Update the UI with state changes and new ALSA cards as they come in.

[nageru] / mainwindow.cpp

diff --git a/mainwindow.cpp b/mainwindow.cpp
index a16d5bd159bfde3b37ac85833907737102a7754c..0fad15a785fe115f04c0f978bb3b002645bbaeae 100644 (file)
--- a/mainwindow.cpp
+++ b/mainwindow.cpp
@@ -235,6 +235,7 @@ void MainWindow::mixer_created(Mixer *mixer)
 
        setup_audio_miniview();
        setup_audio_expanded_view();
+       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);
@@ -841,3 +842,27 @@ void MainWindow::set_white_balance(int channel_number, int x, int y)
        global_mixer->set_wb(Mixer::OUTPUT_INPUT0 + channel_number, r, g, b);
        previews[channel_number]->display->updateGL();
 }
+
+void MainWindow::audio_state_changed()
+{
+       post_to_main_thread([this]{
+               InputMapping mapping = global_audio_mixer->get_input_mapping();
+               for (unsigned bus_index = 0; bus_index < mapping.buses.size(); ++bus_index) {
+                       const InputMapping::Bus &bus = mapping.buses[bus_index];
+                       string suffix;
+                       if (bus.device.type == InputSourceType::ALSA_INPUT) {
+                               ALSAPool::Device::State state = global_audio_mixer->get_alsa_card_state(bus.device.index);
+                               if (state == ALSAPool::Device::State::STARTING) {
+                                       suffix = " (busy)";
+                               } else if (state == ALSAPool::Device::State::DEAD) {
+                                       suffix = " (dead)";
+                               }
+                       }
+
+                       audio_miniviews[bus_index]->bus_desc_label->setFullText(
+                               QString::fromStdString(bus.name + suffix));
+                       audio_expanded_views[bus_index]->bus_desc_label->setFullText(
+                               QString::fromStdString(bus.name + suffix));
+               }
+       });
+}