122 lines
4.5 KiB
C#
122 lines
4.5 KiB
C#
//------------------------------------------------------------------------------
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// <copyright file="EditorAttribute.cs" company="Microsoft">
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// Copyright (c) Microsoft Corporation. All rights reserved.
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// </copyright>
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//------------------------------------------------------------------------------
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/*
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*/
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namespace System.ComponentModel {
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using System.Diagnostics;
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using System.Globalization;
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using System.Security.Permissions;
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/// <devdoc>
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/// <para>Specifies the editor to use to change a property. This class cannot be inherited.</para>
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/// </devdoc>
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[AttributeUsage(AttributeTargets.All, AllowMultiple = true, Inherited = true)]
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public sealed class EditorAttribute : Attribute {
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private string baseTypeName;
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private string typeName;
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private string typeId;
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/// <devdoc>
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/// <para>Initializes a new instance of the <see cref='System.ComponentModel.EditorAttribute'/> class with the default editor, which is
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/// no editor.</para>
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/// </devdoc>
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public EditorAttribute() {
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this.typeName = string.Empty;
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this.baseTypeName = string.Empty;
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}
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/// <devdoc>
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/// <para>Initializes a new instance of the <see cref='System.ComponentModel.EditorAttribute'/> class with the type name and base type
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/// name of the editor.</para>
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/// </devdoc>
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public EditorAttribute(string typeName, string baseTypeName) {
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string temp = typeName.ToUpper(CultureInfo.InvariantCulture);
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Debug.Assert(temp.IndexOf(".DLL") == -1, "Came across: " + typeName + " . Please remove the .dll extension");
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this.typeName = typeName;
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this.baseTypeName = baseTypeName;
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}
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/// <devdoc>
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/// <para>Initializes a new instance of the <see cref='System.ComponentModel.EditorAttribute'/> class.</para>
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/// </devdoc>
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public EditorAttribute(string typeName, Type baseType) {
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string temp = typeName.ToUpper(CultureInfo.InvariantCulture);
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Debug.Assert(temp.IndexOf(".DLL") == -1, "Came across: " + typeName + " . Please remove the .dll extension");
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this.typeName = typeName;
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this.baseTypeName = baseType.AssemblyQualifiedName;
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}
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/// <devdoc>
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/// <para>Initializes a new instance of the <see cref='System.ComponentModel.EditorAttribute'/>
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/// class.</para>
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/// </devdoc>
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public EditorAttribute(Type type, Type baseType) {
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this.typeName = type.AssemblyQualifiedName;
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this.baseTypeName = baseType.AssemblyQualifiedName;
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}
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/// <devdoc>
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/// <para>Gets the name of the base class or interface serving as a lookup key for this editor.</para>
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/// </devdoc>
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public string EditorBaseTypeName {
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get {
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return baseTypeName;
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}
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}
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/// <devdoc>
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/// <para>Gets the name of the editor class.</para>
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/// </devdoc>
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public string EditorTypeName {
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get {
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return typeName;
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}
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}
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/// <internalonly/>
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/// <devdoc>
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/// <para>
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/// This defines a unique ID for this attribute type. It is used
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/// by filtering algorithms to identify two attributes that are
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/// the same type. For most attributes, this just returns the
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/// Type instance for the attribute. EditorAttribute overrides
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/// this to include the type of the editor base type.
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/// </para>
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/// </devdoc>
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public override object TypeId {
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get {
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if (typeId == null) {
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string baseType = baseTypeName;
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int comma = baseType.IndexOf(',');
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if (comma != -1) {
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baseType = baseType.Substring(0, comma);
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}
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typeId = GetType().FullName + baseType;
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}
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return typeId;
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}
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}
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public override bool Equals(object obj) {
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if (obj == this) {
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return true;
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}
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EditorAttribute other = obj as EditorAttribute;
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return (other != null) && other.typeName == typeName && other.baseTypeName == baseTypeName;
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}
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public override int GetHashCode() {
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return base.GetHashCode();
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}
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}
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}
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