editor: move to device crate

crates/device/src/editor/editor_view_v.rs

@@ -0,0 +1,37 @@
+use crate::*;
+
+pub struct OctaveVertical {
+    on:     [bool; 12],
+    colors: [Color; 3]
+}
+
+impl Default for OctaveVertical {
+    fn default () -> Self {
+        Self {
+            on:     [false; 12],
+            colors: [Rgb(255,255,255), Rgb(0,0,0), Rgb(255,0,0)]
+        }
+    }
+}
+
+impl OctaveVertical {
+    fn color (&self, pitch: usize) -> Color {
+        let pitch = pitch % 12;
+        self.colors[if self.on[pitch] { 2 } else {
+            match pitch { 0 | 2 | 4 | 5 | 6 | 8 | 10 => 0, _ => 1 }
+        }]
+    }
+}
+
+impl Content<TuiOut> for OctaveVertical {
+    fn content (&self) -> impl Render<TuiOut> {
+        row!(
+            Tui::fg_bg(self.color(0),  self.color(1),  "▙"),
+            Tui::fg_bg(self.color(2),  self.color(3),  "▙"),
+            Tui::fg_bg(self.color(4),  self.color(5),  "▌"),
+            Tui::fg_bg(self.color(6),  self.color(7),  "▟"),
+            Tui::fg_bg(self.color(8),  self.color(9),  "▟"),
+            Tui::fg_bg(self.color(10), self.color(11), "▟"),
+        )
+    }
+}