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import gi
gi.require_version('Gtk', '3.0')
import logging
from gi.repository import GObject, Gtk, Gdk
BUTTON_SPACING = 10
class PyATEMSwitcherGui():
def __init__(self, config, switcher):
self.log = logging.getLogger('GUI')
self.config = config
cssProvider = Gtk.CssProvider()
cssProvider.load_from_path('style.css')
screen = Gdk.Screen.get_default()
styleContext = Gtk.StyleContext()
styleContext.add_provider_for_screen(
screen,
cssProvider,
Gtk.STYLE_PROVIDER_PRIORITY_USER,
)
self.window = Gtk.Window()
self.window.connect("destroy", self._exit)
self.window.set_wmclass('pygtk-atem-switcher', 'PyGTK-ATEM-Switcher')
self.switcher = switcher
self.switcher.on_connect(self._switcher_connected)
self.switcher.on_connect_attempt(self._switcher_connect_attempt)
self.switcher.on_disconnect(self._switcher_disconnected)
self.switcher.on_connect(self._switcher_state_changed)
self.switcher.on_receive(self._switcher_state_changed)
self.window.set_border_width(BUTTON_SPACING)
self.header = Gtk.HeaderBar()
self.header.props.title = 'PyATEMSwitcherGui: Idle'
self.window.set_titlebar(self.header)
self.box = None
self.buttons = {}
def _exit(self, *args, **kwargs):
self.switcher.disconnect()
Gtk.main_quit(*args, **kwargs)
def _button_clicked(self, button, name):
self.log.info(f'Button {name} was pressed')
for btn in self.buttons:
ctx = self.buttons[btn][0].get_style_context()
if btn == name:
self.log.debug(f'{btn}.add_class("selected")')
ctx.add_class('selected')
self.switcher.trans(self.buttons[btn][1])
else:
self.log.debug(f'{btn}.remove_class("selected")')
ctx.remove_class('selected')
def _switcher_connected(self, params):
switcher = params['switcher']
log = logging.getLogger('GUI connected')
log.debug(f'_switcher_connected({params})')
log.info(f'Connected to "{switcher.atemModel}" @ {switcher.ip}')
self.header.props.title = f'{switcher.atemModel} @ {switcher.ip}'
inputs = {}
for idx,i in enumerate(switcher.inputProperties):
if not i.shortName:
break
if i.shortName.lower() in ('-', 'empty', 'x'):
continue
if f'in_{i.shortName}' in self.buttons:
log.warning(f'ignoring duplicate button {i.shortName)')
continue
log.debug(f'Creating Button for {i.shortName} of type {i.externalPortType}: {i.longName}')
btn = Gtk.Button.new_with_label(
i.longName
)
btn.connect(
'clicked',
self._button_clicked,
f'in_{i.shortName}',
)
log.debug(f'Adding {i.shortName} to FlowBox')
self.buttons[f'in_{i.shortName}'] = (btn, idx)
inputs.setdefault(str(i.externalPortType), []).append(btn)
log.debug('Creating vertically stacked box as container')
self.box = Gtk.VBox(spacing=BUTTON_SPACING)
for input_type in ('hdmi', 'sdi', 'internal'):
if input_type not in inputs:
continue
for btn in inputs[input_type]:
self.box.pack_start(btn, True, True, 0)
log.debug('All buttons added, adding box to window')
self.window.add(self.box)
self.window.show_all()
self.log.debug('done')
def _switcher_connect_attempt(self, params):
self.header.props.title = 'PyATEMSwitcherGui: Connecting ...'
def _switcher_disconnected(self, params):
if self.box is not None:
self.window.remove(self.box)
self.box = None
self.buttons = {}
self.header.props.title = 'PyATEMSwitcherGui: Not connected'
def _switcher_state_changed(self, params):
cmd = params.get('cmd', 'PrgI')
if cmd in ('PrgI', 'PrvI'):
pgm = params['switcher'].programInput[0].videoSource
prv = params['switcher'].previewInput[0].videoSource
pgm_n = params['switcher'].inputProperties[pgm].shortName
prv_n = params['switcher'].inputProperties[prv].shortName
for btn in self.buttons:
ctx = self.buttons[btn][0].get_style_context()
if btn == f'in_{pgm_n}':
ctx.add_class('program')
else:
ctx.remove_class('program')
if btn == f'in_{prv_n}' and pgm != prv:
ctx.add_class('preview')
else:
ctx.remove_class('preview')
ctx.remove_class('selected')
elif cmd == 'TrPs' and params['switcher'].transition[0].position == 0:
for btn in self.buttons:
ctx = self.buttons[btn][0].get_style_context()
ctx.remove_class('preview')
def main_loop(self):
self.switcher.connect()
self.window.show_all()
Gtk.main()
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