@amcharts/amcharts5/.internal/charts/map/MapSankeyNodes.js

amCharts 5

import { Series } from "../../core/render/Series";
import { MapPolygon } from "./MapPolygon";
import { Template } from "../../core/util/Template";
import { ListTemplate } from "../../core/util/List";
/**
 * Holds instances of nodes for a [[MapSankeySeries]].
 *
 * @see {@link https://www.amcharts.com/docs/v5/charts/map-chart/map-sankey-series/} for more info
 * @since 5.17.0
 * @important
 */
export class MapSankeyNodes extends Series {
    constructor() {
        super(...arguments);
        /**
         * Flag indicating user has explicitly set node data.
         * Prevents auto-clearing of nodes when link data changes.
         * @ignore
         */
        this._userDataSet = false;
        /**
         * A [[ListTemplate]] of all node polygons.
         *
         * `mapPolygons.template` can be used to configure node appearance.
         *
         * @default new ListTemplate<MapPolygon>
         */
        this.mapPolygons = this.addDisposer(new ListTemplate(Template.new({}), () => MapPolygon._new(this._root, {}, [this.mapPolygons.template])));
    }
    /**
     * @ignore
     */
    _applyThemes(force = false) {
        const colors = this.get("colors");
        if (colors) {
            colors.reset();
        }
        return super._applyThemes(force);
    }
    /**
     * @ignore
     */
    _afterNew() {
        this.fields.push("name", "fill", "longitude", "latitude");
        this._setRawDefault("idField", "id");
        this._setRawDefault("nameField", "name");
        this._setRawDefault("fillField", "fill");
        this._setRawDefault("longitudeField", "longitude");
        this._setRawDefault("latitudeField", "latitude");
        super._afterNew();
    }
    /**
     * @ignore
     */
    _onDataClear() {
        const colors = this.get("colors");
        if (colors) {
            colors.reset();
        }
        this._userDataSet = true;
    }
    /**
     * Processes a newly added node data item, assigning a fill color
     * and creating its map polygon.
     *
     * @param dataItem  Data item to process
     */
    processDataItem(dataItem) {
        super.processDataItem(dataItem);
        // Auto-assign fill from ColorSet if not provided
        if (dataItem.get("fill") == null) {
            const colors = this.get("colors");
            if (colors) {
                dataItem.setRaw("fill", colors.next());
            }
        }
        // Create MapPolygon visual
        const mapPolygon = this.makeMapPolygon(dataItem);
        dataItem.setRaw("mapPolygon", mapPolygon);
    }
    /**
     * @ignore
     */
    _updateNodeColor(dataItem) {
        const mapPolygon = dataItem.get("mapPolygon");
        if (mapPolygon) {
            mapPolygon.set("fill", dataItem.get("fill"));
        }
    }
    /**
     * Creates a MapPolygon visual for a node data item.
     * @ignore
     */
    makeMapPolygon(dataItem) {
        const mapPolygon = this.mapPolygons.make();
        this.mapPolygons.push(mapPolygon);
        mapPolygon._setDataItem(dataItem);
        // Set series to parent MapSankeySeries for projection access
        if (this.flow) {
            mapPolygon.series = this.flow;
            this.flow.children.push(mapPolygon);
        }
        // Apply fill from data item and listen for changes
        const fill = dataItem.get("fill");
        if (fill) {
            mapPolygon._setSoft("fill", fill);
        }
        dataItem.on("fill", () => {
            this._updateNodeColor(dataItem);
        });
        return mapPolygon;
    }
    /**
     * Add an incoming link to a node data item.
     * @ignore
     */
    addIncomingLink(dataItem, link) {
        let incoming = dataItem.get("incomingLinks");
        if (!incoming) {
            incoming = [];
            dataItem.setRaw("incomingLinks", incoming);
        }
        incoming.push(link);
    }
    /**
     * Add an outgoing link to a node data item.
     * @ignore
     */
    addOutgoingLink(dataItem, link) {
        let outgoing = dataItem.get("outgoingLinks");
        if (!outgoing) {
            outgoing = [];
            dataItem.setRaw("outgoingLinks", outgoing);
        }
        outgoing.push(link);
    }
    /**
     * @ignore
     */
    disposeDataItem(dataItem) {
        super.disposeDataItem(dataItem);
        const mapPolygon = dataItem.get("mapPolygon");
        if (mapPolygon) {
            this.mapPolygons.removeValue(mapPolygon);
            mapPolygon.dispose();
        }
    }
}
MapSankeyNodes.className = "MapSankeyNodes";
MapSankeyNodes.classNames = Series.classNames.concat([MapSankeyNodes.className]);
//# sourceMappingURL=MapSankeyNodes.js.map