class Application(Gtk.Application):
def __init__(self):
app_id = 'com.github.wwmm.pulseeffects'
app_flags = Gio.ApplicationFlags.HANDLES_COMMAND_LINE
GLib.set_application_name('PulseEffects')
GLib.setenv('PULSE_PROP_application.icon_name', 'pulseeffects', True)
GLib.setenv('PULSE_PROP_application.id',
'com.github.wwmm.pulseeffects', True)
GLib.setenv('PULSE_PROP_application.version', '3.2.3', True)
GLib.unix_signal_add(GLib.PRIORITY_DEFAULT, 2, self.quit) # sigint
Gtk.Application.__init__(self, application_id=app_id, flags=app_flags)
help_msg = _('Quit PulseEffects. Useful when running in service mode.')
self.add_main_option('quit', ord('q'), GLib.OptionFlags.NONE,
GLib.OptionArg.NONE, help_msg, None)
help_msg = _('Show available presets.')
self.add_main_option('presets', ord('p'), GLib.OptionFlags.NONE,
GLib.OptionArg.NONE, help_msg, None)
help_msg = _('Load a preset. Example: pulseeffects -l music')
self.add_main_option('load-preset', ord('l'), GLib.OptionFlags.NONE,
GLib.OptionArg.STRING, help_msg, None)
log_format = '%(asctime)s.%(msecs)d - %(name)s - %(levelname)s'
log_format = log_format + ' - %(message)s'
logging.basicConfig(format=log_format,
datefmt='%H:%M:%S',
level=logging.INFO)
self.log = logging.getLogger('PulseEffects')
self.log_tag = 'MAIN - '
if os.environ.get('PULSEEFFECTS_DEBUG'):
self.log.setLevel(logging.DEBUG)
self.log.debug(self.log_tag + 'debug logging enabled')
def do_startup(self):
Gtk.Application.do_startup(self)
self.ui_initialized = False
self.window_activated = False
self.running_as_service = False
self.module_path = os.path.dirname(__file__)
self.sink_list = []
self.source_list = []
self.gtk_settings = Gtk.Settings.get_default()
self.settings = Gio.Settings('com.github.wwmm.pulseeffects')
# creating user presets folder
self.user_config_dir = os.path.join(GLib.get_user_config_dir(),
'PulseEffects')
os.makedirs(self.user_config_dir, exist_ok=True)
# autostart file path
autostart_file_name = 'autostart/pulseeffects-service.desktop'
self.autostart_file = os.path.join(GLib.get_user_config_dir(),
autostart_file_name)
self.create_appmenu()
# custom css styles
self.apply_css_style('listbox.css')
icon_theme = Gtk.IconTheme.get_default()
icon_theme.append_search_path(self.module_path + '/ui')
# pulseaudio
self.pm = PulseManager()
self.pm.connect('new_default_sink', self.on_new_default_sink)
self.pm.connect('new_default_source', self.on_new_default_source)
self.pm.connect('sink_added', self.on_sink_added)
self.pm.connect('sink_removed', self.on_sink_removed)
self.pm.connect('source_added', self.on_source_added)
self.pm.connect('source_removed', self.on_source_removed)
flag = Gio.SettingsBindFlags.DEFAULT
self.settings.bind('use-default-sink', self.pm, 'use_default_sink',
flag)
self.settings.bind('use-default-source', self.pm, 'use_default_source',
flag)
# sink inputs and source outputs effects managers
self.sie = SinkInputEffects(self.pm)
self.soe = SourceOutputEffects(self.pm)
self.settings.bind('enable-all-apps', self.sie, 'switch_on_all_apps',
flag)
self.settings.bind('enable-all-apps', self.soe, 'switch_on_all_apps',
flag)
# output effects pipeline latency
self.settings.bind('buffer-out', self.sie.audio_src, 'buffer-time',
flag)
self.settings.bind('latency-out', self.sie.audio_src, 'latency-time',
flag)
self.settings.bind('buffer-out', self.sie.audio_sink, 'buffer-time',
flag)
self.settings.bind('latency-out', self.sie.audio_sink, 'latency-time',
flag)
# input effects pipeline latency
self.settings.bind('buffer-in', self.soe.audio_src, 'buffer-time',
flag)
self.settings.bind('latency-in', self.soe.audio_src, 'latency-time',
flag)
self.settings.bind('buffer-in', self.soe.audio_sink, 'buffer-time',
flag)
self.settings.bind('latency-in', self.soe.audio_sink, 'latency-time',
flag)
self.presets = PresetsManager(self)
if self.props.flags & Gio.ApplicationFlags.IS_SERVICE:
self.running_as_service = True
self.init_ui()
self.sie.post_messages(False)
self.soe.post_messages(False)
self.pm.find_sink_inputs()
self.pm.find_source_outputs()
self.log.info(self.log_tag + _('Running in background'))
self.hold()
def init_ui(self):
self.builder = Gtk.Builder.new_from_file(self.module_path +
'/ui/main_ui.glade')
self.builder.connect_signals(self)
self.window = self.builder.get_object('MainWindow')
self.window.set_application(self)
self.window.connect('destroy', self.on_window_destroy)
self.sie.init_ui()
self.soe.init_ui()
self.draw_spectrum = DrawSpectrum(self)
self.init_spectrum_widgets()
self.init_stack_widgets()
self.init_autostart_switch()
# Gsettings bindings
flag = Gio.SettingsBindFlags.DEFAULT
flag_invert_boolean = Gio.SettingsBindFlags.INVERT_BOOLEAN
enable_all_apps = self.builder.get_object('enable_all_apps')
theme_switch = self.builder.get_object('theme_switch')
use_default_sink = self.builder.get_object('use_default_sink')
use_default_source = self.builder.get_object('use_default_source')
self.ui_output_device = self.builder.get_object('output_device')
self.ui_input_device = self.builder.get_object('input_device')
buffer_out = self.builder.get_object('buffer_out')
latency_out = self.builder.get_object('latency_out')
buffer_in = self.builder.get_object('buffer_in')
latency_in = self.builder.get_object('latency_in')
self.settings.bind('use-dark-theme', theme_switch, 'active', flag)
self.settings.bind('use-dark-theme', self.gtk_settings,
'gtk_application_prefer_dark_theme', flag)
self.settings.bind('enable-all-apps', enable_all_apps, 'active', flag)
self.settings.bind('use-default-sink', use_default_sink, 'active',
flag)
self.settings.bind('use-default-sink', self.ui_output_device,
'sensitive', flag | flag_invert_boolean)
self.settings.bind('use-default-source', use_default_source, 'active',
flag)
self.settings.bind('use-default-source', self.ui_input_device,
'sensitive', flag | flag_invert_boolean)
self.settings.bind('buffer-out', buffer_out, 'value', flag)
self.settings.bind('latency-out', latency_out, 'value', flag)
self.settings.bind('buffer-in', buffer_in, 'value', flag)
self.settings.bind('latency-in', latency_in, 'value', flag)
# this connection is changed inside the stack switch handler
# depending on the selected child. The connection below is not
# permanent but just a default
self.spectrum_handler_id = self.sie.connect(
'new_spectrum', self.draw_spectrum.on_new_spectrum)
self.presets.load_menu()
self.ui_initialized = True
def on_window_destroy(self, window):
self.ui_initialized = False
self.window_activated = False
self.sie.there_is_window = False
self.soe.there_is_window = False
self.sie.disconnect_streams()
self.soe.disconnect_streams()
if self.running_as_service:
self.sie.post_messages(False)
self.soe.post_messages(False)
def do_activate(self):
if not self.ui_initialized:
self.init_ui()
self.window.present()
self.window_activated = True
self.sie.there_is_window = True
self.soe.there_is_window = True
if self.running_as_service:
# adding to ui devices found while in background
self.update_output_dev_combobox()
self.update_input_dev_combobox()
self.pm.find_sink_inputs()
self.pm.find_source_outputs()
self.pm.find_sinks()
self.pm.find_sources()
self.sie.post_messages(True)
self.soe.post_messages(True)
def do_command_line(self, command_line):
options = command_line.get_options_dict()
if options.contains('quit'):
self.quit()
elif options.contains('presets'):
self.presets.list_presets()
elif options.contains('load-preset'):
value = options.lookup_value('load-preset', None).unpack()
self.presets.load_preset(value)
else:
self.do_activate()
return Gtk.Application.do_command_line(self, command_line)
def do_shutdown(self):
Gtk.Application.do_shutdown(self)
self.sie.set_state('null')
self.soe.set_state('null')
self.sie.pe_is_closing = True
self.soe.pe_is_closing = True
self.pm.exit()
def create_appmenu(self):
menu = Gio.Menu()
menu.append('About', 'app.about')
menu.append('Quit', 'app.quit')
self.set_app_menu(menu)
about_action = Gio.SimpleAction.new('about', None)
about_action.connect('activate', self.onAbout)
self.add_action(about_action)
quit_action = Gio.SimpleAction.new('quit', None)
quit_action.connect('activate', lambda action, parameter: self.quit())
self.add_action(quit_action)
def init_stack_widgets(self):
self.stack = self.builder.get_object('stack')
self.stack.add_named(self.sie.ui_window, 'sink_inputs')
self.stack.child_set_property(self.sie.ui_window, 'icon-name',
'audio-speakers-symbolic')
self.stack.add_named(self.soe.ui_window, 'source_outputs')
self.stack.child_set_property(self.soe.ui_window, 'icon-name',
'audio-input-microphone-symbolic')
self.stack_current_child_name = 'sink_inputs'
self.stack.connect('notify::visible-child',
self.on_stack_visible_child_changed)
def on_stack_visible_child_changed(self, stack, visible_child):
name = stack.get_visible_child_name()
if name == 'sink_inputs':
if self.stack_current_child_name == 'source_outputs':
self.soe.disconnect(self.spectrum_handler_id)
self.spectrum_handler_id = self.sie.connect(
'new_spectrum', self.draw_spectrum.on_new_spectrum)
self.stack_current_child_name = 'sink_inputs'
elif name == 'source_outputs':
if self.stack_current_child_name == 'sink_inputs':
self.sie.disconnect(self.spectrum_handler_id)
self.spectrum_handler_id = self.soe.connect(
'new_spectrum', self.draw_spectrum.on_new_spectrum)
self.stack_current_child_name = 'source_outputs'
self.draw_spectrum.clear()
def init_autostart_switch(self):
switch = self.builder.get_object('enable_autostart')
if os.path.isfile(self.autostart_file):
switch.set_state(True)
else:
switch.set_state(False)
def on_enable_autostart_state_set(self, obj, state):
if state:
with open(self.autostart_file, 'w') as f:
f.write('[Desktop Entry]\n')
f.write('Name=PulseEffects\n')
f.write('Comment=PulseEffects Service\n')
f.write('Exec=pulseeffects --gapplication-service\n')
f.write('Icon=pulseeffects\n')
f.write('StartupNotify=false\n')
f.write('Terminal=false\n')
f.write('Type=Application\n')
f.close()
self.log.debug(self.log_tag +
'autostart_file created successfully')
else:
os.remove(self.autostart_file)
self.log.debug(self.log_tag +
'autostart_file removed successfully')
def init_spectrum_widgets(self):
show_spectrum_switch = self.builder.get_object('show_spectrum')
spectrum_n_points_obj = self.builder.get_object('spectrum_n_points')
show_spectrum = self.settings.get_value('show-spectrum').unpack()
spectrum_n_points = self.settings.get_value(
'spectrum-n-points').unpack()
show_spectrum_switch.set_active(show_spectrum)
spectrum_n_points_obj.set_value(spectrum_n_points)
self.sie.set_spectrum_n_points(spectrum_n_points)
self.soe.set_spectrum_n_points(spectrum_n_points)
if show_spectrum:
self.draw_spectrum.show()
else:
self.draw_spectrum.hide()
def on_show_spectrum_state_set(self, obj, state):
if state:
self.draw_spectrum.show()
self.sie.enable_spectrum(True)
self.soe.enable_spectrum(True)
else:
self.sie.enable_spectrum(False)
self.soe.enable_spectrum(False)
self.draw_spectrum.hide()
out = GLib.Variant('b', state)
self.settings.set_value('show-spectrum', out)
def on_spectrum_n_points_value_changed(self, obj):
value = obj.get_value()
out = GLib.Variant('i', value)
self.settings.set_value('spectrum-n-points', out)
self.sie.set_spectrum_n_points(value)
self.soe.set_spectrum_n_points(value)
def on_new_default_sink(self, obj, value):
if self.ui_initialized:
for s in self.sink_list:
name = s['name']
if name == value:
idx = self.sink_list.index(s)
self.ui_output_device.set_active(idx)
self.soe.set_webrtc_probe_src(name + '.monitor')
else:
self.sie.set_output_sink_name(value)
self.soe.set_webrtc_probe_src(value + '.monitor')
def on_new_default_source(self, obj, value):
if self.ui_initialized:
for s in self.source_list:
name = s['name']
if name == self.pm.default_source_name:
idx = self.source_list.index(s)
self.ui_input_device.set_active(idx)
else:
self.soe.set_source_monitor_name(value)
def update_output_dev_combobox(self):
active_text = self.ui_output_device.get_active_text()
use_default = self.settings.get_value('use-default-sink').unpack()
self.ui_output_device.remove_all()
if use_default:
for s in self.sink_list:
name = s['name']
self.ui_output_device.append_text(name)
if name == self.pm.default_sink_name:
idx = self.sink_list.index(s)
self.ui_output_device.set_active(idx)
else:
active_is_set = False
for s in self.sink_list:
name = s['name']
self.ui_output_device.append_text(name)
if not active_is_set:
if name == active_text:
idx = self.sink_list.index(s)
self.ui_output_device.set_active(idx)
active_is_set = True
elif name == self.pm.default_sink_name:
idx = self.sink_list.index(s)
self.ui_output_device.set_active(idx)
active_is_set = True
def update_input_dev_combobox(self):
active_text = self.ui_input_device.get_active_text()
use_default = self.settings.get_value('use-default-source').unpack()
self.ui_input_device.remove_all()
if use_default:
for s in self.source_list:
name = s['name']
self.ui_input_device.append_text(name)
if name == self.pm.default_source_name:
idx = self.source_list.index(s)
self.ui_input_device.set_active(idx)
else:
active_is_set = False
for s in self.source_list:
name = s['name']
self.ui_input_device.append_text(name)
if not active_is_set:
if name == active_text:
idx = self.source_list.index(s)
self.ui_input_device.set_active(idx)
active_is_set = True
elif name == self.pm.default_source_name:
idx = self.source_list.index(s)
self.ui_input_device.set_active(idx)
active_is_set = True
def on_sink_added(self, obj, sink):
add_to_list = True
for s in self.sink_list:
if s['idx'] == sink['idx']:
add_to_list = False
break
if add_to_list:
self.sink_list.append(sink)
self.log.debug(self.log_tag + 'added sink: ' + sink['name'])
if self.ui_initialized:
self.update_output_dev_combobox()
def on_sink_removed(self, obj, idx):
for s in self.sink_list:
if s['idx'] == idx:
name = s['name']
self.sink_list.remove(s)
self.log.debug(self.log_tag + 'removed sink: ' + name)
if self.ui_initialized:
self.update_output_dev_combobox()
break
def on_source_added(self, obj, source):
add_to_list = True
for s in self.source_list:
if s['idx'] == source['idx']:
add_to_list = False
break
if add_to_list:
self.source_list.append(source)
self.log.debug(self.log_tag + 'added source: ' + source['name'])
if self.ui_initialized:
self.update_input_dev_combobox()
def on_source_removed(self, obj, idx):
for s in self.source_list:
if s['idx'] == idx:
name = s['name']
self.source_list.remove(s)
self.log.debug(self.log_tag + 'removed source: ' + name)
if self.ui_initialized:
self.update_input_dev_combobox()
break
def on_use_default_sink_toggled(self, obj):
state = obj.get_active()
if state:
for s in self.sink_list:
name = s['name']
if name == self.pm.default_sink_name:
idx = self.sink_list.index(s)
self.ui_output_device.set_active(idx)
self.log.debug(self.log_tag + 'using default sink')
def on_use_default_source_toggled(self, obj):
state = obj.get_active()
if state:
for s in self.source_list:
name = s['name']
if name == self.pm.default_source_name:
idx = self.source_list.index(s)
self.ui_input_device.set_active(idx)
self.log.debug(self.log_tag + 'using default source')
def on_output_device_changed(self, obj):
name = obj.get_active_text()
for s in self.sink_list:
if s['name'] == name:
self.sie.set_output_sink_name(name)
self.soe.set_webrtc_probe_src(name + '.monitor')
self.log.debug(self.log_tag + 'output device changed: ' + name)
def on_input_device_changed(self, obj):
name = obj.get_active_text()
for s in self.source_list:
if s['name'] == name:
self.soe.set_source_monitor_name(name)
self.log.debug(self.log_tag + 'input device changed: ' + name)
def apply_css_style(self, css_file):
provider = Gtk.CssProvider()
css_file = Gio.File.new_for_path(self.module_path + '/ui/' + css_file)
provider.load_from_file(css_file)
screen = Gdk.Screen.get_default()
priority = Gtk.STYLE_PROVIDER_PRIORITY_APPLICATION
Gtk.StyleContext.add_provider_for_screen(screen, provider, priority)
def on_test_clicked(self, obj):
t = Test(self.pm)
t.run()
def on_reset_all_settings_clicked(self, obj):
self.settings.reset('buffer-in')
self.settings.reset('buffer-out')
self.settings.reset('latency-in')
self.settings.reset('latency-out')
self.settings.reset('show-spectrum')
self.settings.reset('spectrum-n-points')
self.settings.reset('use-dark-theme')
self.settings.reset('enable-all-apps')
self.settings.reset('use-default-sink')
self.settings.reset('use-default-source')
self.init_spectrum_widgets()
self.stack.set_visible_child(self.sie.ui_window)
self.sie.reset()
self.soe.reset()
def onAbout(self, action, parameter):
builder = Gtk.Builder()
builder.add_from_file(self.module_path + '/ui/about.glade')
dialog = builder.get_object('about_dialog')
dialog.set_transient_for(self.window)
dialog.run()
dialog.destroy()
class Application(Gtk.Application):
def __init__(self):
app_id = 'com.github.wwmm.pulseeffects'
Gtk.Application.__init__(self, application_id=app_id)
self.ui_initialized = False
self.spectrum_magnitudes = []
self.module_path = os.path.dirname(__file__)
self.settings = Gio.Settings('com.github.wwmm.pulseeffects')
self.pm = PulseManager()
self.pm.connect('sink_inputs_changed', self.on_sink_inputs_changed)
self.gst = GstEffects()
self.gst.set_output_sink_name(self.pm.default_sink_name)
self.gst.connect('new_level_before_limiter',
self.on_new_level_before_limiter)
self.gst.connect('new_level_after_limiter',
self.on_new_level_after_limiter)
self.gst.connect('new_autovolume', self.on_new_autovolume)
self.gst.connect('new_level_after_compressor',
self.on_new_level_after_compressor)
self.gst.connect('new_compressor_gain_reduction',
self.on_new_compressor_gain_reduction)
self.gst.connect('new_limiter_attenuation',
self.on_new_limiter_attenuation)
self.gst.connect('new_level_after_reverb',
self.on_new_level_after_reverb)
self.gst.connect('new_level_after_eq', self.on_new_level_after_eq)
self.gst.connect('new_spectrum', self.on_new_spectrum)
self.limiter_user = self.settings.get_value('limiter-user').unpack()
self.compressor_user = self.settings.get_value(
'compressor-user').unpack()
self.reverb_user = self.settings.get_value('reverb-user').unpack()
self.eq_band_user = self.settings.get_value('equalizer-user').unpack()
self.eq_preamp_user = self.settings.get_value(
'equalizer-preamp').unpack()
# creating user presets folder
self.user_config_dir = os.path.expanduser('~/.config/PulseEffects')
os.makedirs(self.user_config_dir, exist_ok=True)
def do_startup(self):
Gtk.Application.do_startup(self)
main_ui_builder = Gtk.Builder()
headerbar_builder = Gtk.Builder()
main_ui_builder.add_from_file(self.module_path + '/ui/main_ui.glade')
headerbar_builder.add_from_file(
self.module_path + '/ui/headerbar.glade')
main_ui_handlers = {
'on_MainWindow_delete_event': self.on_MainWindow_delete_event,
'on_limiter_input_gain_value_changed':
self.on_limiter_input_gain_value_changed,
'on_limiter_limit_value_changed':
self.on_limiter_limit_value_changed,
'on_limiter_release_time_value_changed':
self.on_limiter_release_time_value_changed,
'on_limiter_preset_toggled':
self.on_limiter_preset_toggled,
'on_compressor_measurement_type':
self.on_compressor_measurement_type,
'on_compressor_attack_time_value_changed':
self.on_compressor_attack_time_value_changed,
'on_compressor_release_time_value_changed':
self.on_compressor_release_time_value_changed,
'on_compressor_threshold_value_changed':
self.on_compressor_threshold_value_changed,
'on_compressor_ratio_value_changed':
self.on_compressor_ratio_value_changed,
'on_compressor_knee_value_changed':
self.on_compressor_knee_value_changed,
'on_compressor_makeup_value_changed':
self.on_compressor_makeup_value_changed,
'on_compressor_preset_toggled':
self.on_compressor_preset_toggled,
'on_reverb_room_size_value_changed':
self.on_reverb_room_size_value_changed,
'on_reverb_damping_value_changed':
self.on_reverb_damping_value_changed,
'on_reverb_width_value_changed':
self.on_reverb_width_value_changed,
'on_reverb_level_value_changed':
self.on_reverb_level_value_changed,
'on_reverb_preset_toggled': self.on_reverb_preset_toggled,
'on_eq_preamp_value_changed': self.on_eq_preamp_value_changed,
'on_eq_band0_value_changed': self.on_eq_band0_value_changed,
'on_eq_band1_value_changed': self.on_eq_band1_value_changed,
'on_eq_band2_value_changed': self.on_eq_band2_value_changed,
'on_eq_band3_value_changed': self.on_eq_band3_value_changed,
'on_eq_band4_value_changed': self.on_eq_band4_value_changed,
'on_eq_band5_value_changed': self.on_eq_band5_value_changed,
'on_eq_band6_value_changed': self.on_eq_band6_value_changed,
'on_eq_band7_value_changed': self.on_eq_band7_value_changed,
'on_eq_band8_value_changed': self.on_eq_band8_value_changed,
'on_eq_band9_value_changed': self.on_eq_band9_value_changed,
'on_eq_preset_toggled': self.on_eq_preset_toggled,
'on_spectrum_draw': self.on_spectrum_draw
}
headerbar_ui_handlers = {
'on_buffer_time_value_changed': self.on_buffer_time_value_changed,
'on_autovolume_enable_state_set':
self.on_autovolume_enable_state_set,
'on_save_user_preset_clicked': self.on_save_user_preset_clicked,
'on_load_user_preset_clicked': self.on_load_user_preset_clicked
}
main_ui_builder.connect_signals(main_ui_handlers)
headerbar_builder.connect_signals(headerbar_ui_handlers)
headerbar = headerbar_builder.get_object('headerbar')
self.window = main_ui_builder.get_object('MainWindow')
self.window.set_titlebar(headerbar)
self.window.set_application(self)
self.create_appmenu()
self.init_settings_menu(headerbar_builder)
self.init_limiter_menu(main_ui_builder)
self.init_compressor_menu(main_ui_builder)
self.init_reverb_menu(main_ui_builder)
self.init_equalizer_menu(main_ui_builder)
self.apps_box = main_ui_builder.get_object('apps_box')
self.spectrum = main_ui_builder.get_object('spectrum')
self.build_apps_list()
# buffer-time
buffer_time_obj = headerbar_builder.get_object('buffer_time')
buffer_time = self.settings.get_value('buffer-time').unpack()
buffer_time_obj.set_value(buffer_time)
# limiter
self.limiter_input_gain = main_ui_builder.get_object(
'limiter_input_gain')
self.limiter_limit = main_ui_builder.get_object(
'limiter_limit')
self.limiter_release_time = main_ui_builder.get_object(
'limiter_release_time')
self.limiter_attenuation_levelbar = main_ui_builder.get_object(
'limiter_attenuation_levelbar')
self.limiter_scale_input_gain = main_ui_builder.get_object(
'limiter_scale_input_gain')
self.limiter_scale_limit = main_ui_builder.get_object(
'limiter_scale_limit')
self.limiter_scale_release_time = main_ui_builder.get_object(
'limiter_scale_release_time')
self.limiter_attenuation_levelbar.add_offset_value(
'GTK_LEVEL_BAR_OFFSET_LOW', 20)
self.limiter_attenuation_levelbar.add_offset_value(
'GTK_LEVEL_BAR_OFFSET_HIGH', 50)
self.limiter_attenuation_levelbar.add_offset_value(
'GTK_LEVEL_BAR_OFFSET_FULL', 70)
self.limiter_level_before_left = main_ui_builder.get_object(
'limiter_level_before_left')
self.limiter_level_before_right = main_ui_builder.get_object(
'limiter_level_before_right')
self.limiter_level_after_left = main_ui_builder.get_object(
'limiter_level_after_left')
self.limiter_level_after_right = main_ui_builder.get_object(
'limiter_level_after_right')
self.apply_limiter_preset(self.limiter_user)
# autovolume
autovolume_state_obj = headerbar_builder.get_object('autovolume_state')
autovolume_state = self.settings.get_value('autovolume-state').unpack()
autovolume_state_obj.set_state(autovolume_state)
# compressor
self.compressor_rms = main_ui_builder.get_object('compressor_rms')
self.compressor_peak = main_ui_builder.get_object('compressor_peak')
self.compressor_attack = main_ui_builder.get_object(
'compressor_attack')
self.compressor_release = main_ui_builder.get_object(
'compressor_release')
self.compressor_threshold = main_ui_builder.get_object(
'compressor_threshold')
self.compressor_ratio = main_ui_builder.get_object(
'compressor_ratio')
self.compressor_knee = main_ui_builder.get_object(
'compressor_knee')
self.compressor_makeup = main_ui_builder.get_object(
'compressor_makeup')
self.compressor_level_after_left = main_ui_builder.get_object(
'compressor_level_after_left')
self.compressor_level_after_right = main_ui_builder.get_object(
'compressor_level_after_right')
self.compressor_gain_reduction_levelbar = main_ui_builder.get_object(
'compressor_gain_reduction_levelbar')
self.compressor_gain_reduction_levelbar.add_offset_value(
'GTK_LEVEL_BAR_OFFSET_LOW', 6)
self.compressor_gain_reduction_levelbar.add_offset_value(
'GTK_LEVEL_BAR_OFFSET_HIGH', 18)
self.compressor_gain_reduction_levelbar.add_offset_value(
'GTK_LEVEL_BAR_OFFSET_FULL', 24)
self.apply_compressor_preset(self.compressor_user)
# reverb
self.reverb_room_size = main_ui_builder.get_object('reverb_room_size')
self.reverb_damping = main_ui_builder.get_object('reverb_damping')
self.reverb_width = main_ui_builder.get_object('reverb_width')
self.reverb_level = main_ui_builder.get_object('reverb_level')
self.reverb_left_level = main_ui_builder.get_object(
'reverb_left_level')
self.reverb_right_level = main_ui_builder.get_object(
'reverb_right_level')
self.apply_reverb_preset(self.reverb_user)
# equalizer
self.eq_preamp = main_ui_builder.get_object('eq_preamp')
self.eq_band0 = main_ui_builder.get_object('eq_band0')
self.eq_band1 = main_ui_builder.get_object('eq_band1')
self.eq_band2 = main_ui_builder.get_object('eq_band2')
self.eq_band3 = main_ui_builder.get_object('eq_band3')
self.eq_band4 = main_ui_builder.get_object('eq_band4')
self.eq_band5 = main_ui_builder.get_object('eq_band5')
self.eq_band6 = main_ui_builder.get_object('eq_band6')
self.eq_band7 = main_ui_builder.get_object('eq_band7')
self.eq_band8 = main_ui_builder.get_object('eq_band8')
self.eq_band9 = main_ui_builder.get_object('eq_band9')
self.eq_left_level = main_ui_builder.get_object('eq_left_level')
self.eq_right_level = main_ui_builder.get_object('eq_right_level')
self.apply_eq_preset(self.eq_band_user)
self.eq_preamp.set_value(self.eq_preamp_user)
# now that all elements were initialized we set pipeline to ready
self.gst.set_state('ready')
def do_activate(self):
self.window.present()
self.ui_initialized = True
def on_MainWindow_delete_event(self, event, data):
self.gst.set_state('null')
self.pm.unload_sink()
self.quit()
def create_appmenu(self):
menu = Gio.Menu()
menu.append('About', 'app.about')
menu.append('Quit', 'app.quit')
self.set_app_menu(menu)
about_action = Gio.SimpleAction.new('about', None)
about_action.connect('activate', self.onAbout)
self.add_action(about_action)
quit_action = Gio.SimpleAction.new('quit', None)
quit_action.connect('activate', self.on_MainWindow_delete_event)
self.add_action(quit_action)
def init_settings_menu(self, builder):
button = builder.get_object('settings_popover_button')
menu = builder.get_object('settings_menu')
popover = Gtk.Popover.new(button)
popover.props.transitions_enabled = True
popover.add(menu)
def button_clicked(arg):
if popover.get_visible():
popover.hide()
else:
popover.show_all()
button.connect("clicked", button_clicked)
def init_limiter_menu(self, builder):
button = builder.get_object('limiter_popover')
menu = builder.get_object('limiter_menu')
limiter_no_selection = builder.get_object('limiter_no_selection')
popover = Gtk.Popover.new(button)
popover.props.transitions_enabled = True
popover.add(menu)
def button_clicked(arg):
if popover.get_visible():
popover.hide()
else:
popover.show_all()
limiter_no_selection.set_active(True)
limiter_no_selection.hide()
button.connect("clicked", button_clicked)
def init_compressor_menu(self, builder):
button = builder.get_object('compressor_popover')
menu = builder.get_object('compressor_menu')
compressor_no_selection = builder.get_object('compressor_no_selection')
popover = Gtk.Popover.new(button)
popover.props.transitions_enabled = True
popover.add(menu)
def button_clicked(arg):
if popover.get_visible():
popover.hide()
else:
popover.show_all()
compressor_no_selection.set_active(True)
compressor_no_selection.hide()
button.connect("clicked", button_clicked)
def init_reverb_menu(self, builder):
button = builder.get_object('reverb_popover')
menu = builder.get_object('reverb_menu')
reverb_no_selection = builder.get_object('reverb_no_selection')
popover = Gtk.Popover.new(button)
popover.props.transitions_enabled = True
popover.add(menu)
def button_clicked(arg):
if popover.get_visible():
popover.hide()
else:
popover.show_all()
reverb_no_selection.set_active(True)
reverb_no_selection.hide()
button.connect("clicked", button_clicked)
def init_equalizer_menu(self, builder):
button = builder.get_object('equalizer_popover')
menu = builder.get_object('equalizer_menu')
eq_no_selection = builder.get_object('eq_no_selection')
popover = Gtk.Popover.new(button)
popover.props.transitions_enabled = True
popover.add(menu)
def button_clicked(arg):
if popover.get_visible():
popover.hide()
else:
popover.show_all()
eq_no_selection.set_active(True)
eq_no_selection.hide()
button.connect("clicked", button_clicked)
def on_buffer_time_value_changed(self, obj):
value = obj.get_value()
out = GLib.Variant('i', value)
self.settings.set_value('buffer-time', out)
if self.ui_initialized:
self.gst.set_buffer_time(value * 1000)
else:
self.gst.init_buffer_time(value * 1000)
def on_autovolume_enable_state_set(self, obj, state):
self.gst.set_autovolume_state(state)
if state:
self.limiter_input_gain.set_value(-10)
self.limiter_limit.set_value(-10)
self.limiter_release_time.set_value(2.0)
self.limiter_scale_input_gain.set_sensitive(False)
self.limiter_scale_limit.set_sensitive(False)
self.limiter_scale_release_time.set_sensitive(False)
else:
self.limiter_input_gain.set_value(-10)
self.limiter_limit.set_value(0)
self.limiter_release_time.set_value(1.0)
self.limiter_scale_input_gain.set_sensitive(True)
self.limiter_scale_limit.set_sensitive(True)
self.limiter_scale_release_time.set_sensitive(True)
out = GLib.Variant('b', state)
self.settings.set_value('autovolume-state', out)
def build_apps_list(self):
children = self.apps_box.get_children()
for child in children:
self.apps_box.remove(child)
sink_inputs = self.pm.sink_inputs
for i in sink_inputs:
idx = i[0]
app_name = i[1]
media_name = i[2]
icon_name = i[3]
connected = i[4]
row = Gtk.ListBoxRow()
hbox = Gtk.Box(orientation=Gtk.Orientation.HORIZONTAL, spacing=2)
row.add(hbox)
# app icon
icon_size = Gtk.IconSize.BUTTON
icon = Gtk.Image.new_from_icon_name(icon_name, icon_size)
hbox.pack_start(icon, False, False, 0)
# label
label_text = '<b>' + app_name + '</b>' + ': ' + media_name
label = Gtk.Label(label_text, xalign=0)
label.set_use_markup(True)
hbox.pack_start(label, True, True, 0)
# switch
switch = Gtk.Switch()
switch.set_active(connected)
switch.set_name('switch_' + str(idx))
def move_sink_input(obj, state):
idx = int(obj.get_name().split('_')[1])
if state:
self.pm.grab_input(idx)
else:
self.pm.move_input_to_default_sink(idx)
switch.connect('state-set', move_sink_input)
hbox.pack_end(switch, False, False, 0)
self.apps_box.add(row)
self.apps_box.show_all()
def on_spectrum_draw(self, drawing_area, ctx):
ctx.paint()
if self.spectrum_magnitudes:
width = drawing_area.get_allocation().width
height = drawing_area.get_allocation().height
n_bars = len(self.spectrum_magnitudes)
style = drawing_area.get_style_context()
dx = width / n_bars
for n in range(n_bars):
mag = self.spectrum_magnitudes[n]
if mag > 0:
bar_height = self.spectrum_magnitudes[n] * 1.5
ctx.rectangle(n * dx, height - bar_height, dx, bar_height)
color = style.lookup_color('theme_selected_bg_color')[1]
ctx.set_source_rgba(color.red, color.green, color.blue, 1.0)
ctx.stroke()
def on_sink_inputs_changed(self, obj):
if self.ui_initialized:
self.build_apps_list()
if len(self.pm.sink_inputs) > 0:
self.gst.set_state('playing')
else:
self.gst.set_state('paused')
def on_new_level_before_limiter(self, obj, left, right):
if self.ui_initialized:
l_value = 10**(left / 20)
r_value = 10**(right / 20)
self.limiter_level_before_left.set_value(l_value)
self.limiter_level_before_right.set_value(r_value)
def on_new_level_after_limiter(self, obj, left, right):
if self.ui_initialized:
l_value = 10**(left / 20)
r_value = 10**(right / 20)
self.limiter_level_after_left.set_value(l_value)
self.limiter_level_after_right.set_value(r_value)
def on_new_autovolume(self, obj, gain):
if self.ui_initialized:
self.limiter_input_gain.set_value(gain)
def on_new_level_after_compressor(self, obj, left, right):
if self.ui_initialized:
l_value = 10**(left / 20)
r_value = 10**(right / 20)
self.compressor_level_after_left.set_value(l_value)
self.compressor_level_after_right.set_value(r_value)
def on_new_compressor_gain_reduction(self, obj, gain_reduction):
if self.ui_initialized:
value = abs(gain_reduction)
self.compressor_gain_reduction_levelbar.set_value(value)
def on_new_limiter_attenuation(self, obj, attenuation):
if self.ui_initialized:
self.limiter_attenuation_levelbar.set_value(attenuation)
def on_new_level_after_reverb(self, obj, left, right):
if self.ui_initialized:
l_value = 10**(left / 20)
r_value = 10**(right / 20)
self.reverb_left_level.set_value(l_value)
self.reverb_right_level.set_value(r_value)
def on_new_level_after_eq(self, obj, left, right):
if self.ui_initialized:
l_value = 10**(left / 20)
r_value = 10**(right / 20)
self.eq_left_level.set_value(l_value)
self.eq_right_level.set_value(r_value)
def on_new_spectrum(self, obj, magnitudes):
self.spectrum_magnitudes = magnitudes
self.spectrum.queue_draw()
def apply_limiter_preset(self, values):
self.limiter_input_gain.set_value(values[0])
self.limiter_limit.set_value(values[1])
self.limiter_release_time.set_value(values[2])
def on_limiter_preset_toggled(self, obj):
if obj.get_active():
obj_id = Gtk.Buildable.get_name(obj)
if obj_id == 'limiter_default':
value = self.settings.get_value('limiter-default')
self.apply_limiter_preset(value)
def save_limiter_user(self, idx, value):
self.limiter_user[idx] = value
out = GLib.Variant('ad', self.limiter_user)
self.settings.set_value('limiter-user', out)
def on_limiter_input_gain_value_changed(self, obj):
value = obj.get_value()
self.gst.set_limiter_input_gain(value)
self.save_limiter_user(0, value)
def on_limiter_limit_value_changed(self, obj):
value = obj.get_value()
self.gst.set_limiter_limit(value)
self.save_limiter_user(1, value)
def on_limiter_release_time_value_changed(self, obj):
value = obj.get_value()
self.gst.set_limiter_release_time(value)
self.save_limiter_user(2, value)
def apply_compressor_preset(self, values):
if values[0] == 0:
self.compressor_rms.set_active(True)
elif values[0] == 1:
self.compressor_peak.set_active(True)
self.compressor_attack.set_value(values[1])
self.compressor_release.set_value(values[2])
self.compressor_threshold.set_value(values[3])
self.compressor_ratio.set_value(values[4])
self.compressor_knee.set_value(values[5])
self.compressor_makeup.set_value(values[6])
def on_compressor_preset_toggled(self, obj):
if obj.get_active():
obj_id = Gtk.Buildable.get_name(obj)
if obj_id == 'compressor_preset_none':
value = self.settings.get_value('compressor-no-compression')
self.apply_compressor_preset(value)
def save_compressor_user(self, idx, value):
self.compressor_user[idx] = value
out = GLib.Variant('ad', self.compressor_user)
self.settings.set_value('compressor-user', out)
def on_compressor_measurement_type(self, obj):
if obj.get_active():
label = obj.get_label()
if label == 'rms':
self.gst.set_compressor_measurement_type(0)
self.save_compressor_user(0, 0)
elif label == 'peak':
self.gst.set_compressor_measurement_type(1)
self.save_compressor_user(0, 1)
def on_compressor_attack_time_value_changed(self, obj):
value = obj.get_value()
self.gst.set_compressor_attack(value)
self.save_compressor_user(1, value)
def on_compressor_release_time_value_changed(self, obj):
value = obj.get_value()
self.gst.set_compressor_release(value)
self.save_compressor_user(2, value)
def on_compressor_threshold_value_changed(self, obj):
value = obj.get_value()
self.gst.set_compressor_threshold(value)
self.save_compressor_user(3, value)
def on_compressor_ratio_value_changed(self, obj):
value = obj.get_value()
self.gst.set_compressor_ratio(value)
self.save_compressor_user(4, value)
def on_compressor_knee_value_changed(self, obj):
value = obj.get_value()
self.gst.set_compressor_knee(value)
self.save_compressor_user(5, value)
def on_compressor_makeup_value_changed(self, obj):
value = obj.get_value()
self.gst.set_compressor_makeup(value)
self.save_compressor_user(6, value)
def apply_reverb_preset(self, values):
self.reverb_room_size.set_value(values[0])
self.reverb_damping.set_value(values[1])
self.reverb_width.set_value(values[2])
self.reverb_level.set_value(values[3])
def on_reverb_preset_toggled(self, obj):
if obj.get_active():
obj_id = Gtk.Buildable.get_name(obj)
if obj_id == 'reverb_cathedral':
value = self.settings.get_value('reverb-cathedral')
self.apply_reverb_preset(value)
elif obj_id == 'reverb_no_reverberation':
value = self.settings.get_value('reverb-no-reverberation')
self.apply_reverb_preset(value)
elif obj_id == 'reverb_engine_room':
value = self.settings.get_value('reverb-engine-room')
self.apply_reverb_preset(value)
elif obj_id == 'reverb_small_room':
value = self.settings.get_value('reverb-small-room')
self.apply_reverb_preset(value)
def save_reverb_user(self, idx, value):
self.reverb_user[idx] = value
out = GLib.Variant('ad', self.reverb_user)
self.settings.set_value('reverb-user', out)
def on_reverb_room_size_value_changed(self, obj):
value = obj.get_value()
self.gst.set_reverb_room_size(value)
self.save_reverb_user(0, value)
def on_reverb_damping_value_changed(self, obj):
value = obj.get_value()
self.gst.set_reverb_damping(value)
self.save_reverb_user(1, value)
def on_reverb_width_value_changed(self, obj):
value = obj.get_value()
self.gst.set_reverb_width(value)
self.save_reverb_user(2, value)
def on_reverb_level_value_changed(self, obj):
value = obj.get_value()
self.gst.set_reverb_level(value)
self.save_reverb_user(3, value)
def apply_eq_preset(self, values):
self.eq_band0.set_value(values[0])
self.eq_band1.set_value(values[1])
self.eq_band2.set_value(values[2])
self.eq_band3.set_value(values[3])
self.eq_band4.set_value(values[4])
self.eq_band5.set_value(values[5])
self.eq_band6.set_value(values[6])
self.eq_band7.set_value(values[7])
self.eq_band8.set_value(values[8])
self.eq_band9.set_value(values[9])
def on_eq_preset_toggled(self, obj):
if obj.get_active():
obj_id = Gtk.Buildable.get_name(obj)
if obj_id == 'eq_ballad':
value = self.settings.get_value('equalizer-ballad')
self.apply_eq_preset(value)
elif obj_id == 'eq_classic':
value = self.settings.get_value('equalizer-classic')
self.apply_eq_preset(value)
elif obj_id == 'eq_club':
value = self.settings.get_value('equalizer-club')
self.apply_eq_preset(value)
elif obj_id == 'eq_dance':
value = self.settings.get_value('equalizer-dance')
self.apply_eq_preset(value)
elif obj_id == 'eq_equal_loudness_20':
value = self.settings.get_value('equalizer-equal-loudness-20')
self.apply_eq_preset(value)
elif obj_id == 'eq_equal_loudness_40':
value = self.settings.get_value('equalizer-equal-loudness-40')
self.apply_eq_preset(value)
elif obj_id == 'eq_equal_loudness_60':
value = self.settings.get_value('equalizer-equal-loudness-60')
self.apply_eq_preset(value)
elif obj_id == 'eq_equal_loudness_80':
value = self.settings.get_value('equalizer-equal-loudness-80')
self.apply_eq_preset(value)
elif obj_id == 'eq_equal_loudness_100':
value = self.settings.get_value('equalizer-equal-loudness-100')
self.apply_eq_preset(value)
elif obj_id == 'eq_flat':
value = self.settings.get_value('equalizer-flat')
self.apply_eq_preset(value)
elif obj_id == 'eq_default':
value = self.settings.get_value('equalizer-default')
self.apply_eq_preset(value)
elif obj_id == 'eq_more_bass_and_treble':
value = self.settings.get_value(
'equalizer-more-bass-and-treble')
self.apply_eq_preset(value)
elif obj_id == 'eq_party':
value = self.settings.get_value('equalizer-party')
self.apply_eq_preset(value)
elif obj_id == 'eq_pop':
value = self.settings.get_value('equalizer-pop')
self.apply_eq_preset(value)
elif obj_id == 'eq_reggae':
value = self.settings.get_value('equalizer-reggae')
self.apply_eq_preset(value)
elif obj_id == 'eq_rock':
value = self.settings.get_value('equalizer-rock')
self.apply_eq_preset(value)
elif obj_id == 'eq_ska':
value = self.settings.get_value('equalizer-ska')
self.apply_eq_preset(value)
elif obj_id == 'eq_soft':
value = self.settings.get_value('equalizer-soft')
self.apply_eq_preset(value)
elif obj_id == 'eq_techno':
value = self.settings.get_value('equalizer-techno')
self.apply_eq_preset(value)
def save_eq_user(self, idx, value):
self.eq_band_user[idx] = value
out = GLib.Variant('ad', self.eq_band_user)
self.settings.set_value('equalizer-user', out)
def on_eq_preamp_value_changed(self, obj):
value_db = obj.get_value()
value_linear = 10**(value_db / 20)
self.gst.set_eq_preamp(value_linear)
out = GLib.Variant('d', value_db)
self.settings.set_value('equalizer-preamp', out)
def on_eq_band0_value_changed(self, obj):
value = obj.get_value()
self.gst.set_eq_band0(value)
self.save_eq_user(0, value)
def on_eq_band1_value_changed(self, obj):
value = obj.get_value()
self.gst.set_eq_band1(value)
self.save_eq_user(1, value)
def on_eq_band2_value_changed(self, obj):
value = obj.get_value()
self.gst.set_eq_band2(value)
self.save_eq_user(2, value)
def on_eq_band3_value_changed(self, obj):
value = obj.get_value()
self.gst.set_eq_band3(value)
self.save_eq_user(3, value)
def on_eq_band4_value_changed(self, obj):
value = obj.get_value()
self.gst.set_eq_band4(value)
self.save_eq_user(4, value)
def on_eq_band5_value_changed(self, obj):
value = obj.get_value()
self.gst.set_eq_band5(value)
self.save_eq_user(5, value)
def on_eq_band6_value_changed(self, obj):
value = obj.get_value()
self.gst.set_eq_band6(value)
self.save_eq_user(6, value)
def on_eq_band7_value_changed(self, obj):
value = obj.get_value()
self.gst.set_eq_band7(value)
self.save_eq_user(7, value)
def on_eq_band8_value_changed(self, obj):
value = obj.get_value()
self.gst.set_eq_band8(value)
self.save_eq_user(8, value)
def on_eq_band9_value_changed(self, obj):
value = obj.get_value()
self.gst.set_eq_band9(value)
self.save_eq_user(9, value)
def add_file_filter(self, dialog):
file_filter = Gtk.FileFilter()
file_filter.set_name("preset")
file_filter.add_mime_type("text/plain")
dialog.add_filter(file_filter)
def on_save_user_preset_clicked(self, obj):
dialog = Gtk.FileChooserDialog('', self.window,
Gtk.FileChooserAction.SAVE,
(Gtk.STOCK_CANCEL,
Gtk.ResponseType.CANCEL,
Gtk.STOCK_SAVE, Gtk.ResponseType.OK))
dialog.set_current_folder(self.user_config_dir)
dialog.set_current_name('user.preset')
self.add_file_filter(dialog)
response = dialog.run()
if response == Gtk.ResponseType.OK:
path = dialog.get_filename()
if not path.endswith(".preset"):
path += ".preset"
output = open(path, 'w')
config = configparser.ConfigParser()
limiter = self.settings.get_value('limiter-user')
config['limiter'] = {'input gain': str(limiter[0]),
'limit': str(limiter[1]),
'release time': str(limiter[2])}
compressor = self.settings.get_value('compressor-user')
config['compressor'] = {'rms-peak': str(compressor[0]),
'attack': str(compressor[1]),
'release': str(compressor[2]),
'threshold': str(compressor[3]),
'ratio': str(compressor[4]),
'knee': str(compressor[5]),
'makeup': str(compressor[6])}
reverb = self.settings.get_value('reverb-user')
config['reverb'] = {'room size': str(reverb[0]),
'damping': str(reverb[1]),
'width': str(reverb[2]),
'level': str(reverb[3])}
equalizer_preamp = self.settings.get_value('equalizer-preamp')
equalizer = self.settings.get_value('equalizer-user')
config['equalizer'] = {'preamp': str(equalizer_preamp),
'band0': str(equalizer[0]),
'band1': str(equalizer[1]),
'band2': str(equalizer[2]),
'band3': str(equalizer[3]),
'band4': str(equalizer[4]),
'band5': str(equalizer[5]),
'band6': str(equalizer[6]),
'band7': str(equalizer[7]),
'band8': str(equalizer[8]),
'band9': str(equalizer[9])}
config.write(output)
dialog.destroy()
def on_load_user_preset_clicked(self, obj):
dialog = Gtk.FileChooserDialog('', self.window,
Gtk.FileChooserAction.OPEN,
(Gtk.STOCK_CANCEL,
Gtk.ResponseType.CANCEL,
Gtk.STOCK_OPEN, Gtk.ResponseType.OK))
dialog.set_current_folder(self.user_config_dir)
self.add_file_filter(dialog)
response = dialog.run()
if response == Gtk.ResponseType.OK:
path = dialog.get_filename()
config = configparser.ConfigParser()
config.read(path)
limiter = dict(config['limiter']).values()
limiter = [float(v) for v in limiter]
self.apply_limiter_preset(limiter)
compressor = dict(config['compressor']).values()
compressor = [float(v) for v in compressor]
self.apply_compressor_preset(compressor)
reverb = dict(config['reverb']).values()
reverb = [float(v) for v in reverb]
self.apply_reverb_preset(reverb)
equalizer = list(dict(config['equalizer']).values())
if len(equalizer) == 11: # one day this check will be removed...
equalizer_preamp = float(equalizer.pop(0))
self.eq_preamp.set_value(equalizer_preamp)
equalizer = [float(v) for v in equalizer]
self.apply_eq_preset(equalizer)
dialog.destroy()
def onAbout(self, action, parameter):
builder = Gtk.Builder()
builder.add_from_file(self.module_path + '/ui/about.glade')
dialog = builder.get_object('about_dialog')
dialog.set_transient_for(self.window)
dialog.show()