoom.zoomScaleRange)(scaleRange, zoomRange);
      completeAxis[axis.id] = (0, _extends2.default)({}, axis, {
        data,
        scale: (0, _d3Scale.scalePoint)(axis.data, zoomedRange),
        tickNumber: axis.data.length,
        colorScale: axis.colorMap && (axis.colorMap.type === 'ordinal' ? (0, _colorScale.getOrdinalColorScale)((0, _extends2.default)({
          values: axis.data
        }, axis.colorMap)) : (0, _colorScale.getColorScale)(axis.colorMap))
      });
      if (isDateData(axis.data)) {
        const dateFormatter = createDateFormatter(axis, scaleRange);
        completeAxis[axis.id].valueFormatter = axis.valueFormatter ?? dateFormatter;
      }
    }
    if (axis.scaleType === 'band' || axis.scaleType === 'point') {
      // Could be merged with the two previous "if conditions" but then TS does not get that `axis.scaleType` can't be `band` or `point`.
      return;
    }
    const scaleType = axis.scaleType ?? 'linear';
    const axisExtremums = [axis.min ?? minData, axis.max ?? maxData];
    const rawTickNumber = (0, _useTicks.getTickNumber)((0, _extends2.default)({}, axis, {
      range,
      domain: axisExtremums
    }));
    const tickNumber = rawTickNumber / ((zoomRange[1] - zoomRange[0]) / 100);
    const zoomedRange = (0, _zoom.zoomScaleRange)(range, zoomRange);

    // TODO: move nice to prop? Disable when there is zoom?
    const scale = (0, _getScale.getScale)(scaleType, axisExtremums, zoomedRange).nice(rawTickNumber);
    const [minDomain, maxDomain] = scale.domain();
    const domain = [axis.min ?? minDomain, axis.max ?? maxDomain];
    completeAxis[axis.id] = (0, _extends2.default)({}, axis, {
      data,
      scaleType: scaleType,
      scale: scale.domain(domain),
      tickNumber,
      colorScale: axis.colorMap && (0, _colorScale.getColorScale)(axis.colorMap)
    });
  });
  return {
    axis: completeAxis,
    axisIds: allAxis.map(({
      id
    }) => id)
  };
}