using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Linq;
using System.Runtime.CompilerServices;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Shapes;

namespace QuikDawEditor
{
    public partial class QuantizeWindow : Window, INotifyPropertyChanged
    {

        public event PropertyChangedEventHandler PropertyChanged;
        private void NotifyPropertyChanged([CallerMemberName] String propertyName = "") { if (PropertyChanged != null) { PropertyChanged(this, new PropertyChangedEventArgs(propertyName)); } }

        public QuantizeWindow()
        {
            InitializeComponent();
            DataContext = this;

            snapTo = 0.125M;  //Eighth note default


        }

        internal decimal snapTo = 2M;
        internal string Result = "Cancel";

        private bool _ApplyToSelection = false;
        public bool ApplyToSelection { get { return _ApplyToSelection;  } set { _ApplyToSelection = value; NotifyPropertyChanged(nameof(ApplyToSelection)); } }

        private void QuantizeSnapCB_DropDownClosed(object sender, EventArgs e)
        {

            ComboBox snaptocb = (ComboBox)sender;

            if (snaptocb.SelectedIndex < 1)
                snapTo = 2;
            else
            {
                if (snaptocb.SelectedIndex > 5)
                { //Triplets
                    decimal div = 1 / (decimal)Math.Pow(2, snaptocb.SelectedIndex - 5);
                    snapTo = 1M / (3M / div);
                }
                else
                { //Standard beat
                    decimal div = (decimal)Math.Pow(2, snaptocb.SelectedIndex - 1);
                    snapTo = 1M / div;
                }
            }

        }

        private void OkBut_Click(object sender, RoutedEventArgs e)
        {
            Result = "Ok";
            this.Close();
        }

        private void CancelBut_Click(object sender, RoutedEventArgs e)
        {
            this.Close();
        }


        private void Window_PreviewKeyDown(object sender, KeyEventArgs e)
        {
            if (e.Key == Key.Escape)
                this.Close();
        }
    }
}