256bc09aee
* glib/Opaque.cs : hold a weakref in the hash, not a strong ref. svn path=/trunk/gtk-sharp/; revision=37840
84 lines
1.9 KiB
C#
84 lines
1.9 KiB
C#
// Opaque .cs - Opaque struct wrapper implementation
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//
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// Authors: Bob Smith <bob@thestuff.net>
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// Mike Kestner <mkestner@speakeasy.net>
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// Rachel Hestilow <hestilow@ximian.com>
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//
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// Copyright (c) 2001 Bob Smith
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// Copyright (c) 2001 Mike Kestner
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// Copyright (c) 2002 Rachel Hestilow
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// Copyright (c) 2004 Novell, Inc.
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//
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// This program is free software; you can redistribute it and/or
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// modify it under the terms of version 2 of the Lesser GNU General
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// Public License as published by the Free Software Foundation.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public
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// License along with this program; if not, write to the
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// Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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// Boston, MA 02111-1307, USA.
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namespace GLib {
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using System;
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using System.Collections;
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using System.ComponentModel;
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using System.Runtime.InteropServices;
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public class Opaque : IWrapper {
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IntPtr _obj;
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static Hashtable Opaques = new Hashtable();
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public static Opaque GetOpaque(IntPtr o)
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{
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WeakReference reference = (WeakReference) Opaques[(int)o];
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if (reference == null || !reference.IsAlive)
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return null;
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return (Opaque) reference.Target;
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}
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public Opaque () {}
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public Opaque (IntPtr raw)
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{
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Raw = raw;
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}
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protected IntPtr Raw {
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get {
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return _obj;
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}
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set {
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Opaques [value] = new WeakReference (this);
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_obj = value;
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}
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}
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public IntPtr Handle {
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get {
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return _obj;
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}
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}
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public override bool Equals (object o)
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{
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if (!(o is Opaque))
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return false;
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return (Handle == ((Opaque) o).Handle);
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}
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public override int GetHashCode ()
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{
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return Handle.GetHashCode ();
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}
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}
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}
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