Feat: fixing stderr catching and scope not drawing completely

src/bin/desktop/main.rs

@@ -158,6 +158,7 @@ struct CagireDesktop {
     _stream: Option<cpal::Stream>,
     _analysis_handle: Option<AnalysisHandle>,
     midi_rx: Receiver<MidiCommand>,
+    stream_error_rx: crossbeam_channel::Receiver<String>,
     current_font: FontChoice,
     zoom_factor: f32,
     fullscreen: bool,
@@ -201,6 +202,7 @@ impl CagireDesktop {
             _stream: b.stream,
             _analysis_handle: b.analysis_handle,
             midi_rx: b.midi_rx,
+            stream_error_rx: b.stream_error_rx,
             current_font,
             zoom_factor,
             fullscreen: false,
@@ -235,6 +237,9 @@ impl CagireDesktop {
             max_voices: self.app.audio.config.max_voices,
         };
 
+        let (new_error_tx, new_error_rx) = crossbeam_channel::bounded(16);
+        self.stream_error_rx = new_error_rx;
+
         let mut restart_samples = Vec::new();
         for path in &self.app.audio.config.sample_paths {
             let index = doux::sampling::scan_samples_dir(path);
@@ -257,6 +262,7 @@ impl CagireDesktop {
             Arc::clone(&self.metrics),
             restart_samples,
             Arc::clone(&self.audio_sample_pos),
+            new_error_tx,
         ) {
             Ok((new_stream, info, new_analysis, registry)) => {
                 self._stream = Some(new_stream);
@@ -350,6 +356,11 @@ impl CagireDesktop {
 impl eframe::App for CagireDesktop {
     fn update(&mut self, ctx: &egui::Context, _frame: &mut eframe::Frame) {
         self.handle_audio_restart();
+
+        while let Ok(err) = self.stream_error_rx.try_recv() {
+            self.app.ui.flash(&err, 3000, cagire::state::FlashKind::Error);
+        }
+
         self.update_metrics();
 
         ctx.input(|i| {