Fix: UI/UX

src/state/audio.rs

@@ -113,7 +113,7 @@ pub struct AudioConfig {
     pub sample_rate: f32,
     pub host_name: String,
     pub sample_paths: Vec<PathBuf>,
-    pub sample_count: usize,
+    pub sample_counts: Vec<usize>,
     pub refresh_rate: RefreshRate,
     pub show_scope: bool,
     pub show_spectrum: bool,
@@ -140,7 +140,7 @@ impl Default for AudioConfig {
             sample_rate: 44100.0,
             host_name: String::new(),
             sample_paths: Vec::new(),
-            sample_count: 0,
+            sample_counts: Vec::new(),
             refresh_rate: RefreshRate::default(),
             show_scope: true,
             show_spectrum: true,
@@ -275,6 +275,7 @@ pub struct AudioSettings {
     pub input_devices: Vec<AudioDeviceInfo>,
     pub output_list: ListSelectState,
     pub input_list: ListSelectState,
+    pub sample_list: ListSelectState,
     pub restart_pending: bool,
     pub error: Option<String>,
     pub sample_registry: Option<std::sync::Arc<doux::SampleRegistry>>,
@@ -297,6 +298,10 @@ impl Default for AudioSettings {
                 cursor: 0,
                 scroll_offset: 0,
             },
+            sample_list: ListSelectState {
+                cursor: 0,
+                scroll_offset: 0,
+            },
             restart_pending: false,
             error: None,
             sample_registry: None,
@@ -321,6 +326,10 @@ impl AudioSettings {
                 cursor: 0,
                 scroll_offset: 0,
             },
+            sample_list: ListSelectState {
+                cursor: 0,
+                scroll_offset: 0,
+            },
             restart_pending: false,
             error: None,
             sample_registry: None,
@@ -429,14 +438,29 @@ impl AudioSettings {
         self.config.refresh_rate = self.config.refresh_rate.toggle();
     }
 
-    pub fn add_sample_path(&mut self, path: PathBuf) {
+    pub fn total_sample_count(&self) -> usize {
+        self.config.sample_counts.iter().sum()
+    }
+
+    pub fn add_sample_path(&mut self, path: PathBuf, count: usize) {
         if !self.config.sample_paths.contains(&path) {
             self.config.sample_paths.push(path);
+            self.config.sample_counts.push(count);
         }
     }
 
-    pub fn remove_last_sample_path(&mut self) {
-        self.config.sample_paths.pop();
+    pub fn remove_sample_path(&mut self, index: usize) {
+        if index < self.config.sample_paths.len() {
+            self.config.sample_paths.remove(index);
+            self.config.sample_counts.remove(index);
+            let len = self.config.sample_paths.len();
+            if len == 0 {
+                self.sample_list.cursor = 0;
+                self.sample_list.scroll_offset = 0;
+            } else if self.sample_list.cursor >= len {
+                self.sample_list.cursor = len - 1;
+            }
+        }
     }
 
     pub fn trigger_restart(&mut self) {