wip: reenable standalone sequencer

Justfile

@@ -12,3 +12,5 @@ fpush:
   git push -fu origin main
 arranger:
   cargo run --bin tek_arranger
+sequencer:
+  cargo run --bin tek_sequencer

crates/tek_sequencer/src/arranger.rs

@@ -457,16 +457,7 @@ impl Scene {
     }
     /// Returns the pulse length of the longest phrase in the scene
     pub fn pulses <E: Engine> (&self, tracks: &[ArrangementTrack<E>]) -> usize {
-        self.clips.iter().enumerate()
-            .filter_map(|(i, c)|c
-                .map(|c|tracks
-                    .get(i)
-                    .map(|track|track
-                        .phrases
-                        .get(c))))
-            .filter_map(|p|p)
-            .filter_map(|p|p)
-            .fold(0, |a, p|a.max(p.read().unwrap().length))
+        self.clips.iter().fold(0, |a, p|a.max(p.as_ref().map(|q|q.read().unwrap().length).unwrap_or(0)))
     }
     /// Returns true if all phrases in the scene are currently playing
     pub fn is_playing <E: Engine> (&self, tracks: &[ArrangementTrack<E>]) -> bool {

crates/tek_sequencer/src/arranger_cli.rs

@@ -36,12 +36,12 @@ impl ArrangerCli {
             *arrangement.name.write().unwrap() = name.clone();
         }
         for _ in 0..self.tracks {
-            let track = arrangement.track_add(None)?;
-            for _ in 0..self.scenes {
-                track.phrases.push(
-                    Arc::new(RwLock::new(Phrase::new("", true, PPQ * 4, None)))
-                );
-            }
+            //let track = arrangement.track_add(None)?;
+            //for _ in 0..self.scenes {
+                //track.phrases.push(
+                    //Arc::new(RwLock::new(Phrase::new("", true, PPQ * 4, None)))
+                //);
+            //}
         }
         for _ in 0..self.scenes {
             let _scene = arrangement.scene_add(None)?;

crates/tek_sequencer/src/arranger_tui.rs

@@ -25,6 +25,21 @@ impl Content for Arranger<Tui> {
         })
     }
 }
+/// Focusable items in standalone arranger.
+impl Focus<3, Tui> for Arranger<Tui> {
+    fn focus (&self) -> usize {
+        self.focus
+    }
+    fn focus_mut (&mut self) -> &mut usize {
+        &mut self.focus
+    }
+    fn focusable (&self) -> [&dyn Focusable<Tui>;3] {
+        focusables!(self.transport, self.arrangement, self.editor)
+    }
+    fn focusable_mut (&mut self) -> [&mut dyn Focusable<Tui>;3] {
+        focusables_mut!(self.transport, self.arrangement, self.editor)
+    }
+}
 /// Handle top-level events in standalone arranger.
 impl Handle<Tui> for Arranger<Tui> {
     fn handle (&mut self, from: &TuiInput) -> Perhaps<bool> {
@@ -73,21 +88,6 @@ impl Handle<Tui> for Arranger<Tui> {
         Ok(Some(true))
     }
 }
-/// Focusable items in standalone arranger.
-impl Focus<3, Tui> for Arranger<Tui> {
-    fn focus (&self) -> usize {
-        self.focus
-    }
-    fn focus_mut (&mut self) -> &mut usize {
-        &mut self.focus
-    }
-    fn focusable (&self) -> [&dyn Focusable<Tui>;3] {
-        focusables!(self.transport, self.arrangement, self.editor)
-    }
-    fn focusable_mut (&mut self) -> [&mut dyn Focusable<Tui>;3] {
-        focusables_mut!(self.transport, self.arrangement, self.editor)
-    }
-}
 impl Arranger<Tui> {
     pub fn rename_selected (&mut self) {
         let Arrangement { selected, ref name, ref tracks, ref scenes, .. } = self.arrangement;

crates/tek_sequencer/src/sequencer.rs

@@ -13,12 +13,16 @@ pub struct Sequencer<E: Engine> {
     pub phrases:   Arc<RwLock<PhrasePool<E>>>,
     /// Phrase editor view
     pub editor:    PhraseEditor<E>,
+    /// Which view is focused
+    pub focus:     usize
 }
 /// Contains all phrases in a project
 pub struct PhrasePool<E: Engine> {
     _engine:     PhantomData<E>,
     /// Phrases in the pool
     pub phrases: Vec<Arc<RwLock<Option<Phrase>>>>,
+    /// Whether this widget is focused
+    pub focused: bool,
 }
 /// A MIDI sequence.
 #[derive(Debug)]
@@ -93,7 +97,8 @@ impl<E: Engine> PhrasePool<E> {
     pub fn new () -> Self {
         Self {
             _engine: Default::default(),
-            phrases: vec![Arc::new(RwLock::new(Some(Phrase::default())))]
+            phrases: vec![Arc::new(RwLock::new(Some(Phrase::default())))],
+            focused: false
         }
     }
 }

crates/tek_sequencer/src/sequencer_cli.rs

@@ -19,8 +19,12 @@ pub struct SequencerCli {
 impl SequencerCli {
     fn run (&self) -> Usually<()> {
         let seq = Sequencer {
-            transport: self.transport.unwrap_or(false)
-                .then_some(Arc::new(RwLock::new(TransportToolbar::new(None)))),
+            focus:     0,
+            editor:    PhraseEditor::new(),
+            phrases:   Arc::new(RwLock::new(PhrasePool::new())),
+            transport: self.transport.unwrap_or(false).then_some(
+               Arc::new(RwLock::new(TransportToolbar::new(None)))
+            ),
         };
         if let Some(name) = self.name.as_ref() {
             // TODO

crates/tek_sequencer/src/sequencer_tui.rs

@@ -1,4 +1,72 @@
 use crate::*;
+impl Content for Sequencer<Tui> {
+    type Engine = Tui;
+    fn content (&self) -> impl Widget<Engine = Tui> {
+        Stack::down(move|add|{
+            add(&self.transport)?;
+            add(&self.phrases.clone()
+                .split(Direction::Right, 20, &self.editor as &dyn Widget<Engine = Tui>)
+                .min_y(20)
+                .fill_y())
+        })
+    }
+}
+/// Focusable items in standalone arranger.
+impl Focus<3, Tui> for Sequencer<Tui> {
+    fn focus (&self) -> usize {
+        self.focus
+    }
+    fn focus_mut (&mut self) -> &mut usize {
+        &mut self.focus
+    }
+    fn focusable (&self) -> [&dyn Focusable<Tui>;3] {
+        focusables!(self.transport, self.phrases, self.editor)
+    }
+    fn focusable_mut (&mut self) -> [&mut dyn Focusable<Tui>;3] {
+        focusables_mut!(self.transport, self.phrases, self.editor)
+    }
+}
+/// Handle top-level events in standalone arranger.
+impl Handle<Tui> for Sequencer<Tui> {
+    fn handle (&mut self, from: &TuiInput) -> Perhaps<bool> {
+        let focus        = self.focus;
+        let is_first_row = false;
+        let is_last_row  = false;
+        match from.event() {
+            key!(KeyCode::Char(' ')) => {
+                if let Some(ref mut transport) = self.transport {
+                    transport.write().unwrap().toggle_play()?;
+                } else {
+                    return Ok(None)
+                }
+            },
+            key!(KeyCode::Tab) => {
+                self.focus_next();
+            },
+            key!(KeyCode::BackTab) => {
+                self.focus_prev();
+            },
+            key!(KeyCode::Down) => {
+                if focus == 0 {
+                    self.focus_next();
+                } else if focus == 1 && is_last_row {
+                    self.focus_next();
+                } else {
+                    return self.focused_mut().handle(from)
+                }
+            },
+            key!(KeyCode::Up) => {
+                if focus == 1 && is_first_row {
+                    self.focus_prev();
+                } else {
+                    return self.focused_mut().handle(from)
+                }
+            },
+            _ => return self.focused_mut().handle(from)
+        }
+        Ok(Some(true))
+    }
+}
 // TODO: Display phrases always in order of appearance
 impl Content for PhrasePool<Tui> {
     type Engine = Tui;
@@ -14,6 +82,24 @@ impl Content for PhrasePool<Tui> {
                 .fg(Color::Rgb(70, 80, 50))))
     }
 }
+impl Focusable<Tui> for PhrasePool<Tui> {
+    fn is_focused (&self) -> bool {
+        self.focused
+    }
+    fn set_focused (&mut self, focused: bool) {
+        self.focused = focused
+    }
+}
+impl Handle<Tui> for PhrasePool<Tui> {
+    fn handle (&mut self, from: &TuiInput) -> Perhaps<bool> {
+        match from.event() {
+            key!(KeyCode::Up) => todo!(),
+            key!(KeyCode::Down) => todo!(),
+            _ => return Ok(None),
+        }
+        return Ok(Some(true))
+    }
+}
 impl Content for PhraseEditor<Tui> {
     type Engine = Tui;
     fn content (&self) -> impl Widget<Engine = Tui> {
@@ -21,7 +107,7 @@ impl Content for PhraseEditor<Tui> {
         let toolbar = Stack::down(move|add|{
             //let name = format!("{:>9}", self.name.read().unwrap().as_str());
             //add(&col!("Track:", TuiStyle::bg(name.as_str(), field_bg)))?;
-            if let Some(phrase) = self.phrase {
+            if let Some(phrase) = &self.phrase {
                 let phrase     = phrase.read().unwrap();
                 let length     = format!("{}q{}p", phrase.length / PPQ, phrase.length % PPQ);
                 let length     = format!("{:>9}", &length);
@@ -49,10 +135,10 @@ impl Content for PhraseEditor<Tui> {
             }).fill_y(),
             // playhead
             CustomWidget::new(|_|Ok(Some([32,2])), |to: &mut TuiOutput|{
-                if let Some(phrase) = self.phrase {
+                if let Some(phrase) = &self.phrase {
                     let time_0 = self.time_axis.start;
                     let time_z = self.time_axis.scale;
-                    let now    = self.now % phrase.read().unwrap().length;
+                    let now    = 0; // TODO FIXME: self.now % phrase.read().unwrap().length;
                     let [x, y, width, _] = to.area();
                     let x2 = x as usize + Self::H_KEYS_OFFSET;
                     let x3 = x as usize + width as usize;