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  02110-1301, USA.         *
  19  ***************************************************************************/
  20
  21 #ifndef MEMORYMATCHER_H
  22 #define MEMORYMATCHER_H
  23
  24 #include "amarok_export.h"
  25 #include "MemoryCollection.h"
  26 #include "Meta.h"
  27
  28 /**
  29 A helper class for finding items in a MemoryCollection
  30
  31         @author
  32 */
  33 class AMAROK_EXPORT MemoryMatcher{
  34     public:
  35         MemoryMatcher();
  36         virtual ~MemoryMatcher();
  37         virtual Meta::TrackList match( MemoryCollection *memColl) = 0;
  38         virtual Meta::TrackList match( const Meta::TrackList &tracks ) = 0;
  39
  40         bool isLast() const;
  41         void setNext( MemoryMatcher *next );
  42         MemoryMatcher* next() const;
  43
  44     private:
  45         MemoryMatcher *m_next;
  46 };
  47
  48
  49 class AMAROK_EXPORT TrackMatcher : public MemoryMatcher
  50 {
  51     public:
  52         TrackMatcher( Meta::TrackPtr track );
  53         virtual Meta::TrackList match( MemoryCollection *memColl );
  54         virtual Meta::TrackList match( const Meta::TrackList &tracks );
  55
  56     private:
  57         Meta::TrackPtr m_track;
  58 };
  59
  60
  61 class AMAROK_EXPORT ArtistMatcher : public MemoryMatcher
  62 {
  63     public:
  64         ArtistMatcher( Meta::ArtistPtr artist );
  65         virtual Meta::TrackList match( MemoryCollection *memColl );
  66         virtual Meta::TrackList match( const Meta::TrackList &tracks );
  67
  68         virtual Meta::AlbumList matchAlbums( MemoryCollection *memColl );
  69
  70     private:
  71         Meta::ArtistPtr m_artist;
  72 };
  73
  74 class AMAROK_EXPORT AlbumMatcher : public MemoryMatcher
  75 {
  76     public:
  77         AlbumMatcher( Meta::AlbumPtr album );
  78         virtual Meta::TrackList match( MemoryCollection *memColl );
  79         virtual Meta::TrackList match( const Meta::TrackList &tracks );
  80
  81     private:
  82         Meta::AlbumPtr m_album;
  83 };
  84
  85 class AMAROK_EXPORT GenreMatcher : public MemoryMatcher
  86 {
  87     public:
  88         GenreMatcher( Meta::GenrePtr genre );
  89         virtual Meta::TrackList match( MemoryCollection *memColl );
  90         virtual Meta::TrackList match( const Meta::TrackList &tracks );
  91
  92     private:
  93         Meta::GenrePtr m_genre;
  94 };
  95
  96 class AMAROK_EXPORT ComposerMatcher : public MemoryMatcher
  97 {
  98     public:
  99         ComposerMatcher( Meta::ComposerPtr composer );
 100         virtual Meta::TrackList match( MemoryCollection *memColl );
 101         virtual Meta::TrackList match( const Meta::TrackList &tracks );
 102
 103     private:
 104         Meta::ComposerPtr m_composer;
 105 };
 106
 107 class AMAROK_EXPORT YearMatcher : public MemoryMatcher
 108 {
 109     public:
 110         YearMatcher( Meta::YearPtr year );
 111         virtual Meta::TrackList match( MemoryCollection *memColl );
 112         virtual Meta::TrackList match( const Meta::TrackList &tracks );
 113
 114     private:
 115         Meta::YearPtr m_year;
 116 };
 117
 118
 119 #endif