102 lines
2.9 KiB
C#
102 lines
2.9 KiB
C#
/****************************************************************************
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Copyright (c) 2011-2013,WebJet Business Division,CYOU
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http://www.genesis-3d.com.cn
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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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.Text;
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namespace ScriptGUI
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{
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internal class Instance
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{
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internal bool IsValid
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{
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get
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{
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return (nullPtr != mPtr);
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}
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}
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internal static bool Equals(Instance ls, Instance rs)
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{
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if (ReferenceEquals(ls, null))
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{
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return ReferenceEquals(rs, null);
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}
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else if (ReferenceEquals(rs, null))
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{
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return false;
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}
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return (ls.mPtr == rs.mPtr);
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}
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public static bool operator ==(Instance ls, Instance rs)
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{
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return Equals(ls, rs);
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}
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public static bool operator !=(Instance ls, Instance rs)
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{
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return !Equals(ls, rs);
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}
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public override bool Equals(object obj)
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{
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return (obj is Instance) && (this == (obj as Instance));
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}
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public override int GetHashCode()
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{
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return mPtr.GetHashCode();
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}
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private Instance(IntPtr ptr)
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{
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mPtr = ptr;
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}
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internal IntPtr Ptr
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{
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get
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{
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return mPtr;
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}
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}
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public static implicit operator Instance(IntPtr ptr)
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{
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return new Instance(ptr);
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}
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internal static Instance NullInstance
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{
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get
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{
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return nullInstance;
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}
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}
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private IntPtr mPtr;
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private static IntPtr nullPtr = new IntPtr(0);
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private static readonly Instance nullInstance = nullPtr;
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}
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}
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