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// -*- 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 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 <glibmm/threads.h> // Needed until the next ABI break.
#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 disabled, 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(custom_type_name_ && !is_anonymous_custom_())
{
if (gobject_)
{
GObjectClass *const instance_class = G_OBJECT_GET_CLASS(gobject_);
const GType iface_type = interface_class.get_type();
if(!g_type_interface_peek(instance_class, iface_type))
{
void* const g_iface = g_type_default_interface_ref(iface_type);
// Override the properties of the derived interface, if any.
const GType custom_type = G_OBJECT_CLASS_TYPE(instance_class);
Class::iface_properties_type* props = static_cast<Class::iface_properties_type*>(
g_type_get_qdata(custom_type, Class::iface_properties_quark));
if(!props)
{
props = new Class::iface_properties_type();
g_type_set_qdata(custom_type, Class::iface_properties_quark, props);
}
const guint n_existing_props = props->size();
guint n_iface_props = 0;
GParamSpec** iface_props = g_object_interface_list_properties(g_iface, &n_iface_props);
for(guint p = 0; p < n_iface_props; p++)
{
GValue* g_value = g_new0(GValue, 1);
g_value_init(g_value, iface_props[p]->value_type);
g_param_value_set_default(iface_props[p], g_value);
props->push_back(g_value);
const gchar* prop_name = g_param_spec_get_name(iface_props[p]);
GParamSpec* new_spec = g_param_spec_override(prop_name, iface_props[p]);
g_object_class_install_property(instance_class, p + 1 + n_existing_props, new_spec);
}
interface_class.add_interface(custom_type);
g_type_default_interface_unref(g_iface);
g_free(iface_props);
}
}
else // gobject_ == 0
{
// The GObject is not instantiated yet. Add to the custom_interface_classes
// and add the interface in the Glib::Object constructor.
Threads::Mutex::Lock lock(*extra_object_base_data_mutex);
extra_object_base_data[this].custom_interface_classes.push_back(&interface_class);
}
}
}
Interface::Interface(GObject* castitem)
{
// Connect GObject and wrapper instances.
ObjectBase::initialize(castitem);
}
Interface::Interface()
{}
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
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