Get rid of own HashSet implementation.

git-svn-id: svn://svn.sharpdevelop.net/sharpdevelop/trunk@4775 1ccf3a8d-04fe-1044-b7c0-cef0b8235c61

src/AddIns/DisplayBindings/WpfDesign/WpfDesign.Designer/Project/ServiceRequiredException.cs

@@ -1,56 +0,0 @@
-// <file>
-//     <copyright see="prj:///doc/copyright.txt"/>
-//     <license see="prj:///doc/license.txt"/>
-//     <owner name="Daniel Grunwald" email="daniel@danielgrunwald.de"/>
-//     <version>$Revision$</version>
-// </file>
-
-using System;
-using System.Runtime.Serialization;
-
-namespace ICSharpCode.WpfDesign.Designer
-{
-	/// <summary>
-	/// Exception class used for designer failures.
-	/// </summary>
-	[Serializable]
-	public class ServiceRequiredException : DesignerException
-	{
-		/// <summary>
-		/// Create a new ServiceRequiredException instance.
-		/// </summary>
-		public ServiceRequiredException(Type serviceType)
-			: this("Service " + serviceType.FullName + " is required.")
-		{
-		}
-		
-		/// <summary>
-		/// Create a new ServiceRequiredException instance.
-		/// </summary>
-		public ServiceRequiredException()
-		{
-		}
-		
-		/// <summary>
-		/// Create a new ServiceRequiredException instance.
-		/// </summary>
-		public ServiceRequiredException(string message) : base(message)
-		{
-		}
-		
-		/// <summary>
-		/// Create a new ServiceRequiredException instance.
-		/// </summary>
-		public ServiceRequiredException(string message, Exception innerException) : base(message, innerException)
-		{
-		}
-		
-		/// <summary>
-		/// Create a new ServiceRequiredException instance.
-		/// </summary>
-		protected ServiceRequiredException(SerializationInfo info, StreamingContext context)
-			: base(info, context)
-		{
-		}
-	}
-}

src/AddIns/DisplayBindings/WpfDesign/WpfDesign.Designer/Project/Services/SelectionService.cs

@@ -28,7 +28,7 @@ namespace ICSharpCode.WpfDesign.Designer.Services
 		}
 		
 		public ICollection<DesignItem> SelectedItems {
-			get { return _selectedComponents.Clone(); }
+			get { return _selectedComponents.ToArray(); }
 		}
 		
 		public DesignItem PrimarySelection {
@@ -159,7 +159,7 @@ namespace ICSharpCode.WpfDesign.Designer.Services
 				}
 			}
 
-			if (!SelectedItems.SequenceEqual(prevSelectedItems)) {
+			if (!_selectedComponents.SequenceEqual(prevSelectedItems)) {
 				if (SelectionChanged != null) {
 					SelectionChanged(this, new DesignItemCollectionEventArgs(componentsToNotifyOfSelectionChange));
 				}

src/AddIns/DisplayBindings/WpfDesign/WpfDesign/Project/HashSet.cs

@@ -1,202 +0,0 @@
-// <file>
-//     <copyright see="prj:///doc/copyright.txt"/>
-//     <license see="prj:///doc/license.txt"/>
-//     <owner name="Daniel Grunwald" email="daniel@danielgrunwald.de"/>
-//     <version>$Revision$</version>
-// </file>
-
-using System;
-using System.Collections;
-using System.Collections.Generic;
-using System.Collections.Specialized;
-
-namespace ICSharpCode.WpfDesign
-{
-	/// <summary>
-	/// Represents a set of items. The set does not preserve the order of items and does not allow items to
-	/// be added twice.
-	/// It supports collection change notifications and is cloned by sharing the underlying
-	/// data structure and delaying the actual copy until the next change.
-	/// </summary>
-	[System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Naming", "CA1710:IdentifiersShouldHaveCorrectSuffix")]
-	public sealed class HashSet<T> : ICollection<T>, ICollection, ICloneable, INotifyCollectionChanged
-		where T : class
-	{
-		Dictionary<T, object> _dict;
-		bool _copyOnWrite;
-		
-		/// <summary>
-		/// This event is raised whenever the collection changes.
-		/// </summary>
-		public event NotifyCollectionChangedEventHandler CollectionChanged;
-		
-		/// <summary>
-		/// Creates a new, empty set.
-		/// </summary>
-		public HashSet()
-		{
-			_dict = new Dictionary<T, object>();
-		}
-		
-		/// <summary>
-		/// Creates a copy of the existing set.
-		/// </summary>
-		public HashSet(HashSet<T> existingSet)
-		{
-			existingSet._copyOnWrite = true;
-			this._copyOnWrite = true;
-			_dict = existingSet._dict;
-		}
-		
-		/// <summary>
-		/// Adds the item to the set.
-		/// Trying to add <c>null</c> will return false without changing the collection.
-		/// </summary>
-		/// <returns>True when the item was added, false when it was not added because it already is in the set</returns>
-		public bool Add(T item)
-		{
-			if (item == null)
-				return false;
-			if (_dict.ContainsKey(item)) {
-				return false;
-			} else {
-				CopyIfRequired();
-				_dict.Add(item, null);
-				if (CollectionChanged != null) {
-					CollectionChanged(this, new NotifyCollectionChangedEventArgs(NotifyCollectionChangedAction.Add, item));
-				}
-				return true;
-			}
-		}
-		
-		/// <summary>
-		/// Adds a list of items to the set. This is equivalent to calling <see cref="Add"/> for each item in <paramref name="items"/>.
-		/// </summary>
-		public void AddRange(IEnumerable<T> items)
-		{
-			foreach (T item in items) {
-				Add(item);
-			}
-		}
-
-		private void CopyIfRequired()
-		{
-			if (_copyOnWrite) {
-				_copyOnWrite = false;
-				_dict = new Dictionary<T, object>(_dict);
-			}
-		}
-
-		/// <summary>
-		/// Removes all items from the set.
-		/// </summary>
-		public void Clear()
-		{
-			_dict.Clear();
-		}
-
-		/// <summary>
-		/// Tests if this set contains the specified item.
-		/// Checking for <c>null</c> always returns false.
-		/// </summary>
-		public bool Contains(T item)
-		{
-			if (item == null)
-				return false;
-			else
-				return _dict.ContainsKey(item);
-		}
-
-		/// <summary>
-		/// Gets the number of items in the collection.
-		/// </summary>
-		public int Count {
-			get { return _dict.Count; }
-		}
-
-		/// <summary>
-		/// Removes an item from the set.
-		/// Trying to remove <c>null</c> will return false without changing the collection.
-		/// </summary>
-		public bool Remove(T item)
-		{
-			if (item == null)
-				return false;
-			CopyIfRequired();
-			if (_dict.Remove(item)) {
-				if (CollectionChanged != null) {
-					CollectionChanged(this, new NotifyCollectionChangedEventArgs(NotifyCollectionChangedAction.Remove, item));
-				}
-				return true;
-			} else {
-				return false;
-			}
-		}
-
-		/// <summary>
-		/// Copy all items to the specified array.
-		/// </summary>
-		void ICollection<T>.CopyTo(T[] array, int arrayIndex)
-		{
-			_dict.Keys.CopyTo(array, arrayIndex);
-		}
-
-		void ICollection<T>.Add(T item)
-		{
-			this.Add(item);
-		}
-
-		bool ICollection<T>.IsReadOnly {
-			get { return false; }
-		}
-
-		#region IEnumerable Members
-		/// <summary>
-		/// Gets an enumerator to enumerate the items in the set.
-		/// </summary>
-		public IEnumerator<T> GetEnumerator()
-		{
-			return _dict.Keys.GetEnumerator();
-		}
-
-		IEnumerator IEnumerable.GetEnumerator()
-		{
-			return _dict.Keys.GetEnumerator();
-		}
-		#endregion
-
-		#region ICollection Members
-
-		void ICollection.CopyTo(Array array, int index)
-		{
-			((ICollection)_dict).CopyTo(array, index);
-		}
-
-		bool ICollection.IsSynchronized {
-			get { return false; }
-		}
-
-		object ICollection.SyncRoot {
-			get { return null; }
-		}
-
-		#endregion
-
-		#region ICloneable Members
-
-		/// <summary>
-		/// Create a copy of this set.
-		/// </summary>
-		public HashSet<T> Clone()
-		{
-			return new HashSet<T>(this);
-		}
-
-		object ICloneable.Clone()
-		{
-			return this.Clone();
-		}
-
-		#endregion
-	}
-}

src/AddIns/DisplayBindings/WpfDesign/WpfDesign/Project/WpfDesign.csproj

@@ -90,7 +90,6 @@
     <Compile Include="Extensions\ExtensionServerAttribute.cs" />
     <Compile Include="Extensions\LogicalExtensionServers.cs" />
     <Compile Include="Extensions\SelectionExtensionServer.cs" />
-    <Compile Include="HashSet.cs" />
     <Compile Include="PlacementOperation.cs" />
     <Compile Include="PlacementType.cs" />
     <Compile Include="PlacementAlignment.cs" />