src/gpodder/qtui.py

   1 #!/usr/bin/python
   2 # gPodder Qt demo app in 100 lines of Python (line width < 80)
   3 # Thomas Perl <thpinfo.com>; 2010-01-15
   4
   5 from PyQt4.QtGui import *
   6 from PyQt4.QtCore import *
   7
   8 import sys
   9 import os
  10 import gpodder
  11
  12 from gpodder import model
  13 from gpodder import dbsqlite
  14 from gpodder import config
  15 from gpodder import util
  16
  17 class gPodderListModel(QAbstractListModel):
  18     def __init__(self, objects):
  19         QAbstractListModel.__init__(self)
  20         self._objects = objects
  21
  22     def get_object(self, index):
  23         return self._objects[index.row()]
  24
  25     def rowCount(self, parent=QModelIndex()):
  26         return len(self._objects)
  27
  28     def data(self, index, role):
  29         if index.isValid() and role == Qt.DisplayRole:
  30             return QVariant(self._format(self.get_object(index)))
  31         return QVariant()
  32
  33     def _format(self, o):
  34         return o.title.decode('utf-8')
  35
  36 class EpisodeModel(gPodderListModel):
  37     def _format(self, episode):
  38         title = episode.title.decode('utf-8')
  39         if episode.was_downloaded(and_exists=True):
  40             return u'[DL] ' + title
  41         return title
  42
  43 class gPodderListView(QListView):
  44     def __init__(self, on_item_selected):
  45         QListView.__init__(self)
  46         self.setProperty('FingerScrollable', True)
  47         self.setHorizontalScrollBarPolicy(Qt.ScrollBarAlwaysOff)
  48         self._on_item_selected = on_item_selected
  49         QObject.connect(self, SIGNAL('activated(QModelIndex)'), self._row_cb)
  50
  51     def _row_cb(self, index):
  52         if index.isValid():
  53             model = self.model()
  54             self._on_item_selected(model.get_object(index))
  55
  56 class qtPodder(QApplication):
  57     def __init__(self, args, config, db):
  58         QApplication.__init__(self, args)
  59
  60         podcasts = model.PodcastChannel.load_from_db(db, config.download_dir)
  61
  62         self.podcast_list = gPodderListView(self.on_podcast_selected)
  63         self.podcast_list.setModel(gPodderListModel(podcasts))
  64
  65         self.podcast_window = QMainWindow()
  66         self.podcast_window.setWindowTitle('gPodder Podcasts in Qt')
  67         self.podcast_window.setCentralWidget(self.podcast_list)
  68         self.podcast_window.show()
  69
  70     def on_podcast_selected(self, podcast):
  71         self.episode_list = gPodderListView(self.on_episode_selected)
  72         self.episode_list.setModel(EpisodeModel(podcast.get_all_episodes()))
  73
  74         self.episode_window = QMainWindow(self.podcast_window)
  75         window_title = u'Episodes in %s' % podcast.title.decode('utf-8')
  76         self.episode_window.setWindowTitle(window_title)
  77         self.episode_window.setCentralWidget(self.episode_list)
  78         self.episode_window.show()
  79
  80     def on_episode_selected(self, episode):
  81         if episode.was_downloaded(and_exists=True):
  82             util.gui_open(episode.local_filename(create=False))
  83         else:
  84             dialog = QMessageBox()
  85             dialog.setWindowTitle(episode.title.decode('utf-8'))
  86             dialog.setText('Episode not yet downloaded')
  87             dialog.exec_()
  88
  89 if __name__ == '__main__':
  90     config = config.Config(gpodder.config_file)
  91     db = dbsqlite.Database(gpodder.database_file)
  92
  93     if os.path.exists('/etc/event.d/hildon-desktop'):
  94         gpodder.ui.fremantle = True
  95     else:
  96         gpodder.ui.desktop = True
  97
  98     gui = qtPodder(sys.argv, config, db)
  99     sys.exit(gui.exec_())
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