@nova-ui/charts
Version:
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
171 lines • 26.6 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 cloneDeep from "lodash/cloneDeep";
import defaultsDeep from "lodash/defaultsDeep";
import isUndefined from "lodash/isUndefined";
import { Subject } from "rxjs";
import { takeUntil } from "rxjs/operators";
import { GAUGE_LABELS_CONTAINER_CLASS, GAUGE_LABEL_FORMATTER_NAME_DEFAULT, GAUGE_THRESHOLD_LABEL_CLASS, } from "./constants";
import { MOUSE_ACTIVE_EVENT, STANDARD_RENDER_LAYERS } from "../../../constants";
import { GAUGE_THRESHOLD_MARKERS_SERIES_ID } from "../../../gauge/constants";
import { RenderLayerName } from "../../../renderers/types";
import { ChartPlugin } from "../../common/chart-plugin";
import { LinearScale } from "../../common/scales/linear-scale";
/**
* A chart plugin that handles the rendering of labels for a donut gauge
*/
export class LinearGaugeLabelsPlugin extends ChartPlugin {
config;
/** The default plugin configuration */
DEFAULT_CONFIG = {
padding: 5,
formatterName: GAUGE_LABEL_FORMATTER_NAME_DEFAULT,
disableThresholdLabels: false,
flippedLabels: false,
};
destroy$ = new Subject();
lasagnaLayer;
isHorizontal = true;
thresholdsSeries;
constructor(config = {}) {
super();
this.config = config;
this.config = defaultsDeep(this.config, this.DEFAULT_CONFIG);
}
initialize() {
this.lasagnaLayer = this.chart.getGrid().getLasagna().addLayer({
name: GAUGE_LABELS_CONTAINER_CLASS,
order: STANDARD_RENDER_LAYERS[RenderLayerName.data].order,
clipped: false,
});
this.chart
.getEventBus()
.getStream(MOUSE_ACTIVE_EVENT)
.pipe(takeUntil(this.destroy$))
.subscribe((event) => {
const gaugeThresholdLabelsGroup = this.lasagnaLayer.select(`.${GAUGE_LABELS_CONTAINER_CLASS}`);
if (!gaugeThresholdLabelsGroup.empty()) {
gaugeThresholdLabelsGroup.style("opacity", event.data ? 1 : 0);
}
});
}
update() {
this.updateData();
this.drawThresholdLabels();
}
updateDimensions() {
this.updateData();
this.drawThresholdLabels();
}
destroy() {
if (this.destroy$) {
this.destroy$.next();
this.destroy$.complete();
}
}
updateData() {
this.thresholdsSeries = this.chart
.getDataManager()
.chartSeriesSet.find((series) => series.id === GAUGE_THRESHOLD_MARKERS_SERIES_ID);
this.isHorizontal =
this.thresholdsSeries?.scales.x instanceof LinearScale;
}
drawThresholdLabels() {
if (isUndefined(this.thresholdsSeries)) {
console.warn("Threshold series is undefined. As a result, threshold labels for the linear gauge will not be rendered.");
return;
}
let gaugeThresholdsLabelsGroup = this.lasagnaLayer.select(`.${GAUGE_LABELS_CONTAINER_CLASS}`);
if (gaugeThresholdsLabelsGroup.empty()) {
gaugeThresholdsLabelsGroup = this.lasagnaLayer
.append("svg:g")
.attr("class", GAUGE_LABELS_CONTAINER_CLASS)
.style("opacity", 0);
}
const data = cloneDeep(this.config.disableThresholdLabels
? []
: this.thresholdsSeries?.data);
if (isUndefined(data)) {
throw new Error("Gauge threshold series data is undefined");
}
// last value in the thresholds series is the max value of the gauge (needed by RadialGaugeThresholdsRenderer).
// removing this value to avoid rendering a label for it
data.pop();
const formatter = this.thresholdsSeries?.scales[this.isHorizontal ? "x" : "y"]
.formatters[this.config.formatterName] ?? ((d) => d);
const labelSelection = gaugeThresholdsLabelsGroup
.selectAll(`text.${GAUGE_THRESHOLD_LABEL_CLASS}`)
.data(data);
labelSelection.exit().remove();
labelSelection
.enter()
.append("text")
.attr("class", GAUGE_THRESHOLD_LABEL_CLASS)
.merge(labelSelection)
.attr("transform", (d, i) => `translate(${this.xTranslate(d, i)}, ${this.yTranslate(d, i)})`)
.attr("title", (d, i) => formatter(data[i].value))
.style("text-anchor", (d) => this.getTextAnchor())
.style("dominant-baseline", (d) => this.getAlignmentBaseline())
.text((d, i) => formatter(data[i].value));
}
xTranslate = (d, i) => {
if (this.isHorizontal) {
const thresholdsSeries = this
.thresholdsSeries;
const value = this.thresholdsSeries?.accessors?.data?.value?.(d, i, thresholdsSeries?.data, thresholdsSeries);
return this.thresholdsSeries?.scales.x.convert(value);
}
return this.getLabelOffset();
};
yTranslate = (d, i) => {
if (this.isHorizontal) {
return this.getLabelOffset();
}
const thresholdsSeries = this
.thresholdsSeries;
const value = this.thresholdsSeries?.accessors?.data?.value?.(d, i, thresholdsSeries?.data, thresholdsSeries);
return this.thresholdsSeries?.scales.y.convert(value);
};
getLabelOffset() {
let labelStart = 0;
if (!this.config.flippedLabels) {
const gridDimensions = this.chart.getGrid().config().dimension;
labelStart = this.isHorizontal
? gridDimensions.height()
: gridDimensions.width();
}
let padding = this.config.padding;
padding = this.config.flippedLabels ? -padding : padding;
return labelStart + padding;
}
getTextAnchor() {
if (this.isHorizontal) {
return "middle";
}
return this.config.flippedLabels ? "end" : "start";
}
getAlignmentBaseline() {
if (this.isHorizontal) {
return this.config.flippedLabels ? "text-after-edge" : "hanging";
}
return "central";
}
}
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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 cloneDeep from \"lodash/cloneDeep\";\nimport defaultsDeep from \"lodash/defaultsDeep\";\nimport isUndefined from \"lodash/isUndefined\";\nimport { Subject } from \"rxjs\";\nimport { takeUntil } from \"rxjs/operators\";\n\nimport {\n    GAUGE_LABELS_CONTAINER_CLASS,\n    GAUGE_LABEL_FORMATTER_NAME_DEFAULT,\n    GAUGE_THRESHOLD_LABEL_CLASS,\n} from \"./constants\";\nimport { IGaugeLabelsPluginConfig } from \"./types\";\nimport { MOUSE_ACTIVE_EVENT, STANDARD_RENDER_LAYERS } from \"../../../constants\";\nimport { GAUGE_THRESHOLD_MARKERS_SERIES_ID } from \"../../../gauge/constants\";\nimport { RenderLayerName } from \"../../../renderers/types\";\nimport { ChartPlugin } from \"../../common/chart-plugin\";\nimport { LinearScale } from \"../../common/scales/linear-scale\";\nimport {\n    D3Selection,\n    IAccessors,\n    IChartEvent,\n    IChartSeries,\n    IDataSeries,\n} from \"../../common/types\";\n\n/**\n * A chart plugin that handles the rendering of labels for a donut gauge\n */\nexport class LinearGaugeLabelsPlugin extends ChartPlugin {\n    /** The default plugin configuration */\n    public DEFAULT_CONFIG: IGaugeLabelsPluginConfig = {\n        padding: 5,\n        formatterName: GAUGE_LABEL_FORMATTER_NAME_DEFAULT,\n        disableThresholdLabels: false,\n        flippedLabels: false,\n    };\n\n    private readonly destroy$ = new Subject<void>();\n    private lasagnaLayer: D3Selection<SVGElement>;\n    private isHorizontal = true;\n    private thresholdsSeries: IChartSeries<IAccessors<any>> | undefined;\n\n    constructor(public config: IGaugeLabelsPluginConfig = {}) {\n        super();\n        this.config = defaultsDeep(this.config, this.DEFAULT_CONFIG);\n    }\n\n    public initialize(): void {\n        this.lasagnaLayer = this.chart.getGrid().getLasagna().addLayer({\n            name: GAUGE_LABELS_CONTAINER_CLASS,\n            order: STANDARD_RENDER_LAYERS[RenderLayerName.data].order,\n            clipped: false,\n        });\n\n        this.chart\n            .getEventBus()\n            .getStream(MOUSE_ACTIVE_EVENT as string)\n            .pipe(takeUntil(this.destroy$))\n            .subscribe((event: IChartEvent) => {\n                const gaugeThresholdLabelsGroup = this.lasagnaLayer.select(\n                    `.${GAUGE_LABELS_CONTAINER_CLASS}`\n                );\n                if (!gaugeThresholdLabelsGroup.empty()) {\n                    gaugeThresholdLabelsGroup.style(\n                        \"opacity\",\n                        event.data ? 1 : 0\n                    );\n                }\n            });\n    }\n\n    public update(): void {\n        this.updateData();\n        this.drawThresholdLabels();\n    }\n\n    public updateDimensions(): void {\n        this.updateData();\n        this.drawThresholdLabels();\n    }\n\n    public destroy(): void {\n        if (this.destroy$) {\n            this.destroy$.next();\n            this.destroy$.complete();\n        }\n    }\n\n    private updateData() {\n        this.thresholdsSeries = this.chart\n            .getDataManager()\n            .chartSeriesSet.find(\n                (series: IChartSeries<IAccessors<any>>) =>\n                    series.id === GAUGE_THRESHOLD_MARKERS_SERIES_ID\n            );\n        this.isHorizontal =\n            this.thresholdsSeries?.scales.x instanceof LinearScale;\n    }\n\n    private drawThresholdLabels() {\n        if (isUndefined(this.thresholdsSeries)) {\n            console.warn(\n                \"Threshold series is undefined. As a result, threshold labels for the linear gauge will not be rendered.\"\n            );\n            return;\n        }\n\n        let gaugeThresholdsLabelsGroup = this.lasagnaLayer.select(\n            `.${GAUGE_LABELS_CONTAINER_CLASS}`\n        );\n        if (gaugeThresholdsLabelsGroup.empty()) {\n            gaugeThresholdsLabelsGroup = this.lasagnaLayer\n                .append(\"svg:g\")\n                .attr(\"class\", GAUGE_LABELS_CONTAINER_CLASS)\n                .style(\"opacity\", 0);\n        }\n\n        const data = cloneDeep(\n            this.config.disableThresholdLabels\n                ? []\n                : this.thresholdsSeries?.data\n        );\n        if (isUndefined(data)) {\n            throw new Error(\"Gauge threshold series data is undefined\");\n        }\n\n        // last value in the thresholds series is the max value of the gauge (needed by RadialGaugeThresholdsRenderer).\n        // removing this value to avoid rendering a label for it\n        data.pop();\n\n        const formatter =\n            this.thresholdsSeries?.scales[this.isHorizontal ? \"x\" : \"y\"]\n                .formatters[this.config.formatterName as string] ?? ((d) => d);\n        const labelSelection = gaugeThresholdsLabelsGroup\n            .selectAll(`text.${GAUGE_THRESHOLD_LABEL_CLASS}`)\n            .data(data);\n\n        labelSelection.exit().remove();\n        labelSelection\n            .enter()\n            .append(\"text\")\n            .attr(\"class\", GAUGE_THRESHOLD_LABEL_CLASS)\n            .merge(labelSelection as any)\n            .attr(\n                \"transform\",\n                (d, i) =>\n                    `translate(${this.xTranslate(d, i)}, ${this.yTranslate(\n                        d,\n                        i\n                    )})`\n            )\n            .attr(\"title\", (d, i) => formatter(data[i].value))\n            .style(\"text-anchor\", (d) => this.getTextAnchor())\n            .style(\"dominant-baseline\", (d) => this.getAlignmentBaseline())\n            .text((d, i) => formatter(data[i].value));\n    }\n\n    private xTranslate = (d: any, i: number) => {\n        if (this.isHorizontal) {\n            const thresholdsSeries = this\n                .thresholdsSeries as IDataSeries<IAccessors>;\n            const value = this.thresholdsSeries?.accessors?.data?.value?.(\n                d,\n                i,\n                thresholdsSeries?.data as any[],\n                thresholdsSeries\n            );\n            return this.thresholdsSeries?.scales.x.convert(value);\n        }\n\n        return this.getLabelOffset();\n    };\n\n    private yTranslate = (d: any, i: number) => {\n        if (this.isHorizontal) {\n            return this.getLabelOffset();\n        }\n\n        const thresholdsSeries = this\n            .thresholdsSeries as IDataSeries<IAccessors>;\n        const value = this.thresholdsSeries?.accessors?.data?.value?.(\n            d,\n            i,\n            thresholdsSeries?.data as any[],\n            thresholdsSeries\n        );\n        return this.thresholdsSeries?.scales.y.convert(value);\n    };\n\n    private getLabelOffset() {\n        let labelStart = 0;\n        if (!this.config.flippedLabels) {\n            const gridDimensions = this.chart.getGrid().config().dimension;\n            labelStart = this.isHorizontal\n                ? gridDimensions.height()\n                : gridDimensions.width();\n        }\n        let padding = this.config.padding as number;\n        padding = this.config.flippedLabels ? -padding : padding;\n        return labelStart + padding;\n    }\n\n    private getTextAnchor(): string {\n        if (this.isHorizontal) {\n            return \"middle\";\n        }\n\n        return this.config.flippedLabels ? \"end\" : \"start\";\n    }\n\n    private getAlignmentBaseline(): string {\n        if (this.isHorizontal) {\n            return this.config.flippedLabels ? \"text-after-edge\" : \"hanging\";\n        }\n\n        return \"central\";\n    }\n}\n"]}