Make it possible to override the level compressor with the gain staging knob.

[nageru] / mainwindow.cpp

diff --git a/mainwindow.cpp b/mainwindow.cpp
index fbfbecda05fbb3eb4afe92ce03766d3bb1ea9376..8cd0abdb2a9412dbc0fb7915341712be445ad7ce 100644 (file)
--- a/mainwindow.cpp
+++ b/mainwindow.cpp
@@ -109,8 +109,10 @@ void MainWindow::mixer_created(Mixer *mixer)
        connect(ui->locut_cutoff_knob, &QDial::valueChanged, this, &MainWindow::cutoff_knob_changed);
        cutoff_knob_changed(ui->locut_cutoff_knob->value());
 
+       // Not QDial::valueChanged, as we call setValue() all the time.
+       connect(ui->gainstaging_knob, &QAbstractSlider::sliderMoved, this, &MainWindow::gain_staging_knob_changed);
        connect(ui->gainstaging_auto_checkbox, &QCheckBox::stateChanged, [this](int state){
-               global_mixer->set_gainstaging_auto(state == Qt::Checked);
+               global_mixer->set_gain_staging_auto(state == Qt::Checked);
        });
 
        connect(ui->limiter_threshold_knob, &QDial::valueChanged, this, &MainWindow::limiter_threshold_knob_changed);
@@ -144,6 +146,16 @@ void MainWindow::exit_triggered()
        close();
 }
 
+void MainWindow::gain_staging_knob_changed(int value)
+{
+       ui->gainstaging_auto_checkbox->setCheckState(Qt::Unchecked);
+
+       float gain_db = value * 0.1f;
+       global_mixer->set_gain_staging_db(gain_db);
+
+       // The label will be updated by the audio level callback.
+}
+
 void MainWindow::cutoff_knob_changed(int value)
 {
        float octaves = value * 0.1f;
@@ -182,7 +194,7 @@ void MainWindow::reset_meters_button_clicked()
        ui->peak_display->setStyleSheet("");
 }
 
-void MainWindow::audio_level_callback(float level_lufs, float peak_db, float global_level_lufs, float range_low_lufs, float range_high_lufs, float auto_gain_staging_db)
+void MainWindow::audio_level_callback(float level_lufs, float peak_db, float global_level_lufs, float range_low_lufs, float range_high_lufs, float gain_staging_db)
 {
        timeval now;
        gettimeofday(&now, nullptr);
@@ -209,8 +221,8 @@ void MainWindow::audio_level_callback(float level_lufs, float peak_db, float glo
                        ui->peak_display->setStyleSheet("");
                }
 
-               ui->gainstaging_knob->setValue(lrintf(auto_gain_staging_db * 10.0f));
-               snprintf(buf, sizeof(buf), "%+.1f dB", auto_gain_staging_db);
+               ui->gainstaging_knob->setValue(lrintf(gain_staging_db * 10.0f));
+               snprintf(buf, sizeof(buf), "%+.1f dB", gain_staging_db);
                ui->gainstaging_db_display->setText(buf);
        });
 }