@antv/t8/lib/charts/rank/index.js

T8 is a text visualization solution for unstructured data within the AntV technology stack, and it is a declarative T8 markdown syntax that can be used to describe the content of data interpretation reports.

'use strict';

require('../utils/selection.js');
var scales = require('../utils/scales.js');
require('tslib');
var createSvg = require('../utils/createSvg.js');
var getElementFontSize = require('../../utils/getElementFontSize.js');

// Chart colors
var BAR_FILL_COLOR = '#5B8FF9';
var SCALE_ADJUST = 2;
/**
 * Get the gap between bars
 * @param data - The data array
 * @returns The gap between bars
 */
var getGap = function (data) {
    if (data.length < 3)
        return 4;
    else if (data.length >= 3 && data.length < 5)
        return 2;
    else
        return 1;
};
/**
 * Renders a rank chart with bars
 * @param container - The container element
 * @param config - The rank chart configuration
 * @param drawSvgCallback - A callback function to draw the SVG on the chart
 */
var renderRankChart = function (container, config, paragraphType, themeSeedToken) {
    var _a = config.data, data = _a === void 0 ? [] : _a, drawSvgCallback = config.drawSvgCallback;
    if (!data.length)
        return;
    var chartSize = getElementFontSize.getElementFontSize(paragraphType, themeSeedToken);
    // Clear existing content
    container.innerHTML = '';
    // Get dimensions
    var height = chartSize;
    var width = chartSize * 2;
    // If there are more than 5 bars, reduce the gap between bars to 1px
    var gap = getGap(data);
    var barWidth = (width - gap * (data.length - 1)) / data.length;
    // Create SVG
    var svg = createSvg.createSvg(container, width, height);
    // Create scales
    var xScale = scales.scaleLinear([0, data.length - 1], [0, width - barWidth]);
    var maxValue = Math.max.apply(Math, data);
    var minValue = Math.min.apply(Math, data);
    var yScale = scales.scaleLinear([minValue, maxValue], [height - SCALE_ADJUST, SCALE_ADJUST]);
    // Draw bars
    data.forEach(function (value, index) {
        var x = xScale(index);
        var y = yScale(value);
        svg
            .append('rect')
            .attr('class', 'bar')
            .attr('x', x)
            .attr('y', y)
            .attr('width', barWidth)
            .attr('height', height - y)
            .attr('fill', BAR_FILL_COLOR)
            .style('cursor', 'pointer');
    });
    drawSvgCallback === null || drawSvgCallback === void 0 ? void 0 : drawSvgCallback(svg, xScale, yScale);
};

exports.renderRankChart = renderRankChart;
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