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refactor: flatten this too

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same mf who else 2026-02-21 04:40:35 +02:00
parent b4ebdb8ff8
commit 5d61cc6c5f
34 changed files with 3053 additions and 3167 deletions
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3
Cargo.toml
View file

@ -9,9 +9,6 @@ lto = false
resolver = "2" resolver = "2"
members = [ members = [
"./tengri", "./tengri",
"./input",
"./output",
"./tui",
"./proc", "./proc",
] ]

8
bacon.toml
View file

@ -14,26 +14,28 @@ l = "job:clippy"
[jobs.check] [jobs.check]
command = ["cargo", "check"] command = ["cargo", "check"]
need_stdout = false need_stdout = false
watch = ["core","dsl","editor","input","output","proc","tengri","tui"] watch = ["tengri"]
[jobs.clippy-all] [jobs.clippy-all]
command = ["cargo", "clippy"] command = ["cargo", "clippy"]
need_stdout = false need_stdout = false
watch = ["tek", "deps"] watch = ["tengri"]
[jobs.test] [jobs.test]
command = ["cargo", "test"] command = ["cargo", "test"]
need_stdout = true need_stdout = true
watch = ["tek", "deps"] watch = ["tengri"]
[jobs.doc] [jobs.doc]
command = ["cargo", "doc", "--no-deps"] command = ["cargo", "doc", "--no-deps"]
need_stdout = false need_stdout = false
watch = ["tengri"]
[jobs.doc-open] [jobs.doc-open]
command = ["cargo", "doc", "--no-deps", "--open"] command = ["cargo", "doc", "--no-deps", "--open"]
need_stdout = false need_stdout = false
on_success = "back" # so that we don't open the browser at each change on_success = "back" # so that we don't open the browser at each change
watch = ["tengri"]
[skin] [skin]
status_fg = 15 status_fg = 15

7
input/Cargo.lock generated
View file

@ -1,7 +0,0 @@
# This file is automatically @generated by Cargo.
# It is not intended for manual editing.
version = 4
[[package]]
name = "tengri_engine"
version = "0.2.0"

14
input/Cargo.toml
View file

@ -1,14 +0,0 @@
[package]
name = "tengri_input"
description = "UI metaframework, input layer."
version = { workspace = true }
edition = { workspace = true }
[lib]
path = "input.rs"
[dependencies]
dizzle = { path = "../../dizzle" }
[dev-dependencies]
tengri_tui = { path = "../tui" }

6
input/README.md
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@ -1,6 +0,0 @@
***tengri_input*** is where tengri's input handling is defined.
the following items are provided:
* `Input` trait, for defining for input sources
* `Handle` trait and `handle!` macro, for defining input handlers
* `Command` trait and the `command!` macro, for defining commands that inputs may result in

125
input/input.rs
View file

@ -1,125 +0,0 @@
#![feature(associated_type_defaults)]
#![feature(if_let_guard)]
pub(crate) use dizzle::*;
#[cfg(test)] mod input_test;
/// Event source
pub trait Input: Sized {
/// Type of input event
type Event;
/// Result of handling input
type Handled; // TODO: make this an Option<Box dyn Command<Self>> containing the undo
/// Currently handled event
fn event (&self) -> &Self::Event;
/// Whether component should exit
fn is_done (&self) -> bool;
/// Mark component as done
fn done (&self);
}
/// Define a trait an implement it for various mutation-enabled wrapper types. */
#[macro_export] macro_rules! flex_trait_mut (
($Trait:ident $(<$($A:ident:$T:ident),+>)? {
$(fn $fn:ident (&mut $self:ident $(, $arg:ident:$ty:ty)*) -> $ret:ty $body:block)*
})=>{
pub trait $Trait $(<$($A: $T),+>)? {
$(fn $fn (&mut $self $(,$arg:$ty)*) -> $ret $body)*
}
impl<$($($A: $T,)+)? _T_: $Trait $(<$($A),+>)?> $Trait $(<$($A),+>)? for &mut _T_ {
$(fn $fn (&mut $self $(,$arg:$ty)*) -> $ret { (*$self).$fn($($arg),*) })*
}
impl<$($($A: $T,)+)? _T_: $Trait $(<$($A),+>)?> $Trait $(<$($A),+>)? for Option<_T_> {
$(fn $fn (&mut $self $(,$arg:$ty)*) -> $ret {
if let Some(this) = $self { this.$fn($($arg),*) } else { Ok(None) }
})*
}
impl<$($($A: $T,)+)? _T_: $Trait $(<$($A),+>)?> $Trait $(<$($A),+>)? for ::std::sync::Mutex<_T_> {
$(fn $fn (&mut $self $(,$arg:$ty)*) -> $ret { $self.get_mut().unwrap().$fn($($arg),*) })*
}
impl<$($($A: $T,)+)? _T_: $Trait $(<$($A),+>)?> $Trait $(<$($A),+>)? for ::std::sync::Arc<::std::sync::Mutex<_T_>> {
$(fn $fn (&mut $self $(,$arg:$ty)*) -> $ret { $self.lock().unwrap().$fn($($arg),*) })*
}
impl<$($($A: $T,)+)? _T_: $Trait $(<$($A),+>)?> $Trait $(<$($A),+>)? for ::std::sync::RwLock<_T_> {
$(fn $fn (&mut $self $(,$arg:$ty)*) -> $ret { $self.write().unwrap().$fn($($arg),*) })*
}
impl<$($($A: $T,)+)? _T_: $Trait $(<$($A),+>)?> $Trait $(<$($A),+>)? for ::std::sync::Arc<::std::sync::RwLock<_T_>> {
$(fn $fn (&mut $self $(,$arg:$ty)*) -> $ret { $self.write().unwrap().$fn($($arg),*) })*
}
};
);
flex_trait_mut!(Handle <E: Input> {
fn handle (&mut self, _input: &E) -> Perhaps<E::Handled> {
Ok(None)
}
});
pub trait Command<S>: Send + Sync + Sized {
fn execute (&self, state: &mut S) -> Perhaps<Self>;
fn delegate <T> (&self, state: &mut S, wrap: impl Fn(Self)->T) -> Perhaps<T>
where Self: Sized
{
Ok(self.execute(state)?.map(wrap))
}
}
impl<S, T: Command<S>> Command<S> for Option<T> {
fn execute (&self, _: &mut S) -> Perhaps<Self> {
Ok(None)
}
fn delegate <U> (&self, _: &mut S, _: impl Fn(Self)->U) -> Perhaps<U>
where Self: Sized
{
Ok(None)
}
}
/// Implement [Command] for given `State` and `handler`
#[macro_export] macro_rules! command {
($(<$($l:lifetime),+>)?|$self:ident:$Command:ty,$state:ident:$State:ty|$handler:expr) => {
impl$(<$($l),+>)? ::tengri::input::Command<$State> for $Command {
fn execute (&$self, $state: &mut $State) -> Perhaps<Self> {
Ok($handler)
}
}
};
}
#[macro_export] macro_rules! def_command (($Command:ident: |$state:ident: $State:ty| {
$($Variant:ident$({$($arg:ident:$Arg:ty),+ $(,)?})?=>$body:expr),* $(,)?
})=>{
#[derive(Debug)]
pub enum $Command {
$($Variant $({ $($arg: $Arg),* })?),*
}
impl Command<$State> for $Command {
fn execute (&self, $state: &mut $State) -> Perhaps<Self> {
match self {
$(Self::$Variant $({ $($arg),* })? => $body,)*
_ => unimplemented!("Command<{}>: {self:?}", stringify!($State)),
}
}
}
});
/// Implement [Handle] for given `State` and `handler`.
#[macro_export] macro_rules! handle {
(|$self:ident:$State:ty,$input:ident|$handler:expr) => {
impl<E: Engine> ::tengri::input::Handle<E> for $State {
fn handle (&mut $self, $input: &E) -> Perhaps<E::Handled> {
$handler
}
}
};
($E:ty: |$self:ident:$State:ty,$input:ident|$handler:expr) => {
impl ::tengri::input::Handle<$E> for $State {
fn handle (&mut $self, $input: &$E) ->
Perhaps<<$E as ::tengri::input::Input>::Handled>
{
$handler
}
}
}
}

28
input/input_test.rs
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@ -1,28 +0,0 @@
use crate::*;
#[test] fn test_stub_input () -> Usually<()> {
use crate::*;
struct TestInput(bool);
enum TestEvent { Test1 }
impl Input for TestInput {
type Event = TestEvent;
type Handled = ();
fn event (&self) -> &Self::Event {
&TestEvent::Test1
}
fn is_done (&self) -> bool {
self.0
}
fn done (&self) {}
}
let _ = TestInput(true).event();
assert!(TestInput(true).is_done());
assert!(!TestInput(false).is_done());
Ok(())
}
//#[cfg(all(test, feature = "dsl"))] #[test] fn test_dsl_keymap () -> Usually<()> {
//let _keymap = CstIter::new("");
//Ok(())
//}

351
output/.scratch.rs
View file

@ -1,351 +0,0 @@
///////////////////////////////////////////////////////////////////////////////
///// The syntagm `(when :condition :content)` corresponds to a [When] layout element.
//impl<S, A> FromDsl<S> for When<A> where bool: FromDsl<S>, A: FromDsl<S> {
//fn try_provide (state: &S, source: &DslVal<impl DslStr, impl DslExpr>) -> Perhaps<Self> {
//source.exp_match("when", |_, tail|Ok(Some(Self(
//FromDsl::<S>::provide(state,
//tail.nth(0, ||"no condition".into())?, ||"no condition".into())?,
//FromDsl::<S>::provide(state,
//tail.nth(1, ||"no content".into())?, ||"no content".into())?,
//))))
//}
//}
///// The syntagm `(either :condition :content1 :content2)` corresponds to an [Either] layout element.
//impl<S, A, B> FromDsl<S> for Either<A, B> where S: Eval<Ast, bool> + Eval<Ast, A> + Eval<Ast, B> {
//fn try_provide (state: &S, source: &DslVal<impl DslStr, impl DslExpr>) -> Perhaps<Self> {
//source.exp_match("either", |_, tail|Ok(Some(Self(
//state.eval(tail.nth(0, ||"no condition")?, ||"no condition")?,
//state.eval(tail.nth(1, ||"no content 1")?, ||"no content 1")?,
//state.eval(tail.nth(2, ||"no content 1")?, ||"no content 2")?,
//))))
//}
//}
///// The syntagm `(align/* :content)` corresponds to an [Align] layout element,
///// where `*` specifies the direction of the alignment.
//impl<S, A> FromDsl<S> for Align<A> where S: Eval<Option<Ast>, A> {
//fn try_provide (state: &S, source: &DslVal<impl DslStr, impl DslExpr>) -> Perhaps<Self> {
//source.exp_match("align/", |head, tail|Ok(Some(match head {
//"c" => Self::c(state.eval(tail.nth(0, ||"no content")?, ||"no content")),
//"x" => Self::x(state.eval(tail.nth(0, ||"no content")?, ||"no content")),
//"y" => Self::y(state.eval(tail.nth(0, ||"no content")?, ||"no content")),
//"n" => Self::n(state.eval(tail.nth(0, ||"no content")?, ||"no content")),
//"s" => Self::s(state.eval(tail.nth(0, ||"no content")?, ||"no content")),
//"e" => Self::e(state.eval(tail.nth(0, ||"no content")?, ||"no content")),
//"w" => Self::w(state.eval(tail.nth(0, ||"no content")?, ||"no content")),
//"nw" => Self::nw(state.eval(tail.nth(0, ||"no content")?, ||"no content")),
//"ne" => Self::ne(state.eval(tail.nth(0, ||"no content")?, ||"no content")),
//"sw" => Self::sw(state.eval(tail.nth(0, ||"no content")?, ||"no content")),
//"se" => Self::se(state.eval(tail.nth(0, ||"no content")?, ||"no content")),
//_ => return Err("invalid align variant".into())
//})))
//}
//}
///// The syntagm `(bsp/* :content1 :content2)` corresponds to a [Bsp] layout element,
///// where `*` specifies the direction of the split.
//impl<S, A, B> FromDsl<S> for Bsp<A, B> where S: Eval<Option<Ast>, A> + Eval<Option<Ast>, B> {
//fn try_provide (state: &S, source: &DslVal<impl DslStr, impl DslExpr>) -> Perhaps<Self> {
//source.exp_match("bsp/", |head, tail|Ok(Some(match head {
//"n" => Self::n(tail.nth(0, ||"no content 1"), tail.nth(1, ||"no content 2")),
//"s" => Self::s(tail.nth(0, ||"no content 1"), tail.nth(1, ||"no content 2")),
//"e" => Self::e(tail.nth(0, ||"no content 1"), tail.nth(1, ||"no content 2")),
//"w" => Self::w(tail.nth(0, ||"no content 1"), tail.nth(1, ||"no content 2")),
//"a" => Self::a(tail.nth(0, ||"no content 1"), tail.nth(1, ||"no content 2")),
//"b" => Self::b(tail.nth(0, ||"no content 1"), tail.nth(1, ||"no content 2")),
//_ => return Ok(None),
//})))
//}
//}
//#[cfg(feature = "dsl")] take!($Enum<A>, A|state, words|Ok(
//if let Some(Token { value: Key(k), .. }) = words.peek() {
//let mut base = words.clone();
//let content = state.give_or_fail(words, ||format!("{k}: no content"))?;
//return Ok(Some(match words.next() {
//Some(Token{value: Key($x),..}) => Self::x(content),
//Some(Token{value: Key($y),..}) => Self::y(content),
//Some(Token{value: Key($xy),..}) => Self::XY(content),
//_ => unreachable!()
//}))
//} else {
//None
//}));
//#[cfg(feature = "dsl")] take!($Enum<U, A>, U, A|state, words|Ok(
//if let Some(Token { value: Key($x|$y|$xy), .. }) = words.peek() {
//let mut base = words.clone();
//Some(match words.next() {
//Some(Token { value: Key($x), .. }) => Self::x(
//state.give_or_fail(words, ||"x: no unit")?,
//state.give_or_fail(words, ||"x: no content")?,
//),
//Some(Token { value: Key($y), .. }) => Self::y(
//state.give_or_fail(words, ||"y: no unit")?,
//state.give_or_fail(words, ||"y: no content")?,
//),
//Some(Token { value: Key($x), .. }) => Self::XY(
//state.give_or_fail(words, ||"xy: no unit x")?,
//state.give_or_fail(words, ||"xy: no unit y")?,
//state.give_or_fail(words, ||"xy: no content")?
//),
//_ => unreachable!(),
//})
//} else {
//None
//}));
//if let Exp(_, exp) = source.value() {
//let mut rest = exp.clone();
//return Ok(Some(match rest.next().as_ref().and_then(|x|x.key()) {
//Some("bsp/n") => Self::n(
//state.eval(rest.next(), ||"bsp/n: no content 1")?,
//state.eval(rest.next(), ||"bsp/n: no content 2")?,
//),
//Some("bsp/s") => Self::s(
//state.eval(rest.next(), ||"bsp/s: no content 1")?,
//state.eval(rest.next(), ||"bsp/s: no content 2")?,
//),
//Some("bsp/e") => Self::e(
//state.eval(rest.next(), ||"bsp/e: no content 1")?,
//state.eval(rest.next(), ||"bsp/e: no content 2")?,
//),
//Some("bsp/w") => Self::w(
//state.eval(rest.next(), ||"bsp/w: no content 1")?,
//state.eval(rest.next(), ||"bsp/w: no content 2")?,
//),
//Some("bsp/a") => Self::a(
//state.eval(rest.next(), ||"bsp/a: no content 1")?,
//state.eval(rest.next(), ||"bsp/a: no content 2")?,
//),
//Some("bsp/b") => Self::b(
//state.eval(rest.next(), ||"bsp/b: no content 1")?,
//state.eval(rest.next(), ||"bsp/b: no content 2")?,
//),
//_ => return Ok(None),
//}))
//}
//Ok(None)
//if let Exp(_, source) = source.value() {
//let mut rest = source.clone();
//return Ok(Some(match rest.next().as_ref().and_then(|x|x.key()) {
//Some("align/c") => Self::c(state.eval(rest.next(), ||"align/c: no content")?),
//Some("align/x") => Self::x(state.eval(rest.next(), ||"align/x: no content")?),
//Some("align/y") => Self::y(state.eval(rest.next(), ||"align/y: no content")?),
//Some("align/n") => Self::n(state.eval(rest.next(), ||"align/n: no content")?),
//Some("align/s") => Self::s(state.eval(rest.next(), ||"align/s: no content")?),
//Some("align/e") => Self::e(state.eval(rest.next(), ||"align/e: no content")?),
//Some("align/w") => Self::w(state.eval(rest.next(), ||"align/w: no content")?),
//Some("align/nw") => Self::nw(state.eval(rest.next(), ||"align/nw: no content")?),
//Some("align/ne") => Self::ne(state.eval(rest.next(), ||"align/ne: no content")?),
//Some("align/sw") => Self::sw(state.eval(rest.next(), ||"align/sw: no content")?),
//Some("align/se") => Self::se(state.eval(rest.next(), ||"align/se: no content")?),
//_ => return Ok(None),
//}))
//}
//Ok(None)
//Ok(match source.exp_head().and_then(|e|e.key()) {
//Some("either") => Some(Self(
//source.exp_tail().and_then(|t|t.get(0)).map(|x|state.eval(x, ||"when: no condition"))?,
//source.exp_tail().and_then(|t|t.get(1)).map(|x|state.eval(x, ||"when: no content 1"))?,
//source.exp_tail().and_then(|t|t.get(2)).map(|x|state.eval(x, ||"when: no content 2"))?,
//)),
//_ => None
//})
//if let Exp(_, mut exp) = source.value()
//&& let Some(Ast(Key(id))) = exp.peek() && *id == *"either" {
//let _ = exp.next();
//return Ok(Some(Self(
//state.eval(exp.next().unwrap(), ||"either: no condition")?,
//state.eval(exp.next().unwrap(), ||"either: no content 1")?,
//state.eval(exp.next().unwrap(), ||"either: no content 2")?,
//)))
//}
//Ok(None)
//Ok(match source.exp_head().and_then(|e|e.key()) {
//Some("when") => Some(Self(
//source.exp_tail().and_then(|t|t.get(0)).map(|x|state.eval(x, ||"when: no condition"))?,
//source.exp_tail().and_then(|t|t.get(1)).map(|x|state.eval(x, ||"when: no content"))?,
//)),
//_ => None
//})
//use crate::*;
//use Direction::*;
//pub struct Stack<'x, E, F1> {
//__: PhantomData<&'x (E, F1)>,
//direction: Direction,
//callback: F1
//}
//impl<'x, E, F1> Stack<'x, E, F1> {
//pub fn new (direction: Direction, callback: F1) -> Self {
//Self { direction, callback, __: Default::default(), }
//}
//pub fn above (callback: F1) -> Self {
//Self::new(Above, callback)
//}
//pub fn below (callback: F1) -> Self {
//Self::new(Below, callback)
//}
//pub fn north (callback: F1) -> Self {
//Self::new(North, callback)
//}
//pub fn south (callback: F1) -> Self {
//Self::new(South, callback)
//}
//pub fn east (callback: F1) -> Self {
//Self::new(East, callback)
//}
//pub fn west (callback: F1) -> Self {
//Self::new(West, callback)
//}
//}
//impl<'x, E: Out, F1: Fn(&mut dyn FnMut(&dyn Layout<E>))> Layout<E> for Stack<'x, E, F1> {
//fn layout (&self, to: E::Area) -> E::Area {
//let state = StackLayoutState::<E>::new(self.direction, to);
//(self.callback)(&mut |component: &dyn Layout<E>|{
//let StackLayoutState { x, y, w_remaining, h_remaining, .. } = *state.borrow();
//let [_, _, w, h] = component.layout([x, y, w_remaining, h_remaining].into()).xywh();
//state.borrow_mut().grow(w, h);
//});
//let StackLayoutState { w_used, h_used, .. } = *state.borrow();
//match self.direction {
//North | West => { todo!() },
//South | East => { [to.x(), to.y(), w_used, h_used].into() },
//_ => unreachable!(),
//}
//}
//}
//impl<'x, E: Out, F1: Fn(&mut dyn FnMut(&dyn Draw<E>))> Draw<E> for Stack<'x, E, F1> {
//fn draw (&self, to: &mut E) {
//let state = StackLayoutState::<E>::new(self.direction, to.area());
//let to = Rc::new(RefCell::new(to));
//(self.callback)(&mut |component: &dyn Draw<E>|{
//let StackLayoutState { x, y, w_remaining, h_remaining, .. } = *state.borrow();
//let layout = component.layout([x, y, w_remaining, h_remaining].into());
//state.borrow_mut().grow(layout.w(), layout.h());
//to.borrow_mut().place_at(layout, component);
//});
//}
//}
//#[derive(Copy, Clone)]
//struct StackLayoutState<E: Out> {
//direction: Direction,
//x: E::Unit,
//y: E::Unit,
//w_used: E::Unit,
//h_used: E::Unit,
//w_remaining: E::Unit,
//h_remaining: E::Unit,
//}
//impl<E: Out> StackLayoutState<E> {
//fn new (direction: Direction, area: E::Area) -> std::rc::Rc<std::cell::RefCell<Self>> {
//let [x, y, w_remaining, h_remaining] = area.xywh();
//std::rc::Rc::new(std::cell::RefCell::new(Self {
//direction,
//x, y, w_remaining, h_remaining,
//w_used: E::Unit::zero(), h_used: E::Unit::zero()
//}))
//}
//fn grow (&mut self, w: E::Unit, h: E::Unit) -> &mut Self {
//match self.direction {
//South => { self.y = self.y.plus(h);
//self.h_used = self.h_used.plus(h);
//self.h_remaining = self.h_remaining.minus(h);
//self.w_used = self.w_used.max(w); },
//East => { self.x = self.x.plus(w);
//self.w_used = self.w_used.plus(w);
//self.w_remaining = self.w_remaining.minus(w);
//self.h_used = self.h_used.max(h); },
//North | West => { todo!() },
//Above | Below => {},
//};
//self
//}
//fn area_remaining (&self) -> E::Area {
//[self.x, self.y, self.w_remaining, self.h_remaining].into()
//}
//}
////pub struct Stack<'a, E, F1> {
////__: PhantomData<&'a (E, F1)>,
////direction: Direction,
////callback: F1
////}
////impl<'a, E, F1> Stack<'a, E, F1> where
////E: Out, F1: Fn(&mut dyn FnMut(&'a dyn Draw<E>)) + Send + Sync,
////{
////pub fn north (callback: F1) -> Self { Self::new(North, callback) }
////pub fn south (callback: F1) -> Self { Self::new(South, callback) }
////pub fn east (callback: F1) -> Self { Self::new(East, callback) }
////pub fn west (callback: F1) -> Self { Self::new(West, callback) }
////pub fn above (callback: F1) -> Self { Self::new(Above, callback) }
////pub fn below (callback: F1) -> Self { Self::new(Below, callback) }
////pub fn new (direction: Direction, callback: F1) -> Self {
////Self { direction, callback, __: Default::default(), }
////}
////}
////impl<'a, E, F1> Draw<E> for Stack<'a, E, F1> where
////E: Out, F1: Fn(&mut dyn FnMut(&'a dyn Draw<E>)) + Send + Sync,
////{
////fn layout (&self, to: E::Area) -> E::Area {
////let state = StackLayoutState::<E>::new(self.direction, to);
////let mut adder = {
////let state = state.clone();
////move|component: &dyn Draw<E>|{
////let [w, h] = component.layout(state.borrow().area_remaining()).wh();
////state.borrow_mut().grow(w, h);
////}
////};
////(self.callback)(&mut adder);
////let StackLayoutState { w_used, h_used, .. } = *state.borrow();
////match self.direction {
////North | West => { todo!() },
////South | East => { [to.x(), to.y(), w_used, h_used].into() },
////Above | Below => { [to.x(), to.y(), to.w(), to.h()].into() },
////}
////}
////fn draw (&self, to: &mut E) {
////let state = StackLayoutState::<E>::new(self.direction, to.area());
////let mut adder = {
////let state = state.clone();
////move|component: &dyn Draw<E>|{
////let [x, y, w, h] = component.layout(state.borrow().area_remaining()).xywh();
////state.borrow_mut().grow(w, h);
////to.place_at([x, y, w, h].into(), component);
////}
////};
////(self.callback)(&mut adder);
////}
////}
//[>Stack::down(|add|{
//let mut i = 0;
//for (_, name) in self.dirs.iter() {
//if i >= self.scroll {
//add(&Tui::bold(i == self.index, name.as_str()))?;
//}
//i += 1;
//}
//for (_, name) in self.files.iter() {
//if i >= self.scroll {
//add(&Tui::bold(i == self.index, name.as_str()))?;
//}
//i += 1;
//}
//add(&format!("{}/{i}", self.index))?;
//Ok(())
//}));*/
//#[test] fn test_iter_map () {
//struct Foo;
//impl<T: Out> Content<T> for Foo {}
//fn _make_map <T: Out, U: Content<T> + Send + Sync> (data: &Vec<U>) -> impl Draw<T> {
//Map::new(||data.iter(), |_foo, _index|{})
//}
//let _data = vec![Foo, Foo, Foo];
////let map = make_map(&data);
//}

14
output/Cargo.lock generated
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@ -1,14 +0,0 @@
# This file is automatically @generated by Cargo.
# It is not intended for manual editing.
version = 4
[[package]]
name = "tengri_engine"
version = "0.2.0"
[[package]]
name = "tengri_layout"
version = "0.2.0"
dependencies = [
"tengri_engine",
]

21
output/Cargo.toml
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@ -1,21 +0,0 @@
[package]
name = "tengri_output"
description = "UI metaframework, output layer."
version = { workspace = true }
edition = { workspace = true }
[features]
bumpalo = [ "dep:bumpalo" ]
dsl = []
[dependencies]
atomic_float = { workspace = true }
bumpalo = { workspace = true, optional = true }
dizzle = { path = "../../dizzle" }
quanta = { workspace = true }
[dev-dependencies]
tengri = { path = "../tengri", features = [ "dsl", "tui" ] }
tengri_tui = { path = "../tui" }
proptest = { workspace = true }
proptest-derive = { workspace = true }

20
output/README.md
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@ -1,20 +0,0 @@
***tengri_output*** is an abstract interface layout framework.
it expresses the following notions:
* [**space:**](./src/space.rs) `Direction`, `Coordinate`, `Area`, `Size`, `Measure`
* [**output:**](./src/output.rs) `Out`, `Draw`, `Content`
* the layout operators are generic over `Draw` and/or `Content`
* the traits `Draw` and `Content` are generic over `Out`
* implement `Out` to bring a layout to a new backend:
[see `TuiOut` in `tengri_tui`](../tui/src/tui_engine/tui_output.rs)
* [**layout:**](./src/layout.rs)
* conditionals: `When`, `Either`
* iteration: `Map`
* concatenation: `Bsp`
* positioning: `Align`, `Push`, `Pull`
* sizing: `Fill`, `Fixed`, `Expand`, `Shrink`, `Min`, `Max`
* implement custom components (that may be backend-dependent):
[see `tui_content` in `tengri_tui`](../tui/src/tui_content)

7
output/proptest-regressions/area.txt
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@ -1,7 +0,0 @@
# Seeds for failure cases proptest has generated in the past. It is
# automatically read and these particular cases re-run before any
# novel cases are generated.
#
# It is recommended to check this file in to source control so that
# everyone who runs the test benefits from these saved cases.
cc d2cd65ec39a1bf43c14bb2d3196c7e84ba854411360e570f06dd7ede62b0fd61 # shrinks to x = 0, y = 43998, w = 0, h = 43076, a = 0, b = 0

7
output/proptest-regressions/direction.txt
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@ -1,7 +0,0 @@
# Seeds for failure cases proptest has generated in the past. It is
# automatically read and these particular cases re-run before any
# novel cases are generated.
#
# It is recommended to check this file in to source control so that
# everyone who runs the test benefits from these saved cases.
cc 5b236150b286e479089d5bf6accc8ffbc3c0b0a1f955682af1987f342930d31e # shrinks to x = 0, y = 0, w = 0, h = 0, a = 1

10
output/proptest-regressions/op_transform.txt
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@ -1,10 +0,0 @@
# Seeds for failure cases proptest has generated in the past. It is
# automatically read and these particular cases re-run before any
# novel cases are generated.
#
# It is recommended to check this file in to source control so that
# everyone who runs the test benefits from these saved cases.
cc b05b448ca4eb29304cae506927639494cae99a9e1ab40c58ac9dcb70d1ea1298 # shrinks to op_x = Some(0), op_y = None, content = "", x = 0, y = 46377, w = 0, h = 38318
cc efdb7136c68396fa7c632cc6d3b304545ada1ba134269278f890639559a17575 # shrinks to op_x = Some(0), op_y = Some(32768), content = "", x = 0, y = 0, w = 0, h = 0
cc f6d43c39db04f4c0112fe998ef68cff0a4454cd9791775a3014cc81997fbadf4 # shrinks to op_x = Some(10076), op_y = None, content = "", x = 60498, y = 0, w = 0, h = 0
cc 3cabc97f3fa3a83fd5f8cf2c619ed213c2be5e9b1cb13e5178bde87dd838e2f4 # shrinks to op_x = Some(3924), op_y = None, content = "", x = 63574, y = 0, w = 0, h = 0

293
output/src/lib.rs
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@ -1,293 +0,0 @@
#![feature(step_trait)]
#![feature(type_alias_impl_trait)]
#![feature(impl_trait_in_assoc_type)]
#![feature(const_precise_live_drops)]
#![feature(type_changing_struct_update)]
#![feature(anonymous_lifetime_in_impl_trait)]
#![feature(const_option_ops)]
#![feature(const_trait_impl)]
#![feature(const_default)]
#![feature(trait_alias)]
//#![feature(non_lifetime_binders)]
pub(crate) use self::Direction::*;
pub(crate) use std::fmt::{Debug, Display};
pub(crate) use std::ops::{Add, Sub, Mul, Div};
pub(crate) use std::sync::{Arc, RwLock, atomic::{AtomicUsize, Ordering::Relaxed}};
pub(crate) use std::marker::PhantomData;
pub(crate) use dizzle::*;
//pub(crate) use quanta::Clock;
pub(crate) use atomic_float::AtomicF64;
// Define macros first, so that private macros are available in private modules:
/// Clear a pre-allocated buffer, then write into it.
#[macro_export] macro_rules! rewrite {
($buf:ident, $($rest:tt)*) => { |$buf,_,_|{ $buf.clear(); write!($buf, $($rest)*) } }
}
/// FIXME: This macro should be some variant of `eval`, too.
/// But taking into account the different signatures (resolving them into 1?)
#[cfg(feature = "dsl")] #[macro_export] macro_rules! draw {
($State:ident: $Output:ident: $layers:expr) => {
impl Draw<$Output> for $State {
fn draw (&self, to: &mut $Output) {
for layer in $layers { layer(self, to) }
}
}
}
}
/// FIXME: This is generic: should be called `eval` and be part of [dizzle].
#[cfg(feature = "dsl")] #[macro_export] macro_rules! view {
($State:ident: $Output:ident: $namespaces:expr) => {
impl View<$Output, ()> for $State {
fn view_expr <'a> (&'a self, to: &mut $Output, expr: &'a impl Expression) -> Usually<()> {
for namespace in $namespaces { if namespace(self, to, expr)? { return Ok(()) } }
Err(format!("{}::<{}, ()>::view_expr: unexpected: {expr:?}",
stringify! { $State },
stringify! { $Output }).into())
}
}
}
}
/// Stack things on top of each other,
#[macro_export] macro_rules! lay (($($expr:expr),* $(,)?) => {{ let bsp = (); $(let bsp = Bsp::b(bsp, $expr);)*; bsp }});
/// Stack southward.
#[macro_export] macro_rules! col (($($expr:expr),* $(,)?) => {{ let bsp = (); $(let bsp = Bsp::s(bsp, $expr);)*; bsp }});
/// Stack northward.
#[macro_export] macro_rules! col_up (($($expr:expr),* $(,)?) => {{ let bsp = (); $(let bsp = Bsp::n(bsp, $expr);)*; bsp }});
/// Stack eastward.
#[macro_export] macro_rules! row (($($expr:expr),* $(,)?) => {{ let bsp = (); $(let bsp = Bsp::e(bsp, $expr);)*; bsp }});
/// Define layout operation.
macro_rules! layout_op_xy (
// Variant for layout ops that take no coordinates
(0: $T: ident) => {
impl<A> $T<A> {
#[inline] pub const fn inner (&self) -> &A {
match self { Self::X(c) | Self::Y(c) | Self::XY(c) => c }
}
}
impl<O: Out, T: Content<O>> Draw<O> for $T<T> {
fn draw (&self, to: &mut O) { Bounded(self.layout(to.area()), self.inner()).draw(to) }
}
};
// Variant for layout ops that take one coordinate
(1: $T: ident) => {
impl<U, A> $T<U, A> {
#[inline] pub const fn inner (&self) -> &A {
match self { Self::X(_, c) | Self::Y(_, c) | Self::XY(_, _, c) => c, }
}
}
impl<O: Out, T: Content<O>> Draw<O> for $T<O::Unit, T> {
fn draw (&self, to: &mut O) { Bounded(self.layout(to.area()), self.inner()).draw(to) }
}
impl<U: Coord, A> $T<U, A> {
#[inline] pub fn dx (&self) -> U {
match self { Self::X(x, _) | Self::XY(x, ..) => *x, _ => 0.into() }
}
#[inline] pub fn dy (&self) -> U {
match self { Self::Y(y, _) | Self::XY(y, ..) => *y, _ => 0.into() }
}
}
};
(1 opt: $T: ident) => {
impl<U, A> $T<U, A> {
#[inline] pub const fn inner (&self) -> &A {
match self { Self::X(_, c) | Self::Y(_, c) | Self::XY(_, _, c) => c, }
}
}
impl<O: Out, T: Content<O>> Draw<O> for $T<O::Unit, T> {
fn draw (&self, to: &mut O) { Bounded(self.layout(to.area()), self.inner()).draw(to) }
}
impl<U: Coord, A> $T<U, A> {
#[inline] pub const fn dx (&self) -> Option<U> {
match self { Self::X(x, _) | Self::XY(x, ..) => Some(*x), _ => None }
}
#[inline] pub const fn dy (&self) -> Option<U> {
match self { Self::Y(y, _) | Self::XY(y, ..) => Some(*y), _ => None }
}
}
};
);
// Implement layout op that increments X and/or Y by fixed amount.
macro_rules! push_pull(($T:ident: $method: ident)=>{
layout_op_xy!(1: $T);
impl<O: Out, T: Layout<O>> Layout<O> for $T<O::Unit, T> {
fn layout_x (&self, area: XYWH<O::Unit>) -> O::Unit { area.x().$method(self.dx()) }
fn layout_y (&self, area: XYWH<O::Unit>) -> O::Unit { area.y().$method(self.dy()) }
}
});
macro_rules! impl_map_direction (($name:ident, $axis:ident, $align:ident)=>{
impl<'a, O, A, B, I, F> Map<
O, A, Push<O::Unit, Align<Fixed<O::Unit, Fill<B>>>>, I, F, fn(A, usize)->B
> where
O: Out,
B: Draw<O>,
I: Iterator<Item = A> + Send + Sync + 'a,
F: Fn() -> I + Send + Sync + 'a
{
pub const fn $name (
size: O::Unit,
get_iter: F,
get_item: impl Fn(A, usize)->B + Send + Sync
) -> Map<
O, A,
Push<O::Unit, Align<Fixed<O::Unit, B>>>,
I, F,
impl Fn(A, usize)->Push<O::Unit, Align<Fixed<O::Unit, B>>> + Send + Sync
> {
Map {
__: PhantomData,
get_iter,
get_item: move |item: A, index: usize|{
// FIXME: multiply
let mut push: O::Unit = O::Unit::from(0u16);
for _ in 0..index {
push = push + size;
}
Push::$axis(push, Align::$align(Fixed::$axis(size, get_item(item, index))))
}
}
}
}
});
mod out_traits; pub use self::out_traits::*;
mod out_structs; pub use self::out_structs::*;
mod out_impls; pub use self::out_impls::*;
#[cfg(test)] mod out_tests;
#[cfg(feature = "dsl")]
pub fn evaluate_output_expression <'a, O: Out + 'a, S> (
state: &S, output: &mut O, expr: &'a impl Expression
) -> Usually<bool> where
S: View<O, ()>
+ for<'b>Namespace<'b, bool>
+ for<'b>Namespace<'b, O::Unit>
{
// First element of expression is used for dispatch.
// Dispatch is proto-namespaced using separator character
let head = expr.head()?;
let mut frags = head.src()?.unwrap_or_default().split("/");
// The rest of the tokens in the expr are arguments.
// Their meanings depend on the dispatched operation
let args = expr.tail();
let arg0 = args.head();
let tail0 = args.tail();
let arg1 = tail0.head();
let tail1 = tail0.tail();
let arg2 = tail1.head();
// And we also have to do the above binding dance
// so that the Perhaps<token>s remain in scope.
match frags.next() {
Some("when") => output.place(&When::new(
state.namespace(arg0?)?.unwrap(),
Thunk::new(move|output: &mut O|state.view(output, &arg1).unwrap())
)),
Some("either") => output.place(&Either::new(
state.namespace(arg0?)?.unwrap(),
Thunk::new(move|output: &mut O|state.view(output, &arg1).unwrap()),
Thunk::new(move|output: &mut O|state.view(output, &arg2).unwrap())
)),
Some("bsp") => output.place(&{
let a = Thunk::new(move|output: &mut O|state.view(output, &arg0).unwrap());
let b = Thunk::new(move|output: &mut O|state.view(output, &arg1).unwrap());
match frags.next() {
Some("n") => Bsp::n(a, b),
Some("s") => Bsp::s(a, b),
Some("e") => Bsp::e(a, b),
Some("w") => Bsp::w(a, b),
Some("a") => Bsp::a(a, b),
Some("b") => Bsp::b(a, b),
frag => unimplemented!("bsp/{frag:?}")
}
}),
Some("align") => output.place(&{
let a = Thunk::new(move|output: &mut O|state.view(output, &arg0).unwrap());
match frags.next() {
Some("n") => Align::n(a),
Some("s") => Align::s(a),
Some("e") => Align::e(a),
Some("w") => Align::w(a),
Some("x") => Align::x(a),
Some("y") => Align::y(a),
Some("c") => Align::c(a),
frag => unimplemented!("align/{frag:?}")
}
}),
Some("fill") => output.place(&{
let a = Thunk::new(move|output: &mut O|state.view(output, &arg0).unwrap());
match frags.next() {
Some("xy") | None => Fill::XY(a),
Some("x") => Fill::X(a),
Some("y") => Fill::Y(a),
frag => unimplemented!("fill/{frag:?}")
}
}),
Some("fixed") => output.place(&{
let axis = frags.next();
let arg = match axis { Some("x") | Some("y") => arg1, Some("xy") | None => arg2, _ => panic!("fixed: unsupported axis {axis:?}") };
let cb = Thunk::new(move|output: &mut O|state.view(output, &arg).unwrap());
match axis {
Some("xy") | None => Fixed::XY(state.namespace(arg0?)?.unwrap(), state.namespace(arg1?)?.unwrap(), cb),
Some("x") => Fixed::X(state.namespace(arg0?)?.unwrap(), cb),
Some("y") => Fixed::Y(state.namespace(arg0?)?.unwrap(), cb),
frag => unimplemented!("fixed/{frag:?} ({expr:?}) ({head:?}) ({:?})",
head.src()?.unwrap_or_default().split("/").next())
}
}),
Some("min") => output.place(&{
let axis = frags.next();
let arg = match axis { Some("x") | Some("y") => arg1, Some("xy") | None => arg2, _ => panic!("fixed: unsupported axis {axis:?}") };
let cb = Thunk::new(move|output: &mut O|state.view(output, &arg).unwrap());
match axis {
Some("xy") | None => Min::XY(state.namespace(arg0?)?.unwrap(), state.namespace(arg1?)?.unwrap(), cb),
Some("x") => Min::X(state.namespace(arg0?)?.unwrap(), cb),
Some("y") => Min::Y(state.namespace(arg0?)?.unwrap(), cb),
frag => unimplemented!("min/{frag:?}")
}
}),
Some("max") => output.place(&{
let axis = frags.next();
let arg = match axis { Some("x") | Some("y") => arg1, Some("xy") | None => arg2, _ => panic!("fixed: unsupported axis {axis:?}") };
let cb = Thunk::new(move|output: &mut O|state.view(output, &arg).unwrap());
match axis {
Some("xy") | None => Max::XY(state.namespace(arg0?)?.unwrap(), state.namespace(arg1?)?.unwrap(), cb),
Some("x") => Max::X(state.namespace(arg0?)?.unwrap(), cb),
Some("y") => Max::Y(state.namespace(arg0?)?.unwrap(), cb),
frag => unimplemented!("max/{frag:?}")
}
}),
Some("push") => output.place(&{
let axis = frags.next();
let arg = match axis { Some("x") | Some("y") => arg1, Some("xy") | None => arg2, _ => panic!("fixed: unsupported axis {axis:?}") };
let cb = Thunk::new(move|output: &mut O|state.view(output, &arg).unwrap());
match axis {
Some("xy") | None => Push::XY(state.namespace(arg0?)?.unwrap(), state.namespace(arg1?)?.unwrap(), cb),
Some("x") => Push::X(state.namespace(arg0?)?.unwrap(), cb),
Some("y") => Push::Y(state.namespace(arg0?)?.unwrap(), cb),
frag => unimplemented!("push/{frag:?}")
}
}),
_ => return Ok(false)
};
Ok(true)
}

132
output/src/out_tests.rs
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@ -1,132 +0,0 @@
use proptest::{prelude::*, option::of};
use proptest_derive::Arbitrary;
use crate::*;
#[test] fn test_area () {
assert_eq!(XYWH(10u16, 10, 20, 20).center(), XY(20, 20));
}
proptest! {
#[test] fn proptest_direction (
d in prop_oneof![
Just(North), Just(South),
Just(East), Just(West),
Just(Above), Just(Below)
],
x in u16::MIN..u16::MAX,
y in u16::MIN..u16::MAX,
w in u16::MIN..u16::MAX,
h in u16::MIN..u16::MAX,
a in u16::MIN..u16::MAX,
) {
let _ = d.split_fixed(XYWH(x, y, w, h), a);
}
}
proptest! {
#[test] fn proptest_area (
x in u16::MIN..u16::MAX,
y in u16::MIN..u16::MAX,
w in u16::MIN..u16::MAX,
h in u16::MIN..u16::MAX,
a in u16::MIN..u16::MAX,
b in u16::MIN..u16::MAX,
) {
let _: XYWH<u16> = XYWH::zero();
//let _: XYWH<u16> = XYWH::from_position([a, b]);
//let _: XYWH<u16> = XYWH::from_size([a, b]);
let area: XYWH<u16> = XYWH(x, y, w, h);
//let _ = area.expect_min(a, b);
let _ = area.xy();
let _ = area.wh();
//let _ = area.xywh();
let _ = area.clipped_h(a);
let _ = area.clipped_w(b);
let _ = area.clipped(WH(a, b));
//let _ = area.set_w(a);
//let _ = area.set_h(b);
let _ = area.x2();
let _ = area.y2();
let _ = area.lrtb();
let _ = area.center();
let _ = area.centered();
let _ = area.centered_x(a);
let _ = area.centered_y(b);
let _ = area.centered_xy([a, b]);
}
}
proptest! {
#[test] fn proptest_size (
x in u16::MIN..u16::MAX,
y in u16::MIN..u16::MAX,
a in u16::MIN..u16::MAX,
b in u16::MIN..u16::MAX,
) {
let size = WH(x, y);
let _ = size.w();
let _ = size.h();
let _ = size.wh();
let _ = size.clip_w(a);
let _ = size.clip_h(b);
//let _ = size.expect_min(a, b);
//let _ = size.to_area_pos();
//let _ = size.to_area_size();
}
}
macro_rules! test_op_transform {
($fn:ident, $Op:ident) => {
proptest! {
#[test] fn $fn (
op_x in of(u16::MIN..u16::MAX),
op_y in of(u16::MIN..u16::MAX),
content in "\\PC*",
x in u16::MIN..u16::MAX,
y in u16::MIN..u16::MAX,
w in u16::MIN..u16::MAX,
h in u16::MIN..u16::MAX,
) {
if let Some(op) = match (op_x, op_y) {
(Some(x), Some(y)) => Some($Op::XY(x, y, content)),
(Some(x), None) => Some($Op::X(x, content)),
(None, Some(y)) => Some($Op::Y(y, content)),
_ => None
} {
//assert_eq!(Content::layout(&op, [x, y, w, h]),
//Draw::layout(&op, [x, y, w, h]));
}
}
}
}
}
test_op_transform!(proptest_op_fixed, Fixed);
test_op_transform!(proptest_op_min, Min);
test_op_transform!(proptest_op_max, Max);
test_op_transform!(proptest_op_push, Push);
test_op_transform!(proptest_op_pull, Pull);
test_op_transform!(proptest_op_shrink, Shrink);
test_op_transform!(proptest_op_expand, Expand);
test_op_transform!(proptest_op_padding, Pad);
proptest! {
#[test] fn proptest_op_bsp (
d in prop_oneof![
Just(North), Just(South),
Just(East), Just(West),
Just(Above), Just(Below)
],
a in "\\PC*",
b in "\\PC*",
x in u16::MIN..u16::MAX,
y in u16::MIN..u16::MAX,
w in u16::MIN..u16::MAX,
h in u16::MIN..u16::MAX,
) {
let bsp = Bsp(d, a, b);
//assert_eq!(
//Content::layout(&bsp, [x, y, w, h]),
//Draw::layout(&bsp, [x, y, w, h]),
//);
}
}

153
output/src/out_traits.rs
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@ -1,153 +0,0 @@
use crate::*;
/// Drawing target.
///
/// ```
/// use tengri::output::*;
/// struct TestOut(XYWH<u16>);
/// impl Out for TestOut {
/// type Unit = u16;
/// fn area (&self) -> XYWH<u16> { self.0 }
/// fn area_mut (&mut self) -> &mut XYWH<u16> { &mut self.0 }
/// fn place_at <T: Draw<Self> + ?Sized> (&mut self, area: XYWH<u16>, _: &T) {
/// println!("place_at: {area:?}");
/// ()
/// }
/// }
/// impl Draw<TestOut> for String {
/// fn draw (&self, to: &mut TestOut) {
/// //to.area_mut().set_w(self.len() as u16);
/// }
/// }
/// ```
pub trait Out: Send + Sync + Sized {
/// Unit of length
type Unit: Coord;
/// Current output area
fn area (&self) -> XYWH<Self::Unit>;
/// Mutable pointer to area.
fn area_mut (&mut self) -> &mut XYWH<Self::Unit>;
/// Render drawable in area specified by `area`
fn place_at <'t, T: Draw<Self> + ?Sized> (&mut self, area: XYWH<Self::Unit>, content: &'t T);
/// Render drawable in area specified by `T::layout(self.area())`
#[inline] fn place <'t, T: Content<Self> + ?Sized> (&mut self, content: &'t T) {
self.place_at(content.layout(self.area()), content)
}
}
/// A numeric type that can be used as coordinate.
///
/// FIXME: Replace this ad-hoc trait with `num` crate.
pub trait Coord: Send + Sync + Copy
+ Add<Self, Output=Self>
+ Sub<Self, Output=Self>
+ Mul<Self, Output=Self>
+ Div<Self, Output=Self>
+ Ord + PartialEq + Eq
+ Debug + Display + Default
+ From<u16> + Into<u16>
+ Into<usize>
+ Into<f64>
{
fn plus (self, other: Self) -> Self;
fn minus (self, other: Self) -> Self {
if self >= other { self - other } else { 0.into() }
}
fn atomic (self) -> AtomicUsize {
AtomicUsize::new(self.into())
}
fn zero () -> Self {
0.into()
}
}
/// Drawable with dynamic dispatch.
pub trait Draw<O: Out> {
fn draw (&self, to: &mut O);
}
/// FIXME: This is a general implementation: should be called `Eval` and be part of [dizzle].
/// Matches [Language] expressions to renderings for a given [Output] target.
pub trait View<O, U> {
fn view_expr <'a> (&'a self, _output: &mut O, expr: &'a impl Expression) -> Usually<U> {
Err(format!("View::view_expr: no exprs defined: {expr:?}").into())
}
fn view_word <'a> (&'a self, _output: &mut O, word: &'a impl Symbol) -> Usually<U> {
Err(format!("View::view_word: no words defined: {word:?}").into())
}
fn view <'a> (&'a self, output: &mut O, dsl: &'a impl Language) -> Usually<U> {
match (dsl.expr(), dsl.word()) {
(Ok(Some(e)), _ ) => self.view_expr(output, &e),
(_, Ok(Some(w))) => self.view_word(output, &w),
(Err(e), _ ) => Err(format!("invalid view expr:\n{dsl:?}\n{e}").into()),
(_, Err(w) ) => Err(format!("invalid view word:\n{dsl:?}\n{w}").into()),
(Ok(None), Ok(None) ) => Err(format!("empty view:\n{dsl:?}").into()),
}
}
}
/// Outputs combinator.
pub trait Lay<O: Out>: Sized {}
/// Drawable area of display.
pub trait Layout<O: Out> {
fn layout_x (&self, to: XYWH<O::Unit>) -> O::Unit { to.x() }
fn layout_y (&self, to: XYWH<O::Unit>) -> O::Unit { to.y() }
fn layout_w_min (&self, _t: XYWH<O::Unit>) -> O::Unit { 0.into() }
fn layout_w_max (&self, to: XYWH<O::Unit>) -> O::Unit { to.w() }
fn layout_w (&self, to: XYWH<O::Unit>) -> O::Unit { to.w().max(self.layout_w_min(to)).min(self.layout_w_max(to)) }
fn layout_h_min (&self, _t: XYWH<O::Unit>) -> O::Unit { 0.into() }
fn layout_h_max (&self, to: XYWH<O::Unit>) -> O::Unit { to.h() }
fn layout_h (&self, to: XYWH<O::Unit>) -> O::Unit { to.h().max(self.layout_h_min(to)).min(self.layout_h_max(to)) }
fn layout (&self, to: XYWH<O::Unit>) -> XYWH<O::Unit> {
XYWH(self.layout_x(to), self.layout_y(to), self.layout_w(to), self.layout_h(to))
}
}
pub trait HasContent<O: Out> {
fn content (&self) -> impl Content<O>;
}
// TODO DOCUMENTME
pub trait Content<O: Out>: Draw<O> + Layout<O> {}
// Something that has an origin point (X, Y).
pub trait HasXY<N: Coord> {
fn x (&self) -> N;
fn y (&self) -> N;
fn xy (&self) -> XY<N> { XY(self.x(), self.y()) }
}
// Something that has a size (W, H).
pub trait HasWH<N: Coord> {
fn w (&self) -> N;
fn h (&self) -> N;
fn wh (&self) -> WH<N> { WH(self.w(), self.h()) }
}
// Something that has a 2D bounding box (X, Y, W, H).
//
// FIXME: The other way around?
pub trait HasXYWH<N: Coord>: HasXY<N> + HasWH<N> {
fn x2 (&self) -> N { self.x().plus(self.w()) }
fn y2 (&self) -> N { self.y().plus(self.h()) }
fn xywh (&self) -> XYWH<N> { XYWH(self.x(), self.y(), self.w(), self.h()) }
fn expect_min (&self, w: N, h: N) -> Usually<&Self> {
if self.w() < w || self.h() < h {
Err(format!("min {w}x{h}").into())
} else {
Ok(self)
}
}
}
// Something that has a [Measure] of its rendered size.
pub trait Measured<O: Out> {
fn measure (&self) -> &Measure<O>;
fn measure_width (&self) -> O::Unit { self.measure().w() }
fn measure_height (&self) -> O::Unit { self.measure().h() }
}
pub trait HasPerf {
fn perf (&self) -> &PerfModel;
}

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///// The syntagm `(when :condition :content)` corresponds to a [When] layout element.
//impl<S, A> FromDsl<S> for When<A> where bool: FromDsl<S>, A: FromDsl<S> {
//fn try_provide (state: &S, source: &DslVal<impl DslStr, impl DslExpr>) -> Perhaps<Self> {
//source.exp_match("when", |_, tail|Ok(Some(Self(
//FromDsl::<S>::provide(state,
//tail.nth(0, ||"no condition".into())?, ||"no condition".into())?,
//FromDsl::<S>::provide(state,
//tail.nth(1, ||"no content".into())?, ||"no content".into())?,
//))))
//}
//}
///// The syntagm `(either :condition :content1 :content2)` corresponds to an [Either] layout element.
//impl<S, A, B> FromDsl<S> for Either<A, B> where S: Eval<Ast, bool> + Eval<Ast, A> + Eval<Ast, B> {
//fn try_provide (state: &S, source: &DslVal<impl DslStr, impl DslExpr>) -> Perhaps<Self> {
//source.exp_match("either", |_, tail|Ok(Some(Self(
//state.eval(tail.nth(0, ||"no condition")?, ||"no condition")?,
//state.eval(tail.nth(1, ||"no content 1")?, ||"no content 1")?,
//state.eval(tail.nth(2, ||"no content 1")?, ||"no content 2")?,
//))))
//}
//}
///// The syntagm `(align/* :content)` corresponds to an [Align] layout element,
///// where `*` specifies the direction of the alignment.
//impl<S, A> FromDsl<S> for Align<A> where S: Eval<Option<Ast>, A> {
//fn try_provide (state: &S, source: &DslVal<impl DslStr, impl DslExpr>) -> Perhaps<Self> {
//source.exp_match("align/", |head, tail|Ok(Some(match head {
//"c" => Self::c(state.eval(tail.nth(0, ||"no content")?, ||"no content")),
//"x" => Self::x(state.eval(tail.nth(0, ||"no content")?, ||"no content")),
//"y" => Self::y(state.eval(tail.nth(0, ||"no content")?, ||"no content")),
//"n" => Self::n(state.eval(tail.nth(0, ||"no content")?, ||"no content")),
//"s" => Self::s(state.eval(tail.nth(0, ||"no content")?, ||"no content")),
//"e" => Self::e(state.eval(tail.nth(0, ||"no content")?, ||"no content")),
//"w" => Self::w(state.eval(tail.nth(0, ||"no content")?, ||"no content")),
//"nw" => Self::nw(state.eval(tail.nth(0, ||"no content")?, ||"no content")),
//"ne" => Self::ne(state.eval(tail.nth(0, ||"no content")?, ||"no content")),
//"sw" => Self::sw(state.eval(tail.nth(0, ||"no content")?, ||"no content")),
//"se" => Self::se(state.eval(tail.nth(0, ||"no content")?, ||"no content")),
//_ => return Err("invalid align variant".into())
//})))
//}
//}
///// The syntagm `(bsp/* :content1 :content2)` corresponds to a [Bsp] layout element,
///// where `*` specifies the direction of the split.
//impl<S, A, B> FromDsl<S> for Bsp<A, B> where S: Eval<Option<Ast>, A> + Eval<Option<Ast>, B> {
//fn try_provide (state: &S, source: &DslVal<impl DslStr, impl DslExpr>) -> Perhaps<Self> {
//source.exp_match("bsp/", |head, tail|Ok(Some(match head {
//"n" => Self::n(tail.nth(0, ||"no content 1"), tail.nth(1, ||"no content 2")),
//"s" => Self::s(tail.nth(0, ||"no content 1"), tail.nth(1, ||"no content 2")),
//"e" => Self::e(tail.nth(0, ||"no content 1"), tail.nth(1, ||"no content 2")),
//"w" => Self::w(tail.nth(0, ||"no content 1"), tail.nth(1, ||"no content 2")),
//"a" => Self::a(tail.nth(0, ||"no content 1"), tail.nth(1, ||"no content 2")),
//"b" => Self::b(tail.nth(0, ||"no content 1"), tail.nth(1, ||"no content 2")),
//_ => return Ok(None),
//})))
//}
//}
//#[cfg(feature = "dsl")] take!($Enum<A>, A|state, words|Ok(
//if let Some(Token { value: Key(k), .. }) = words.peek() {
//let mut base = words.clone();
//let content = state.give_or_fail(words, ||format!("{k}: no content"))?;
//return Ok(Some(match words.next() {
//Some(Token{value: Key($x),..}) => Self::x(content),
//Some(Token{value: Key($y),..}) => Self::y(content),
//Some(Token{value: Key($xy),..}) => Self::XY(content),
//_ => unreachable!()
//}))
//} else {
//None
//}));
//#[cfg(feature = "dsl")] take!($Enum<U, A>, U, A|state, words|Ok(
//if let Some(Token { value: Key($x|$y|$xy), .. }) = words.peek() {
//let mut base = words.clone();
//Some(match words.next() {
//Some(Token { value: Key($x), .. }) => Self::x(
//state.give_or_fail(words, ||"x: no unit")?,
//state.give_or_fail(words, ||"x: no content")?,
//),
//Some(Token { value: Key($y), .. }) => Self::y(
//state.give_or_fail(words, ||"y: no unit")?,
//state.give_or_fail(words, ||"y: no content")?,
//),
//Some(Token { value: Key($x), .. }) => Self::XY(
//state.give_or_fail(words, ||"xy: no unit x")?,
//state.give_or_fail(words, ||"xy: no unit y")?,
//state.give_or_fail(words, ||"xy: no content")?
//),
//_ => unreachable!(),
//})
//} else {
//None
//}));
//if let Exp(_, exp) = source.value() {
//let mut rest = exp.clone();
//return Ok(Some(match rest.next().as_ref().and_then(|x|x.key()) {
//Some("bsp/n") => Self::n(
//state.eval(rest.next(), ||"bsp/n: no content 1")?,
//state.eval(rest.next(), ||"bsp/n: no content 2")?,
//),
//Some("bsp/s") => Self::s(
//state.eval(rest.next(), ||"bsp/s: no content 1")?,
//state.eval(rest.next(), ||"bsp/s: no content 2")?,
//),
//Some("bsp/e") => Self::e(
//state.eval(rest.next(), ||"bsp/e: no content 1")?,
//state.eval(rest.next(), ||"bsp/e: no content 2")?,
//),
//Some("bsp/w") => Self::w(
//state.eval(rest.next(), ||"bsp/w: no content 1")?,
//state.eval(rest.next(), ||"bsp/w: no content 2")?,
//),
//Some("bsp/a") => Self::a(
//state.eval(rest.next(), ||"bsp/a: no content 1")?,
//state.eval(rest.next(), ||"bsp/a: no content 2")?,
//),
//Some("bsp/b") => Self::b(
//state.eval(rest.next(), ||"bsp/b: no content 1")?,
//state.eval(rest.next(), ||"bsp/b: no content 2")?,
//),
//_ => return Ok(None),
//}))
//}
//Ok(None)
//if let Exp(_, source) = source.value() {
//let mut rest = source.clone();
//return Ok(Some(match rest.next().as_ref().and_then(|x|x.key()) {
//Some("align/c") => Self::c(state.eval(rest.next(), ||"align/c: no content")?),
//Some("align/x") => Self::x(state.eval(rest.next(), ||"align/x: no content")?),
//Some("align/y") => Self::y(state.eval(rest.next(), ||"align/y: no content")?),
//Some("align/n") => Self::n(state.eval(rest.next(), ||"align/n: no content")?),
//Some("align/s") => Self::s(state.eval(rest.next(), ||"align/s: no content")?),
//Some("align/e") => Self::e(state.eval(rest.next(), ||"align/e: no content")?),
//Some("align/w") => Self::w(state.eval(rest.next(), ||"align/w: no content")?),
//Some("align/nw") => Self::nw(state.eval(rest.next(), ||"align/nw: no content")?),
//Some("align/ne") => Self::ne(state.eval(rest.next(), ||"align/ne: no content")?),
//Some("align/sw") => Self::sw(state.eval(rest.next(), ||"align/sw: no content")?),
//Some("align/se") => Self::se(state.eval(rest.next(), ||"align/se: no content")?),
//_ => return Ok(None),
//}))
//}
//Ok(None)
//Ok(match source.exp_head().and_then(|e|e.key()) {
//Some("either") => Some(Self(
//source.exp_tail().and_then(|t|t.get(0)).map(|x|state.eval(x, ||"when: no condition"))?,
//source.exp_tail().and_then(|t|t.get(1)).map(|x|state.eval(x, ||"when: no content 1"))?,
//source.exp_tail().and_then(|t|t.get(2)).map(|x|state.eval(x, ||"when: no content 2"))?,
//)),
//_ => None
//})
//if let Exp(_, mut exp) = source.value()
//&& let Some(Ast(Key(id))) = exp.peek() && *id == *"either" {
//let _ = exp.next();
//return Ok(Some(Self(
//state.eval(exp.next().unwrap(), ||"either: no condition")?,
//state.eval(exp.next().unwrap(), ||"either: no content 1")?,
//state.eval(exp.next().unwrap(), ||"either: no content 2")?,
//)))
//}
//Ok(None)
//Ok(match source.exp_head().and_then(|e|e.key()) {
//Some("when") => Some(Self(
//source.exp_tail().and_then(|t|t.get(0)).map(|x|state.eval(x, ||"when: no condition"))?,
//source.exp_tail().and_then(|t|t.get(1)).map(|x|state.eval(x, ||"when: no content"))?,
//)),
//_ => None
//})
//use crate::*;
//use Direction::*;
//pub struct Stack<'x, E, F1> {
//__: PhantomData<&'x (E, F1)>,
//direction: Direction,
//callback: F1
//}
//impl<'x, E, F1> Stack<'x, E, F1> {
//pub fn new (direction: Direction, callback: F1) -> Self {
//Self { direction, callback, __: Default::default(), }
//}
//pub fn above (callback: F1) -> Self {
//Self::new(Above, callback)
//}
//pub fn below (callback: F1) -> Self {
//Self::new(Below, callback)
//}
//pub fn north (callback: F1) -> Self {
//Self::new(North, callback)
//}
//pub fn south (callback: F1) -> Self {
//Self::new(South, callback)
//}
//pub fn east (callback: F1) -> Self {
//Self::new(East, callback)
//}
//pub fn west (callback: F1) -> Self {
//Self::new(West, callback)
//}
//}
//impl<'x, E: Out, F1: Fn(&mut dyn FnMut(&dyn Layout<E>))> Layout<E> for Stack<'x, E, F1> {
//fn layout (&self, to: E::Area) -> E::Area {
//let state = StackLayoutState::<E>::new(self.direction, to);
//(self.callback)(&mut |component: &dyn Layout<E>|{
//let StackLayoutState { x, y, w_remaining, h_remaining, .. } = *state.borrow();
//let [_, _, w, h] = component.layout([x, y, w_remaining, h_remaining].into()).xywh();
//state.borrow_mut().grow(w, h);
//});
//let StackLayoutState { w_used, h_used, .. } = *state.borrow();
//match self.direction {
//North | West => { todo!() },
//South | East => { [to.x(), to.y(), w_used, h_used].into() },
//_ => unreachable!(),
//}
//}
//}
//impl<'x, E: Out, F1: Fn(&mut dyn FnMut(&dyn Draw<E>))> Draw<E> for Stack<'x, E, F1> {
//fn draw (&self, to: &mut E) {
//let state = StackLayoutState::<E>::new(self.direction, to.area());
//let to = Rc::new(RefCell::new(to));
//(self.callback)(&mut |component: &dyn Draw<E>|{
//let StackLayoutState { x, y, w_remaining, h_remaining, .. } = *state.borrow();
//let layout = component.layout([x, y, w_remaining, h_remaining].into());
//state.borrow_mut().grow(layout.w(), layout.h());
//to.borrow_mut().place_at(layout, component);
//});
//}
//}
//#[derive(Copy, Clone)]
//struct StackLayoutState<E: Out> {
//direction: Direction,
//x: E::Unit,
//y: E::Unit,
//w_used: E::Unit,
//h_used: E::Unit,
//w_remaining: E::Unit,
//h_remaining: E::Unit,
//}
//impl<E: Out> StackLayoutState<E> {
//fn new (direction: Direction, area: E::Area) -> std::rc::Rc<std::cell::RefCell<Self>> {
//let [x, y, w_remaining, h_remaining] = area.xywh();
//std::rc::Rc::new(std::cell::RefCell::new(Self {
//direction,
//x, y, w_remaining, h_remaining,
//w_used: E::Unit::zero(), h_used: E::Unit::zero()
//}))
//}
//fn grow (&mut self, w: E::Unit, h: E::Unit) -> &mut Self {
//match self.direction {
//South => { self.y = self.y.plus(h);
//self.h_used = self.h_used.plus(h);
//self.h_remaining = self.h_remaining.minus(h);
//self.w_used = self.w_used.max(w); },
//East => { self.x = self.x.plus(w);
//self.w_used = self.w_used.plus(w);
//self.w_remaining = self.w_remaining.minus(w);
//self.h_used = self.h_used.max(h); },
//North | West => { todo!() },
//Above | Below => {},
//};
//self
//}
//fn area_remaining (&self) -> E::Area {
//[self.x, self.y, self.w_remaining, self.h_remaining].into()
//}
//}
////pub struct Stack<'a, E, F1> {
////__: PhantomData<&'a (E, F1)>,
////direction: Direction,
////callback: F1
////}
////impl<'a, E, F1> Stack<'a, E, F1> where
////E: Out, F1: Fn(&mut dyn FnMut(&'a dyn Draw<E>)) + Send + Sync,
////{
////pub fn north (callback: F1) -> Self { Self::new(North, callback) }
////pub fn south (callback: F1) -> Self { Self::new(South, callback) }
////pub fn east (callback: F1) -> Self { Self::new(East, callback) }
////pub fn west (callback: F1) -> Self { Self::new(West, callback) }
////pub fn above (callback: F1) -> Self { Self::new(Above, callback) }
////pub fn below (callback: F1) -> Self { Self::new(Below, callback) }
////pub fn new (direction: Direction, callback: F1) -> Self {
////Self { direction, callback, __: Default::default(), }
////}
////}
////impl<'a, E, F1> Draw<E> for Stack<'a, E, F1> where
////E: Out, F1: Fn(&mut dyn FnMut(&'a dyn Draw<E>)) + Send + Sync,
////{
////fn layout (&self, to: E::Area) -> E::Area {
////let state = StackLayoutState::<E>::new(self.direction, to);
////let mut adder = {
////let state = state.clone();
////move|component: &dyn Draw<E>|{
////let [w, h] = component.layout(state.borrow().area_remaining()).wh();
////state.borrow_mut().grow(w, h);
////}
////};
////(self.callback)(&mut adder);
////let StackLayoutState { w_used, h_used, .. } = *state.borrow();
////match self.direction {
////North | West => { todo!() },
////South | East => { [to.x(), to.y(), w_used, h_used].into() },
////Above | Below => { [to.x(), to.y(), to.w(), to.h()].into() },
////}
////}
////fn draw (&self, to: &mut E) {
////let state = StackLayoutState::<E>::new(self.direction, to.area());
////let mut adder = {
////let state = state.clone();
////move|component: &dyn Draw<E>|{
////let [x, y, w, h] = component.layout(state.borrow().area_remaining()).xywh();
////state.borrow_mut().grow(w, h);
////to.place_at([x, y, w, h].into(), component);
////}
////};
////(self.callback)(&mut adder);
////}
////}
//[>Stack::down(|add|{
//let mut i = 0;
//for (_, name) in self.dirs.iter() {
//if i >= self.scroll {
//add(&Tui::bold(i == self.index, name.as_str()))?;
//}
//i += 1;
//}
//for (_, name) in self.files.iter() {
//if i >= self.scroll {
//add(&Tui::bold(i == self.index, name.as_str()))?;
//}
//i += 1;
//}
//add(&format!("{}/{i}", self.index))?;
//Ok(())
//}));*/
//#[test] fn test_iter_map () {
//struct Foo;
//impl<T: Out> Content<T> for Foo {}
//fn _make_map <T: Out, U: Content<T> + Send + Sync> (data: &Vec<U>) -> impl Draw<T> {
//Map::new(||data.iter(), |_foo, _index|{})
//}
//let _data = vec![Foo, Foo, Foo];
////let map = make_map(&data);
//}
// FIXME
//use crate::{dsl::*, input::*, tui::TuiIn};
//use crossterm::event::{Event, KeyEvent, KeyCode, KeyModifiers, KeyEventKind, KeyEventState};
//use std::cmp::Ordering;
//#[test] fn test_subcommand () -> Usually<()> {
//#[derive(Debug)] struct Event(crossterm::event::Event);
//impl Eq for Event {}
//impl PartialEq for Event { fn eq (&self, other: &Self) -> bool { todo!() } }
//impl Ord for Event { fn cmp (&self, other: &Self) -> Ordering { todo!() } }
//impl PartialOrd for Event { fn partial_cmp (&self, other: &Self) -> Option<Ordering> { None } }
//struct Test { keys: InputMap<Event, Ast> }
//handle!(TuiIn: |self: Test, input|Ok(None));[>if let Some(command) = self.keys.command(self, input) {
//Ok(Some(true))
//} else {
//Ok(None)
//});*/
//#[tengri_proc::command(Test)]
//impl TestCommand {
//fn do_thing (_state: &mut Test) -> Perhaps<Self> {
//Ok(None)
//}
//fn do_thing_arg (_state: &mut Test, _arg: usize) -> Perhaps<Self> {
//Ok(None)
//}
//fn do_sub (state: &mut Test, command: TestSubcommand) -> Perhaps<Self> {
//Ok(command.execute(state)?.map(|command|Self::DoSub { command }))
//}
//}
//#[tengri_proc::command(Test)]
//impl TestSubcommand {
//fn do_other_thing (_state: &mut Test) -> Perhaps<Self> {
//Ok(None)
//}
//fn do_other_thing_arg (_state: &mut Test, _arg: usize) -> Perhaps<Self> {
//Ok(None)
//}
//}
//let mut test = Test {
//keys: InputMap::from_source("
//(@a do-thing)
//(@b do-thing-arg 0)
//(@c do-sub do-other-thing)
//(@d do-sub do-other-thing-arg 0)
//")?
//};
////assert_eq!(Some(true), test.handle(&TuiIn(Default::default(), Event::Key(KeyEvent {
////kind: KeyEventKind::Press,
////code: KeyCode::Char('a'),
////modifiers: KeyModifiers::NONE,
////state: KeyEventState::NONE,
////})))?);
////assert_eq!(Some(true), test.handle(&TuiIn(Default::default(), Event::Key(KeyEvent {
////kind: KeyEventKind::Press,
////code: KeyCode::Char('b'),
////modifiers: KeyModifiers::NONE,
////state: KeyEventState::NONE,
////})))?);
////assert_eq!(Some(true), test.handle(&TuiIn(Default::default(), Event::Key(KeyEvent {
////kind: KeyEventKind::Press,
////code: KeyCode::Char('c'),
////modifiers: KeyModifiers::NONE,
////state: KeyEventState::NONE,
////})))?);
////assert_eq!(Some(true), test.handle(&TuiIn(Default::default(), Event::Key(KeyEvent {
////kind: KeyEventKind::Press,
////code: KeyCode::Char('d'),
////modifiers: KeyModifiers::NONE,
////state: KeyEventState::NONE,
////})))?);
////assert_eq!(None, test.handle(&TuiIn(Default::default(), Event::Key(KeyEvent {
////kind: KeyEventKind::Press,
////code: KeyCode::Char('z'),
////modifiers: KeyModifiers::NONE,
////state: KeyEventState::NONE,
////})))?);
//Ok(())
//}
//FIXME:
//#[cfg(test)] #[test] fn test_dsl_context () {
//use crate::dsl::{Dsl, Value};
//struct Test;
//#[tengri_proc::expose]
//impl Test {
//fn some_bool (&self) -> bool {
//true
//}
//}
//assert_eq!(Dsl::get(&Test, &Value::Sym(":false")), Some(false));
//assert_eq!(Dsl::get(&Test, &Value::Sym(":true")), Some(true));
//assert_eq!(Dsl::get(&Test, &Value::Sym(":some-bool")), Some(true));
//assert_eq!(Dsl::get(&Test, &Value::Sym(":missing-bool")), None);
//assert_eq!(Dsl::get(&Test, &Value::Num(0)), Some(false));
//assert_eq!(Dsl::get(&Test, &Value::Num(1)), Some(true));
//}
use crate::*;
#[derive(Clone, Copy, Debug, PartialEq)]
pub enum FocusState<T: Copy + Debug + PartialEq> {
Focused(T),
Entered(T),
}
impl<T: Copy + Debug + PartialEq> FocusState<T> {
pub fn inner (&self) -> T {
match self {
Self::Focused(inner) => *inner,
Self::Entered(inner) => *inner,
}
}
pub fn set_inner (&mut self, inner: T) {
*self = match self {
Self::Focused(_) => Self::Focused(inner),
Self::Entered(_) => Self::Entered(inner),
}
}
pub fn is_focused (&self) -> bool { matches!(self, Self::Focused(_)) }
pub fn is_entered (&self) -> bool { matches!(self, Self::Entered(_)) }
pub fn focus (&mut self) { *self = Self::Focused(self.inner()) }
pub fn enter (&mut self) { *self = Self::Entered(self.inner()) }
}
#[derive(Copy, Clone, PartialEq, Debug)]
pub enum FocusCommand<T: Send + Sync> {
Up,
Down,
Left,
Right,
Next,
Prev,
Enter,
Exit,
Set(T)
}
impl<F: HasFocus + HasEnter + FocusGrid + FocusOrder> Command<F> for FocusCommand<F::Item> {
fn execute (self, state: &mut F) -> Perhaps<FocusCommand<F::Item>> {
match self {
Self::Next => { state.focus_next(); },
Self::Prev => { state.focus_prev(); },
Self::Up => { state.focus_up(); },
Self::Down => { state.focus_down(); },
Self::Left => { state.focus_left(); },
Self::Right => { state.focus_right(); },
Self::Enter => { state.focus_enter(); },
Self::Exit => { state.focus_exit(); },
Self::Set(to) => { state.set_focused(to); },
}
Ok(None)
}
}
/// Trait for things that have focusable subparts.
pub trait HasFocus {
type Item: Copy + PartialEq + Debug + Send + Sync;
/// Get the currently focused item.
fn focused (&self) -> Self::Item;
/// Get the currently focused item.
fn set_focused (&mut self, to: Self::Item);
/// Loop forward until a specific item is focused.
fn focus_to (&mut self, to: Self::Item) {
self.set_focused(to);
self.focus_updated();
}
/// Run this on focus update
fn focus_updated (&mut self) {}
}
/// Trait for things that have enterable subparts.
pub trait HasEnter: HasFocus {
/// Get the currently focused item.
fn entered (&self) -> bool;
/// Get the currently focused item.
fn set_entered (&mut self, entered: bool);
/// Enter into the currently focused component
fn focus_enter (&mut self) {
self.set_entered(true);
self.focus_updated();
}
/// Exit the currently entered component
fn focus_exit (&mut self) {
self.set_entered(false);
self.focus_updated();
}
}
/// Trait for things that implement directional navigation between focusable elements.
pub trait FocusGrid: HasFocus {
fn focus_layout (&self) -> &[&[Self::Item]];
fn focus_cursor (&self) -> (usize, usize);
fn focus_cursor_mut (&mut self) -> &mut (usize, usize);
fn focus_current (&self) -> Self::Item {
let (x, y) = self.focus_cursor();
self.focus_layout()[y][x]
}
fn focus_update (&mut self) {
self.focus_to(self.focus_current());
self.focus_updated()
}
fn focus_up (&mut self) {
let original_focused = self.focused();
let (_, original_y) = self.focus_cursor();
loop {
let (x, y) = self.focus_cursor();
let next_y = if y == 0 {
self.focus_layout().len().saturating_sub(1)
} else {
y - 1
};
if next_y == original_y {
break
}
let next_x = if self.focus_layout()[y].len() == self.focus_layout()[next_y].len() {
x
} else {
((x as f32 / self.focus_layout()[original_y].len() as f32)
* self.focus_layout()[next_y].len() as f32) as usize
};
*self.focus_cursor_mut() = (next_x, next_y);
if self.focus_current() != original_focused {
break
}
}
self.focus_update();
}
fn focus_down (&mut self) {
let original_focused = self.focused();
let (_, original_y) = self.focus_cursor();
loop {
let (x, y) = self.focus_cursor();
let next_y = if y >= self.focus_layout().len().saturating_sub(1) {
0
} else {
y + 1
};
if next_y == original_y {
break
}
let next_x = if self.focus_layout()[y].len() == self.focus_layout()[next_y].len() {
x
} else {
((x as f32 / self.focus_layout()[original_y].len() as f32)
* self.focus_layout()[next_y].len() as f32) as usize
};
*self.focus_cursor_mut() = (next_x, next_y);
if self.focus_current() != original_focused {
break
}
}
self.focus_update();
}
fn focus_left (&mut self) {
let original_focused = self.focused();
let (original_x, y) = self.focus_cursor();
loop {
let x = self.focus_cursor().0;
let next_x = if x == 0 {
self.focus_layout()[y].len().saturating_sub(1)
} else {
x - 1
};
if next_x == original_x {
break
}
*self.focus_cursor_mut() = (next_x, y);
if self.focus_current() != original_focused {
break
}
}
self.focus_update();
}
fn focus_right (&mut self) {
let original_focused = self.focused();
let (original_x, y) = self.focus_cursor();
loop {
let x = self.focus_cursor().0;
let next_x = if x >= self.focus_layout()[y].len().saturating_sub(1) {
0
} else {
x + 1
};
if next_x == original_x {
break
}
self.focus_cursor_mut().0 = next_x;
if self.focus_current() != original_focused {
break
}
}
self.focus_update();
}
}
/// Trait for things that implement next/prev navigation between focusable elements.
pub trait FocusOrder {
/// Focus the next item.
fn focus_next (&mut self);
/// Focus the previous item.
fn focus_prev (&mut self);
}
/// Next/prev navigation for directional focusables works in the given way.
impl<T: FocusGrid + HasEnter> FocusOrder for T {
/// Focus the next item.
fn focus_next (&mut self) {
let current = self.focused();
let (x, y) = self.focus_cursor();
if x < self.focus_layout()[y].len().saturating_sub(1) {
self.focus_right();
} else {
self.focus_down();
self.focus_cursor_mut().0 = 0;
}
if self.focused() == current { // FIXME: prevent infinite loop
self.focus_next()
}
self.focus_exit();
self.focus_update();
}
/// Focus the previous item.
fn focus_prev (&mut self) {
let current = self.focused();
let (x, _) = self.focus_cursor();
if x > 0 {
self.focus_left();
} else {
self.focus_up();
let (_, y) = self.focus_cursor();
let next_x = self.focus_layout()[y].len().saturating_sub(1);
self.focus_cursor_mut().0 = next_x;
}
if self.focused() == current { // FIXME: prevent infinite loop
self.focus_prev()
}
self.focus_exit();
self.focus_update();
}
}
pub trait FocusWrap<T> {
fn wrap <W: Content<TuiOut>> (self, focus: T, content: &'_ W) -> impl Draw<TuiOut> + '_;
}
pub fn to_focus_command <T: Send + Sync> (input: &TuiIn) -> Option<FocusCommand<T>> {
Some(match input.event() {
kpat!(Tab) => FocusCommand::Next,
kpat!(Shift-Tab) => FocusCommand::Prev,
kpat!(BackTab) => FocusCommand::Prev,
kpat!(Shift-BackTab) => FocusCommand::Prev,
kpat!(Up) => FocusCommand::Up,
kpat!(Down) => FocusCommand::Down,
kpat!(Left) => FocusCommand::Left,
kpat!(Right) => FocusCommand::Right,
kpat!(Enter) => FocusCommand::Enter,
kpat!(Esc) => FocusCommand::Exit,
_ => return None
})
}
#[macro_export] macro_rules! impl_focus {
($Struct:ident $Focus:ident $Grid:expr $(=> [$self:ident : $update_focus:expr])?) => {
impl HasFocus for $Struct {
type Item = $Focus;
/// Get the currently focused item.
fn focused (&self) -> Self::Item {
self.focus.inner()
}
/// Get the currently focused item.
fn set_focused (&mut self, to: Self::Item) {
self.focus.set_inner(to)
}
$(fn focus_updated (&mut $self) { $update_focus })?
}
impl HasEnter for $Struct {
/// Get the currently focused item.
fn entered (&self) -> bool {
self.focus.is_entered()
}
/// Get the currently focused item.
fn set_entered (&mut self, entered: bool) {
if entered {
self.focus.to_entered()
} else {
self.focus.to_focused()
}
}
}
impl FocusGrid for $Struct {
fn focus_cursor (&self) -> (usize, usize) {
self.cursor
}
fn focus_cursor_mut (&mut self) -> &mut (usize, usize) {
&mut self.cursor
}
fn focus_layout (&self) -> &[&[$Focus]] {
use $Focus::*;
&$Grid
}
}
}
}
use crate::*;
pub struct MenuBar<E: Engine, S, C: Command<S>> {
pub menus: Vec<Menu<E, S, C>>,
pub index: usize,
}
impl<E: Engine, S, C: Command<S>> MenuBar<E, S, C> {
pub fn new () -> Self { Self { menus: vec![], index: 0 } }
pub fn add (mut self, menu: Menu<E, S, C>) -> Self {
self.menus.push(menu);
self
}
}
pub struct Menu<E: Engine, S, C: Command<S>> {
pub title: Arc<str>,
pub items: Vec<MenuItem<E, S, C>>,
pub index: Option<usize>,
}
impl<E: Engine, S, C: Command<S>> Menu<E, S, C> {
pub fn new (title: impl AsRef<str>) -> Self {
Self {
title: title.as_ref().to_string(),
items: vec![],
index: None,
}
}
pub fn add (mut self, item: MenuItem<E, S, C>) -> Self {
self.items.push(item);
self
}
pub fn sep (mut self) -> Self {
self.items.push(MenuItem::sep());
self
}
pub fn cmd (mut self, hotkey: &'static str, text: &'static str, command: C) -> Self {
self.items.push(MenuItem::cmd(hotkey, text, command));
self
}
pub fn off (mut self, hotkey: &'static str, text: &'static str) -> Self {
self.items.push(MenuItem::off(hotkey, text));
self
}
}
pub enum MenuItem<E: Engine, S, C: Command<S>> {
/// Unused.
__(PhantomData<E>, PhantomData<S>),
/// A separator. Skip it.
Separator,
/// A menu item with command, description and hotkey.
Command(&'static str, &'static str, C),
/// A menu item that can't be activated but has description and hotkey
Disabled(&'static str, &'static str)
}
impl<E: Engine, S, C: Command<S>> MenuItem<E, S, C> {
pub fn sep () -> Self {
Self::Separator
}
pub fn cmd (hotkey: &'static str, text: &'static str, command: C) -> Self {
Self::Command(hotkey, text, command)
}
pub fn off (hotkey: &'static str, text: &'static str) -> Self {
Self::Disabled(hotkey, text)
}
}
//impl<T: Draw<TuiOut>> Content<TuiOut> for Result<T, Box<dyn std::error::Error>> {
//fn content (&self) -> impl Draw<TuiOut> + '_ {
//Bsp::a(self.as_ref().ok(), self.as_ref().err().map(
//|e|Tui::fg_bg(Color::Rgb(255,255,255), Color::Rgb(32,32,32), e.to_string())
//))
//}
//}
//impl<T: Draw<TuiOut>> Draw<TuiOut> for Result<T, Box<dyn std::error::Error>> {
//fn layout (&self, to: [u16;4]) -> [u16;4] {
//match self {
//Ok(content) => content.layout(to),
//Err(e) => [0, 0, to.w(), to.h()]
//}
//}
//fn draw (&self, to: &mut TuiOut) {
//match self {
//Ok(content) => content.draw(to),
//Err(e) => to.blit(&e.to_string(), 0, 0, Some(Style::default()
//.bg(Color::Rgb(32,32,32))
//.fg(Color::Rgb(255,255,255))))
//}
//}
//}
//let token = token.as_ref();
//if token.len() < 2 {
//Self { valid: false, key: None, mods: KeyModifiers::NONE }
//} else if token.chars().next() != Some('@') {
//Self { valid: false, key: None, mods: KeyModifiers::NONE }
//} else {
//Self { valid: true, key: None, mods: KeyModifiers::NONE }.next(&token[1..])
//}
//}
//pub fn build (self) -> Option<Event> {
//if self.valid && self.key.is_some() {
//Some(Event::Key(KeyEvent::new(self.key.unwrap(), self.mods)))
//} else {
//None
//}
//}
//fn next (mut self, token: &str) -> Self {
//let mut tokens = token.split('-').peekable();
//while let Some(token) = tokens.next() {
//if tokens.peek().is_some() {
//match token {
//"ctrl" | "Ctrl" | "c" | "C" => self.mods |= KeyModifiers::CONTROL,
//"alt" | "Alt" | "m" | "M" => self.mods |= KeyModifiers::ALT,
//"shift" | "Shift" | "s" | "S" => {
//self.mods |= KeyModifiers::SHIFT;
//// + TODO normalize character case, BackTab, etc.
//},
//_ => panic!("unknown modifier {token}"),
//}
//} else {
//self.key = if token.len() == 1 {
//Some(KeyCode::Char(token.chars().next().unwrap()))
//} else {
//Some(Self::named_key(token).unwrap_or_else(||panic!("unknown character {token}")))
//}
//}
//}
//self
//}

26
tengri/Cargo.toml
View file

@ -6,21 +6,33 @@ version = { workspace = true }
[features] [features]
default = [ "input", "output", "tui" ] default = [ "input", "output", "tui" ]
input = [ "tengri_input" ] bumpalo = [ "dep:bumpalo" ]
output = [ "tengri_output" ] input = [ ]
tui = [ "tengri_tui" ] output = [ ]
dsl = [ "tengri_output/dsl", "tengri_tui/dsl" ] tui = [ ]
dsl = [ ]
[dependencies] [dependencies]
atomic_float = { workspace = true }
better-panic = { workspace = true }
bumpalo = { workspace = true, optional = true }
crossterm = { workspace = true }
dizzle = { workspace = true } dizzle = { workspace = true }
tengri_input = { workspace = true, optional = true } palette = { workspace = true }
tengri_output = { workspace = true, optional = true } quanta = { workspace = true }
tengri_tui = { workspace = true, optional = true } rand = { workspace = true }
ratatui = { workspace = true }
unicode-width = { workspace = true }
[dev-dependencies] [dev-dependencies]
tengri_proc = { workspace = true } tengri_proc = { workspace = true }
tengri = { workspace = true, features = [ "dsl" ] } tengri = { workspace = true, features = [ "dsl" ] }
crossterm = { workspace = true } crossterm = { workspace = true }
proptest = { workspace = true }
proptest-derive = { workspace = true }
[lib]
path = "tengri.rs"
[target.'cfg(target_os = "linux")'] [target.'cfg(target_os = "linux")']
rustflags = ["-C", "link-arg=-fuse-ld=mold"] rustflags = ["-C", "link-arg=-fuse-ld=mold"]

32
tengri/README.md
View file

@ -15,3 +15,35 @@ as well as:
* [***tengri***](./tengri), the top-level reexport crate * [***tengri***](./tengri), the top-level reexport crate
tengri is published under [**AGPL3**](./LICENSE). tengri is published under [**AGPL3**](./LICENSE).
## Input
***tengri_input*** is where tengri's input handling is defined.
the following items are provided:
* `Input` trait, for defining for input sources
* `Handle` trait and `handle!` macro, for defining input handlers
* `Command` trait and the `command!` macro, for defining commands that inputs may result in
## Output
***tengri_output*** is an abstract interface layout framework.
it expresses the following notions:
* [**space:**](./src/space.rs) `Direction`, `Coordinate`, `Area`, `Size`, `Measure`
* [**output:**](./src/output.rs) `Out`, `Draw`, `Content`
* the layout operators are generic over `Draw` and/or `Content`
* the traits `Draw` and `Content` are generic over `Out`
* implement `Out` to bring a layout to a new backend:
[see `TuiOut` in `tengri_tui`](../tui/src/tui_engine/tui_output.rs)
* [**layout:**](./src/layout.rs)
* conditionals: `When`, `Either`
* iteration: `Map`
* concatenation: `Bsp`
* positioning: `Align`, `Push`, `Pull`
* sizing: `Fill`, `Fixed`, `Expand`, `Shrink`, `Min`, `Max`
* implement custom components (that may be backend-dependent):
[see `tui_content` in `tengri_tui`](../tui/src/tui_content)

112
tengri/src/lib.rs
View file

@ -1,112 +0,0 @@
pub use ::dizzle::*;
#[cfg(feature="output")] pub use ::tengri_output as output;
#[cfg(feature="input")] pub use ::tengri_input as input;
#[cfg(feature="tui")] pub use ::tengri_tui as tui;
#[cfg(test)] extern crate tengri_proc;
#[cfg(test)] mod test {
// FIXME
//use crate::*;
//use crate::{dsl::*, input::*, tui::TuiIn};
//use crossterm::event::{Event, KeyEvent, KeyCode, KeyModifiers, KeyEventKind, KeyEventState};
//use std::cmp::Ordering;
//#[test] fn test_subcommand () -> Usually<()> {
//#[derive(Debug)] struct Event(crossterm::event::Event);
//impl Eq for Event {}
//impl PartialEq for Event { fn eq (&self, other: &Self) -> bool { todo!() } }
//impl Ord for Event { fn cmp (&self, other: &Self) -> Ordering { todo!() } }
//impl PartialOrd for Event { fn partial_cmp (&self, other: &Self) -> Option<Ordering> { None } }
//struct Test { keys: InputMap<Event, Ast> }
//handle!(TuiIn: |self: Test, input|Ok(None));[>if let Some(command) = self.keys.command(self, input) {
//Ok(Some(true))
//} else {
//Ok(None)
//});*/
//#[tengri_proc::command(Test)]
//impl TestCommand {
//fn do_thing (_state: &mut Test) -> Perhaps<Self> {
//Ok(None)
//}
//fn do_thing_arg (_state: &mut Test, _arg: usize) -> Perhaps<Self> {
//Ok(None)
//}
//fn do_sub (state: &mut Test, command: TestSubcommand) -> Perhaps<Self> {
//Ok(command.execute(state)?.map(|command|Self::DoSub { command }))
//}
//}
//#[tengri_proc::command(Test)]
//impl TestSubcommand {
//fn do_other_thing (_state: &mut Test) -> Perhaps<Self> {
//Ok(None)
//}
//fn do_other_thing_arg (_state: &mut Test, _arg: usize) -> Perhaps<Self> {
//Ok(None)
//}
//}
//let mut test = Test {
//keys: InputMap::from_source("
//(@a do-thing)
//(@b do-thing-arg 0)
//(@c do-sub do-other-thing)
//(@d do-sub do-other-thing-arg 0)
//")?
//};
////assert_eq!(Some(true), test.handle(&TuiIn(Default::default(), Event::Key(KeyEvent {
////kind: KeyEventKind::Press,
////code: KeyCode::Char('a'),
////modifiers: KeyModifiers::NONE,
////state: KeyEventState::NONE,
////})))?);
////assert_eq!(Some(true), test.handle(&TuiIn(Default::default(), Event::Key(KeyEvent {
////kind: KeyEventKind::Press,
////code: KeyCode::Char('b'),
////modifiers: KeyModifiers::NONE,
////state: KeyEventState::NONE,
////})))?);
////assert_eq!(Some(true), test.handle(&TuiIn(Default::default(), Event::Key(KeyEvent {
////kind: KeyEventKind::Press,
////code: KeyCode::Char('c'),
////modifiers: KeyModifiers::NONE,
////state: KeyEventState::NONE,
////})))?);
////assert_eq!(Some(true), test.handle(&TuiIn(Default::default(), Event::Key(KeyEvent {
////kind: KeyEventKind::Press,
////code: KeyCode::Char('d'),
////modifiers: KeyModifiers::NONE,
////state: KeyEventState::NONE,
////})))?);
////assert_eq!(None, test.handle(&TuiIn(Default::default(), Event::Key(KeyEvent {
////kind: KeyEventKind::Press,
////code: KeyCode::Char('z'),
////modifiers: KeyModifiers::NONE,
////state: KeyEventState::NONE,
////})))?);
//Ok(())
//}
//FIXME:
//#[cfg(test)] #[test] fn test_dsl_context () {
//use crate::dsl::{Dsl, Value};
//struct Test;
//#[tengri_proc::expose]
//impl Test {
//fn some_bool (&self) -> bool {
//true
//}
//}
//assert_eq!(Dsl::get(&Test, &Value::Sym(":false")), Some(false));
//assert_eq!(Dsl::get(&Test, &Value::Sym(":true")), Some(true));
//assert_eq!(Dsl::get(&Test, &Value::Sym(":some-bool")), Some(true));
//assert_eq!(Dsl::get(&Test, &Value::Sym(":missing-bool")), None);
//assert_eq!(Dsl::get(&Test, &Value::Num(0)), Some(false));
//assert_eq!(Dsl::get(&Test, &Value::Num(1)), Some(true));
//}
}

900
tengri/tengri.rs Normal file
View file

@ -0,0 +1,900 @@
#![feature(anonymous_lifetime_in_impl_trait)]
#![feature(associated_type_defaults)]
#![feature(const_default)]
#![feature(const_option_ops)]
#![feature(const_precise_live_drops)]
#![feature(const_trait_impl)]
#![feature(if_let_guard)]
#![feature(impl_trait_in_assoc_type)]
#![feature(step_trait)]
#![feature(trait_alias)]
#![feature(type_alias_impl_trait)]
#![feature(type_changing_struct_update)]
//#![feature(non_lifetime_binders)]
mod tengri_impl;
mod tengri_type; pub use self::tengri_type::*;
mod tengri_trait; pub use self::tengri_trait::*;
mod tengri_struct; pub use self::tengri_struct::*;
//pub(crate) use quanta::Clock;
pub extern crate atomic_float; pub(crate) use atomic_float::AtomicF64;
pub extern crate ratatui;
pub extern crate crossterm;
pub extern crate palette;
pub extern crate better_panic;
extern crate dizzle; pub use dizzle::*;
#[cfg(test)] extern crate tengri_proc;
use std::{time::Duration, thread::{spawn, JoinHandle}, io::Write};
use unicode_width::*;
pub(crate) use ::{
std::{
io::{stdout, Stdout},
sync::{Arc, RwLock, atomic::{AtomicBool, AtomicUsize, Ordering::*}},
fmt::{Debug, Display},
ops::{Add, Sub, Mul, Div},
marker::PhantomData,
},
better_panic::{Settings, Verbosity},
palette::{*, convert::*, okhsl::*},
ratatui::{
prelude::{Color, Style, Buffer, Position},
style::{Stylize, Modifier, Color::*},
backend::{Backend, CrosstermBackend, ClearType},
layout::{Size, Rect},
buffer::Cell
},
crossterm::{
ExecutableCommand,
terminal::{EnterAlternateScreen, LeaveAlternateScreen, enable_raw_mode, disable_raw_mode},
event::{poll, read, Event, KeyEvent, KeyCode, KeyModifiers, KeyEventKind, KeyEventState},
}
};
// Define macros first, so that private macros are available in private modules:
/// Clear a pre-allocated buffer, then write into it.
#[macro_export] macro_rules! rewrite {
($buf:ident, $($rest:tt)*) => { |$buf,_,_|{ $buf.clear(); write!($buf, $($rest)*) } }
}
/// FIXME: This macro should be some variant of `eval`, too.
/// But taking into account the different signatures (resolving them into 1?)
#[cfg(feature = "dsl")] #[macro_export] macro_rules! draw {
($State:ident: $Output:ident: $layers:expr) => {
impl Draw<$Output> for $State {
fn draw (&self, to: &mut $Output) {
for layer in $layers { layer(self, to) }
}
}
}
}
/// FIXME: This is generic: should be called `eval` and be part of [dizzle].
#[cfg(feature = "dsl")] #[macro_export] macro_rules! view {
($State:ident: $Output:ident: $namespaces:expr) => {
impl View<$Output, ()> for $State {
fn view_expr <'a> (&'a self, to: &mut $Output, expr: &'a impl Expression) -> Usually<()> {
for namespace in $namespaces { if namespace(self, to, expr)? { return Ok(()) } }
Err(format!("{}::<{}, ()>::view_expr: unexpected: {expr:?}",
stringify! { $State },
stringify! { $Output }).into())
}
}
}
}
/// Stack things on top of each other,
#[macro_export] macro_rules! lay (($($expr:expr),* $(,)?) => {{ let bsp = (); $(let bsp = Bsp::b(bsp, $expr);)*; bsp }});
/// Stack southward.
#[macro_export] macro_rules! col (($($expr:expr),* $(,)?) => {{ let bsp = (); $(let bsp = Bsp::s(bsp, $expr);)*; bsp }});
/// Stack northward.
#[macro_export] macro_rules! col_up (($($expr:expr),* $(,)?) => {{ let bsp = (); $(let bsp = Bsp::n(bsp, $expr);)*; bsp }});
/// Stack eastward.
#[macro_export] macro_rules! row (($($expr:expr),* $(,)?) => {{ let bsp = (); $(let bsp = Bsp::e(bsp, $expr);)*; bsp }});
/// Define layout operation.
#[cfg(feature = "dsl")] pub fn evaluate_output_expression <'a, O: Out + 'a, S> (
state: &S, output: &mut O, expr: &'a impl Expression
) -> Usually<bool> where
S: View<O, ()>
+ for<'b>Namespace<'b, bool>
+ for<'b>Namespace<'b, O::Unit>
{
// First element of expression is used for dispatch.
// Dispatch is proto-namespaced using separator character
let head = expr.head()?;
let mut frags = head.src()?.unwrap_or_default().split("/");
// The rest of the tokens in the expr are arguments.
// Their meanings depend on the dispatched operation
let args = expr.tail();
let arg0 = args.head();
let tail0 = args.tail();
let arg1 = tail0.head();
let tail1 = tail0.tail();
let arg2 = tail1.head();
// And we also have to do the above binding dance
// so that the Perhaps<token>s remain in scope.
match frags.next() {
Some("when") => output.place(&When::new(
state.namespace(arg0?)?.unwrap(),
Thunk::new(move|output: &mut O|state.view(output, &arg1).unwrap())
)),
Some("either") => output.place(&Either::new(
state.namespace(arg0?)?.unwrap(),
Thunk::new(move|output: &mut O|state.view(output, &arg1).unwrap()),
Thunk::new(move|output: &mut O|state.view(output, &arg2).unwrap())
)),
Some("bsp") => output.place(&{
let a = Thunk::new(move|output: &mut O|state.view(output, &arg0).unwrap());
let b = Thunk::new(move|output: &mut O|state.view(output, &arg1).unwrap());
match frags.next() {
Some("n") => Bsp::n(a, b),
Some("s") => Bsp::s(a, b),
Some("e") => Bsp::e(a, b),
Some("w") => Bsp::w(a, b),
Some("a") => Bsp::a(a, b),
Some("b") => Bsp::b(a, b),
frag => unimplemented!("bsp/{frag:?}")
}
}),
Some("align") => output.place(&{
let a = Thunk::new(move|output: &mut O|state.view(output, &arg0).unwrap());
match frags.next() {
Some("n") => Align::n(a),
Some("s") => Align::s(a),
Some("e") => Align::e(a),
Some("w") => Align::w(a),
Some("x") => Align::x(a),
Some("y") => Align::y(a),
Some("c") => Align::c(a),
frag => unimplemented!("align/{frag:?}")
}
}),
Some("fill") => output.place(&{
let a = Thunk::new(move|output: &mut O|state.view(output, &arg0).unwrap());
match frags.next() {
Some("xy") | None => Fill::XY(a),
Some("x") => Fill::X(a),
Some("y") => Fill::Y(a),
frag => unimplemented!("fill/{frag:?}")
}
}),
Some("fixed") => output.place(&{
let axis = frags.next();
let arg = match axis { Some("x") | Some("y") => arg1, Some("xy") | None => arg2, _ => panic!("fixed: unsupported axis {axis:?}") };
let cb = Thunk::new(move|output: &mut O|state.view(output, &arg).unwrap());
match axis {
Some("xy") | None => Fixed::XY(state.namespace(arg0?)?.unwrap(), state.namespace(arg1?)?.unwrap(), cb),
Some("x") => Fixed::X(state.namespace(arg0?)?.unwrap(), cb),
Some("y") => Fixed::Y(state.namespace(arg0?)?.unwrap(), cb),
frag => unimplemented!("fixed/{frag:?} ({expr:?}) ({head:?}) ({:?})",
head.src()?.unwrap_or_default().split("/").next())
}
}),
Some("min") => output.place(&{
let axis = frags.next();
let arg = match axis { Some("x") | Some("y") => arg1, Some("xy") | None => arg2, _ => panic!("fixed: unsupported axis {axis:?}") };
let cb = Thunk::new(move|output: &mut O|state.view(output, &arg).unwrap());
match axis {
Some("xy") | None => Min::XY(state.namespace(arg0?)?.unwrap(), state.namespace(arg1?)?.unwrap(), cb),
Some("x") => Min::X(state.namespace(arg0?)?.unwrap(), cb),
Some("y") => Min::Y(state.namespace(arg0?)?.unwrap(), cb),
frag => unimplemented!("min/{frag:?}")
}
}),
Some("max") => output.place(&{
let axis = frags.next();
let arg = match axis { Some("x") | Some("y") => arg1, Some("xy") | None => arg2, _ => panic!("fixed: unsupported axis {axis:?}") };
let cb = Thunk::new(move|output: &mut O|state.view(output, &arg).unwrap());
match axis {
Some("xy") | None => Max::XY(state.namespace(arg0?)?.unwrap(), state.namespace(arg1?)?.unwrap(), cb),
Some("x") => Max::X(state.namespace(arg0?)?.unwrap(), cb),
Some("y") => Max::Y(state.namespace(arg0?)?.unwrap(), cb),
frag => unimplemented!("max/{frag:?}")
}
}),
Some("push") => output.place(&{
let axis = frags.next();
let arg = match axis { Some("x") | Some("y") => arg1, Some("xy") | None => arg2, _ => panic!("fixed: unsupported axis {axis:?}") };
let cb = Thunk::new(move|output: &mut O|state.view(output, &arg).unwrap());
match axis {
Some("xy") | None => Push::XY(state.namespace(arg0?)?.unwrap(), state.namespace(arg1?)?.unwrap(), cb),
Some("x") => Push::X(state.namespace(arg0?)?.unwrap(), cb),
Some("y") => Push::Y(state.namespace(arg0?)?.unwrap(), cb),
frag => unimplemented!("push/{frag:?}")
}
}),
_ => return Ok(false)
};
Ok(true)
}
/// Implement [Command] for given `State` and `handler`
#[macro_export] macro_rules! command {
($(<$($l:lifetime),+>)?|$self:ident:$Command:ty,$state:ident:$State:ty|$handler:expr) => {
impl$(<$($l),+>)? ::tengri::Command<$State> for $Command {
fn execute (&$self, $state: &mut $State) -> Perhaps<Self> {
Ok($handler)
}
}
};
}
#[macro_export] macro_rules! def_command (($Command:ident: |$state:ident: $State:ty| {
$($Variant:ident$({$($arg:ident:$Arg:ty),+ $(,)?})?=>$body:expr),* $(,)?
})=>{
#[derive(Debug)]
pub enum $Command {
$($Variant $({ $($arg: $Arg),* })?),*
}
impl Command<$State> for $Command {
fn execute (&self, $state: &mut $State) -> Perhaps<Self> {
match self {
$(Self::$Variant $({ $($arg),* })? => $body,)*
_ => unimplemented!("Command<{}>: {self:?}", stringify!($State)),
}
}
}
});
/// Implement [Handle] for given `State` and `handler`.
#[macro_export] macro_rules! handle {
(|$self:ident:$State:ty,$input:ident|$handler:expr) => {
impl<E: Engine> ::tengri::Handle<E> for $State {
fn handle (&mut $self, $input: &E) -> Perhaps<E::Handled> {
$handler
}
}
};
($E:ty: |$self:ident:$State:ty,$input:ident|$handler:expr) => {
impl ::tengri::Handle<$E> for $State {
fn handle (&mut $self, $input: &$E) ->
Perhaps<<$E as ::tengri::Input>::Handled>
{
$handler
}
}
}
}
#[macro_export] macro_rules! tui_main {
($expr:expr) => {
fn main () -> Usually<()> {
tengri::Tui::run(true, $expr)?;
Ok(())
}
};
}
#[macro_export] macro_rules! has_color {
(|$self:ident:$Struct:ident$(<$($L:lifetime),*$($T:ident$(:$U:path)?),*>)?|$cb:expr) => {
impl $(<$($L),*$($T $(: $U)?),*>)? HasColor for $Struct $(<$($L),*$($T),*>)? {
fn color (&$self) -> ItemColor { $cb }
}
}
}
macro_rules! border {
($($T:ident {
$nw:literal $n:literal $ne:literal $w:literal $e:literal $sw:literal $s:literal $se:literal
$($x:tt)*
}),+) => {$(
impl BorderStyle for $T {
const NW: &'static str = $nw;
const N: &'static str = $n;
const NE: &'static str = $ne;
const W: &'static str = $w;
const E: &'static str = $e;
const SW: &'static str = $sw;
const S: &'static str = $s;
const SE: &'static str = $se;
$($x)*
fn enabled (&self) -> bool { self.0 }
}
#[derive(Copy, Clone)] pub struct $T(pub bool, pub Style);
impl Layout<TuiOut> for $T {}
impl Draw<TuiOut> for $T {
fn draw (&self, to: &mut TuiOut) {
if self.enabled() { let _ = BorderStyle::draw(self, to); }
}
}
)+}
}
/// Run an app in the main loop.
pub fn tui_run <T: Send + Sync + Draw<TuiOut> + Handle<TuiIn> + 'static> (
join: bool,
state: &Arc<RwLock<T>>
) -> Usually<Arc<RwLock<Tui>>> {
let backend = CrosstermBackend::new(stdout());
let Size { width, height } = backend.size()?;
let tui = Arc::new(RwLock::new(Tui {
exited: Arc::new(AtomicBool::new(false)),
buffer: Buffer::empty(Rect { x: 0, y: 0, width, height }),
area: [0, 0, width, height],
perf: Default::default(),
backend,
}));
let _input_thread = tui_input(tui.clone(), state, Duration::from_millis(100));
tui.write().unwrap().setup()?;
let render_thread = tui_output(tui.clone(), state, Duration::from_millis(10))?;
if join {
match render_thread.join() {
Ok(result) => {
tui.write().unwrap().teardown()?;
println!("\n\rRan successfully: {result:?}\n\r");
},
Err(error) => {
tui.write().unwrap().teardown()?;
panic!("\n\rDraw thread failed: error={error:?}.\n\r")
},
}
}
Ok(tui)
}
pub fn tui_setup <W: Write> (
backend: &mut CrosstermBackend<W>
) -> Usually<()> {
let better_panic_handler = Settings::auto().verbosity(Verbosity::Full).create_panic_handler();
std::panic::set_hook(Box::new(move |info: &std::panic::PanicHookInfo|{
stdout().execute(LeaveAlternateScreen).unwrap();
CrosstermBackend::new(stdout()).show_cursor().unwrap();
disable_raw_mode().unwrap();
better_panic_handler(info);
}));
stdout().execute(EnterAlternateScreen)?;
backend.hide_cursor()?;
enable_raw_mode().map_err(Into::into)
}
pub fn tui_teardown <W: Write> (backend: &mut CrosstermBackend<W>) -> Usually<()> {
stdout().execute(LeaveAlternateScreen)?;
backend.show_cursor()?;
disable_raw_mode().map_err(Into::into)
}
pub fn tui_resized <W: Write> (
backend: &mut CrosstermBackend<W>,
buffer: &mut Buffer,
size: ratatui::prelude::Rect
) {
if buffer.area != size {
backend.clear_region(ClearType::All).unwrap();
buffer.resize(size);
buffer.reset();
}
}
pub fn tui_redrawn <'b, W: Write> (
backend: &mut CrosstermBackend<W>,
mut prev_buffer: &'b mut Buffer,
mut next_buffer: &'b mut Buffer
) {
let updates = prev_buffer.diff(&next_buffer);
backend.draw(updates.into_iter()).expect("failed to render");
Backend::flush(backend).expect("failed to flush output new_buffer");
std::mem::swap(&mut prev_buffer, &mut next_buffer);
next_buffer.reset();
}
pub fn tui_update (
buf: &mut Buffer, area: XYWH<u16>, callback: &impl Fn(&mut Cell, u16, u16)
) {
for row in 0..area.h() {
let y = area.y() + row;
for col in 0..area.w() {
let x = area.x() + col;
if x < buf.area.width && y < buf.area.height {
if let Some(cell) = buf.cell_mut(ratatui::prelude::Position { x, y }) {
callback(cell, col, row);
}
}
}
}
}
/// Spawn the output thread.
pub fn tui_output <T: Draw<TuiOut> + Send + Sync + 'static> (
engine: Arc<RwLock<Tui>>, state: &Arc<RwLock<T>>, timer: Duration
) -> Result<JoinHandle<()>, std::io::Error> {
let exited = engine.read().unwrap().exited.clone();
let engine = engine.clone();
let state = state.clone();
let Size { width, height } = engine.read().unwrap().backend.size().expect("get size failed");
let mut buffer = Buffer::empty(Rect { x: 0, y: 0, width, height });
std::thread::Builder::new()
.name("tui output thread".into())
.spawn(move || loop {
if exited.fetch_and(true, Relaxed) {
break
}
let t0 = engine.read().unwrap().perf.get_t0();
let Size { width, height } = engine.read().unwrap().backend.size()
.expect("get size failed");
if let Ok(state) = state.try_read() {
let size = Rect { x: 0, y: 0, width, height };
if buffer.area != size {
engine.write().unwrap().backend.clear_region(ClearType::All).expect("clear failed");
buffer.resize(size);
buffer.reset();
}
let mut output = TuiOut { buffer, area: XYWH(0, 0, width, height) };
state.draw(&mut output);
buffer = engine.write().unwrap().flip(output.buffer, size);
}
let t1 = (*engine.read().unwrap()).perf.get_t1(t0).unwrap();
buffer.set_string(0, 0, &format!("{:>3}.{:>3}ms", t1.as_millis(), t1.as_micros() % 1000), Style::default());
std::thread::sleep(timer);
})
}
/// Spawn the input thread.
pub fn tui_input <T: Handle<TuiIn> + Send + Sync + 'static> (
engine: Arc<RwLock<Tui>>, state: &Arc<RwLock<T>>, timer: Duration
) -> JoinHandle<()> {
let exited = engine.read().unwrap().exited.clone();
let state = state.clone();
spawn(move || loop {
if exited.fetch_and(true, Relaxed) {
break
}
if poll(timer).is_ok() {
let event = read().unwrap();
match event {
Event::Key(KeyEvent {
code: KeyCode::Char('c'),
modifiers: KeyModifiers::CONTROL,
kind: KeyEventKind::Press,
state: KeyEventState::NONE
}) => {
exited.store(true, Relaxed);
},
_ => {
let exited = exited.clone();
let event = TuiEvent::from_crossterm(event);
if let Err(e) = state.write().unwrap().handle(&TuiIn { exited, event }) {
panic!("{e}")
}
}
}
}
})
}
#[cfg(feature = "dsl")] pub fn evaluate_output_expression_tui <'a, S> (
state: &S, output: &mut TuiOut, expr: impl Expression + 'a
) -> Usually<bool> where
S: View<TuiOut, ()>
+ for<'b>Namespace<'b, bool>
+ for<'b>Namespace<'b, u16>
+ for<'b>Namespace<'b, Color>
{
// See `tengri::evaluate_output_expression`
let head = expr.head()?;
let mut frags = head.src()?.unwrap_or_default().split("/");
let args = expr.tail();
let arg0 = args.head();
let tail0 = args.tail();
let arg1 = tail0.head();
let tail1 = tail0.tail();
let _arg2 = tail1.head();
match frags.next() {
Some("text") => if let Some(src) = args?.src()? { output.place(&src) },
Some("fg") => {
let arg0 = arg0?.expect("fg: expected arg 0 (color)");
output.place(&Tui::fg(
Namespace::<Color>::namespace(state, arg0)?.unwrap_or_else(||panic!("fg: {arg0:?}: not a color")),
Thunk::new(move|output: &mut TuiOut|state.view(output, &arg1).unwrap()),
))
},
Some("bg") => {
let arg0 = arg0?.expect("bg: expected arg 0 (color)");
output.place(&Tui::bg(
Namespace::<Color>::namespace(state, arg0)?.unwrap_or_else(||panic!("bg: {arg0:?}: not a color")),
Thunk::new(move|output: &mut TuiOut|state.view(output, &arg1).unwrap()),
))
},
_ => return Ok(false)
};
Ok(true)
}
pub fn named_key (token: &str) -> Option<KeyCode> {
use KeyCode::*;
Some(match token {
"up" => Up,
"down" => Down,
"left" => Left,
"right" => Right,
"esc" | "escape" => Esc,
"enter" | "return" => Enter,
"delete" | "del" => Delete,
"backspace" => Backspace,
"tab" => Tab,
"space" => Char(' '),
"comma" => Char(','),
"period" => Char('.'),
"plus" => Char('+'),
"minus" | "dash" => Char('-'),
"equal" | "equals" => Char('='),
"underscore" => Char('_'),
"backtick" => Char('`'),
"lt" => Char('<'),
"gt" => Char('>'),
"cbopen" | "openbrace" => Char('{'),
"cbclose" | "closebrace" => Char('}'),
"bropen" | "openbracket" => Char('['),
"brclose" | "closebracket" => Char(']'),
"pgup" | "pageup" => PageUp,
"pgdn" | "pagedown" => PageDown,
"f1" => F(1),
"f2" => F(2),
"f3" => F(3),
"f4" => F(4),
"f5" => F(5),
"f6" => F(6),
"f7" => F(7),
"f8" => F(8),
"f9" => F(9),
"f10" => F(10),
"f11" => F(11),
"f12" => F(12),
_ => return None,
})
}
pub fn button_2 <'a> (key: impl Content<TuiOut>, label: impl Content<TuiOut>, editing: bool) -> impl Content<TuiOut> {
Tui::bold(true, Bsp::e(
Tui::fg_bg(Tui::orange(), Tui::g(0), Bsp::e(Tui::fg(Tui::g(0), &"▐"), Bsp::e(key, Tui::fg(Tui::g(96), &"▐")))),
When::new(!editing, Tui::fg_bg(Tui::g(255), Tui::g(96), label))))
}
pub fn button_3 <'a> (
key: impl Content<TuiOut>, label: impl Content<TuiOut>, value: impl Content<TuiOut>, editing: bool,
) -> impl Content<TuiOut> {
Tui::bold(true, Bsp::e(
Tui::fg_bg(Tui::orange(), Tui::g(0),
Bsp::e(Tui::fg(Tui::g(0), &"▐"), Bsp::e(key, Tui::fg(if editing { Tui::g(128) } else { Tui::g(96) }, "▐")))),
Bsp::e(
When::new(!editing, Bsp::e(Tui::fg_bg(Tui::g(255), Tui::g(96), label), Tui::fg_bg(Tui::g(128), Tui::g(96), &"▐"),)),
Bsp::e(Tui::fg_bg(Tui::g(224), Tui::g(128), value), Tui::fg_bg(Tui::g(128), Reset, &"▌"), ))))
}
border! {
Square {
"┌" "─" "┐"
"│" "│"
"└" "─" "┘" fn style (&self) -> Option<Style> { Some(self.1) }
},
SquareBold {
"┏" "━" "┓"
"┃" "┃"
"┗" "━" "┛" fn style (&self) -> Option<Style> { Some(self.1) }
},
TabLike {
"╭" "─" "╮"
"│" "│"
"│" " " "│" fn style (&self) -> Option<Style> { Some(self.1) }
},
Lozenge {
"╭" "─" "╮"
"│" "│"
"╰" "─" "╯" fn style (&self) -> Option<Style> { Some(self.1) }
},
Brace {
"╭" "" "╮"
"│" "│"
"╰" "" "╯" fn style (&self) -> Option<Style> { Some(self.1) }
},
LozengeDotted {
"╭" "┅" "╮"
"┇" "┇"
"╰" "┅" "╯" fn style (&self) -> Option<Style> { Some(self.1) }
},
Quarter {
"▎" "▔" "🮇"
"▎" "🮇"
"▎" "▁" "🮇" fn style (&self) -> Option<Style> { Some(self.1) }
},
QuarterV {
"▎" "" "🮇"
"▎" "🮇"
"▎" "" "🮇" fn style (&self) -> Option<Style> { Some(self.1) }
},
Chamfer {
"🭂" "▔" "🭍"
"▎" "🮇"
"🭓" "▁" "🭞" fn style (&self) -> Option<Style> { Some(self.1) }
},
Corners {
"🬆" "" "🬊" // 🬴 🬸
"" ""
"🬱" "" "🬵" fn style (&self) -> Option<Style> { Some(self.1) }
},
CornersTall {
"🭽" "" "🭾"
"" ""
"🭼" "" "🭿" fn style (&self) -> Option<Style> { Some(self.1) }
},
Outer {
"🭽" "▔" "🭾"
"▏" "▕"
"🭼" "▁" "🭿"
const W0: &'static str = "[";
const E0: &'static str = "]";
const N0: &'static str = "⎴";
const S0: &'static str = "⎵";
fn style (&self) -> Option<Style> { Some(self.1) }
},
Thick {
"▄" "▄" "▄"
"█" "█"
"▀" "▀" "▀"
fn style (&self) -> Option<Style> { Some(self.1) }
},
Rugged {
"▄" "▂" "▄"
"▐" "▌"
"▀" "🮂" "▀"
fn style (&self) -> Option<Style> { Some(self.1) }
},
Skinny {
"▗" "▄" "▖"
"▐" "▌"
"▝" "▀" "▘"
fn style (&self) -> Option<Style> { Some(self.1) }
},
Brackets {
"⎡" "" "⎤"
"" ""
"⎣" "" "⎦"
const W0: &'static str = "[";
const E0: &'static str = "]";
const N0: &'static str = "⎴";
const S0: &'static str = "⎵";
fn style (&self) -> Option<Style> { Some(self.1) }
},
Reticle {
"⎡" "" "⎤"
"" ""
"⎣" "" "⎦"
const W0: &'static str = "╟";
const E0: &'static str = "╢";
const N0: &'static str = "┯";
const S0: &'static str = "┷";
fn style (&self) -> Option<Style> { Some(self.1) }
}
}
pub fn okhsl_to_rgb (color: Okhsl<f32>) -> Color {
let Srgb { red, green, blue, .. }: Srgb<f32> = Srgb::from_color_unclamped(color);
Color::Rgb((red * 255.0) as u8, (green * 255.0) as u8, (blue * 255.0) as u8,)
}
pub fn rgb_to_okhsl (color: Color) -> Okhsl<f32> {
if let Color::Rgb(r, g, b) = color {
Okhsl::from_color(Srgb::new(r as f32 / 255.0, g as f32 / 255.0, b as f32 / 255.0))
} else {
unreachable!("only Color::Rgb is supported")
}
}
/// Trim string with [unicode_width].
pub fn trim_string (max_width: usize, input: impl AsRef<str>) -> String {
let input = input.as_ref();
let mut output = Vec::with_capacity(input.len());
let mut width: usize = 1;
let mut chars = input.chars();
while let Some(c) = chars.next() {
if width > max_width {
break
}
output.push(c);
width += c.width().unwrap_or(0);
}
return output.into_iter().collect()
}
pub(crate) fn width_chars_max (max: u16, text: impl AsRef<str>) -> u16 {
let mut width: u16 = 0;
let mut chars = text.as_ref().chars();
while let Some(c) = chars.next() {
width += c.width().unwrap_or(0) as u16;
if width > max {
break
}
}
return width
}
#[inline] pub fn map_south<O: Out>(
item_offset: O::Unit,
item_height: O::Unit,
item: impl Content<O>
) -> impl Content<O> {
Push::Y(item_offset, Fixed::Y(item_height, Fill::X(item)))
}
#[inline] pub fn map_south_west<O: Out>(
item_offset: O::Unit,
item_height: O::Unit,
item: impl Content<O>
) -> impl Content<O> {
Push::Y(item_offset, Align::nw(Fixed::Y(item_height, Fill::X(item))))
}
#[inline] pub fn map_east<O: Out>(
item_offset: O::Unit,
item_width: O::Unit,
item: impl Content<O>
) -> impl Content<O> {
Push::X(item_offset, Align::w(Fixed::X(item_width, Fill::Y(item))))
}
#[cfg(test)] mod test {
use proptest::{prelude::*, option::of};
use proptest_derive::Arbitrary;
use crate::*;
proptest! {
#[test] fn proptest_direction (
d in prop_oneof![
Just(North), Just(South),
Just(East), Just(West),
Just(Above), Just(Below)
],
x in u16::MIN..u16::MAX,
y in u16::MIN..u16::MAX,
w in u16::MIN..u16::MAX,
h in u16::MIN..u16::MAX,
a in u16::MIN..u16::MAX,
) {
let _ = d.split_fixed(XYWH(x, y, w, h), a);
}
}
proptest! {
#[test] fn proptest_area (
x in u16::MIN..u16::MAX,
y in u16::MIN..u16::MAX,
w in u16::MIN..u16::MAX,
h in u16::MIN..u16::MAX,
a in u16::MIN..u16::MAX,
b in u16::MIN..u16::MAX,
) {
let _: XYWH<u16> = XYWH::zero();
//let _: XYWH<u16> = XYWH::from_position([a, b]);
//let _: XYWH<u16> = XYWH::from_size([a, b]);
let area: XYWH<u16> = XYWH(x, y, w, h);
//let _ = area.expect_min(a, b);
let _ = area.xy();
let _ = area.wh();
//let _ = area.xywh();
let _ = area.clipped_h(a);
let _ = area.clipped_w(b);
let _ = area.clipped(WH(a, b));
//let _ = area.set_w(a);
//let _ = area.set_h(b);
let _ = area.x2();
let _ = area.y2();
let _ = area.lrtb();
let _ = area.center();
let _ = area.centered();
let _ = area.centered_x(a);
let _ = area.centered_y(b);
let _ = area.centered_xy([a, b]);
}
}
proptest! {
#[test] fn proptest_size (
x in u16::MIN..u16::MAX,
y in u16::MIN..u16::MAX,
a in u16::MIN..u16::MAX,
b in u16::MIN..u16::MAX,
) {
let size = WH(x, y);
let _ = size.w();
let _ = size.h();
let _ = size.wh();
let _ = size.clip_w(a);
let _ = size.clip_h(b);
//let _ = size.expect_min(a, b);
//let _ = size.to_area_pos();
//let _ = size.to_area_size();
}
}
macro_rules! test_op_transform {
($fn:ident, $Op:ident) => {
proptest! {
#[test] fn $fn (
op_x in of(u16::MIN..u16::MAX),
op_y in of(u16::MIN..u16::MAX),
content in "\\PC*",
x in u16::MIN..u16::MAX,
y in u16::MIN..u16::MAX,
w in u16::MIN..u16::MAX,
h in u16::MIN..u16::MAX,
) {
if let Some(op) = match (op_x, op_y) {
(Some(x), Some(y)) => Some($Op::XY(x, y, content)),
(Some(x), None) => Some($Op::X(x, content)),
(None, Some(y)) => Some($Op::Y(y, content)),
_ => None
} {
//assert_eq!(Content::layout(&op, [x, y, w, h]),
//Draw::layout(&op, [x, y, w, h]));
}
}
}
}
}
test_op_transform!(proptest_op_fixed, Fixed);
test_op_transform!(proptest_op_min, Min);
test_op_transform!(proptest_op_max, Max);
test_op_transform!(proptest_op_push, Push);
test_op_transform!(proptest_op_pull, Pull);
test_op_transform!(proptest_op_shrink, Shrink);
test_op_transform!(proptest_op_expand, Expand);
test_op_transform!(proptest_op_padding, Pad);
proptest! {
#[test] fn proptest_op_bsp (
d in prop_oneof![
Just(North), Just(South),
Just(East), Just(West),
Just(Above), Just(Below)
],
a in "\\PC*",
b in "\\PC*",
x in u16::MIN..u16::MAX,
y in u16::MIN..u16::MAX,
w in u16::MIN..u16::MAX,
h in u16::MIN..u16::MAX,
) {
let bsp = Bsp(d, a, b);
//assert_eq!(
//Content::layout(&bsp, [x, y, w, h]),
//Draw::layout(&bsp, [x, y, w, h]),
//);
}
}
#[test] fn test_tui_engine () -> Usually<()> {
//use std::sync::{Arc, RwLock};
struct TestComponent(String);
impl Draw<TuiOut> for TestComponent {
fn draw (&self, _to: &mut TuiOut) {
}
}
impl Handle<TuiIn> for TestComponent {
fn handle (&mut self, _from: &TuiIn) -> Perhaps<bool> {
Ok(None)
}
}
let engine = Tui::run(false, TestComponent("hello world".into()))?;
engine.read().unwrap().exited.store(true, std::sync::atomic::Ordering::Relaxed);
//engine.run(&state)?;
Ok(())
}
}

769
output/src/out_impls.rs → tengri/tengri_impl.rs
View file

@ -1,5 +1,116 @@
use crate::*; use crate::*;
use Alignment::*; use Alignment::*;
use Direction::*;
use unicode_width::{UnicodeWidthStr, UnicodeWidthChar};
use rand::{thread_rng, distributions::uniform::UniformSampler};
macro_rules! layout_op_xy (
// Variant for layout ops that take no coordinates
(0: $T: ident) => {
impl<A> $T<A> {
#[inline] pub const fn inner (&self) -> &A {
match self { Self::X(c) | Self::Y(c) | Self::XY(c) => c }
}
}
impl<O: Out, T: Content<O>> Draw<O> for $T<T> {
fn draw (&self, to: &mut O) { Bounded(self.layout(to.area()), self.inner()).draw(to) }
}
};
// Variant for layout ops that take one coordinate
(1: $T: ident) => {
impl<U, A> $T<U, A> {
#[inline] pub const fn inner (&self) -> &A {
match self { Self::X(_, c) | Self::Y(_, c) | Self::XY(_, _, c) => c, }
}
}
impl<O: Out, T: Content<O>> Draw<O> for $T<O::Unit, T> {
fn draw (&self, to: &mut O) { Bounded(self.layout(to.area()), self.inner()).draw(to) }
}
impl<U: Coord, A> $T<U, A> {
#[inline] pub fn dx (&self) -> U {
match self { Self::X(x, _) | Self::XY(x, ..) => *x, _ => 0.into() }
}
#[inline] pub fn dy (&self) -> U {
match self { Self::Y(y, _) | Self::XY(y, ..) => *y, _ => 0.into() }
}
}
};
(1 opt: $T: ident) => {
impl<U, A> $T<U, A> {
#[inline] pub const fn inner (&self) -> &A {
match self { Self::X(_, c) | Self::Y(_, c) | Self::XY(_, _, c) => c, }
}
}
impl<O: Out, T: Content<O>> Draw<O> for $T<O::Unit, T> {
fn draw (&self, to: &mut O) { Bounded(self.layout(to.area()), self.inner()).draw(to) }
}
impl<U: Coord, A> $T<U, A> {
#[inline] pub const fn dx (&self) -> Option<U> {
match self { Self::X(x, _) | Self::XY(x, ..) => Some(*x), _ => None }
}
#[inline] pub const fn dy (&self) -> Option<U> {
match self { Self::Y(y, _) | Self::XY(y, ..) => Some(*y), _ => None }
}
}
};
);
// Implement layout op that increments X and/or Y by fixed amount.
macro_rules! push_pull(($T:ident: $method: ident)=>{
layout_op_xy!(1: $T);
impl<O: Out, T: Layout<O>> Layout<O> for $T<O::Unit, T> {
fn layout_x (&self, area: XYWH<O::Unit>) -> O::Unit { area.x().$method(self.dx()) }
fn layout_y (&self, area: XYWH<O::Unit>) -> O::Unit { area.y().$method(self.dy()) }
}
});
macro_rules! impl_map_direction (($name:ident, $axis:ident, $align:ident)=>{
impl<'a, O, A, B, I, F> Map<
O, A, Push<O::Unit, Align<Fixed<O::Unit, Fill<B>>>>, I, F, fn(A, usize)->B
> where
O: Out,
B: Draw<O>,
I: Iterator<Item = A> + Send + Sync + 'a,
F: Fn() -> I + Send + Sync + 'a
{
pub const fn $name (
size: O::Unit,
get_iter: F,
get_item: impl Fn(A, usize)->B + Send + Sync
) -> Map<
O, A,
Push<O::Unit, Align<Fixed<O::Unit, B>>>,
I, F,
impl Fn(A, usize)->Push<O::Unit, Align<Fixed<O::Unit, B>>> + Send + Sync
> {
Map {
__: PhantomData,
get_iter,
get_item: move |item: A, index: usize|{
// FIXME: multiply
let mut push: O::Unit = O::Unit::from(0u16);
for _ in 0..index {
push = push + size;
}
Push::$axis(push, Align::$align(Fixed::$axis(size, get_item(item, index))))
}
}
}
}
});
impl<S, T: Command<S>> Command<S> for Option<T> {
fn execute (&self, _: &mut S) -> Perhaps<Self> {
Ok(None)
}
fn delegate <U> (&self, _: &mut S, _: impl Fn(Self)->U) -> Perhaps<U>
where Self: Sized
{
Ok(None)
}
}
impl Coord for u16 { impl Coord for u16 {
fn plus (self, other: Self) -> Self { self.saturating_add(other) } fn plus (self, other: Self) -> Self { self.saturating_add(other) }
@ -744,30 +855,6 @@ impl<'a, O, A, B, I, F, G> Draw<O> for Map<O, A, B, I, F, G> where
} }
} }
#[inline] pub fn map_south<O: Out>(
item_offset: O::Unit,
item_height: O::Unit,
item: impl Content<O>
) -> impl Content<O> {
Push::Y(item_offset, Fixed::Y(item_height, Fill::X(item)))
}
#[inline] pub fn map_south_west<O: Out>(
item_offset: O::Unit,
item_height: O::Unit,
item: impl Content<O>
) -> impl Content<O> {
Push::Y(item_offset, Align::nw(Fixed::Y(item_height, Fill::X(item))))
}
#[inline] pub fn map_east<O: Out>(
item_offset: O::Unit,
item_width: O::Unit,
item: impl Content<O>
) -> impl Content<O> {
Push::X(item_offset, Align::w(Fixed::X(item_width, Fill::Y(item))))
}
impl Tryptich<(), (), ()> { impl Tryptich<(), (), ()> {
pub fn center (h: u16) -> Self { pub fn center (h: u16) -> Self {
Self { h, top: false, left: (0, ()), middle: (0, ()), right: (0, ()) } Self { h, top: false, left: (0, ()), middle: (0, ()), right: (0, ()) }
@ -894,3 +981,637 @@ impl PerfModel {
} }
} }
} }
impl Tui {
/// Create and launch a terminal user interface.
pub fn run <T> (join: bool, state: T) -> Usually<Arc<RwLock<Self>>> where
T: Handle<TuiIn> + Draw<TuiOut> + Send + Sync + 'static
{
tui_run(join, &Arc::new(RwLock::new(state)))
}
/// True if done
pub fn exited (&self) -> bool { self.exited.fetch_and(true, Relaxed) }
/// Prepare before run
pub fn setup (&mut self) -> Usually<()> { tui_setup(&mut self.backend) }
/// Clean up after run
pub fn teardown (&mut self) -> Usually<()> { tui_teardown(&mut self.backend) }
/// Apply changes to the display buffer.
pub fn flip (&mut self, mut buffer: Buffer, size: ratatui::prelude::Rect) -> Buffer {
tui_resized(&mut self.backend, &mut self.buffer, size);
tui_redrawn(&mut self.backend, &mut self.buffer, &mut buffer);
buffer
}
}
impl Input for TuiIn {
type Event = TuiEvent;
type Handled = bool;
fn event (&self) -> &TuiEvent { &self.event }
fn done (&self) { self.exited.store(true, Relaxed); }
fn is_done (&self) -> bool { self.exited.fetch_and(true, Relaxed) }
}
impl Ord for TuiEvent {
fn cmp (&self, other: &Self) -> std::cmp::Ordering {
self.partial_cmp(other)
.unwrap_or_else(||format!("{:?}", self).cmp(&format!("{other:?}"))) // FIXME perf
}
}
impl TuiEvent {
pub fn from_crossterm (event: Event) -> Self { Self(event) }
#[cfg(feature = "dsl")] pub fn from_dsl (dsl: impl Language) -> Perhaps<Self> {
Ok(TuiKey::from_dsl(dsl)?.to_crossterm().map(Self))
}
}
impl TuiKey {
const SPLIT: char = '/';
#[cfg(feature = "dsl")] pub fn from_dsl (dsl: impl Language) -> Usually<Self> {
if let Some(word) = dsl.word()? {
let word = word.trim();
Ok(if word == ":char" {
Self(None, KeyModifiers::NONE)
} else if word.chars().nth(0) == Some('@') {
let mut key = None;
let mut modifiers = KeyModifiers::NONE;
let mut tokens = word[1..].split(Self::SPLIT).peekable();
while let Some(token) = tokens.next() {
if tokens.peek().is_some() {
match token {
"ctrl" | "Ctrl" | "c" | "C" => modifiers |= KeyModifiers::CONTROL,
"alt" | "Alt" | "m" | "M" => modifiers |= KeyModifiers::ALT,
"shift" | "Shift" | "s" | "S" => {
modifiers |= KeyModifiers::SHIFT;
// + TODO normalize character case, BackTab, etc.
},
_ => panic!("unknown modifier {token}"),
}
} else {
key = if token.len() == 1 {
Some(KeyCode::Char(token.chars().next().unwrap()))
} else {
Some(named_key(token).unwrap_or_else(||panic!("unknown character {token}")))
}
}
}
Self(key, modifiers)
} else {
return Err(format!("TuiKey: unexpected: {word}").into())
})
} else {
return Err(format!("TuiKey: unspecified").into())
}
}
pub fn to_crossterm (&self) -> Option<Event> {
self.0.map(|code|Event::Key(KeyEvent {
code,
modifiers: self.1,
kind: KeyEventKind::Press,
state: KeyEventState::NONE,
}))
}
}
impl Out for TuiOut {
type Unit = u16;
#[inline] fn area (&self) -> XYWH<u16> { self.area }
#[inline] fn area_mut (&mut self) -> &mut XYWH<u16> { &mut self.area }
#[inline] fn place_at <'t, T: Draw<Self> + ?Sized> (&mut self, area: XYWH<u16>, content: &'t T) {
let last = self.area();
*self.area_mut() = area;
content.draw(self);
*self.area_mut() = last;
}
}
impl TuiOut {
#[inline] pub fn with_rect (&mut self, area: XYWH<u16>) -> &mut Self { self.area = area; self }
pub fn update (&mut self, area: XYWH<u16>, callback: &impl Fn(&mut Cell, u16, u16)) { tui_update(&mut self.buffer, area, callback); }
pub fn fill_char (&mut self, area: XYWH<u16>, c: char) { self.update(area, &|cell,_,_|{cell.set_char(c);}) }
pub fn fill_bg (&mut self, area: XYWH<u16>, color: Color) { self.update(area, &|cell,_,_|{cell.set_bg(color);}) }
pub fn fill_fg (&mut self, area: XYWH<u16>, color: Color) { self.update(area, &|cell,_,_|{cell.set_fg(color);}) }
pub fn fill_mod (&mut self, area: XYWH<u16>, on: bool, modifier: Modifier) {
if on {
self.update(area, &|cell,_,_|cell.modifier.insert(modifier))
} else {
self.update(area, &|cell,_,_|cell.modifier.remove(modifier))
}
}
pub fn fill_bold (&mut self, area: XYWH<u16>, on: bool) { self.fill_mod(area, on, Modifier::BOLD) }
pub fn fill_reversed (&mut self, area: XYWH<u16>, on: bool) { self.fill_mod(area, on, Modifier::REVERSED) }
pub fn fill_crossed_out (&mut self, area: XYWH<u16>, on: bool) { self.fill_mod(area, on, Modifier::CROSSED_OUT) }
pub fn fill_ul (&mut self, area: XYWH<u16>, color: Option<Color>) {
if let Some(color) = color {
self.update(area, &|cell,_,_|{
cell.modifier.insert(ratatui::prelude::Modifier::UNDERLINED);
cell.underline_color = color;
})
} else {
self.update(area, &|cell,_,_|{
cell.modifier.remove(ratatui::prelude::Modifier::UNDERLINED);
})
}
}
pub fn tint_all (&mut self, fg: Color, bg: Color, modifier: Modifier) {
for cell in self.buffer.content.iter_mut() {
cell.fg = fg;
cell.bg = bg;
cell.modifier = modifier;
}
}
pub fn blit (&mut self, text: &impl AsRef<str>, x: u16, y: u16, style: Option<Style>) {
let text = text.as_ref();
let buf = &mut self.buffer;
let style = style.unwrap_or(Style::default());
if x < buf.area.width && y < buf.area.height {
buf.set_string(x, y, text, style);
}
}
/// Write a line of text
///
/// TODO: do a paragraph (handle newlines)
pub fn text (&mut self, text: &impl AsRef<str>, x0: u16, y: u16, max_width: u16) {
let text = text.as_ref();
let buf = &mut self.buffer;
let mut string_width: u16 = 0;
for character in text.chars() {
let x = x0 + string_width;
let character_width = character.width().unwrap_or(0) as u16;
string_width += character_width;
if string_width > max_width {
break
}
if let Some(cell) = buf.cell_mut(ratatui::prelude::Position { x, y }) {
cell.set_char(character);
} else {
break
}
}
}
}
impl BigBuffer {
pub fn new (width: usize, height: usize) -> Self {
Self { width, height, content: vec![Cell::default(); width*height] }
}
pub fn get (&self, x: usize, y: usize) -> Option<&Cell> {
let i = self.index_of(x, y);
self.content.get(i)
}
pub fn get_mut (&mut self, x: usize, y: usize) -> Option<&mut Cell> {
let i = self.index_of(x, y);
self.content.get_mut(i)
}
pub fn index_of (&self, x: usize, y: usize) -> usize {
y * self.width + x
}
}
// A single color within item theme parameters, in OKHSL and RGB representations.
impl ItemColor {
pub const fn from_rgb (rgb: Color) -> Self {
Self { rgb, okhsl: Okhsl::new_const(OklabHue::new(0.0), 0.0, 0.0) }
}
pub const fn from_okhsl (okhsl: Okhsl<f32>) -> Self {
Self { rgb: Color::Rgb(0, 0, 0), okhsl }
}
pub fn random () -> Self {
let mut rng = thread_rng();
let lo = Okhsl::new(-180.0, 0.01, 0.25);
let hi = Okhsl::new( 180.0, 0.9, 0.5);
UniformOkhsl::new(lo, hi).sample(&mut rng).into()
}
pub fn random_dark () -> Self {
let mut rng = thread_rng();
let lo = Okhsl::new(-180.0, 0.025, 0.075);
let hi = Okhsl::new( 180.0, 0.5, 0.150);
UniformOkhsl::new(lo, hi).sample(&mut rng).into()
}
pub fn random_near (color: Self, distance: f32) -> Self {
color.mix(Self::random(), distance)
}
pub fn mix (&self, other: Self, distance: f32) -> Self {
if distance > 1.0 { panic!("color mixing takes distance between 0.0 and 1.0"); }
self.okhsl.mix(other.okhsl, distance).into()
}
}
impl ItemTheme {
pub const G: [Self;256] = {
let mut builder = konst::array::ArrayBuilder::new();
while !builder.is_full() {
let index = builder.len() as u8;
let light = (index as f64 * 1.15) as u8;
let lighter = (index as f64 * 1.7) as u8;
let lightest = (index as f64 * 1.85) as u8;
let dark = (index as f64 * 0.9) as u8;
let darker = (index as f64 * 0.6) as u8;
let darkest = (index as f64 * 0.3) as u8;
builder.push(ItemTheme {
base: ItemColor::from_rgb(Color::Rgb(index, index, index )),
light: ItemColor::from_rgb(Color::Rgb(light, light, light, )),
lighter: ItemColor::from_rgb(Color::Rgb(lighter, lighter, lighter, )),
lightest: ItemColor::from_rgb(Color::Rgb(lightest, lightest, lightest, )),
dark: ItemColor::from_rgb(Color::Rgb(dark, dark, dark, )),
darker: ItemColor::from_rgb(Color::Rgb(darker, darker, darker, )),
darkest: ItemColor::from_rgb(Color::Rgb(darkest, darkest, darkest, )),
});
}
builder.build()
};
pub fn random () -> Self { ItemColor::random().into() }
pub fn random_near (color: Self, distance: f32) -> Self {
color.base.mix(ItemColor::random(), distance).into()
}
pub const G00: Self = {
let color: ItemColor = ItemColor {
okhsl: Okhsl { hue: OklabHue::new(0.0), lightness: 0.0, saturation: 0.0 },
rgb: Color::Rgb(0, 0, 0)
};
Self {
base: color,
light: color,
lighter: color,
lightest: color,
dark: color,
darker: color,
darkest: color,
}
};
pub fn from_tui_color (base: Color) -> Self {
Self::from_item_color(ItemColor::from_rgb(base))
}
pub fn from_item_color (base: ItemColor) -> Self {
let mut light = base.okhsl;
light.lightness = (light.lightness * 1.3).min(1.0);
let mut lighter = light;
lighter.lightness = (lighter.lightness * 1.3).min(1.0);
let mut lightest = base.okhsl;
lightest.lightness = 0.95;
let mut dark = base.okhsl;
dark.lightness = (dark.lightness * 0.75).max(0.0);
dark.saturation = (dark.saturation * 0.75).max(0.0);
let mut darker = dark;
darker.lightness = (darker.lightness * 0.66).max(0.0);
darker.saturation = (darker.saturation * 0.66).max(0.0);
let mut darkest = darker;
darkest.lightness = 0.1;
darkest.saturation = (darkest.saturation * 0.50).max(0.0);
Self {
base,
light: light.into(),
lighter: lighter.into(),
lightest: lightest.into(),
dark: dark.into(),
darker: darker.into(),
darkest: darkest.into(),
}
}
}
impl<T> Phat<T> {
pub const LO: &'static str = "▄";
pub const HI: &'static str = "▀";
/// A phat line
pub fn lo (fg: Color, bg: Color) -> impl Content<TuiOut> {
Fixed::Y(1, Tui::fg_bg(fg, bg, Repeat::X(Self::LO)))
}
/// A phat line
pub fn hi (fg: Color, bg: Color) -> impl Content<TuiOut> {
Fixed::Y(1, Tui::fg_bg(fg, bg, Repeat::X(Self::HI)))
}
}
impl Scrollbar {
const ICON_DEC_V: &[char] = &['▲'];
const ICON_INC_V: &[char] = &['▼'];
const ICON_DEC_H: &[char] = &[' ', '🞀', ' '];
const ICON_INC_H: &[char] = &[' ', '🞂', ' '];
}
impl<'a, T: AsRef<str>> TrimString<T> {
fn as_ref (&self) -> TrimStringRef<'_, T> { TrimStringRef(self.0, &self.1) }
}
impl<O: Out, T: Draw<O>> ErrorBoundary<O, T> {
pub fn new (content: Perhaps<T>) -> Self { Self(Default::default(), content) }
}
mod content {
use super::*;
impl<S: BorderStyle, W: Content<TuiOut>> HasContent<TuiOut> for Bordered<S, W> {
fn content (&self) -> impl Content<TuiOut> {
Fill::XY(lay!( When::new(self.0, Border(self.0, self.1)), Pad::XY(1, 1, &self.2) ))
}
}
impl<
A: Content<TuiOut>,
B: Content<TuiOut>,
C: Content<TuiOut>,
> HasContent<TuiOut> for Tryptich<A, B, C> {
fn content (&self) -> impl Content<TuiOut> {
let Self { top, h, left: (w_a, ref a), middle: (w_b, ref b), right: (w_c, ref c) } = *self;
Fixed::Y(h, if top {
Bsp::a(
Fill::X(Align::n(Fixed::X(w_b, Align::x(Tui::bg(Color::Reset, b))))),
Bsp::a(
Fill::X(Align::nw(Fixed::X(w_a, Tui::bg(Color::Reset, a)))),
Fill::X(Align::ne(Fixed::X(w_c, Tui::bg(Color::Reset, c)))),
),
)
} else {
Bsp::a(
Fill::XY(Align::c(Fixed::X(w_b, Align::x(Tui::bg(Color::Reset, b))))),
Bsp::a(
Fill::XY(Align::w(Fixed::X(w_a, Tui::bg(Color::Reset, a)))),
Fill::XY(Align::e(Fixed::X(w_c, Tui::bg(Color::Reset, c)))),
),
)
})
}
}
impl<T: Content<TuiOut>> HasContent<TuiOut> for Phat<T> {
fn content (&self) -> impl Content<TuiOut> {
let [fg, bg, hi, lo] = self.colors;
let top = Fixed::Y(1, Self::lo(bg, hi));
let low = Fixed::Y(1, Self::hi(bg, lo));
let content = Tui::fg_bg(fg, bg, &self.content);
Min::XY(self.width, self.height, Bsp::s(top, Bsp::n(low, Fill::XY(content))))
}
}
}
mod layout {
use super::*;
impl<T: Content<TuiOut>> Layout<TuiOut> for Modify<T> {}
impl<T: Content<TuiOut>> Layout<TuiOut> for Styled<T> {}
impl Layout<TuiOut> for Repeat<'_> {}
impl Layout<TuiOut> for &str {
fn layout (&self, to: XYWH<u16>) -> XYWH<u16> {
to.centered_xy([width_chars_max(to.w(), self), 1])
}
}
impl Layout<TuiOut> for String {
fn layout (&self, to: XYWH<u16>) -> XYWH<u16> {
self.as_str().layout(to)
}
}
impl Layout<TuiOut> for Arc<str> {
fn layout (&self, to: XYWH<u16>) -> XYWH<u16> {
self.as_ref().layout(to)
}
}
impl<'a, T: AsRef<str>> Layout<TuiOut> for TrimString<T> {
fn layout (&self, to: XYWH<u16>) -> XYWH<u16> {
Layout::layout(&self.as_ref(), to)
}
}
impl<'a, T: AsRef<str>> Layout<TuiOut> for TrimStringRef<'a, T> {
fn layout (&self, to: XYWH<u16>) -> XYWH<u16> {
XYWH(to.x(), to.y(), to.w().min(self.0).min(self.1.as_ref().width() as u16), to.h())
}
}
}
mod draw {
use super::*;
impl<T: Draw<TuiOut>> Draw<TuiOut> for ErrorBoundary<TuiOut, T> {
fn draw (&self, to: &mut TuiOut) {
match self.1.as_ref() {
Ok(Some(content)) => content.draw(to),
Ok(None) => to.blit(&"empty?", 0, 0, Some(Style::default().yellow())),
Err(e) => {
let err_fg = Color::Rgb(255,224,244);
let err_bg = Color::Rgb(96,24,24);
let title = Bsp::e(Tui::bold(true, "oops. "), "rendering failed.");
let error = Bsp::e("\"why?\" ", Tui::bold(true, format!("{e}")));
to.place(&Tui::fg_bg(err_fg, err_bg, Bsp::s(title, error)))
}
}
}
}
impl Draw<TuiOut> for u64 {
fn draw (&self, _to: &mut TuiOut) {
todo!()
}
}
impl Draw<TuiOut> for f64 {
fn draw (&self, _to: &mut TuiOut) {
todo!()
}
}
impl Draw<TuiOut> for Repeat<'_> {
fn draw (&self, to: &mut TuiOut) {
let XYWH(x, y, w, h) = to.area();
match self {
Self::X(c) => {
for x in x..x+w {
if let Some(cell) = to.buffer.cell_mut(Position::from((x, y))) {
cell.set_symbol(&c);
}
}
},
Self::Y(c) => {
for y in y..y+h {
if let Some(cell) = to.buffer.cell_mut(Position::from((x, y))) {
cell.set_symbol(&c);
}
}
},
Self::XY(c) => {
let a = c.len();
for (_v, y) in (y..y+h).enumerate() {
for (u, x) in (x..x+w).enumerate() {
if let Some(cell) = to.buffer.cell_mut(Position::from((x, y))) {
let u = u % a;
cell.set_symbol(&c[u..u+1]);
}
}
}
},
}
}
}
impl Draw<TuiOut> for Scrollbar {
fn draw (&self, to: &mut TuiOut) {
let XYWH(x1, y1, w, h) = to.area();
match self {
Self::X { .. } => {
let x2 = x1 + w;
for (i, x) in (x1..=x2).enumerate() {
if let Some(cell) = to.buffer.cell_mut(Position::from((x, y1))) {
if i < (Self::ICON_DEC_H.len()) {
cell.set_fg(Rgb(255, 255, 255));
cell.set_bg(Rgb(0, 0, 0));
cell.set_char(Self::ICON_DEC_H[i as usize]);
} else if i > (w as usize - Self::ICON_INC_H.len()) {
cell.set_fg(Rgb(255, 255, 255));
cell.set_bg(Rgb(0, 0, 0));
cell.set_char(Self::ICON_INC_H[w as usize - i]);
} else if false {
cell.set_fg(Rgb(255, 255, 255));
cell.set_bg(Reset);
cell.set_char('━');
} else {
cell.set_fg(Rgb(0, 0, 0));
cell.set_bg(Reset);
cell.set_char('╌');
}
}
}
},
Self::Y { .. } => {
let y2 = y1 + h;
for (i, y) in (y1..=y2).enumerate() {
if let Some(cell) = to.buffer.cell_mut(Position::from((x1, y))) {
if (i as usize) < (Self::ICON_DEC_V.len()) {
cell.set_fg(Rgb(255, 255, 255));
cell.set_bg(Rgb(0, 0, 0));
cell.set_char(Self::ICON_DEC_V[i as usize]);
} else if (i as usize) > (h as usize - Self::ICON_INC_V.len()) {
cell.set_fg(Rgb(255, 255, 255));
cell.set_bg(Rgb(0, 0, 0));
cell.set_char(Self::ICON_INC_V[h as usize - i]);
} else if false {
cell.set_fg(Rgb(255, 255, 255));
cell.set_bg(Reset);
cell.set_char('‖'); // ━
} else {
cell.set_fg(Rgb(0, 0, 0));
cell.set_bg(Reset);
cell.set_char('╎'); // ━
}
}
}
},
}
}
}
impl Draw<TuiOut> for &str {
fn draw (&self, to: &mut TuiOut) {
let XYWH(x, y, w, ..) = self.layout(to.area());
to.text(&self, x, y, w)
}
}
impl Draw<TuiOut> for String {
fn draw (&self, to: &mut TuiOut) {
self.as_str().draw(to)
}
}
impl Draw<TuiOut> for Arc<str> {
fn draw (&self, to: &mut TuiOut) { self.as_ref().draw(to) }
}
impl<T: Content<TuiOut>> Draw<TuiOut> for Foreground<Color, T> {
fn draw (&self, to: &mut TuiOut) {
let area = self.layout(to.area());
to.fill_fg(area, self.0);
to.place_at(area, &self.1);
}
}
impl<T: Content<TuiOut>> Draw<TuiOut> for Background<Color, T> {
fn draw (&self, to: &mut TuiOut) {
let area = self.layout(to.area());
to.fill_bg(area, self.0);
to.place_at(area, &self.1);
}
}
impl<T: Content<TuiOut>> Draw<TuiOut> for Modify<T> {
fn draw (&self, to: &mut TuiOut) {
to.fill_mod(to.area(), self.0, self.1);
self.2.draw(to)
}
}
impl<T: Content<TuiOut>> Draw<TuiOut> for Styled<T> {
fn draw (&self, to: &mut TuiOut) {
to.place(&self.1);
// TODO write style over area
}
}
impl<S: BorderStyle> Draw<TuiOut> for Border<S> {
fn draw (&self, to: &mut TuiOut) {
let Border(enabled, style) = self;
if *enabled {
let area = to.area();
if area.w() > 0 && area.y() > 0 {
to.blit(&style.border_nw(), area.x(), area.y(), style.style());
to.blit(&style.border_ne(), area.x() + area.w() - 1, area.y(), style.style());
to.blit(&style.border_sw(), area.x(), area.y() + area.h() - 1, style.style());
to.blit(&style.border_se(), area.x() + area.w() - 1, area.y() + area.h() - 1, style.style());
for x in area.x()+1..area.x()+area.w()-1 {
to.blit(&style.border_n(), x, area.y(), style.style());
to.blit(&style.border_s(), x, area.y() + area.h() - 1, style.style());
}
for y in area.y()+1..area.y()+area.h()-1 {
to.blit(&style.border_w(), area.x(), y, style.style());
to.blit(&style.border_e(), area.x() + area.w() - 1, y, style.style());
}
}
}
}
}
impl<'a, T: AsRef<str>> Draw<TuiOut> for TrimString<T> {
fn draw (&self, to: &mut TuiOut) { Draw::draw(&self.as_ref(), to) }
}
impl<T: AsRef<str>> Draw<TuiOut> for TrimStringRef<'_, T> {
fn draw (&self, target: &mut TuiOut) {
let area = target.area();
let mut width: u16 = 1;
let mut chars = self.1.as_ref().chars();
while let Some(c) = chars.next() {
if width > self.0 || width > area.w() {
break
}
if let Some(cell) = target.buffer.cell_mut(Position {
x: area.x() + width - 1,
y: area.y()
}) {
cell.set_char(c);
}
width += c.width().unwrap_or(0) as u16;
}
}
}
}
/// TUI helper defs.
impl Tui {
pub const fn fg <T> (color: Color, w: T) -> Foreground<Color, T> { Foreground(color, w) }
pub const fn bg <T> (color: Color, w: T) -> Background<Color, T> { Background(color, w) }
pub const fn fg_bg <T> (fg: Color, bg: Color, w: T) -> Background<Color, Foreground<Color, T>> { Background(bg, Foreground(fg, w)) }
pub const fn modify <T> (enable: bool, modifier: Modifier, w: T) -> Modify<T> { Modify(enable, modifier, w) }
pub const fn bold <T> (enable: bool, w: T) -> Modify<T> { Self::modify(enable, Modifier::BOLD, w) }
pub const fn border <S, T> (enable: bool, style: S, w: T) -> Bordered<S, T> { Bordered(enable, style, w) }
pub const fn null () -> Color { Color::Reset }
pub const fn red () -> Color { Color::Rgb(255,0, 0) }
pub const fn orange () -> Color { Color::Rgb(255,128,0) }
pub const fn yellow () -> Color { Color::Rgb(255,255,0) }
pub const fn brown () -> Color { Color::Rgb(128,255,0) }
pub const fn green () -> Color { Color::Rgb(0,255,0) }
pub const fn electric () -> Color { Color::Rgb(0,255,128) }
pub const fn g (g: u8) -> Color { Color::Rgb(g, g, g) }
//fn bg0 () -> Color { Color::Rgb(20, 20, 20) }
//fn bg () -> Color { Color::Rgb(28, 35, 25) }
//fn border_bg () -> Color { Color::Rgb(40, 50, 30) }
//fn border_fg (f: bool) -> Color { if f { Self::bo1() } else { Self::bo2() } }
//fn title_fg (f: bool) -> Color { if f { Self::ti1() } else { Self::ti2() } }
//fn separator_fg (_: bool) -> Color { Color::Rgb(0, 0, 0) }
//fn mode_bg () -> Color { Color::Rgb(150, 160, 90) }
//fn mode_fg () -> Color { Color::Rgb(255, 255, 255) }
//fn status_bar_bg () -> Color { Color::Rgb(28, 35, 25) }
//fn bo1 () -> Color { Color::Rgb(100, 110, 40) }
//fn bo2 () -> Color { Color::Rgb(70, 80, 50) }
//fn ti1 () -> Color { Color::Rgb(150, 160, 90) }
//fn ti2 () -> Color { Color::Rgb(120, 130, 100) }
}
from!(BigBuffer: |size:(usize, usize)| Self::new(size.0, size.1));
from!(ItemTheme: |base: Color| Self::from_tui_color(base));
from!(ItemTheme: |base: ItemColor| Self::from_item_color(base));
from!(ItemColor: |okhsl: Okhsl<f32>| Self { okhsl, rgb: okhsl_to_rgb(okhsl) });
from!(ItemColor: |rgb: Color| Self { rgb, okhsl: rgb_to_okhsl(rgb) });
impl_debug!(BigBuffer |self, f| {
write!(f, "[BB {}x{} ({})]", self.width, self.height, self.content.len())
});

143
output/src/out_structs.rs → tengri/tengri_struct.rs
View file

@ -1,10 +1,88 @@
#[cfg(test)] use proptest_derive::Arbitrary; #[cfg(test)] use proptest_derive::Arbitrary;
use crate::*; use crate::*;
/// The `Tui` struct (the *engine*) implements the
/// `tengri_input::Input` and `tengri_output::Out` traits.
/// At launch, the `Tui` engine spawns two threads, the render thread and the input thread.
/// the application may further spawn other threads. All threads communicate using shared ownership:
/// `Arc<RwLock<T>>` and `Arc<AtomicT>`. Thus, at launch the engine and application instances are expected to be wrapped in `Arc<RwLock>`.
pub struct Tui {
pub exited: Arc<AtomicBool>,
pub backend: CrosstermBackend<Stdout>,
pub buffer: Buffer,
pub area: [u16;4],
pub perf: PerfModel,
}
#[derive(Debug, Clone)] pub struct TuiIn {
/// Input event
pub event: TuiEvent,
/// Exit flag
pub exited: Arc<AtomicBool>,
}
#[derive(Debug, Clone, Eq, PartialEq, PartialOrd)] pub struct TuiEvent(
pub Event
);
#[derive(Debug, Clone, Eq, PartialEq, PartialOrd)] pub struct TuiKey(
pub Option<KeyCode>,
pub KeyModifiers
);
#[derive(Default)] pub struct TuiOut {
pub buffer: Buffer,
pub area: XYWH<u16>,
}
/// TUI buffer sized by `usize` instead of `u16`.
#[derive(Default)] pub struct BigBuffer {
pub width: usize,
pub height: usize,
pub content: Vec<Cell>
}
/// A color in OKHSL and RGB representations.
#[derive(Debug, Default, Copy, Clone, PartialEq)] pub struct ItemColor {
pub okhsl: Okhsl<f32>,
pub rgb: Color,
}
/// A color in OKHSL and RGB with lighter and darker variants.
#[derive(Debug, Default, Copy, Clone, PartialEq)] pub struct ItemTheme {
pub base: ItemColor,
pub light: ItemColor,
pub lighter: ItemColor,
pub lightest: ItemColor,
pub dark: ItemColor,
pub darker: ItemColor,
pub darkest: ItemColor,
}
pub struct Modify<T>(pub bool, pub Modifier, pub T);
pub struct Styled<T>(pub Option<Style>, pub T);
/// Displays an owned [str]-like with fixed maximum width.
///
/// Width is computed using [unicode_width].
pub struct TrimString<T: AsRef<str>>(pub u16, pub T);
/// Displays a borrowed [str]-like with fixed maximum width
///
/// Width is computed using [unicode_width].
pub struct TrimStringRef<'a, T: AsRef<str>>(pub u16, pub &'a T);
/// Thunks can be natural error boundaries!
pub struct ErrorBoundary<O: Out, T: Draw<O>>(
pub std::marker::PhantomData<O>,
pub Perhaps<T>
);
/// A point (X, Y). /// A point (X, Y).
/// ///
/// ``` /// ```
/// let xy = tengri::output::XY(0u16, 0); /// let xy = tengri::XY(0u16, 0);
/// ``` /// ```
#[cfg_attr(test, derive(Arbitrary))] #[cfg_attr(test, derive(Arbitrary))]
#[derive(Copy, Clone, Debug, Default, PartialEq)] pub struct XY<C: Coord>( #[derive(Copy, Clone, Debug, Default, PartialEq)] pub struct XY<C: Coord>(
@ -14,7 +92,7 @@ use crate::*;
/// A size (Width, Height). /// A size (Width, Height).
/// ///
/// ``` /// ```
/// let wh = tengri::output::WH(0u16, 0); /// let wh = tengri::WH(0u16, 0);
/// ``` /// ```
#[cfg_attr(test, derive(Arbitrary))] #[cfg_attr(test, derive(Arbitrary))]
#[derive(Copy, Clone, Debug, Default, PartialEq)] pub struct WH<C: Coord>( #[derive(Copy, Clone, Debug, Default, PartialEq)] pub struct WH<C: Coord>(
@ -24,7 +102,8 @@ use crate::*;
/// Point with size. /// Point with size.
/// ///
/// ``` /// ```
/// let xywh = tengri::output::XYWH(0u16, 0, 0, 0); /// let xywh = tengri::XYWH(0u16, 0, 0, 0);
/// assert_eq!(XYWH(10u16, 10, 20, 20).center(), XY(20, 20));
/// ``` /// ```
/// ///
/// * [ ] TODO: anchor field (determines at which corner/side is X0 Y0) /// * [ ] TODO: anchor field (determines at which corner/side is X0 Y0)
@ -37,7 +116,7 @@ use crate::*;
/// A cardinal direction. /// A cardinal direction.
/// ///
/// ``` /// ```
/// let direction = tengri::output::Direction::Above; /// let direction = tengri::Direction::Above;
/// ``` /// ```
#[cfg_attr(test, derive(Arbitrary))] #[cfg_attr(test, derive(Arbitrary))]
#[derive(Copy, Clone, PartialEq, Debug)] pub enum Direction { #[derive(Copy, Clone, PartialEq, Debug)] pub enum Direction {
@ -47,7 +126,7 @@ use crate::*;
/// 9th of area to place. /// 9th of area to place.
/// ///
/// ``` /// ```
/// let alignment = tengri::output::Alignment::Center; /// let alignment = tengri::Alignment::Center;
/// ``` /// ```
#[cfg_attr(test, derive(Arbitrary))] #[cfg_attr(test, derive(Arbitrary))]
#[derive(Debug, Copy, Clone, Default)] pub enum Alignment { #[derive(Debug, Copy, Clone, Default)] pub enum Alignment {
@ -57,7 +136,7 @@ use crate::*;
/// A widget that tracks its rendered width and height. /// A widget that tracks its rendered width and height.
/// ///
/// ``` /// ```
/// let measure = tengri::output::Measure::<tengri::tui::TuiOut>::default(); /// let measure = tengri::Measure::<tengri::tui::TuiOut>::default();
/// ``` /// ```
#[derive(Default)] pub struct Measure<O: Out> { #[derive(Default)] pub struct Measure<O: Out> {
pub __: PhantomData<O>, pub __: PhantomData<O>,
@ -68,8 +147,8 @@ use crate::*;
/// Show an item only when a condition is true. /// Show an item only when a condition is true.
/// ///
/// ``` /// ```
/// fn test () -> impl tengri::output::Draw<tengri::tui::TuiOut> { /// fn test () -> impl tengri::Draw<tengri::tui::TuiOut> {
/// tengri::output::when(true, "Yes") /// tengri::when(true, "Yes")
/// } /// }
/// ``` /// ```
pub struct When<O, T>(pub bool, pub T, pub PhantomData<O>); pub struct When<O, T>(pub bool, pub T, pub PhantomData<O>);
@ -80,8 +159,8 @@ pub const fn when<O, T>(condition: bool, content: T) -> When<O, T> {
/// Show one item if a condition is true and another if the condition is false. /// Show one item if a condition is true and another if the condition is false.
/// ///
/// ``` /// ```
/// fn test () -> impl tengri::output::Draw<tengri::tui::TuiOut> { /// fn test () -> impl tengri::Draw<tengri::tui::TuiOut> {
/// tengri::output::either(true, "Yes", "No") /// tengri::either(true, "Yes", "No")
/// } /// }
/// ``` /// ```
pub struct Either<E, A, B>(pub bool, pub A, pub B, pub PhantomData<E>); pub struct Either<E, A, B>(pub bool, pub A, pub B, pub PhantomData<E>);
@ -92,56 +171,56 @@ pub const fn either<E, A, B>(condition: bool, content_a: A, content_b: B) -> Eit
/// Increment X and/or Y coordinate. /// Increment X and/or Y coordinate.
/// ///
/// ``` /// ```
/// let pushed = tengri::output::Push::XY(2, 2, "Hello"); /// let pushed = tengri::Push::XY(2, 2, "Hello");
/// ``` /// ```
pub enum Push<U, A> { X(U, A), Y(U, A), XY(U, U, A), } pub enum Push<U, A> { X(U, A), Y(U, A), XY(U, U, A), }
/// Decrement X and/or Y coordinate. /// Decrement X and/or Y coordinate.
/// ///
/// ``` /// ```
/// let pulled = tengri::output::Pull::XY(2, 2, "Hello"); /// let pulled = tengri::Pull::XY(2, 2, "Hello");
/// ``` /// ```
pub enum Pull<U, A> { X(U, A), Y(U, A), XY(U, U, A), } pub enum Pull<U, A> { X(U, A), Y(U, A), XY(U, U, A), }
/// Set the content to fill the container. /// Set the content to fill the container.
/// ///
/// ``` /// ```
/// let filled = tengri::output::Fill::XY("Hello"); /// let filled = tengri::Fill::XY("Hello");
/// ``` /// ```
pub enum Fill<A> { X(A), Y(A), XY(A) } pub enum Fill<A> { X(A), Y(A), XY(A) }
/// Set fixed size for content. /// Set fixed size for content.
/// ///
/// ``` /// ```
/// let fixed = tengri::output::Fixed::XY(3, 5, "Hello"); // 3x5 /// let fixed = tengri::Fixed::XY(3, 5, "Hello"); // 3x5
/// ``` /// ```
pub enum Fixed<U, A> { X(U, A), Y(U, A), XY(U, U, A), } pub enum Fixed<U, A> { X(U, A), Y(U, A), XY(U, U, A), }
/// Set the maximum width and/or height of the content. /// Set the maximum width and/or height of the content.
/// ///
/// ``` /// ```
/// let maximum = tengri::output::Min::XY(3, 5, "Hello"); // 3x1 /// let maximum = tengri::Min::XY(3, 5, "Hello"); // 3x1
/// ``` /// ```
pub enum Max<U, A> { X(U, A), Y(U, A), XY(U, U, A), } pub enum Max<U, A> { X(U, A), Y(U, A), XY(U, U, A), }
/// Set the minimum width and/or height of the content. /// Set the minimum width and/or height of the content.
/// ///
/// ``` /// ```
/// let minimam = tengri::output::Min::XY(3, 5, "Hello"); // 5x5 /// let minimam = tengri::Min::XY(3, 5, "Hello"); // 5x5
/// ``` /// ```
pub enum Min<U, A> { X(U, A), Y(U, A), XY(U, U, A), } pub enum Min<U, A> { X(U, A), Y(U, A), XY(U, U, A), }
/// Decrease the width and/or height of the content. /// Decrease the width and/or height of the content.
/// ///
/// ``` /// ```
/// let shrunk = tengri::output::Shrink::XY(2, 0, "Hello"); // 1x1 /// let shrunk = tengri::Shrink::XY(2, 0, "Hello"); // 1x1
/// ``` /// ```
pub enum Shrink<U, A> { X(U, A), Y(U, A), XY(U, U, A), } pub enum Shrink<U, A> { X(U, A), Y(U, A), XY(U, U, A), }
/// Increaase the width and/or height of the content. /// Increaase the width and/or height of the content.
/// ///
/// ``` /// ```
/// let expanded = tengri::output::Expand::XY(5, 3, "HELLO"); // 15x3 /// let expanded = tengri::Expand::XY(5, 3, "HELLO"); // 15x3
/// ``` /// ```
pub enum Expand<U, A> { X(U, A), Y(U, A), XY(U, U, A), } pub enum Expand<U, A> { X(U, A), Y(U, A), XY(U, U, A), }
@ -184,7 +263,7 @@ pub enum Pad<U, A> { X(U, A), Y(U, A), XY(U, U, A), }
/// TODO DOCUMENTME /// TODO DOCUMENTME
/// ///
/// ``` /// ```
/// use tengri::output::{Bounded, XYWH}; /// use tengri::{Bounded, XYWH};
/// let area = XYWH(0, 0, 0, 0); /// let area = XYWH(0, 0, 0, 0);
/// let content = ""; /// let content = "";
/// let bounded: Bounded<tengri::tui::TuiOut, _> = Bounded(area, content); /// let bounded: Bounded<tengri::tui::TuiOut, _> = Bounded(area, content);
@ -194,7 +273,7 @@ pub struct Bounded<O: Out, D>(pub XYWH<O::Unit>, pub D);
/// Draws items from an iterator. /// Draws items from an iterator.
/// ///
/// ``` /// ```
/// // FIXME let map = tengri::output::Map(||[].iter(), |_|{}); /// // FIXME let map = tengri::Map(||[].iter(), |_|{});
/// ``` /// ```
pub struct Map<O, A, B, I, F, G> pub struct Map<O, A, B, I, F, G>
where where
@ -288,3 +367,27 @@ pub struct PerfModel {
// In microseconds. Max prescribed time for iteration (frame, chunk...). // In microseconds. Max prescribed time for iteration (frame, chunk...).
pub window: AtomicF64, pub window: AtomicF64,
} }
/// Repeat a string, e.g. for background
pub enum Repeat<'a> {
X(&'a str),
Y(&'a str),
XY(&'a str)
}
/// Scroll indicator
pub enum Scrollbar {
/// Horizontal scrollbar
X { offset: usize, length: usize, total: usize, },
/// Vertical scrollbar
Y { offset: usize, length: usize, total: usize, }
}
/// A cell that takes up 3 rows on its own,
/// but stacks, giving (N+1)*2 rows per N cells.
pub struct Phat<T> {
pub width: u16,
pub height: u16,
pub content: T,
pub colors: [Color;4],
}

343
tengri/tengri_trait.rs Normal file
View file

@ -0,0 +1,343 @@
use crate::*;
/// Source of [Input::Event]s: keyboard, mouse...
///
/// ```
///
/// use crate::*;
/// struct TestInput(bool);
/// enum TestEvent { Test1 }
/// impl Input for TestInput {
/// type Event = TestEvent;
/// type Handled = ();
/// fn event (&self) -> &Self::Event {
/// &TestEvent::Test1
/// }
/// fn is_done (&self) -> bool {
/// self.0
/// }
/// fn done (&self) {}
/// }
/// let _ = TestInput(true).event();
/// assert!(TestInput(true).is_done());
/// assert!(!TestInput(false).is_done());
/// Ok(())
/// ```
pub trait Input: Sized {
/// Type of input event
type Event;
/// Result of handling input
type Handled; // TODO: make this an Option<Box dyn Command<Self>> containing the undo
/// Currently handled event
fn event (&self) -> &Self::Event;
/// Whether component should exit
fn is_done (&self) -> bool;
/// Mark component as done
fn done (&self);
}
/// State mutation.
pub trait Command<S>: Send + Sync + Sized {
fn execute (&self, state: &mut S) -> Perhaps<Self>;
fn delegate <T> (&self, state: &mut S, wrap: impl Fn(Self)->T) -> Perhaps<T>
where Self: Sized
{
Ok(self.execute(state)?.map(wrap))
}
}
/// Drawing target.
///
/// ```
/// use tengri::output::*;
/// struct TestOut(XYWH<u16>);
/// impl Out for TestOut {
/// type Unit = u16;
/// fn area (&self) -> XYWH<u16> { self.0 }
/// fn area_mut (&mut self) -> &mut XYWH<u16> { &mut self.0 }
/// fn place_at <T: Draw<Self> + ?Sized> (&mut self, area: XYWH<u16>, _: &T) {
/// println!("place_at: {area:?}");
/// ()
/// }
/// }
/// impl Draw<TestOut> for String {
/// fn draw (&self, to: &mut TestOut) {
/// //to.area_mut().set_w(self.len() as u16);
/// }
/// }
/// ```
pub trait Out: Send + Sync + Sized {
/// Unit of length
type Unit: Coord;
/// Current output area
fn area (&self) -> XYWH<Self::Unit>;
/// Mutable pointer to area.
fn area_mut (&mut self) -> &mut XYWH<Self::Unit>;
/// Render drawable in area specified by `area`
fn place_at <'t, T: Draw<Self> + ?Sized> (&mut self, area: XYWH<Self::Unit>, content: &'t T);
/// Render drawable in area specified by `T::layout(self.area())`
#[inline] fn place <'t, T: Content<Self> + ?Sized> (&mut self, content: &'t T) {
self.place_at(content.layout(self.area()), content)
}
}
/// A numeric type that can be used as coordinate.
///
/// FIXME: Replace this ad-hoc trait with `num` crate.
pub trait Coord: Send + Sync + Copy
+ Add<Self, Output=Self>
+ Sub<Self, Output=Self>
+ Mul<Self, Output=Self>
+ Div<Self, Output=Self>
+ Ord + PartialEq + Eq
+ Debug + Display + Default
+ From<u16> + Into<u16>
+ Into<usize>
+ Into<f64>
{
fn plus (self, other: Self) -> Self;
fn minus (self, other: Self) -> Self {
if self >= other { self - other } else { 0.into() }
}
fn atomic (self) -> AtomicUsize {
AtomicUsize::new(self.into())
}
fn zero () -> Self {
0.into()
}
}
/// Drawable with dynamic dispatch.
pub trait Draw<O: Out> {
fn draw (&self, to: &mut O);
}
/// FIXME: This is a general implementation: should be called `Eval` and be part of [dizzle].
/// Matches [Language] expressions to renderings for a given [Output] target.
pub trait View<O, U> {
fn view_expr <'a> (&'a self, _output: &mut O, expr: &'a impl Expression) -> Usually<U> {
Err(format!("View::view_expr: no exprs defined: {expr:?}").into())
}
fn view_word <'a> (&'a self, _output: &mut O, word: &'a impl Symbol) -> Usually<U> {
Err(format!("View::view_word: no words defined: {word:?}").into())
}
fn view <'a> (&'a self, output: &mut O, dsl: &'a impl Language) -> Usually<U> {
match (dsl.expr(), dsl.word()) {
(Ok(Some(e)), _ ) => self.view_expr(output, &e),
(_, Ok(Some(w))) => self.view_word(output, &w),
(Err(e), _ ) => Err(format!("invalid view expr:\n{dsl:?}\n{e}").into()),
(_, Err(w) ) => Err(format!("invalid view word:\n{dsl:?}\n{w}").into()),
(Ok(None), Ok(None) ) => Err(format!("empty view:\n{dsl:?}").into()),
}
}
}
/// Outputs combinator.
pub trait Lay<O: Out>: Sized {}
/// Drawable area of display.
pub trait Layout<O: Out> {
fn layout_x (&self, to: XYWH<O::Unit>) -> O::Unit { to.x() }
fn layout_y (&self, to: XYWH<O::Unit>) -> O::Unit { to.y() }
fn layout_w_min (&self, _t: XYWH<O::Unit>) -> O::Unit { 0.into() }
fn layout_w_max (&self, to: XYWH<O::Unit>) -> O::Unit { to.w() }
fn layout_w (&self, to: XYWH<O::Unit>) -> O::Unit { to.w().max(self.layout_w_min(to)).min(self.layout_w_max(to)) }
fn layout_h_min (&self, _t: XYWH<O::Unit>) -> O::Unit { 0.into() }
fn layout_h_max (&self, to: XYWH<O::Unit>) -> O::Unit { to.h() }
fn layout_h (&self, to: XYWH<O::Unit>) -> O::Unit { to.h().max(self.layout_h_min(to)).min(self.layout_h_max(to)) }
fn layout (&self, to: XYWH<O::Unit>) -> XYWH<O::Unit> {
XYWH(self.layout_x(to), self.layout_y(to), self.layout_w(to), self.layout_h(to))
}
}
pub trait HasContent<O: Out> {
fn content (&self) -> impl Content<O>;
}
// TODO DOCUMENTME
pub trait Content<O: Out>: Draw<O> + Layout<O> {}
// Something that has an origin point (X, Y).
pub trait HasXY<N: Coord> {
fn x (&self) -> N;
fn y (&self) -> N;
fn xy (&self) -> XY<N> { XY(self.x(), self.y()) }
}
// Something that has a size (W, H).
pub trait HasWH<N: Coord> {
fn w (&self) -> N;
fn h (&self) -> N;
fn wh (&self) -> WH<N> { WH(self.w(), self.h()) }
}
// Something that has a 2D bounding box (X, Y, W, H).
//
// FIXME: The other way around?
pub trait HasXYWH<N: Coord>: HasXY<N> + HasWH<N> {
fn x2 (&self) -> N { self.x().plus(self.w()) }
fn y2 (&self) -> N { self.y().plus(self.h()) }
fn xywh (&self) -> XYWH<N> { XYWH(self.x(), self.y(), self.w(), self.h()) }
fn expect_min (&self, w: N, h: N) -> Usually<&Self> {
if self.w() < w || self.h() < h {
Err(format!("min {w}x{h}").into())
} else {
Ok(self)
}
}
}
// Something that has a [Measure] of its rendered size.
pub trait Measured<O: Out> {
fn measure (&self) -> &Measure<O>;
fn measure_width (&self) -> O::Unit { self.measure().w() }
fn measure_height (&self) -> O::Unit { self.measure().h() }
}
pub trait HasPerf {
fn perf (&self) -> &PerfModel;
}
pub trait TuiDraw = Draw<TuiOut>;
pub trait TuiLayout = Layout<TuiOut>;
pub trait TuiContent = Content<TuiOut>;
pub trait TuiHandle = Handle<TuiIn>;
pub trait TuiWidget = TuiDraw + TuiHandle;
pub trait HasColor { fn color (&self) -> ItemColor; }
pub trait BorderStyle: Content<TuiOut> + Copy {
fn enabled (&self) -> bool;
fn enclose (self, w: impl Content<TuiOut>) -> impl Content<TuiOut> {
Bsp::b(Fill::XY(Border(self.enabled(), self)), w)
}
fn enclose2 (self, w: impl Content<TuiOut>) -> impl Content<TuiOut> {
Bsp::b(Pad::XY(1, 1, Fill::XY(Border(self.enabled(), self))), w)
}
fn enclose_bg (self, w: impl Content<TuiOut>) -> impl Content<TuiOut> {
Tui::bg(self.style().unwrap().bg.unwrap_or(Color::Reset),
Bsp::b(Fill::XY(Border(self.enabled(), self)), w))
}
const NW: &'static str = "";
const N: &'static str = "";
const NE: &'static str = "";
const E: &'static str = "";
const SE: &'static str = "";
const S: &'static str = "";
const SW: &'static str = "";
const W: &'static str = "";
const N0: &'static str = "";
const S0: &'static str = "";
const W0: &'static str = "";
const E0: &'static str = "";
fn border_n (&self) -> &str { Self::N }
fn border_s (&self) -> &str { Self::S }
fn border_e (&self) -> &str { Self::E }
fn border_w (&self) -> &str { Self::W }
fn border_nw (&self) -> &str { Self::NW }
fn border_ne (&self) -> &str { Self::NE }
fn border_sw (&self) -> &str { Self::SW }
fn border_se (&self) -> &str { Self::SE }
#[inline] fn draw <'a> (
&self, to: &mut TuiOut
) -> Usually<()> {
if self.enabled() {
self.draw_horizontal(to, None)?;
self.draw_vertical(to, None)?;
self.draw_corners(to, None)?;
}
Ok(())
}
#[inline] fn draw_horizontal (
&self, to: &mut TuiOut, style: Option<Style>
) -> Usually<XYWH<u16>> {
let area = to.area();
let style = style.or_else(||self.style_horizontal());
let [x, x2, y, y2] = area.lrtb();
for x in x..x2.saturating_sub(1) {
to.blit(&Self::N, x, y, style);
to.blit(&Self::S, x, y2.saturating_sub(1), style)
}
Ok(area)
}
#[inline] fn draw_vertical (
&self, to: &mut TuiOut, style: Option<Style>
) -> Usually<XYWH<u16>> {
let area = to.area();
let style = style.or_else(||self.style_vertical());
let [x, x2, y, y2] = area.lrtb();
let h = y2 - y;
if h > 1 {
for y in y..y2.saturating_sub(1) {
to.blit(&Self::W, x, y, style);
to.blit(&Self::E, x2.saturating_sub(1), y, style);
}
} else if h > 0 {
to.blit(&Self::W0, x, y, style);
to.blit(&Self::E0, x2.saturating_sub(1), y, style);
}
Ok(area)
}
#[inline] fn draw_corners (
&self, to: &mut TuiOut, style: Option<Style>
) -> Usually<XYWH<u16>> {
let area = to.area();
let style = style.or_else(||self.style_corners());
let XYWH(x, y, width, height) = area;
if width > 1 && height > 1 {
to.blit(&Self::NW, x, y, style);
to.blit(&Self::NE, x + width - 1, y, style);
to.blit(&Self::SW, x, y + height - 1, style);
to.blit(&Self::SE, x + width - 1, y + height - 1, style);
}
Ok(area)
}
#[inline] fn style (&self) -> Option<Style> { None }
#[inline] fn style_horizontal (&self) -> Option<Style> { self.style() }
#[inline] fn style_vertical (&self) -> Option<Style> { self.style() }
#[inline] fn style_corners (&self) -> Option<Style> { self.style() }
}
/// Define a trait an implement it for various mutation-enabled wrapper types. */
#[macro_export] macro_rules! flex_trait_mut (
($Trait:ident $(<$($A:ident:$T:ident),+>)? {
$(fn $fn:ident (&mut $self:ident $(, $arg:ident:$ty:ty)*) -> $ret:ty $body:block)*
})=>{
pub trait $Trait $(<$($A: $T),+>)? {
$(fn $fn (&mut $self $(,$arg:$ty)*) -> $ret $body)*
}
impl<$($($A: $T,)+)? _T_: $Trait $(<$($A),+>)?> $Trait $(<$($A),+>)? for &mut _T_ {
$(fn $fn (&mut $self $(,$arg:$ty)*) -> $ret { (*$self).$fn($($arg),*) })*
}
impl<$($($A: $T,)+)? _T_: $Trait $(<$($A),+>)?> $Trait $(<$($A),+>)? for Option<_T_> {
$(fn $fn (&mut $self $(,$arg:$ty)*) -> $ret {
if let Some(this) = $self { this.$fn($($arg),*) } else { Ok(None) }
})*
}
impl<$($($A: $T,)+)? _T_: $Trait $(<$($A),+>)?> $Trait $(<$($A),+>)? for ::std::sync::Mutex<_T_> {
$(fn $fn (&mut $self $(,$arg:$ty)*) -> $ret { $self.get_mut().unwrap().$fn($($arg),*) })*
}
impl<$($($A: $T,)+)? _T_: $Trait $(<$($A),+>)?> $Trait $(<$($A),+>)? for ::std::sync::Arc<::std::sync::Mutex<_T_>> {
$(fn $fn (&mut $self $(,$arg:$ty)*) -> $ret { $self.lock().unwrap().$fn($($arg),*) })*
}
impl<$($($A: $T,)+)? _T_: $Trait $(<$($A),+>)?> $Trait $(<$($A),+>)? for ::std::sync::RwLock<_T_> {
$(fn $fn (&mut $self $(,$arg:$ty)*) -> $ret { $self.write().unwrap().$fn($($arg),*) })*
}
impl<$($($A: $T,)+)? _T_: $Trait $(<$($A),+>)?> $Trait $(<$($A),+>)? for ::std::sync::Arc<::std::sync::RwLock<_T_>> {
$(fn $fn (&mut $self $(,$arg:$ty)*) -> $ret { $self.write().unwrap().$fn($($arg),*) })*
}
};
);
flex_trait_mut!(Handle <E: Input> {
fn handle (&mut self, _input: &E) -> Perhaps<E::Handled> {
Ok(None)
}
});

0
tengri/tengri_type.rs Normal file
View file

9
tui/Cargo.toml
View file

@ -14,15 +14,6 @@ dizzle = { workspace = true }
tengri_input = { workspace = true } tengri_input = { workspace = true }
tengri_output = { workspace = true } tengri_output = { workspace = true }
atomic_float = { workspace = true }
better-panic = { workspace = true }
bumpalo = { workspace = true, optional = true }
crossterm = { workspace = true }
palette = { workspace = true }
quanta = { workspace = true }
rand = { workspace = true }
ratatui = { workspace = true }
unicode-width = { workspace = true }
[dev-dependencies] [dev-dependencies]
tengri = { workspace = true, features = [ "dsl" ] } tengri = { workspace = true, features = [ "dsl" ] }

434
tui/src/.scratch.rs
View file

@ -1,434 +0,0 @@
use crate::*;
#[derive(Clone, Copy, Debug, PartialEq)]
pub enum FocusState<T: Copy + Debug + PartialEq> {
Focused(T),
Entered(T),
}
impl<T: Copy + Debug + PartialEq> FocusState<T> {
pub fn inner (&self) -> T {
match self {
Self::Focused(inner) => *inner,
Self::Entered(inner) => *inner,
}
}
pub fn set_inner (&mut self, inner: T) {
*self = match self {
Self::Focused(_) => Self::Focused(inner),
Self::Entered(_) => Self::Entered(inner),
}
}
pub fn is_focused (&self) -> bool { matches!(self, Self::Focused(_)) }
pub fn is_entered (&self) -> bool { matches!(self, Self::Entered(_)) }
pub fn focus (&mut self) { *self = Self::Focused(self.inner()) }
pub fn enter (&mut self) { *self = Self::Entered(self.inner()) }
}
#[derive(Copy, Clone, PartialEq, Debug)]
pub enum FocusCommand<T: Send + Sync> {
Up,
Down,
Left,
Right,
Next,
Prev,
Enter,
Exit,
Set(T)
}
impl<F: HasFocus + HasEnter + FocusGrid + FocusOrder> Command<F> for FocusCommand<F::Item> {
fn execute (self, state: &mut F) -> Perhaps<FocusCommand<F::Item>> {
match self {
Self::Next => { state.focus_next(); },
Self::Prev => { state.focus_prev(); },
Self::Up => { state.focus_up(); },
Self::Down => { state.focus_down(); },
Self::Left => { state.focus_left(); },
Self::Right => { state.focus_right(); },
Self::Enter => { state.focus_enter(); },
Self::Exit => { state.focus_exit(); },
Self::Set(to) => { state.set_focused(to); },
}
Ok(None)
}
}
/// Trait for things that have focusable subparts.
pub trait HasFocus {
type Item: Copy + PartialEq + Debug + Send + Sync;
/// Get the currently focused item.
fn focused (&self) -> Self::Item;
/// Get the currently focused item.
fn set_focused (&mut self, to: Self::Item);
/// Loop forward until a specific item is focused.
fn focus_to (&mut self, to: Self::Item) {
self.set_focused(to);
self.focus_updated();
}
/// Run this on focus update
fn focus_updated (&mut self) {}
}
/// Trait for things that have enterable subparts.
pub trait HasEnter: HasFocus {
/// Get the currently focused item.
fn entered (&self) -> bool;
/// Get the currently focused item.
fn set_entered (&mut self, entered: bool);
/// Enter into the currently focused component
fn focus_enter (&mut self) {
self.set_entered(true);
self.focus_updated();
}
/// Exit the currently entered component
fn focus_exit (&mut self) {
self.set_entered(false);
self.focus_updated();
}
}
/// Trait for things that implement directional navigation between focusable elements.
pub trait FocusGrid: HasFocus {
fn focus_layout (&self) -> &[&[Self::Item]];
fn focus_cursor (&self) -> (usize, usize);
fn focus_cursor_mut (&mut self) -> &mut (usize, usize);
fn focus_current (&self) -> Self::Item {
let (x, y) = self.focus_cursor();
self.focus_layout()[y][x]
}
fn focus_update (&mut self) {
self.focus_to(self.focus_current());
self.focus_updated()
}
fn focus_up (&mut self) {
let original_focused = self.focused();
let (_, original_y) = self.focus_cursor();
loop {
let (x, y) = self.focus_cursor();
let next_y = if y == 0 {
self.focus_layout().len().saturating_sub(1)
} else {
y - 1
};
if next_y == original_y {
break
}
let next_x = if self.focus_layout()[y].len() == self.focus_layout()[next_y].len() {
x
} else {
((x as f32 / self.focus_layout()[original_y].len() as f32)
* self.focus_layout()[next_y].len() as f32) as usize
};
*self.focus_cursor_mut() = (next_x, next_y);
if self.focus_current() != original_focused {
break
}
}
self.focus_update();
}
fn focus_down (&mut self) {
let original_focused = self.focused();
let (_, original_y) = self.focus_cursor();
loop {
let (x, y) = self.focus_cursor();
let next_y = if y >= self.focus_layout().len().saturating_sub(1) {
0
} else {
y + 1
};
if next_y == original_y {
break
}
let next_x = if self.focus_layout()[y].len() == self.focus_layout()[next_y].len() {
x
} else {
((x as f32 / self.focus_layout()[original_y].len() as f32)
* self.focus_layout()[next_y].len() as f32) as usize
};
*self.focus_cursor_mut() = (next_x, next_y);
if self.focus_current() != original_focused {
break
}
}
self.focus_update();
}
fn focus_left (&mut self) {
let original_focused = self.focused();
let (original_x, y) = self.focus_cursor();
loop {
let x = self.focus_cursor().0;
let next_x = if x == 0 {
self.focus_layout()[y].len().saturating_sub(1)
} else {
x - 1
};
if next_x == original_x {
break
}
*self.focus_cursor_mut() = (next_x, y);
if self.focus_current() != original_focused {
break
}
}
self.focus_update();
}
fn focus_right (&mut self) {
let original_focused = self.focused();
let (original_x, y) = self.focus_cursor();
loop {
let x = self.focus_cursor().0;
let next_x = if x >= self.focus_layout()[y].len().saturating_sub(1) {
0
} else {
x + 1
};
if next_x == original_x {
break
}
self.focus_cursor_mut().0 = next_x;
if self.focus_current() != original_focused {
break
}
}
self.focus_update();
}
}
/// Trait for things that implement next/prev navigation between focusable elements.
pub trait FocusOrder {
/// Focus the next item.
fn focus_next (&mut self);
/// Focus the previous item.
fn focus_prev (&mut self);
}
/// Next/prev navigation for directional focusables works in the given way.
impl<T: FocusGrid + HasEnter> FocusOrder for T {
/// Focus the next item.
fn focus_next (&mut self) {
let current = self.focused();
let (x, y) = self.focus_cursor();
if x < self.focus_layout()[y].len().saturating_sub(1) {
self.focus_right();
} else {
self.focus_down();
self.focus_cursor_mut().0 = 0;
}
if self.focused() == current { // FIXME: prevent infinite loop
self.focus_next()
}
self.focus_exit();
self.focus_update();
}
/// Focus the previous item.
fn focus_prev (&mut self) {
let current = self.focused();
let (x, _) = self.focus_cursor();
if x > 0 {
self.focus_left();
} else {
self.focus_up();
let (_, y) = self.focus_cursor();
let next_x = self.focus_layout()[y].len().saturating_sub(1);
self.focus_cursor_mut().0 = next_x;
}
if self.focused() == current { // FIXME: prevent infinite loop
self.focus_prev()
}
self.focus_exit();
self.focus_update();
}
}
pub trait FocusWrap<T> {
fn wrap <W: Content<TuiOut>> (self, focus: T, content: &'_ W) -> impl Draw<TuiOut> + '_;
}
pub fn to_focus_command <T: Send + Sync> (input: &TuiIn) -> Option<FocusCommand<T>> {
Some(match input.event() {
kpat!(Tab) => FocusCommand::Next,
kpat!(Shift-Tab) => FocusCommand::Prev,
kpat!(BackTab) => FocusCommand::Prev,
kpat!(Shift-BackTab) => FocusCommand::Prev,
kpat!(Up) => FocusCommand::Up,
kpat!(Down) => FocusCommand::Down,
kpat!(Left) => FocusCommand::Left,
kpat!(Right) => FocusCommand::Right,
kpat!(Enter) => FocusCommand::Enter,
kpat!(Esc) => FocusCommand::Exit,
_ => return None
})
}
#[macro_export] macro_rules! impl_focus {
($Struct:ident $Focus:ident $Grid:expr $(=> [$self:ident : $update_focus:expr])?) => {
impl HasFocus for $Struct {
type Item = $Focus;
/// Get the currently focused item.
fn focused (&self) -> Self::Item {
self.focus.inner()
}
/// Get the currently focused item.
fn set_focused (&mut self, to: Self::Item) {
self.focus.set_inner(to)
}
$(fn focus_updated (&mut $self) { $update_focus })?
}
impl HasEnter for $Struct {
/// Get the currently focused item.
fn entered (&self) -> bool {
self.focus.is_entered()
}
/// Get the currently focused item.
fn set_entered (&mut self, entered: bool) {
if entered {
self.focus.to_entered()
} else {
self.focus.to_focused()
}
}
}
impl FocusGrid for $Struct {
fn focus_cursor (&self) -> (usize, usize) {
self.cursor
}
fn focus_cursor_mut (&mut self) -> &mut (usize, usize) {
&mut self.cursor
}
fn focus_layout (&self) -> &[&[$Focus]] {
use $Focus::*;
&$Grid
}
}
}
}
use crate::*;
pub struct MenuBar<E: Engine, S, C: Command<S>> {
pub menus: Vec<Menu<E, S, C>>,
pub index: usize,
}
impl<E: Engine, S, C: Command<S>> MenuBar<E, S, C> {
pub fn new () -> Self { Self { menus: vec![], index: 0 } }
pub fn add (mut self, menu: Menu<E, S, C>) -> Self {
self.menus.push(menu);
self
}
}
pub struct Menu<E: Engine, S, C: Command<S>> {
pub title: Arc<str>,
pub items: Vec<MenuItem<E, S, C>>,
pub index: Option<usize>,
}
impl<E: Engine, S, C: Command<S>> Menu<E, S, C> {
pub fn new (title: impl AsRef<str>) -> Self {
Self {
title: title.as_ref().to_string(),
items: vec![],
index: None,
}
}
pub fn add (mut self, item: MenuItem<E, S, C>) -> Self {
self.items.push(item);
self
}
pub fn sep (mut self) -> Self {
self.items.push(MenuItem::sep());
self
}
pub fn cmd (mut self, hotkey: &'static str, text: &'static str, command: C) -> Self {
self.items.push(MenuItem::cmd(hotkey, text, command));
self
}
pub fn off (mut self, hotkey: &'static str, text: &'static str) -> Self {
self.items.push(MenuItem::off(hotkey, text));
self
}
}
pub enum MenuItem<E: Engine, S, C: Command<S>> {
/// Unused.
__(PhantomData<E>, PhantomData<S>),
/// A separator. Skip it.
Separator,
/// A menu item with command, description and hotkey.
Command(&'static str, &'static str, C),
/// A menu item that can't be activated but has description and hotkey
Disabled(&'static str, &'static str)
}
impl<E: Engine, S, C: Command<S>> MenuItem<E, S, C> {
pub fn sep () -> Self {
Self::Separator
}
pub fn cmd (hotkey: &'static str, text: &'static str, command: C) -> Self {
Self::Command(hotkey, text, command)
}
pub fn off (hotkey: &'static str, text: &'static str) -> Self {
Self::Disabled(hotkey, text)
}
}
//impl<T: Draw<TuiOut>> Content<TuiOut> for Result<T, Box<dyn std::error::Error>> {
//fn content (&self) -> impl Draw<TuiOut> + '_ {
//Bsp::a(self.as_ref().ok(), self.as_ref().err().map(
//|e|Tui::fg_bg(Color::Rgb(255,255,255), Color::Rgb(32,32,32), e.to_string())
//))
//}
//}
//impl<T: Draw<TuiOut>> Draw<TuiOut> for Result<T, Box<dyn std::error::Error>> {
//fn layout (&self, to: [u16;4]) -> [u16;4] {
//match self {
//Ok(content) => content.layout(to),
//Err(e) => [0, 0, to.w(), to.h()]
//}
//}
//fn draw (&self, to: &mut TuiOut) {
//match self {
//Ok(content) => content.draw(to),
//Err(e) => to.blit(&e.to_string(), 0, 0, Some(Style::default()
//.bg(Color::Rgb(32,32,32))
//.fg(Color::Rgb(255,255,255))))
//}
//}
//}
//let token = token.as_ref();
//if token.len() < 2 {
//Self { valid: false, key: None, mods: KeyModifiers::NONE }
//} else if token.chars().next() != Some('@') {
//Self { valid: false, key: None, mods: KeyModifiers::NONE }
//} else {
//Self { valid: true, key: None, mods: KeyModifiers::NONE }.next(&token[1..])
//}
//}
//pub fn build (self) -> Option<Event> {
//if self.valid && self.key.is_some() {
//Some(Event::Key(KeyEvent::new(self.key.unwrap(), self.mods)))
//} else {
//None
//}
//}
//fn next (mut self, token: &str) -> Self {
//let mut tokens = token.split('-').peekable();
//while let Some(token) = tokens.next() {
//if tokens.peek().is_some() {
//match token {
//"ctrl" | "Ctrl" | "c" | "C" => self.mods |= KeyModifiers::CONTROL,
//"alt" | "Alt" | "m" | "M" => self.mods |= KeyModifiers::ALT,
//"shift" | "Shift" | "s" | "S" => {
//self.mods |= KeyModifiers::SHIFT;
//// + TODO normalize character case, BackTab, etc.
//},
//_ => panic!("unknown modifier {token}"),
//}
//} else {
//self.key = if token.len() == 1 {
//Some(KeyCode::Char(token.chars().next().unwrap()))
//} else {
//Some(Self::named_key(token).unwrap_or_else(||panic!("unknown character {token}")))
//}
//}
//}
//self
//}

490
tui/src/lib.rs
View file

@ -1,490 +0,0 @@
#![feature(type_changing_struct_update, trait_alias)]
pub extern crate dizzle;
pub extern crate tengri_input;
pub extern crate tengri_output;
pub extern crate ratatui;
pub extern crate crossterm;
pub extern crate palette;
pub extern crate better_panic;
pub use ::tengri_output::PerfModel;
use std::{time::Duration, thread::{spawn, JoinHandle}, io::Write};
use unicode_width::*;
pub(crate) use ::{
dizzle::*, tengri_input::*, tengri_output::*,
std::{io::{stdout, Stdout}, sync::{Arc, RwLock, atomic::{AtomicBool, Ordering::*}}},
better_panic::{Settings, Verbosity},
palette::{*, convert::*, okhsl::*},
ratatui::{
prelude::{Color, Style, Buffer, Position},
style::{Stylize, Modifier, Color::*},
backend::{Backend, CrosstermBackend, ClearType},
layout::{Size, Rect},
buffer::Cell
},
crossterm::{
ExecutableCommand,
terminal::{EnterAlternateScreen, LeaveAlternateScreen, enable_raw_mode, disable_raw_mode},
event::{poll, read, Event, KeyEvent, KeyCode, KeyModifiers, KeyEventKind, KeyEventState},
}
};
#[macro_export] macro_rules! tui_main {
($expr:expr) => {
fn main () -> Usually<()> {
tengri_tui::Tui::run(true, $expr)?;
Ok(())
}
};
}
#[macro_export] macro_rules! has_color {
(|$self:ident:$Struct:ident$(<$($L:lifetime),*$($T:ident$(:$U:path)?),*>)?|$cb:expr) => {
impl $(<$($L),*$($T $(: $U)?),*>)? HasColor for $Struct $(<$($L),*$($T),*>)? {
fn color (&$self) -> ItemColor { $cb }
}
}
}
macro_rules! border {
($($T:ident {
$nw:literal $n:literal $ne:literal $w:literal $e:literal $sw:literal $s:literal $se:literal
$($x:tt)*
}),+) => {$(
impl BorderStyle for $T {
const NW: &'static str = $nw;
const N: &'static str = $n;
const NE: &'static str = $ne;
const W: &'static str = $w;
const E: &'static str = $e;
const SW: &'static str = $sw;
const S: &'static str = $s;
const SE: &'static str = $se;
$($x)*
fn enabled (&self) -> bool { self.0 }
}
#[derive(Copy, Clone)] pub struct $T(pub bool, pub Style);
impl Layout<TuiOut> for $T {}
impl Draw<TuiOut> for $T {
fn draw (&self, to: &mut TuiOut) {
if self.enabled() { let _ = BorderStyle::draw(self, to); }
}
}
)+}
}
mod tui_structs; pub use self::tui_structs::*;
mod tui_traits; pub use self::tui_traits::*;
mod tui_impls;
#[cfg(test)] mod tui_test;
/// Run an app in the main loop.
pub fn tui_run <T: Send + Sync + Draw<TuiOut> + Handle<TuiIn> + 'static> (
join: bool,
state: &Arc<RwLock<T>>
) -> Usually<Arc<RwLock<Tui>>> {
let backend = CrosstermBackend::new(stdout());
let Size { width, height } = backend.size()?;
let tui = Arc::new(RwLock::new(Tui {
exited: Arc::new(AtomicBool::new(false)),
buffer: Buffer::empty(Rect { x: 0, y: 0, width, height }),
area: [0, 0, width, height],
perf: Default::default(),
backend,
}));
let _input_thread = tui_input(tui.clone(), state, Duration::from_millis(100));
tui.write().unwrap().setup()?;
let render_thread = tui_output(tui.clone(), state, Duration::from_millis(10))?;
if join {
match render_thread.join() {
Ok(result) => {
tui.write().unwrap().teardown()?;
println!("\n\rRan successfully: {result:?}\n\r");
},
Err(error) => {
tui.write().unwrap().teardown()?;
panic!("\n\rDraw thread failed: error={error:?}.\n\r")
},
}
}
Ok(tui)
}
pub fn tui_setup <W: Write> (
backend: &mut CrosstermBackend<W>
) -> Usually<()> {
let better_panic_handler = Settings::auto().verbosity(Verbosity::Full).create_panic_handler();
std::panic::set_hook(Box::new(move |info: &std::panic::PanicHookInfo|{
stdout().execute(LeaveAlternateScreen).unwrap();
CrosstermBackend::new(stdout()).show_cursor().unwrap();
disable_raw_mode().unwrap();
better_panic_handler(info);
}));
stdout().execute(EnterAlternateScreen)?;
backend.hide_cursor()?;
enable_raw_mode().map_err(Into::into)
}
pub fn tui_teardown <W: Write> (backend: &mut CrosstermBackend<W>) -> Usually<()> {
stdout().execute(LeaveAlternateScreen)?;
backend.show_cursor()?;
disable_raw_mode().map_err(Into::into)
}
pub fn tui_resized <W: Write> (
backend: &mut CrosstermBackend<W>,
buffer: &mut Buffer,
size: ratatui::prelude::Rect
) {
if buffer.area != size {
backend.clear_region(ClearType::All).unwrap();
buffer.resize(size);
buffer.reset();
}
}
pub fn tui_redrawn <'b, W: Write> (
backend: &mut CrosstermBackend<W>,
mut prev_buffer: &'b mut Buffer,
mut next_buffer: &'b mut Buffer
) {
let updates = prev_buffer.diff(&next_buffer);
backend.draw(updates.into_iter()).expect("failed to render");
Backend::flush(backend).expect("failed to flush output new_buffer");
std::mem::swap(&mut prev_buffer, &mut next_buffer);
next_buffer.reset();
}
pub fn tui_update (
buf: &mut Buffer, area: XYWH<u16>, callback: &impl Fn(&mut Cell, u16, u16)
) {
for row in 0..area.h() {
let y = area.y() + row;
for col in 0..area.w() {
let x = area.x() + col;
if x < buf.area.width && y < buf.area.height {
if let Some(cell) = buf.cell_mut(ratatui::prelude::Position { x, y }) {
callback(cell, col, row);
}
}
}
}
}
/// Spawn the output thread.
pub fn tui_output <T: Draw<TuiOut> + Send + Sync + 'static> (
engine: Arc<RwLock<Tui>>, state: &Arc<RwLock<T>>, timer: Duration
) -> Result<JoinHandle<()>, std::io::Error> {
let exited = engine.read().unwrap().exited.clone();
let engine = engine.clone();
let state = state.clone();
let Size { width, height } = engine.read().unwrap().backend.size().expect("get size failed");
let mut buffer = Buffer::empty(Rect { x: 0, y: 0, width, height });
std::thread::Builder::new()
.name("tui output thread".into())
.spawn(move || loop {
if exited.fetch_and(true, Relaxed) {
break
}
let t0 = engine.read().unwrap().perf.get_t0();
let Size { width, height } = engine.read().unwrap().backend.size()
.expect("get size failed");
if let Ok(state) = state.try_read() {
let size = Rect { x: 0, y: 0, width, height };
if buffer.area != size {
engine.write().unwrap().backend.clear_region(ClearType::All).expect("clear failed");
buffer.resize(size);
buffer.reset();
}
let mut output = TuiOut { buffer, area: XYWH(0, 0, width, height) };
state.draw(&mut output);
buffer = engine.write().unwrap().flip(output.buffer, size);
}
let t1 = (*engine.read().unwrap()).perf.get_t1(t0).unwrap();
buffer.set_string(0, 0, &format!("{:>3}.{:>3}ms", t1.as_millis(), t1.as_micros() % 1000), Style::default());
std::thread::sleep(timer);
})
}
/// Spawn the input thread.
pub fn tui_input <T: Handle<TuiIn> + Send + Sync + 'static> (
engine: Arc<RwLock<Tui>>, state: &Arc<RwLock<T>>, timer: Duration
) -> JoinHandle<()> {
let exited = engine.read().unwrap().exited.clone();
let state = state.clone();
spawn(move || loop {
if exited.fetch_and(true, Relaxed) {
break
}
if poll(timer).is_ok() {
let event = read().unwrap();
match event {
Event::Key(KeyEvent {
code: KeyCode::Char('c'),
modifiers: KeyModifiers::CONTROL,
kind: KeyEventKind::Press,
state: KeyEventState::NONE
}) => {
exited.store(true, Relaxed);
},
_ => {
let exited = exited.clone();
let event = TuiEvent::from_crossterm(event);
if let Err(e) = state.write().unwrap().handle(&TuiIn { exited, event }) {
panic!("{e}")
}
}
}
}
})
}
#[cfg(feature = "dsl")] pub fn evaluate_output_expression_tui <'a, S> (
state: &S, output: &mut TuiOut, expr: impl Expression + 'a
) -> Usually<bool> where
S: View<TuiOut, ()>
+ for<'b>Namespace<'b, bool>
+ for<'b>Namespace<'b, u16>
+ for<'b>Namespace<'b, Color>
{
// See `tengri_output::evaluate_output_expression`
let head = expr.head()?;
let mut frags = head.src()?.unwrap_or_default().split("/");
let args = expr.tail();
let arg0 = args.head();
let tail0 = args.tail();
let arg1 = tail0.head();
let tail1 = tail0.tail();
let _arg2 = tail1.head();
match frags.next() {
Some("text") => if let Some(src) = args?.src()? { output.place(&src) },
Some("fg") => {
let arg0 = arg0?.expect("fg: expected arg 0 (color)");
output.place(&Tui::fg(
Namespace::<Color>::namespace(state, arg0)?.unwrap_or_else(||panic!("fg: {arg0:?}: not a color")),
Thunk::new(move|output: &mut TuiOut|state.view(output, &arg1).unwrap()),
))
},
Some("bg") => {
let arg0 = arg0?.expect("bg: expected arg 0 (color)");
output.place(&Tui::bg(
Namespace::<Color>::namespace(state, arg0)?.unwrap_or_else(||panic!("bg: {arg0:?}: not a color")),
Thunk::new(move|output: &mut TuiOut|state.view(output, &arg1).unwrap()),
))
},
_ => return Ok(false)
};
Ok(true)
}
pub fn named_key (token: &str) -> Option<KeyCode> {
use KeyCode::*;
Some(match token {
"up" => Up,
"down" => Down,
"left" => Left,
"right" => Right,
"esc" | "escape" => Esc,
"enter" | "return" => Enter,
"delete" | "del" => Delete,
"backspace" => Backspace,
"tab" => Tab,
"space" => Char(' '),
"comma" => Char(','),
"period" => Char('.'),
"plus" => Char('+'),
"minus" | "dash" => Char('-'),
"equal" | "equals" => Char('='),
"underscore" => Char('_'),
"backtick" => Char('`'),
"lt" => Char('<'),
"gt" => Char('>'),
"cbopen" | "openbrace" => Char('{'),
"cbclose" | "closebrace" => Char('}'),
"bropen" | "openbracket" => Char('['),
"brclose" | "closebracket" => Char(']'),
"pgup" | "pageup" => PageUp,
"pgdn" | "pagedown" => PageDown,
"f1" => F(1),
"f2" => F(2),
"f3" => F(3),
"f4" => F(4),
"f5" => F(5),
"f6" => F(6),
"f7" => F(7),
"f8" => F(8),
"f9" => F(9),
"f10" => F(10),
"f11" => F(11),
"f12" => F(12),
_ => return None,
})
}
pub fn button_2 <'a> (key: impl Content<TuiOut>, label: impl Content<TuiOut>, editing: bool) -> impl Content<TuiOut> {
Tui::bold(true, Bsp::e(
Tui::fg_bg(Tui::orange(), Tui::g(0), Bsp::e(Tui::fg(Tui::g(0), &"▐"), Bsp::e(key, Tui::fg(Tui::g(96), &"▐")))),
When::new(!editing, Tui::fg_bg(Tui::g(255), Tui::g(96), label))))
}
pub fn button_3 <'a> (
key: impl Content<TuiOut>, label: impl Content<TuiOut>, value: impl Content<TuiOut>, editing: bool,
) -> impl Content<TuiOut> {
Tui::bold(true, Bsp::e(
Tui::fg_bg(Tui::orange(), Tui::g(0),
Bsp::e(Tui::fg(Tui::g(0), &"▐"), Bsp::e(key, Tui::fg(if editing { Tui::g(128) } else { Tui::g(96) }, "▐")))),
Bsp::e(
When::new(!editing, Bsp::e(Tui::fg_bg(Tui::g(255), Tui::g(96), label), Tui::fg_bg(Tui::g(128), Tui::g(96), &"▐"),)),
Bsp::e(Tui::fg_bg(Tui::g(224), Tui::g(128), value), Tui::fg_bg(Tui::g(128), Reset, &"▌"), ))))
}
border! {
Square {
"┌" "─" "┐"
"│" "│"
"└" "─" "┘" fn style (&self) -> Option<Style> { Some(self.1) }
},
SquareBold {
"┏" "━" "┓"
"┃" "┃"
"┗" "━" "┛" fn style (&self) -> Option<Style> { Some(self.1) }
},
TabLike {
"╭" "─" "╮"
"│" "│"
"│" " " "│" fn style (&self) -> Option<Style> { Some(self.1) }
},
Lozenge {
"╭" "─" "╮"
"│" "│"
"╰" "─" "╯" fn style (&self) -> Option<Style> { Some(self.1) }
},
Brace {
"╭" "" "╮"
"│" "│"
"╰" "" "╯" fn style (&self) -> Option<Style> { Some(self.1) }
},
LozengeDotted {
"╭" "┅" "╮"
"┇" "┇"
"╰" "┅" "╯" fn style (&self) -> Option<Style> { Some(self.1) }
},
Quarter {
"▎" "▔" "🮇"
"▎" "🮇"
"▎" "▁" "🮇" fn style (&self) -> Option<Style> { Some(self.1) }
},
QuarterV {
"▎" "" "🮇"
"▎" "🮇"
"▎" "" "🮇" fn style (&self) -> Option<Style> { Some(self.1) }
},
Chamfer {
"🭂" "▔" "🭍"
"▎" "🮇"
"🭓" "▁" "🭞" fn style (&self) -> Option<Style> { Some(self.1) }
},
Corners {
"🬆" "" "🬊" // 🬴 🬸
"" ""
"🬱" "" "🬵" fn style (&self) -> Option<Style> { Some(self.1) }
},
CornersTall {
"🭽" "" "🭾"
"" ""
"🭼" "" "🭿" fn style (&self) -> Option<Style> { Some(self.1) }
},
Outer {
"🭽" "▔" "🭾"
"▏" "▕"
"🭼" "▁" "🭿"
const W0: &'static str = "[";
const E0: &'static str = "]";
const N0: &'static str = "⎴";
const S0: &'static str = "⎵";
fn style (&self) -> Option<Style> { Some(self.1) }
},
Thick {
"▄" "▄" "▄"
"█" "█"
"▀" "▀" "▀"
fn style (&self) -> Option<Style> { Some(self.1) }
},
Rugged {
"▄" "▂" "▄"
"▐" "▌"
"▀" "🮂" "▀"
fn style (&self) -> Option<Style> { Some(self.1) }
},
Skinny {
"▗" "▄" "▖"
"▐" "▌"
"▝" "▀" "▘"
fn style (&self) -> Option<Style> { Some(self.1) }
},
Brackets {
"⎡" "" "⎤"
"" ""
"⎣" "" "⎦"
const W0: &'static str = "[";
const E0: &'static str = "]";
const N0: &'static str = "⎴";
const S0: &'static str = "⎵";
fn style (&self) -> Option<Style> { Some(self.1) }
},
Reticle {
"⎡" "" "⎤"
"" ""
"⎣" "" "⎦"
const W0: &'static str = "╟";
const E0: &'static str = "╢";
const N0: &'static str = "┯";
const S0: &'static str = "┷";
fn style (&self) -> Option<Style> { Some(self.1) }
}
}
pub fn okhsl_to_rgb (color: Okhsl<f32>) -> Color {
let Srgb { red, green, blue, .. }: Srgb<f32> = Srgb::from_color_unclamped(color);
Color::Rgb((red * 255.0) as u8, (green * 255.0) as u8, (blue * 255.0) as u8,)
}
pub fn rgb_to_okhsl (color: Color) -> Okhsl<f32> {
if let Color::Rgb(r, g, b) = color {
Okhsl::from_color(Srgb::new(r as f32 / 255.0, g as f32 / 255.0, b as f32 / 255.0))
} else {
unreachable!("only Color::Rgb is supported")
}
}
/// Trim string with [unicode_width].
pub fn trim_string (max_width: usize, input: impl AsRef<str>) -> String {
let input = input.as_ref();
let mut output = Vec::with_capacity(input.len());
let mut width: usize = 1;
let mut chars = input.chars();
while let Some(c) = chars.next() {
if width > max_width {
break
}
output.push(c);
width += c.width().unwrap_or(0);
}
return output.into_iter().collect()
}
pub(crate) fn width_chars_max (max: u16, text: impl AsRef<str>) -> u16 {
let mut width: u16 = 0;
let mut chars = text.as_ref().chars();
while let Some(c) = chars.next() {
width += c.width().unwrap_or(0) as u16;
if width > max {
break
}
}
return width
}

12
tui/src/tui_content.rs
View file

@ -1,12 +0,0 @@
#[allow(unused)] use crate::*;
mod tui_border; pub use self::tui_border::*;
mod tui_button; pub use self::tui_button::*;
mod tui_color; pub use self::tui_color::*;
mod tui_error; pub use self::tui_error::*;
mod tui_phat; pub use self::tui_phat::*;
mod tui_repeat; pub use self::tui_repeat::*;
mod tui_scroll; pub use self::tui_scroll::*;
mod tui_string; pub use self::tui_string::*;
mod tui_number; //pub use self::tui_number::*;
mod tui_tryptich; //pub use self::tui_tryptich::*;

637
tui/src/tui_impls.rs
View file

@ -1,637 +0,0 @@
use crate::*;
use unicode_width::{UnicodeWidthStr, UnicodeWidthChar};
use rand::{thread_rng, distributions::uniform::UniformSampler};
impl Tui {
/// Create and launch a terminal user interface.
pub fn run <T> (join: bool, state: T) -> Usually<Arc<RwLock<Self>>> where
T: Handle<TuiIn> + Draw<TuiOut> + Send + Sync + 'static
{
tui_run(join, &Arc::new(RwLock::new(state)))
}
/// True if done
pub fn exited (&self) -> bool { self.exited.fetch_and(true, Relaxed) }
/// Prepare before run
pub fn setup (&mut self) -> Usually<()> { tui_setup(&mut self.backend) }
/// Clean up after run
pub fn teardown (&mut self) -> Usually<()> { tui_teardown(&mut self.backend) }
/// Apply changes to the display buffer.
pub fn flip (&mut self, mut buffer: Buffer, size: ratatui::prelude::Rect) -> Buffer {
tui_resized(&mut self.backend, &mut self.buffer, size);
tui_redrawn(&mut self.backend, &mut self.buffer, &mut buffer);
buffer
}
}
impl Input for TuiIn {
type Event = TuiEvent;
type Handled = bool;
fn event (&self) -> &TuiEvent { &self.event }
fn done (&self) { self.exited.store(true, Relaxed); }
fn is_done (&self) -> bool { self.exited.fetch_and(true, Relaxed) }
}
impl Ord for TuiEvent {
fn cmp (&self, other: &Self) -> std::cmp::Ordering {
self.partial_cmp(other)
.unwrap_or_else(||format!("{:?}", self).cmp(&format!("{other:?}"))) // FIXME perf
}
}
impl TuiEvent {
pub fn from_crossterm (event: Event) -> Self { Self(event) }
#[cfg(feature = "dsl")] pub fn from_dsl (dsl: impl Language) -> Perhaps<Self> {
Ok(TuiKey::from_dsl(dsl)?.to_crossterm().map(Self))
}
}
impl TuiKey {
const SPLIT: char = '/';
#[cfg(feature = "dsl")] pub fn from_dsl (dsl: impl Language) -> Usually<Self> {
if let Some(word) = dsl.word()? {
let word = word.trim();
Ok(if word == ":char" {
Self(None, KeyModifiers::NONE)
} else if word.chars().nth(0) == Some('@') {
let mut key = None;
let mut modifiers = KeyModifiers::NONE;
let mut tokens = word[1..].split(Self::SPLIT).peekable();
while let Some(token) = tokens.next() {
if tokens.peek().is_some() {
match token {
"ctrl" | "Ctrl" | "c" | "C" => modifiers |= KeyModifiers::CONTROL,
"alt" | "Alt" | "m" | "M" => modifiers |= KeyModifiers::ALT,
"shift" | "Shift" | "s" | "S" => {
modifiers |= KeyModifiers::SHIFT;
// + TODO normalize character case, BackTab, etc.
},
_ => panic!("unknown modifier {token}"),
}
} else {
key = if token.len() == 1 {
Some(KeyCode::Char(token.chars().next().unwrap()))
} else {
Some(named_key(token).unwrap_or_else(||panic!("unknown character {token}")))
}
}
}
Self(key, modifiers)
} else {
return Err(format!("TuiKey: unexpected: {word}").into())
})
} else {
return Err(format!("TuiKey: unspecified").into())
}
}
pub fn to_crossterm (&self) -> Option<Event> {
self.0.map(|code|Event::Key(KeyEvent {
code,
modifiers: self.1,
kind: KeyEventKind::Press,
state: KeyEventState::NONE,
}))
}
}
impl Out for TuiOut {
type Unit = u16;
#[inline] fn area (&self) -> XYWH<u16> { self.area }
#[inline] fn area_mut (&mut self) -> &mut XYWH<u16> { &mut self.area }
#[inline] fn place_at <'t, T: Draw<Self> + ?Sized> (&mut self, area: XYWH<u16>, content: &'t T) {
let last = self.area();
*self.area_mut() = area;
content.draw(self);
*self.area_mut() = last;
}
}
impl TuiOut {
#[inline] pub fn with_rect (&mut self, area: XYWH<u16>) -> &mut Self { self.area = area; self }
pub fn update (&mut self, area: XYWH<u16>, callback: &impl Fn(&mut Cell, u16, u16)) { tui_update(&mut self.buffer, area, callback); }
pub fn fill_char (&mut self, area: XYWH<u16>, c: char) { self.update(area, &|cell,_,_|{cell.set_char(c);}) }
pub fn fill_bg (&mut self, area: XYWH<u16>, color: Color) { self.update(area, &|cell,_,_|{cell.set_bg(color);}) }
pub fn fill_fg (&mut self, area: XYWH<u16>, color: Color) { self.update(area, &|cell,_,_|{cell.set_fg(color);}) }
pub fn fill_mod (&mut self, area: XYWH<u16>, on: bool, modifier: Modifier) {
if on {
self.update(area, &|cell,_,_|cell.modifier.insert(modifier))
} else {
self.update(area, &|cell,_,_|cell.modifier.remove(modifier))
}
}
pub fn fill_bold (&mut self, area: XYWH<u16>, on: bool) { self.fill_mod(area, on, Modifier::BOLD) }
pub fn fill_reversed (&mut self, area: XYWH<u16>, on: bool) { self.fill_mod(area, on, Modifier::REVERSED) }
pub fn fill_crossed_out (&mut self, area: XYWH<u16>, on: bool) { self.fill_mod(area, on, Modifier::CROSSED_OUT) }
pub fn fill_ul (&mut self, area: XYWH<u16>, color: Option<Color>) {
if let Some(color) = color {
self.update(area, &|cell,_,_|{
cell.modifier.insert(ratatui::prelude::Modifier::UNDERLINED);
cell.underline_color = color;
})
} else {
self.update(area, &|cell,_,_|{
cell.modifier.remove(ratatui::prelude::Modifier::UNDERLINED);
})
}
}
pub fn tint_all (&mut self, fg: Color, bg: Color, modifier: Modifier) {
for cell in self.buffer.content.iter_mut() {
cell.fg = fg;
cell.bg = bg;
cell.modifier = modifier;
}
}
pub fn blit (&mut self, text: &impl AsRef<str>, x: u16, y: u16, style: Option<Style>) {
let text = text.as_ref();
let buf = &mut self.buffer;
let style = style.unwrap_or(Style::default());
if x < buf.area.width && y < buf.area.height {
buf.set_string(x, y, text, style);
}
}
/// Write a line of text
///
/// TODO: do a paragraph (handle newlines)
pub fn text (&mut self, text: &impl AsRef<str>, x0: u16, y: u16, max_width: u16) {
let text = text.as_ref();
let buf = &mut self.buffer;
let mut string_width: u16 = 0;
for character in text.chars() {
let x = x0 + string_width;
let character_width = character.width().unwrap_or(0) as u16;
string_width += character_width;
if string_width > max_width {
break
}
if let Some(cell) = buf.cell_mut(ratatui::prelude::Position { x, y }) {
cell.set_char(character);
} else {
break
}
}
}
}
impl BigBuffer {
pub fn new (width: usize, height: usize) -> Self {
Self { width, height, content: vec![Cell::default(); width*height] }
}
pub fn get (&self, x: usize, y: usize) -> Option<&Cell> {
let i = self.index_of(x, y);
self.content.get(i)
}
pub fn get_mut (&mut self, x: usize, y: usize) -> Option<&mut Cell> {
let i = self.index_of(x, y);
self.content.get_mut(i)
}
pub fn index_of (&self, x: usize, y: usize) -> usize {
y * self.width + x
}
}
// A single color within item theme parameters, in OKHSL and RGB representations.
impl ItemColor {
pub const fn from_rgb (rgb: Color) -> Self {
Self { rgb, okhsl: Okhsl::new_const(OklabHue::new(0.0), 0.0, 0.0) }
}
pub const fn from_okhsl (okhsl: Okhsl<f32>) -> Self {
Self { rgb: Color::Rgb(0, 0, 0), okhsl }
}
pub fn random () -> Self {
let mut rng = thread_rng();
let lo = Okhsl::new(-180.0, 0.01, 0.25);
let hi = Okhsl::new( 180.0, 0.9, 0.5);
UniformOkhsl::new(lo, hi).sample(&mut rng).into()
}
pub fn random_dark () -> Self {
let mut rng = thread_rng();
let lo = Okhsl::new(-180.0, 0.025, 0.075);
let hi = Okhsl::new( 180.0, 0.5, 0.150);
UniformOkhsl::new(lo, hi).sample(&mut rng).into()
}
pub fn random_near (color: Self, distance: f32) -> Self {
color.mix(Self::random(), distance)
}
pub fn mix (&self, other: Self, distance: f32) -> Self {
if distance > 1.0 { panic!("color mixing takes distance between 0.0 and 1.0"); }
self.okhsl.mix(other.okhsl, distance).into()
}
}
impl ItemTheme {
pub const G: [Self;256] = {
let mut builder = konst::array::ArrayBuilder::new();
while !builder.is_full() {
let index = builder.len() as u8;
let light = (index as f64 * 1.15) as u8;
let lighter = (index as f64 * 1.7) as u8;
let lightest = (index as f64 * 1.85) as u8;
let dark = (index as f64 * 0.9) as u8;
let darker = (index as f64 * 0.6) as u8;
let darkest = (index as f64 * 0.3) as u8;
builder.push(ItemTheme {
base: ItemColor::from_rgb(Color::Rgb(index, index, index )),
light: ItemColor::from_rgb(Color::Rgb(light, light, light, )),
lighter: ItemColor::from_rgb(Color::Rgb(lighter, lighter, lighter, )),
lightest: ItemColor::from_rgb(Color::Rgb(lightest, lightest, lightest, )),
dark: ItemColor::from_rgb(Color::Rgb(dark, dark, dark, )),
darker: ItemColor::from_rgb(Color::Rgb(darker, darker, darker, )),
darkest: ItemColor::from_rgb(Color::Rgb(darkest, darkest, darkest, )),
});
}
builder.build()
};
pub fn random () -> Self { ItemColor::random().into() }
pub fn random_near (color: Self, distance: f32) -> Self {
color.base.mix(ItemColor::random(), distance).into()
}
pub const G00: Self = {
let color: ItemColor = ItemColor {
okhsl: Okhsl { hue: OklabHue::new(0.0), lightness: 0.0, saturation: 0.0 },
rgb: Color::Rgb(0, 0, 0)
};
Self {
base: color,
light: color,
lighter: color,
lightest: color,
dark: color,
darker: color,
darkest: color,
}
};
pub fn from_tui_color (base: Color) -> Self {
Self::from_item_color(ItemColor::from_rgb(base))
}
pub fn from_item_color (base: ItemColor) -> Self {
let mut light = base.okhsl;
light.lightness = (light.lightness * 1.3).min(1.0);
let mut lighter = light;
lighter.lightness = (lighter.lightness * 1.3).min(1.0);
let mut lightest = base.okhsl;
lightest.lightness = 0.95;
let mut dark = base.okhsl;
dark.lightness = (dark.lightness * 0.75).max(0.0);
dark.saturation = (dark.saturation * 0.75).max(0.0);
let mut darker = dark;
darker.lightness = (darker.lightness * 0.66).max(0.0);
darker.saturation = (darker.saturation * 0.66).max(0.0);
let mut darkest = darker;
darkest.lightness = 0.1;
darkest.saturation = (darkest.saturation * 0.50).max(0.0);
Self {
base,
light: light.into(),
lighter: lighter.into(),
lightest: lightest.into(),
dark: dark.into(),
darker: darker.into(),
darkest: darkest.into(),
}
}
}
impl<T> Phat<T> {
pub const LO: &'static str = "▄";
pub const HI: &'static str = "▀";
/// A phat line
pub fn lo (fg: Color, bg: Color) -> impl Content<TuiOut> {
Fixed::Y(1, Tui::fg_bg(fg, bg, Repeat::X(Self::LO)))
}
/// A phat line
pub fn hi (fg: Color, bg: Color) -> impl Content<TuiOut> {
Fixed::Y(1, Tui::fg_bg(fg, bg, Repeat::X(Self::HI)))
}
}
impl Scrollbar {
const ICON_DEC_V: &[char] = &['▲'];
const ICON_INC_V: &[char] = &['▼'];
const ICON_DEC_H: &[char] = &[' ', '🞀', ' '];
const ICON_INC_H: &[char] = &[' ', '🞂', ' '];
}
impl<'a, T: AsRef<str>> TrimString<T> {
fn as_ref (&self) -> TrimStringRef<'_, T> { TrimStringRef(self.0, &self.1) }
}
impl<O: Out, T: Draw<O>> ErrorBoundary<O, T> {
pub fn new (content: Perhaps<T>) -> Self { Self(Default::default(), content) }
}
mod content {
use super::*;
impl<S: BorderStyle, W: Content<TuiOut>> HasContent<TuiOut> for Bordered<S, W> {
fn content (&self) -> impl Content<TuiOut> {
Fill::XY(lay!( When::new(self.0, Border(self.0, self.1)), Pad::XY(1, 1, &self.2) ))
}
}
impl<
A: Content<TuiOut>,
B: Content<TuiOut>,
C: Content<TuiOut>,
> HasContent<TuiOut> for Tryptich<A, B, C> {
fn content (&self) -> impl Content<TuiOut> {
let Self { top, h, left: (w_a, ref a), middle: (w_b, ref b), right: (w_c, ref c) } = *self;
Fixed::Y(h, if top {
Bsp::a(
Fill::X(Align::n(Fixed::X(w_b, Align::x(Tui::bg(Color::Reset, b))))),
Bsp::a(
Fill::X(Align::nw(Fixed::X(w_a, Tui::bg(Color::Reset, a)))),
Fill::X(Align::ne(Fixed::X(w_c, Tui::bg(Color::Reset, c)))),
),
)
} else {
Bsp::a(
Fill::XY(Align::c(Fixed::X(w_b, Align::x(Tui::bg(Color::Reset, b))))),
Bsp::a(
Fill::XY(Align::w(Fixed::X(w_a, Tui::bg(Color::Reset, a)))),
Fill::XY(Align::e(Fixed::X(w_c, Tui::bg(Color::Reset, c)))),
),
)
})
}
}
impl<T: Content<TuiOut>> HasContent<TuiOut> for Phat<T> {
fn content (&self) -> impl Content<TuiOut> {
let [fg, bg, hi, lo] = self.colors;
let top = Fixed::Y(1, Self::lo(bg, hi));
let low = Fixed::Y(1, Self::hi(bg, lo));
let content = Tui::fg_bg(fg, bg, &self.content);
Min::XY(self.width, self.height, Bsp::s(top, Bsp::n(low, Fill::XY(content))))
}
}
}
mod layout {
use super::*;
impl<T: Content<TuiOut>> Layout<TuiOut> for Modify<T> {}
impl<T: Content<TuiOut>> Layout<TuiOut> for Styled<T> {}
impl Layout<TuiOut> for Repeat<'_> {}
impl Layout<TuiOut> for &str {
fn layout (&self, to: XYWH<u16>) -> XYWH<u16> {
to.centered_xy([width_chars_max(to.w(), self), 1])
}
}
impl Layout<TuiOut> for String {
fn layout (&self, to: XYWH<u16>) -> XYWH<u16> {
self.as_str().layout(to)
}
}
impl Layout<TuiOut> for Arc<str> {
fn layout (&self, to: XYWH<u16>) -> XYWH<u16> {
self.as_ref().layout(to)
}
}
impl<'a, T: AsRef<str>> Layout<TuiOut> for TrimString<T> {
fn layout (&self, to: XYWH<u16>) -> XYWH<u16> {
Layout::layout(&self.as_ref(), to)
}
}
impl<'a, T: AsRef<str>> Layout<TuiOut> for TrimStringRef<'a, T> {
fn layout (&self, to: XYWH<u16>) -> XYWH<u16> {
XYWH(to.x(), to.y(), to.w().min(self.0).min(self.1.as_ref().width() as u16), to.h())
}
}
}
mod draw {
use super::*;
impl<T: Draw<TuiOut>> Draw<TuiOut> for ErrorBoundary<TuiOut, T> {
fn draw (&self, to: &mut TuiOut) {
match self.1.as_ref() {
Ok(Some(content)) => content.draw(to),
Ok(None) => to.blit(&"empty?", 0, 0, Some(Style::default().yellow())),
Err(e) => {
let err_fg = Color::Rgb(255,224,244);
let err_bg = Color::Rgb(96,24,24);
let title = Bsp::e(Tui::bold(true, "oops. "), "rendering failed.");
let error = Bsp::e("\"why?\" ", Tui::bold(true, format!("{e}")));
to.place(&Tui::fg_bg(err_fg, err_bg, Bsp::s(title, error)))
}
}
}
}
impl Draw<TuiOut> for u64 {
fn draw (&self, _to: &mut TuiOut) {
todo!()
}
}
impl Draw<TuiOut> for f64 {
fn draw (&self, _to: &mut TuiOut) {
todo!()
}
}
impl Draw<TuiOut> for Repeat<'_> {
fn draw (&self, to: &mut TuiOut) {
let XYWH(x, y, w, h) = to.area();
match self {
Self::X(c) => {
for x in x..x+w {
if let Some(cell) = to.buffer.cell_mut(Position::from((x, y))) {
cell.set_symbol(&c);
}
}
},
Self::Y(c) => {
for y in y..y+h {
if let Some(cell) = to.buffer.cell_mut(Position::from((x, y))) {
cell.set_symbol(&c);
}
}
},
Self::XY(c) => {
let a = c.len();
for (_v, y) in (y..y+h).enumerate() {
for (u, x) in (x..x+w).enumerate() {
if let Some(cell) = to.buffer.cell_mut(Position::from((x, y))) {
let u = u % a;
cell.set_symbol(&c[u..u+1]);
}
}
}
},
}
}
}
impl Draw<TuiOut> for Scrollbar {
fn draw (&self, to: &mut TuiOut) {
let XYWH(x1, y1, w, h) = to.area();
match self {
Self::X { .. } => {
let x2 = x1 + w;
for (i, x) in (x1..=x2).enumerate() {
if let Some(cell) = to.buffer.cell_mut(Position::from((x, y1))) {
if i < (Self::ICON_DEC_H.len()) {
cell.set_fg(Rgb(255, 255, 255));
cell.set_bg(Rgb(0, 0, 0));
cell.set_char(Self::ICON_DEC_H[i as usize]);
} else if i > (w as usize - Self::ICON_INC_H.len()) {
cell.set_fg(Rgb(255, 255, 255));
cell.set_bg(Rgb(0, 0, 0));
cell.set_char(Self::ICON_INC_H[w as usize - i]);
} else if false {
cell.set_fg(Rgb(255, 255, 255));
cell.set_bg(Reset);
cell.set_char('━');
} else {
cell.set_fg(Rgb(0, 0, 0));
cell.set_bg(Reset);
cell.set_char('╌');
}
}
}
},
Self::Y { .. } => {
let y2 = y1 + h;
for (i, y) in (y1..=y2).enumerate() {
if let Some(cell) = to.buffer.cell_mut(Position::from((x1, y))) {
if (i as usize) < (Self::ICON_DEC_V.len()) {
cell.set_fg(Rgb(255, 255, 255));
cell.set_bg(Rgb(0, 0, 0));
cell.set_char(Self::ICON_DEC_V[i as usize]);
} else if (i as usize) > (h as usize - Self::ICON_INC_V.len()) {
cell.set_fg(Rgb(255, 255, 255));
cell.set_bg(Rgb(0, 0, 0));
cell.set_char(Self::ICON_INC_V[h as usize - i]);
} else if false {
cell.set_fg(Rgb(255, 255, 255));
cell.set_bg(Reset);
cell.set_char('‖'); // ━
} else {
cell.set_fg(Rgb(0, 0, 0));
cell.set_bg(Reset);
cell.set_char('╎'); // ━
}
}
}
},
}
}
}
impl Draw<TuiOut> for &str {
fn draw (&self, to: &mut TuiOut) {
let XYWH(x, y, w, ..) = self.layout(to.area());
to.text(&self, x, y, w)
}
}
impl Draw<TuiOut> for String {
fn draw (&self, to: &mut TuiOut) {
self.as_str().draw(to)
}
}
impl Draw<TuiOut> for Arc<str> {
fn draw (&self, to: &mut TuiOut) { self.as_ref().draw(to) }
}
impl<T: Content<TuiOut>> Draw<TuiOut> for Foreground<Color, T> {
fn draw (&self, to: &mut TuiOut) {
let area = self.layout(to.area());
to.fill_fg(area, self.0);
to.place_at(area, &self.1);
}
}
impl<T: Content<TuiOut>> Draw<TuiOut> for Background<Color, T> {
fn draw (&self, to: &mut TuiOut) {
let area = self.layout(to.area());
to.fill_bg(area, self.0);
to.place_at(area, &self.1);
}
}
impl<T: Content<TuiOut>> Draw<TuiOut> for Modify<T> {
fn draw (&self, to: &mut TuiOut) {
to.fill_mod(to.area(), self.0, self.1);
self.2.draw(to)
}
}
impl<T: Content<TuiOut>> Draw<TuiOut> for Styled<T> {
fn draw (&self, to: &mut TuiOut) {
to.place(&self.1);
// TODO write style over area
}
}
impl<S: BorderStyle> Draw<TuiOut> for Border<S> {
fn draw (&self, to: &mut TuiOut) {
let Border(enabled, style) = self;
if *enabled {
let area = to.area();
if area.w() > 0 && area.y() > 0 {
to.blit(&style.border_nw(), area.x(), area.y(), style.style());
to.blit(&style.border_ne(), area.x() + area.w() - 1, area.y(), style.style());
to.blit(&style.border_sw(), area.x(), area.y() + area.h() - 1, style.style());
to.blit(&style.border_se(), area.x() + area.w() - 1, area.y() + area.h() - 1, style.style());
for x in area.x()+1..area.x()+area.w()-1 {
to.blit(&style.border_n(), x, area.y(), style.style());
to.blit(&style.border_s(), x, area.y() + area.h() - 1, style.style());
}
for y in area.y()+1..area.y()+area.h()-1 {
to.blit(&style.border_w(), area.x(), y, style.style());
to.blit(&style.border_e(), area.x() + area.w() - 1, y, style.style());
}
}
}
}
}
impl<'a, T: AsRef<str>> Draw<TuiOut> for TrimString<T> {
fn draw (&self, to: &mut TuiOut) { Draw::draw(&self.as_ref(), to) }
}
impl<T: AsRef<str>> Draw<TuiOut> for TrimStringRef<'_, T> {
fn draw (&self, target: &mut TuiOut) {
let area = target.area();
let mut width: u16 = 1;
let mut chars = self.1.as_ref().chars();
while let Some(c) = chars.next() {
if width > self.0 || width > area.w() {
break
}
if let Some(cell) = target.buffer.cell_mut(Position {
x: area.x() + width - 1,
y: area.y()
}) {
cell.set_char(c);
}
width += c.width().unwrap_or(0) as u16;
}
}
}
}
/// TUI helper defs.
impl Tui {
pub const fn fg <T> (color: Color, w: T) -> Foreground<Color, T> { Foreground(color, w) }
pub const fn bg <T> (color: Color, w: T) -> Background<Color, T> { Background(color, w) }
pub const fn fg_bg <T> (fg: Color, bg: Color, w: T) -> Background<Color, Foreground<Color, T>> { Background(bg, Foreground(fg, w)) }
pub const fn modify <T> (enable: bool, modifier: Modifier, w: T) -> Modify<T> { Modify(enable, modifier, w) }
pub const fn bold <T> (enable: bool, w: T) -> Modify<T> { Self::modify(enable, Modifier::BOLD, w) }
pub const fn border <S, T> (enable: bool, style: S, w: T) -> Bordered<S, T> { Bordered(enable, style, w) }
pub const fn null () -> Color { Color::Reset }
pub const fn red () -> Color { Color::Rgb(255,0, 0) }
pub const fn orange () -> Color { Color::Rgb(255,128,0) }
pub const fn yellow () -> Color { Color::Rgb(255,255,0) }
pub const fn brown () -> Color { Color::Rgb(128,255,0) }
pub const fn green () -> Color { Color::Rgb(0,255,0) }
pub const fn electric () -> Color { Color::Rgb(0,255,128) }
pub const fn g (g: u8) -> Color { Color::Rgb(g, g, g) }
//fn bg0 () -> Color { Color::Rgb(20, 20, 20) }
//fn bg () -> Color { Color::Rgb(28, 35, 25) }
//fn border_bg () -> Color { Color::Rgb(40, 50, 30) }
//fn border_fg (f: bool) -> Color { if f { Self::bo1() } else { Self::bo2() } }
//fn title_fg (f: bool) -> Color { if f { Self::ti1() } else { Self::ti2() } }
//fn separator_fg (_: bool) -> Color { Color::Rgb(0, 0, 0) }
//fn mode_bg () -> Color { Color::Rgb(150, 160, 90) }
//fn mode_fg () -> Color { Color::Rgb(255, 255, 255) }
//fn status_bar_bg () -> Color { Color::Rgb(28, 35, 25) }
//fn bo1 () -> Color { Color::Rgb(100, 110, 40) }
//fn bo2 () -> Color { Color::Rgb(70, 80, 50) }
//fn ti1 () -> Color { Color::Rgb(150, 160, 90) }
//fn ti2 () -> Color { Color::Rgb(120, 130, 100) }
}
from!(BigBuffer: |size:(usize, usize)| Self::new(size.0, size.1));
from!(ItemTheme: |base: Color| Self::from_tui_color(base));
from!(ItemTheme: |base: ItemColor| Self::from_item_color(base));
from!(ItemColor: |okhsl: Okhsl<f32>| Self { okhsl, rgb: okhsl_to_rgb(okhsl) });
from!(ItemColor: |rgb: Color| Self { rgb, okhsl: rgb_to_okhsl(rgb) });
impl_debug!(BigBuffer |self, f| {
write!(f, "[BB {}x{} ({})]", self.width, self.height, self.content.len())
});

100
tui/src/tui_structs.rs
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@ -1,100 +0,0 @@
use crate::*;
/// The `Tui` struct (the *engine*) implements the
/// `tengri_input::Input` and `tengri_output::Out` traits.
/// At launch, the `Tui` engine spawns two threads, the render thread and the input thread.
/// the application may further spawn other threads. All threads communicate using shared ownership:
/// `Arc<RwLock<T>>` and `Arc<AtomicT>`. Thus, at launch the engine and application instances are expected to be wrapped in `Arc<RwLock>`.
pub struct Tui {
pub exited: Arc<AtomicBool>,
pub backend: CrosstermBackend<Stdout>,
pub buffer: Buffer,
pub area: [u16;4],
pub perf: PerfModel,
}
#[derive(Debug, Clone)] pub struct TuiIn {
/// Input event
pub event: TuiEvent,
/// Exit flag
pub exited: Arc<AtomicBool>,
}
#[derive(Debug, Clone, Eq, PartialEq, PartialOrd)] pub struct TuiEvent(pub Event);
#[derive(Debug, Clone, Eq, PartialEq, PartialOrd)] pub struct TuiKey(
pub Option<KeyCode>,
pub KeyModifiers
);
#[derive(Default)] pub struct TuiOut {
pub buffer: Buffer,
pub area: XYWH<u16>,
}
/// TUI buffer sized by `usize` instead of `u16`.
#[derive(Default)] pub struct BigBuffer {
pub width: usize,
pub height: usize,
pub content: Vec<Cell>
}
/// A color in OKHSL and RGB representations.
#[derive(Debug, Default, Copy, Clone, PartialEq)] pub struct ItemColor {
pub okhsl: Okhsl<f32>,
pub rgb: Color,
}
/// A color in OKHSL and RGB with lighter and darker variants.
#[derive(Debug, Default, Copy, Clone, PartialEq)] pub struct ItemTheme {
pub base: ItemColor,
pub light: ItemColor,
pub lighter: ItemColor,
pub lightest: ItemColor,
pub dark: ItemColor,
pub darker: ItemColor,
pub darkest: ItemColor,
}
pub struct Modify<T>(pub bool, pub Modifier, pub T);
pub struct Styled<T>(pub Option<Style>, pub T);
/// Displays an owned [str]-like with fixed maximum width.
///
/// Width is computed using [unicode_width].
pub struct TrimString<T: AsRef<str>>(pub u16, pub T);
/// Displays a borrowed [str]-like with fixed maximum width
///
/// Width is computed using [unicode_width].
pub struct TrimStringRef<'a, T: AsRef<str>>(pub u16, pub &'a T);
/// Thunks can be natural error boundaries!
pub struct ErrorBoundary<O: Out, T: Draw<O>>(
pub std::marker::PhantomData<O>,
pub Perhaps<T>
);
/// Repeat a string, e.g. for background
pub enum Repeat<'a> {
X(&'a str),
Y(&'a str),
XY(&'a str)
}
/// Scroll indicator
pub enum Scrollbar {
/// Horizontal scrollbar
X { offset: usize, length: usize, total: usize, },
/// Vertical scrollbar
Y { offset: usize, length: usize, total: usize, }
}
/// A cell that takes up 3 rows on its own,
/// but stacks, giving (N+1)*2 rows per N cells.
pub struct Phat<T> {
pub width: u16,
pub height: u16,
pub content: T,
pub colors: [Color;4],
}

18
tui/src/tui_test.rs
View file

@ -1,23 +1,5 @@
use crate::*; use crate::*;
#[test] fn test_tui_engine () -> Usually<()> {
//use std::sync::{Arc, RwLock};
struct TestComponent(String);
impl Draw<TuiOut> for TestComponent {
fn draw (&self, _to: &mut TuiOut) {
}
}
impl Handle<TuiIn> for TestComponent {
fn handle (&mut self, _from: &TuiIn) -> Perhaps<bool> {
Ok(None)
}
}
let engine = Tui::run(false, TestComponent("hello world".into()))?;
engine.read().unwrap().exited.store(true, std::sync::atomic::Ordering::Relaxed);
//engine.run(&state)?;
Ok(())
}
//#[test] fn test_parse_key () { //#[test] fn test_parse_key () {
////use KeyModifiers as Mods; ////use KeyModifiers as Mods;
//let _test = |x: &str, y|assert_eq!(KeyMatcher::new(x).build(), Some(Event::Key(y))); //let _test = |x: &str, y|assert_eq!(KeyMatcher::new(x).build(), Some(Event::Key(y)));

107
tui/src/tui_traits.rs
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@ -1,107 +0,0 @@
use crate::*;
pub trait TuiDraw = Draw<TuiOut>;
pub trait TuiLayout = Layout<TuiOut>;
pub trait TuiContent = Content<TuiOut>;
pub trait TuiHandle = Handle<TuiIn>;
pub trait TuiWidget = TuiDraw + TuiHandle;
pub trait HasColor { fn color (&self) -> ItemColor; }
pub trait BorderStyle: Content<TuiOut> + Copy {
fn enabled (&self) -> bool;
fn enclose (self, w: impl Content<TuiOut>) -> impl Content<TuiOut> {
Bsp::b(Fill::XY(Border(self.enabled(), self)), w)
}
fn enclose2 (self, w: impl Content<TuiOut>) -> impl Content<TuiOut> {
Bsp::b(Pad::XY(1, 1, Fill::XY(Border(self.enabled(), self))), w)
}
fn enclose_bg (self, w: impl Content<TuiOut>) -> impl Content<TuiOut> {
Tui::bg(self.style().unwrap().bg.unwrap_or(Color::Reset),
Bsp::b(Fill::XY(Border(self.enabled(), self)), w))
}
const NW: &'static str = "";
const N: &'static str = "";
const NE: &'static str = "";
const E: &'static str = "";
const SE: &'static str = "";
const S: &'static str = "";
const SW: &'static str = "";
const W: &'static str = "";
const N0: &'static str = "";
const S0: &'static str = "";
const W0: &'static str = "";
const E0: &'static str = "";
fn border_n (&self) -> &str { Self::N }
fn border_s (&self) -> &str { Self::S }
fn border_e (&self) -> &str { Self::E }
fn border_w (&self) -> &str { Self::W }
fn border_nw (&self) -> &str { Self::NW }
fn border_ne (&self) -> &str { Self::NE }
fn border_sw (&self) -> &str { Self::SW }
fn border_se (&self) -> &str { Self::SE }
#[inline] fn draw <'a> (
&self, to: &mut TuiOut
) -> Usually<()> {
if self.enabled() {
self.draw_horizontal(to, None)?;
self.draw_vertical(to, None)?;
self.draw_corners(to, None)?;
}
Ok(())
}
#[inline] fn draw_horizontal (
&self, to: &mut TuiOut, style: Option<Style>
) -> Usually<XYWH<u16>> {
let area = to.area();
let style = style.or_else(||self.style_horizontal());
let [x, x2, y, y2] = area.lrtb();
for x in x..x2.saturating_sub(1) {
to.blit(&Self::N, x, y, style);
to.blit(&Self::S, x, y2.saturating_sub(1), style)
}
Ok(area)
}
#[inline] fn draw_vertical (
&self, to: &mut TuiOut, style: Option<Style>
) -> Usually<XYWH<u16>> {
let area = to.area();
let style = style.or_else(||self.style_vertical());
let [x, x2, y, y2] = area.lrtb();
let h = y2 - y;
if h > 1 {
for y in y..y2.saturating_sub(1) {
to.blit(&Self::W, x, y, style);
to.blit(&Self::E, x2.saturating_sub(1), y, style);
}
} else if h > 0 {
to.blit(&Self::W0, x, y, style);
to.blit(&Self::E0, x2.saturating_sub(1), y, style);
}
Ok(area)
}
#[inline] fn draw_corners (
&self, to: &mut TuiOut, style: Option<Style>
) -> Usually<XYWH<u16>> {
let area = to.area();
let style = style.or_else(||self.style_corners());
let XYWH(x, y, width, height) = area;
if width > 1 && height > 1 {
to.blit(&Self::NW, x, y, style);
to.blit(&Self::NE, x + width - 1, y, style);
to.blit(&Self::SW, x, y + height - 1, style);
to.blit(&Self::SE, x + width - 1, y + height - 1, style);
}
Ok(area)
}
#[inline] fn style (&self) -> Option<Style> { None }
#[inline] fn style_horizontal (&self) -> Option<Style> { self.style() }
#[inline] fn style_vertical (&self) -> Option<Style> { self.style() }
#[inline] fn style_corners (&self) -> Option<Style> { self.style() }
}