mirror of
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91 lines
2.9 KiB
C#
91 lines
2.9 KiB
C#
// GLib.ObjectManager.cs - GLib ObjectManager class implementation
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//
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// Author: Mike Kestner <mkestner@speakeasy.net>
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//
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// Copyright <c> 2001-2002 Mike Kestner
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// Copyright <c> 2004-2005 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.Runtime.InteropServices;
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using System.Reflection;
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public static class ObjectManager {
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static BindingFlags flags = BindingFlags.NonPublic | BindingFlags.Public | BindingFlags.Instance | BindingFlags.CreateInstance;
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public static GLib.Object CreateObject (IntPtr raw)
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{
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if (raw == IntPtr.Zero)
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return null;
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Type type = GetTypeOrParent (raw);
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if (type == null)
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return null;
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GLib.Object obj;
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try {
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obj = Activator.CreateInstance (type, flags, null, new object[] {raw}, null) as GLib.Object;
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} catch (MissingMethodException) {
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throw new GLib.MissingIntPtrCtorException ("Unable to construct instance of type " + type + " from native object handle. Instance of managed subclass may have been prematurely disposed.");
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}
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return obj;
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}
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[Obsolete ("Replaced by GType.Register (GType, Type)")]
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public static void RegisterType (string native_name, string managed_name, string assembly)
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{
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RegisterType (native_name, managed_name + "," + assembly);
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}
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[Obsolete ("Replaced by GType.Register (GType, Type)")]
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public static void RegisterType (string native_name, string mangled)
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{
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RegisterType (GType.FromName (native_name), Type.GetType (mangled));
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}
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[Obsolete ("Replaced by GType.Register (GType, Type)")]
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public static void RegisterType (GType native_type, System.Type type)
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{
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GType.Register (native_type, type);
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}
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static Type GetTypeOrParent (IntPtr obj)
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{
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IntPtr typeid = GType.ValFromInstancePtr (obj);
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if (typeid == GType.Invalid.Val)
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return null;
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Type result = GType.LookupType (typeid);
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while (result == null) {
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typeid = g_type_parent (typeid);
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if (typeid == IntPtr.Zero)
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return null;
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result = GType.LookupType (typeid);
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}
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return result;
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}
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[UnmanagedFunctionPointer(CallingConvention.Cdecl)]
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delegate IntPtr d_g_type_parent(IntPtr typ);
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static d_g_type_parent g_type_parent = FuncLoader.LoadFunction<d_g_type_parent>(FuncLoader.GetProcAddress(GLibrary.Load(Library.GObject), "g_type_parent"));
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}
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}
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