115 lines
3.5 KiB
C#
115 lines
3.5 KiB
C#
// Permission is hereby granted, free of charge, to any person obtaining
|
|
// a copy of this software and associated documentation files (the
|
|
// "Software"), to deal in the Software without restriction, including
|
|
// without limitation the rights to use, copy, modify, merge, publish,
|
|
// distribute, sublicense, and/or sell copies of the Software, and to
|
|
// permit persons to whom the Software is furnished to do so, subject to
|
|
// the following conditions:
|
|
//
|
|
// The above copyright notice and this permission notice shall be
|
|
// included in all copies or substantial portions of the Software.
|
|
//
|
|
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
|
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
|
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
|
|
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
|
|
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
|
|
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
|
|
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
|
|
//
|
|
// Copyright (c) 2008 Novell, Inc. (http://www.novell.com)
|
|
//
|
|
// Authors:
|
|
// Chris Toshok (toshok@ximian.com)
|
|
// Brian O'Keefe (zer0keefie@gmail.com)
|
|
//
|
|
|
|
using System;
|
|
using System.Collections.ObjectModel;
|
|
using System.Collections.Specialized;
|
|
|
|
namespace System.ComponentModel {
|
|
|
|
public class SortDescriptionCollection : Collection<SortDescription>, INotifyCollectionChanged
|
|
{
|
|
public static readonly SortDescriptionCollection Empty = new SortDescriptionCollection (true);
|
|
|
|
readonly bool isReadOnly;
|
|
|
|
public SortDescriptionCollection () : this (false)
|
|
{
|
|
}
|
|
|
|
SortDescriptionCollection (bool isReadOnly)
|
|
{
|
|
this.isReadOnly = isReadOnly;
|
|
}
|
|
|
|
event NotifyCollectionChangedEventHandler INotifyCollectionChanged.CollectionChanged {
|
|
add { CollectionChanged += value; }
|
|
remove { CollectionChanged -= value; }
|
|
}
|
|
|
|
protected event NotifyCollectionChangedEventHandler CollectionChanged;
|
|
|
|
protected override void ClearItems ()
|
|
{
|
|
if (isReadOnly)
|
|
throw new NotSupportedException ();
|
|
|
|
base.ClearItems ();
|
|
OnCollectionChanged (NotifyCollectionChangedAction.Reset);
|
|
}
|
|
|
|
protected override void InsertItem (int index, SortDescription item)
|
|
{
|
|
if (isReadOnly)
|
|
throw new NotSupportedException ();
|
|
|
|
item.Seal ();
|
|
base.InsertItem (index, item);
|
|
OnCollectionChanged (NotifyCollectionChangedAction.Add, item, index);
|
|
}
|
|
|
|
protected override void RemoveItem (int index)
|
|
{
|
|
if (isReadOnly)
|
|
throw new NotSupportedException ();
|
|
|
|
SortDescription sd = base [index];
|
|
base.RemoveItem (index);
|
|
OnCollectionChanged (NotifyCollectionChangedAction.Remove, sd, index);
|
|
}
|
|
|
|
protected override void SetItem (int index, SortDescription item)
|
|
{
|
|
if (isReadOnly)
|
|
throw new NotSupportedException ();
|
|
|
|
SortDescription old = base [index];
|
|
item.Seal ();
|
|
base.SetItem (index, item);
|
|
OnCollectionChanged (NotifyCollectionChangedAction.Remove, old, index);
|
|
OnCollectionChanged (NotifyCollectionChangedAction.Add, item, index);
|
|
}
|
|
|
|
private void OnCollectionChanged (NotifyCollectionChangedAction action)
|
|
{
|
|
NotifyCollectionChangedEventHandler eh = CollectionChanged;
|
|
|
|
if (eh != null)
|
|
eh (this, new NotifyCollectionChangedEventArgs (action));
|
|
}
|
|
|
|
private void OnCollectionChanged (NotifyCollectionChangedAction action, SortDescription item, int index)
|
|
{
|
|
NotifyCollectionChangedEventHandler eh = CollectionChanged;
|
|
|
|
if (eh != null)
|
|
eh (this, new NotifyCollectionChangedEventArgs (action, item, index));
|
|
}
|
|
}
|
|
|
|
}
|
|
|