pidgin/pidgin

Use G_DECLARE_DERIVABLE_TYPE for PurpleConversation and additional cleanups

The setters for PurpleConversation are kind of crappy because of the
conversation cache in the purple_conversations api, which we'll address at a
later time.

Testing Done:
Compiled and ran locally, parted a chat and just signed out to verify no new issues.

Reviewed at https://reviews.imfreedom.org/r/613/
/* pidgin
*
* Pidgin is the legal property of its developers, whose names are too numerous
* to list here. Please refer to the COPYRIGHT file distributed with this
* source distribution.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02111-1301 USA
*
*/
#if !defined(PIDGIN_GLOBAL_HEADER_INSIDE) && !defined(PIDGIN_COMPILATION)
# error "only <pidgin.h> may be included directly"
#endif
#ifndef _PIDGINPLUGINPREF_H_
#define _PIDGINPLUGINPREF_H_
/**
* SECTION:gtkpluginpref
* @section_id: pidgin-gtkpluginpref
* @short_description: <filename>gtkpluginpref.h</filename>
* @title: Plugin Preferences
*/
#include <purple.h>
G_BEGIN_DECLS
/**
* pidgin_plugin_pref_create_frame:
* @frame: PurplePluginPrefFrame
*
* Creates a Gtk Preference frame for a PurplePluginPrefFrame
*
* Returns: (transfer full): The gtk preference frame
*/
GtkWidget *pidgin_plugin_pref_create_frame(PurplePluginPrefFrame *frame);
G_END_DECLS
#endif /* _PIDGINPLUGINPREF_H_ */