wip: p.43, e=22, almost 10kloc!

crates/tek_tui/src/tui_arranger_track.rs

@@ -1,5 +1,46 @@
 use crate::*;
 
+impl HasTracks<ArrangerTrack> for ArrangerView<Tui> {
+    fn tracks (&self) -> &Vec<ArrangerTrack> {
+        &self.tracks
+    }
+    fn tracks_mut (&mut self) -> &mut Vec<ArrangerTrack> {
+        &mut self.tracks
+    }
+}
+
+impl ArrangerTracksApi<ArrangerTrack> for ArrangerView<Tui> {
+    fn track_add (&mut self, name: Option<&str>, color: Option<ItemColor>)
+        -> Usually<&mut ArrangerTrack>
+    {
+        let name = name.map_or_else(||self.track_default_name(), |x|x.to_string());
+        let track = ArrangerTrack {
+            width:       name.len() + 2,
+            name:        Arc::new(name.into()),
+            color:       color.unwrap_or_else(||ItemColor::random()),
+            midi_ins:    vec![],
+            midi_outs:   vec![],
+            reset:       true,
+            recording:   false,
+            monitoring:  false,
+            overdub:     false,
+            play_phrase: None,
+            next_phrase: None,
+            notes_in:    RwLock::new([false;128]).into(),
+            notes_out:   RwLock::new([false;128]).into(),
+        };
+        self.tracks_mut().push(track);
+        let index = self.tracks().len() - 1;
+        Ok(&mut self.tracks_mut()[index])
+    }
+    fn track_del (&mut self, index: usize) {
+        self.tracks_mut().remove(index);
+        for scene in self.scenes_mut().iter_mut() {
+            scene.clips.remove(index);
+        }
+    }
+}
+
 #[derive(Debug)]
 pub struct ArrangerTrack {
     /// Name of track