//  $Id: triple_button.hpp 3059 2007-09-02 03:48:52Z grumbel $
//
//  Pingus - A free Lemmings clone
//  Copyright (C) 2000 Ingo Ruhnke <grumbel@gmx.de>
//
//  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.

#ifndef HEADER_PINGUS_INPUT_TRIPLE_BUTTON_HXX
#define HEADER_PINGUS_INPUT_TRIPLE_BUTTON_HXX

#include "../button.hpp"

namespace Input {
namespace Buttons {

/**
   @brief allows three buttons to be used in combination

   XML definition: <triple-button> <button1><button2><button3> </triple-button>

   This class allows combinations like CTRL-ALT-R whereby it's important that the first
   two keys are pressed before the third else the TripleButton itself won't change it's
   own state to pressed. The order in which the first two keys are pressed is of no
   importance, such behaviour may be created by using nested DoubleButtons.
*/
class TripleButton : public Button {

private:
  Button* const button1;
  Button* const button2;
  Button* const button3;
  bool          first_second_pressed;
  bool          ignore_third;

public:
  TripleButton (Button* button1_, Button* button2_, Button* button3_);
  ~TripleButton ();

  virtual bool is_pressed () const;
  virtual void update (float delta);

private:
  TripleButton (const TripleButton&);
  TripleButton& operator= (const TripleButton&);
};

} // namespace Buttons
} // namespace Input

#endif

/* EOF */