GtkSharp/glib/ObjectManager.cs
Mike Kestner c9f1eadc11 2004-05-07 Mike Kestner <mkestner@ximian.com>
[Derived from a patch by Ben Maurer]
	* generator/Ctor.cs : generate code to detect subclassing and handle
	GType registration and native object creation properly.
	* generator/Parameters.cs : add PropertyName accessor for param attr.
	* generator/Property.cs : use a new GLib.Value ctor.
	* glib/ObjectManager.cs : redo hash access.
	* glib/Object.cs : CreateNativeObject method to invoke g_object_newv
	and some refactoring of RegisterGType and LookupGType.
	* glib/Value.cs : make gtype field an IntPtr.
	* glib/glue/object.c : glue for g_object_newv use.
	* glib/glue/value.c : new glue for value creation.
	* gtk/Dialog.custom : fix a ctor declaration for auto-reg.
	* gtk/Gtk.metadata : mark a couple property_name attrs as examples.
	* sample/Subclass.cs : use auto-GType-registration now.

svn path=/trunk/gtk-sharp/; revision=26916
2004-05-07 13:42:59 +00:00

115 lines
3 KiB
C#

// Generated File. Do not modify.
// <c> 2001-2002 Mike Kestner
namespace GtkSharp {
using System;
using System.Collections;
using System.Runtime.InteropServices;
using System.Text;
public class ObjectManager {
private static Hashtable types = new Hashtable ();
[DllImport("glibsharpglue")]
static extern IntPtr gtksharp_get_type_name (IntPtr raw);
public static GLib.Object CreateObject (IntPtr raw)
{
if (raw == IntPtr.Zero)
return null;
string typename = Marshal.PtrToStringAnsi (gtksharp_get_type_name (raw));
string mangled;
if (types.ContainsKey(typename))
mangled = (string)types[typename];
else
mangled = GetExpected (typename);
Type t = Type.GetType (mangled);
// if null, try to get a parent type
if (t == null)
t = GetValidParentType (raw);
if (t == null) {
// should never get reached since everything should end up at
// GObject. Perhaps throw an exception here instead?
Console.WriteLine ("*** Warning: No C# equivalent for class '" + typename +
"' found, returning null");
return null;
}
return (GLib.Object) Activator.CreateInstance (t, new object[] {raw});
}
public static void RegisterType (string native_name, string managed_name, string assembly)
{
RegisterType (native_name, managed_name + "," + assembly);
}
public static void RegisterType (string native_name, string mangled)
{
types [native_name] = mangled;
}
static string GetExpected (string cname)
{
StringBuilder expected = new StringBuilder ();
string ns = "";
bool needs_dot = true;
for (int i = 0; i < cname.Length; i++)
{
if (needs_dot && i > 0 && Char.IsUpper (cname[i])) {
// check for initial "G" and mangle to "GLib" if so
// really only necessary for GObject
if (expected.Length == 1 && expected[0] == 'G') {
ns = "glib";
expected = new StringBuilder ("GLib.");
} else {
ns = expected.ToString ().ToLower ();
expected.Append ('.');
}
needs_dot = false;
}
expected.Append (cname[i]);
}
expected.AppendFormat (",{0}-sharp", ns);
string expected_string = expected.ToString ();
RegisterType (cname, expected_string);
return expected_string;
}
[DllImport("glibsharpglue")]
static extern int gtksharp_get_type_id (IntPtr raw);
[DllImport("glibsharpglue")]
static extern int gtksharp_get_parent_type (int typ);
[DllImport("glibsharpglue")]
static extern IntPtr gtksharp_get_type_name_for_id (int typ);
static Type GetValidParentType (IntPtr raw)
{
int type_id = gtksharp_get_type_id (raw);
string typename;
string mangled;
Type t;
// We will always end up at GObject and will break this loop
while (true) {
type_id = gtksharp_get_parent_type (type_id);
typename = Marshal.PtrToStringAnsi (gtksharp_get_type_name_for_id (type_id));
if (types.ContainsKey (typename))
mangled = (string)types[typename];
else
mangled = GetExpected (typename);
t = Type.GetType (mangled);
if (t != null) {
return t;
}
}
}
}
}