using System;
using System.Linq;
using JD.Application.View.Misc;
using JD.Audio.Annotations;
using TeaBox.Gui;

namespace JD.Application.View.Actions
{
    public class SnappingUnitDropDownMenu : DropDownMenuItemBase
    {
        public SnappingUnitDropDownMenu()
            : base(typeof(SnappingUnit))
        {
            Enabled = true;
            UpdateState();
        }

        public override void UpdateState()
        {
            SelectedMode = EditionOptions.CurrentSnappingUnit;
            base.UpdateState();
        }

        protected override void Execute()
        {
            EditionOptions.CurrentSnappingUnit = (SnappingUnit)SelectedMode;
        }

        /// <summary>
        /// Handler called on button selection.
        /// </summary>
        protected override void OnActivate()
        {
            if (EnumType != null)
            {
                if ((SnappingUnit) SelectedMode == SnappingUnit.None)
                {
                    SelectedMode = EditionOptions.PreferredSnappingUnit;
                }
                else
                {
                    SelectedMode = SnappingUnit.None;
                }
            }
            Execute();
        }
    }
}