src/collection/support/MemoryMatcher.h

   1 /***************************************************************************
   2  *   Copyright (c) 2007  Nikolaj Hald Nielsen <nhnFreespirit@gmail.com>    *
   3  *      (C) 2007 Maximilian Kossick <maximilian.kossick@googlemail.com>    *
   4  *                                                                         *
   5  *   This program 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  *   This program 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 this program; if not, write to the                         *
  17  *   Free Software Foundation, Inc.,                                       *
  18  *   51 Franklin Street, Fifth Floor, Boston, MA  02111-1307, USA.         *
  19  ***************************************************************************/
  20
  21 #ifndef MEMORYMATCHER_H
  22 #define MEMORYMATCHER_H
  23
  24 #include "MemoryCollection.h"
  25 #include "meta.h"
  26
  27 /**
  28 A helper class for finding items in a MemoryCollection
  29
  30         @author
  31 */
  32 class MemoryMatcher{
  33     public:
  34         MemoryMatcher();
  35         virtual ~MemoryMatcher();
  36         virtual Meta::TrackList match( MemoryCollection *memColl) = 0;
  37         virtual Meta::TrackList match( const Meta::TrackList &tracks ) = 0;
  38
  39         bool isLast() const;
  40         void setNext( MemoryMatcher *next );
  41         MemoryMatcher* next() const;
  42
  43     private:
  44         MemoryMatcher *m_next;
  45 };
  46
  47
  48 class TrackMatcher : public MemoryMatcher
  49 {
  50     public:
  51         TrackMatcher( Meta::TrackPtr track );
  52         virtual Meta::TrackList match( MemoryCollection *memColl );
  53         virtual Meta::TrackList match( const Meta::TrackList &tracks );
  54
  55     private:
  56         Meta::TrackPtr m_track;
  57 };
  58
  59
  60 class ArtistMatcher : public MemoryMatcher
  61 {
  62     public:
  63         ArtistMatcher( Meta::ArtistPtr artist );
  64         virtual Meta::TrackList match( MemoryCollection *memColl );
  65         virtual Meta::TrackList match( const Meta::TrackList &tracks );
  66
  67     private:
  68         Meta::ArtistPtr m_artist;
  69 };
  70
  71 class AlbumMatcher : public MemoryMatcher
  72 {
  73     public:
  74         AlbumMatcher( Meta::AlbumPtr album );
  75         virtual Meta::TrackList match( MemoryCollection *memColl );
  76         virtual Meta::TrackList match( const Meta::TrackList &tracks );
  77
  78     private:
  79         Meta::AlbumPtr m_album;
  80 };
  81
  82 class GenreMatcher : public MemoryMatcher
  83 {
  84     public:
  85         GenreMatcher( Meta::GenrePtr genre );
  86         virtual Meta::TrackList match( MemoryCollection *memColl );
  87         virtual Meta::TrackList match( const Meta::TrackList &tracks );
  88
  89     private:
  90         Meta::GenrePtr m_genre;
  91 };
  92
  93 class ComposerMatcher : public MemoryMatcher
  94 {
  95     public:
  96         ComposerMatcher( Meta::ComposerPtr composer );
  97         virtual Meta::TrackList match( MemoryCollection *memColl );
  98         virtual Meta::TrackList match( const Meta::TrackList &tracks );
  99
 100     private:
 101         Meta::ComposerPtr m_composer;
 102 };
 103
 104 class YearMatcher : public MemoryMatcher
 105 {
 106     public:
 107         YearMatcher( Meta::YearPtr year );
 108         virtual Meta::TrackList match( MemoryCollection *memColl );
 109         virtual Meta::TrackList match( const Meta::TrackList &tracks );
 110
 111     private:
 112         Meta::YearPtr m_year;
 113 };
 114
 115
 116 #endif