Fix mouse wheel behavior on the two gain knobs, through an icky Qt hack.

diff --git a/mainwindow.cpp b/mainwindow.cpp
index 8196492ccfdb1560802e3be18010a39ee1c344cd..627d558609910c6f5c69900076d7fc2640bec741 100644 (file)
--- a/mainwindow.cpp
+++ b/mainwindow.cpp
@@ -139,12 +139,11 @@ void MainWindow::mixer_created(Mixer *mixer)
                global_mixer->set_locut_enabled(state == Qt::Checked);
        });
 
-       // 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_knob, &QAbstractSlider::valueChanged, this, &MainWindow::gain_staging_knob_changed);
        connect(ui->gainstaging_auto_checkbox, &QCheckBox::stateChanged, [this](int state){
                global_mixer->set_gain_staging_auto(state == Qt::Checked);
        });
-       connect(ui->makeup_gain_knob, &QAbstractSlider::sliderMoved, this, &MainWindow::final_makeup_gain_knob_changed);
+       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_mixer->set_final_makeup_gain_auto(state == Qt::Checked);
        });
@@ -287,11 +286,15 @@ void MainWindow::audio_level_callback(float level_lufs, float peak_db, float glo
                        ui->peak_display->setStyleSheet("");
                }
 
+               ui->gainstaging_knob->blockSignals(true);
                ui->gainstaging_knob->setValue(lrintf(gain_staging_db * 10.0f));
+               ui->gainstaging_knob->blockSignals(false);
                snprintf(buf, sizeof(buf), "%+.1f dB", gain_staging_db);
                ui->gainstaging_db_display->setText(buf);
 
+               ui->makeup_gain_knob->blockSignals(true);
                ui->makeup_gain_knob->setValue(lrintf(final_makeup_gain_db * 10.0f));
+               ui->makeup_gain_knob->blockSignals(false);
                snprintf(buf, sizeof(buf), "%+.1f dB", final_makeup_gain_db);
                ui->makeup_gain_db_display->setText(buf);
        });