kworship/songdb/KwSongdbNode.cpp

   1 /***************************************************************************
   2  *   This file is part of KWorship.                                        *
   3  *   Copyright 2008 James Hogan <james@albanarts.com>                      *
   4  *                                                                         *
   5  *   KWorship is free software: you can redistribute it and/or modify      *
   6  *   it under the terms of the GNU General Public License as published by  *
   7  *   the Free Software Foundation, either version 2 of the License, or     *
   8  *   (at your option) any later version.                                   *
   9  *                                                                         *
  10  *   KWorship is distributed in the hope that it will be useful,           *
  11  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  12  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  13  *   GNU General Public License for more details.                          *
  14  *                                                                         *
  15  *   You should have received a copy of the GNU General Public License     *
  16  *   along with KWorship.  If not, write to the Free Software Foundation,  *
  17  *   Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.   *
  18  ***************************************************************************/
  19
  20 /**
  21  * @file KwSongdbNode.cpp
  22  * @brief A node on a song database tree.
  23  * @author James Hogan <james@albanarts.com>
  24  */
  25
  26 #include "KwSongdbNode.h"
  27 #include "KwSongdbSong.h"
  28 #include "KwSongdbVersion.h"
  29
  30 #include <cassert>
  31
  32 /*
  33  * Constructors + destructor.
  34  */
  35
  36 /// Primary constructor.
  37 KwSongdbNode::KwSongdbNode(KwSongdbNode* parent)
  38 : DefaultModelNode(parent)
  39 {
  40 }
  41
  42 /// Destructor.
  43 KwSongdbNode::~KwSongdbNode()
  44 {
  45 }
  46
  47 /*
  48  * Associated data access
  49  */
  50
  51 /// Get the song associated with this node.
  52 KwSongdbSong* KwSongdbNode::associatedSong()
  53 {
  54   if (0 != getParent())
  55   {
  56     KwSongdbNode* parent = dynamic_cast<KwSongdbNode*>(getParent());
  57     Q_ASSERT(0 != parent);
  58     KwSongdbVersion* version = parent->associatedSongVersion();
  59     if (0 != version)
  60     {
  61       return version->song();
  62     }
  63   }
  64   return 0;
  65 }
  66
  67 /// Get the song version associated with this node.
  68 KwSongdbVersion* KwSongdbNode::associatedSongVersion()
  69 {
  70   if (0 != getParent())
  71   {
  72     KwSongdbNode* parent = dynamic_cast<KwSongdbNode*>(getParent());
  73     Q_ASSERT(parent);
  74     return parent->associatedSongVersion();
  75   }
  76   return 0;
  77 }
  78
  79 /*
  80  * Drag and drop
  81  */
  82
  83 /// Get flags for this item.
  84 Qt::ItemFlags KwSongdbNode::getFlags(Qt::ItemFlags defaultFlags) const
  85 {
  86   return defaultFlags;
  87 }
  88
  89 /// Get mime data string for this set of songs.
  90 QString KwSongdbNode::mimeData()
  91 {
  92   return QString();
  93 }
  94