flatten workspace into 1 crate

src/arranger/arranger_mode.rs

@@ -0,0 +1,26 @@
+use crate::*;
+/// Display mode of arranger
+#[derive(Clone, PartialEq)]
+pub enum ArrangerMode {
+    /// Tracks are columns
+    V(usize),
+    /// Tracks are rows
+    H,
+}
+render!(<Tui>|self: ArrangerMode|{});
+/// Arranger display mode can be cycled
+impl ArrangerMode {
+    /// Cycle arranger display mode
+    pub fn next (&mut self) {
+        *self = match self {
+            Self::H    => Self::V(1),
+            Self::V(1) => Self::V(2),
+            Self::V(2) => Self::V(2),
+            Self::V(0) => Self::H,
+            Self::V(_) => Self::V(0),
+        }
+    }
+}
+fn any_size <E: Engine> (_: E::Size) -> Perhaps<E::Size>{
+    Ok(Some([0.into(),0.into()].into()))
+}