satie
Version:
A sheet music renderer for the web
50 lines (49 loc) • 2.15 kB
JavaScript
/**
* This file is part of Satie music engraver <https://github.com/jnetterf/satie>.
* Copyright (C) Joshua Netterfield <joshua.ca> 2015 - present.
*
* Satie is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* Satie is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with Satie. If not, see <http://www.gnu.org/licenses/>.
*/
;
var lodash_1 = require("lodash");
Object.defineProperty(exports, "__esModule", { value: true });
exports.default = voiceStaffStemDirection;
function voiceStaffStemDirection(measures) {
lodash_1.forEach(measures, function (measure) {
lodash_1.forEach(measure.parts, function (part) {
var staffToVoices = {};
lodash_1.forEach(part.voices, function (voice) {
lodash_1.forEach(voice, function (model) {
if (model.staffIdx) {
staffToVoices[model.staffIdx] = staffToVoices[model.staffIdx] || {};
var voices = staffToVoices[model.staffIdx];
voices[voice.owner] = staffToVoices[model.staffIdx][voice.owner] || [];
voices[voice.owner].push(model);
}
});
});
lodash_1.forEach(staffToVoices, function (staff) {
if (Object.keys(staff).length > 1) {
lodash_1.forEach(staff[1], function (els) {
els.satieDirection = 1;
});
lodash_1.forEach(staff[2], function (els) {
els.satieDirection = -1;
});
}
});
});
});
return measures;
}