@stringsync/vexml/dist/esm/rendering/pedal.js

MusicXML to Vexflow

import * as vexflow from 'vexflow';
import * as util from '../util';
import { Rect } from '../spatial';
export class Pedal {
    config;
    log;
    document;
    key;
    registry;
    constructor(config, log, document, key, registry) {
        this.config = config;
        this.log = log;
        this.document = document;
        this.key = key;
        this.registry = registry;
    }
    render() {
        const pedal = this.document.getPedal(this.key);
        const renders = this.registry.get(pedal.id).filter((r) => r.type === 'note' || r.type === 'rest');
        const vexflowPedalMarkings = this.renderVexflowPedalMarkings(renders);
        let vexflowPedalMarkingType;
        switch (pedal.pedalType) {
            case 'text':
                vexflowPedalMarkingType = vexflow.PedalMarking.type.TEXT;
                break;
            case 'bracket':
                vexflowPedalMarkingType = vexflow.PedalMarking.type.BRACKET;
                break;
            case 'mixed':
                vexflowPedalMarkingType = vexflow.PedalMarking.type.MIXED;
                break;
        }
        for (const vexflowPedalMarking of vexflowPedalMarkings) {
            vexflowPedalMarking.setType(vexflowPedalMarkingType);
        }
        return {
            type: 'pedal',
            key: this.key,
            rect: Rect.empty(),
            vexflowPedalMarkings,
        };
    }
    renderVexflowPedalMarkings(renders) {
        const vexflowPedalMarkings = new Array();
        const systemIndexes = util.unique(renders.map((n) => n.key.systemIndex));
        for (const systemIndex of systemIndexes) {
            const systemScopedRenders = renders.filter((n) => n.key.systemIndex === systemIndex);
            if (systemScopedRenders.length > 1) {
                const vexflowPedalMarking = this.renderSinglePedalMarking(systemScopedRenders);
                vexflowPedalMarkings.push(vexflowPedalMarking);
            }
        }
        return vexflowPedalMarkings;
    }
    renderSinglePedalMarking(renders) {
        const vexflowStaveNotes = new Array();
        for (const noteRender of renders) {
            const vexflowNote = noteRender.vexflowNote;
            if (!(vexflowNote instanceof vexflow.StaveNote)) {
                continue;
            }
            const voiceEntry = this.document.getVoiceEntry(noteRender.key);
            if (voiceEntry.type === 'note' && voiceEntry.pedalMark?.pedalMarkType === 'change') {
                // This is required for vexflow to show pedal changes.
                vexflowStaveNotes.push(vexflowNote, vexflowNote);
            }
            else {
                vexflowStaveNotes.push(vexflowNote);
            }
        }
        vexflowStaveNotes.sort((a, b) => a.getAbsoluteX() - b.getAbsoluteX());
        return new vexflow.PedalMarking(vexflowStaveNotes);
    }
}