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/*
* UltraStar Deluxe - Karaoke Game
*
* UltraStar Deluxe 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; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*
*/
#ifndef CONTROL_HPP
#define CONTROL_HPP
#include <list>
namespace usdx
{
/**
* Base class for all controls, either the drawable ones as well as the
* hidden ones. This class handles a owner slave relation ship and handles
* automatic destruction on destruction of the owner,
*/
class Control
{
private:
/**
* Owner of this control. The owner is responsible for destruction.
*/
Control* owner;
protected:
/**
* All slaves the control owns. All these controls should be deleted
* during decontruction of this control.
*/
std::list<const Control*> slaves;
void add_slave(const Control*);
void remove_slave(const Control*);
public:
Control(Control*);
virtual ~Control();
/**
* Change the current owner of this component. This requires to
* unregister this control at the old owner and register it again
* withthe new owner.
*/
void set_owner(Control*);
/**
* Returns the current owner of this control.
*/
const Control* get_owner(void) const;
};
}
#endif
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