wip: modularize once again

tui/src/lib.rs

@@ -17,8 +17,9 @@ mod tui_color;  pub use self::tui_color::*;
 mod tui_style;  pub use self::tui_style::*;
 mod tui_theme;  pub use self::tui_theme::*;
 mod tui_border; pub use self::tui_border::*;
+mod tui_field;  pub use self::tui_field::*;
 
-pub(crate) use std::sync::{Arc, RwLock, atomic::{AtomicBool, Ordering::*}};
+pub(crate) use std::sync::{Arc, RwLock, atomic::{AtomicUsize, AtomicBool, Ordering::*}};
 pub(crate) use std::io::{stdout, Stdout};
 pub(crate) use std::error::Error;
 
@@ -38,6 +39,37 @@ pub type Perhaps<T> = Result<Option<T>, Box<dyn Error>>;
     };
 }
 
+pub trait Gettable<T> {
+    /// Returns current value
+    fn get (&self) -> T;
+}
+
+pub trait Mutable<T>: Gettable<T> {
+    /// Sets new value, returns old
+    fn set (&mut self, value: T) -> T;
+}
+
+pub trait InteriorMutable<T>: Gettable<T> {
+    /// Sets new value, returns old
+    fn set (&self, value: T) -> T;
+}
+
+impl Gettable<bool> for AtomicBool {
+    fn get (&self) -> bool { self.load(Relaxed) }
+}
+
+impl InteriorMutable<bool> for AtomicBool {
+    fn set (&self, value: bool) -> bool { self.swap(value, Relaxed) }
+}
+
+impl Gettable<usize> for AtomicUsize {
+    fn get (&self) -> usize { self.load(Relaxed) }
+}
+
+impl InteriorMutable<usize> for AtomicUsize {
+    fn set (&self, value: usize) -> usize { self.swap(value, Relaxed) }
+}
+
 pub use ::better_panic; pub(crate) use better_panic::{Settings, Verbosity};
 pub use ::palette; pub(crate) use ::palette::{*, convert::*, okhsl::*};