diff --git a/playlistitem.h b/playlistitem.h index 0e5579a3..8d4c2fc1 100644 --- a/playlistitem.h +++ b/playlistitem.h @@ -1,232 +1,228 @@ /** * Copyright (C) 2002-2004 Scott Wheeler * * This program is free software; you can redistribute it and/or modify it under * the terms of the GNU General Public License as published by the Free Software * Foundation; either version 2 of the License, or (at your option) any later * version. * * This program is distributed in the hope that it will be useful, but WITHOUT ANY * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A * PARTICULAR PURPOSE. See the GNU General Public License for more details. * * You should have received a copy of the GNU General Public License along with * this program. If not, see . */ #ifndef JUK_PLAYLISTITEM_H #define JUK_PLAYLISTITEM_H #include #include #include #include #include #include #include "tagguesser.h" #include "filehandle.h" class Playlist; class PlaylistItem; class CollectionListItem; class CollectionList; typedef QList PlaylistItemList; /** * Items for the Playlist and the baseclass for CollectionListItem. * The constructors and destructor are protected and new items should be * created via Playlist::createItem(). Items should be removed by * Playlist::clear(), Playlist::deleteFromDisk(), Playlist::clearItem() or * Playlist::clearItem(). */ class PlaylistItem : public QTreeWidgetItem { friend class Playlist; friend class SearchPlaylist; friend class UpcomingPlaylist; friend class CollectionList; friend class CollectionListItem; friend class Pointer; public: enum ColumnType { TrackColumn = 0, ArtistColumn = 1, AlbumColumn = 2, CoverColumn = 3, TrackNumberColumn = 4, GenreColumn = 5, YearColumn = 6, LengthColumn = 7, BitrateColumn = 8, CommentColumn = 9, FileNameColumn = 10, FullPathColumn = 11 }; /** * A helper class to implement guarded pointer semantics. */ class Pointer { public: Pointer() : m_item(0) {} Pointer(PlaylistItem *item); Pointer(const Pointer &p); ~Pointer(); Pointer &operator=(PlaylistItem *item); bool operator==(const Pointer &p) const { return m_item == p.m_item; } bool operator!=(const Pointer &p) const { return m_item != p.m_item; } PlaylistItem *operator->() const { return m_item; } PlaylistItem &operator*() const { return *m_item; } operator PlaylistItem*() const { return m_item; } static void clear(PlaylistItem *item); private: PlaylistItem *m_item; static QMap > m_map; }; friend class Pointer; static int lastColumn() { return FullPathColumn; } void setFile(const FileHandle &file); void setFile(const QString &file); FileHandle file() const; virtual const QPixmap *pixmap(int column) const; virtual QString text(int column) const; virtual void setText(int column, const QString &text); void setPlaying(bool playing = true, bool master = true); virtual void setSelected(bool selected); void guessTagInfo(TagGuesser::Type type); Playlist *playlist() const; virtual CollectionListItem *collectionItem() { return m_collectionItem; } /** * This is an identifier for the playlist item which will remain unique * throughout the process lifetime. It stays constant once the PlaylistItem * is created. */ quint32 trackId() const { return m_trackId; } /** * The widths of items are cached when they're updated for us in computations * in the "weighted" listview column width mode. */ QVector cachedWidths() const; /** * This just refreshes from the in memory data. This may seem pointless at * first, but this data is shared between all of the list view items that are * based on the same file, so if another one of those items changes its data * it is important to refresh the others. */ virtual void refresh(); /** * This rereads the tag from disk. This affects all PlaylistItems based on * the same file. */ virtual void refreshFromDisk(); /** * Asks the item's playlist to remove the item (which uses deleteLater()). */ virtual void clear(); /** * Returns properly casted item below this one. */ PlaylistItem *itemBelow() { return static_cast(treeWidget()->itemBelow(this)); } /** * Returns properly casted item above this one. */ PlaylistItem *itemAbove() { return static_cast(treeWidget()->itemAbove(this)); } /** * Returns a reference to the list of the currnetly playing items, with the * first being the "master" item (i.e. the item from which the next track is * chosen). */ static const PlaylistItemList &playingItems() { return m_playingItems; } protected: /** * Items should always be created using Playlist::createItem() or through a * subclass or friend class. */ PlaylistItem(CollectionListItem *item, Playlist *parent); PlaylistItem(CollectionListItem *item, Playlist *parent, QTreeWidgetItem *after); /** * This is the constructor that shold be used by subclasses. */ PlaylistItem(CollectionList *parent); /** * See the class documentation for an explanation of construction and deletion * of PlaylistItems. */ virtual ~PlaylistItem(); //virtual void paintCell(QPainter *p, const QColorGroup &cg, int column, int width, int align); //virtual void paintFocus(QPainter *, const QColorGroup &, const QRect &) {} virtual int compare(QTreeWidgetItem *item, int column, bool ascending) const; int compare(const PlaylistItem *firstItem, const PlaylistItem *secondItem, int column, bool ascending) const; bool isValid() const; void setTrackId(quint32 id); /** * Shared data between all PlaylistItems from the same track (incl. the CollectionItem * representing said track. */ struct Data : public QSharedData { Data() {} Data(const QFileInfo &info, const QString &path) : fileHandle(info, path) {} Data(const QString &path) : fileHandle(path) {} FileHandle fileHandle; QVector metadata; ///< Artist, album, or genre tags. Other columns unfilled QVector cachedWidths; }; using DataPtr = QExplicitlySharedDataPointer; DataPtr sharedData() const { return d; } private: DataPtr d; void setup(CollectionListItem *item); CollectionListItem *m_collectionItem; quint32 m_trackId; bool m_watched; static PlaylistItemList m_playingItems; }; inline QDebug operator<<(QDebug s, const PlaylistItem &item) { - if(&item == 0) - s << "(nil)"; - else - s << item.text(PlaylistItem::TrackColumn); - + s << item.text(PlaylistItem::TrackColumn); return s; } #endif // vim: set et sw=4 tw=0 sta: