/* 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.
 */

namespace Gst
{

bool Preset::get_meta(const Glib::ustring& name, const Glib::ustring& tag,
  Glib::ustring& value) const
{
  gchar* meta = 0;

  gboolean result = gst_preset_get_meta(const_cast<GstPreset*>(gobj()),
    name.c_str(), tag.c_str(), &meta);
  value = meta;
  g_free(meta);
  return result;
}

gchar** Preset_Class::get_preset_names_vfunc_callback(GstPreset* self)
{
  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.
    {
      try // Trap C++ exceptions which would normally be lost because this is a C callback.
      {
        // Call the virtual member method, which derived classes might override.
        return const_cast<gchar**>((obj->get_preset_names_vfunc()).data());
      }
      catch(...)
      {
        Glib::exception_handlers_invoke();
      }
    }
  }
  
  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->get_preset_names)
    return (*base->get_preset_names)(self);


  typedef gchar** RType;
  return RType();
}
gchar** Preset_Class::get_property_names_vfunc_callback(GstPreset* self)
{
  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.
    {
      try // Trap C++ exceptions which would normally be lost because this is a C callback.
      {
        // Call the virtual member method, which derived classes might override.
        return const_cast<gchar**>((obj->get_property_names_vfunc()).data());
      }
      catch(...)
      {
        Glib::exception_handlers_invoke();
      }
    }
  }
  
  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->get_property_names)
    return (*base->get_property_names)(self);


  typedef gchar** RType;
  return RType();
}
gboolean Preset_Class::get_meta_vfunc_callback(GstPreset* self, const gchar* name, const gchar* tag, gchar** value)
{
  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.
    {
      try // Trap C++ exceptions which would normally be lost because this is a C callback.
      {
        Glib::ustring cpp_value;
        // Call the virtual member method, which derived classes might override.
        const gboolean result = static_cast<int>(obj->get_meta_vfunc(Glib::convert_const_gchar_ptr_to_ustring(name)
, Glib::convert_const_gchar_ptr_to_ustring(tag) , cpp_value));
        *value = g_strdup(cpp_value.c_str());
        return result;
      }
      catch(...)
      {
        Glib::exception_handlers_invoke();
      }
    }
  }
  
  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->get_meta)
    return (*base->get_meta)(self, name, tag, value);


  typedef gboolean RType;
  return RType();
}
Glib::StringArrayHandle Gst::Preset::get_preset_names_vfunc() 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->get_preset_names)
    return Glib::StringArrayHandle((*base->get_preset_names)(const_cast<GstPreset*>(gobj())), Glib::OWNERSHIP_DEEP);

  typedef Glib::StringArrayHandle RType;
  return Glib::StringArrayHandle(0, Glib::OWNERSHIP_NONE);
}
Glib::StringArrayHandle Gst::Preset::get_property_names_vfunc() 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->get_property_names)
    return Glib::StringArrayHandle((*base->get_property_names)(const_cast<GstPreset*>(gobj())), Glib::OWNERSHIP_DEEP);

  typedef Glib::StringArrayHandle RType;
  return Glib::StringArrayHandle(0, Glib::OWNERSHIP_NONE);
}
bool Gst::Preset::get_meta_vfunc(const Glib::ustring& name,
  const Glib::ustring& tag, Glib::ustring& value) 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->get_meta)
  {
    gchar* gst_value;
    const bool result = (*base->get_meta)(const_cast<GstPreset*>(gobj()),((name).c_str()),((tag).c_str()), &gst_value);
    value = gst_value;
    g_free(gst_value);
    return result;
  }

  typedef bool RType;
  return RType();
}

}
