digikam

abstractalbummodelpriv.h

00001 /* ============================================================
00002  *
00003  * This file is a part of digiKam project
00004  * http://www.digikam.org
00005  *
00006  * Date        : 2009-03-23
00007  * Description : Qt Model for Albums - abstract base classes private header
00008  *
00009  * Copyright (C) 2008-2009 by Marcel Wiesweg <marcel dot wiesweg at gmx dot de>
00010  *
00011  * This program is free software; you can redistribute it
00012  * and/or modify it under the terms of the GNU General
00013  * Public License as published by the Free Software Foundation;
00014  * either version 2, or (at your option)
00015  * any later version.
00016  *
00017  * This program is distributed in the hope that it will be useful,
00018  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00019  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00020  * GNU General Public License for more details.
00021  *
00022  * ============================================================ */
00023 
00024 #ifndef ABSTRACTALBUMMODELPRIVATE_H
00025 #define ABSTRACTALBUMMODELPRIVATE_H
00026 
00027 namespace Digikam
00028 {
00029 
00030 class AlbumModelPriv
00031 {
00032 public:
00033 
00034     AlbumModelPriv()
00035     {
00036         rootAlbum     = 0;
00037         type          = Album::PHYSICAL;
00038         rootBehavior  = AbstractAlbumModel::IncludeRootAlbum;
00039         addingAlbum   = 0;
00040         removingAlbum = 0;
00041         itemDrag      = true;
00042         itemDrop      = true;
00043         dragDropHandler
00044                       = 0;
00045     }
00046 
00047     Album            *rootAlbum;
00048     Album::Type       type;
00049     AbstractAlbumModel::RootAlbumBehavior
00050                       rootBehavior;
00051     bool              itemDrag;
00052     bool              itemDrop;
00053     AlbumModelDragDropHandler
00054                      *dragDropHandler;
00055 
00056     Album            *addingAlbum;
00057     Album            *removingAlbum;
00058 
00059     Album *findNthChild(Album *parent, int n)
00060     {
00061         // return the n-th of the children of parent, or 0
00062         Album *a = parent->firstChild();
00063         if (!a)
00064             return 0;
00065         for (int i=0; i<n; ++i)
00066         {
00067             a = a->next();
00068             if (!a)
00069                 return 0;
00070         }
00071         return a;
00072     }
00073 
00074     int findIndexAsChild(Album *child)
00075     {
00076         // return index of child in the list of children of its parent
00077         Album *parent = child->parent();
00078         if (!parent)
00079             return 0;
00080         Album *a = parent->firstChild();
00081         int i = 0;
00082         while (a != child)
00083         {
00084             a = a->next();
00085             if (!a)
00086                 return -1;
00087             ++i;
00088         }
00089         return i;
00090     }
00091 
00092     int numberOfChildren(Album *parent)
00093     {
00094         Album *a = parent->firstChild();
00095         int count = 0;
00096         while (a)
00097         {
00098             ++count;
00099             a = a->next();
00100         }
00101         return count;
00102     }
00103 };
00104 
00105 } // namespace Digikam
00106 
00107 #endif // ABSTRACTALBUMMODELPRIVATE_H
digikam

abstractalbummodelpriv.h

digikam

API Reference
