src/apps/icon-o-matic/generic/selection/Selection.h

   1 /*
   2  * Copyright 2006, Haiku.
   3  * Distributed under the terms of the MIT License.
   4  *
   5  * Authors:
   6  *              Stephan Aßmus <superstippi@gmx.de>
   7  */
   8
   9 #ifndef SELECTION_H
  10 #define SELECTION_H
  11
  12 #include <List.h>
  13
  14 #include "Observable.h"
  15
  16 class Selectable;
  17
  18 class Selection : public Observable {
  19  public:
  20                                                                 Selection();
  21         virtual                                         ~Selection();
  22
  23         // modify selection
  24                         bool                            Select(Selectable* object,
  25                                                                            bool extend = false);
  26                         void                            Deselect(Selectable* object);
  27                         void                            DeselectAll();
  28
  29         // query selection
  30                         Selectable*                     SelectableAt(int32 index) const;
  31                         Selectable*                     SelectableAtFast(int32 index) const;
  32                         int32                           CountSelected() const;
  33
  34  private:
  35                         void                            _DeselectAllExcept(Selectable* object);
  36
  37                         BList                           fSelected;
  38 };
  39
  40 #endif  // SELECTION_H