class PitiviViewer(Gtk.VBox, Loggable):
"""
A Widget to control and visualize a Pipeline
@ivar pipeline: The current pipeline
@type pipeline: L{Pipeline}
@ivar action: The action controlled by this Pipeline
@type action: L{ViewAction}
"""
__gtype_name__ = 'PitiviViewer'
__gsignals__ = {
"activate-playback-controls": (GObject.SignalFlags.RUN_LAST,
None, (GObject.TYPE_BOOLEAN,)),
}
INHIBIT_REASON = _("Currently playing")
def __init__(self, app, undock_action=None):
Gtk.VBox.__init__(self)
self.set_border_width(SPACING)
self.app = app
self.settings = app.settings
self.system = app.system
Loggable.__init__(self)
self.log("New PitiviViewer")
self.pipeline = None
self._tmp_pipeline = None # Used for displaying a preview when trimming
self.sink = None
self.docked = True
# Only used for restoring the pipeline position after a live clip trim preview:
self._oldTimelinePos = None
self._haveUI = False
self._createUi()
self.target = self.internal
self.undock_action = undock_action
if undock_action:
self.undock_action.connect("activate", self._toggleDocked)
if not self.settings.viewerDocked:
self.undock()
def setPipeline(self, pipeline, position=None):
"""
Set the Viewer to the given Pipeline.
Properly switches the currently set action to that new Pipeline.
@param pipeline: The Pipeline to switch to.
@type pipeline: L{Pipeline}.
@param position: Optional position to seek to initially.
"""
self.debug("self.pipeline:%r", self.pipeline)
self.seeker = Seeker()
self._disconnectFromPipeline()
if self.pipeline:
self.pipeline.set_state(Gst.State.NULL)
self.pipeline = pipeline
if self.pipeline:
self.pipeline.pause()
self.seeker.seek(position)
self.pipeline.connect("state-change", self._pipelineStateChangedCb)
self.pipeline.connect("position", self._positionCb)
self.pipeline.connect("window-handle-message", self._windowHandleMessageCb)
self.pipeline.connect("duration-changed", self._durationChangedCb)
self._setUiActive()
def _disconnectFromPipeline(self):
self.debug("pipeline:%r", self.pipeline)
if self.pipeline is None:
# silently return, there's nothing to disconnect from
return
self.pipeline.disconnect_by_func(self._pipelineStateChangedCb)
self.pipeline.disconnect_by_func(self._windowHandleMessageCb)
self.pipeline.disconnect_by_func(self._positionCb)
self.pipeline.disconnect_by_func(self._durationChangedCb)
self.pipeline = None
def _setUiActive(self, active=True):
self.debug("active %r", active)
self.set_sensitive(active)
if self._haveUI:
for item in [self.goToStart_button, self.back_button,
self.playpause_button, self.forward_button,
self.goToEnd_button, self.timecode_entry]:
item.set_sensitive(active)
if active:
self.emit("activate-playback-controls", True)
def _externalWindowDeleteCb(self, window, event):
self.dock()
return True
def _externalWindowConfigureCb(self, window, event):
self.settings.viewerWidth = event.width
self.settings.viewerHeight = event.height
self.settings.viewerX = event.x
self.settings.viewerY = event.y
def _createUi(self):
""" Creates the Viewer GUI """
# Drawing area
# The aspect ratio gets overridden on startup by setDisplayAspectRatio
self.aframe = Gtk.AspectFrame(xalign=0.5, yalign=1.0, ratio=4.0 / 3.0,
obey_child=False)
self.internal = ViewerWidget(self.app.settings)
self.internal.init_transformation_events()
self.internal.show()
self.aframe.add(self.internal)
self.pack_start(self.aframe, True, True, 0)
self.external_window = Gtk.Window()
vbox = Gtk.VBox()
vbox.set_spacing(SPACING)
self.external_window.add(vbox)
self.external = ViewerWidget(self.app.settings)
vbox.pack_start(self.external, True, True, 0)
self.external_window.connect("delete-event", self._externalWindowDeleteCb)
self.external_window.connect("configure-event", self._externalWindowConfigureCb)
self.external_vbox = vbox
self.external_vbox.show_all()
# Buttons/Controls
bbox = Gtk.HBox()
boxalign = Gtk.Alignment(xalign=0.5, yalign=0.5, xscale=0.0, yscale=0.0)
boxalign.add(bbox)
self.pack_start(boxalign, False, True, 0)
self.goToStart_button = Gtk.ToolButton(Gtk.STOCK_MEDIA_PREVIOUS)
self.goToStart_button.connect("clicked", self._goToStartCb)
self.goToStart_button.set_tooltip_text(_("Go to the beginning of the timeline"))
self.goToStart_button.set_sensitive(False)
bbox.pack_start(self.goToStart_button, False, True, 0)
self.back_button = Gtk.ToolButton(Gtk.STOCK_MEDIA_REWIND)
self.back_button.connect("clicked", self._backCb)
self.back_button.set_tooltip_text(_("Go back one second"))
self.back_button.set_sensitive(False)
bbox.pack_start(self.back_button, False, True, 0)
self.playpause_button = PlayPauseButton()
self.playpause_button.connect("play", self._playButtonCb)
bbox.pack_start(self.playpause_button, False, True, 0)
self.playpause_button.set_sensitive(False)
self.forward_button = Gtk.ToolButton(Gtk.STOCK_MEDIA_FORWARD)
self.forward_button.connect("clicked", self._forwardCb)
self.forward_button.set_tooltip_text(_("Go forward one second"))
self.forward_button.set_sensitive(False)
bbox.pack_start(self.forward_button, False, True, 0)
self.goToEnd_button = Gtk.ToolButton(Gtk.STOCK_MEDIA_NEXT)
self.goToEnd_button.connect("clicked", self._goToEndCb)
self.goToEnd_button.set_tooltip_text(_("Go to the end of the timeline"))
self.goToEnd_button.set_sensitive(False)
bbox.pack_start(self.goToEnd_button, False, True, 0)
# current time
self.timecode_entry = TimeWidget()
self.timecode_entry.setWidgetValue(0)
self.timecode_entry.set_tooltip_text(_('Enter a timecode or frame number\nand press "Enter" to go to that position'))
self.timecode_entry.connectActivateEvent(self._entryActivateCb)
self.timecode_entry.connectFocusEvents(self._entryFocusInCb, self._entryFocusOutCb)
bbox.pack_start(self.timecode_entry, False, 10, 0)
self._haveUI = True
# Identify widgets for AT-SPI, making our test suite easier to develop
# These will show up in sniff, accerciser, etc.
self.goToStart_button.get_accessible().set_name("goToStart_button")
self.back_button.get_accessible().set_name("back_button")
self.playpause_button.get_accessible().set_name("playpause_button")
self.forward_button.get_accessible().set_name("forward_button")
self.goToEnd_button.get_accessible().set_name("goToEnd_button")
self.timecode_entry.get_accessible().set_name("timecode_entry")
screen = Gdk.Screen.get_default()
height = screen.get_height()
if height >= 800:
# show the controls and force the aspect frame to have at least the same
# width (+110, which is a magic number to minimize dead padding).
bbox.show_all()
req = bbox.size_request()
width = req.width
height = req.height
width += 110
height = int(width / self.aframe.props.ratio)
self.aframe.set_size_request(width, height)
self.show_all()
self.buttons = bbox
self.buttons_container = boxalign
def setDisplayAspectRatio(self, ratio):
"""
Sets the DAR of the Viewer to the given ratio.
@arg ratio: The aspect ratio to set on the viewer
@type ratio: L{float}
"""
self.debug("Setting ratio of %f [%r]", float(ratio), ratio)
try:
self.aframe.set_property("ratio", float(ratio))
except:
self.warning("could not set ratio !")
def _entryActivateCb(self, entry):
self._seekFromTimecodeWidget()
def _entryFocusInCb(self, entry, event):
self.app.gui.setActionsSensitive(False)
def _entryFocusOutCb(self, entry, event):
self._seekFromTimecodeWidget()
self.app.gui.setActionsSensitive(True)
def _seekFromTimecodeWidget(self):
nanoseconds = self.timecode_entry.getWidgetValue()
self.seeker.seek(nanoseconds)
## active Timeline calllbacks
def _durationChangedCb(self, unused_pipeline, duration):
if duration == 0:
self._setUiActive(False)
else:
self._setUiActive(True)
## Control Gtk.Button callbacks
def setZoom(self, zoom):
"""
Zoom in or out of the transformation box canvas.
This is called by clipproperties.
"""
if self.target.box:
maxSize = self.target.area
width = int(float(maxSize.width) * zoom)
height = int(float(maxSize.height) * zoom)
area = ((maxSize.width - width) / 2,
(maxSize.height - height) / 2,
width, height)
self.sink.set_render_rectangle(*area)
self.target.box.update_size(area)
self.target.zoom = zoom
self.target.sink = self.sink
self.target.renderbox()
def _playButtonCb(self, unused_button, playing):
self.app.current.pipeline.togglePlayback()
def _goToStartCb(self, unused_button):
self.seeker.seek(0)
def _backCb(self, unused_button):
# Seek backwards one second
self.seeker.seekRelative(0 - Gst.SECOND)
def _forwardCb(self, unused_button):
# Seek forward one second
self.seeker.seekRelative(Gst.SECOND)
def _goToEndCb(self, unused_button):
try:
end = self.app.current.pipeline.getDuration()
except:
self.warning("Couldn't get timeline duration")
try:
self.seeker.seek(end)
except:
self.warning("Couldn't seek to the end of the timeline")
## public methods for controlling playback
def undock(self):
if not self.undock_action:
self.error("Cannot undock because undock_action is missing.")
return
if not self.docked:
return
self.docked = False
self.settings.viewerDocked = False
self.undock_action.set_label(_("Dock Viewer"))
self.target = self.external
self.remove(self.buttons_container)
self.external_vbox.pack_end(self.buttons_container, False, False, 0)
self.external_window.set_type_hint(Gdk.WindowTypeHint.UTILITY)
self.external_window.show()
self.fullscreen_button = Gtk.ToggleToolButton(Gtk.STOCK_FULLSCREEN)
self.fullscreen_button.set_tooltip_text(_("Show this window in fullscreen"))
self.buttons.pack_end(self.fullscreen_button, expand=False, fill=False, padding=6)
self.fullscreen_button.show()
self.fullscreen_button.connect("toggled", self._toggleFullscreen)
# if we are playing, switch output immediately
if self.sink:
self._switch_output_window()
self.hide()
self.external_window.move(self.settings.viewerX, self.settings.viewerY)
self.external_window.resize(self.settings.viewerWidth, self.settings.viewerHeight)
def dock(self):
if not self.undock_action:
self.error("Cannot dock because undock_action is missing.")
return
if self.docked:
return
self.docked = True
self.settings.viewerDocked = True
self.undock_action.set_label(_("Undock Viewer"))
self.target = self.internal
self.fullscreen_button.destroy()
self.external_vbox.remove(self.buttons_container)
self.pack_end(self.buttons_container, False, False, 0)
self.show()
# if we are playing, switch output immediately
if self.sink:
self._switch_output_window()
self.external_window.hide()
def _toggleDocked(self, action):
if self.docked:
self.undock()
else:
self.dock()
def _toggleFullscreen(self, widget):
if widget.get_active():
self.external_window.hide()
# GTK doesn't let us fullscreen utility windows
self.external_window.set_type_hint(Gdk.WindowTypeHint.NORMAL)
self.external_window.show()
self.external_window.fullscreen()
widget.set_tooltip_text(_("Exit fullscreen mode"))
else:
self.external_window.unfullscreen()
widget.set_tooltip_text(_("Show this window in fullscreen"))
self.external_window.hide()
self.external_window.set_type_hint(Gdk.WindowTypeHint.UTILITY)
self.external_window.show()
def _positionCb(self, unused_pipeline, position):
"""
If the timeline position changed, update the viewer UI widgets.
This is meant to be called either by the gobject timer when playing,
or by mainwindow's _timelineSeekCb when the timer is disabled.
"""
self.timecode_entry.setWidgetValue(position, False)
def clipTrimPreview(self, tl_obj, position):
"""
While a clip is being trimmed, show a live preview of it.
"""
if isinstance(tl_obj, GES.TitleClip) or tl_obj.props.is_image or not hasattr(tl_obj, "get_uri"):
self.log("%s is an image or has no URI, so not previewing trim" % tl_obj)
return False
clip_uri = tl_obj.props.uri
cur_time = time()
if not self._tmp_pipeline:
self.debug("Creating temporary pipeline for clip %s, position %s",
clip_uri, print_ns(position))
self._oldTimelinePos = self.pipeline.getPosition()
self._tmp_pipeline = Gst.ElementFactory.make("playbin", None)
self._tmp_pipeline.set_property("uri", clip_uri)
self.setPipeline(SimplePipeline(self._tmp_pipeline))
self._lastClipTrimTime = cur_time
if (cur_time - self._lastClipTrimTime) > 0.2:
# Do not seek more than once every 200 ms (for performance)
self._tmp_pipeline.seek_simple(Gst.Format.TIME, Gst.SeekFlags.FLUSH, position)
self._lastClipTrimTime = cur_time
def clipTrimPreviewFinished(self):
"""
After trimming a clip, reset the project pipeline into the viewer.
"""
if self._tmp_pipeline is not None:
self._tmp_pipeline.set_state(Gst.State.NULL)
self._tmp_pipeline = None # Free the memory
self.setPipeline(self.app.current.pipeline, self._oldTimelinePos)
self.debug("Back to old pipeline")
def _pipelineStateChangedCb(self, pipeline, state):
"""
When playback starts/stops, update the viewer widget,
play/pause button and (un)inhibit the screensaver.
This is meant to be called by mainwindow.
"""
self.info("current state changed : %s", state)
if int(state) == int(Gst.State.PLAYING):
self.playpause_button.setPause()
self.system.inhibitScreensaver(self.INHIBIT_REASON)
elif int(state) == int(Gst.State.PAUSED):
self.playpause_button.setPlay()
self.system.uninhibitScreensaver(self.INHIBIT_REASON)
else:
self.sink = None
self.system.uninhibitScreensaver(self.INHIBIT_REASON)
self.internal._currentStateCb(self.pipeline, state)
def _windowHandleMessageCb(self, unused_pipeline, message):
"""
When the pipeline sends us a message to prepare-xwindow-id,
tell the viewer to switch its output window.
"""
self.sink = message.src
self._switch_output_window()
def _switch_output_window(self):
Gdk.threads_enter()
# Prevent cases where target has no "window_xid" (yes, it happens!):
self.target.show()
self.sink.set_window_handle(self.target.window_xid)
self.sink.expose()
Gdk.threads_leave()
class ViewerContainer(Gtk.VBox, Loggable):
"""
A wiget holding a viewer and the controls.
"""
__gtype_name__ = 'ViewerContainer'
__gsignals__ = {
"activate-playback-controls":
(GObject.SignalFlags.RUN_LAST, None, (GObject.TYPE_BOOLEAN, )),
}
INHIBIT_REASON = _("Currently playing")
def __init__(self, app):
Gtk.VBox.__init__(self)
self.set_border_width(SPACING)
self.app = app
self.settings = app.settings
self.system = app.system
Loggable.__init__(self)
self.log("New ViewerContainer")
self.pipeline = None
self.docked = True
self.seeker = Seeker()
# Only used for restoring the pipeline position after a live clip trim preview:
self._oldTimelinePos = None
self._haveUI = False
self._createUi()
if not self.settings.viewerDocked:
self.undock()
@property
def target(self):
if self.docked:
return self.internal
else:
return self.external
def setPipeline(self, pipeline, position=None):
"""
Set the Viewer to the given Pipeline.
Properly switches the currently set action to that new Pipeline.
@param pipeline: The Pipeline to switch to.
@type pipeline: L{Pipeline}.
@param position: Optional position to seek to initially.
"""
self._disconnectFromPipeline()
self.debug("New pipeline: %r", pipeline)
self.pipeline = pipeline
self.pipeline.pause()
self.seeker.seek(position)
self.pipeline.connect("state-change", self._pipelineStateChangedCb)
self.pipeline.connect("position", self._positionCb)
self.pipeline.connect("duration-changed", self._durationChangedCb)
self.sink = pipeline._opengl_sink
self._switch_output_window()
self._setUiActive()
def _disconnectFromPipeline(self):
self.debug("Previous pipeline: %r", self.pipeline)
if self.pipeline is None:
# silently return, there's nothing to disconnect from
return
self.pipeline.disconnect_by_func(self._pipelineStateChangedCb)
self.pipeline.disconnect_by_func(self._positionCb)
self.pipeline.disconnect_by_func(self._durationChangedCb)
self.pipeline = None
def _setUiActive(self, active=True):
self.debug("active %r", active)
self.set_sensitive(active)
if self._haveUI:
for item in [
self.goToStart_button, self.back_button,
self.playpause_button, self.forward_button,
self.goToEnd_button, self.timecode_entry
]:
item.set_sensitive(active)
if active:
self.emit("activate-playback-controls", True)
def _externalWindowDeleteCb(self, unused_window, unused_event):
self.dock()
return True
def _externalWindowConfigureCb(self, unused_window, event):
self.settings.viewerWidth = event.width
self.settings.viewerHeight = event.height
self.settings.viewerX = event.x
self.settings.viewerY = event.y
def _videoRealizedCb(self, unused_drawing_area, viewer):
if viewer == self.target:
self.log("Viewer widget realized: %s", viewer)
self._switch_output_window()
def _createUi(self):
""" Creates the Viewer GUI """
# Drawing area
self.internal = ViewerWidget(self.app.settings,
realizedCb=self._videoRealizedCb)
# Transformation boxed DISABLED
# self.internal.init_transformation_events()
self.pack_start(self.internal, True, True, 0)
self.external_window = Gtk.Window()
vbox = Gtk.VBox()
vbox.set_spacing(SPACING)
self.external_window.add(vbox)
self.external = ViewerWidget(self.app.settings,
realizedCb=self._videoRealizedCb)
vbox.pack_start(self.external, True, True, 0)
self.external_window.connect("delete-event",
self._externalWindowDeleteCb)
self.external_window.connect("configure-event",
self._externalWindowConfigureCb)
self.external_vbox = vbox
# Buttons/Controls
bbox = Gtk.HBox()
bbox.set_property("valign", Gtk.Align.CENTER)
bbox.set_property("halign", Gtk.Align.CENTER)
self.pack_start(bbox, False, True, SPACING)
self.goToStart_button = Gtk.ToolButton()
self.goToStart_button.set_icon_name("media-skip-backward")
self.goToStart_button.connect("clicked", self._goToStartCb)
self.goToStart_button.set_tooltip_text(
_("Go to the beginning of the timeline"))
self.goToStart_button.set_sensitive(False)
bbox.pack_start(self.goToStart_button, False, True, 0)
self.back_button = Gtk.ToolButton()
self.back_button.set_icon_name("media-seek-backward")
self.back_button.connect("clicked", self._backCb)
self.back_button.set_tooltip_text(_("Go back one second"))
self.back_button.set_sensitive(False)
bbox.pack_start(self.back_button, False, True, 0)
self.playpause_button = PlayPauseButton()
self.playpause_button.connect("play", self._playButtonCb)
bbox.pack_start(self.playpause_button, False, True, 0)
self.playpause_button.set_sensitive(False)
self.forward_button = Gtk.ToolButton()
self.forward_button.set_icon_name("media-seek-forward")
self.forward_button.connect("clicked", self._forwardCb)
self.forward_button.set_tooltip_text(_("Go forward one second"))
self.forward_button.set_sensitive(False)
bbox.pack_start(self.forward_button, False, True, 0)
self.goToEnd_button = Gtk.ToolButton()
self.goToEnd_button.set_icon_name("media-skip-forward")
self.goToEnd_button.connect("clicked", self._goToEndCb)
self.goToEnd_button.set_tooltip_text(
_("Go to the end of the timeline"))
self.goToEnd_button.set_sensitive(False)
bbox.pack_start(self.goToEnd_button, False, True, 0)
self.timecode_entry = TimeWidget()
self.timecode_entry.setWidgetValue(0)
self.timecode_entry.set_tooltip_text(
_('Enter a timecode or frame number\nand press "Enter" to go to that position'
))
self.timecode_entry.connectActivateEvent(self._entryActivateCb)
bbox.pack_start(self.timecode_entry, False, 10, 0)
self.undock_button = Gtk.ToolButton()
self.undock_button.set_icon_name("view-restore")
self.undock_button.connect("clicked", self.undock)
self.undock_button.set_tooltip_text(
_("Detach the viewer\nYou can re-attach it by closing the newly created window."
))
bbox.pack_start(self.undock_button, False, True, 0)
self._haveUI = True
# Identify widgets for AT-SPI, making our test suite easier to develop
# These will show up in sniff, accerciser, etc.
self.goToStart_button.get_accessible().set_name("goToStart_button")
self.back_button.get_accessible().set_name("back_button")
self.playpause_button.get_accessible().set_name("playpause_button")
self.forward_button.get_accessible().set_name("forward_button")
self.goToEnd_button.get_accessible().set_name("goToEnd_button")
self.timecode_entry.get_accessible().set_name("timecode_entry")
self.undock_button.get_accessible().set_name("undock_button")
screen = Gdk.Screen.get_default()
height = screen.get_height()
if height >= 800:
# show the controls and force the aspect frame to have at least the same
# width (+110, which is a magic number to minimize dead padding).
bbox.show_all()
req = bbox.size_request()
width = req.width
height = req.height
width += 110
height = int(width / self.internal.props.ratio)
self.internal.set_size_request(width, height)
self.buttons = bbox
self.buttons_container = bbox
self.show_all()
self.external_vbox.show_all()
def setDisplayAspectRatio(self, ratio):
self.debug("Setting aspect ratio to %f [%r]", float(ratio), ratio)
self.internal.setDisplayAspectRatio(ratio)
self.external.setDisplayAspectRatio(ratio)
def _entryActivateCb(self, unused_entry):
self._seekFromTimecodeWidget()
def _seekFromTimecodeWidget(self):
nanoseconds = self.timecode_entry.getWidgetValue()
self.seeker.seek(nanoseconds)
# Active Timeline calllbacks
def _durationChangedCb(self, unused_pipeline, duration):
if duration == 0:
self._setUiActive(False)
else:
self._setUiActive(True)
# Control Gtk.Button callbacks
def setZoom(self, zoom):
"""
Zoom in or out of the transformation box canvas.
This is called by clipproperties.
"""
if self.target.box:
maxSize = self.target.area
width = int(float(maxSize.width) * zoom)
height = int(float(maxSize.height) * zoom)
area = ((maxSize.width - width) / 2, (maxSize.height - height) / 2,
width, height)
self.sink.set_render_rectangle(*area)
self.target.box.update_size(area)
self.target.zoom = zoom
self.target.renderbox()
def _playButtonCb(self, unused_button, unused_playing):
self.app.project_manager.current_project.pipeline.togglePlayback()
self.app.gui.focusTimeline()
def _goToStartCb(self, unused_button):
self.seeker.seek(0)
self.app.gui.focusTimeline()
def _backCb(self, unused_button):
# Seek backwards one second
self.seeker.seekRelative(0 - Gst.SECOND)
self.app.gui.focusTimeline()
def _forwardCb(self, unused_button):
# Seek forward one second
self.seeker.seekRelative(Gst.SECOND)
self.app.gui.focusTimeline()
def _goToEndCb(self, unused_button):
end = self.app.project_manager.current_project.pipeline.getDuration()
self.seeker.seek(end)
self.app.gui.focusTimeline()
# Public methods for controlling playback
def undock(self, *unused_widget):
if not self.docked:
self.warning("The viewer is already undocked")
return
self.docked = False
self.settings.viewerDocked = False
self.remove(self.buttons_container)
self.external_vbox.pack_end(self.buttons_container, False, False, 0)
self.external_window.set_type_hint(Gdk.WindowTypeHint.UTILITY)
self.external_window.show()
self.undock_button.hide()
self.fullscreen_button = Gtk.ToggleToolButton()
self.fullscreen_button.set_icon_name("view-fullscreen")
self.fullscreen_button.set_tooltip_text(
_("Show this window in fullscreen"))
self.buttons.pack_end(self.fullscreen_button,
expand=False,
fill=False,
padding=6)
self.fullscreen_button.show()
self.fullscreen_button.connect("toggled", self._toggleFullscreen)
# if we are playing, switch output immediately
if self.pipeline:
self._switch_output_window()
self.hide()
self.external_window.move(self.settings.viewerX, self.settings.viewerY)
self.external_window.resize(self.settings.viewerWidth,
self.settings.viewerHeight)
def dock(self):
if self.docked:
self.warning("The viewer is already docked")
return
self.docked = True
self.settings.viewerDocked = True
self.undock_button.show()
self.fullscreen_button.destroy()
self.external_vbox.remove(self.buttons_container)
self.pack_end(self.buttons_container, False, False, 0)
self.show()
# if we are playing, switch output immediately
if self.pipeline:
self._switch_output_window()
self.external_window.hide()
def _toggleFullscreen(self, widget):
if widget.get_active():
self.external_window.hide()
# GTK doesn't let us fullscreen utility windows
self.external_window.set_type_hint(Gdk.WindowTypeHint.NORMAL)
self.external_window.show()
self.external_window.fullscreen()
widget.set_tooltip_text(_("Exit fullscreen mode"))
else:
self.external_window.unfullscreen()
widget.set_tooltip_text(_("Show this window in fullscreen"))
self.external_window.hide()
self.external_window.set_type_hint(Gdk.WindowTypeHint.UTILITY)
self.external_window.show()
def _positionCb(self, unused_pipeline, position):
"""
If the timeline position changed, update the viewer UI widgets.
This is meant to be called either by the gobject timer when playing,
or by mainwindow's _timelineSeekCb when the timer is disabled.
"""
self.timecode_entry.setWidgetValue(position, False)
def clipTrimPreview(self, tl_obj, position):
"""
While a clip is being trimmed, show a live preview of it.
"""
if isinstance(tl_obj,
GES.TitleClip) or tl_obj.props.is_image or not hasattr(
tl_obj, "get_uri"):
self.log("%s is an image or has no URI, so not previewing trim" %
tl_obj)
return False
clip_uri = tl_obj.props.uri
cur_time = time()
if self.pipeline == self.app.project_manager.current_project.pipeline:
self.debug("Creating temporary pipeline for clip %s, position %s",
clip_uri, format_ns(position))
self._oldTimelinePos = self.pipeline.getPosition()
self.setPipeline(AssetPipeline(tl_obj))
self._lastClipTrimTime = cur_time
if (cur_time - self._lastClipTrimTime
) > 0.2 and self.pipeline.getState() == Gst.State.PAUSED:
# Do not seek more than once every 200 ms (for performance)
self.pipeline.simple_seek(position)
self._lastClipTrimTime = cur_time
def clipTrimPreviewFinished(self):
"""
After trimming a clip, reset the project pipeline into the viewer.
"""
if self.pipeline is not self.app.project_manager.current_project.pipeline:
self.pipeline.setState(Gst.State.NULL)
# Using pipeline.getPosition() here does not work because for some
# reason it's a bit off, that's why we need self._oldTimelinePos.
self.setPipeline(self.app.project_manager.current_project.pipeline,
self._oldTimelinePos)
self.debug("Back to the project's pipeline")
def _pipelineStateChangedCb(self, unused_pipeline, state):
"""
When playback starts/stops, update the viewer widget,
play/pause button and (un)inhibit the screensaver.
This is meant to be called by mainwindow.
"""
if int(state) == int(Gst.State.PLAYING):
self.playpause_button.setPause()
self.system.inhibitScreensaver(self.INHIBIT_REASON)
elif int(state) == int(Gst.State.PAUSED):
self.playpause_button.setPlay()
self.system.uninhibitScreensaver(self.INHIBIT_REASON)
else:
self.system.uninhibitScreensaver(self.INHIBIT_REASON)
self.internal._currentStateCb(self.pipeline, state)
def _switch_output_window(self):
# Don't do anything if we don't have a pipeline
if self.pipeline is None:
return
if self.target.get_realized():
self.debug("Connecting the pipeline to the viewer's texture")
if platform.system() == 'Windows':
xid = self.target.drawing_area.get_window().get_handle()
else:
xid = self.target.drawing_area.get_window().get_xid()
self.sink.set_window_handle(xid)
self.sink.expose()
else:
# Show the widget and wait for the realized callback
self.log("Target is not realized, showing the widget")
self.target.show()
class ScaleRuler(Gtk.DrawingArea, Zoomable, Loggable):
__gsignals__ = {
"button-press-event": "override",
"button-release-event": "override",
"motion-notify-event": "override",
"scroll-event": "override",
"seek": (GObject.SignalFlags.RUN_LAST, None,
[GObject.TYPE_UINT64])
}
border = 0
min_tick_spacing = 3
scale = [0, 0, 0, 0.5, 1, 2, 5, 10, 15, 30, 60, 120, 300, 600, 3600]
subdivide = ((1, 1.0), (2, 0.5), (10, .25))
def __init__(self, instance, hadj):
Gtk.DrawingArea.__init__(self)
Zoomable.__init__(self)
Loggable.__init__(self)
self.log("Creating new ScaleRuler")
self.app = instance
self._seeker = Seeker()
self.hadj = hadj
hadj.connect("value-changed", self._hadjValueChangedCb)
self.add_events(Gdk.EventMask.POINTER_MOTION_MASK |
Gdk.EventMask.BUTTON_PRESS_MASK | Gdk.EventMask.BUTTON_RELEASE_MASK |
Gdk.EventMask.SCROLL_MASK)
self.pixbuf = None
# all values are in pixels
self.pixbuf_offset = 0
self.pixbuf_offset_painted = 0
# This is the number of width we allocate for the pixbuf
self.pixbuf_multiples = 4
self.position = 0 # In nanoseconds
self.pressed = False
self.min_frame_spacing = 5.0
self.frame_height = 5.0
self.frame_rate = Gst.Fraction(1 / 1)
self.ns_per_frame = float(1 / self.frame_rate) * Gst.SECOND
self.connect('draw', self.drawCb)
self.connect('configure-event', self.configureEventCb)
self.callback_id = None
self.callback_id_scroll = None
def _hadjValueChangedCb(self, hadj):
self.pixbuf_offset = self.hadj.get_value()
if self.callback_id_scroll is not None:
GLib.source_remove(self.callback_id_scroll)
self.callback_id_scroll = GLib.timeout_add(100, self._maybeUpdate)
## Zoomable interface override
def _maybeUpdate(self):
self.queue_draw()
self.callback_id = None
return False
def zoomChanged(self):
if self.callback_id is not None:
GLib.source_remove(self.callback_id)
self.callback_id = GLib.timeout_add(100, self._maybeUpdate)
## timeline position changed method
def timelinePositionChanged(self, value, unused_frame=None):
self.position = value
self.queue_draw()
## Gtk.Widget overrides
def configureEventCb(self, widget, event, data=None):
self.debug("Configuring, height %d, width %d",
widget.get_allocated_width(), widget.get_allocated_height())
# Destroy previous buffer
if self.pixbuf is not None:
self.pixbuf.finish()
self.pixbuf = None
# Create a new buffer
self.pixbuf = cairo.ImageSurface(cairo.FORMAT_ARGB32,
widget.get_allocated_width(), widget.get_allocated_height())
return False
def drawCb(self, widget, cr):
if self.pixbuf is not None:
db = self.pixbuf
# Create cairo context with double buffer as is DESTINATION
cc = cairo.Context(db)
#draw everything
self.drawBackground(cc)
self.drawRuler(cc)
self.drawPosition(cc)
db.flush()
cr.set_source_surface(self.pixbuf, 0.0, 0.0)
cr.paint()
else:
self.info('No buffer to paint buffer')
return False
def do_button_press_event(self, event):
self.debug("button pressed at x:%d", event.x)
self.pressed = True
position = self.pixelToNs(event.x + self.pixbuf_offset)
self._seeker.seek(position)
return True
def do_button_release_event(self, event):
self.debug("button released at x:%d", event.x)
self.pressed = False
return False
def do_motion_notify_event(self, event):
position = self.pixelToNs(event.x + self.pixbuf_offset)
if self.pressed:
self.debug("motion at event.x %d", event.x)
self._seeker.seek(position)
human_time = beautify_length(position)
cur_frame = int(position / self.ns_per_frame) + 1
self.set_tooltip_text(human_time + "\n" + _("Frame #%d" % cur_frame))
return False
def do_scroll_event(self, event):
if event.scroll.state & Gdk.ModifierType.CONTROL_MASK:
# Control + scroll = zoom
if event.scroll.direction == Gdk.ScrollDirection.UP:
Zoomable.zoomIn()
self.app.gui.timeline_ui.zoomed_fitted = False
elif event.scroll.direction == Gdk.ScrollDirection.DOWN:
Zoomable.zoomOut()
self.app.gui.timeline_ui.zoomed_fitted = False
else:
# No modifier key held down, just scroll
if (event.scroll.direction == Gdk.ScrollDirection.UP
or event.scroll.direction == Gdk.ScrollDirection.LEFT):
self.app.gui.timeline_ui.scroll_left()
elif (event.scroll.direction == Gdk.ScrollDirection.DOWN
or event.scroll.direction == Gdk.ScrollDirection.RIGHT):
self.app.gui.timeline_ui.scroll_right()
def setProjectFrameRate(self, rate):
"""
Set the lowest scale based on project framerate
"""
self.frame_rate = rate
self.ns_per_frame = float(1 / self.frame_rate) * Gst.SECOND
self.scale[0] = float(2 / rate)
self.scale[1] = float(5 / rate)
self.scale[2] = float(10 / rate)
## Drawing methods
def drawBackground(self, cr):
style = self.get_style_context()
setCairoColor(cr, style.get_background_color(Gtk.StateFlags.NORMAL))
cr.rectangle(0, 0, cr.get_target().get_width(), cr.get_target().get_height())
cr.fill()
offset = int(self.nsToPixel(Gst.CLOCK_TIME_NONE)) - self.pixbuf_offset
if offset > 0:
setCairoColor(cr, style.get_background_color(Gtk.StateFlags.ACTIVE))
cr.rectangle(0, 0, int(offset), cr.get_target().get_height())
cr.fill()
def drawRuler(self, cr):
# FIXME use system defaults
cr.set_font_face(cairo.ToyFontFace("Cantarell"))
cr.set_font_size(13)
textwidth = cr.text_extents(time_to_string(0))[2]
for scale in self.scale:
spacing = Zoomable.zoomratio * scale
if spacing >= textwidth * 1.5:
break
offset = self.pixbuf_offset % spacing
self.drawFrameBoundaries(cr)
self.drawTicks(cr, offset, spacing, scale)
self.drawTimes(cr, offset, spacing, scale)
def drawTick(self, cr, paintpos, height):
# We need to use 0.5 pixel offsets to get a sharp 1 px line in cairo
paintpos = int(paintpos - 0.5) + 0.5
height = int(cr.get_target().get_height() * (1 - height))
style = self.get_style_context()
setCairoColor(cr, style.get_color(Gtk.StateType.NORMAL))
cr.set_line_width(1)
cr.move_to(paintpos, height)
cr.line_to(paintpos, cr.get_target().get_height())
cr.close_path()
cr.stroke()
def drawTicks(self, cr, offset, spacing, scale):
for subdivide, height in self.subdivide:
spc = spacing / float(subdivide)
if spc < self.min_tick_spacing:
break
paintpos = -spacing + 0.5
paintpos += spacing - offset
while paintpos < cr.get_target().get_width():
self.drawTick(cr, paintpos, height)
paintpos += spc
def drawTimes(self, cr, offset, spacing, scale):
# figure out what the optimal offset is
interval = long(Gst.SECOND * scale)
seconds = self.pixelToNs(self.pixbuf_offset)
paintpos = float(self.border) + 2
if offset > 0:
seconds = seconds - (seconds % interval) + interval
paintpos += spacing - offset
while paintpos < cr.get_target().get_width():
if paintpos < self.nsToPixel(Gst.CLOCK_TIME_NONE):
state = Gtk.StateType.ACTIVE
else:
state = Gtk.StateType.NORMAL
timevalue = time_to_string(long(seconds))
style = self.get_style_context()
setCairoColor(cr, style.get_color(state))
x_bearing, y_bearing = cr.text_extents("0")[:2]
cr.move_to(int(paintpos), 1 - y_bearing)
cr.show_text(timevalue)
paintpos += spacing
seconds += interval
def drawFrameBoundaries(self, cr):
"""
Draw the alternating rectangles that represent the project frames at
high zoom levels. These are based on the framerate set in the project
settings, not the actual frames on a video codec level.
"""
frame_width = self.nsToPixel(self.ns_per_frame)
if not frame_width >= self.min_frame_spacing:
return
offset = self.pixbuf_offset % frame_width
height = cr.get_target().get_height()
y = int(height - self.frame_height)
# INSENSITIVE is a dark shade of gray, but lacks contrast
# SELECTED will be bright blue and more visible to represent frames
style = self.get_style_context()
states = [style.get_background_color(Gtk.StateFlags.ACTIVE),
style.get_background_color(Gtk.StateFlags.SELECTED)]
frame_num = int(self.pixelToNs(self.pixbuf_offset) * float(self.frame_rate) / Gst.SECOND)
paintpos = self.pixbuf_offset - offset
max_pos = cr.get_target().get_width() + self.pixbuf_offset
while paintpos < max_pos:
paintpos = self.nsToPixel(1 / float(self.frame_rate) * Gst.SECOND * frame_num)
setCairoColor(cr, states[(frame_num + 1) % 2])
cr.rectangle(0.5 + paintpos - self.pixbuf_offset, y, frame_width, height)
cr.fill()
frame_num += 1
def drawPosition(self, context):
# a simple RED line will do for now
xpos = self.nsToPixel(self.position) + self.border - self.pixbuf_offset
context.save()
context.set_line_width(1.5)
context.set_source_rgb(1.0, 0, 0)
context.move_to(xpos, 0)
context.line_to(xpos, context.get_target().get_height())
context.stroke()
context.restore()
class PitiviViewer(Gtk.VBox, Loggable):
"""
A Widget to control and visualize a Pipeline
@ivar pipeline: The current pipeline
@type pipeline: L{Pipeline}
@ivar action: The action controlled by this Pipeline
@type action: L{ViewAction}
"""
__gtype_name__ = 'PitiviViewer'
__gsignals__ = {
"activate-playback-controls": (GObject.SignalFlags.RUN_LAST,
None, (GObject.TYPE_BOOLEAN,)),
}
INHIBIT_REASON = _("Currently playing")
def __init__(self, app, undock_action=None):
Gtk.VBox.__init__(self)
self.set_border_width(SPACING)
self.app = app
self.settings = app.settings
self.system = app.system
Loggable.__init__(self)
self.log("New PitiviViewer")
self.pipeline = None
self._tmp_pipeline = None # Used for displaying a preview when trimming
self.sink = None
self.docked = True
# Only used for restoring the pipeline position after a live clip trim preview:
self._oldTimelinePos = None
self._haveUI = False
self._createUi()
self.target = self.internal
self.undock_action = undock_action
if undock_action:
self.undock_action.connect("activate", self._toggleDocked)
if not self.settings.viewerDocked:
self.undock()
def setPipeline(self, pipeline, position=None):
"""
Set the Viewer to the given Pipeline.
Properly switches the currently set action to that new Pipeline.
@param pipeline: The Pipeline to switch to.
@type pipeline: L{Pipeline}.
@param position: Optional position to seek to initially.
"""
self.debug("self.pipeline:%r", self.pipeline)
self.seeker = Seeker()
self._disconnectFromPipeline()
if self.pipeline:
self.pipeline.set_state(Gst.State.NULL)
self.pipeline = pipeline
if self.pipeline:
self.pipeline.pause()
self.seeker.seek(position)
self.pipeline.connect("state-change", self._pipelineStateChangedCb)
self.pipeline.connect("position", self._positionCb)
self.pipeline.connect("duration-changed", self._durationChangedCb)
self.sink = pipeline.video_overlay
self._switch_output_window()
self._setUiActive()
def _disconnectFromPipeline(self):
self.debug("pipeline:%r", self.pipeline)
if self.pipeline is None:
# silently return, there's nothing to disconnect from
return
self.pipeline.disconnect_by_func(self._pipelineStateChangedCb)
self.pipeline.disconnect_by_func(self._positionCb)
self.pipeline.disconnect_by_func(self._durationChangedCb)
self.pipeline = None
def _setUiActive(self, active=True):
self.debug("active %r", active)
self.set_sensitive(active)
if self._haveUI:
for item in [self.goToStart_button, self.back_button,
self.playpause_button, self.forward_button,
self.goToEnd_button, self.timecode_entry]:
item.set_sensitive(active)
if active:
self.emit("activate-playback-controls", True)
def _externalWindowDeleteCb(self, window, event):
self.dock()
return True
def _externalWindowConfigureCb(self, window, event):
self.settings.viewerWidth = event.width
self.settings.viewerHeight = event.height
self.settings.viewerX = event.x
self.settings.viewerY = event.y
def _createUi(self):
""" Creates the Viewer GUI """
# Drawing area
# The aspect ratio gets overridden on startup by setDisplayAspectRatio
self.aframe = Gtk.AspectFrame(xalign=0.5, yalign=1.0, ratio=4.0 / 3.0,
obey_child=False)
self.internal = ViewerWidget(self.app.settings)
self.internal.init_transformation_events()
self.internal.show()
self.aframe.add(self.internal)
self.pack_start(self.aframe, True, True, 0)
self.external_window = Gtk.Window()
vbox = Gtk.VBox()
vbox.set_spacing(SPACING)
self.external_window.add(vbox)
self.external = ViewerWidget(self.app.settings)
vbox.pack_start(self.external, True, True, 0)
self.external_window.connect("delete-event", self._externalWindowDeleteCb)
self.external_window.connect("configure-event", self._externalWindowConfigureCb)
self.external_vbox = vbox
self.external_vbox.show_all()
# Buttons/Controls
bbox = Gtk.HBox()
boxalign = Gtk.Alignment(xalign=0.5, yalign=0.5, xscale=0.0, yscale=0.0)
boxalign.add(bbox)
self.pack_start(boxalign, False, True, 0)
self.goToStart_button = Gtk.ToolButton(Gtk.STOCK_MEDIA_PREVIOUS)
self.goToStart_button.connect("clicked", self._goToStartCb)
self.goToStart_button.set_tooltip_text(_("Go to the beginning of the timeline"))
self.goToStart_button.set_sensitive(False)
bbox.pack_start(self.goToStart_button, False, True, 0)
self.back_button = Gtk.ToolButton(Gtk.STOCK_MEDIA_REWIND)
self.back_button.connect("clicked", self._backCb)
self.back_button.set_tooltip_text(_("Go back one second"))
self.back_button.set_sensitive(False)
bbox.pack_start(self.back_button, False, True, 0)
self.playpause_button = PlayPauseButton()
self.playpause_button.connect("play", self._playButtonCb)
bbox.pack_start(self.playpause_button, False, True, 0)
self.playpause_button.set_sensitive(False)
self.forward_button = Gtk.ToolButton(Gtk.STOCK_MEDIA_FORWARD)
self.forward_button.connect("clicked", self._forwardCb)
self.forward_button.set_tooltip_text(_("Go forward one second"))
self.forward_button.set_sensitive(False)
bbox.pack_start(self.forward_button, False, True, 0)
self.goToEnd_button = Gtk.ToolButton(Gtk.STOCK_MEDIA_NEXT)
self.goToEnd_button.connect("clicked", self._goToEndCb)
self.goToEnd_button.set_tooltip_text(_("Go to the end of the timeline"))
self.goToEnd_button.set_sensitive(False)
bbox.pack_start(self.goToEnd_button, False, True, 0)
# current time
self.timecode_entry = TimeWidget()
self.timecode_entry.setWidgetValue(0)
self.timecode_entry.set_tooltip_text(_('Enter a timecode or frame number\nand press "Enter" to go to that position'))
self.timecode_entry.connectActivateEvent(self._entryActivateCb)
self.timecode_entry.connectFocusEvents(self._entryFocusInCb, self._entryFocusOutCb)
bbox.pack_start(self.timecode_entry, False, 10, 0)
self._haveUI = True
# Identify widgets for AT-SPI, making our test suite easier to develop
# These will show up in sniff, accerciser, etc.
self.goToStart_button.get_accessible().set_name("goToStart_button")
self.back_button.get_accessible().set_name("back_button")
self.playpause_button.get_accessible().set_name("playpause_button")
self.forward_button.get_accessible().set_name("forward_button")
self.goToEnd_button.get_accessible().set_name("goToEnd_button")
self.timecode_entry.get_accessible().set_name("timecode_entry")
screen = Gdk.Screen.get_default()
height = screen.get_height()
if height >= 800:
# show the controls and force the aspect frame to have at least the same
# width (+110, which is a magic number to minimize dead padding).
bbox.show_all()
req = bbox.size_request()
width = req.width
height = req.height
width += 110
height = int(width / self.aframe.props.ratio)
self.aframe.set_size_request(width, height)
self.show_all()
self.buttons = bbox
self.buttons_container = boxalign
def setDisplayAspectRatio(self, ratio):
"""
Sets the DAR of the Viewer to the given ratio.
@arg ratio: The aspect ratio to set on the viewer
@type ratio: L{float}
"""
self.debug("Setting ratio of %f [%r]", float(ratio), ratio)
try:
self.aframe.set_property("ratio", float(ratio))
except:
self.warning("could not set ratio !")
def _entryActivateCb(self, entry):
self._seekFromTimecodeWidget()
def _entryFocusInCb(self, entry, event):
self.app.gui.setActionsSensitive(False)
def _entryFocusOutCb(self, entry, event):
self._seekFromTimecodeWidget()
self.app.gui.setActionsSensitive(True)
def _seekFromTimecodeWidget(self):
nanoseconds = self.timecode_entry.getWidgetValue()
self.seeker.seek(nanoseconds)
## active Timeline calllbacks
def _durationChangedCb(self, unused_pipeline, duration):
if duration == 0:
self._setUiActive(False)
else:
self._setUiActive(True)
## Control Gtk.Button callbacks
def setZoom(self, zoom):
"""
Zoom in or out of the transformation box canvas.
This is called by clipproperties.
"""
if self.target.box:
maxSize = self.target.area
width = int(float(maxSize.width) * zoom)
height = int(float(maxSize.height) * zoom)
area = ((maxSize.width - width) / 2,
(maxSize.height - height) / 2,
width, height)
self.sink.set_render_rectangle(*area)
self.target.box.update_size(area)
self.target.zoom = zoom
self.target.sink = self.sink
self.target.renderbox()
def _playButtonCb(self, unused_button, playing):
self.app.current.pipeline.togglePlayback()
def _goToStartCb(self, unused_button):
self.seeker.seek(0)
def _backCb(self, unused_button):
# Seek backwards one second
self.seeker.seekRelative(0 - Gst.SECOND)
def _forwardCb(self, unused_button):
# Seek forward one second
self.seeker.seekRelative(Gst.SECOND)
def _goToEndCb(self, unused_button):
try:
end = self.app.current.pipeline.getDuration()
except:
self.warning("Couldn't get timeline duration")
try:
self.seeker.seek(end)
except:
self.warning("Couldn't seek to the end of the timeline")
## public methods for controlling playback
def undock(self):
if not self.undock_action:
self.error("Cannot undock because undock_action is missing.")
return
if not self.docked:
return
self.docked = False
self.settings.viewerDocked = False
self.undock_action.set_label(_("Dock Viewer"))
self.target = self.external
self.remove(self.buttons_container)
self.external_vbox.pack_end(self.buttons_container, False, False, 0)
self.external_window.set_type_hint(Gdk.WindowTypeHint.UTILITY)
self.external_window.show()
self.fullscreen_button = Gtk.ToggleToolButton(Gtk.STOCK_FULLSCREEN)
self.fullscreen_button.set_tooltip_text(_("Show this window in fullscreen"))
self.buttons.pack_end(self.fullscreen_button, expand=False, fill=False, padding=6)
self.fullscreen_button.show()
self.fullscreen_button.connect("toggled", self._toggleFullscreen)
# if we are playing, switch output immediately
if self.sink:
self._switch_output_window()
self.hide()
self.external_window.move(self.settings.viewerX, self.settings.viewerY)
self.external_window.resize(self.settings.viewerWidth, self.settings.viewerHeight)
def dock(self):
if not self.undock_action:
self.error("Cannot dock because undock_action is missing.")
return
if self.docked:
return
self.docked = True
self.settings.viewerDocked = True
self.undock_action.set_label(_("Undock Viewer"))
self.target = self.internal
self.fullscreen_button.destroy()
self.external_vbox.remove(self.buttons_container)
self.pack_end(self.buttons_container, False, False, 0)
self.show()
# if we are playing, switch output immediately
if self.sink:
self._switch_output_window()
self.external_window.hide()
def _toggleDocked(self, action):
if self.docked:
self.undock()
else:
self.dock()
def _toggleFullscreen(self, widget):
if widget.get_active():
self.external_window.hide()
# GTK doesn't let us fullscreen utility windows
self.external_window.set_type_hint(Gdk.WindowTypeHint.NORMAL)
self.external_window.show()
self.external_window.fullscreen()
widget.set_tooltip_text(_("Exit fullscreen mode"))
else:
self.external_window.unfullscreen()
widget.set_tooltip_text(_("Show this window in fullscreen"))
self.external_window.hide()
self.external_window.set_type_hint(Gdk.WindowTypeHint.UTILITY)
self.external_window.show()
def _positionCb(self, unused_pipeline, position):
"""
If the timeline position changed, update the viewer UI widgets.
This is meant to be called either by the gobject timer when playing,
or by mainwindow's _timelineSeekCb when the timer is disabled.
"""
self.timecode_entry.setWidgetValue(position, False)
def clipTrimPreview(self, tl_obj, position):
"""
While a clip is being trimmed, show a live preview of it.
"""
if isinstance(tl_obj, GES.TitleClip) or tl_obj.props.is_image or not hasattr(tl_obj, "get_uri"):
self.log("%s is an image or has no URI, so not previewing trim" % tl_obj)
return False
clip_uri = tl_obj.props.uri
cur_time = time()
if not self._tmp_pipeline:
self.debug("Creating temporary pipeline for clip %s, position %s",
clip_uri, print_ns(position))
self._oldTimelinePos = self.pipeline.getPosition()
self._tmp_pipeline = Gst.ElementFactory.make("playbin", None)
self._tmp_pipeline.set_property("uri", clip_uri)
self.setPipeline(SimplePipeline(self._tmp_pipeline, self._tmp_pipeline))
self._lastClipTrimTime = cur_time
if (cur_time - self._lastClipTrimTime) > 0.2:
# Do not seek more than once every 200 ms (for performance)
self._tmp_pipeline.seek_simple(Gst.Format.TIME, Gst.SeekFlags.FLUSH, position)
self._lastClipTrimTime = cur_time
def clipTrimPreviewFinished(self):
"""
After trimming a clip, reset the project pipeline into the viewer.
"""
if self._tmp_pipeline is not None:
self._tmp_pipeline.set_state(Gst.State.NULL)
self._tmp_pipeline = None # Free the memory
self.setPipeline(self.app.current.pipeline, self._oldTimelinePos)
self.debug("Back to old pipeline")
def _pipelineStateChangedCb(self, pipeline, state):
"""
When playback starts/stops, update the viewer widget,
play/pause button and (un)inhibit the screensaver.
This is meant to be called by mainwindow.
"""
self.info("current state changed : %s", state)
if int(state) == int(Gst.State.PLAYING):
self.playpause_button.setPause()
self.system.inhibitScreensaver(self.INHIBIT_REASON)
elif int(state) == int(Gst.State.PAUSED):
self.playpause_button.setPlay()
self.system.uninhibitScreensaver(self.INHIBIT_REASON)
else:
self.sink = None
self.system.uninhibitScreensaver(self.INHIBIT_REASON)
self.internal._currentStateCb(self.pipeline, state)
def _switch_output_window(self):
Gdk.threads_enter()
# Prevent cases where target has no "window_xid" (yes, it happens!):
self.target.show()
self.sink.set_window_handle(self.target.window_xid)
self.sink.expose()
Gdk.threads_leave()
class ScaleRuler(Gtk.DrawingArea, Zoomable, Loggable):
"""
Widget for displaying the ruler.
Displays a series of consecutive intervals. For each interval its beginning
time is shown. If zoomed in enough, shows the frames in alternate colors.
"""
__gsignals__ = {
"button-press-event": "override",
"button-release-event": "override",
"motion-notify-event": "override",
"scroll-event": "override",
"seek": (GObject.SignalFlags.RUN_LAST, None, [GObject.TYPE_UINT64])
}
def __init__(self, timeline, hadj):
Gtk.DrawingArea.__init__(self)
Zoomable.__init__(self)
Loggable.__init__(self)
self.log("Creating new ScaleRuler")
# Allows stealing focus from other GTK widgets, prevent accidents:
self.props.can_focus = True
self.connect("focus-in-event", self._focusInCb)
self.connect("focus-out-event", self._focusOutCb)
self.timeline = timeline
self._background_color = timeline.get_style_context().lookup_color(
'theme_bg_color')[1]
self._seeker = Seeker()
self.hadj = hadj
hadj.connect("value-changed", self._hadjValueChangedCb)
self.add_events(Gdk.EventMask.POINTER_MOTION_MASK
| Gdk.EventMask.BUTTON_PRESS_MASK
| Gdk.EventMask.BUTTON_RELEASE_MASK
| Gdk.EventMask.SCROLL_MASK)
self.pixbuf = None
# all values are in pixels
self.pixbuf_offset = 0
self.pixbuf_offset_painted = 0
# This is the number of width we allocate for the pixbuf
self.pixbuf_multiples = 4
self.position = 0 # In nanoseconds
self.pressed = False
self.frame_rate = Gst.Fraction(1 / 1)
self.ns_per_frame = float(1 / self.frame_rate) * Gst.SECOND
self.connect('draw', self.drawCb)
self.connect('configure-event', self.configureEventCb)
self.callback_id = None
self.callback_id_scroll = None
self.set_size_request(0, HEIGHT)
style = self.get_style_context()
color_normal = style.get_color(Gtk.StateFlags.NORMAL)
color_insensitive = style.get_color(Gtk.StateFlags.INSENSITIVE)
self._color_normal = color_normal
self._color_dimmed = Gdk.RGBA(
*[(x * 3 + y * 2) / 5
for x, y in ((color_normal.red, color_insensitive.red),
(color_normal.green, color_insensitive.green),
(color_normal.blue, color_insensitive.blue))])
self.scales = SCALES
def _focusInCb(self, unused_widget, unused_arg):
self.log("Ruler has grabbed focus")
self.timeline.setActionsSensitivity(True)
def _focusOutCb(self, unused_widget, unused_arg):
self.log("Ruler has lost focus")
self.timeline.setActionsSensitivity(False)
def _hadjValueChangedCb(self, unused_arg):
self.pixbuf_offset = self.hadj.get_value()
if self.callback_id_scroll is not None:
GLib.source_remove(self.callback_id_scroll)
self.callback_id_scroll = GLib.timeout_add(100, self._maybeUpdate)
# Zoomable interface override
def _maybeUpdate(self):
self.queue_draw()
self.callback_id = None
self.callback_id_scroll = None
return False
def zoomChanged(self):
if self.callback_id is not None:
GLib.source_remove(self.callback_id)
self.callback_id = GLib.timeout_add(100, self._maybeUpdate)
# Timeline position changed method
def setPipeline(self, pipeline):
pipeline.connect('position', self.timelinePositionCb)
def timelinePositionCb(self, unused_pipeline, position):
self.position = position
self.queue_draw()
# Gtk.Widget overrides
def configureEventCb(self, widget, unused_event, unused_data=None):
width = widget.get_allocated_width()
height = widget.get_allocated_height()
self.debug("Configuring, height %d, width %d", width, height)
# Destroy previous buffer
if self.pixbuf is not None:
self.pixbuf.finish()
self.pixbuf = None
# Create a new buffer
self.height = height
self.pixbuf = cairo.ImageSurface(cairo.FORMAT_ARGB32, width, height)
return False
def drawCb(self, unused_widget, context):
if self.pixbuf is None:
self.info('No buffer to paint')
return False
self.drawBackground(context)
self.drawRuler(context)
self.drawPosition(context)
return False
def do_button_press_event(self, event):
self.debug("button pressed at x:%d", event.x)
self.pressed = True
position = self.pixelToNs(event.x + self.pixbuf_offset)
self._seeker.seek(position, on_idle=True)
return True
def do_button_release_event(self, event):
self.debug("button released at x:%d", event.x)
self.grab_focus() # Prevent other widgets from being confused
self.pressed = False
return False
def do_motion_notify_event(self, event):
position = self.pixelToNs(event.x + self.pixbuf_offset)
if self.pressed:
self.debug("motion at event.x %d", event.x)
self._seeker.seek(position, on_idle=True)
human_time = beautify_length(position)
cur_frame = int(position / self.ns_per_frame) + 1
self.set_tooltip_text(human_time + "\n" + _("Frame #%d" % cur_frame))
return False
def do_scroll_event(self, event):
if event.scroll.state & Gdk.ModifierType.CONTROL_MASK:
# Control + scroll = zoom
if event.scroll.direction == Gdk.ScrollDirection.UP:
Zoomable.zoomIn()
self.timeline.zoomed_fitted = False
elif event.scroll.direction == Gdk.ScrollDirection.DOWN:
Zoomable.zoomOut()
self.timeline.zoomed_fitted = False
else:
# No modifier key held down, just scroll
if (event.scroll.direction == Gdk.ScrollDirection.UP
or event.scroll.direction == Gdk.ScrollDirection.LEFT):
self.timeline.scroll_left()
elif (event.scroll.direction == Gdk.ScrollDirection.DOWN
or event.scroll.direction == Gdk.ScrollDirection.RIGHT):
self.timeline.scroll_right()
def setProjectFrameRate(self, rate):
"""
Set the lowest scale based on project framerate
"""
self.frame_rate = rate
self.ns_per_frame = float(1 / self.frame_rate) * Gst.SECOND
self.scales = (float(2 / rate), float(5 / rate), float(
10 / rate)) + SCALES
# Drawing methods
def drawBackground(self, context):
style = self.get_style_context()
set_cairo_color(context, self._background_color)
width = context.get_target().get_width()
height = context.get_target().get_height()
context.rectangle(0, 0, width, height)
context.fill()
offset = int(self.nsToPixel(Gst.CLOCK_TIME_NONE)) - self.pixbuf_offset
if offset > 0:
set_cairo_color(context,
style.get_background_color(Gtk.StateFlags.ACTIVE))
context.rectangle(0, 0, int(offset), height)
context.fill()
def drawRuler(self, context):
context.set_font_face(NORMAL_FONT)
context.set_font_size(NORMAL_FONT_SIZE)
spacing, scale = self._getSpacing(context)
offset = self.pixbuf_offset % spacing
self.drawFrameBoundaries(context)
self.drawTicks(context, offset, spacing)
self.drawTimes(context, offset, spacing, scale)
def _getSpacing(self, context):
textwidth = context.text_extents(time_to_string(0))[2]
zoom = Zoomable.zoomratio
for scale in self.scales:
spacing = scale * zoom
if spacing >= textwidth * 1.5:
return spacing, scale
raise Exception(
"Failed to find an interval size for textwidth:%s, zoomratio:%s" %
(textwidth, Zoomable.zoomratio))
def drawTicks(self, context, offset, spacing):
for count_per_interval, height_ratio in TICK_TYPES:
space = float(spacing) / count_per_interval
if space < MIN_TICK_SPACING_PIXELS:
break
paintpos = 0.5 - offset
set_cairo_color(context, self._color_normal)
while paintpos < context.get_target().get_width():
self._drawTick(context, paintpos, height_ratio)
paintpos += space
def _drawTick(self, context, paintpos, height_ratio):
# We need to use 0.5 pixel offsets to get a sharp 1 px line in cairo
paintpos = int(paintpos - 0.5) + 0.5
y = self.height * (1.0 - height_ratio)
context.set_line_width(1)
context.move_to(paintpos, y)
context.line_to(paintpos, self.height)
context.close_path()
context.stroke()
def drawTimes(self, context, offset, spacing, scale):
# figure out what the optimal offset is
interval = int(Gst.SECOND * scale)
current_time = self.pixelToNs(self.pixbuf_offset)
paintpos = TIMES_LEFT_MARGIN_PIXELS
if offset > 0:
current_time = current_time - (current_time % interval) + interval
paintpos += spacing - offset
state = Gtk.StateFlags.NORMAL
style = self.get_style_context()
set_cairo_color(context, style.get_color(state))
y_bearing = context.text_extents("0")[1]
millis = scale < 1
def split(x):
# Seven elements: h : mm : ss . mmm
# Using negative indices because the first element (hour)
# can have a variable length.
return x[:-10], x[-10], x[-9:-7], x[-7], x[-6:-4], x[-4], x[-3:]
previous = split(time_to_string(max(0, current_time - interval)))
width = context.get_target().get_width()
while paintpos < width:
context.move_to(int(paintpos), 1 - y_bearing)
current = split(time_to_string(int(current_time)))
self._drawTime(context, current, previous, millis)
previous = current
paintpos += spacing
current_time += interval
def _drawTime(self, context, current, previous, millis):
hour = int(current[0])
for index, (element,
previous_element) in enumerate(zip(current, previous)):
if index <= 1 and not hour:
continue
if index >= 5 and not millis:
break
if element == previous_element:
color = self._color_dimmed
else:
color = self._color_normal
set_cairo_color(context, color)
# Display the millis with a smaller font
small = index >= 5
if small:
context.set_font_size(SMALL_FONT_SIZE)
context.show_text(element)
if small:
context.set_font_size(NORMAL_FONT_SIZE)
def drawFrameBoundaries(self, context):
"""
Draw the alternating rectangles that represent the project frames at
high zoom levels. These are based on the framerate set in the project
settings, not the actual frames on a video codec level.
"""
frame_width = self.nsToPixel(self.ns_per_frame)
if not frame_width >= FRAME_MIN_WIDTH_PIXELS:
return
offset = self.pixbuf_offset % frame_width
height = context.get_target().get_height()
y = int(height - FRAME_HEIGHT_PIXELS)
# INSENSITIVE is a dark shade of gray, but lacks contrast
# SELECTED will be bright blue and more visible to represent frames
style = self.get_style_context()
states = [
style.get_background_color(Gtk.StateFlags.ACTIVE),
style.get_background_color(Gtk.StateFlags.SELECTED)
]
frame_num = int(
self.pixelToNs(self.pixbuf_offset) * float(self.frame_rate) /
Gst.SECOND)
paintpos = self.pixbuf_offset - offset
max_pos = context.get_target().get_width() + self.pixbuf_offset
while paintpos < max_pos:
paintpos = self.nsToPixel(1 / float(self.frame_rate) * Gst.SECOND *
frame_num)
set_cairo_color(context, states[(frame_num + 1) % 2])
context.rectangle(0.5 + paintpos - self.pixbuf_offset, y,
frame_width, height)
context.fill()
frame_num += 1
def drawPosition(self, context):
# Add 0.5 so that the line center is at the middle of the pixel,
# without this the line appears blurry.
xpos = self.nsToPixel(self.position) - self.pixbuf_offset + 0.5
context.set_line_width(PLAYHEAD_WIDTH + 2)
set_cairo_color(context, PLAYHEAD_COLOR)
context.move_to(xpos, 0)
context.line_to(xpos, context.get_target().get_height())
context.stroke()
class ScaleRuler(Gtk.DrawingArea, Zoomable, Loggable):
"""
Widget for displaying the ruler.
Displays a series of consecutive intervals. For each interval its beginning
time is shown. If zoomed in enough, shows the frames in alternate colors.
"""
__gsignals__ = {
"button-press-event": "override",
"button-release-event": "override",
"motion-notify-event": "override",
"scroll-event": "override",
"seek": (GObject.SignalFlags.RUN_LAST, None,
[GObject.TYPE_UINT64])
}
def __init__(self, timeline, hadj):
Gtk.DrawingArea.__init__(self)
Zoomable.__init__(self)
Loggable.__init__(self)
self.log("Creating new ScaleRuler")
# Allows stealing focus from other GTK widgets, prevent accidents:
self.props.can_focus = True
self.connect("focus-in-event", self._focusInCb)
self.connect("focus-out-event", self._focusOutCb)
self.timeline = timeline
self._background_color = timeline.get_style_context().lookup_color('theme_bg_color')[1]
self._seeker = Seeker()
self.hadj = hadj
hadj.connect("value-changed", self._hadjValueChangedCb)
self.add_events(Gdk.EventMask.POINTER_MOTION_MASK |
Gdk.EventMask.BUTTON_PRESS_MASK | Gdk.EventMask.BUTTON_RELEASE_MASK |
Gdk.EventMask.SCROLL_MASK)
self.pixbuf = None
# all values are in pixels
self.pixbuf_offset = 0
self.pixbuf_offset_painted = 0
# This is the number of width we allocate for the pixbuf
self.pixbuf_multiples = 4
self.position = 0 # In nanoseconds
self.pressed = False
self.frame_rate = Gst.Fraction(1 / 1)
self.ns_per_frame = float(1 / self.frame_rate) * Gst.SECOND
self.connect('draw', self.drawCb)
self.connect('configure-event', self.configureEventCb)
self.callback_id = None
self.callback_id_scroll = None
self.set_size_request(0, 25)
style = self.get_style_context()
color_normal = style.get_color(Gtk.StateFlags.NORMAL)
color_insensitive = style.get_color(Gtk.StateFlags.INSENSITIVE)
self._color_normal = color_normal
self._color_dimmed = Gdk.RGBA(
*[(x * 3 + y * 2) / 5
for x, y in ((color_normal.red, color_insensitive.red),
(color_normal.green, color_insensitive.green),
(color_normal.blue, color_insensitive.blue))])
self.scales = SCALES
def _focusInCb(self, unused_widget, unused_arg):
self.log("Ruler has grabbed focus")
self.timeline.setActionsSensitivity(True)
def _focusOutCb(self, unused_widget, unused_arg):
self.log("Ruler has lost focus")
self.timeline.setActionsSensitivity(False)
def _hadjValueChangedCb(self, unused_arg):
self.pixbuf_offset = self.hadj.get_value()
if self.callback_id_scroll is not None:
GLib.source_remove(self.callback_id_scroll)
self.callback_id_scroll = GLib.timeout_add(100, self._maybeUpdate)
## Zoomable interface override
def _maybeUpdate(self):
self.queue_draw()
self.callback_id = None
self.callback_id_scroll = None
return False
def zoomChanged(self):
if self.callback_id is not None:
GLib.source_remove(self.callback_id)
self.callback_id = GLib.timeout_add(100, self._maybeUpdate)
## timeline position changed method
def setPipeline(self, pipeline):
pipeline.connect('position', self.timelinePositionCb)
def timelinePositionCb(self, unused_pipeline, position):
self.position = position
self.queue_draw()
## Gtk.Widget overrides
def configureEventCb(self, widget, unused_event, unused_data=None):
width = widget.get_allocated_width()
height = widget.get_allocated_height()
self.debug("Configuring, height %d, width %d", width, height)
# Destroy previous buffer
if self.pixbuf is not None:
self.pixbuf.finish()
self.pixbuf = None
# Create a new buffer
self.pixbuf = cairo.ImageSurface(cairo.FORMAT_ARGB32, width, height)
return False
def drawCb(self, unused_widget, context):
if self.pixbuf is None:
self.info('No buffer to paint')
return False
pixbuf = self.pixbuf
# Draw on a temporary context and then copy everything.
drawing_context = cairo.Context(pixbuf)
self.drawBackground(drawing_context)
self.drawRuler(drawing_context)
self.drawPosition(drawing_context)
pixbuf.flush()
context.set_source_surface(self.pixbuf, 0.0, 0.0)
context.paint()
return False
def do_button_press_event(self, event):
self.debug("button pressed at x:%d", event.x)
self.pressed = True
position = self.pixelToNs(event.x + self.pixbuf_offset)
self._seeker.seek(position, on_idle=True)
return True
def do_button_release_event(self, event):
self.debug("button released at x:%d", event.x)
self.grab_focus() # Prevent other widgets from being confused
self.pressed = False
return False
def do_motion_notify_event(self, event):
position = self.pixelToNs(event.x + self.pixbuf_offset)
if self.pressed:
self.debug("motion at event.x %d", event.x)
self._seeker.seek(position, on_idle=True)
human_time = beautify_length(position)
cur_frame = int(position / self.ns_per_frame) + 1
self.set_tooltip_text(human_time + "\n" + _("Frame #%d" % cur_frame))
return False
def do_scroll_event(self, event):
if event.scroll.state & Gdk.ModifierType.CONTROL_MASK:
# Control + scroll = zoom
if event.scroll.direction == Gdk.ScrollDirection.UP:
Zoomable.zoomIn()
self.timeline.zoomed_fitted = False
elif event.scroll.direction == Gdk.ScrollDirection.DOWN:
Zoomable.zoomOut()
self.timeline.zoomed_fitted = False
else:
# No modifier key held down, just scroll
if (event.scroll.direction == Gdk.ScrollDirection.UP
or event.scroll.direction == Gdk.ScrollDirection.LEFT):
self.timeline.scroll_left()
elif (event.scroll.direction == Gdk.ScrollDirection.DOWN
or event.scroll.direction == Gdk.ScrollDirection.RIGHT):
self.timeline.scroll_right()
def setProjectFrameRate(self, rate):
"""
Set the lowest scale based on project framerate
"""
self.frame_rate = rate
self.ns_per_frame = float(1 / self.frame_rate) * Gst.SECOND
self.scales = (float(2 / rate), float(5 / rate), float(10 / rate)) + SCALES
## Drawing methods
def drawBackground(self, context):
style = self.get_style_context()
set_cairo_color(context, self._background_color)
width = context.get_target().get_width()
height = context.get_target().get_height()
context.rectangle(0, 0, width, height)
context.fill()
offset = int(self.nsToPixel(Gst.CLOCK_TIME_NONE)) - self.pixbuf_offset
if offset > 0:
set_cairo_color(context, style.get_background_color(Gtk.StateFlags.ACTIVE))
context.rectangle(0, 0, int(offset), context.get_target().get_height())
context.fill()
def drawRuler(self, context):
context.set_font_face(NORMAL_FONT)
context.set_font_size(NORMAL_FONT_SIZE)
spacing, scale = self._getSpacing(context)
offset = self.pixbuf_offset % spacing
self.drawFrameBoundaries(context)
self.drawTicks(context, offset, spacing)
self.drawTimes(context, offset, spacing, scale)
def _getSpacing(self, context):
textwidth = context.text_extents(time_to_string(0))[2]
zoom = Zoomable.zoomratio
for scale in self.scales:
spacing = scale * zoom
if spacing >= textwidth * 1.5:
return spacing, scale
raise Exception("Failed to find an interval size for textwidth:%s, zoomratio:%s" % (textwidth, Zoomable.zoomratio))
def drawTicks(self, context, offset, spacing):
for count_per_interval, height_ratio in TICK_TYPES:
space = float(spacing) / count_per_interval
if space < MIN_TICK_SPACING_PIXELS:
break
paintpos = 0.5 - offset
set_cairo_color(context, self._color_normal)
while paintpos < context.get_target().get_width():
self._drawTick(context, paintpos, height_ratio)
paintpos += space
def _drawTick(self, context, paintpos, height_ratio):
# We need to use 0.5 pixel offsets to get a sharp 1 px line in cairo
paintpos = int(paintpos - 0.5) + 0.5
target_height = context.get_target().get_height()
y = int(target_height * (1 - height_ratio))
context.set_line_width(1)
context.move_to(paintpos, y)
context.line_to(paintpos, target_height)
context.close_path()
context.stroke()
def drawTimes(self, context, offset, spacing, scale):
# figure out what the optimal offset is
interval = long(Gst.SECOND * scale)
current_time = self.pixelToNs(self.pixbuf_offset)
paintpos = TIMES_LEFT_MARGIN_PIXELS
if offset > 0:
current_time = current_time - (current_time % interval) + interval
paintpos += spacing - offset
state = Gtk.StateFlags.NORMAL
style = self.get_style_context()
set_cairo_color(context, style.get_color(state))
y_bearing = context.text_extents("0")[1]
millis = scale < 1
def split(x):
# Seven elements: h : mm : ss . mmm
# Using negative indices because the first element (hour)
# can have a variable length.
return x[:-10], x[-10], x[-9:-7], x[-7], x[-6:-4], x[-4], x[-3:]
previous = split(time_to_string(max(0, current_time - interval)))
width = context.get_target().get_width()
while paintpos < width:
context.move_to(int(paintpos), 1 - y_bearing)
current = split(time_to_string(long(current_time)))
self._drawTime(context, current, previous, millis)
previous = current
paintpos += spacing
current_time += interval
def _drawTime(self, context, current, previous, millis):
hour = int(current[0])
for index, (element, previous_element) in enumerate(zip(current, previous)):
if index <= 1 and not hour:
continue
if index >= 5 and not millis:
break
if element == previous_element:
color = self._color_dimmed
else:
color = self._color_normal
set_cairo_color(context, color)
# Display the millis with a smaller font
small = index >= 5
if small:
context.set_font_size(SMALL_FONT_SIZE)
context.show_text(element)
if small:
context.set_font_size(NORMAL_FONT_SIZE)
def drawFrameBoundaries(self, context):
"""
Draw the alternating rectangles that represent the project frames at
high zoom levels. These are based on the framerate set in the project
settings, not the actual frames on a video codec level.
"""
frame_width = self.nsToPixel(self.ns_per_frame)
if not frame_width >= FRAME_MIN_WIDTH_PIXELS:
return
offset = self.pixbuf_offset % frame_width
height = context.get_target().get_height()
y = int(height - FRAME_HEIGHT_PIXELS)
# INSENSITIVE is a dark shade of gray, but lacks contrast
# SELECTED will be bright blue and more visible to represent frames
style = self.get_style_context()
states = [style.get_background_color(Gtk.StateFlags.ACTIVE),
style.get_background_color(Gtk.StateFlags.SELECTED)]
frame_num = int(self.pixelToNs(self.pixbuf_offset) * float(self.frame_rate) / Gst.SECOND)
paintpos = self.pixbuf_offset - offset
max_pos = context.get_target().get_width() + self.pixbuf_offset
while paintpos < max_pos:
paintpos = self.nsToPixel(1 / float(self.frame_rate) * Gst.SECOND * frame_num)
set_cairo_color(context, states[(frame_num + 1) % 2])
context.rectangle(0.5 + paintpos - self.pixbuf_offset, y, frame_width, height)
context.fill()
frame_num += 1
def drawPosition(self, context):
# Add 0.5 so that the line center is at the middle of the pixel,
# without this the line appears blurry.
xpos = self.nsToPixel(self.position) - self.pixbuf_offset + 0.5
context.set_line_width(PLAYHEAD_WIDTH + 2)
set_cairo_color(context, PLAYHEAD_COLOR)
context.move_to(xpos, 0)
context.line_to(xpos, context.get_target().get_height())
context.stroke()
class ViewerContainer(Gtk.Box, Loggable):
"""
A wiget holding a viewer and the controls.
"""
__gtype_name__ = 'ViewerContainer'
__gsignals__ = {
"activate-playback-controls": (GObject.SignalFlags.RUN_LAST,
None, (GObject.TYPE_BOOLEAN,)),
}
INHIBIT_REASON = _("Currently playing")
def __init__(self, app):
Gtk.Box.__init__(self)
self.set_border_width(SPACING)
self.app = app
self.settings = app.settings
self.system = app.system
Loggable.__init__(self)
self.log("New ViewerContainer")
self.pipeline = None
self.docked = True
self.seeker = Seeker()
self.target = None
# Only used for restoring the pipeline position after a live clip trim
# preview:
self._oldTimelinePos = None
self._haveUI = False
self._createUi()
self.__owning_pipeline = False
if not self.settings.viewerDocked:
self.undock()
def setPipeline(self, pipeline, position=None):
"""
Set the Viewer to the given Pipeline.
Properly switches the currently set action to that new Pipeline.
@param pipeline: The Pipeline to switch to.
@type pipeline: L{Pipeline}.
@param position: Optional position to seek to initially.
"""
self._disconnectFromPipeline()
if self.target:
parent = self.target.get_parent()
if parent:
parent.remove(self.target)
self.debug("New pipeline: %r", pipeline)
self.pipeline = pipeline
if position:
self.seeker.seek(position)
self.pipeline.connect("state-change", self._pipelineStateChangedCb)
self.pipeline.connect("position", self._positionCb)
self.pipeline.connect("duration-changed", self._durationChangedCb)
self.__owning_pipeline = False
self.__createNewViewer()
self._setUiActive()
self.pipeline.pause()
def __createNewViewer(self):
self.sink = self.pipeline.createSink()
self.pipeline.setSink(self.sink)
self.target = ViewerWidget(self.sink, self.app)
if self.docked:
self.pack_start(self.target, True, True, 0)
screen = Gdk.Screen.get_default()
height = screen.get_height()
if height >= 800:
# show the controls and force the aspect frame to have at least the same
# width (+110, which is a magic number to minimize dead padding).
req = self.buttons.size_request()
width = req.width
height = req.height
width += 110
height = int(width / self.target.props.ratio)
self.target.set_size_request(width, height)
else:
self.external_vbox.pack_start(self.target, False, False, 0)
self.target.props.expand = True
self.external_vbox.child_set(self.target, fill=True)
self.setDisplayAspectRatio(self.app.project_manager.current_project.getDAR())
self.target.show_all()
def _disconnectFromPipeline(self):
self.debug("Previous pipeline: %r", self.pipeline)
if self.pipeline is None:
# silently return, there's nothing to disconnect from
return
self.pipeline.disconnect_by_func(self._pipelineStateChangedCb)
self.pipeline.disconnect_by_func(self._positionCb)
self.pipeline.disconnect_by_func(self._durationChangedCb)
if self.__owning_pipeline:
self.pipeline.release()
self.pipeline = None
def _setUiActive(self, active=True):
self.debug("active %r", active)
self.set_sensitive(active)
if self._haveUI:
for item in [self.goToStart_button, self.back_button,
self.playpause_button, self.forward_button,
self.goToEnd_button, self.timecode_entry]:
item.set_sensitive(active)
if active:
self.emit("activate-playback-controls", True)
def _externalWindowDeleteCb(self, unused_window, unused_event):
self.dock()
return True
def _externalWindowConfigureCb(self, unused_window, event):
self.settings.viewerWidth = event.width
self.settings.viewerHeight = event.height
self.settings.viewerX = event.x
self.settings.viewerY = event.y
def _createUi(self):
""" Creates the Viewer GUI """
self.set_orientation(Gtk.Orientation.VERTICAL)
self.external_window = Gtk.Window()
vbox = Gtk.Box()
vbox.set_orientation(Gtk.Orientation.VERTICAL)
vbox.set_spacing(SPACING)
self.external_window.add(vbox)
self.external_window.connect(
"delete-event", self._externalWindowDeleteCb)
self.external_window.connect(
"configure-event", self._externalWindowConfigureCb)
self.external_vbox = vbox
# Buttons/Controls
bbox = Gtk.Box()
bbox.set_orientation(Gtk.Orientation.HORIZONTAL)
bbox.set_property("valign", Gtk.Align.CENTER)
bbox.set_property("halign", Gtk.Align.CENTER)
self.pack_end(bbox, False, False, SPACING)
self.goToStart_button = Gtk.ToolButton()
self.goToStart_button.set_icon_name("media-skip-backward")
self.goToStart_button.connect("clicked", self._goToStartCb)
self.goToStart_button.set_tooltip_text(
_("Go to the beginning of the timeline"))
self.goToStart_button.set_sensitive(False)
bbox.pack_start(self.goToStart_button, False, False, 0)
self.back_button = Gtk.ToolButton()
self.back_button.set_icon_name("media-seek-backward")
self.back_button.connect("clicked", self._backCb)
self.back_button.set_tooltip_text(_("Go back one second"))
self.back_button.set_sensitive(False)
bbox.pack_start(self.back_button, False, False, 0)
self.playpause_button = PlayPauseButton()
self.playpause_button.connect("play", self._playButtonCb)
bbox.pack_start(self.playpause_button, False, False, 0)
self.playpause_button.set_sensitive(False)
self.forward_button = Gtk.ToolButton()
self.forward_button.set_icon_name("media-seek-forward")
self.forward_button.connect("clicked", self._forwardCb)
self.forward_button.set_tooltip_text(_("Go forward one second"))
self.forward_button.set_sensitive(False)
bbox.pack_start(self.forward_button, False, False, 0)
self.goToEnd_button = Gtk.ToolButton()
self.goToEnd_button.set_icon_name("media-skip-forward")
self.goToEnd_button.connect("clicked", self._goToEndCb)
self.goToEnd_button.set_tooltip_text(
_("Go to the end of the timeline"))
self.goToEnd_button.set_sensitive(False)
bbox.pack_start(self.goToEnd_button, False, False, 0)
self.timecode_entry = TimeWidget()
self.timecode_entry.setWidgetValue(0)
self.timecode_entry.set_tooltip_text(
_('Enter a timecode or frame number\nand press "Enter" to go to that position'))
self.timecode_entry.connectActivateEvent(self._entryActivateCb)
bbox.pack_start(self.timecode_entry, False, 10, 0)
self.undock_button = Gtk.ToolButton()
self.undock_button.set_icon_name("view-restore")
self.undock_button.connect("clicked", self.undock)
self.undock_button.set_tooltip_text(
_("Detach the viewer\nYou can re-attach it by closing the newly created window."))
bbox.pack_start(self.undock_button, False, False, 0)
self._haveUI = True
# Identify widgets for AT-SPI, making our test suite easier to develop
# These will show up in sniff, accerciser, etc.
self.goToStart_button.get_accessible().set_name("goToStart_button")
self.back_button.get_accessible().set_name("back_button")
self.playpause_button.get_accessible().set_name("playpause_button")
self.forward_button.get_accessible().set_name("forward_button")
self.goToEnd_button.get_accessible().set_name("goToEnd_button")
self.timecode_entry.get_accessible().set_name("timecode_entry")
self.undock_button.get_accessible().set_name("undock_button")
self.buttons = bbox
self.buttons_container = bbox
self.show_all()
self.external_vbox.show_all()
def setDisplayAspectRatio(self, ratio):
self.debug("Setting aspect ratio to %f [%r]", float(ratio), ratio)
self.target.setDisplayAspectRatio(ratio)
def _entryActivateCb(self, unused_entry):
self._seekFromTimecodeWidget()
def _seekFromTimecodeWidget(self):
nanoseconds = self.timecode_entry.getWidgetValue()
self.seeker.seek(nanoseconds)
# Active Timeline calllbacks
def _durationChangedCb(self, unused_pipeline, duration):
if duration == 0:
self._setUiActive(False)
else:
self._setUiActive(True)
def _playButtonCb(self, unused_button, unused_playing):
self.app.project_manager.current_project.pipeline.togglePlayback()
self.app.gui.focusTimeline()
def _goToStartCb(self, unused_button):
self.seeker.seek(0)
self.app.gui.focusTimeline()
def _backCb(self, unused_button):
# Seek backwards one second
self.seeker.seekRelative(0 - Gst.SECOND)
self.app.gui.focusTimeline()
def _forwardCb(self, unused_button):
# Seek forward one second
self.seeker.seekRelative(Gst.SECOND)
self.app.gui.focusTimeline()
def _goToEndCb(self, unused_button):
end = self.app.project_manager.current_project.pipeline.getDuration()
self.seeker.seek(end)
self.app.gui.focusTimeline()
# Public methods for controlling playback
def undock(self, *unused_widget):
if not self.docked:
self.warning("The viewer is already undocked")
return
self.docked = False
self.settings.viewerDocked = False
self.remove(self.buttons_container)
position = None
if self.pipeline:
position = self.pipeline.getPosition()
self.pipeline.setState(Gst.State.NULL)
self.remove(self.target)
self.__createNewViewer()
self.external_vbox.pack_end(self.buttons_container, False, False, 0)
self.undock_button.hide()
self.fullscreen_button = Gtk.ToggleToolButton()
self.fullscreen_button.set_icon_name("view-fullscreen")
self.fullscreen_button.set_tooltip_text(
_("Show this window in fullscreen"))
self.buttons.pack_end(
self.fullscreen_button, expand=False, fill=False, padding=6)
self.fullscreen_button.show()
self.fullscreen_button.connect("toggled", self._toggleFullscreen)
self.external_window.show()
self.hide()
self.external_window.move(self.settings.viewerX, self.settings.viewerY)
self.external_window.resize(
self.settings.viewerWidth, self.settings.viewerHeight)
if self.pipeline:
self.pipeline.pause()
self.seeker.seek(position)
def dock(self):
if self.docked:
self.warning("The viewer is already docked")
return
self.docked = True
self.settings.viewerDocked = True
if self.pipeline:
position = self.pipeline.getPosition()
self.pipeline.setState(Gst.State.NULL)
self.external_vbox.remove(self.target)
self.__createNewViewer()
self.undock_button.show()
self.fullscreen_button.destroy()
self.external_vbox.remove(self.buttons_container)
self.pack_end(self.buttons_container, False, False, 0)
self.show()
self.external_window.hide()
if position:
self.pipeline.pause()
self.seeker.seek(position)
def _toggleFullscreen(self, widget):
if widget.get_active():
self.external_window.hide()
# GTK doesn't let us fullscreen utility windows
self.external_window.set_type_hint(Gdk.WindowTypeHint.NORMAL)
self.external_window.show()
self.external_window.fullscreen()
widget.set_tooltip_text(_("Exit fullscreen mode"))
else:
self.external_window.unfullscreen()
widget.set_tooltip_text(_("Show this window in fullscreen"))
self.external_window.hide()
self.external_window.set_type_hint(Gdk.WindowTypeHint.UTILITY)
self.external_window.show()
def _positionCb(self, unused_pipeline, position):
"""
If the timeline position changed, update the viewer UI widgets.
This is meant to be called either by the gobject timer when playing,
or by mainwindow's _timelineSeekCb when the timer is disabled.
"""
self.timecode_entry.setWidgetValue(position, False)
def clipTrimPreview(self, clip, position):
"""
While a clip is being trimmed, show a live preview of it.
"""
if not hasattr(clip, "get_uri") or isinstance(clip, GES.TitleClip) or clip.props.is_image:
self.log(
"%s is an image or has no URI, so not previewing trim" % clip)
return False
clip_uri = clip.props.uri
cur_time = time()
if self.pipeline == self.app.project_manager.current_project.pipeline:
self.debug("Creating temporary pipeline for clip %s, position %s",
clip_uri, format_ns(position))
self._oldTimelinePos = self.pipeline.getPosition(True)
self.pipeline.set_state(Gst.State.NULL)
self.setPipeline(AssetPipeline(clip))
self.__owning_pipeline = True
self._lastClipTrimTime = cur_time
if (cur_time - self._lastClipTrimTime) > 0.2 and self.pipeline.getState() == Gst.State.PAUSED:
# Do not seek more than once every 200 ms (for performance)
self.pipeline.simple_seek(position)
self._lastClipTrimTime = cur_time
def clipTrimPreviewFinished(self):
"""
After trimming a clip, reset the project pipeline into the viewer.
"""
if self.pipeline is not self.app.project_manager.current_project.pipeline:
self.pipeline.setState(Gst.State.NULL)
# Using pipeline.getPosition() here does not work because for some
# reason it's a bit off, that's why we need self._oldTimelinePos.
self.setPipeline(
self.app.project_manager.current_project.pipeline, self._oldTimelinePos)
self._oldTimelinePos = None
self.debug("Back to the project's pipeline")
def _pipelineStateChangedCb(self, unused_pipeline, state, old_state):
"""
When playback starts/stops, update the viewer widget,
play/pause button and (un)inhibit the screensaver.
This is meant to be called by mainwindow.
"""
if int(state) == int(Gst.State.PLAYING):
st = Gst.Structure.new_empty("play")
self.app.write_action(st)
self.playpause_button.setPause()
self.system.inhibitScreensaver(self.INHIBIT_REASON)
elif int(state) == int(Gst.State.PAUSED):
if old_state != int(Gst.State.PAUSED):
st = Gst.Structure.new_empty("pause")
if old_state == int(Gst.State.PLAYING):
st.set_value("playback_time", float(self.pipeline.getPosition()) /
Gst.SECOND)
self.app.write_action(st)
self.playpause_button.setPlay()
self.system.uninhibitScreensaver(self.INHIBIT_REASON)
else:
self.system.uninhibitScreensaver(self.INHIBIT_REASON)
class ViewerContainer(Gtk.VBox, Loggable):
"""
A wiget holding a viewer and the controls.
"""
__gtype_name__ = 'ViewerContainer'
__gsignals__ = {
"activate-playback-controls": (GObject.SignalFlags.RUN_LAST,
None, (GObject.TYPE_BOOLEAN,)),
}
INHIBIT_REASON = _("Currently playing")
def __init__(self, app, undock_action=None):
Gtk.VBox.__init__(self)
self.set_border_width(SPACING)
self.app = app
self.settings = app.settings
self.system = app.system
Loggable.__init__(self)
self.log("New ViewerContainer")
self.pipeline = None
self.docked = True
self.seeker = Seeker()
# Only used for restoring the pipeline position after a live clip trim preview:
self._oldTimelinePos = None
self._haveUI = False
self._createUi()
self.undock_action = undock_action
if undock_action:
self.undock_action.connect("activate", self._toggleDocked)
if not self.settings.viewerDocked:
self.undock()
@property
def target(self):
if self.docked:
return self.internal
else:
return self.external
def setPipeline(self, pipeline, position=None):
"""
Set the Viewer to the given Pipeline.
Properly switches the currently set action to that new Pipeline.
@param pipeline: The Pipeline to switch to.
@type pipeline: L{Pipeline}.
@param position: Optional position to seek to initially.
"""
self._disconnectFromPipeline()
self.debug("New pipeline: %r", pipeline)
self.pipeline = pipeline
self.pipeline.pause()
self.seeker.seek(position)
self.pipeline.connect("state-change", self._pipelineStateChangedCb)
self.pipeline.connect("position", self._positionCb)
self.pipeline.connect("duration-changed", self._durationChangedCb)
self._switch_output_window()
self._setUiActive()
def _disconnectFromPipeline(self):
self.debug("Previous pipeline: %r", self.pipeline)
if self.pipeline is None:
# silently return, there's nothing to disconnect from
return
self.pipeline.disconnect_by_func(self._pipelineStateChangedCb)
self.pipeline.disconnect_by_func(self._positionCb)
self.pipeline.disconnect_by_func(self._durationChangedCb)
self.pipeline = None
def _setUiActive(self, active=True):
self.debug("active %r", active)
self.set_sensitive(active)
if self._haveUI:
for item in [self.goToStart_button, self.back_button,
self.playpause_button, self.forward_button,
self.goToEnd_button, self.timecode_entry]:
item.set_sensitive(active)
if active:
self.emit("activate-playback-controls", True)
def _externalWindowDeleteCb(self, unused_window, unused_event):
self.dock()
return True
def _externalWindowConfigureCb(self, unused_window, event):
self.settings.viewerWidth = event.width
self.settings.viewerHeight = event.height
self.settings.viewerX = event.x
self.settings.viewerY = event.y
def _videoRealizedCb(self, unused_drawing_area, viewer):
if viewer == self.target:
self.log("Viewer widget realized: %s", viewer)
self._switch_output_window()
def _createUi(self):
""" Creates the Viewer GUI """
# Drawing area
self.internal = ViewerWidget(self.app.settings, realizedCb=self._videoRealizedCb)
# Transformation boxed DISABLED
# self.internal.init_transformation_events()
self.pack_start(self.internal, True, True, 0)
self.external_window = Gtk.Window()
vbox = Gtk.VBox()
vbox.set_spacing(SPACING)
self.external_window.add(vbox)
self.external = ViewerWidget(self.app.settings, realizedCb=self._videoRealizedCb)
vbox.pack_start(self.external, True, True, 0)
self.external_window.connect("delete-event", self._externalWindowDeleteCb)
self.external_window.connect("configure-event", self._externalWindowConfigureCb)
self.external_vbox = vbox
# Buttons/Controls
bbox = Gtk.HBox()
boxalign = Gtk.Alignment(xalign=0.5, yalign=0.5, xscale=0.0, yscale=0.0)
boxalign.add(bbox)
self.pack_start(boxalign, False, True, SPACING)
self.goToStart_button = Gtk.ToolButton()
self.goToStart_button.set_icon_name("media-skip-backward")
self.goToStart_button.connect("clicked", self._goToStartCb)
self.goToStart_button.set_tooltip_text(_("Go to the beginning of the timeline"))
self.goToStart_button.set_sensitive(False)
bbox.pack_start(self.goToStart_button, False, True, 0)
self.back_button = Gtk.ToolButton()
self.back_button.set_icon_name("media-seek-backward")
self.back_button.connect("clicked", self._backCb)
self.back_button.set_tooltip_text(_("Go back one second"))
self.back_button.set_sensitive(False)
bbox.pack_start(self.back_button, False, True, 0)
self.playpause_button = PlayPauseButton()
self.playpause_button.connect("play", self._playButtonCb)
bbox.pack_start(self.playpause_button, False, True, 0)
self.playpause_button.set_sensitive(False)
self.forward_button = Gtk.ToolButton()
self.forward_button.set_icon_name("media-seek-forward")
self.forward_button.connect("clicked", self._forwardCb)
self.forward_button.set_tooltip_text(_("Go forward one second"))
self.forward_button.set_sensitive(False)
bbox.pack_start(self.forward_button, False, True, 0)
self.goToEnd_button = Gtk.ToolButton()
self.goToEnd_button.set_icon_name("media-skip-forward")
self.goToEnd_button.connect("clicked", self._goToEndCb)
self.goToEnd_button.set_tooltip_text(_("Go to the end of the timeline"))
self.goToEnd_button.set_sensitive(False)
bbox.pack_start(self.goToEnd_button, False, True, 0)
# current time
self.timecode_entry = TimeWidget()
self.timecode_entry.setWidgetValue(0)
self.timecode_entry.set_tooltip_text(_('Enter a timecode or frame number\nand press "Enter" to go to that position'))
self.timecode_entry.connectActivateEvent(self._entryActivateCb)
bbox.pack_start(self.timecode_entry, False, 10, 0)
self._haveUI = True
# Identify widgets for AT-SPI, making our test suite easier to develop
# These will show up in sniff, accerciser, etc.
self.goToStart_button.get_accessible().set_name("goToStart_button")
self.back_button.get_accessible().set_name("back_button")
self.playpause_button.get_accessible().set_name("playpause_button")
self.forward_button.get_accessible().set_name("forward_button")
self.goToEnd_button.get_accessible().set_name("goToEnd_button")
self.timecode_entry.get_accessible().set_name("timecode_entry")
screen = Gdk.Screen.get_default()
height = screen.get_height()
if height >= 800:
# show the controls and force the aspect frame to have at least the same
# width (+110, which is a magic number to minimize dead padding).
bbox.show_all()
req = bbox.size_request()
width = req.width
height = req.height
width += 110
height = int(width / self.internal.props.ratio)
self.internal.set_size_request(width, height)
self.buttons = bbox
self.buttons_container = boxalign
self.show_all()
self.external_vbox.show_all()
def setDisplayAspectRatio(self, ratio):
self.debug("Setting aspect ratio to %f [%r]", float(ratio), ratio)
self.internal.setDisplayAspectRatio(ratio)
self.external.setDisplayAspectRatio(ratio)
def _entryActivateCb(self, unused_entry):
self._seekFromTimecodeWidget()
def _seekFromTimecodeWidget(self):
nanoseconds = self.timecode_entry.getWidgetValue()
self.seeker.seek(nanoseconds)
## active Timeline calllbacks
def _durationChangedCb(self, unused_pipeline, duration):
if duration == 0:
self._setUiActive(False)
else:
self._setUiActive(True)
## Control Gtk.Button callbacks
def setZoom(self, zoom):
"""
Zoom in or out of the transformation box canvas.
This is called by clipproperties.
"""
if self.target.box:
maxSize = self.target.area
width = int(float(maxSize.width) * zoom)
height = int(float(maxSize.height) * zoom)
area = ((maxSize.width - width) / 2,
(maxSize.height - height) / 2,
width, height)
self.sink.set_render_rectangle(*area)
self.target.box.update_size(area)
self.target.zoom = zoom
self.target.renderbox()
def _playButtonCb(self, unused_button, unused_playing):
self.app.current_project.pipeline.togglePlayback()
self.app.gui.focusTimeline()
def _goToStartCb(self, unused_button):
self.seeker.seek(0)
self.app.gui.focusTimeline()
def _backCb(self, unused_button):
# Seek backwards one second
self.seeker.seekRelative(0 - Gst.SECOND)
self.app.gui.focusTimeline()
def _forwardCb(self, unused_button):
# Seek forward one second
self.seeker.seekRelative(Gst.SECOND)
self.app.gui.focusTimeline()
def _goToEndCb(self, unused_button):
end = self.app.current_project.pipeline.getDuration()
self.seeker.seek(end)
self.app.gui.focusTimeline()
## public methods for controlling playback
def undock(self):
if not self.undock_action:
self.error("Cannot undock because undock_action is missing.")
return
if not self.docked:
return
self.docked = False
self.settings.viewerDocked = False
self.undock_action.set_label(_("Dock Viewer"))
self.remove(self.buttons_container)
self.external_vbox.pack_end(self.buttons_container, False, False, 0)
self.external_window.set_type_hint(Gdk.WindowTypeHint.UTILITY)
self.external_window.show()
self.fullscreen_button = Gtk.ToggleToolButton()
self.fullscreen_button.set_icon_name("view-fullscreen")
self.fullscreen_button.set_tooltip_text(_("Show this window in fullscreen"))
self.buttons.pack_end(self.fullscreen_button, expand=False, fill=False, padding=6)
self.fullscreen_button.show()
self.fullscreen_button.connect("toggled", self._toggleFullscreen)
# if we are playing, switch output immediately
if self.pipeline:
self._switch_output_window()
self.hide()
self.external_window.move(self.settings.viewerX, self.settings.viewerY)
self.external_window.resize(self.settings.viewerWidth, self.settings.viewerHeight)
def dock(self):
if not self.undock_action:
self.error("Cannot dock because undock_action is missing.")
return
if self.docked:
return
self.docked = True
self.settings.viewerDocked = True
self.undock_action.set_label(_("Undock Viewer"))
self.fullscreen_button.destroy()
self.external_vbox.remove(self.buttons_container)
self.pack_end(self.buttons_container, False, False, 0)
self.show()
# if we are playing, switch output immediately
if self.pipeline:
self._switch_output_window()
self.external_window.hide()
def _toggleDocked(self, unused_action):
if self.docked:
self.undock()
else:
self.dock()
def _toggleFullscreen(self, widget):
if widget.get_active():
self.external_window.hide()
# GTK doesn't let us fullscreen utility windows
self.external_window.set_type_hint(Gdk.WindowTypeHint.NORMAL)
self.external_window.show()
self.external_window.fullscreen()
widget.set_tooltip_text(_("Exit fullscreen mode"))
else:
self.external_window.unfullscreen()
widget.set_tooltip_text(_("Show this window in fullscreen"))
self.external_window.hide()
self.external_window.set_type_hint(Gdk.WindowTypeHint.UTILITY)
self.external_window.show()
def _positionCb(self, unused_pipeline, position):
"""
If the timeline position changed, update the viewer UI widgets.
This is meant to be called either by the gobject timer when playing,
or by mainwindow's _timelineSeekCb when the timer is disabled.
"""
self.timecode_entry.setWidgetValue(position, False)
def clipTrimPreview(self, tl_obj, position):
"""
While a clip is being trimmed, show a live preview of it.
"""
if isinstance(tl_obj, GES.TitleClip) or tl_obj.props.is_image or not hasattr(tl_obj, "get_uri"):
self.log("%s is an image or has no URI, so not previewing trim" % tl_obj)
return False
clip_uri = tl_obj.props.uri
cur_time = time()
if self.pipeline == self.app.current_project.pipeline:
self.debug("Creating temporary pipeline for clip %s, position %s",
clip_uri, format_ns(position))
self._oldTimelinePos = self.pipeline.getPosition()
self.setPipeline(AssetPipeline(tl_obj))
self._lastClipTrimTime = cur_time
if (cur_time - self._lastClipTrimTime) > 0.2 and self.pipeline.getState() == Gst.State.PAUSED:
# Do not seek more than once every 200 ms (for performance)
self.pipeline.simple_seek(position)
self._lastClipTrimTime = cur_time
def clipTrimPreviewFinished(self):
"""
After trimming a clip, reset the project pipeline into the viewer.
"""
if self.pipeline is not self.app.current_project.pipeline:
self.pipeline.setState(Gst.State.NULL)
# Using pipeline.getPosition() here does not work because for some
# reason it's a bit off, that's why we need self._oldTimelinePos.
self.setPipeline(self.app.current_project.pipeline, self._oldTimelinePos)
self.debug("Back to the project's pipeline")
def _pipelineStateChangedCb(self, unused_pipeline, state):
"""
When playback starts/stops, update the viewer widget,
play/pause button and (un)inhibit the screensaver.
This is meant to be called by mainwindow.
"""
if int(state) == int(Gst.State.PLAYING):
self.playpause_button.setPause()
self.system.inhibitScreensaver(self.INHIBIT_REASON)
elif int(state) == int(Gst.State.PAUSED):
self.playpause_button.setPlay()
self.system.uninhibitScreensaver(self.INHIBIT_REASON)
else:
self.system.uninhibitScreensaver(self.INHIBIT_REASON)
self.internal._currentStateCb(self.pipeline, state)
def _switch_output_window(self):
# Don't do anything if we don't have a pipeline
if self.pipeline is None:
return
if self.target.get_realized():
self.debug("Connecting the pipeline to the viewer's texture")
self.pipeline.connectWithViewer(self.target)
else:
# Show the widget and wait for the realized callback
self.log("Target is not realized, showing the widget")
self.target.show()
class ScaleRuler(gtk.DrawingArea, Zoomable, Loggable):
__gsignals__ = {
"expose-event": "override",
"button-press-event": "override",
"button-release-event": "override",
"motion-notify-event": "override",
"scroll-event": "override",
"seek": (gobject.SIGNAL_RUN_LAST, gobject.TYPE_NONE,
[gobject.TYPE_UINT64])
}
border = 0
min_tick_spacing = 3
scale = [0, 0, 0, 0.5, 1, 2, 5, 10, 15, 30, 60, 120, 300, 600, 3600]
subdivide = ((1, 1.0), (2, 0.5), (10, .25))
def __init__(self, instance, hadj):
gtk.DrawingArea.__init__(self)
Zoomable.__init__(self)
Loggable.__init__(self)
self.log("Creating new ScaleRuler")
self.app = instance
self._seeker = Seeker()
self.hadj = hadj
hadj.connect("value-changed", self._hadjValueChangedCb)
self.add_events(gtk.gdk.POINTER_MOTION_MASK |
gtk.gdk.BUTTON_PRESS_MASK | gtk.gdk.BUTTON_RELEASE_MASK)
self.pixbuf = None
# all values are in pixels
self.pixbuf_offset = 0
self.pixbuf_offset_painted = 0
# This is the number of width we allocate for the pixbuf
self.pixbuf_multiples = 4
self.position = 0 # In nanoseconds
self.pressed = False
self.need_update = True
self.min_frame_spacing = 5.0
self.frame_height = 5.0
self.frame_rate = gst.Fraction(1 / 1)
def _hadjValueChangedCb(self, hadj):
self.pixbuf_offset = self.hadj.get_value()
self.queue_draw()
## Zoomable interface override
def zoomChanged(self):
self.need_update = True
self.queue_draw()
## timeline position changed method
def timelinePositionChanged(self, value, unused_frame=None):
self.position = value
self.queue_draw()
## gtk.Widget overrides
def do_expose_event(self, event):
self.log("exposing ScaleRuler %s", list(event.area))
x, y, width, height = event.area
self.repaintIfNeeded(width, height)
# offset in pixbuf to paint
offset_to_paint = self.pixbuf_offset - self.pixbuf_offset_painted
self.window.draw_pixbuf(
self.style.fg_gc[gtk.STATE_NORMAL],
self.pixbuf,
int(offset_to_paint), 0,
x, y, width, height,
gtk.gdk.RGB_DITHER_NONE)
# draw the position
context = self.window.cairo_create()
self.drawPosition(context)
return False
def do_button_press_event(self, event):
self.debug("button pressed at x:%d", event.x)
self.pressed = True
position = self.pixelToNs(event.x + self.pixbuf_offset)
self._seeker.seek(position)
return True
def do_button_release_event(self, event):
self.debug("button released at x:%d", event.x)
self.pressed = False
# The distinction between the ruler and timeline canvas is theoretical.
# If the user interacts with the ruler, have the timeline steal focus
# from other widgets. This reactivates keyboard shortcuts for playback.
timeline = self.app.gui.timeline_ui
timeline._canvas.grab_focus(timeline._root_item)
return False
def do_motion_notify_event(self, event):
position = self.pixelToNs(event.x + self.pixbuf_offset)
if self.pressed:
self.debug("motion at event.x %d", event.x)
self._seeker.seek(position)
else:
human_time = beautify_length(position)
cur_frame = int(position / self.ns_per_frame) + 1
self.set_tooltip_text(human_time + "\n" + _("Frame #%d" % cur_frame))
return False
def do_scroll_event(self, event):
if event.state & gtk.gdk.CONTROL_MASK:
# Control + scroll = zoom
if event.direction == gtk.gdk.SCROLL_UP:
Zoomable.zoomIn()
self.app.gui.timeline_ui.zoomed_fitted = False
elif event.direction == gtk.gdk.SCROLL_DOWN:
Zoomable.zoomOut()
self.app.gui.timeline_ui.zoomed_fitted = False
else:
# No modifier key held down, just scroll
if event.direction == gtk.gdk.SCROLL_UP or\
event.direction == gtk.gdk.SCROLL_LEFT:
self.app.gui.timeline_ui.scroll_left()
elif event.direction == gtk.gdk.SCROLL_DOWN or\
event.direction == gtk.gdk.SCROLL_RIGHT:
self.app.gui.timeline_ui.scroll_right()
## Drawing methods
def repaintIfNeeded(self, width, height):
""" (re)create the buffered drawable for the Widget """
if self.pixbuf:
# The new offset starts before painted in pixbuf
if self.pixbuf_offset < self.pixbuf_offset_painted:
self.need_update = True
# The new offsets end after pixbuf we have
if self.pixbuf_offset + width > self.pixbuf_offset_painted + self.pixbuf.get_width():
self.need_update = True
else:
self.need_update = True
# We want to benefit from double-buffering (so as not to recreate the
# ruler graphics all the time) yet we don't want to allocate insanely
# big pixbufs (which would result in big memory usage, or even not being
# able to allocate such a big pixbuf).
#
# We therefore create a pixbuf with a width of 4 times the max viewable
# width (allocation.width)
if self.need_update:
self.log("Repainting the ruler")
if self.pixbuf:
del self.pixbuf
surface = cairo.ImageSurface(cairo.FORMAT_ARGB32, width * self.pixbuf_multiples, height)
self.pixbuf_offset_painted = self.pixbuf_offset
cr = cairo.Context(surface)
self.drawBackground(cr)
self.drawRuler(cr)
cr = None
self.pixbuf = gtk.gdk.pixbuf_new_from_data(surface.get_data(),
gtk.gdk.COLORSPACE_RGB, True, 8, surface.get_width(),
surface.get_height(), 4 * surface.get_width())
surface = None
self.need_update = False
def setProjectFrameRate(self, rate):
"""
Set the lowest scale based on project framerate
"""
self.frame_rate = rate
self.ns_per_frame = float(1 / self.frame_rate) * gst.SECOND
self.scale[0] = float(2 / rate)
self.scale[1] = float(5 / rate)
self.scale[2] = float(10 / rate)
def drawBackground(self, cr):
setCairoColor(cr, self.style.bg[gtk.STATE_NORMAL])
cr.rectangle(0, 0, cr.get_target().get_width(), cr.get_target().get_height())
cr.fill()
offset = int(self.nsToPixel(gst.CLOCK_TIME_NONE)) - self.pixbuf_offset
if offset > 0:
setCairoColor(cr, self.style.bg[gtk.STATE_ACTIVE])
cr.rectangle(0, 0, int(offset), cr.get_target().get_height())
cr.fill()
def drawRuler(self, cr):
cr.set_font_face(cairo.ToyFontFace("Cantarell"))
cr.set_font_size(15)
textwidth = cr.text_extents(time_to_string(0))[2]
for scale in self.scale:
spacing = Zoomable.zoomratio * scale
if spacing >= textwidth * 1.5:
break
offset = self.pixbuf_offset % spacing
zoomRatio = self.zoomratio
self.drawFrameBoundaries(cr)
self.drawTicks(cr, offset, spacing, scale)
self.drawTimes(cr, offset, spacing, scale)
def drawTick(self, cr, paintpos, height):
# We need to use 0.5 pixel offsets to get a sharp 1 px line in cairo
paintpos = int(paintpos - 0.5) + 0.5
height = int(cr.get_target().get_height() * (1 - height))
setCairoColor(cr, self.style.fg[gtk.STATE_NORMAL])
cr.set_line_width(1)
cr.move_to(paintpos, height)
cr.line_to(paintpos, cr.get_target().get_height())
cr.close_path()
cr.stroke()
def drawTicks(self, cr, offset, spacing, scale):
for subdivide, height in self.subdivide:
spc = spacing / float(subdivide)
if spc < self.min_tick_spacing:
break
paintpos = -spacing + 0.5
paintpos += spacing - offset
while paintpos < cr.get_target().get_width():
self.drawTick(cr, paintpos, height)
paintpos += spc
def drawTimes(self, cr, offset, spacing, scale):
# figure out what the optimal offset is
interval = long(gst.SECOND * scale)
seconds = self.pixelToNs(self.pixbuf_offset)
paintpos = float(self.border) + 2
if offset > 0:
seconds = seconds - (seconds % interval) + interval
paintpos += spacing - offset
while paintpos < cr.get_target().get_width():
if paintpos < self.nsToPixel(gst.CLOCK_TIME_NONE):
state = gtk.STATE_ACTIVE
else:
state = gtk.STATE_NORMAL
timevalue = time_to_string(long(seconds))
setCairoColor(cr, self.style.fg[state])
x_bearing, y_bearing = cr.text_extents("0")[:2]
cr.move_to(int(paintpos), 1 - y_bearing)
cr.show_text(timevalue)
paintpos += spacing
seconds += interval
def drawFrameBoundaries(self, cr):
frame_width = self.nsToPixel(self.ns_per_frame)
if frame_width >= self.min_frame_spacing:
offset = self.pixbuf_offset % frame_width
paintpos = -frame_width + 0.5
height = cr.get_target().get_height()
y = int(height - self.frame_height)
states = [gtk.STATE_ACTIVE, gtk.STATE_PRELIGHT]
paintpos += frame_width - offset
frame_num = int(paintpos // frame_width) % 2
while paintpos < cr.get_target().get_width():
setCairoColor(cr, self.style.bg[states[frame_num]])
cr.rectangle(paintpos, y, frame_width, height)
cr.fill()
frame_num = (frame_num + 1) % 2
paintpos += frame_width
def drawPosition(self, context):
# a simple RED line will do for now
xpos = self.nsToPixel(self.position) + self.border - self.pixbuf_offset
context.save()
context.set_line_width(1.5)
context.set_source_rgb(1.0, 0, 0)
context.move_to(xpos, 0)
context.line_to(xpos, context.get_target().get_height())
context.stroke()
context.restore()
