File indexing completed on 2021-12-21 13:27:59

0001 /**
0002  * Copyright (C) 2002-2004 Scott Wheeler <wheeler@kde.org>
0003  *
0004  * This program is free software; you can redistribute it and/or modify it under
0005  * the terms of the GNU General Public License as published by the Free Software
0006  * Foundation; either version 2 of the License, or (at your option) any later
0007  * version.
0008  *
0009  * This program is distributed in the hope that it will be useful, but WITHOUT ANY
0010  * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
0011  * PARTICULAR PURPOSE. See the GNU General Public License for more details.
0012  *
0013  * You should have received a copy of the GNU General Public License along with
0014  * this program.  If not, see <http://www.gnu.org/licenses/>.
0015  */
0016 
0017 #ifndef PLAYLISTSPLITTER_H
0018 #define PLAYLISTSPLITTER_H
0019 
0020 #include <QSplitter>
0021 
0022 class QStackedWidget;
0023 class QTreeWidgetItem;
0024 
0025 class Playlist;
0026 class SearchWidget;
0027 class PlaylistInterface;
0028 class TagEditor;
0029 class PlaylistBox;
0030 class NowPlaying;
0031 class PlayerManager;
0032 class FileHandle;
0033 class LyricsWidget;
0034 
0035 /**
0036  * This is the main layout class of JuK.  It should contain a PlaylistBox and
0037  * a QStackedWidget of the Playlists.
0038  *
0039  * This class serves as a "mediator" (see "Design Patterns") between the JuK
0040  * class and the playlist classes.  Thus all access to the playlist classes from
0041  * non-Playlist related classes should be through the public API of this class.
0042  */
0043 
0044 class PlaylistSplitter : public QSplitter
0045 {
0046     Q_OBJECT
0047 
0048 public:
0049     PlaylistSplitter(PlayerManager *player, QWidget *parent);
0050     virtual ~PlaylistSplitter();
0051 
0052     PlaylistInterface *playlist() const;
0053 
0054 signals:
0055     /**
0056      * Emitted when GUI is created and the cache is loaded.  Is kind of a hack
0057      * until we move the time-intensive parts to a separate thread but then
0058      * again at least this works.
0059      */
0060     void guiReady();
0061     void currentPlaylistChanged(const PlaylistInterface &currentPlaylist);
0062 
0063 public slots:
0064     virtual void setFocus();
0065     virtual void slotFocusCurrentPlaylist();
0066     void slotEnable();
0067 
0068 private:
0069 
0070     /**
0071      * This returns a pointer to the first item in the playlist on the top
0072      * of the QStackedWidget of playlists.
0073      */
0074     Playlist *visiblePlaylist() const;
0075 
0076     void setupActions();
0077     void setupLayout();
0078     void readConfig();
0079     void saveConfig();
0080 
0081 private slots:
0082 
0083     /**
0084      * Updates the visible search results based on the result of the search
0085      * associated with the currently visible playlist.
0086      */
0087     void slotShowSearchResults();
0088     void slotPlaylistSelectionChanged();
0089     void slotPlaylistChanged(int i);
0090     void slotCurrentPlaylistChanged(QTreeWidgetItem *item);
0091 
0092 private:
0093 
0094 // These classes appear in the main user interface in the following arrangement/layout:
0095 // (note the left/right splitter is the reason this class is named as it is and why it
0096 // is a subclass of QSplitter).
0097 //
0098 //  +-----------+--------------------------------------------------------------+---------+
0099 //  | Playlist  | NowPlaying*                                                  | Lyrics  |
0100 //  | Box*      +--------------------------------------------------------------+ Widget* |
0101 //  |           | SearchWidget*                                                |         |
0102 //  |           +--------------------------------------------------------------+         |
0103 //  |           ^ Playlist* (multiple; stacked under QStackedWidget*)          |         |
0104 //  |           | --------------  ---------  --------  ---------  -----------  |         |
0105 //  |           *                  PlaylistItem*s                              |         |
0106 //  |  splitter t --------------  ---------  --------  ---------  -----------  |         |
0107 //  |  handle   h                                                              |         |
0108 //  |   ------> i --------------  ---------  --------  ---------  -----------  |         |
0109 //  |           s                                                              |         |
0110 //  |           | --------------  ---------  --------  ---------  -----------  |         |
0111 //  |           ,                            ...                               |         |
0112 //  |           |                            ...                               |         |
0113 //  |           +-------------[ splitter handle m_editorSplitter ]-------------+         |
0114 //  |           | TagEditor*                                                   |         |
0115 //  |           |                                                              |         |
0116 //  |           |                                                              |         |
0117 //  +-----------+--------------------------------------------------------------+---------+
0118 
0119     PlaylistBox    *m_playlistBox    = nullptr;
0120     QSplitter      *m_editorSplitter = nullptr;
0121     NowPlaying     *m_nowPlaying     = nullptr;
0122     SearchWidget   *m_searchWidget   = nullptr;
0123     QStackedWidget *m_playlistStack  = nullptr;
0124     TagEditor      *m_editor         = nullptr;
0125     LyricsWidget   *m_lyricsWidget   = nullptr;
0126     Playlist       *m_newVisible     = nullptr;
0127     PlayerManager  *m_player         = nullptr;
0128 };
0129 
0130 #endif
0131 
0132 // vim: set et sw=4 tw=0 sta: