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// Copyright (c) AlphaSierraPapa for the SharpDevelop Team (for details please see \doc\copyright.txt)
// This code is distributed under the GNU LGPL (for details please see \doc\license.txt)

using System;
using System.Collections.ObjectModel;

namespace Tango.Scripting.Editors.Utils
{
	/// <summary>
	/// A collection that cannot contain null values.
	/// </summary>
	[Serializable]
	public class NullSafeCollection<T> : Collection<T> where T : class
	{
		/// <inheritdoc/>
		protected override void InsertItem(int index, T item)
		{
			if (item == null)
				throw new ArgumentNullException("item");
			base.InsertItem(index, item);
		}
		
		/// <inheritdoc/>
		protected override void SetItem(int index, T item)
		{
			if (item == null)
				throw new ArgumentNullException("item");
			base.SetItem(index, item);
		}
	}
}
s.ViewModels { /// <summary> /// Represents the main view VM and entry point for <see cref="Synchronization.MyModule"/>. /// </summary> /// <seealso cref="Tango.PPC.Common.PPCViewModel" /> public class MainViewVM : PPCViewModel { #region Properties private Machine _machine; public Machine Machine { get { return _machine; } set { _machine = value; RaisePropertyChangedAuto(); } } private SelectedObjectCollection<JobTypes> _selectedJobTypes; public SelectedObjectCollection<JobTypes> SelectedJobTypes { get { return _selectedJobTypes; } set { _selectedJobTypes = value; RaisePropertyChangedAuto(); } } #endregion #region Commands /// <summary> /// Gets or sets the save command. /// </summary> public RelayCommand SaveCommand { get; set; } /// <summary> /// Gets or sets the discard command. /// </summary> public RelayCommand DiscardCommand { get; set; } #endregion public MainViewVM() { SaveCommand = new RelayCommand(Save); DiscardCommand = new RelayCommand(Discard); } private void Discard() { NavigationManager.NavigateBack(); } private async void Save() { Machine.SupportedJobTypes = SelectedJobTypes.SynchedSource.ToList(); Machine.ShallowCopyTo(MachineProvider.Machine); await MachineProvider.SaveMachine(); await NavigationManager.NavigateBack(); } /// <summary> /// Called when the application has been started /// </summary> public override void OnApplicationStarted() { } public override void OnNavigatedTo() { base.OnNavigatedTo(); Machine = new Machine(); MachineProvider.Machine.ShallowCopyTo(Machine); RaisePropertyChanged(nameof(Machine)); SelectedJobTypes = new SelectedObjectCollection<JobTypes>(Enum.GetValues(typeof(JobTypes)).Cast<JobTypes>().ToObservableCollection(), Machine.SupportedJobTypes.ToObservableCollection()); } } }