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![Mike Kestner](/assets/img/avatar_default.png)
* generator/CallbackGen.cs : don't create native delegates for nulls. * generator/ObjectGen.cs : revamp the ObjectManager code. * glib/Object.cs : use new ObjectManager.RegisterType overload. * glib/ObjectManager.cs : rewrite to kill the lameass LoadWithPartial hack and keep a GType to Type mapping for quicker lookup/activation. svn path=/trunk/gtk-sharp/; revision=42241
129 lines
3.7 KiB
C#
129 lines
3.7 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.Collections;
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using System.Runtime.InteropServices;
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using System.Reflection;
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using System.Text;
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public class ObjectManager {
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private static Hashtable types = new Hashtable ();
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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 ("GLib.Object subclass " + type + " must provide a protected or public IntPtr ctor to support wrapping of native object handles.");
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}
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return obj;
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}
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[Obsolete ("Use the (GType, Type) overload instead")]
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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 ("Use the (GType, Type) overload instead")]
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public static void RegisterType (string native_name, string mangled)
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{
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types [native_name] = mangled;
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}
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public static void RegisterType (GType native_type, System.Type type)
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{
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types [native_type.Val] = type;
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}
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static string GetQualifiedName (string cname)
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{
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for (int i = 1; i < cname.Length; i++) {
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if (Char.IsUpper (cname[i])) {
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if (i == 1 && cname [0] == 'G')
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return "GLib." + cname.Substring (1);
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else
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return cname.Substring (0, i) + "." + cname.Substring (i);
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}
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}
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throw new ArgumentException ("cname is not in NamespaceType format. RegisterType should be called directly for " + cname);
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}
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static Type GetTypeOrParent (IntPtr obj)
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{
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IntPtr typeid = gtksharp_get_type_id (obj);
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Type result = LookupType (typeid);
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while (result == null) {
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typeid = gtksharp_get_parent_type (typeid);
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if (typeid == IntPtr.Zero)
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return null;
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result = LookupType (typeid);
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}
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return result;
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}
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static Type LookupType (IntPtr typeid)
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{
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if (types.Contains (typeid))
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return types [typeid] as Type;
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string native_name = Marshaller.Utf8PtrToString (gtksharp_get_type_name_for_id (typeid));
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string type_name = GetQualifiedName (native_name);
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Type result = null;
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foreach (Assembly asm in AppDomain.CurrentDomain.GetAssemblies ()) {
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result = asm.GetType (type_name);
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if (result != null)
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break;
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}
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types [typeid] = result;
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return result;
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}
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[DllImport("glibsharpglue-2")]
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static extern IntPtr gtksharp_get_type_id (IntPtr raw);
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[DllImport("glibsharpglue-2")]
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static extern IntPtr gtksharp_get_parent_type (IntPtr typ);
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[DllImport("glibsharpglue-2")]
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static extern IntPtr gtksharp_get_type_name_for_id (IntPtr typ);
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}
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}
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