nephilim/plugins/Songinfo.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
  22 class Songinfo(Plugin):
  23     # public, const
  24     info = 'Displays song metadata provided by MPD.'
  25
  26     # public, read-only
  27     o    = None
  28     tags = None
  29
  30     # private
  31     DEFAULTS = {'tagtypes' : QtCore.QStringList(['track', 'title', 'artist', 'album',
  32                              'albumartist', 'disc', 'genre', 'date', 'composer', 'performer', 'file'])}
  33
  34     #### private ####
  35
  36     class SettingsWidgetSonginfo(Plugin.SettingsWidget):
  37         # private
  38         taglist = None
  39
  40         def __init__(self, plugin):
  41             Plugin.SettingsWidget.__init__(self, plugin)
  42             self.settings.beginGroup(self.plugin.name)
  43
  44             tags_enabled = self.settings.value('tagtypes').toStringList()
  45             tags         = self.plugin.mpclient.tagtypes()
  46             self.taglist = QtGui.QListWidget(self)
  47             self.taglist.setDragDropMode(QtGui.QAbstractItemView.InternalMove)
  48             for tag in [tag for tag in tags_enabled if tag in tags]:
  49                 it = QtGui.QListWidgetItem(tag)
  50                 it.setCheckState(QtCore.Qt.Checked)
  51                 self.taglist.addItem(it)
  52             for tag in [tag for tag in tags if tag not in tags_enabled]:
  53                 it = QtGui.QListWidgetItem(tag)
  54                 it.setCheckState(QtCore.Qt.Unchecked)
  55                 self.taglist.addItem(it)
  56
  57             self.setLayout(QtGui.QVBoxLayout())
  58             self._add_widget(self.taglist, label = 'Tags', tooltip = 'A list of tags that should be displayed.\n'
  59                                       'Use drag and drop to change their order')
  60
  61             self.settings.endGroup()
  62
  63         def save_settings(self):
  64             self.settings.beginGroup(self.plugin.name)
  65
  66             tags = QtCore.QStringList()
  67             for i in range(self.taglist.count()):
  68                 it = self.taglist.item(i)
  69                 if it.checkState() == QtCore.Qt.Checked:
  70                     tags.append(it.text())
  71             self.settings.setValue('tagtypes', QtCore.QVariant(tags))
  72
  73             self.settings.endGroup()
  74             self.plugin.update_tagtypes()
  75             self.plugin.refresh()
  76
  77     #### public ####
  78     def __init__(self, parent, mpclient, name):
  79         Plugin.__init__(self, parent, mpclient, name)
  80
  81         self.__tags = []
  82
  83     def _load(self):
  84         self.o = SonginfoWidget(self)
  85         self.mpclient.song_changed.connect(self.refresh)
  86         self.mpclient.connect_changed.connect(self.update_tagtypes)
  87
  88     def _unload(self):
  89         self.mpclient.song_changed.disconnect(self.refresh)
  90         self.mpclient.connect_changed.disconnect(self.update_tagtypes)
  91         self.o = None
  92
  93     def _get_dock_widget(self):
  94         return self._create_dock(self.o)
  95
  96     def get_settings_widget(self):
  97         return self.SettingsWidgetSonginfo(self)
  98
  99     def update_tagtypes(self):
 100         self.__tags = [tag for tag in self.settings.value(self.name + '/tagtypes').toStringList() if tag in self.mpclient.tagtypes()]
 101         self.o.set_tagtypes(self.__tags)
 102     def refresh(self):
 103         self.logger.info('Refreshing.')
 104         metadata = {}
 105         song = self.mpclient.current_song()
 106
 107         for tag in self.__tags:
 108             metadata[tag] = song[str(tag)] if song else ''  #XXX i don't like the explicit conversion to python string
 109         self.o.set_metadata(metadata)
 110
 111 class SonginfoWidget(QtGui.QWidget):
 112     plugin   = None
 113     __labels = None
 114
 115     def __init__(self, plugin):
 116         QtGui.QWidget.__init__(self)
 117         self.plugin  = plugin
 118         self.__labels = {}
 119         self.setLayout(QtGui.QGridLayout())
 120         self.layout().setColumnStretch(1, 1)
 121
 122     def set_tagtypes(self, tagtypes):
 123         """Setup labels for each tagtype in the list."""
 124         for i in range(self.layout().rowCount()):
 125             it  = self.layout().itemAtPosition(i, 0)
 126             it1 = self.layout().itemAtPosition(i, 1)
 127             if it:
 128                 self.layout().removeItem(it)
 129                 it.widget().setParent(None)
 130             if it1:
 131                 self.layout().removeItem(it1)
 132                 it1.widget().setParent(None)
 133         self.__labels = {}
 134
 135         for tag in tagtypes:
 136             label  = QtGui.QLabel('<b>%s</b>'%tag)   #TODO sort known tags
 137             label1 = QtGui.QLabel()                          # tag value will go here
 138             label1.setTextInteractionFlags(QtCore.Qt.TextSelectableByMouse)
 139             label.setWordWrap(True)
 140             label1.setWordWrap(True)
 141             self.layout().addWidget(label, len(self.__labels), 0, QtCore.Qt.AlignRight)
 142             self.layout().addWidget(label1, len(self.__labels), 1)
 143             self.__labels[tag] = label1
 144
 145     def set_metadata(self, metadata):
 146         """Set displayed metadata, which is provided in a dict of { tag : value }."""
 147         for tag in metadata:
 148             self.__labels[tag].setText(unicode(metadata[tag]))