def __init__(self, instance):
gtk.VBox.__init__(self)
Loggable.__init__(self)
self.log("Init PreviewWidget")
self.connect('destroy', self._destroy_cb)
self.settings = instance.settings
self.preview_cache = {}
self.preview_cache_errors = {}
self.discoverer = Discoverer()
self.discoverer.connect('discovery-done', self._update_preview_cb)
self.discoverer.connect('discovery-error', self._error_detected_cb)
#playbin for play pics
self.player = get_playbin()
bus = self.player.get_bus()
bus.add_signal_watch()
bus.connect('message', self._bus_message_cb)
bus.enable_sync_message_emission()
bus.connect('sync-message::element', self._sync_message_cb)
bus.connect('message::tag', self._tag_found_cb)
self.__videosink = self.player.get_property("video-sink")
self.__fakesink = gst.element_factory_make("fakesink", "fakesink")
#some global variables for preview handling
self.is_playing = False
self.time_format = gst.Format(gst.FORMAT_TIME)
self.original_dims = (PREVIEW_WIDTH, PREVIEW_HEIGHT)
self.countinuous_seek = False
self.current_selected_uri = ""
self.current_preview_type = ""
self.description = ""
self.tags = {}
# Gui elements:
# Drawing area for video output
self.preview_video = ViewerWidget()
self.preview_video.modify_bg(gtk.STATE_NORMAL,
self.preview_video.style.black)
self.pack_start(self.preview_video, expand=False)
# An image for images and audio
self.preview_image = gtk.Image()
self.preview_image.set_size_request(self.settings.FCpreviewWidth,
self.settings.FCpreviewHeight)
self.preview_image.show()
self.pack_start(self.preview_image, expand=False)
# Play button
self.bbox = gtk.HBox()
self.play_button = gtk.ToolButton(gtk.STOCK_MEDIA_PLAY)
self.play_button.connect("clicked", self._on_start_stop_clicked_cb)
self.bbox.pack_start(self.play_button, expand=False)
#Scale for position handling
self.pos_adj = gtk.Adjustment()
self.seeker = gtk.HScale(self.pos_adj)
self.seeker.set_update_policy(gtk.UPDATE_DISCONTINUOUS)
self.seeker.connect('button-press-event', self._on_seeker_press_cb)
self.seeker.connect('button-release-event', self._on_seeker_press_cb)
self.seeker.connect('motion-notify-event', self._on_motion_notify_cb)
self.seeker.set_draw_value(False)
self.seeker.show()
self.bbox.pack_start(self.seeker)
# Zoom buttons
self.b_zoom_in = gtk.ToolButton(gtk.STOCK_ZOOM_IN)
self.b_zoom_in.connect("clicked", self._on_zoom_clicked_cb, 1)
self.b_zoom_out = gtk.ToolButton(gtk.STOCK_ZOOM_OUT)
self.b_zoom_out.connect("clicked", self._on_zoom_clicked_cb, -1)
self.bbox.pack_start(self.b_zoom_in, expand=False)
self.bbox.pack_start(self.b_zoom_out, expand=False)
self.bbox.show_all()
self.pack_start(self.bbox, expand=False)
# Label for metadata tags
self.l_tags = gtk.Label()
self.l_tags.set_justify(gtk.JUSTIFY_LEFT)
self.l_tags.set_ellipsize(pango.ELLIPSIZE_END)
self.l_tags.show()
self.pack_start(self.l_tags, expand=False)
# Error handling
vbox = gtk.VBox()
vbox.set_spacing(SPACING)
self.l_error = gtk.Label(_("PiTiVi can not preview this file."))
self.b_details = gtk.Button(_("More info"))
self.b_details.connect('clicked', self._on_b_details_clicked_cb)
vbox.pack_start(self.l_error)
vbox.pack_start(self.b_details, expand=False, fill=False)
vbox.show()
self.pack_start(vbox, expand=False, fill=False)
