+ connect(shortcut, &QShortcut::activated, bind(&MainWindow::channel_clicked, this, i));
+
+ // Hook up the white balance button (irrelevant if invisible).
+ ui_display->wb_button->setVisible(mixer->get_supports_set_wb(output));
+ connect(ui_display->wb_button, &QPushButton::clicked, bind(&MainWindow::wb_button_clicked, this, i));
+ }
+
+ global_audio_mixer->set_state_changed_callback(bind(&MainWindow::audio_state_changed, this));
+
+ slave_knob(ui->locut_cutoff_knob, ui->locut_cutoff_knob_2);
+ slave_knob(ui->limiter_threshold_knob, ui->limiter_threshold_knob_2);
+ slave_knob(ui->makeup_gain_knob, ui->makeup_gain_knob_2);
+ slave_checkbox(ui->makeup_gain_auto_checkbox, ui->makeup_gain_auto_checkbox_2);
+ slave_checkbox(ui->limiter_enabled, ui->limiter_enabled_2);
+
+ reset_audio_mapping_ui();
+
+ // TODO: Fetch all of the values these for completeness,
+ // not just the enable knobs implied by flags.
+ ui->limiter_enabled->setChecked(global_audio_mixer->get_limiter_enabled());
+ ui->makeup_gain_auto_checkbox->setChecked(global_audio_mixer->get_final_makeup_gain_auto());
+
+ // Controls used only for simple audio fetch their state from the first bus.
+ constexpr unsigned simple_bus_index = 0;
+ if (global_audio_mixer->get_mapping_mode() == AudioMixer::MappingMode::SIMPLE) {
+ ui->locut_enabled->setChecked(global_audio_mixer->get_locut_enabled(simple_bus_index));
+ ui->gainstaging_knob->setValue(global_audio_mixer->get_gain_staging_db(simple_bus_index));
+ ui->gainstaging_auto_checkbox->setChecked(global_audio_mixer->get_gain_staging_auto(simple_bus_index));
+ ui->compressor_enabled->setChecked(global_audio_mixer->get_compressor_enabled(simple_bus_index));
+ ui->compressor_threshold_db_display->setText(
+ QString::fromStdString(format_db(mixer->get_audio_mixer()->get_compressor_threshold_dbfs(simple_bus_index), DB_WITH_SIGN)));
+ }
+ connect(ui->locut_enabled, &QCheckBox::stateChanged, [this](int state){
+ global_audio_mixer->set_locut_enabled(simple_bus_index, state == Qt::Checked);
+ midi_mapper.refresh_lights();
+ });
+ connect(ui->gainstaging_knob, &QAbstractSlider::valueChanged,
+ bind(&MainWindow::gain_staging_knob_changed, this, simple_bus_index, _1));
+ connect(ui->gainstaging_auto_checkbox, &QCheckBox::stateChanged, [this, simple_bus_index](int state){
+ global_audio_mixer->set_gain_staging_auto(simple_bus_index, state == Qt::Checked);
+ midi_mapper.refresh_lights();
+ });
+ connect(ui->compressor_threshold_knob, &QDial::valueChanged,
+ bind(&MainWindow::compressor_threshold_knob_changed, this, simple_bus_index, _1));
+ connect(ui->compressor_enabled, &QCheckBox::stateChanged, [this, simple_bus_index](int state){
+ global_audio_mixer->set_compressor_enabled(simple_bus_index, state == Qt::Checked);
+ midi_mapper.refresh_lights();
+ });
+
+ // Global mastering controls.
+ QString limiter_threshold_label(
+ QString::fromStdString(format_db(mixer->get_audio_mixer()->get_limiter_threshold_dbfs(), DB_WITH_SIGN)));
+ ui->limiter_threshold_db_display->setText(limiter_threshold_label);
+ ui->limiter_threshold_db_display_2->setText(limiter_threshold_label);
+
+ connect(ui->locut_cutoff_knob, &QDial::valueChanged, this, &MainWindow::cutoff_knob_changed);
+ cutoff_knob_changed(ui->locut_cutoff_knob->value());
+
+ connect(ui->makeup_gain_knob, &QAbstractSlider::valueChanged, this, &MainWindow::final_makeup_gain_knob_changed);
+ connect(ui->makeup_gain_auto_checkbox, &QCheckBox::stateChanged, [this](int state){
+ global_audio_mixer->set_final_makeup_gain_auto(state == Qt::Checked);
+ midi_mapper.refresh_lights();
+ });
+
+ connect(ui->limiter_threshold_knob, &QDial::valueChanged, this, &MainWindow::limiter_threshold_knob_changed);
+ connect(ui->limiter_enabled, &QCheckBox::stateChanged, [this](int state){
+ global_audio_mixer->set_limiter_enabled(state == Qt::Checked);
+ midi_mapper.refresh_lights();
+ });
+ connect(ui->reset_meters_button, &QPushButton::clicked, this, &MainWindow::reset_meters_button_clicked);
+ // Even though we have a reset button right next to it, the fact that
+ // the expanded audio view labels are clickable makes it natural to
+ // click this one as well.
+ connect(ui->peak_display, &ClickableLabel::clicked, this, &MainWindow::reset_meters_button_clicked);
+ mixer->get_audio_mixer()->set_audio_level_callback(bind(&MainWindow::audio_level_callback, this, _1, _2, _3, _4, _5, _6, _7, _8));
+
+ midi_mapper.refresh_highlights();
+ midi_mapper.refresh_lights();
+
+ struct sigaction act;
+ memset(&act, 0, sizeof(act));
+ act.sa_handler = schedule_cut_signal;
+ act.sa_flags = SA_RESTART;
+ sigaction(SIGHUP, &act, nullptr);
+
+ // Mostly for debugging. Don't override SIGINT, that's so evil if
+ // shutdown isn't instant.
+ memset(&act, 0, sizeof(act));
+ act.sa_handler = quit_signal;
+ act.sa_flags = SA_RESTART;
+ sigaction(SIGUSR1, &act, nullptr);
+}
+
+void MainWindow::reset_audio_mapping_ui()
+{
+ bool simple = (global_audio_mixer->get_mapping_mode() == AudioMixer::MappingMode::SIMPLE);
+
+ ui->simple_audio_mode->setChecked(simple);
+ ui->multichannel_audio_mode->setChecked(!simple);
+ ui->input_mapping_action->setEnabled(!simple);
+ ui->midi_mapping_action->setEnabled(!simple);
+
+ ui->locut_enabled->setVisible(simple);
+ ui->gainstaging_label->setVisible(simple);
+ ui->gainstaging_knob->setVisible(simple);
+ ui->gainstaging_db_display->setVisible(simple);
+ ui->gainstaging_auto_checkbox->setVisible(simple);
+ ui->compressor_threshold_label->setVisible(simple);
+ ui->compressor_threshold_knob->setVisible(simple);
+ ui->compressor_threshold_db_display->setVisible(simple);
+ ui->compressor_enabled->setVisible(simple);
+
+ setup_audio_miniview();
+ setup_audio_expanded_view();
+
+ if (simple) {
+ ui->audio_views->setCurrentIndex(0);
+ }
+ ui->compact_header->setVisible(!simple);
+
+ midi_mapper.refresh_highlights();
+ midi_mapper.refresh_lights();
+}
+
+void MainWindow::setup_audio_miniview()
+{
+ // Remove any existing channels.
+ for (QLayoutItem *item; (item = ui->faders->takeAt(0)) != nullptr; ) {
+ delete item->widget();
+ delete item;
+ }
+ audio_miniviews.clear();
+
+ if (global_audio_mixer->get_mapping_mode() == AudioMixer::MappingMode::SIMPLE) {
+ return;
+ }
+
+ // Set up brand new ones from the input mapping.
+ InputMapping mapping = global_audio_mixer->get_input_mapping();
+ audio_miniviews.resize(mapping.buses.size());
+ for (unsigned bus_index = 0; bus_index < mapping.buses.size(); ++bus_index) {
+ QWidget *channel = new QWidget(this);
+ Ui::AudioMiniView *ui_audio_miniview = new Ui::AudioMiniView;
+ ui_audio_miniview->setupUi(channel);
+ ui_audio_miniview->bus_desc_label->setFullText(
+ QString::fromStdString(mapping.buses[bus_index].name));
+ audio_miniviews[bus_index] = ui_audio_miniview;
+
+ // Set up the peak meter.
+ VUMeter *peak_meter = ui_audio_miniview->peak_meter;
+ peak_meter->set_min_level(-30.0f);
+ peak_meter->set_max_level(0.0f);
+ peak_meter->set_ref_level(0.0f);
+
+ ui_audio_miniview->fader->setDbValue(global_audio_mixer->get_fader_volume(bus_index));
+
+ ui->faders->addWidget(channel);
+
+ connect(ui_audio_miniview->fader, &NonLinearFader::dbValueChanged,
+ bind(&MainWindow::mini_fader_changed, this, bus_index, _1));
+ connect(ui_audio_miniview->peak_display_label, &ClickableLabel::clicked,
+ [bus_index]() {
+ global_audio_mixer->reset_peak(bus_index);
+ });
+ }
+}
+
+void MainWindow::setup_audio_expanded_view()
+{
+ // Remove any existing channels.
+ for (QLayoutItem *item; (item = ui->buses->takeAt(0)) != nullptr; ) {
+ delete item->widget();
+ delete item;
+ }
+ audio_expanded_views.clear();
+
+ if (global_audio_mixer->get_mapping_mode() == AudioMixer::MappingMode::SIMPLE) {
+ return;
+ }
+
+ // Set up brand new ones from the input mapping.
+ InputMapping mapping = global_audio_mixer->get_input_mapping();
+ audio_expanded_views.resize(mapping.buses.size());
+ for (unsigned bus_index = 0; bus_index < mapping.buses.size(); ++bus_index) {
+ QWidget *channel = new QWidget(this);
+ Ui::AudioExpandedView *ui_audio_expanded_view = new Ui::AudioExpandedView;
+ ui_audio_expanded_view->setupUi(channel);
+ ui_audio_expanded_view->bus_desc_label->setFullText(
+ QString::fromStdString(mapping.buses[bus_index].name));
+ audio_expanded_views[bus_index] = ui_audio_expanded_view;
+ update_eq_label(bus_index, EQ_BAND_TREBLE, global_audio_mixer->get_eq(bus_index, EQ_BAND_TREBLE));
+ update_eq_label(bus_index, EQ_BAND_MID, global_audio_mixer->get_eq(bus_index, EQ_BAND_MID));
+ update_eq_label(bus_index, EQ_BAND_BASS, global_audio_mixer->get_eq(bus_index, EQ_BAND_BASS));
+ ui_audio_expanded_view->fader->setDbValue(global_audio_mixer->get_fader_volume(bus_index));
+ ui_audio_expanded_view->mute_button->setChecked(global_audio_mixer->get_mute(bus_index) ? Qt::Checked : Qt::Unchecked);
+ connect(ui_audio_expanded_view->mute_button, &QPushButton::toggled,
+ bind(&MainWindow::mute_button_toggled, this, bus_index, _1));
+ ui->buses->addWidget(channel);
+
+ ui_audio_expanded_view->locut_enabled->setChecked(global_audio_mixer->get_locut_enabled(bus_index));
+ connect(ui_audio_expanded_view->locut_enabled, &QCheckBox::stateChanged, [this, bus_index](int state){
+ global_audio_mixer->set_locut_enabled(bus_index, state == Qt::Checked);
+ midi_mapper.refresh_lights();
+ });
+
+ connect(ui_audio_expanded_view->treble_knob, &QDial::valueChanged,
+ bind(&MainWindow::eq_knob_changed, this, bus_index, EQ_BAND_TREBLE, _1));
+ connect(ui_audio_expanded_view->mid_knob, &QDial::valueChanged,
+ bind(&MainWindow::eq_knob_changed, this, bus_index, EQ_BAND_MID, _1));
+ connect(ui_audio_expanded_view->bass_knob, &QDial::valueChanged,
+ bind(&MainWindow::eq_knob_changed, this, bus_index, EQ_BAND_BASS, _1));
+
+ ui_audio_expanded_view->gainstaging_knob->setValue(global_audio_mixer->get_gain_staging_db(bus_index));
+ ui_audio_expanded_view->gainstaging_auto_checkbox->setChecked(global_audio_mixer->get_gain_staging_auto(bus_index));
+ ui_audio_expanded_view->compressor_enabled->setChecked(global_audio_mixer->get_compressor_enabled(bus_index));
+
+ connect(ui_audio_expanded_view->gainstaging_knob, &QAbstractSlider::valueChanged, bind(&MainWindow::gain_staging_knob_changed, this, bus_index, _1));
+ connect(ui_audio_expanded_view->gainstaging_auto_checkbox, &QCheckBox::stateChanged, [this, bus_index](int state){
+ global_audio_mixer->set_gain_staging_auto(bus_index, state == Qt::Checked);
+ midi_mapper.refresh_lights();
+ });
+
+ connect(ui_audio_expanded_view->compressor_threshold_knob, &QDial::valueChanged, bind(&MainWindow::compressor_threshold_knob_changed, this, bus_index, _1));
+ connect(ui_audio_expanded_view->compressor_enabled, &QCheckBox::stateChanged, [this, bus_index](int state){
+ global_audio_mixer->set_compressor_enabled(bus_index, state == Qt::Checked);
+ midi_mapper.refresh_lights();
+ });
+
+ slave_fader(audio_miniviews[bus_index]->fader, ui_audio_expanded_view->fader);
+
+ // Set up the peak meter.
+ VUMeter *peak_meter = ui_audio_expanded_view->peak_meter;
+ peak_meter->set_min_level(-30.0f);
+ peak_meter->set_max_level(0.0f);
+ peak_meter->set_ref_level(0.0f);
+
+ connect(ui_audio_expanded_view->peak_display_label, &ClickableLabel::clicked,
+ [this, bus_index]() {
+ global_audio_mixer->reset_peak(bus_index);
+ midi_mapper.refresh_lights();
+ });