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Viewing changes to pitivi/ui/timelinecontrols.py

  • Committer: Package Import Robot
  • Author(s): Sebastian Dröge
  • Date: 2014-04-05 15:28:16 UTC
  • mfrom: (6.1.13 sid)
  • Revision ID: package-import@ubuntu.com-20140405152816-6lijoax4cngiz5j5
Tags: 0.93-3
http://bugs.debian.org/732813
http://bugs.debian.org/743692
* debian/control:
  + Depend on python-gi (>= 3.10), older versions do not work
    with pitivi (Closes: #732813).
  + Add missing dependency on gir1.2-clutter-gst-2.0 (Closes: #743692).
  + Add suggests on gir1.2-notify-0.7 and gir1.2-gnomedesktop-3.0.

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pitivi/ui/timelinecontrols.py
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import gtk
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from pitivi.receiver import receiver, handler
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import pitivi.stream as stream
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from gettext import gettext as _
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from common import LAYER_HEIGHT_EXPANDED, LAYER_SPACING
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TRACK_CONTROL_WIDTH = 75
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class TrackControls(gtk.Label):
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    """Contains a timeline track name.
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    @ivar track: The track for which to display the name.
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    @type track: An L{pitivi.timeline.track.Track} object
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    """
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    __gtype_name__ = 'TrackControls'
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    def __init__(self, track):
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        gtk.Label.__init__(self)
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        # Center the label horizontally.
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        self.set_alignment(0.5, 0)
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        # The value below is arbitrarily chosen so the text appears
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        # centered vertically when the represented track has a single layer.
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        self.set_padding(0, LAYER_SPACING * 2)
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        self.set_markup(self._getTrackName(track))
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        self.track = track
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        self._setSize(layers_count=1)
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    def _setTrack(self):
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        if self.track:
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            self._maxPriorityChanged(None, self.track.max_priority)
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    track = receiver(_setTrack)
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    @handler(track, "max-priority-changed")
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    def _maxPriorityChanged(self, track, max_priority):
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        self._setSize(max_priority + 1)
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    def _setSize(self, layers_count):
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        assert layers_count >= 1
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        height = layers_count * (LAYER_HEIGHT_EXPANDED + LAYER_SPACING)
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        self.set_size_request(TRACK_CONTROL_WIDTH, height)
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    @staticmethod
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    def _getTrackName(track):
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        stream_type = type(track.stream)
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        if stream_type == stream.AudioStream:
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            track_name = _("Audio:")
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        elif stream_type == stream.VideoStream:
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            track_name = _("Video:")
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        elif stream_type == stream.TextStream:
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            track_name = _("Text:")
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        return "<b>%s</b>" % track_name
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class TimelineControls(gtk.VBox):
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    """Contains the timeline track names."""
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    def __init__(self):
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        gtk.VBox.__init__(self)
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        self._tracks = []
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        self.set_spacing(LAYER_SPACING)
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        self.set_size_request(TRACK_CONTROL_WIDTH, -1)
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## Timeline callbacks
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    def _set_timeline(self):
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        while self._tracks:
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            self._trackRemoved(None, 0)
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        if self.timeline:
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            for track in self.timeline.tracks:
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                self._trackAdded(None, track)
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    timeline = receiver(_set_timeline)
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    @handler(timeline, "track-added")
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    def _trackAdded(self, timeline, track):
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        track = TrackControls(track)
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        self._tracks.append(track)
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        self.pack_start(track, False, False)
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        track.show()
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    @handler(timeline, "track-removed")
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    def _trackRemoved(self, unused_timeline, position):
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        track = self._tracks[position]
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        del self._tracks[position]
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        self.remove(track)