some more core refactor before fixing the mess

crates/tek_core/src/audio.rs

@@ -1,6 +1,12 @@
 use jack::*;
 use crate::*;
 
+submod! {
+    device
+    event
+    ports
+}
+
 /// A UI component that may be associated with a JACK client by the `Jack` factory.
 pub trait Device<E: Engine>: Component<E> + Process {
     /// Perform type erasure for collecting heterogeneous devices.
@@ -228,4 +234,3 @@ fn query_ports (
         ports
     })
 }
-

crates/tek_core/src/audio/device.rs

@@ -1,4 +1,5 @@
-use crate::{*, jack::*};
+use ::jack::*;
+use crate::*;
 
 /// A [Device] bound to a JACK client and a set of ports.
 pub struct JackDevice<E: Engine> {
@@ -62,3 +63,4 @@ impl<E: Engine> JackDevice<E> {
     }
 }
 
+

crates/tek_core/src/audio/event.rs

@@ -1,4 +1,5 @@
-use crate::jack::*;
+use ::jack::*;
+use crate::*;
 
 /// Notification handler used by the [Jack] factory
 /// when constructing [JackDevice]s.
@@ -68,4 +69,3 @@ impl<T: Fn(JackEvent) + Send> NotificationHandler for Notifications<T> {
         Control::Continue
     }
 }
-

crates/tek_core/src/audio/ports.rs

@@ -1,4 +1,5 @@
-use crate::{*, jack::*};
+use ::jack::*;
+use crate::*;
 
 /// Collection of JACK ports as [AudioIn]/[AudioOut]/[MidiIn]/[MidiOut].
 #[derive(Default, Debug)]
@@ -91,4 +92,3 @@ pub trait Ports {
         )?}
     };
 }
-

crates/tek_core/src/engine.rs

@@ -25,6 +25,9 @@ pub trait HandleContext {}
 pub trait RenderContext {}
 
 submod! {
-    render
+    exit
+    focus
     handle
+    keymap
+    render
 }

crates/tek_core/src/engine/exit.rs

@@ -8,6 +8,16 @@ pub trait Exit: Send {
     }
 }
 
+/// Marker trait for [Component]s that can [Exit]
+pub trait ExitableComponent<E>: Exit + Component<E> where E: Engine {
+    /// Perform type erasure for collecting heterogeneous components.
+    fn boxed (self) -> Box<dyn ExitableComponent<E>> where Self: Sized + 'static {
+        Box::new(self)
+    }
+}
+
+impl<E: Engine, C: Component<E> + Exit> ExitableComponent<E> for C {}
+
 #[macro_export] macro_rules! exit {
     ($T:ty) => {
         impl Exit for $T {
@@ -20,13 +30,3 @@ pub trait Exit: Send {
         }
     }
 }
-
-/// Marker trait for [Component]s that can [Exit]
-pub trait ExitableComponent<E>: Exit + Component<E> where E: Engine {
-    /// Perform type erasure for collecting heterogeneous components.
-    fn boxed (self) -> Box<dyn ExitableComponent<E>> where Self: Sized + 'static {
-        Box::new(self)
-    }
-}
-
-impl<E: Engine, C: Component<E> + Exit> ExitableComponent<E> for C {}

crates/tek_core/src/lib.rs

@@ -27,16 +27,10 @@ use better_panic::{Settings, Verbosity};
 }
 
 submod! {
+    audio
     component
     edn
     engine
-    exit
-    focus
-    jack_core
-    jack_device
-    jack_event
-    jack_ports
-    keymap
     space
     time
     tui

crates/tek_core/src/render.rs

@@ -1 +0,0 @@
-use crate::*;

crates/tek_sequencer/src/arranger_view_v.rs

@@ -77,7 +77,7 @@ impl<'a> Render<Tui> for RowSeparators<'a> {
             if y >= to.buffer().area.height {
                 break
             }
-            for x in area.x..area.width+area.y-2 {
+            for x in area.x..(area.width+area.y).saturating_sub(2) {
                 let cell = to.buffer().get_mut(x, y);
                 cell.modifier = Modifier::UNDERLINED;
                 cell.underline_color = Nord::SEPARATOR;

crates/tek_sequencer/src/sequencer_view_h.rs

@@ -143,8 +143,8 @@ impl<'a> Render<Tui> for SequenceNotes<'a> {
         let area = Rect {
             x:      area.x + Sequencer::H_KEYS_OFFSET as u16,
             y:      area.y + 1,
-            width:  area.width - Sequencer::H_KEYS_OFFSET as u16,
+            width:  area.width.saturating_sub(Sequencer::H_KEYS_OFFSET as u16),
-            height: area.height - 2
+            height: area.height.saturating_sub(2),
         };
         to.buffer_update(area, &move |cell, x, y|{
             let src_x = ((x as usize + self.0.time_axis.start) * self.0.time_axis.scale) as usize;