GtkSharp/glib/Opaque.cs
Mike Kestner 7a6d6b2128 2004-06-25 Mike Kestner <mkestner@ximian.com>
* */*.cs : add lgpl license blurb and clean up (c)'s.
	* */*.custom : add lgpl license blurb and clean up (c)'s.
	* */glue/*.c : add lgpl license blurb and clean up (c)'s.
	file adds without license from now on are punishable by wedgie.

svn path=/trunk/gtk-sharp/; revision=30401
2004-06-25 18:42:19 +00:00

136 lines
3.1 KiB
C#

// Opaque .cs - Opaque struct wrapper implementation
//
// Authors: Bob Smith <bob@thestuff.net>
// Mike Kestner <mkestner@speakeasy.net>
// Rachel Hestilow <hestilow@ximian.com>
//
// Copyright (c) 2001 Bob Smith
// Copyright (c) 2001 Mike Kestner
// Copyright (c) 2002 Rachel Hestilow
//
// This program is free software; you can redistribute it and/or
// modify it under the terms of version 2 of the Lesser GNU General
// Public License as published by the Free Software Foundation.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this program; if not, write to the
// Free Software Foundation, Inc., 59 Temple Place - Suite 330,
// Boston, MA 02111-1307, USA.
namespace GLib {
using System;
using System.Collections;
using System.ComponentModel;
using System.Runtime.InteropServices;
public class Opaque : IWrapper {
// Private class and instance members
IntPtr _obj;
static Hashtable Opaques = new Hashtable();
/// <summary>
/// GetObject Shared Method
/// </summary>
///
/// <remarks>
/// Used to obtain a CLI typed object associated with a
/// given raw object pointer. This method is primarily
/// used to wrap object references that are returned
/// by either the signal system or raw class methods that
/// return opaque struct references.
/// </remarks>
///
/// <returns>
/// The wrapper instance.
/// </returns>
public static Opaque GetOpaque(IntPtr o)
{
Opaque obj = (Opaque)Opaques[(int)o];
if (obj != null) return obj;
return null; //FIXME: Call TypeParser here eventually.
}
public Opaque () {}
/// <summary>
/// Opaque Constructor
/// </summary>
///
/// <remarks>
/// Creates an opaque wrapper from a raw object reference.
/// </remarks>
public Opaque (IntPtr raw)
{
Raw = raw;
}
/// <summary>
/// Raw Property
/// </summary>
///
/// <remarks>
/// The raw Opaque reference associated with this wrapper.
/// Only subclasses of Opaque can access this read/write
/// property. For public read-only access, use the
/// Handle property.
/// </remarks>
protected IntPtr Raw {
get {
return _obj;
}
set {
Opaques [value] = this;
_obj = value;
}
}
/// <summary>
/// Handle Property
/// </summary>
///
/// <remarks>
/// The raw Opaque reference associated with this object.
/// Subclasses can use Raw property for read/write
/// access.
/// </remarks>
public IntPtr Handle {
get {
return _obj;
}
}
public override bool Equals (object o)
{
if (!(o is Opaque))
return false;
return (Handle == ((Opaque) o).Handle);
}
/// <summary>
/// GetHashCode Method
/// </summary>
///
/// <remarks>
/// Calculates a hashing value.
/// </remarks>
public override int GetHashCode ()
{
return Handle.GetHashCode ();
}
}
}