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     #### public ####
  31     def __init__(self, parent, mpclient, name):
  32         Plugin.__init__(self, parent, mpclient, name)
  33
  34         self.__tags = []
  35
  36     def _load(self):
  37         self.o = SonginfoWidget(self)
  38         self.mpclient.song_changed.connect(self.refresh)
  39         self.mpclient.connect_changed.connect(self.__update_tagtypes)
  40
  41     def _unload(self):
  42         self.mpclient.song_changed.disconnect(self.refresh)
  43         self.mpclient.connect_changed.disconnect(self.__update_tagtypes)
  44         self.o = None
  45
  46     def __update_tagtypes(self):
  47         self.__tags = self.mpclient.tagtypes()
  48         self.o.set_tagtypes(self.__tags)
  49
  50     def _get_dock_widget(self):
  51         return self._create_dock(self.o)
  52
  53     def refresh(self):
  54         self.logger.info('Refreshing.')
  55         metadata = {}
  56         song = self.mpclient.current_song()
  57
  58         for tag in self.__tags:
  59             metadata[tag] = song.tag(tag, '') if song else ''
  60         self.o.set_metadata(metadata)
  61
  62 class SonginfoWidget(QtGui.QWidget):
  63     plugin   = None
  64     __labels = None
  65
  66     def __init__(self, plugin):
  67         QtGui.QWidget.__init__(self)
  68         self.plugin  = plugin
  69         self.__labels = {}
  70         self.setLayout(QtGui.QGridLayout())
  71
  72     def set_tagtypes(self, tagtypes):
  73         """Setup labels for each tagtype in the list."""
  74         for i in range(self.layout().rowCount()):
  75             it  = self.layout().itemAtPosition(i, 0)
  76             it1 = self.layout().itemAtPosition(i, 1)
  77             if it:
  78                 self.layout().removeItem(it)
  79                 it.widget().setParent(None)
  80             if it1:
  81                 self.layout().removeItem(it1)
  82                 it1.widget().setParent(None)
  83         self.__labels = {}
  84
  85         for tag in tagtypes:
  86             label  = QtGui.QLabel('<b>%s</b>'%tag.title())   #TODO sort known tags
  87             label1 = QtGui.QLabel()                          # tag value will go here
  88             label1.setTextInteractionFlags(QtCore.Qt.TextSelectableByMouse)
  89             label.setWordWrap(True)
  90             label1.setWordWrap(True)
  91             self.layout().addWidget(label, len(self.__labels), 0, QtCore.Qt.AlignRight)
  92             self.layout().addWidget(label1, len(self.__labels), 1)
  93             self.__labels[tag] = label1
  94
  95     def set_metadata(self, metadata):
  96         """Set displayed metadata, which is provided in a dict of { tag : value }."""
  97         for tag in metadata:
  98             self.__labels[tag].setText(unicode(metadata[tag]))