- import logging
- from gi.repository import Gst, Gtk
- from lib.config import Config
- from lib.videodisplay import VideoDisplay
- import lib.connection as Connection
- class VideoPreviewsController(object):
- """ Displays Video-Previews and selection Buttons for them """
- def __init__(self, drawing_area, win, uibuilder):
- self.log = logging.getLogger('VideoPreviewsController')
- self.drawing_area = drawing_area
- self.win = win
- self.sources = Config.getlist('mix', 'sources')
- self.preview_players = {}
- self.previews = {}
- self.a_btns = {}
- self.b_btns = {}
- try:
- width = Config.getint('previews', 'width')
- self.log.debug('Preview-Width configured to %u', width)
- except:
- width = 320
- self.log.debug('Preview-Width selected as %u', width)
- try:
- height = Config.getint('previews', 'height')
- self.log.debug('Preview-Height configured to %u', height)
- except:
- height = width*9/16
- self.log.debug('Preview-Height calculated to %u', height)
- # Accelerators
- accelerators = Gtk.AccelGroup()
- win.add_accel_group(accelerators)
- group_a = None
- group_b = None
- for idx, source in enumerate(self.sources):
- self.log.info('Initializing Video Preview %s', source)
- preview = uibuilder.get_check_widget('widget_preview', clone=True)
- video = uibuilder.find_widget_recursive(preview, 'video')
- video.set_size_request(width, height)
- drawing_area.pack_start(preview, fill=False, expand=False, padding=0)
- player = VideoDisplay(video, port=13000 + idx)
- uibuilder.find_widget_recursive(preview, 'label').set_label(source)
- btn_a = uibuilder.find_widget_recursive(preview, 'btn_a')
- btn_b = uibuilder.find_widget_recursive(preview, 'btn_b')
- btn_a.set_name("%c %u" % ('a', idx))
- btn_b.set_name("%c %u" % ('b', idx))
- if not group_a:
- group_a = btn_a
- else:
- btn_a.join_group(group_a)
- if not group_b:
- group_b = btn_b
- else:
- btn_b.join_group(group_b)
- btn_a.connect('toggled', self.btn_toggled)
- btn_b.connect('toggled', self.btn_toggled)
- key, mod = Gtk.accelerator_parse('%u' % (idx+1))
- btn_a.add_accelerator('activate', accelerators, key, mod, Gtk.AccelFlags.VISIBLE)
- key, mod = Gtk.accelerator_parse('<Ctrl>%u' % (idx+1))
- btn_b.add_accelerator('activate', accelerators, key, mod, Gtk.AccelFlags.VISIBLE)
- self.preview_players[source] = player
- self.previews[source] = preview
- self.a_btns[source] = btn_a
- self.b_btns[source] = btn_b
- # connect event-handler and request initial state
- Connection.on('video_status', self.on_video_status)
- Connection.send('get_video')
- def btn_toggled(self, btn):
- if not btn.get_active():
- return
- btn_name = btn.get_name()
- self.log.debug('btn_toggled: %s', btn_name)
- channel, idx = btn_name.split(' ')[:2]
- source_name = self.sources[int(idx)]
- self.log.debug(self.sources)
- self.log.info('video-channel %s changed to %s', channel, source_name)
- Connection.send('set_video_'+channel, source_name)
- def on_video_status(self, source_a, source_b):
- self.log.info('on_video_status callback w/ sources: %s and %s', source_a, source_b)
- self.a_btns[source_a].set_active(True)
- self.b_btns[source_b].set_active(True)
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