Initial revision

git-svn-id: svn://localhost/trunk/ardour2@4 d708f5d6-7413-0410-9779-e7cbd77b26cf

libs/glibmm2/glibmm/interface.cc

@@ -0,0 +1,95 @@
+// -*- c++ -*-
+/* $Id$ */
+
+/* Copyright (C) 2002 The gtkmm Development Team
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library 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
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the Free
+ * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <glibmm/interface.h>
+#include <glibmm/private/interface_p.h>
+
+
+namespace Glib
+{
+
+/**** Glib::Interface_Class ************************************************/
+
+void Interface_Class::add_interface(GType instance_type) const
+{
+  //This check is distabled, because it checks whether any of the types's bases implement the interface, not just the specific type.
+  //if( !g_type_is_a(instance_type, gtype_) ) //For convenience, don't complain about calling this twice.
+  //{
+    const GInterfaceInfo interface_info =
+    {
+      class_init_func_,
+      0, // interface_finalize
+      0, // interface_data
+    };
+
+    g_type_add_interface_static(instance_type, gtype_, &interface_info);
+  //}
+}
+
+
+/**** Interface Glib::Interface ********************************************/
+
+Interface::Interface(const Interface_Class& interface_class)
+{
+  //gobject_ will be set in the Object constructor.
+  //Any instantiable class that derives from Interface should also inherit from Object.
+
+  // If I understand it correctly, gobject_ shouldn't be 0 now.  daniel.
+  // TODO: Make this a g_assert() if the assumption above is correct.
+
+  g_return_if_fail(gobject_ != 0);
+
+  if(custom_type_name_ && !is_anonymous_custom_())
+  {
+    void *const instance_class = G_OBJECT_GET_CLASS(gobject_);
+
+    if(!g_type_interface_peek(instance_class, interface_class.get_type()))
+    {
+      interface_class.add_interface(G_OBJECT_CLASS_TYPE(instance_class));
+    }
+  }
+}
+
+Interface::Interface(GObject* castitem)
+{
+  // Connect GObject and wrapper instances.
+  ObjectBase::initialize(castitem);
+}
+
+Interface::~Interface()
+{}
+
+GType Interface::get_type()
+{
+  return G_TYPE_INTERFACE;
+}
+
+GType Interface::get_base_type()
+{
+  return G_TYPE_INTERFACE;
+}
+
+RefPtr<ObjectBase> wrap_interface(GObject* object, bool take_copy)
+{
+  return Glib::RefPtr<ObjectBase>( wrap_auto(object, take_copy) );
+}
+
+} // namespace Glib
+