wip: remodularize 2

midi/src/piano_h.rs

@@ -0,0 +1,161 @@
+use crate::*;
+use super::*;
+
+pub(crate) fn note_y_iter (note_lo: usize, note_hi: usize, y0: u16) -> impl Iterator<Item=(usize, u16, usize)> {
+    (note_lo..=note_hi).rev().enumerate().map(move|(y, n)|(y, y0 + y as u16, n))
+}
+
+render!(TuiOut: (self: PianoHorizontal) => Bsp::s(
+    Fixed::y(1, Bsp::e(
+        Fixed::x(self.keys_width, ""),
+        Fill::x(PianoHorizontalTimeline(self)),
+    )),
+    Fill::xy(Bsp::e(
+        Fixed::x(self.keys_width, PianoHorizontalKeys(self)),
+        Fill::xy(self.size.of(lay!(
+            Fill::xy(PianoHorizontalNotes(self)),
+            Fill::xy(PianoHorizontalCursor(self)),
+        ))),
+    )),
+));
+
+impl PianoHorizontal {
+    /// Draw the piano roll foreground using full blocks on note on and half blocks on legato: █▄ █▄ █▄
+    fn draw_bg (buf: &mut BigBuffer, phrase: &MidiClip, zoom: usize, note_len: usize) {
+        for (y, note) in (0..=127).rev().enumerate() {
+            for (x, time) in (0..buf.width).map(|x|(x, x*zoom)) {
+                let cell = buf.get_mut(x, y).unwrap();
+                cell.set_bg(phrase.color.darkest.rgb);
+                cell.set_fg(phrase.color.darker.rgb);
+                cell.set_char(if time % 384 == 0 {
+                    '│'
+                } else if time % 96 == 0 {
+                    '╎'
+                } else if time % note_len == 0 {
+                    '┊'
+                } else if (127 - note) % 12 == 0 {
+                    '='
+                } else if (127 - note) % 6 == 0 {
+                    '—'
+                } else {
+                    '·'
+                });
+            }
+        }
+    }
+    /// Draw the piano roll background using full blocks on note on and half blocks on legato: █▄ █▄ █▄
+    fn draw_fg (buf: &mut BigBuffer, phrase: &MidiClip, zoom: usize) {
+        let style = Style::default().fg(phrase.color.base.rgb);//.bg(Color::Rgb(0, 0, 0));
+        let mut notes_on = [false;128];
+        for (x, time_start) in (0..phrase.length).step_by(zoom).enumerate() {
+
+            for (y, note) in (0..=127).rev().enumerate() {
+                if let Some(cell) = buf.get_mut(x, note) {
+                    if notes_on[note] {
+                        cell.set_char('▂');
+                        cell.set_style(style);
+                    }
+                }
+            }
+
+            let time_end = time_start + zoom;
+            for time in time_start..time_end.min(phrase.length) {
+                for event in phrase.notes[time].iter() {
+                    match event {
+                        MidiMessage::NoteOn { key, .. } => {
+                            let note = key.as_int() as usize;
+                            let cell = buf.get_mut(x, note).unwrap();
+                            cell.set_char('█');
+                            cell.set_style(style);
+                            notes_on[note] = true
+                        },
+                        MidiMessage::NoteOff { key, .. } => {
+                            notes_on[key.as_int() as usize] = false
+                        },
+                        _ => {}
+                    }
+                }
+            }
+
+        }
+    }
+}
+
+has_size!(<TuiOut>|self:PianoHorizontal|&self.size);
+
+impl TimeRange for PianoHorizontal {
+    fn time_len   (&self) -> &AtomicUsize { self.range.time_len()   }
+    fn time_zoom  (&self) -> &AtomicUsize { self.range.time_zoom()  }
+    fn time_lock  (&self) -> &AtomicBool  { self.range.time_lock()  }
+    fn time_start (&self) -> &AtomicUsize { self.range.time_start() }
+    fn time_axis  (&self) -> &AtomicUsize { self.range.time_axis()  }
+}
+impl NoteRange for PianoHorizontal {
+    fn note_lo    (&self) -> &AtomicUsize { self.range.note_lo()    }
+    fn note_axis  (&self) -> &AtomicUsize { self.range.note_axis()  }
+}
+impl NotePoint for PianoHorizontal {
+    fn note_len (&self) -> usize { self.point.note_len() }
+    fn set_note_len (&self, x: usize) { self.point.set_note_len(x) }
+    fn note_point (&self) -> usize { self.point.note_point() }
+    fn set_note_point (&self, x: usize) { self.point.set_note_point(x) }
+}
+impl TimePoint for PianoHorizontal {
+    fn time_point (&self) -> usize { self.point.time_point() }
+    fn set_time_point (&self, x: usize) { self.point.set_time_point(x) }
+}
+impl MidiViewer for PianoHorizontal {
+    fn phrase (&self) -> &Option<Arc<RwLock<MidiClip>>> {
+        &self.phrase
+    }
+    fn phrase_mut (&mut self) -> &mut Option<Arc<RwLock<MidiClip>>> {
+        &mut self.phrase
+    }
+    /// Determine the required space to render the phrase.
+    fn buffer_size (&self, phrase: &MidiClip) -> (usize, usize) {
+        (phrase.length / self.range.time_zoom().get(), 128)
+    }
+    fn redraw (&self) {
+        let buffer = if let Some(phrase) = self.phrase.as_ref() {
+            let phrase     = phrase.read().unwrap();
+            let buf_size   = self.buffer_size(&phrase);
+            let mut buffer = BigBuffer::from(buf_size);
+            let note_len   = self.note_len();
+            let time_zoom  = self.time_zoom().get();
+            self.time_len().set(phrase.length);
+            PianoHorizontal::draw_bg(&mut buffer, &phrase, time_zoom, note_len);
+            PianoHorizontal::draw_fg(&mut buffer, &phrase, time_zoom);
+            buffer
+        } else {
+            Default::default()
+        };
+        *self.buffer.write().unwrap() = buffer
+    }
+    fn set_phrase (&mut self, phrase: Option<&Arc<RwLock<MidiClip>>>) {
+        *self.phrase_mut() = phrase.cloned();
+        self.color = phrase.map(|p|p.read().unwrap().color)
+            .unwrap_or(ItemPalette::from(ItemColor::from(TuiTheme::g(64))));
+        self.redraw();
+    }
+}
+
+impl std::fmt::Debug for PianoHorizontal {
+    fn fmt (&self, f: &mut std::fmt::Formatter<'_>) -> std::result::Result<(), std::fmt::Error> {
+        let buffer = self.buffer.read().unwrap();
+        f.debug_struct("PianoHorizontal")
+            .field("time_zoom", &self.range.time_zoom)
+            .field("buffer", &format!("{}x{}", buffer.width, buffer.height))
+            .finish()
+    }
+}
+        // Update sequencer playhead indicator
+        //self.now().set(0.);
+        //if let Some((ref started_at, Some(ref playing))) = self.player.play_phrase {
+            //let phrase = phrase.read().unwrap();
+            //if *playing.read().unwrap() == *phrase {
+                //let pulse = self.current().pulse.get();
+                //let start = started_at.pulse.get();
+                //let now   = (pulse - start) % phrase.length as f64;
+                //self.now().set(now);
+            //}
+        //}