@stringsync/vexml
Version:
MusicXML to Vexflow
111 lines (110 loc) • 3.78 kB
JavaScript
;
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.Bend = void 0;
const vexflow = __importStar(require("vexflow"));
const spatial_1 = require("../spatial");
const util_1 = require("../util");
const BEND_WIDTH = 32;
class Bend {
config;
log;
document;
key;
constructor(config, log, document, key) {
this.config = config;
this.log = log;
this.document = document;
this.key = key;
}
render() {
const voiceEntry = this.document.getVoiceEntry(this.key);
const phrases = new Array();
if (voiceEntry.type === 'note' || voiceEntry.type === 'chord') {
phrases.push(...voiceEntry.bends.map((bend) => this.toVexflowBendPhrase(bend)));
}
const vexflowModifiers = new Array();
if (phrases.length > 0) {
vexflowModifiers.push(new vexflow.Bend(phrases));
}
return {
type: 'bend',
key: this.key,
rect: spatial_1.Rect.empty(),
vexflowModifiers,
};
}
toVexflowBendPhrase(bend) {
const bendType = bend.bendType;
const semitones = bend.semitones;
let text = '';
if (semitones === 2) {
text = 'full';
}
else if (semitones === 1) {
text = '1/2';
}
else if (semitones === 0.5) {
text = '1/4';
}
else {
const { whole, remainder } = util_1.Fraction.fromDecimal(semitones).toMixed();
if (whole > 0 && remainder.numerator > 0) {
text = `${whole} ${remainder.numerator}/${remainder.denominator}`;
}
else if (whole > 0) {
text = `${whole}`;
}
else if (remainder.numerator > 0) {
text = `${remainder.numerator}/${remainder.denominator}`;
}
}
let type;
switch (bendType) {
case 'prebend':
// TODO: Support pre-bends when they are supported by VexFlow.
type = vexflow.Bend.UP;
break;
case 'release':
type = vexflow.Bend.DOWN;
break;
default:
type = vexflow.Bend.UP;
break;
}
return { text, type, width: BEND_WIDTH, drawWidth: BEND_WIDTH };
}
}
exports.Bend = Bend;