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
  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.setLayout(QtGui.QVBoxLayout())
  55         self.layout().setSpacing(0)
  56         self.layout().setMargin(0)
  57         self.layout().addWidget(self.playlist)
  58
  59         self.plugin.mpclient.playlist(self.playlist.fill)
  60
  61 class PlaylistTree(QtGui.QTreeWidget):
  62     plugin = None
  63
  64     ### PRIVATE ###
  65     # popup menu
  66     _menu      = None
  67     # add same... menu
  68     _same_menu = None
  69     # currently playing song item (highlighted
  70     _cur_song = None
  71
  72     def __init__(self, plugin):
  73         QtGui.QTreeWidget.__init__(self)
  74         self.plugin = plugin
  75
  76         self.setSelectionMode(QtGui.QTreeWidget.ExtendedSelection)
  77         self.setAlternatingRowColors(True)
  78         self.setRootIsDecorated(False)
  79
  80         # drag&drop
  81         self.viewport().setAcceptDrops(True)
  82         self.setDropIndicatorShown(True)
  83         self.setDragDropMode(QtGui.QAbstractItemView.DragDrop)
  84
  85         columns = self.plugin.settings.value(self.plugin.name + '/columns')
  86         self.setColumnCount(len(columns))
  87         self.setHeaderLabels(columns)
  88         self.header().restoreState(self.plugin.settings.value(self.plugin.name + '/header_state'))
  89
  90         # menu
  91         self._menu      = QtGui.QMenu()
  92         self._same_menu = self._menu.addMenu('Add same...')
  93         self.setContextMenuPolicy(QtCore.Qt.CustomContextMenu)
  94         self.customContextMenuRequested.connect(self._show_context_menu)
  95
  96         self.itemActivated.connect(self._song_activated)
  97         self.header().geometriesChanged.connect(self._save_state)
  98         self.plugin.mpclient.playlist_changed.connect(lambda :self.plugin.mpclient.playlist(self.fill))
  99         self.plugin.mpclient.connect_changed.connect(self._update_menu)
 100         self.plugin.mpclient.song_changed.connect(self._update_cur_song)
 101
 102     def _save_state(self):
 103         self.plugin.settings.setValue(self.plugin.name + '/header_state', self.header().saveState())
 104
 105     def _song_activated(self, item):
 106         self.plugin.mpclient.play(item.song['id'])
 107
 108     def _update_cur_song(self, song):
 109         if self._cur_song:
 110             self._cur_song.set_current(False)
 111
 112         if not song:
 113             self._cur_song = None
 114             return
 115
 116         self._cur_song = self.topLevelItem(int(song['pos']))
 117         if self._cur_song:
 118             self._cur_song.set_current(True)
 119
 120     def fill(self, songs):
 121         columns = self.plugin.settings.value(self.plugin.name + '/columns')
 122         self._cur_song = None
 123         self.clear()
 124         for song in songs:
 125             item = PlaylistSongItem(PlaylistEntryRef(self.plugin.mpclient, song['id']))
 126             for i in range(len(columns)):
 127                 item.setText(i, song['?' + columns[i]])
 128             self.addTopLevelItem(item)
 129         self._update_cur_song(self.plugin.mpclient.cur_song)
 130
 131     def keyPressEvent(self, event):
 132         if event.matches(QtGui.QKeySequence.Delete):
 133             ids = []
 134             for item in self.selectedItems():
 135                 ids.append(item.song['id'])
 136
 137             self.plugin.mpclient.delete(ids)
 138         else:
 139             QtGui.QTreeWidget.keyPressEvent(self, event)
 140
 141     def mimeData(self, items):
 142         data = SongsMimeData()
 143         data.set_plistsongs([items[0].song['id']])
 144         return data
 145
 146     def dropMimeData(self, parent, index, data, action):
 147         if data.hasFormat(MIMETYPES['plistsongs']):
 148             if parent:
 149                 index = self.indexOfTopLevelItem(parent)
 150             elif index >= self.topLevelItemCount():
 151                 index = self.topLevelItemCount() - 1
 152             self.plugin.mpclient.move(data.plistsongs()[0], index)
 153             return True
 154         elif data.hasFormat(MIMETYPES['songs']):
 155             if parent:
 156                 index = self.indexOfTopLevelItem(parent)
 157             self.plugin.mpclient.add(data.songs(), index)
 158             return True
 159         return False
 160
 161     def supportedDropActions(self):
 162         return QtCore.Qt.CopyAction | QtCore.Qt.MoveAction
 163
 164     def mimeTypes(self):
 165         return [MIMETYPES['songs'], MIMETYPES['plistsongs']]
 166
 167     def _update_menu(self):
 168         """Update popup menu. Invoked on (dis)connect."""
 169         self._same_menu.clear()
 170         for tag in self.plugin.mpclient.tagtypes:
 171             self._same_menu.addAction(tag, lambda tag = tag: self._add_selected_same(tag))
 172
 173     def _add_selected_same(self, tag):
 174         """Adds all tracks in DB with tag 'tag' same as selected tracks."""
 175         for it in self.selectedItems():
 176             self.plugin.mpclient.findadd(tag, it.song['?' + tag])
 177
 178     def _show_context_menu(self, pos):
 179         if not self.indexAt(pos).isValid():
 180             return
 181         self._menu.popup(self.mapToGlobal(pos))
 182
 183 class PlaylistSongItem(QtGui.QTreeWidgetItem):
 184     ### PUBLIC ###
 185     song = None
 186
 187     def __init__(self, song):
 188         QtGui.QTreeWidgetItem.__init__(self)
 189         self.song = song
 190
 191     def set_current(self, val):
 192         font = QtGui.QFont()
 193         if val:
 194             font.setBold(True)
 195             font.setItalic(True)
 196
 197         for i in xrange(self.columnCount()):
 198             self.setFont(i, font)