@nova-ui/charts
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Nova Charts is a library created to provide potential consumers with solutions for various data visualizations that conform with the Nova Design Language. It's designed to solve common patterns identified by UX designers, but also be very flexible so that
251 lines • 44.9 kB
JavaScript
// © 2022 SolarWinds Worldwide, LLC. All rights reserved.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to
// deal in the Software without restriction, including without limitation the
// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
// sell copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
import { max, min } from "d3-array";
import { local } from "d3-selection";
import defaultsDeep from "lodash/defaultsDeep";
import flatten from "lodash/flatten";
import isArray from "lodash/isArray";
import isUndefined from "lodash/isUndefined";
import uniq from "lodash/uniq";
import { DATA_POINT_INTERACTION_RESET, SELECT_DATA_POINT_EVENT, } from "../../constants";
import { convert } from "../../core/common/scales/helpers/convert";
import { EMPTY_CONTINUOUS_DOMAIN, isBandScale, } from "../../core/common/scales/types";
import { RenderLayerName } from "../types";
import { XYRenderer } from "../xy-renderer";
/**
* Renderer that is able to draw bar chart
*/
export class BarRenderer extends XYRenderer {
config;
/**
* Creates an instance of BarRenderer.
* @param {IBarRendererConfig} [config] Renderer configuration object
*/
constructor(config = {}) {
super(config);
this.config = config;
// setting default values to the properties that were not set by user
this.config = defaultsDeep(this.config, this.DEFAULT_CONFIG);
}
static THICK = 11; // 10px + 1 to compensate outline
static THIN = 3; // 2px + 1 to compensate outline
static MIN_BAR_SIZE_FOR_ICON = 10; // Min bar size to render an icon inside.
static MIN_BAR_THICKNESS = 2;
static BAR_RECT_CLASS = "bar";
DEFAULT_CONFIG = {
transitionDuration: 300,
padding: 1,
barClass: "bar-outline",
highlightStrategy: undefined,
pointerEvents: true,
enableMinBarThickness: true,
};
barContainerClass = "bar-container";
/** See {@link Renderer#draw} */
draw(renderSeries, rendererSubject) {
const target = renderSeries.containers[RenderLayerName.data];
const dataSeries = renderSeries.dataSeries;
const accessors = dataSeries.accessors;
const attrsGenerator = this.getAttrsGenerator(dataSeries, renderSeries.scales);
// We define here a local d3 variable to later re-use saved here data
const generatedAttrs = local();
// TODO: This is tricky: we should not draw anything for hidden data
// (seriesOffset will be undefined and this means we should provide empty array to d3).
// TODO fix this
const bars = target
.selectAll(`g.${this.barContainerClass}`)
.data(dataSeries.data);
bars.exit().remove();
const barContainers = bars
.enter()
.append("g")
.classed(this.barContainerClass, true);
barContainers.append("rect").on("click", (d, i) => {
this.emitBarClick(renderSeries, d, i, rendererSubject);
});
const getCssClass = (d, i) => (typeof accessors.data?.cssClass !== "undefined" &&
" " +
accessors.data.cssClass(d, i, dataSeries.data, dataSeries)) ||
"";
barContainers
.merge(bars)
.property(generatedAttrs, (d, i) => attrsGenerator(d, i)) // This saves attrsGenerator() output to local d3 variable generatedAttrs
.select("rect")
.attr("class", (d, i) => `${BarRenderer.BAR_RECT_CLASS} ${this.config.barClass}${this.config.pointerEvents ? " pointer-events" : ""}` + getCssClass(d, i))
.style("cursor", this.config.cursor ?? "")
.style("stroke-width", this.config?.strokeWidth ?? "")
.style("fill", (d, i) => accessors.data.color
? accessors.data.color(d, i, dataSeries.data, dataSeries)
: accessors.series.color?.(dataSeries.id, dataSeries))
.attrs(function () {
// @ts-ignore: Suppressing shadowed this and implicit any type error
return generatedAttrs.get(this);
})
.select("rect")
.style("fill", (d, i) => accessors.data.color
? accessors.data.color(d, i, dataSeries.data, dataSeries)
: accessors.series.color?.(dataSeries.id, dataSeries))
.attrs(generatedAttrs.get); // TODO: find a way to convert to ValueMap<>
if (accessors.data.marker) {
barContainers.append("g").classed("bar-icon", true);
barContainers
.merge(bars)
.select("g.bar-icon")
.html(function (d, i) {
const barSize = generatedAttrs.get(this);
if (!barSize ||
isUndefined(barSize?.height) ||
isUndefined(barSize?.width)) {
throw new Error("barSize is undefined");
}
const minBarSide = Math.min(barSize.height, barSize.width) - 1;
if (minBarSide >= BarRenderer.MIN_BAR_SIZE_FOR_ICON) {
return accessors.data.marker?.(d, i, dataSeries.data, dataSeries);
}
})
.attr("transform", function () {
const barAttrs = generatedAttrs.get(this);
if (!barAttrs ||
isUndefined(barAttrs?.height) ||
isUndefined(barAttrs?.width)) {
throw new Error("barAttrs is undefined");
}
return `translate(${barAttrs.x + barAttrs.width / 2}, ${barAttrs.y + barAttrs.height / 2})`;
});
}
}
/** See {@link Renderer#getDataPointIndex} */
getDataPointIndex(series, values, scales) {
return this.config.highlightStrategy
? this.config.highlightStrategy.getDataPointIndex(this, series, values, scales)
: DATA_POINT_INTERACTION_RESET;
}
/** See {@link Renderer#highlightDataPoint} */
highlightDataPoint(renderSeries, dataPointIndex, rendererSubject) {
if (this.config.highlightStrategy) {
this.config.highlightStrategy.highlightDataPoint(this, renderSeries, dataPointIndex, rendererSubject);
}
}
/** See {@link Renderer#getDataPointPosition} */
getDataPointPosition(dataSeries, index, scales) {
const d = dataSeries.data[index];
return d && this.getAttrsGenerator(dataSeries, scales)(d, index);
}
getDataPoint(renderSeries, data, i) {
return {
seriesId: renderSeries.dataSeries.id,
dataSeries: renderSeries.dataSeries,
index: i,
data: data,
position: data
? this.getDataPointPosition(renderSeries.dataSeries, i, renderSeries.scales)
: undefined,
};
}
filterDataByDomain(data) {
return data;
}
getDomain(data, dataSeries, scaleKey, scale) {
const accessors = dataSeries.accessors.data;
const accessorSuffix = scaleKey.toUpperCase();
const accessor = (name) => (d, i, arr) => accessors[name + accessorSuffix]?.(d, i, Array.from(arr), dataSeries);
if (scale.isContinuous()) {
return !data || data.length === 0
? EMPTY_CONTINUOUS_DOMAIN
: [min(data, accessor("start")), max(data, accessor("end"))];
}
else {
const values = data && data.length > 0 ? data.map(accessor("start")) : [];
const maxLength = Math.max(...values.map((d) => (isArray(d) ? d.length : -1)));
if (maxLength >= 0) {
return Array.from(Array(maxLength)).map((e, i) => {
const scalesDomains = values.map((d) => i < d.length ? d[i] : []);
return uniq(flatten(scalesDomains));
});
}
else {
return [uniq(values)];
}
}
}
emitBarClick(renderSeries, data, i, rendererSubject) {
rendererSubject.next({
eventName: SELECT_DATA_POINT_EVENT,
data: this.getDataPoint(renderSeries, data, i),
});
}
/**
* Returns function to generate attributes to draw bar from dataSeries that typically comes from preprocessor with help of accessors that
* are aware of how to access renderParameters to draw individual bars
* @param dataSeries Series to draw
* @param scales Scales used to draw bars
* Except of bars this is also used for highlights (which may have a bit different values)
*/
getAttrsGenerator(dataSeries, scales) {
const accessors = dataSeries.accessors.data;
return (d, i) => {
const x = this.getDimensions(accessors, d, i, dataSeries, scales.x, "X");
const y = this.getDimensions(accessors, d, i, dataSeries, scales.y, "Y");
return {
x: x.start,
width: x.thickness,
y: y.start,
height: y.thickness,
};
};
}
getDimensions(accessors, d, i, dataSeries, scale, accessorSuffix) {
let start;
let thickness;
const thicknessAccessor = accessors["thickness" + accessorSuffix];
const startAccessor = dataSeries.accessors.data["start" + accessorSuffix];
const endAccessor = dataSeries.accessors.data["end" + accessorSuffix];
thickness = thicknessAccessor?.(d, i, dataSeries.data, dataSeries);
if (!isUndefined(thickness)) {
if (!startAccessor) {
throw new Error("Can't compute dimensions");
}
start =
convert(scale, startAccessor(d, i, dataSeries.data, dataSeries), 0.5) -
thickness / 2;
}
else {
if (!startAccessor || !endAccessor) {
throw new Error("Can't compute dimensions");
}
const x1 = convert(scale, startAccessor(d, i, dataSeries.data, dataSeries), 0);
const x2 = convert(scale, endAccessor(d, i, dataSeries.data, dataSeries), 1);
start = Math.min(x1, x2);
thickness = Math.abs(x1 - x2);
if (isBandScale(scale)) {
if (isUndefined(this.config.padding)) {
throw new Error("Config is not defined");
}
start += this.config.padding;
thickness -= this.config.padding * 2;
}
if (this.config.enableMinBarThickness) {
thickness = Math.max(thickness, BarRenderer.MIN_BAR_THICKNESS);
}
}
return { start, thickness };
}
}
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© 2022 SolarWinds Worldwide, LLC. All rights reserved.\n//\n// Permission is hereby granted, free of charge, to any person obtaining a copy\n//  of this software and associated documentation files (the \"Software\"), to\n//  deal in the Software without restriction, including without limitation the\n//  rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n//  sell copies of the Software, and to permit persons to whom the Software is\n//  furnished to do so, subject to the following conditions:\n//\n// The above copyright notice and this permission notice shall be included in\n//  all copies or substantial portions of the Software.\n//\n// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n//  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n//  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n//  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n//  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n//  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n//  THE SOFTWARE.\n\nimport { max, min } from \"d3-array\";\nimport { local } from \"d3-selection\";\nimport defaultsDeep from \"lodash/defaultsDeep\";\nimport flatten from \"lodash/flatten\";\nimport isArray from \"lodash/isArray\";\nimport isUndefined from \"lodash/isUndefined\";\nimport uniq from \"lodash/uniq\";\nimport { Subject } from \"rxjs\";\n\nimport {\n    DATA_POINT_INTERACTION_RESET,\n    SELECT_DATA_POINT_EVENT,\n} from \"../../constants\";\nimport { convert } from \"../../core/common/scales/helpers/convert\";\nimport {\n    EMPTY_CONTINUOUS_DOMAIN,\n    isBandScale,\n    IScale,\n    Scales,\n} from \"../../core/common/scales/types\";\nimport {\n    IDataPoint,\n    IDataSeries,\n    IPosition,\n    IRendererEventPayload,\n} from \"../../core/common/types\";\nimport {\n    IRectangleAccessors,\n    IRectangleDataAccessors,\n} from \"../accessors/rectangle-accessors\";\nimport { IBarRendererConfig, IRenderSeries, RenderLayerName } from \"../types\";\nimport { XYRenderer } from \"../xy-renderer\";\n\n/**\n * Renderer that is able to draw bar chart\n */\nexport class BarRenderer extends XYRenderer<IRectangleAccessors> {\n    /**\n     * Creates an instance of BarRenderer.\n     * @param {IBarRendererConfig} [config] Renderer configuration object\n     */\n    constructor(public config: IBarRendererConfig = {}) {\n        super(config);\n        // setting default values to the properties that were not set by user\n        this.config = defaultsDeep(this.config, this.DEFAULT_CONFIG);\n    }\n\n    public static THICK = 11; // 10px + 1 to compensate outline\n    public static THIN = 3; // 2px + 1 to compensate outline\n    public static MIN_BAR_SIZE_FOR_ICON = 10; // Min bar size to render an icon inside.\n    public static MIN_BAR_THICKNESS = 2;\n    public static readonly BAR_RECT_CLASS = \"bar\";\n\n    public DEFAULT_CONFIG: IBarRendererConfig = {\n        transitionDuration: 300,\n        padding: 1,\n        barClass: \"bar-outline\",\n        highlightStrategy: undefined,\n        pointerEvents: true,\n        enableMinBarThickness: true,\n    };\n\n    public readonly barContainerClass = \"bar-container\";\n\n    /** See {@link Renderer#draw} */\n    public draw(\n        renderSeries: IRenderSeries<IRectangleAccessors>,\n        rendererSubject: Subject<IRendererEventPayload>\n    ): void {\n        const target = renderSeries.containers[RenderLayerName.data];\n        const dataSeries = renderSeries.dataSeries;\n        const accessors = dataSeries.accessors;\n\n        const attrsGenerator = this.getAttrsGenerator(\n            dataSeries,\n            renderSeries.scales\n        );\n\n        // We define here a local d3 variable to later re-use saved here data\n        const generatedAttrs = local<IPosition>();\n\n        // TODO: This is tricky: we should not draw anything for hidden data\n        // (seriesOffset will be undefined and this means we should provide empty array to d3).\n        // TODO fix this\n        const bars = target\n            .selectAll(`g.${this.barContainerClass}`)\n            .data(dataSeries.data);\n\n        bars.exit().remove();\n\n        const barContainers = bars\n            .enter()\n            .append(\"g\")\n            .classed(this.barContainerClass, true);\n\n        barContainers.append(\"rect\").on(\"click\", (d: any, i: number) => {\n            this.emitBarClick(renderSeries, d, i, rendererSubject);\n        });\n\n        const getCssClass = (d: any, i: number) =>\n            (typeof accessors.data?.cssClass !== \"undefined\" &&\n                \" \" +\n                    accessors.data.cssClass(\n                        d,\n                        i,\n                        dataSeries.data,\n                        dataSeries\n                    )) ||\n            \"\";\n\n        barContainers\n            .merge(bars as any)\n            .property(generatedAttrs, (d, i) => attrsGenerator(d, i)) // This saves attrsGenerator() output to local d3 variable generatedAttrs\n            .select<Element>(\"rect\")\n            .attr(\n                \"class\",\n                (d, i) =>\n                    `${BarRenderer.BAR_RECT_CLASS} ${this.config.barClass}${\n                        this.config.pointerEvents ? \" pointer-events\" : \"\"\n                    }` + getCssClass(d, i)\n            )\n            .style(\"cursor\", this.config.cursor ?? \"\")\n            .style(\"stroke-width\", this.config?.strokeWidth ?? \"\")\n            .style(\"fill\", (d: any, i: number) =>\n                accessors.data.color\n                    ? accessors.data.color(d, i, dataSeries.data, dataSeries)\n                    : accessors.series.color?.(dataSeries.id, dataSeries)\n            )\n            .attrs(function () {\n                // @ts-ignore: Suppressing shadowed this and implicit any type error\n                return generatedAttrs.get(this) as any;\n            })\n            .select<Element>(\"rect\")\n            .style(\"fill\", (d: any, i: number) =>\n                accessors.data.color\n                    ? accessors.data.color(d, i, dataSeries.data, dataSeries)\n                    : accessors.series.color?.(dataSeries.id, dataSeries)\n            )\n            .attrs(generatedAttrs.get as any); // TODO: find a way to convert to ValueMap<>\n\n        if (accessors.data.marker) {\n            barContainers.append(\"g\").classed(\"bar-icon\", true);\n\n            barContainers\n                .merge(bars as any)\n                .select<Element>(\"g.bar-icon\")\n                .html(function (d, i) {\n                    const barSize = generatedAttrs.get(this);\n\n                    if (\n                        !barSize ||\n                        isUndefined(barSize?.height) ||\n                        isUndefined(barSize?.width)\n                    ) {\n                        throw new Error(\"barSize is undefined\");\n                    }\n\n                    const minBarSide =\n                        Math.min(barSize.height, barSize.width) - 1;\n                    if (minBarSide >= BarRenderer.MIN_BAR_SIZE_FOR_ICON) {\n                        return accessors.data.marker?.(\n                            d,\n                            i,\n                            dataSeries.data,\n                            dataSeries\n                        );\n                    }\n                })\n                .attr(\"transform\", function (this) {\n                    const barAttrs = generatedAttrs.get(this);\n\n                    if (\n                        !barAttrs ||\n                        isUndefined(barAttrs?.height) ||\n                        isUndefined(barAttrs?.width)\n                    ) {\n                        throw new Error(\"barAttrs is undefined\");\n                    }\n\n                    return `translate(${\n                        barAttrs.x + barAttrs.width / 2\n                    }, ${barAttrs.y + barAttrs.height / 2})`;\n                });\n        }\n    }\n\n    /** See {@link Renderer#getDataPointIndex} */\n    public getDataPointIndex(\n        series: IDataSeries<IRectangleAccessors>,\n        values: { [p: string]: any },\n        scales: Scales\n    ): number {\n        return this.config.highlightStrategy\n            ? this.config.highlightStrategy.getDataPointIndex(\n                  this,\n                  series,\n                  values,\n                  scales\n              )\n            : DATA_POINT_INTERACTION_RESET;\n    }\n\n    /** See {@link Renderer#highlightDataPoint} */\n    public highlightDataPoint(\n        renderSeries: IRenderSeries<IRectangleAccessors>,\n        dataPointIndex: number,\n        rendererSubject: Subject<IRendererEventPayload>\n    ): void {\n        if (this.config.highlightStrategy) {\n            this.config.highlightStrategy.highlightDataPoint(\n                this,\n                renderSeries,\n                dataPointIndex,\n                rendererSubject\n            );\n        }\n    }\n\n    /** See {@link Renderer#getDataPointPosition} */\n    public getDataPointPosition(\n        dataSeries: IDataSeries<IRectangleAccessors>,\n        index: number,\n        scales: Scales\n    ): IPosition {\n        const d = dataSeries.data[index];\n        return d && this.getAttrsGenerator(dataSeries, scales)(d, index);\n    }\n\n    public getDataPoint(\n        renderSeries: IRenderSeries<IRectangleAccessors>,\n        data: any,\n        i: number\n    ): IDataPoint {\n        return {\n            seriesId: renderSeries.dataSeries.id,\n            dataSeries: renderSeries.dataSeries,\n            index: i,\n            data: data,\n            position: data\n                ? this.getDataPointPosition(\n                      renderSeries.dataSeries,\n                      i,\n                      renderSeries.scales\n                  )\n                : undefined,\n        };\n    }\n\n    public filterDataByDomain(data: any[]): any[] {\n        return data;\n    }\n\n    public getDomain(\n        data: any[],\n        dataSeries: IDataSeries<IRectangleAccessors>,\n        scaleKey: string,\n        scale: IScale<any>\n    ): any[] {\n        const accessors = dataSeries.accessors.data;\n        const accessorSuffix = scaleKey.toUpperCase();\n        const accessor =\n            (name: string) => (d: any, i: number, arr: ArrayLike<unknown>) =>\n                accessors[name + accessorSuffix]?.(\n                    d,\n                    i,\n                    Array.from(arr),\n                    dataSeries\n                );\n        if (scale.isContinuous()) {\n            return !data || data.length === 0\n                ? EMPTY_CONTINUOUS_DOMAIN\n                : [min(data, accessor(\"start\")), max(data, accessor(\"end\"))];\n        } else {\n            const values =\n                data && data.length > 0 ? data.map(accessor(\"start\")) : [];\n            const maxLength = Math.max(\n                ...values.map((d) => (isArray(d) ? d.length : -1))\n            );\n            if (maxLength >= 0) {\n                return Array.from(Array(maxLength)).map((e, i) => {\n                    const scalesDomains = values.map((d) =>\n                        i < d.length ? d[i] : []\n                    );\n                    return uniq(flatten(scalesDomains));\n                });\n            } else {\n                return [uniq(values)];\n            }\n        }\n    }\n\n    protected emitBarClick(\n        renderSeries: IRenderSeries<IRectangleAccessors>,\n        data: any,\n        i: number,\n        rendererSubject: Subject<IRendererEventPayload>\n    ): void {\n        rendererSubject.next({\n            eventName: SELECT_DATA_POINT_EVENT,\n            data: this.getDataPoint(renderSeries, data, i),\n        });\n    }\n\n    /**\n     * Returns function to generate attributes to draw bar from dataSeries that typically comes from preprocessor with help of accessors that\n     * are aware of how to access renderParameters to draw individual bars\n     * @param dataSeries Series to draw\n     * @param scales Scales used to draw bars\n     * Except of bars this is also used for highlights (which may have a bit different values)\n     */\n    protected getAttrsGenerator(\n        dataSeries: IDataSeries<IRectangleAccessors>,\n        scales: Scales\n    ): (d: any, i: number) => IPosition {\n        const accessors = dataSeries.accessors.data;\n        return (d: any, i: number): IPosition => {\n            const x = this.getDimensions(\n                accessors,\n                d,\n                i,\n                dataSeries,\n                scales.x,\n                \"X\"\n            );\n            const y = this.getDimensions(\n                accessors,\n                d,\n                i,\n                dataSeries,\n                scales.y,\n                \"Y\"\n            );\n\n            return {\n                x: x.start,\n                width: x.thickness,\n                y: y.start,\n                height: y.thickness,\n            };\n        };\n    }\n\n    private getDimensions(\n        accessors: IRectangleDataAccessors,\n        d: any,\n        i: number,\n        dataSeries: IDataSeries<IRectangleAccessors>,\n        scale: IScale<any>,\n        accessorSuffix: string\n    ): { thickness: number; start: number } {\n        let start: number;\n        let thickness: number;\n\n        const thicknessAccessor = accessors[\"thickness\" + accessorSuffix];\n        const startAccessor =\n            dataSeries.accessors.data[\"start\" + accessorSuffix];\n        const endAccessor = dataSeries.accessors.data[\"end\" + accessorSuffix];\n        thickness = thicknessAccessor?.(d, i, dataSeries.data, dataSeries);\n\n        if (!isUndefined(thickness)) {\n            if (!startAccessor) {\n                throw new Error(\"Can't compute dimensions\");\n            }\n\n            start =\n                convert(\n                    scale,\n                    startAccessor(d, i, dataSeries.data, dataSeries),\n                    0.5\n                ) -\n                thickness / 2;\n        } else {\n            if (!startAccessor || !endAccessor) {\n                throw new Error(\"Can't compute dimensions\");\n            }\n\n            const x1 = convert(\n                scale,\n                startAccessor(d, i, dataSeries.data, dataSeries),\n                0\n            );\n            const x2 = convert(\n                scale,\n                endAccessor(d, i, dataSeries.data, dataSeries),\n                1\n            );\n\n            start = Math.min(x1, x2);\n            thickness = Math.abs(x1 - x2);\n\n            if (isBandScale(scale)) {\n                if (isUndefined(this.config.padding)) {\n                    throw new Error(\"Config is not defined\");\n                }\n                start += this.config.padding;\n                thickness -= this.config.padding * 2;\n            }\n\n            if (this.config.enableMinBarThickness) {\n                thickness = Math.max(thickness, BarRenderer.MIN_BAR_THICKNESS);\n            }\n        }\n        return { start, thickness };\n    }\n}\n"]}