@stringsync/vexml/dist/cjs/playback/elementdescriber.js

MusicXML to Vexflow

"use strict";
var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
    if (k2 === undefined) k2 = k;
    var desc = Object.getOwnPropertyDescriptor(m, k);
    if (!desc || ("get" in desc ? !m.__esModule : desc.writable || desc.configurable)) {
      desc = { enumerable: true, get: function() { return m[k]; } };
    }
    Object.defineProperty(o, k2, desc);
}) : (function(o, m, k, k2) {
    if (k2 === undefined) k2 = k;
    o[k2] = m[k];
}));
var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
    Object.defineProperty(o, "default", { enumerable: true, value: v });
}) : function(o, v) {
    o["default"] = v;
});
var __importStar = (this && this.__importStar) || (function () {
    var ownKeys = function(o) {
        ownKeys = Object.getOwnPropertyNames || function (o) {
            var ar = [];
            for (var k in o) if (Object.prototype.hasOwnProperty.call(o, k)) ar[ar.length] = k;
            return ar;
        };
        return ownKeys(o);
    };
    return function (mod) {
        if (mod && mod.__esModule) return mod;
        var result = {};
        if (mod != null) for (var k = ownKeys(mod), i = 0; i < k.length; i++) if (k[i] !== "default") __createBinding(result, mod, k[i]);
        __setModuleDefault(result, mod);
        return result;
    };
})();
Object.defineProperty(exports, "__esModule", { value: true });
exports.ElementDescriber = void 0;
const util = __importStar(require("../util"));
/**
 * Describes playback elements in a human readable format.
 */
class ElementDescriber {
    elements;
    constructor(elements) {
        this.elements = elements;
    }
    static noop() {
        return new ElementDescriber(new Map());
    }
    static create(score, { partIndex }) {
        const elements = new Map();
        score
            .getMeasures()
            .flatMap((measure) => measure.getFragments())
            .flatMap((fragment) => fragment.getParts().at(partIndex) ?? [])
            .flatMap((part) => part.getStaves())
            .flatMap((stave) => stave.getVoices())
            .flatMap((voice) => voice.getEntries())
            .forEach((element, index) => {
            elements.set(element, index);
        });
        return new ElementDescriber(elements);
    }
    describe(element) {
        switch (element.name) {
            case 'part':
                return this.describePart(element);
            case 'system':
                return this.describeSystem(element);
            case 'note':
                return this.describeNote(element);
            case 'rest':
                return this.describeRest(element);
            case 'fragment':
                return this.describeFragment();
            case 'measure':
                return this.describeMeasure(element);
        }
    }
    describePart(part) {
        return `part(${part.getIndex()})`;
    }
    describeSystem(system) {
        return `system(${system.getIndex()})`;
    }
    describeMeasure(measure) {
        return `measure(${measure.getAbsoluteMeasureIndex()})`;
    }
    describeFragment() {
        return 'fragment';
    }
    describeRest(rest) {
        util.assert(this.elements.has(rest), 'Expected element to be indexed');
        const index = this.elements.get(rest);
        return `element(${index})`;
    }
    describeNote(note) {
        util.assert(this.elements.has(note), 'Expected element to be indexed');
        const index = this.elements.get(note);
        return `element(${index})`;
    }
}
exports.ElementDescriber = ElementDescriber;