114 lines
3.2 KiB
C#
114 lines
3.2 KiB
C#
//
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// System.ComponentModel.Design.ReferenceService
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//
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// Authors:
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// Ivan N. Zlatev (contact i-nZ.net)
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//
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// (C) 2007 Ivan N. Zlatev
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//
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// Permission is hereby granted, free of charge, to any person obtaining
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// a copy of this software and associated documentation files (the
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// "Software"), to deal in the Software without restriction, including
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// without limitation the rights to use, copy, modify, merge, publish,
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// distribute, sublicense, and/or sell copies of the Software, and to
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// permit persons to whom the Software is furnished to do so, subject to
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// the following conditions:
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//
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// The above copyright notice and this permission notice shall be
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// included in all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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//
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using System;
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using System.Collections.Generic;
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using System.Globalization;
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using System.ComponentModel;
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namespace System.ComponentModel.Design
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{
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internal class ReferenceService : IReferenceService, IDisposable
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{
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private List<IComponent> _references;
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internal ReferenceService (IServiceProvider provider)
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{
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if (provider == null)
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throw new ArgumentNullException ("provider");
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_references = new List<IComponent>();
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IComponentChangeService serv = provider.GetService (typeof (IComponentChangeService)) as IComponentChangeService;
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if (serv != null) {
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serv.ComponentAdded += OnComponentAdded;
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serv.ComponentRemoved += OnComponentRemoved;
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}
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}
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private void OnComponentAdded (object sender, ComponentEventArgs args)
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{
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_references.Add (args.Component);
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}
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private void OnComponentRemoved (object sender, ComponentEventArgs args)
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{
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_references.Remove (args.Component);
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}
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public IComponent GetComponent (object reference)
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{
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return reference as IComponent;
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}
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public string GetName (object reference)
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{
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IComponent comp = reference as IComponent;
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if (comp != null && comp.Site != null)
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return comp.Site.Name;
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return null;
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}
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public object GetReference (string name)
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{
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foreach (IComponent component in _references)
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if (component.Site != null && component.Site.Name == name)
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return component;
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return null;
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}
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public object[] GetReferences ()
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{
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IComponent[] references = new IComponent[_references.Count];
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_references.CopyTo (references);
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return references;
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}
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public object[] GetReferences (Type baseType)
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{
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List<IComponent> references = new List<IComponent>();
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foreach (IComponent component in _references)
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if (baseType.IsAssignableFrom ((component.GetType ())))
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references.Add (component);
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IComponent[] refArray = new IComponent[references.Count];
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references.CopyTo (refArray);
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return refArray;
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}
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public void Dispose ()
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{
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_references.Clear ();
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}
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}
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}
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