/*
 * Copyright 2006, Haiku.
 * Distributed under the terms of the MIT License.
 *
 * Authors:
 *              Stephan Aßmus <superstippi@gmx.de>
 */

#ifndef SELECTION_H
#define SELECTION_H

#include <List.h>

#include "Observable.h"

class Selectable;

class Selection : public Observable {
 public:
                                                                Selection();
        virtual                                         ~Selection();

        // modify selection
                        bool                            Select(Selectable* object,
                                                                           bool extend = false);
                        void                            Deselect(Selectable* object);
                        void                            DeselectAll();

        // query selection
                        Selectable*                     SelectableAt(int32 index) const;
                        Selectable*                     SelectableAtFast(int32 index) const;
                        int32                           CountSelected() const;

 private:
                        void                            _DeselectAllExcept(Selectable* object);

                        BList                           fSelected;
};

#endif  // SELECTION_H