@stringsync/vexml/dist/cjs/rendering/measure.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.Measure = void 0;
const util = __importStar(require("../util"));
const spatial_1 = require("../spatial");
const fragment_1 = require("./fragment");
const pen_1 = require("./pen");
class Measure {
    config;
    log;
    document;
    key;
    position;
    width;
    constructor(config, log, document, key, position, width) {
        this.config = config;
        this.log = log;
        this.document = document;
        this.key = key;
        this.position = position;
        this.width = width;
    }
    render() {
        const pen = new pen_1.Pen(this.position);
        const absoluteIndex = this.document.getAbsoluteMeasureIndex(this.key);
        const multiRestCount = this.document.getMeasureMultiRestCount(this.key);
        const fragmentRenders = this.renderFragments(pen);
        const jumps = this.document.getMeasure(this.key).jumps;
        const rect = spatial_1.Rect.merge(fragmentRenders.map((fragment) => fragment.rect));
        return {
            type: 'measure',
            key: this.key,
            rect,
            fragmentRenders,
            multiRestCount,
            absoluteIndex,
            jumps,
        };
    }
    renderFragments(pen) {
        const fragmentWidths = this.getFragmentWidths();
        const fragmentCount = this.document.getFragmentCount(this.key);
        const fragmentRenders = new Array();
        for (let fragmentIndex = 0; fragmentIndex < fragmentCount; fragmentIndex++) {
            const key = { ...this.key, fragmentIndex };
            const width = fragmentWidths?.at(fragmentIndex) ?? null;
            const fragmentRender = new fragment_1.Fragment(this.config, this.log, this.document, key, pen.position(), width).render();
            fragmentRenders.push(fragmentRender);
            // If the width is compressed too much, the voices will exceed the stave boundaries. To adhere to the model, we
            // move to the edge of _any_ stave's intrinsic rect.
            const staveRender = fragmentRender.partRenders.flatMap((p) => p.staveRenders).at(0);
            if (staveRender) {
                const upperRight = staveRender.intrinsicRect.topRight();
                pen.moveTo({ x: upperRight.x, y: pen.y });
            }
            else {
                // If this happens, the fragment staves may not be aligned. There could be a gap or overlap.
                this.log.warn('found a fragment render without staves, using fragment rect for spacing', key);
                pen.moveBy({ dx: fragmentRender.rect.w });
            }
        }
        return fragmentRenders;
    }
    getFragmentWidths() {
        if (this.width === null) {
            return null;
        }
        const fragmentCount = this.document.getFragmentCount(this.key);
        const widths = new Array();
        for (let fragmentIndex = 0; fragmentIndex < fragmentCount; fragmentIndex++) {
            const key = { ...this.key, fragmentIndex };
            const fragment = this.document.getFragment(key);
            if (typeof fragment.minWidth === 'number' && fragment.minWidth > 0) {
                widths.push(fragment.minWidth);
            }
            else {
                const fragmentRender = new fragment_1.Fragment(this.config, this.log, this.document, key, spatial_1.Point.origin(), null).render();
                widths.push(fragmentRender.rect.w);
            }
        }
        const total = util.sum(widths);
        return widths.map((w) => (w / total) * this.width);
    }
}
exports.Measure = Measure;