AlphaTab.Importer.MusicXml2Importer.ParseKey C# (CSharp) Method

        private void ParseKey(IXmlNode element, MasterBar masterBar)
        {
            int fifths = int.MinValue;
            int keyStep = int.MinValue;
            int keyAlter = int.MinValue;

            element.IterateChildren(c =>
            {
                if (c.NodeType == XmlNodeType.Element)
                {
                    switch (c.LocalName)
                    {
                        case "fifths":
                            fifths = Std.ParseInt(Std.GetNodeValue(c));
                            break;
                        case "key-step":
                            keyStep = Std.ParseInt(Std.GetNodeValue(c));
                            break;
                        case "key-alter":
                            keyAlter = Std.ParseInt(Std.GetNodeValue(c));
                            break;
                    }
                }
            });

            if (fifths != int.MinValue)
            {
                // TODO: check if this is conrrect
                masterBar.KeySignature = fifths;
            }
            else
            {
                // TODO: map keyStep/keyAlter to internal keysignature
            }
        }