Switch back to custom geometry types, unified with layout primitives 🏞

1 files changed, 53 insertions, 0 deletions

diff --git a/src/geom/mod.rs b/src/geom/mod.rs
new file mode 100644
index 00000000..c9c3040c
--- /dev/null
+++ b/src/geom/mod.rs
@@ -0,0 +1,53 @@
+//! Geometrical primitivies.
+
+#[macro_use]
+mod macros;
+mod align;
+mod dir;
+mod gen;
+mod length;
+mod linear;
+mod point;
+mod relative;
+mod sides;
+mod size;
+mod spec;
+
+pub use align::*;
+pub use dir::*;
+pub use gen::*;
+pub use length::*;
+pub use linear::*;
+pub use point::*;
+pub use relative::*;
+pub use sides::*;
+pub use size::*;
+pub use spec::*;
+
+use std::fmt::{self, Debug, Display, Formatter};
+use std::iter::Sum;
+use std::ops::*;
+
+/// Generic access to a structure's components.
+pub trait Get<Index> {
+    /// The structure's component type.
+    type Component;
+
+    /// Return the component for the specified index.
+    fn get(self, index: Index) -> Self::Component;
+
+    /// Borrow the component for the specified index mutably.
+    fn get_mut(&mut self, index: Index) -> &mut Self::Component;
+}
+
+/// Switch between the specific and generic representations of a type.
+///
+/// The generic representation deals with main and cross axes while the specific
+/// representation deals with horizontal and vertical axes.
+pub trait Switch {
+    /// The type of the other version.
+    type Other;
+
+    /// The other version of this type based on the current directions.
+    fn switch(self, dirs: Gen<Dir>) -> Self::Other;
+}