wip: borrow checker battles

crates/tek_sequencer/src/arranger.rs

@@ -2,7 +2,7 @@
 use crate::*;
 
 /// Represents the tracks and scenes of the composition.
-pub struct Arranger {
+pub struct Arranger<T, U> {
     /// Name of arranger
     pub name:     Arc<RwLock<String>>,
     /// Collection of tracks.
@@ -14,14 +14,11 @@ pub struct Arranger {
     /// Display mode of arranger
     pub mode:     ArrangerViewMode,
     /// Slot for modal dialog displayed on top of app.
-    pub modal:    Option<Box<dyn ExitableComponent>>,
+    pub modal:    Option<Box<dyn ExitableComponent<T, U>>>,
     /// Whether the arranger is currently focused
     pub focused:  bool
 }
-
-focusable!(Arranger (focused));
-
-impl Arranger {
+impl<T, U> Arranger<T, U> {
     pub fn new (name: &str) -> Self {
         Self {
             name:     Arc::new(RwLock::new(name.into())),
@@ -83,3 +80,56 @@ impl Arranger {
         }
     }
 }
+/// Display mode of arranger
+pub enum ArrangerViewMode {
+    VerticalExpanded,
+    VerticalCompact1,
+    VerticalCompact2,
+    Horizontal,
+}
+/// Arranger display mode can be cycled
+impl ArrangerViewMode {
+    /// Cycle arranger display mode
+    pub fn to_next (&mut self) {
+        *self = match self {
+            Self::VerticalExpanded => Self::VerticalCompact1,
+            Self::VerticalCompact1 => Self::VerticalCompact2,
+            Self::VerticalCompact2 => Self::Horizontal,
+            Self::Horizontal       => Self::VerticalExpanded,
+        }
+    }
+}
+/// Render arranger to terminal
+impl<'a> Render<TuiOutput<'a>, Rect> for Arranger<TuiOutput<'a>, Rect> {
+    fn render (&'a self, to: &'a mut TuiOutput<'a>) -> Perhaps<Rect> {
+        let area = (|to|match self.mode {
+            ArrangerViewMode::Horizontal =>
+                super::arranger_view_h::draw(self, to),
+            ArrangerViewMode::VerticalCompact1 =>
+                super::arranger_view_v::draw_compact_1(self, to),
+            ArrangerViewMode::VerticalCompact2 =>
+                super::arranger_view_v::draw_compact_2(self, to),
+            ArrangerViewMode::VerticalExpanded =>
+                super::arranger_view_v::draw_expanded(self, to),
+        })(&mut to.area(Rect {
+            x:      to.area.x + 1,
+            width:  to.area.width - 2,
+            y:      to.area.y + 1,
+            height: to.area.height - 2
+        }))?.unwrap();
+        Lozenge(Style::default().fg(Nord::BG2)).draw(&mut to.area(Rect {
+            x: area.x.saturating_sub(1),
+            width: area.width + 2,
+            y: area.y.saturating_sub(1),
+            height: area.height + 2,
+        }))
+    }
+}
+impl<'a> Focusable<TuiOutput<'a>, Rect> for Arranger<TuiOutput<'a>, Rect> {
+    fn is_focused (&self) -> bool {
+        self.focused
+    }
+    fn set_focused (&mut self, focused: bool) {
+        self.focused = focused
+    }
+}