[ui] pianoroll

crates/ui/src/app.rs

@@ -1,6 +1,8 @@
 use params::{ParamId, ParamStore};
 use vizia::prelude::*;
 
+use crate::widgets::piano::PianoKeyboard;
+
 #[derive(Clone, Copy, Debug, PartialEq, Data)]
 pub enum Panel {
     Osc,
@@ -42,6 +44,8 @@ pub struct AppData {
     pub host_bpm: f32,
     #[lens(ignore)]
     pub store: ParamStore,
+    pub held_notes: Vec<u8>,
+    pub octave: i32,
 }
 
 impl AppData {
@@ -57,6 +61,8 @@ impl AppData {
             voice_count: 0,
             cpu_load: 0.0,
             host_bpm: 120.0,
+            held_notes: Vec::new(),
+            octave: 4,
         }
     }
 }
@@ -66,10 +72,15 @@ pub enum AppEvent {
     SetParam(ParamId, f32),
     SetPanel(Panel),
     UpdateMetrics { voices: u8, cpu: f32 },
+
+    NoteOn(u8, u8),
+    NoteOff(u8),
+    OctaveUp,
+    OctaveDown,
 }
 
 impl Model for AppData {
-    fn event(&mut self, _cx: &mut EventContext, event: &mut Event) {
+    fn event(&mut self, cx: &mut EventContext, event: &mut Event) {
         event.map(|e: &AppEvent, _| match e {
             AppEvent::SetParam(id, val) => {
                 let v = val.clamp(0.0, 1.0);
@@ -81,6 +92,17 @@ impl Model for AppData {
                 self.voice_count = *voices;
                 self.cpu_load = *cpu;
             }
+            AppEvent::NoteOn(note, _vel) => {
+                if !self.held_notes.contains(note) {
+                    self.held_notes.push(*note);
+                }
+            }
+            AppEvent::NoteOff(note) => self.held_notes.retain(|n| n != note),
+            AppEvent::OctaveUp => self.octave = (self.octave + 1).min(8),
+            AppEvent::OctaveDown => self.octave = (self.octave - 1).max(0),
+        });
+        event.map(|we: &WindowEvent, _| {
+            crate::widgets::piano::handle_kbd(cx, we, self.octave);
         });
     }
 }
@@ -116,6 +138,7 @@ pub fn build_root(cx: &mut Context) {
             crate::panels::macro_bar::build(cx);
         })
         .height(Stretch(1.0));
+        PianoKeyboard::new(cx);
     })
     .background_color(Color::rgb(18, 18, 28))
     .width(Stretch(1.0))