@stringsync/vexml/dist/esm/parsing/musicxml/octaveshift.js

MusicXML to Vexflow

export class OctaveShift {
    config;
    log;
    phase;
    size;
    constructor(config, log, phase, size) {
        this.config = config;
        this.log = log;
        this.phase = phase;
        this.size = size;
    }
    static create(config, log, musicXML) {
        const type = musicXML.octaveShift.getType();
        const factor = type === 'down' ? -1 : 1;
        const size = factor * musicXML.octaveShift.getSize();
        let phase;
        switch (type) {
            case 'down':
                phase = 'start';
                break;
            case 'up':
                phase = 'start';
                break;
            case 'stop':
                phase = 'stop';
                break;
            default:
                phase = 'continue';
                break;
        }
        return new OctaveShift(config, log, phase, size);
    }
    parse(voiceCtx) {
        if (this.phase === 'start') {
            voiceCtx.beginOctaveShift(this.size);
        }
        if (this.phase === 'stop') {
            voiceCtx.closeOctaveShift();
        }
    }
}