/usr/include/dar/mem_ui.hpp is in libdar-dev 2.4.8-1ubuntu1.
This file is owned by root:root, with mode 0o644.
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// dar - disk archive - a backup/restoration program
// Copyright (C) 2002-2052 Denis Corbin
//
// 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
//
// to contact the author : http://dar.linux.free.fr/email.html
/*********************************************************************/
/// \file mem_ui.hpp
/// \brief class mem_ui definition. This class is to be used as parent class to handle user_interaction object management
/// \ingroup Private
#ifndef MEM_UI_HPP
#define MEM_UI_HPP
#include "/usr/include/dar/libdar_my_config.h"
#include "/usr/include/dar/user_interaction.hpp"
namespace libdar
{
/// \addtogroup Private
/// @{
/// class mem_ui to keep a copy of a user_interaction object
/// this class is targeted for inheritance (it is advised to use a "protected"
/// inheritance, not a "public" one). Instead of having all
/// the stuf of managing, cloning, releasing a pointer on user_interaction
/// a class simply put itslef as inherited from mem_ui to take the benefit
/// of this implementation, once and for all. Use this class with caution
/// espetially for class which will generate a ton of objects, as this will
/// duplicate the user_interaction object in the same number.
/// sometimes it is more efficient to have the user_interaction object as
/// parameter of the constructor, using it if necessary while constructing the
/// object only. In that situation, if the user_interaction is not need any
/// further after construction, no need to make the class inherit from mem_ui.
class mem_ui
{
public:
/// constructor
/// \param[in] dialog the user_interaction object to clone and store
/// If you plan to use mem_ui, you should pass the user_interaction to its constructor
/// for you later be able to call get_ui() at any time from the inherited class
mem_ui(user_interaction & dialog) { set_ui(dialog); };
/// the copy constructor
/// need to be called from the copy constructor of any inherited class that explicitely define one
mem_ui(const mem_ui & ref) { copy_from(ref); };
/// destructor
/// it is declared as virtual, for precaution, as it may not be very frequent to
/// release an object having just a mem_ui pointer on it.
virtual ~mem_ui() { detruire(); };
/// assignement operator
/// you need to call it from the inherited class assignement operator
/// if the inherited class explicitely defines its own one.
const mem_ui & operator = (const mem_ui & ref) { detruire(); copy_from(ref); return *this; };
/// get access to the user_interaction cloned object
/// \return a reference to the clone object. This reference stays valid during all
/// the live of the object.
user_interaction & get_ui() const;
private:
user_interaction *ui;
void detruire();
void copy_from(const mem_ui & ref);
void set_ui(user_interaction & dialog);
};
/// @}
} // end of namespace
#endif
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