nephilim/plugins/Playlist.py

   1 #
   2 #    Copyright (C) 2009 Anton Khirnov <wyskas@gmail.com>
   3 #
   4 #    Nephilim is free software: you can redistribute it and/or modify
   5 #    it under the terms of the GNU General Public License as published by
   6 #    the Free Software Foundation, either version 3 of the License, or
   7 #    (at your option) any later version.
   8 #
   9 #    Nephilim is distributed in the hope that it will be useful,
  10 #    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 #    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 #    GNU General Public License for more details.
  13 #
  14 #    You should have received a copy of the GNU General Public License
  15 #    along with Nephilim.  If not, see <http://www.gnu.org/licenses/>.
  16 #
  17
  18 from PyQt4 import QtGui, QtCore
  19
  20 from ..plugin import Plugin
  21 from ..common import MIMETYPES, SongsMimeData
  22 from ..song   import PlaylistEntryRef
  23
  24 class Playlist(Plugin):
  25     # public, const
  26     info = 'Shows the playlist.'
  27
  28     # public, read-only
  29     o        = None
  30
  31     # private
  32     DEFAULTS  = {'columns': ['track', 'title', 'artist', 'date', 'album', 'length'], 'header_state' : QtCore.QByteArray()}
  33
  34     def _load(self):
  35         self.o = PlaylistWidget(self)
  36
  37     def _unload(self):
  38         self.o = None
  39
  40     def _get_dock_widget(self):
  41         return self._create_dock(self.o)
  42
  43 class PlaylistWidget(QtGui.QWidget):
  44     plugin   = None
  45     playlist = None
  46     toolbar  = None
  47
  48     def __init__(self, plugin):
  49         QtGui.QWidget.__init__(self)
  50         self.plugin = plugin
  51
  52         self.playlist = PlaylistTree(self.plugin)
  53
  54         self.toolbar  = QtGui.QToolBar(self.plugin.name + ' toolbar', self)
  55         self.toolbar.addAction(QtGui.QIcon(':icons/delete.png'), 'Clear current playlist.', self.plugin.mpclient.clear)
  56         add_url = PlaylistAddURL(self.plugin.mpclient, self)
  57         add_url.setToolTip('Add an URL to current playlist.')
  58         self.toolbar.addWidget(add_url)
  59
  60         self.setLayout(QtGui.QVBoxLayout())
  61         self.layout().setSpacing(0)
  62         self.layout().setMargin(0)
  63         self.layout().addWidget(self.toolbar)
  64         self.layout().addWidget(self.playlist)
  65
  66         self.plugin.mpclient.playlist(self.playlist.fill)
  67
  68 class PlaylistAddURL(QtGui.QLineEdit):
  69
  70     ### PRIVATE ####
  71     _mpclient = None
  72
  73     def __init__(self, mpclient, parent = None):
  74         QtGui.QLineEdit.__init__(self, parent)
  75         self._mpclient = mpclient
  76         self.returnPressed.connect(self._return_pressed)
  77
  78     def _return_pressed(self):
  79         self._mpclient.add([self.text()])
  80         self.clear()
  81
  82 class PlaylistTree(QtGui.QTreeWidget):
  83     plugin = None
  84
  85     ### PRIVATE ###
  86     # popup menu
  87     _menu      = None
  88     # add same... menu
  89     _same_menu = None
  90     # currently playing song item (highlighted
  91     _cur_song = None
  92
  93     def __init__(self, plugin):
  94         QtGui.QTreeWidget.__init__(self)
  95         self.plugin = plugin
  96
  97         self.setSelectionMode(QtGui.QTreeWidget.ExtendedSelection)
  98         self.setAlternatingRowColors(True)
  99         self.setRootIsDecorated(False)
 100
 101         # drag&drop
 102         self.viewport().setAcceptDrops(True)
 103         self.setDropIndicatorShown(True)
 104         self.setDragDropMode(QtGui.QAbstractItemView.DragDrop)
 105
 106         columns = self.plugin.settings.value(self.plugin.name + '/columns')
 107         self.setColumnCount(len(columns))
 108         self.setHeaderLabels(columns)
 109         self.header().restoreState(self.plugin.settings.value(self.plugin.name + '/header_state'))
 110
 111         # menu
 112         self._menu      = QtGui.QMenu()
 113         self._same_menu = self._menu.addMenu('Add same...')
 114         self.setContextMenuPolicy(QtCore.Qt.CustomContextMenu)
 115         self.customContextMenuRequested.connect(self._show_context_menu)
 116
 117         self.itemActivated.connect(self._song_activated)
 118         self.header().geometriesChanged.connect(self._save_state)
 119         self.plugin.mpclient.playlist_changed.connect(lambda :self.plugin.mpclient.playlist(self.fill))
 120         self.plugin.mpclient.connect_changed.connect(self._update_menu)
 121         self.plugin.mpclient.song_changed.connect(self._update_cur_song)
 122         self.plugin.mpclient.songpos_changed.connect(self._update_cur_song)
 123
 124     def _save_state(self):
 125         self.plugin.settings.setValue(self.plugin.name + '/header_state', self.header().saveState())
 126
 127     def _song_activated(self, item):
 128         self.plugin.mpclient.play(item.song['id'])
 129
 130     def _update_cur_song(self, song):
 131         if self._cur_song:
 132             self._cur_song.set_current(False)
 133
 134         if not song:
 135             self._cur_song = None
 136             return
 137
 138         self._cur_song = self.topLevelItem(int(song['pos']))
 139         if self._cur_song:
 140             self._cur_song.set_current(True)
 141
 142     def fill(self, songs):
 143         columns = self.plugin.settings.value(self.plugin.name + '/columns')
 144         self._cur_song = None
 145         self.clear()
 146         for song in songs:
 147             item = PlaylistSongItem(PlaylistEntryRef(self.plugin.mpclient, song['id']))
 148             for i in range(len(columns)):
 149                 item.setText(i, song['?' + columns[i]])
 150             self.addTopLevelItem(item)
 151         self._update_cur_song(self.plugin.mpclient.cur_song)
 152
 153     def keyPressEvent(self, event):
 154         if event.matches(QtGui.QKeySequence.Delete):
 155             ids = []
 156             for item in self.selectedItems():
 157                 ids.append(item.song['id'])
 158
 159             self.plugin.mpclient.delete(ids)
 160         else:
 161             QtGui.QTreeWidget.keyPressEvent(self, event)
 162
 163     def mimeData(self, items):
 164         data = SongsMimeData()
 165         data.set_plistsongs([items[0].song['id']])
 166         return data
 167
 168     def dropMimeData(self, parent, index, data, action):
 169         if data.hasFormat(MIMETYPES['plistsongs']):
 170             if parent:
 171                 index = self.indexOfTopLevelItem(parent)
 172             elif index >= self.topLevelItemCount():
 173                 index = self.topLevelItemCount() - 1
 174             self.plugin.mpclient.move(data.plistsongs()[0], index)
 175             return True
 176         elif data.hasFormat(MIMETYPES['songs']):
 177             if parent:
 178                 index = self.indexOfTopLevelItem(parent)
 179             self.plugin.mpclient.add(data.songs(), index)
 180             return True
 181         return False
 182
 183     def supportedDropActions(self):
 184         return QtCore.Qt.CopyAction | QtCore.Qt.MoveAction
 185
 186     def mimeTypes(self):
 187         return [MIMETYPES['songs'], MIMETYPES['plistsongs']]
 188
 189     def _update_menu(self):
 190         """Update popup menu. Invoked on (dis)connect."""
 191         self._same_menu.clear()
 192         for tag in self.plugin.mpclient.tagtypes:
 193             self._same_menu.addAction(tag, lambda tag = tag: self._add_selected_same(tag))
 194
 195     def _add_selected_same(self, tag):
 196         """Adds all tracks in DB with tag 'tag' same as selected tracks."""
 197         for it in self.selectedItems():
 198             self.plugin.mpclient.findadd(tag, it.song['?' + tag])
 199
 200     def _show_context_menu(self, pos):
 201         if not self.indexAt(pos).isValid():
 202             return
 203         self._menu.popup(self.mapToGlobal(pos))
 204
 205 class PlaylistSongItem(QtGui.QTreeWidgetItem):
 206     ### PUBLIC ###
 207     song = None
 208
 209     def __init__(self, song):
 210         QtGui.QTreeWidgetItem.__init__(self)
 211         self.song = song
 212
 213     def set_current(self, val):
 214         font = QtGui.QFont()
 215         if val:
 216             font.setBold(True)
 217             font.setItalic(True)
 218
 219         for i in xrange(self.columnCount()):
 220             self.setFont(i, font)