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', width) except: height = width*9/16 self.log.debug('Preview-Height calculated to %u', width) # 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('%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)