wip: launcher grid

src/device/launcher.rs

@@ -1,38 +1,256 @@
 use crate::prelude::*;
-
 pub struct Launcher {
-    name: String
+    name:      String,
+    timebase:  Arc<Timebase>,
+    cursor:    (usize, usize),
+    tracks:    Vec<DynamicDevice<Sequencer>>,
+    chains:    Vec<DynamicDevice<Chain>>,
+    rows:      usize,
+    show_help: bool,
 }
-
 impl Launcher {
-    pub fn new (name: &str) -> Result<DynamicDevice<Self>, Box<dyn Error>> {
+    pub fn new (name: &str, timebase: &Arc<Timebase>) -> Result<DynamicDevice<Self>, Box<dyn Error>> {
         Ok(DynamicDevice::new(render, handle, process, Self {
-            name: name.into(),
+            name:     name.into(),
+            timebase: timebase.clone(),
+            cursor:   (0, 0),
+            rows:     8,
+            tracks:   vec![
+                Sequencer::new("Drum", timebase)?,
+                Sequencer::new("Bass", timebase)?,
+                Sequencer::new("Pads", timebase)?,
+                Sequencer::new("Lead", timebase)?,
+            ],
+            chains:   vec![
+                // TODO
+            ],
+            show_help: true
         }))
     }
+    fn cols (&self) -> usize {
+        (self.tracks.len() + 1) as usize
+    }
+    fn col (&self) -> usize {
+        self.cursor.0 as usize
+    }
+    fn dec_col (&mut self) {
+        self.cursor.0 = if self.cursor.0 > 0 {
+            self.cursor.0 - 1
+        } else {
+            (self.cols() - 1) as usize
+        }
+    }
+    fn inc_col (&mut self) {
+        self.cursor.0 = if self.cursor.0 >= self.cols() - 1 {
+            0
+        } else {
+            self.cursor.0 + 1
+        }
+    }
+    fn rows (&self) -> usize {
+        (self.rows + 2) as usize
+    }
+    fn row (&self) -> usize {
+        self.cursor.1 as usize
+    }
+    fn dec_row (&mut self) {
+        self.cursor.1 = if self.cursor.1 > 0 {
+            self.cursor.1 - 1
+        } else {
+            self.rows() - 1
+        }
+    }
+    fn inc_row (&mut self) {
+        self.cursor.1 = if self.cursor.1 >= self.rows() - 1 {
+            0
+        } else {
+            self.cursor.1 + 1
+        }
+    }
 }
-
+impl DevicePorts for Launcher {}
 pub fn process (_: &mut Launcher, _: &Client, _: &ProcessScope) -> Control {
     Control::Continue
 }
-
-pub fn render (_: &Launcher, buf: &mut Buffer, area: Rect) -> Usually<Rect> {
-    for i in 1..=8 {
-        buf.set_string(area.x + 2 + (i-1) * 10, area.y, format!("Track#{i} | "), Style::default())
+macro_rules! set {
+    ($buf:expr, $style:expr, $x: expr, $y: expr, $fmt: literal $(, $val:expr)*) => {
+        $buf.set_string($x, $y, &format!($fmt $(, $val)*), $style)
     }
-    for i in 0..=7 {
-        for j in 0..=7 {
-            buf.set_string(area.x + 2 + i * 10, area.y + 2 + j, format!("······· | "), Style::default().dim())
+}
+trait Blit {
+    fn blit (&self, buf: &mut Buffer, x: u16, y: u16, style: Option<Style>);
+}
+impl<T: AsRef<str>> Blit for T {
+    fn blit (&self, buf: &mut Buffer, x: u16, y: u16, style: Option<Style>) {
+        buf.set_string(x, y, self.as_ref(), style.unwrap_or(Style::default()))
+    }
+}
+pub fn render (state: &Launcher, buf: &mut Buffer, area: Rect) -> Usually<Rect> {
+    let Rect { x, y, width, height } = area;
+    let separator = format!("├{}┤", "-".repeat((width - 2).into()));
+    let scenes    = draw_launcher_scenes(state, buf, x, y);
+    separator.blit(buf, x, y + 2, Some(Style::default().dim()));
+    separator.blit(buf, x, y + 4, Some(Style::default().dim()));
+    separator.blit(buf, x, y + 40, Some(Style::default().dim()));
+    let (w, mut highlight) = draw_launcher_tracks(state, buf, x, y);
+    if state.col() == 0 {
+        highlight = Some(scenes);
+    }
+    draw_crossings(state, buf, x + w - 2, y);
+    draw_sequencer(state, buf, x, y + 21, width, height - 22)?;
+    draw_box(buf, area);
+    draw_launcher_highlight(state, buf, &highlight);
+    Ok(area)
+}
+
+fn draw_launcher_scenes (
+    state: &Launcher, buf: &mut Buffer, x: u16, y: u16,
+) -> Rect {
+    let style = Style::default().not_dim().bold();
+    let row = state.row() as u16;
+    let col = state.col() as u16;
+    let mut width  = 8u16;
+    let mut height = 6u16;
+    format!("{} | ", state.name).blit(buf, x+2, y+1, Some(
+        if row == 0 && col == 0 { Style::default().green() } else { Style::default() }
+    ));
+    format!("Sync 1/1").blit(buf, x+2, y+3, Some(
+        if row == 1 && col == 0 { Style::default().green() } else { Style::default() }
+    ));
+    for j in 0..=7 {
+        let y = y + 5 + j as u16 * 2;
+        let label = format!("▶ Scene {j}");
+        width = width.max(label.len() as u16 + 3);
+        label.blit(buf, x + 2, y, Some(
+            if row == j + 2 && col == 0 { Style::default().green() } else { Style::default() }
+        ));
+        height = height + 2;
+    }
+    Rect { x, y, width, height }
+}
+
+fn draw_launcher_tracks (
+    state: &Launcher, buf: &mut Buffer, x: u16, y: u16
+) -> (u16, Option<Rect>) {
+    let mut w = 15;
+    let mut highlight = None;
+    for (i, track) in state.tracks.iter().enumerate() {
+        let track = track.state();
+        draw_crossings(state, buf, x + w - 2, y);
+        let width = draw_launcher_track(state, buf, x + w, y, i as u16, &track);
+        if i + 1 == state.col() {
+            highlight = Some(Rect { x: x + w - 2, y, width: width + 1, height: 22 });
+        }
+        w = w + width;
+    }
+    (w, highlight)
+}
+
+fn draw_launcher_track (
+    state: &Launcher, buf: &mut Buffer, x: u16, y: u16, i: u16, track: &Sequencer
+) -> u16 {
+    let mut width = track.name.len() as u16 + 3;
+    let row = state.row() as u16;
+    let col = state.col() as u16;
+
+    track.name.blit(buf, x, y + 1, Some(
+        if row == 0 && col == i + 1 { Style::default().green() } else { Style::default() }
+    ));
+
+    "(global)".blit(buf, x, y + 3, Some(
+        if row == 1 && col == i + 1 { Style::default().green() } else { Style::default().dim() }
+    ));
+
+    "┊".blit(buf, x - 2, y + 3, Some(
+        Style::default().dim()
+    ));
+
+    for j in 0..=7 {
+        let y = y + 5 + j as u16 * 2;
+        if let Some(sequence) = track.sequences.get(j) {
+            let label = format!("▶ {}", &sequence.name);
+            width = width.max(label.len() as u16 + 1);
+            let style = if j + 2 == row as usize && i + 1 == col {
+                Style::default().green().bold()
+            } else {
+                Style::default()
+            };
+            buf.set_string(x - 0, y + 0, &label, style);
+            buf.set_string(x - 2, y + 0, &"┊",   style.dim());
+            buf.set_string(x - 2, y + 1, &"┊",   style.dim());
+            buf.set_string(x + width - 2, y + 0, &"┊",   style.dim());
+            buf.set_string(x + width - 2, y + 1, &"┊",   style.dim());
+        } else {
+            buf.set_string(x - 2, y as u16,
+                format!("┊ {}", &"·".repeat(track.name.len())),
+                Style::default().dim()
+            );
         }
     }
-    Ok(draw_box(buf, Rect {
-        x: area.x,
-        y: area.y - 1,
-        width: area.width,
-        height: 12
-    }))
+
+    width
 }
 
-pub fn handle (_: &mut Launcher, _: &AppEvent) -> Usually<bool> {
-    Ok(false)
+fn draw_crossings (state: &Launcher, buf: &mut Buffer, x: u16, y: u16) {
+    "╭".blit(buf, x, y + 0, None);
+    "┊".blit(buf, x, y + 1, Some(Style::default().dim()));
+    "┼".blit(buf, x, y + 2, Some(Style::default().dim()));
+    "┊".blit(buf, x, y + 3, Some(Style::default().dim()));
+    "┼".blit(buf, x, y + 4, Some(Style::default().dim()));
+}
+
+fn draw_sequencer (
+    state: &Launcher, buf: &mut Buffer, x: u16, y: u16, width: u16, height: u16
+) -> Usually<()> {
+    if let Some(sequencer) = state.tracks.get(state.col().saturating_sub(1)) {
+        crate::device::sequencer::horizontal::footer(
+            &sequencer.state(), buf, 0, y, width, 0
+        );
+        crate::device::sequencer::horizontal::keys(
+            &sequencer.state(), buf, Rect { x, y: y + 3, width, height }
+        )?;
+    }
+    Ok(())
+}
+
+fn draw_launcher_highlight (
+    state: &Launcher, buf: &mut Buffer, highlight: &Option<Rect>) {
+    if let Some(area) = highlight {
+        draw_box_styled(buf, *area, Some(Style::default().green().dim()));
+    }
+}
+
+pub fn handle (state: &mut Launcher, event: &AppEvent) -> Usually<bool> {
+    handle_keymap(state, event, KEYMAP)
+}
+pub const KEYMAP: &'static [KeyBinding<Launcher>] = keymap!(Launcher {
+    [Up,        NONE, "cursor_up",    "move cursor up",         cursor_up],
+    [Down,      NONE, "cursor_down",  "move cursor down",       cursor_down],
+    [Left,      NONE, "cursor_left",  "move cursor left",       cursor_left],
+    [Right,     NONE, "cursor_right", "move cursor right",      cursor_right],
+    [Char('r'), NONE, "rename",       "rename current element", rename],
+    [F(1),      NONE, "toggle_help",  "toggle help",            toggle_help],
+});
+fn rename (_: &mut Launcher) -> Usually<bool> {
+    Ok(true)
+}
+fn cursor_up (state: &mut Launcher) -> Usually<bool> {
+    state.dec_row();
+    Ok(true)
+}
+fn cursor_down (state: &mut Launcher) -> Usually<bool> {
+    state.inc_row();
+    Ok(true)
+}
+fn cursor_left (state: &mut Launcher) -> Usually<bool> {
+    state.dec_col();
+    Ok(true)
+}
+fn cursor_right (state: &mut Launcher) -> Usually<bool> {
+    state.inc_col();
+    Ok(true)
+}
+fn toggle_help (state: &mut Launcher) -> Usually<bool> {
+    state.show_help = !state.show_help;
+    Ok(true)
 }

src/device/sequencer.rs

@@ -1,19 +1,26 @@
 use crate::prelude::*;
 use ratatui::style::Stylize;
 
-type Sequence = std::collections::BTreeMap<u32, Vec<::midly::MidiMessage>>;
-
 mod keys;
 use keys::*;
 
-mod horizontal;
-use horizontal::*;
+pub mod horizontal;
 
-mod vertical;
-use vertical::*;
+pub mod vertical;
+
+pub struct Sequence {
+    pub name:  String,
+    pub notes: std::collections::BTreeMap<u32, Vec<::midly::MidiMessage>>
+}
+
+impl Sequence {
+    pub fn new (name: &str) -> Self {
+        Self { name: name.to_string(), notes: std::collections::BTreeMap::new() }
+    }
+}
 
 pub struct Sequencer {
-    name:        String,
+    pub name:    String,
     /// JACK transport handle.
     transport:   ::jack::Transport,
     /// JACK MIDI input port that will be created.
@@ -32,7 +39,7 @@ pub struct Sequencer {
     /// Sequence selector
     sequence:   usize,
     /// Map: tick -> MIDI events at tick
-    sequences:  Vec<Sequence>,
+    pub sequences: Vec<Sequence>,
     /// Red keys on piano roll.
     notes_on:   Vec<bool>,
 
@@ -71,35 +78,44 @@ impl Sequencer {
         let transport = client.transport();
         let state     = transport.query_state()?;
         DynamicDevice::new(render, handle, Self::process, Self {
-            name:         name.into(),
-            input_port:   client.register_port("in", MidiIn::default())?,
-            output_port:  client.register_port("out", MidiOut::default())?,
+            name:        name.into(),
+            input_port:  client.register_port("in", MidiIn::default())?,
+            output_port: client.register_port("out", MidiOut::default())?,
 
-            timebase:     timebase.clone(),
-            steps:        64,
-            resolution:   8,
-            sequence:     0,
-            sequences:    vec![std::collections::BTreeMap::new();8],
-            notes_on:     vec![false;128],
+            timebase:    timebase.clone(),
+            steps:       64,
+            resolution:  4,
+            sequence:    0,
+            sequences:   vec![
+                Sequence::new(&"Phrase#01"),
+                Sequence::new(&"Phrase#02"),
+                Sequence::new(&"Phrase#03"),
+                Sequence::new(&"Phrase#04"),
+                Sequence::new(&"Phrase#05"),
+                Sequence::new(&"Phrase#06"),
+                Sequence::new(&"Phrase#07"),
+                Sequence::new(&"Phrase#08"),
+            ],
+            notes_on:    vec![false;128],
 
-            playing:      TransportState::Starting,
-            monitoring:   true,
-            recording:    true,
-            overdub:      true,
+            playing:     TransportState::Starting,
+            monitoring:  true,
+            recording:   true,
+            overdub:     true,
             transport,
 
-            mode:         SequencerView::Horizontal,
-            note_axis:    (36, 68),
-            note_cursor:  0,
-            time_axis:    (0,  64),
-            time_cursor:  0,
+            mode:        SequencerView::Horizontal,
+            note_axis:   (36, 68),
+            note_cursor: 0,
+            time_axis:   (0,  64),
+            time_cursor: 0,
         }).activate(client)
     }
 
     fn process (&mut self, _: &Client, scope: &ProcessScope) -> Control {
 
         // Update time
-        let mut sequence = &mut self.sequences[self.sequence];
+        let mut sequence = &mut self.sequences[self.sequence].notes;
         let transport = self.transport.query().unwrap();
         self.playing = transport.state;
         let pos   = &transport.pos;
@@ -112,7 +128,33 @@ impl Sequencer {
         let frames = scope.n_frames() as usize;
         let mut output: Vec<Option<Vec<Vec<u8>>>> = vec![None;frames];
 
-        // Read from input, write inputs to sequence and/or output
+        // Read from sequence into output buffer
+        if self.playing == TransportState::Rolling {
+            let frame = transport.pos.frame() as usize;
+            let quant = self.timebase.fpb() as usize * self.steps / self.resolution;
+            let ticks = self.timebase.frames_to_ticks(frame, frame + frames, quant);
+            for (time, tick) in ticks.iter() {
+                if let Some(events) = sequence.get(&(*tick as u32)) {
+                    for message in events.iter() {
+                        let mut buf = vec![];
+                        let channel = 0.into();
+                        let message = *message;
+                        ::midly::live::LiveEvent::Midi { channel, message }
+                            .write(&mut buf)
+                            .unwrap();
+                        let t = *time as usize;
+                        if output[t].is_none() {
+                            output[t] = Some(vec![]);
+                        }
+                        if let Some(Some(frame)) = output.get_mut(t) {
+                            frame.push(buf);
+                        }
+                    }
+                }
+            }
+        }
+
+        // Read from input, write inputs to sequence and/or output buffer
         for event in self.input_port.iter(scope) {
             let tick = tick as u32;
             let msg  = midly::live::LiveEvent::parse(event.bytes).unwrap();
@@ -164,40 +206,14 @@ impl Sequencer {
             }
         }
 
-        // Read from sequence
-        if self.playing == TransportState::Rolling {
-            let frame = transport.pos.frame() as usize;
-            let quant = self.timebase.fpb() as usize * self.steps / self.resolution;
-            let ticks = self.timebase.frames_to_ticks(frame, frame + frames, quant);
-            for (time, tick) in ticks.iter() {
-                if let Some(events) = sequence.get(&(*tick as u32)) {
-                    for message in events.iter() {
-                        let mut buf = vec![];
-                        ::midly::live::LiveEvent::Midi {
-                            channel: 0.into(),
-                            message: *message,
-                        }.write(&mut buf).unwrap();
-                        let t = *time as usize;
-                        if output[t].is_none() {
-                            output[t] = Some(vec![]);
-                        }
-                        if let Some(Some(frame)) = output.get_mut(t) {
-                            frame.push(buf);
-                        }
-                    }
-                }
-            }
-        }
-
-        // Write from monitor and/or sequence
+        // Write to port from output buffer
+        // (containing notes from sequence and/or monitor)
         let mut writer = self.output_port.writer(scope);
-        for t in 0..scope.n_frames() {
-            if let Some(Some(frame)) = output.get_mut(t as usize) {
+        for time in 0..scope.n_frames() {
+            if let Some(Some(frame)) = output.get_mut(time as usize) {
                 for event in frame.iter() {
-                    writer.write(&::jack::RawMidi {
-                        time:  t,
-                        bytes: &event
-                    }).expect(&format!("{event:?}"));
+                    writer.write(&::jack::RawMidi { time, bytes: &event })
+                        .expect(&format!("{event:?}"));
                 }
             }
         }
@@ -221,13 +237,13 @@ fn render (s: &Sequencer, buf: &mut Buffer, mut area: Rect) -> Usually<Rect> {
             Rect { x, y, width, height: 0 },
         SequencerView::Compact =>
             Rect { x, y, width, height: 0 },
-        SequencerView::Vertical => draw_vertical(s, buf, Rect {
+        SequencerView::Vertical => self::vertical::draw(s, buf, Rect {
             x,
             y: y + header.height,
             width:  3 + note1 - note0,
             height: 3 + time1 - time0,
         }, steps)?,
-        SequencerView::Horizontal => draw_horizontal(s, buf, Rect {
+        SequencerView::Horizontal => self::horizontal::draw(s, buf, Rect {
             x,
             y: y + header.height,
             width:  area.width.max(3 + time1 - time0),
@@ -256,9 +272,9 @@ fn draw_header (s: &Sequencer, buf: &mut Buffer, area: Rect, beat: usize) -> Usu
         TransportState::Starting => format!("READY ..."),
         TransportState::Stopped  => format!("⏹ STOPPED")
     }, match s.playing {
-        TransportState::Rolling  => style.dim().bold(),
+        TransportState::Stopped  => style.dim().bold(),
         TransportState::Starting => style.not_dim().bold(),
-        TransportState::Stopped  => style.not_dim().white().bold()
+        TransportState::Rolling  => style.not_dim().white().bold()
     });
     buf.set_string(x, y + 2, format!("├{}┤", "-".repeat((area.width - 2).into())), style.dim());
     //buf.set_string(x + 2, y + 2,
@@ -267,24 +283,21 @@ fn draw_header (s: &Sequencer, buf: &mut Buffer, area: Rect, beat: usize) -> Usu
         //} else {
             //Style::default().dim()
         //});
-    buf.set_string(x + 13, y + 1,
-        &format!("⏺ REC"), if s.recording {
-            Style::default().bold().red()
-        } else {
-            Style::default().bold().dim()
-        });
-    buf.set_string(x + 20, y + 1,
-        &format!("⏺ DUB"), if s.overdub {
-            Style::default().bold().yellow()
-        } else {
-            Style::default().bold().dim()
-        });
-    buf.set_string(x + 27, y + 1,
-        &format!("⏺ MON"), if s.monitoring {
-            Style::default().bold().green()
-        } else {
-            Style::default().bold().dim()
-        });
+    buf.set_string(x + 13, y + 1, &format!("⏺ REC"), if s.recording {
+        Style::default().bold().red()
+    } else {
+        Style::default().bold().dim()
+    });
+    buf.set_string(x + 20, y + 1, &format!("⏺ DUB"), if s.overdub {
+        Style::default().bold().yellow()
+    } else {
+        Style::default().bold().dim()
+    });
+    buf.set_string(x + 27, y + 1, &format!("⏺ MON"), if s.monitoring {
+        Style::default().bold().green()
+    } else {
+        Style::default().bold().dim()
+    });
     let clips = draw_clips(s, buf, area)?;
     Ok(Rect { x, y, width: area.width, height: 3 })
 }
@@ -292,8 +305,9 @@ fn draw_header (s: &Sequencer, buf: &mut Buffer, area: Rect, beat: usize) -> Usu
 fn draw_clips (s: &Sequencer, buf: &mut Buffer, area: Rect) -> Usually<Rect> {
     let Rect { x, y, .. } = area;
     let style = Style::default().gray();
-    for i in 0..8 {
-        buf.set_string(x + 2, y + 3 + i*2, &format!("▶ {}", &s.name), if i as usize == s.sequence {
+    for (i, sequence) in s.sequences.iter().enumerate() {
+        let label = format!("▶ {}", &sequence.name);
+        buf.set_string(x + 2, y + 3 + (i as u16)*2, &label, if i == s.sequence {
             match s.playing {
                 TransportState::Rolling => style.white().bold(),
                 _ => style.not_dim().bold()
@@ -306,7 +320,7 @@ fn draw_clips (s: &Sequencer, buf: &mut Buffer, area: Rect) -> Usually<Rect> {
 }
 
 pub fn contains_note_on (sequence: &Sequence, k: ::midly::num::u7, start: u32, end: u32) -> bool {
-    for (_, (_, events)) in sequence.range(start..end).enumerate() {
+    for (_, (_, events)) in sequence.notes.range(start..end).enumerate() {
         for event in events.iter() {
             match event {
                 ::midly::MidiMessage::NoteOn {key,..} => {
@@ -339,9 +353,10 @@ pub const KEYMAP: &'static [KeyBinding<Sequencer>] = keymap!(Sequencer {
     [Char('z'), NONE,  "note_del",        "Delete note",              note_del],
     [CapsLock,  NONE,  "advance",         "Toggle auto advance",      nop],
     [Char('w'), NONE,  "rest",            "Advance by note duration", nop],
+    [Char(' '), NONE,  "toggle_play",     "Toggle play/pause",        toggle_play],
     [Char('r'), NONE,  "toggle_record",   "Toggle recording",         toggle_record],
     [Char('d'), NONE,  "toggle_overdub",  "Toggle overdub",           toggle_overdub],
-    [Char(' '), NONE,  "toggle_play",     "Toggle play/pause",        toggle_play],
+    [Char('m'), NONE,  "toggle_monitor",  "Toggle input monitoring",  toggle_monitor],
     [Char('s'), NONE,  "stop_and_rewind", "Stop and rewind",          stop_and_rewind],
     [Char('q'), NONE,  "quantize_next",   "Next quantize value",      quantize_next],
     [Char('Q'), SHIFT, "quantize_prev",   "Previous quantize value",  quantize_prev],
@@ -378,7 +393,7 @@ fn note_add (s: &mut Sequencer) -> Usually<bool> {
     let key      = ::midly::num::u7::from_int_lossy((s.note_cursor + s.note_axis.0) as u8);
     let note_on  = ::midly::MidiMessage::NoteOn { key, vel: 100.into() };
     let note_off = ::midly::MidiMessage::NoteOff { key, vel: 100.into() };
-    let mut sequence = &mut s.sequences[s.sequence];
+    let mut sequence = &mut s.sequences[s.sequence].notes;
     if sequence.contains_key(&start) {
         sequence.get_mut(&start).unwrap().push(note_on.clone());
     } else {
@@ -496,6 +511,10 @@ fn toggle_overdub (s: &mut Sequencer) -> Usually<bool> {
     s.overdub = !s.overdub;
     Ok(true)
 }
+fn toggle_monitor (s: &mut Sequencer) -> Usually<bool> {
+    s.monitoring = !s.monitoring;
+    Ok(true)
+}
 fn quantize_next (s: &mut Sequencer) -> Usually<bool> {
     if s.resolution < 64 {
         s.resolution = s.resolution * 2;

src/device/sequencer/horizontal.rs

@@ -1,7 +1,7 @@
 use crate::prelude::*;
 use super::*;
 
-pub fn draw_horizontal (
+pub fn draw (
     s: &Sequencer,
     buf: &mut Buffer,
     mut area: Rect,
@@ -14,7 +14,7 @@ pub fn draw_horizontal (
     let height = 32.max(s.note_axis.1 - s.note_axis.0) / 2;
     lanes(s, buf, x, y, width);
     cursor(s, buf, x, y);
-    footer(s, buf, x, y, width, height);
+    footer(s, buf, x - 13, y, width, height);
     Ok(Rect {
         x:      x - 13,
         y:      y,
@@ -23,7 +23,7 @@ pub fn draw_horizontal (
     })
 }
 
-fn timer (s: &Sequencer, buf: &mut Buffer, x: u16, y: u16, beat: usize) {
+pub fn timer (s: &Sequencer, buf: &mut Buffer, x: u16, y: u16, beat: usize) {
     let bw = Style::default().dim();
     let bg = Style::default().on_black();
     let (time0, time1) = s.time_axis;
@@ -36,18 +36,19 @@ fn timer (s: &Sequencer, buf: &mut Buffer, x: u16, y: u16, beat: usize) {
     }
 }
 
-fn lanes (s: &Sequencer, buf: &mut Buffer, x: u16, y: u16, width: u16) {
+pub fn lanes (s: &Sequencer, buf: &mut Buffer, x: u16, y: u16, width: u16) {
     let bw = Style::default().dim();
     let bg = Style::default().on_black();
     let ppq = s.timebase.ppq() as u32;
     let (time0, time1) = s.time_axis;
+    let notes = &s.sequences[s.sequence].notes;
     for step in time0..time1 {
         let time_start = step as u32 * ppq;
         let time_end   = (step + 1) as u32 * ppq;
         if step % s.resolution as u16 == 0 {
             buf.set_string(x + 6 + step, y - 1, &format!("{}", step + 1), Style::default());
         }
-        for (_, (_, events)) in s.sequences[s.sequence].range(time_start..time_end).enumerate() {
+        for (_, (_, events)) in notes.range(time_start..time_end).enumerate() {
             if events.len() > 0 {
                 buf.set_string(x + 6 + step as u16, y, "█", bw);
             }
@@ -55,14 +56,16 @@ fn lanes (s: &Sequencer, buf: &mut Buffer, x: u16, y: u16, width: u16) {
     }
 }
 
-fn footer (s: &Sequencer, buf: &mut Buffer, x: u16, y: u16, width: u16, height: u16) {
+pub fn footer (s: &Sequencer, buf: &mut Buffer, mut x: u16, y: u16, width: u16, height: u16) {
     let bw = Style::default().dim();
     let bg = Style::default().on_black();
     let (note0, note1) = s.note_axis;
-    buf.set_string(x - 13, y + height, format!("├{}┤", "-".repeat((width - 2).into())),
+    buf.set_string(x, y + height, format!("├{}┤", "-".repeat((width - 2).into())),
         Style::default().dim());
+    buf.set_string(x, y + height + 2, format!("├{}┤", "-".repeat((width - 2).into())),
+        Style::default().dim());
+    x = x + 2;
     {
-        let mut x = x - 11;
         for (i, [letter, title, value]) in [
             ["S", &format!("ync"),  &format!("<4/4>")],
             ["Q", &format!("uant"), &format!("<1/{}>", 4 * s.resolution)],
@@ -87,7 +90,7 @@ fn footer (s: &Sequencer, buf: &mut Buffer, x: u16, y: u16, width: u16, height:
     }
 }
 
-fn cursor (s: &Sequencer, buf: &mut Buffer, x: u16, y: u16) {
+pub fn cursor (s: &Sequencer, buf: &mut Buffer, x: u16, y: u16) {
     let bw = Style::default().dim();
     let bg = Style::default().on_black();
     buf.set_string(
@@ -98,7 +101,7 @@ fn cursor (s: &Sequencer, buf: &mut Buffer, x: u16, y: u16) {
     );
 }
 
-fn keys (s: &Sequencer, buf: &mut Buffer, mut area: Rect) -> Usually<Rect> {
+pub fn keys (s: &Sequencer, buf: &mut Buffer, mut area: Rect) -> Usually<Rect> {
     let bw = Style::default().dim();
     let bg = Style::default().on_black();
     let Rect { x, y, .. } = area;

src/device/sequencer/vertical.rs

@@ -1,7 +1,7 @@
 use crate::prelude::*;
 use super::*;
 
-pub fn draw_vertical (
+pub fn draw (
     s: &Sequencer,
     buf: &mut Buffer,
     mut area: Rect,
@@ -17,7 +17,7 @@ pub fn draw_vertical (
     Ok(Rect { x, y, width: area.width, height: height + 3 })
 }
 
-fn steps (s: &Sequencer, buf: &mut Buffer, area: Rect, beat: usize) {
+pub fn steps (s: &Sequencer, buf: &mut Buffer, area: Rect, beat: usize) {
     let ppq = s.timebase.ppq() as u32;
     let bw = Style::default().dim().on_black();
     let bg = Style::default().on_black();
@@ -64,7 +64,7 @@ fn steps (s: &Sequencer, buf: &mut Buffer, area: Rect, beat: usize) {
     }
 }
 
-fn footer (s: &Sequencer, buf: &mut Buffer, x: u16, y: u16, height: u16) {
+pub fn footer (s: &Sequencer, buf: &mut Buffer, x: u16, y: u16, height: u16) {
     buf.set_string(x + 2, y + height + 1, format!(
         "Q 1/{} | N {} ({}-{}) | T {} ({}-{})",
         4 * s.resolution,
@@ -77,7 +77,7 @@ fn footer (s: &Sequencer, buf: &mut Buffer, x: u16, y: u16, height: u16) {
     ), Style::default().dim());
 }
 
-fn playhead (s: &Sequencer, buf: &mut Buffer, x: u16, y: u16) {
+pub fn playhead (s: &Sequencer, buf: &mut Buffer, x: u16, y: u16) {
     buf.set_string(
         x + 5 + s.note_cursor,
         y + s.time_cursor / 2,
@@ -86,7 +86,7 @@ fn playhead (s: &Sequencer, buf: &mut Buffer, x: u16, y: u16) {
     );
 }
 
-fn keys (s: &Sequencer, buf: &mut Buffer, mut area: Rect, beat: usize) {
+pub fn keys (s: &Sequencer, buf: &mut Buffer, mut area: Rect, beat: usize) {
     let ppq = s.timebase.ppq() as u32;
     let Rect { x, y, .. } = area;
     let (note0, note1) = s.note_axis;

src/main.rs

@@ -21,10 +21,12 @@ fn main () -> Result<(), Box<dyn Error>> {
     crate::config::create_dirs(&xdg)?;
     let transport = crate::device::Transport::new("Transport")?;
     let timebase  = transport.state.lock().unwrap().timebase();
-    crate::device::run(Chain::new("Chain#0000", vec![
-        Box::new(Sequencer::new("Phrase#000", &timebase)?),
-        Box::new(Sequencer::new("Phrase#001", &timebase)?),
-        //Box::new(Sequencer::new("Phrase#002", &timebase)?),
-        //Box::new(Plugin::new("Plugin#000")?),
-    ])?)
+    //crate::device::run(Sequencer::new("Sequencer#0", &timebase)?)
+    crate::device::run(Launcher::new("Launcher#0", &timebase)?)
+    //crate::device::run(Chain::new("Chain#0000", vec![
+        //Box::new(Sequencer::new("Phrase#000", &timebase)?),
+        //Box::new(Sequencer::new("Phrase#001", &timebase)?),
+        ////Box::new(Sequencer::new("Phrase#002", &timebase)?),
+        ////Box::new(Plugin::new("Plugin#000")?),
+    //])?)
 }