// Generated by gtkmmproc -- DO NOT MODIFY!


#include <gstreamermm/interface.h>
#include <gstreamermm/private/interface_p.h>

/* gstreamermm - a C++ wrapper for gstreamer
 *
 * Copyright 2008 The gstreamermm Development Team
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free
 * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */

#include <gst/gstinterface.h>

namespace
{
} // anonymous namespace


namespace Glib
{

Glib::RefPtr<Gst::Interface> wrap(GstImplementsInterface* object, bool take_copy)
{
  return Glib::RefPtr<Gst::Interface>( dynamic_cast<Gst::Interface*> (Glib::wrap_auto_interface<Gst::Interface> ((GObject*)(object), take_copy)) );
  //We use dynamic_cast<> in case of multiple inheritance.
}

} // namespace Glib


namespace Gst
{


/* The *_Class implementation: */

const Glib::Interface_Class& Interface_Class::init()
{
  if(!gtype_) // create the GType if necessary
  {
    // Glib::Interface_Class has to know the interface init function
    // in order to add interfaces to implementing types.
    class_init_func_ = &Interface_Class::iface_init_function;

    // We can not derive from another interface, and it is not necessary anyway.
    gtype_ = gst_implements_interface_get_type();
  }

  return *this;
}

void Interface_Class::iface_init_function(void* g_iface, void*)
{
  BaseClassType *const klass = static_cast<BaseClassType*>(g_iface);

  //This is just to avoid an "unused variable" warning when there are no vfuncs or signal handlers to connect.
  //This is a temporary fix until I find out why I can not seem to derive a GtkFileChooser interface. murrayc
  g_assert(klass != 0); 

  klass->supported = &supported_vfunc_callback;

}

gboolean Interface_Class::supported_vfunc_callback(GstImplementsInterface* self, GType iface_type)
{
  Glib::ObjectBase *const obj_base = static_cast<Glib::ObjectBase*>(
      Glib::ObjectBase::_get_current_wrapper((GObject*)self));

  // Non-gtkmmproc-generated custom classes implicitly call the default
  // Glib::ObjectBase constructor, which sets is_derived_. But gtkmmproc-
  // generated classes can use this optimisation, which avoids the unnecessary
  // parameter conversions if there is no possibility of the virtual function
  // being overridden:
  if(obj_base && obj_base->is_derived_())
  {
    CppObjectType *const obj = dynamic_cast<CppObjectType* const>(obj_base);
    if(obj) // This can be NULL during destruction.
    {
      #ifdef GLIBMM_EXCEPTIONS_ENABLED
      try // Trap C++ exceptions which would normally be lost because this is a C callback.
      {
      #endif //GLIBMM_EXCEPTIONS_ENABLED
        // Call the virtual member method, which derived classes might override.
        return static_cast<int>(obj->supported_vfunc(iface_type));
      #ifdef GLIBMM_EXCEPTIONS_ENABLED
      }
      catch(...)
      {
        Glib::exception_handlers_invoke();
      }
      #endif //GLIBMM_EXCEPTIONS_ENABLED
    }
  }
  
  BaseClassType *const base = static_cast<BaseClassType*>(
      g_type_interface_peek_parent( // Get the parent interface of the interface (The original underlying C interface).
g_type_interface_peek(G_OBJECT_GET_CLASS(self), CppObjectType::get_type()) // Get the interface.
)  );

  // Call the original underlying C function:
  if(base && base->supported)
    return (*base->supported)(self, iface_type);


  typedef gboolean RType;
  return RType();
}


Glib::ObjectBase* Interface_Class::wrap_new(GObject* object)
{
  return new Interface((GstImplementsInterface*)(object));
}


/* The implementation: */

Interface::Interface()
:
  Glib::Interface(interface_class_.init())
{}

Interface::Interface(GstImplementsInterface* castitem)
:
  Glib::Interface((GObject*)(castitem))
{}

Interface::Interface(const Glib::Interface_Class& interface_class)
: Glib::Interface(interface_class)
{
}

Interface::~Interface()
{}

// static
void Interface::add_interface(GType gtype_implementer)
{
  interface_class_.init().add_interface(gtype_implementer);
}

Interface::CppClassType Interface::interface_class_; // initialize static member

GType Interface::get_type()
{
  return interface_class_.init().get_type();
}


GType Interface::get_base_type()
{
  return gst_implements_interface_get_type();
}


bool Interface::element_implements(const Glib::RefPtr<const Gst::Element>& element, GType iface_type)
{
  return gst_element_implements_interface(const_cast<GstElement*>(Glib::unwrap(element)), iface_type);
}


bool Gst::Interface::supported_vfunc(GType iface_type) const
{
  BaseClassType *const base = static_cast<BaseClassType*>(
      g_type_interface_peek_parent( // Get the parent interface of the interface (The original underlying C interface).
g_type_interface_peek(G_OBJECT_GET_CLASS(gobject_), CppObjectType::get_type()) // Get the interface.
)  );

  if(base && base->supported)
    return (*base->supported)(const_cast<GstImplementsInterface*>(gobj()),iface_type);

  typedef bool RType;
  return RType();
}


} // namespace Gst


