If the channel is mono anyway (same source for left and right), don't bother applying...

[nageru] / mainwindow.cpp

diff --git a/mainwindow.cpp b/mainwindow.cpp
index ead7a872422c9d676ff66fa210e7324dde7b3511..b20e3222cda213e1cc994f128996aa5a5cf90975 100644 (file)
--- a/mainwindow.cpp
+++ b/mainwindow.cpp
@@ -557,7 +557,7 @@ void MainWindow::setup_audio_expanded_view()
                ui_audio_expanded_view->bus_desc_label->setFullText(
                        QString::fromStdString(get_bus_desc_label(mapping.buses[bus_index])));
                audio_expanded_views[bus_index] = ui_audio_expanded_view;
-               update_stereo_label(bus_index, lrintf(100.0f * global_audio_mixer->get_stereo_width(bus_index)));
+               update_stereo_knob_and_label(bus_index, lrintf(100.0f * global_audio_mixer->get_stereo_width(bus_index)));
                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));
@@ -825,13 +825,32 @@ void MainWindow::eq_knob_changed(unsigned bus_index, EQBand band, int value)
        update_eq_label(bus_index, band, gain_db);
 }
 
-void MainWindow::update_stereo_label(unsigned bus_index, int stereo_width_percent)
+void MainWindow::update_stereo_knob_and_label(unsigned bus_index, int stereo_width_percent)
 {
-       char buf[256];
-       snprintf(buf, sizeof(buf), "Stereo: %d%%", stereo_width_percent);
+       Ui::AudioExpandedView *view = audio_expanded_views[bus_index];
+
+       if (global_audio_mixer->is_mono(bus_index)) {
+               view->stereo_width_knob->setEnabled(false);
+               view->stereo_width_label->setEnabled(false);
+       } else {
+               view->stereo_width_knob->setEnabled(true);
+               view->stereo_width_label->setEnabled(true);
+       }
+       view->stereo_width_knob->setValue(stereo_width_percent);
+       update_stereo_label(bus_index, stereo_width_percent);
+}
 
+void MainWindow::update_stereo_label(unsigned bus_index, int stereo_width_percent)
+{
        Ui::AudioExpandedView *view = audio_expanded_views[bus_index];
-       view->stereo_width_label->setText(buf);
+
+       if (global_audio_mixer->is_mono(bus_index)) {
+               view->stereo_width_label->setText("Mono");
+       } else {
+               char buf[256];
+               snprintf(buf, sizeof(buf), "Stereo: %d%%", stereo_width_percent);
+               view->stereo_width_label->setText(buf);
+       }
 }
 
 void MainWindow::update_eq_label(unsigned bus_index, EQBand band, float gain_db)