Merge pull request #61 from knocte/class_init
glib: install interfaces earlier, override properties in class_init
This commit is contained in:
Bertrand Lorentz
commit
e8f4eca14e
3 changed files with 228 additions and 145 deletions
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@ -117,10 +117,6 @@ namespace GtkSharp.Generation {
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}
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sw.WriteLine ("\t\t\tMarshal.StructureToPtr (native_iface, ifaceptr, false);");
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}
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foreach (Property prop in Properties.Values) {
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sw.WriteLine ("\t\t\tGLib.Object.OverrideProperty (data, \"" + prop.CName + "\");");
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}
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sw.WriteLine ("\t\t}");
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sw.WriteLine ();
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}
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@ -37,10 +37,14 @@ namespace GLib {
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IntPtr val;
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struct GTypeInfo {
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[UnmanagedFunctionPointer (CallingConvention.Cdecl)]
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public delegate void ClassInitDelegate (IntPtr gobject_class_handle);
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public ushort class_size;
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public IntPtr base_init;
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public IntPtr base_finalize;
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public IntPtr class_init;
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public ClassInitDelegate class_init;
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public IntPtr class_finalize;
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public IntPtr class_data;
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public ushort instance_size;
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@ -356,19 +360,23 @@ namespace GLib {
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return sb.ToString ();
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}
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internal static GType RegisterGObjectType (System.Type t)
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internal static GType RegisterGObjectType (Object.ClassInitializer gobject_class_initializer)
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{
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GType parent_gtype = LookupGObjectType (t.BaseType);
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string name = BuildEscapedName (t);
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GType parent_gtype = LookupGObjectType (gobject_class_initializer.Type.BaseType);
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string name = BuildEscapedName (gobject_class_initializer.Type);
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IntPtr native_name = GLib.Marshaller.StringToPtrGStrdup (name);
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GTypeQuery query;
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g_type_query (parent_gtype.Val, out query);
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GTypeInfo info = new GTypeInfo ();
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info.class_size = (ushort) query.class_size;
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info.instance_size = (ushort) query.instance_size;
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info.class_init = gobject_class_initializer.ClassInit;
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GType gtype = new GType (g_type_register_static (parent_gtype.Val, native_name, ref info, 0));
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GLib.Marshaller.Free (native_name);
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Register (gtype, t);
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Register (gtype, gobject_class_initializer.Type);
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return gtype;
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}
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351
glib/Object.cs
351
glib/Object.cs
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@ -1,9 +1,11 @@
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// Object.cs - GObject class wrapper implementation
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//
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// Authors: Mike Kestner <mkestner@speakeasy.net>
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// Andres G. Aragoneses <knocte@gmail.com>
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//
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// Copyright (c) 2001-2003 Mike Kestner
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// Copyright (c) 2004-2005 Novell, Inc.
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// Copyright (c) 2013 Andres G. Aragoneses
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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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@ -137,38 +139,6 @@ namespace GLib {
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return GetObject (o, false);
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}
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private static void ConnectDefaultHandlers (GType gtype, System.Type t)
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{
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foreach (MethodInfo minfo in t.GetMethods(BindingFlags.Instance | BindingFlags.NonPublic | BindingFlags.Public | BindingFlags.DeclaredOnly)) {
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MethodInfo baseinfo = minfo.GetBaseDefinition ();
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if (baseinfo == minfo)
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continue;
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foreach (object attr in baseinfo.GetCustomAttributes (typeof (DefaultSignalHandlerAttribute), false)) {
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DefaultSignalHandlerAttribute sigattr = attr as DefaultSignalHandlerAttribute;
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MethodInfo connector = sigattr.Type.GetMethod (sigattr.ConnectionMethod, BindingFlags.Static | BindingFlags.NonPublic, null, new Type[] { typeof (GType) }, new ParameterModifier [0]);
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object[] parms = new object [1];
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parms [0] = gtype;
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connector.Invoke (null, parms);
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break;
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}
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}
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}
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private static void InvokeTypeInitializers (GType gtype, System.Type t)
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{
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object[] parms = {gtype, t};
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BindingFlags flags = BindingFlags.Static | BindingFlags.NonPublic;
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foreach (TypeInitializerAttribute tia in t.GetCustomAttributes (typeof (TypeInitializerAttribute), true)) {
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MethodInfo m = tia.Type.GetMethod (tia.MethodName, flags);
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if (m != null)
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m.Invoke (null, parms);
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}
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}
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// Key: The Type for the set of properties
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// Value->SubKey: The pointer to the ParamSpec of the property
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// Value->SubValue: The corresponding PropertyInfo object
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@ -214,6 +184,207 @@ namespace GLib {
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public IntPtr dummy7;
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}
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internal class ClassInitializer {
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internal Type Type { get; private set; }
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internal bool HandlersOverriden { get; private set; }
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uint idx = 1;
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bool is_first_subclass;
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private GType gtype;
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private List<GInterfaceAdapter> adapters = new List<GInterfaceAdapter> ();
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internal ClassInitializer (Type type)
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{
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Type = type;
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gtype = GType.RegisterGObjectType (this);
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is_first_subclass = gtype.GetBaseType () == gtype.GetThresholdType ();
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}
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internal GType Init ()
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{
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AddGInterfaces ();
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gtype.EnsureClass (); //calls class_init
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AddProperties ();
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ConnectDefaultHandlers ();
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InvokeTypeInitializers ();
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AddInterfaceProperties ();
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return gtype;
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}
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private void AddGInterfaces ()
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{
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foreach (Type iface in Type.GetInterfaces ()) {
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if (!iface.IsDefined (typeof (GInterfaceAttribute), true))
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continue;
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GInterfaceAttribute attr = iface.GetCustomAttributes (typeof (GInterfaceAttribute), false) [0] as GInterfaceAttribute;
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GInterfaceAdapter adapter = Activator.CreateInstance (attr.AdapterType, null) as GInterfaceAdapter;
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if (!iface.IsAssignableFrom (Type.BaseType)) {
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GInterfaceInfo info = adapter.Info;
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info.Data = gtype.Val;
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g_type_add_interface_static (gtype.Val, adapter.GType.Val, ref info);
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adapters.Add (adapter);
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}
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}
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}
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internal void ClassInit (IntPtr gobject_class_handle)
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{
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bool override_ctor = is_first_subclass;
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bool override_props = is_first_subclass || adapters.Count > 0;
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OverrideHandlers (gobject_class_handle, override_ctor, override_props);
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foreach (GInterfaceAdapter adapter in adapters) {
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InitializeProperties (adapter, gobject_class_handle);
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}
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}
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private void InitializeProperties (GInterfaceAdapter adapter, IntPtr gobject_class_handle)
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{
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foreach (PropertyInfo pinfo in adapter.GetType ().GetProperties (BindingFlags.Instance | BindingFlags.Public | BindingFlags.DeclaredOnly)) {
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foreach (object attr in pinfo.GetCustomAttributes (typeof (PropertyAttribute), false)) {
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if (pinfo.GetIndexParameters ().Length > 0)
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throw new InvalidOperationException (String.Format ("Property {0} of type {1} cannot be overriden because its GLib.PropertyAttribute is expected to have one or more indexed parameters",
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pinfo.Name, adapter.GetType ().FullName));
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PropertyAttribute property_attr = attr as PropertyAttribute;
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if (property_attr != null) {
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OverrideProperty (gobject_class_handle, property_attr.Name);
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}
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}
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}
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}
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void OverrideProperty (IntPtr declaring_class, string name)
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{
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Object.OverrideProperty (declaring_class, idx++, name);
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idx++;
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}
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private void OverrideHandlers (bool ctor, bool properties)
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{
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OverrideHandlers (gtype.GetClassPtr (), ctor, properties);
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}
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private void OverrideHandlers (IntPtr gobject_class_handle, bool ctor, bool properties)
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{
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if (HandlersOverriden || (ctor == false && properties == false))
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return;
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GObjectClass gobject_class = (GObjectClass)Marshal.PtrToStructure (gobject_class_handle, typeof(GObjectClass));
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if (ctor) {
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gobject_class.constructor_cb = GLib.Object.ConstructorHandler;
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}
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if (properties) {
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gobject_class.get_prop_cb = GLib.Object.GetPropertyHandler;
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gobject_class.set_prop_cb = GLib.Object.SetPropertyHandler;
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}
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Marshal.StructureToPtr (gobject_class, gobject_class_handle, false);
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HandlersOverriden = true;
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}
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void AddProperties ()
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{
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if (is_first_subclass) {
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IntPtr declaring_class = gtype.GetClassPtr ();
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ParamSpec pspec = new ParamSpec ("gtk-sharp-managed-instance", "", "", GType.Pointer, ParamFlags.Writable | ParamFlags.ConstructOnly);
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g_object_class_install_property (declaring_class, idx, pspec.Handle);
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idx++;
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}
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foreach (PropertyInfo pinfo in Type.GetProperties (BindingFlags.Instance | BindingFlags.Public | BindingFlags.DeclaredOnly)) {
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foreach (object attr in pinfo.GetCustomAttributes (typeof (PropertyAttribute), false)) {
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if (pinfo.GetIndexParameters ().Length > 0)
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throw new InvalidOperationException(String.Format("GLib.RegisterPropertyAttribute cannot be applied to property {0} of type {1} because the property expects one or more indexed parameters",
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pinfo.Name, Type.FullName));
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OverrideHandlers (false, true);
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PropertyAttribute property_attr = attr as PropertyAttribute;
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try {
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IntPtr param_spec = RegisterProperty (gtype, property_attr.Name, property_attr.Nickname, property_attr.Blurb, idx, (GType) pinfo.PropertyType, pinfo.CanRead, pinfo.CanWrite);
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Type type = (Type)gtype;
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Dictionary<IntPtr, PropertyInfo> gtype_properties;
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if (!Properties.TryGetValue (type, out gtype_properties)) {
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gtype_properties = new Dictionary<IntPtr, PropertyInfo> ();
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Properties [type] = gtype_properties;
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}
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gtype_properties.Add (param_spec, pinfo);
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idx++;
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} catch (ArgumentException) {
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throw new InvalidOperationException (String.Format ("GLib.PropertyAttribute cannot be applied to property {0} of type {1} because the return type of the property is not supported",
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pinfo.Name, Type.FullName));
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}
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}
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}
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}
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void AddInterfaceProperties ()
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{
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foreach (Type iface in Type.GetInterfaces ()) {
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if (!iface.IsDefined (typeof (GInterfaceAttribute), true))
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continue;
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GInterfaceAttribute attr = iface.GetCustomAttributes (typeof (GInterfaceAttribute), false) [0] as GInterfaceAttribute;
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GInterfaceAdapter adapter = Activator.CreateInstance (attr.AdapterType, null) as GInterfaceAdapter;
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foreach (PropertyInfo p in iface.GetProperties ()) {
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PropertyAttribute[] attrs = p.GetCustomAttributes (typeof (PropertyAttribute), true) as PropertyAttribute [];
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if (attrs.Length == 0)
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continue;
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PropertyAttribute property_attr = attrs [0];
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PropertyInfo declared_prop = Type.GetProperty (p.Name, BindingFlags.Public | BindingFlags.Instance);
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if (declared_prop == null)
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continue;
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IntPtr param_spec = FindInterfaceProperty (adapter.GType, property_attr.Name);
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Dictionary<IntPtr, PropertyInfo> props;
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if (!Properties.TryGetValue (Type, out props)) {
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props = new Dictionary<IntPtr, PropertyInfo> ();
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Properties [Type] = props;
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}
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props [param_spec] = declared_prop;
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}
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}
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}
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void ConnectDefaultHandlers ()
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{
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foreach (MethodInfo minfo in Type.GetMethods(BindingFlags.Instance | BindingFlags.NonPublic | BindingFlags.Public | BindingFlags.DeclaredOnly)) {
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MethodInfo baseinfo = minfo.GetBaseDefinition ();
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if (baseinfo == minfo)
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continue;
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foreach (object attr in baseinfo.GetCustomAttributes (typeof (DefaultSignalHandlerAttribute), false)) {
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DefaultSignalHandlerAttribute sigattr = attr as DefaultSignalHandlerAttribute;
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MethodInfo connector = sigattr.Type.GetMethod (sigattr.ConnectionMethod, BindingFlags.Static | BindingFlags.NonPublic, null, new Type[] { typeof (GType) }, new ParameterModifier [0]);
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object[] parms = new object [1];
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parms [0] = gtype;
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connector.Invoke (null, parms);
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break;
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}
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}
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}
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void InvokeTypeInitializers ()
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{
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object[] parms = {gtype, Type};
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BindingFlags flags = BindingFlags.Static | BindingFlags.NonPublic;
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foreach (TypeInitializerAttribute tia in Type.GetCustomAttributes (typeof (TypeInitializerAttribute), true)) {
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MethodInfo m = tia.Type.GetMethod (tia.MethodName, flags);
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if (m != null)
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m.Invoke (null, parms);
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}
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}
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}
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[UnmanagedFunctionPointer (CallingConvention.Cdecl)]
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delegate IntPtr ConstructorDelegate (IntPtr gtype, uint n_construct_properties, IntPtr construct_properties);
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@ -262,10 +433,16 @@ namespace GLib {
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[DllImport ("libgobject-2.0-0.dll", CallingConvention = CallingConvention.Cdecl)]
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static extern void g_object_class_override_property (IntPtr klass, uint prop_id, IntPtr name);
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public static void OverrideProperty (IntPtr declaring_class, string name)
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public static void OverrideProperty (IntPtr oclass, uint property_id, string name)
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{
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IntPtr native_name = GLib.Marshaller.StringToPtrGStrdup (name);
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g_object_class_override_property (declaring_class, idx, native_name);
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g_object_class_override_property (oclass, property_id, native_name);
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}
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[Obsolete ("Use OverrideProperty(oclass,property_id,name)")]
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public static void OverrideProperty (IntPtr declaring_class, string name)
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{
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OverrideProperty (declaring_class, idx, name);
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idx++;
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}
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@ -301,46 +478,6 @@ namespace GLib {
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return pspec.Handle;
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}
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static void AddProperties (GType gtype, System.Type t, bool register_instance_prop, ref bool handlers_overridden)
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{
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if (register_instance_prop) {
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IntPtr declaring_class = gtype.GetClassPtr ();
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ParamSpec pspec = new ParamSpec ("gtk-sharp-managed-instance", "", "", GType.Pointer, ParamFlags.Writable | ParamFlags.ConstructOnly);
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g_object_class_install_property (declaring_class, idx, pspec.Handle);
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idx++;
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}
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foreach (PropertyInfo pinfo in t.GetProperties (BindingFlags.Instance | BindingFlags.Public | BindingFlags.DeclaredOnly)) {
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foreach (object attr in pinfo.GetCustomAttributes (typeof (PropertyAttribute), false)) {
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if(pinfo.GetIndexParameters().Length > 0)
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throw(new InvalidOperationException(String.Format("GLib.RegisterPropertyAttribute cannot be applied to property {0} of type {1} because the property expects one or more indexed parameters", pinfo.Name, t.FullName)));
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if (!handlers_overridden) {
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IntPtr class_ptr = gtype.GetClassPtr ();
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GObjectClass gobject_class = (GObjectClass) Marshal.PtrToStructure (class_ptr, typeof (GObjectClass));
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gobject_class.get_prop_cb = GetPropertyHandler;
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gobject_class.set_prop_cb = SetPropertyHandler;
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Marshal.StructureToPtr (gobject_class, class_ptr, false);
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handlers_overridden = true;
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}
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PropertyAttribute property_attr = attr as PropertyAttribute;
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try {
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IntPtr param_spec = RegisterProperty (gtype, property_attr.Name, property_attr.Nickname, property_attr.Blurb, idx, (GType) pinfo.PropertyType, pinfo.CanRead, pinfo.CanWrite);
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Type type = (Type)gtype;
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Dictionary<IntPtr, PropertyInfo> gtype_properties;
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if (!Properties.TryGetValue (type, out gtype_properties)) {
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gtype_properties = new Dictionary<IntPtr, PropertyInfo> ();
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Properties [type] = gtype_properties;
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}
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gtype_properties.Add (param_spec, pinfo);
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idx++;
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} catch (ArgumentException) {
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throw new InvalidOperationException (String.Format ("GLib.PropertyAttribute cannot be applied to property {0} of type {1} because the return type of the property is not supported", pinfo.Name, t.FullName));
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}
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}
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}
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}
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[UnmanagedFunctionPointer (CallingConvention.Cdecl)]
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delegate void GetPropertyDelegate (IntPtr GObject, uint property_id, ref GLib.Value value, IntPtr pspec);
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@ -410,71 +547,13 @@ namespace GLib {
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[DllImport ("libgobject-2.0-0.dll", CallingConvention = CallingConvention.Cdecl)]
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static extern void g_type_add_interface_static (IntPtr gtype, IntPtr iface_type, ref GInterfaceInfo info);
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static void AddInterfaces (GType gtype, Type t, ref bool handlers_overridden)
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{
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foreach (Type iface in t.GetInterfaces ()) {
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if (!iface.IsDefined (typeof (GInterfaceAttribute), true))
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continue;
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GInterfaceAttribute attr = iface.GetCustomAttributes (typeof (GInterfaceAttribute), false) [0] as GInterfaceAttribute;
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GInterfaceAdapter adapter = Activator.CreateInstance (attr.AdapterType, null) as GInterfaceAdapter;
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if (!handlers_overridden) {
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IntPtr class_ptr = gtype.GetClassPtr ();
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GObjectClass gobject_class = (GObjectClass) Marshal.PtrToStructure (class_ptr, typeof (GObjectClass));
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gobject_class.get_prop_cb = GetPropertyHandler;
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gobject_class.set_prop_cb = SetPropertyHandler;
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Marshal.StructureToPtr (gobject_class, class_ptr, false);
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handlers_overridden = true;
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}
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if (!iface.IsAssignableFrom (t.BaseType)) {
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GInterfaceInfo info = adapter.Info;
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info.Data = gtype.GetClassPtr ();
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//FIXME: overiding prop is done inside the init of interface adapter
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// not sure that it is the good solution but
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// it is the only one I found without exception or loop
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g_type_add_interface_static (gtype.Val, adapter.GType.Val, ref info);
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}
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foreach (PropertyInfo p in iface.GetProperties ()) {
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PropertyAttribute[] attrs = p.GetCustomAttributes (typeof (PropertyAttribute), true) as PropertyAttribute [];
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if (attrs.Length == 0)
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continue;
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PropertyAttribute property_attr = attrs [0];
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PropertyInfo declared_prop = t.GetProperty (p.Name, BindingFlags.Public | BindingFlags.Instance);
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if (declared_prop == null)
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continue;
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IntPtr param_spec = FindInterfaceProperty (adapter.GType, property_attr.Name);
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Dictionary<IntPtr, PropertyInfo> props;
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if (!Properties.TryGetValue (t, out props)) {
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props = new Dictionary<IntPtr, PropertyInfo> ();
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Properties [t] = props;
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}
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props [param_spec] = declared_prop;
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}
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}
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}
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protected internal static GType RegisterGType (System.Type t)
|
||||
{
|
||||
GType gtype = GType.RegisterGObjectType (t);
|
||||
bool is_first_subclass = gtype.GetBaseType () == gtype.GetThresholdType ();
|
||||
|
||||
if (is_first_subclass) {
|
||||
IntPtr class_ptr = gtype.GetClassPtr ();
|
||||
GObjectClass gobject_class = (GObjectClass) Marshal.PtrToStructure (class_ptr, typeof (GObjectClass));
|
||||
gobject_class.constructor_cb = ConstructorHandler;
|
||||
gobject_class.get_prop_cb = GetPropertyHandler;
|
||||
gobject_class.set_prop_cb = SetPropertyHandler;
|
||||
Marshal.StructureToPtr (gobject_class, class_ptr, false);
|
||||
}
|
||||
//this is a deprecated way of tracking a property counter,
|
||||
//but we may still need it for backwards compatibility
|
||||
idx = 1;
|
||||
bool handlers_overridden = is_first_subclass;
|
||||
AddProperties (gtype, t, is_first_subclass, ref handlers_overridden);
|
||||
ConnectDefaultHandlers (gtype, t);
|
||||
InvokeTypeInitializers (gtype, t);
|
||||
AddInterfaces (gtype, t, ref handlers_overridden);
|
||||
return gtype;
|
||||
|
||||
return new ClassInitializer (t).Init ();
|
||||
}
|
||||
|
||||
protected GType LookupGType ()
|
||||
|
|
|
|||
Loading…
Reference in a new issue