100 lines
3.0 KiB
C#
100 lines
3.0 KiB
C#
//
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// System.ComponentModel.ExtenderProvidedPropertyAttribute.cs
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//
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// Author:
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// Andreas Nahr (ClassDevelopment@A-SoftTech.com)
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//
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// (C) 2003 Andreas Nahr
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//
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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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namespace System.ComponentModel
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{
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[AttributeUsage(AttributeTargets.All)]
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public sealed class ExtenderProvidedPropertyAttribute : Attribute
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{
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private PropertyDescriptor extender;
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private IExtenderProvider extenderProvider;
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private Type receiver;
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public ExtenderProvidedPropertyAttribute()
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{
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}
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// Call this method to create a ExtenderProvidedPropertyAttribute and set it's values
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internal static ExtenderProvidedPropertyAttribute CreateAttribute (PropertyDescriptor extenderProperty, IExtenderProvider provider, Type receiverType)
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{
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ExtenderProvidedPropertyAttribute NewAttribute = new ExtenderProvidedPropertyAttribute();
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NewAttribute.extender = extenderProperty;
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NewAttribute.receiver = receiverType;
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NewAttribute.extenderProvider = provider;
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return NewAttribute;
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}
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public PropertyDescriptor ExtenderProperty {
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get {
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return extender;
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}
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}
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public IExtenderProvider Provider {
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get {
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return extenderProvider;
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}
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}
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public Type ReceiverType {
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get {
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return receiver;
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}
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}
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public override bool IsDefaultAttribute()
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{
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// FIXME correct implementation??
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return (extender == null) &&
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(extenderProvider == null) &&
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(receiver == null);
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}
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public override bool Equals (object obj)
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{
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if (!(obj is ExtenderProvidedPropertyAttribute))
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return false;
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if (obj == this)
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return true;
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return ((ExtenderProvidedPropertyAttribute) obj).ExtenderProperty.Equals (extender) &&
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((ExtenderProvidedPropertyAttribute) obj).Provider.Equals (extenderProvider) &&
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((ExtenderProvidedPropertyAttribute) obj).ReceiverType.Equals (receiver);
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}
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public override int GetHashCode()
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{
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return extender.GetHashCode() ^ extenderProvider.GetHashCode() ^ receiver.GetHashCode();
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}
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}
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}
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