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selectable.h

/*
    Copyright (C) 2004 Paul Davis 

    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., 675 Mass Ave, Cambridge, MA 02139, USA.

*/

#ifndef __ardour_gtk_selectable_h__
#define __ardour_gtk_selectable_h__

#include <sigc++/signal.h>

class Selectable : public virtual sigc::trackable
{
  public:
      Selectable() {
            _selected = false;
      }

      virtual ~Selectable() {}

      virtual void set_selected (bool yn) {
            if (yn != _selected) {
                  _selected = yn;
                  Selected (_selected); /* EMIT_SIGNAL */
            }
      }

      bool get_selected() const {
            return _selected;
      }

      /** Emitted when the selected status of this Selectable changes */
      sigc::signal<void, bool> Selected ;

  protected:
      bool _selected;
};

#endif /* __ardour_gtk_selectable_h__ */

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