def __init__(self, logger=None, rgbmap=None, settings=None):
ImageViewCairo.ImageViewCairo.__init__(self,
logger=logger,
rgbmap=rgbmap,
settings=settings)
imgwin = gtk.DrawingArea()
imgwin.connect("expose_event", self.expose_event)
imgwin.connect("configure-event", self.configure_event)
imgwin.connect("size-request", self.size_request)
imgwin.set_events(gtk.gdk.EXPOSURE_MASK)
# prevents some flickering
imgwin.set_double_buffered(True)
imgwin.set_app_paintable(True)
# prevents extra redraws, because we manually redraw on a size
# change
imgwin.set_redraw_on_allocate(False)
self.imgwin = imgwin
self.imgwin.show_all()
# see reschedule_redraw() method
self._defer_task = GtkHelp.Timer()
self._defer_task.add_callback('expired',
lambda timer: self.delayed_redraw())
self.msgtask = GtkHelp.Timer()
self.msgtask.add_callback('expired',
lambda timer: self.onscreen_message(None))
def make_timer(self):
return GtkHelp.Timer()