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more entrypoint macros

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facile pop culture reference 2026-07-25 15:13:05 +03:00
parent 4cfe8d087c
commit 66ac2bcbb6
18 changed files with 696 additions and 663 deletions
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28
Cargo.lock generated
View file

@ -527,6 +527,7 @@ dependencies = [
"dizzle_proc", "dizzle_proc",
"itertools 0.14.0", "itertools 0.14.0",
"konst", "konst",
"peg",
"thiserror 2.0.18", "thiserror 2.0.18",
] ]
@ -1390,6 +1391,33 @@ version = "1.0.15"
source = "registry+https://github.com/rust-lang/crates.io-index" source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "57c0d7b74b563b49d38dae00a0c37d4d6de9b432382b2892f0574ddcae73fd0a" checksum = "57c0d7b74b563b49d38dae00a0c37d4d6de9b432382b2892f0574ddcae73fd0a"
[[package]]
name = "peg"
version = "0.8.6"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "0aad070be5b63aa72103f2fcdd70a83adbd5e90112ce5b574171ff1c65501773"
dependencies = [
"peg-macros",
"peg-runtime",
]
[[package]]
name = "peg-macros"
version = "0.8.6"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "ddd8ef6825cae95355031ae26a99b616a2a21f22ba2de0197c43dfb05acbe7ee"
dependencies = [
"peg-runtime",
"proc-macro2",
"quote",
]
[[package]]
name = "peg-runtime"
version = "0.8.6"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "7011d97b484a5ebdc4b1fdb3b12d5e4bbbea56e9d22b688f2e79e04b65a7d8a6"
[[package]] [[package]]
name = "percent-encoding" name = "percent-encoding"
version = "2.3.2" version = "2.3.2"

7
Justfile
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@ -30,7 +30,10 @@ doc:
cargo doc cargo doc
example-tui-00: example-tui-00:
cargo run --example tui_00 cargo run --example mode_0
example-tui-01: example-tui-01:
cargo run --example tui_01 cargo run --example mode_1
example-tui-02:
cargo run --example mode_2

2
dizzle

@ -1 +1 @@
Subproject commit e9768535f35cd298a7b1035825e86cd13347792d Subproject commit e4e01c025befd4fd7ed217fa5cc492373f5d7e3b

3
examples/mode_00.rs Normal file
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@ -0,0 +1,3 @@
//! Mode 0: Direct draw
use ::{std::sync::{Arc, RwLock}, ratatui::style::Color, tengri::*};
fn main () {}

128
examples/mode_01.rs Normal file
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@ -0,0 +1,128 @@
//! Mode 01
use ::std::sync::{Arc, RwLock};
use ::crossterm::event::{Event::*, KeyEvent, KeyCode::*};
use ::ratatui::style::Color;
use ::tengri::{*, lang::*};
tui_app!(State {
/** Command history (undo/redo). */
history: Vec<Action>,
/** User-controllable value. */
cursor: usize,
/** Rendered window size. */
size: Sizer,
});
tui_keys!(self: State, input {
Ok(if let Key(KeyEvent { code, .. }) = input.0 {
match code {
Up | Right => { self.next()?.map(|x|self.history.push(x)); },
Down | Left => { self.prev()?.map(|x|self.history.push(x)); },
_ => {}
}
})
});
tui_view!(self: State {
let index = self.cursor + 1;
let wh = (self.size.w(), self.size.h());
let src = VIEWS.get(self.cursor).unwrap_or(&"");
let heading = format!("State {}/{} in {:?}", index, VIEWS.len(), &wh);
let title = bg(Color::Rgb(60, 10, 10), heading.align_n().push_y(1));
let code = bg(Color::Rgb(10, 60, 10), format!("{}", src).align_n().push_y(2));
let widget = thunk(move|to: &mut Tui|self.interpret(to, &src));
self.size.of(south(title, north(code, widget)))
});
tui_ns!(self: State, to, src {
match src.src()? {
Some(":foo") => "foo".draw(to),
Some(":bar") => "bar".draw(to),
Some(":foobar") => "FOOBAR".draw(to),
_ => todo!()
}
});
#[derive(Debug)]
enum Action {
/** Increment cursor */ Next,
/** Decrement cursor */ Prev,
}
impl Action {
fn eval (&self, state: &mut State) -> Perhaps<Self> {
use Action::*;
match self { Next => state.next(), Prev => state.prev(), }
}
}
impl State {
fn next (&mut self) -> Perhaps<Action> {
self.cursor = (self.cursor + 1) % VIEWS.len();
Ok(Some(Action::Prev))
}
fn prev (&mut self) -> Perhaps<Action> {
self.cursor = if self.cursor > 0 { self.cursor - 1 } else { VIEWS.len() - 1 };
Ok(Some(Action::Next))
}
}
const VIEWS: &'static [&'static str] = &[
stringify! { :foobar },
stringify! { (bg (g 8) :foobar) },
stringify! { (fill/xy :foobar) },
stringify! { (bsp/s :foo :bar) },
stringify! { (fixed/xy 20 10 :foobar) },
stringify! { (bsp/s (fixed/xy 5 6 :foo) (fixed/xy 7 8 :bar)) },
stringify! { (bsp/e (fixed/xy 5 6 :foo) (fixed/xy 7 8 :bar)) },
stringify! { (bsp/n (fixed/xy 5 6 :foo) (fixed/xy 7 8 :bar)) },
stringify! { (bsp/w (fixed/xy 5 6 :foo) (fixed/xy 7 8 :bar)) },
stringify! { (bsp/a (fixed/xy 5 6 :foo) (fixed/xy 7 8 :bar)) },
stringify! { (bsp/b (fixed/xy 5 6 :foo) (fixed/xy 7 8 :bar)) },
stringify! {
(bsp/s
(bsp/e (align/nw (fixed/xy 5 3 :foo))
(bsp/e (align/n (fixed/xy 5 3 :foo))
(align/ne (fixed/xy 5 3 :foo))))
(bsp/s
(bsp/e (align/w (fixed/xy 5 3 :foo))
(bsp/e (align/c (fixed/xy 5 3 :foo))
(align/e (fixed/xy 5 3 :foo))))
(bsp/e (align/sw (fixed/xy 5 3 :foo))
(bsp/e (align/s (fixed/xy 5 3 :foo))
(align/se (fixed/xy 5 3 :foo))))))
},
stringify! {
(bsp/s
(bsp/e (fixed/xy 8 5 (align/nw :foo))
(bsp/e (fixed/xy 8 5 (align/n :foo))
(fixed/xy 8 5 (align/ne :foo))))
(bsp/s
(bsp/e (fixed/xy 8 5 (align/w :foo))
(bsp/e (fixed/xy 8 5 (align/c :foo))
(fixed/xy 8 5 (align/e :foo))))
(bsp/e (fixed/xy 8 5 (align/sw :foo))
(bsp/e (fixed/xy 8 5 (align/s :foo))
(fixed/xy 8 5 (align/se :foo))))))
},
stringify! {
(bsp/s
(bsp/e (grow/xy 1 1 (fixed/xy 8 5 (align/nw :foo)))
(bsp/e (grow/xy 1 1 (fixed/xy 8 5 (align/n :foo)))
(grow/xy 1 1 (fixed/xy 8 5 (align/ne :foo)))))
(bsp/s
(bsp/e (grow/xy 1 1 (fixed/xy 8 5 (align/w :foo)))
(bsp/e (grow/xy 1 1 (fixed/xy 8 5 (align/c :foo)))
(grow/xy 1 1 (fixed/xy 8 5 (align/e :foo)))))
(bsp/e (grow/xy 1 1 (fixed/xy 8 5 (align/sw :foo)))
(bsp/e (grow/xy 1 1 (fixed/xy 8 5 (align/s :foo)))
(grow/xy 1 1 (fixed/xy 8 5 (align/se :foo)))))))
},
stringify! { :map-e },
stringify! { (align/c :map-e) },
stringify! { :map-s },
stringify! { (align/c :map-s) },
stringify! {
(align/c (bg/behind :bg0 (margin/xy 1 1 (col
(bg/behind :bg1 (border/around :border1 (margin/xy 2 1 :label1)))
(bg/behind :bg2 (border/around :border2 (margin/xy 4 2 :label2)))
(bg/behind :bg3 (border/around :border3 (margin/xy 6 3 :label3)))))))
},
];
//handle!(TuiIn: |self: State, input|Action::from(input).eval(self).map(|_|None));
//view!(State: Tui: [ evaluate_output_expression, evaluate_output_expression_tui ]);
//draw!(State: Tui: [ draw_example ]);
//impl_from!(Action: |input: &TuiIn| todo!());
//fn draw_example (state: &State, to: &mut Tui) {}

1
examples/tui_01.rs → examples/mode_02.rs
View file

@ -1,3 +1,4 @@
//! Mode 02
use ::{std::sync::{Arc, RwLock}, ratatui::style::Color, tengri::*}; use ::{std::sync::{Arc, RwLock}, ratatui::style::Color, tengri::*};
fn main () {} fn main () {}

180
examples/tui_00.rs
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@ -1,180 +0,0 @@
use ::{
std::{io::stdout, sync::{Arc, RwLock}},
ratatui::style::Color,
tengri::{*, lang::*},
};
tui_main!(State {
cursor: 0,
..Default::default()
});
tui_keys!(|self: State, input| {
Ok(())
});
tui_view!(|self: State| {
let index = self.cursor + 1;
let wh = (self.size.w(), self.size.h());
let src = VIEWS.get(self.cursor).unwrap_or(&"");
let heading = format!("State {}/{} in {:?}", index, VIEWS.len(), &wh);
let title = bg(Color::Rgb(60, 10, 10), heading.align_n().push_y(1));
let code = bg(Color::Rgb(10, 60, 10), format!("{}", src).align_n().push_y(2));
let widget = thunk(move|to: &mut Tui|self.interpret(to, &src));
self.size.of(south(title, north(code, widget)))
});
#[dizzle::namespace(bool)]
#[dizzle::namespace(u16)]
#[dizzle::namespace(Option<u16>)]
#[dizzle::namespace(Color)]
#[derive(Debug, Default)]
struct State {
/** Command history (undo/redo). */
history: Vec<Action>,
/** User-controllable value. */
cursor: usize,
/** Rendered window size. */
size: Sizer,
}
impl Interpret<Tui, Option<XYWH<u16>>> for State {
fn interpret_word <'a> (&'a self, to: &mut Tui, lang: &'a impl Symbol) -> Drawn<u16> {
match lang.src()? {
Some(":hello") => "hello".draw(to),
Some(":world") => "world".draw(to),
Some(":hello-world") => "Hello World!".draw(to),
_ => todo!()
}
}
fn interpret_expr <'a> (&'a self, to: &mut Tui, lang: &'a impl Expression) -> Drawn<u16> {
Ok(Some(if let Some(area) = eval_view(self, to, lang)? {
area
} else if let Some(area) = eval_view_tui(self, to, lang)? {
area
} else {
return Err(format!("App::interpret_expr: unexpected: {lang:?}").into())
}))
}
}
#[derive(Debug)] enum Action {
/** Increment cursor */
Next,
/** Decrement cursor */
Prev
}
impl Action {
const BINDS: &'static str = stringify! {
(@left prev)
(@right next)
};
fn eval (&self, state: &mut State) -> Perhaps<Self> {
use Action::*;
match self { Next => Self::next(state), Prev => Self::prev(state), }
}
fn next (state: &mut State) -> Perhaps<Self> {
state.cursor = (state.cursor + 1) % VIEWS.len();
Ok(Some(Self::Prev))
}
fn prev (state: &mut State) -> Perhaps<Self> {
state.cursor = if state.cursor > 0 { state.cursor - 1 } else { VIEWS.len() - 1 };
Ok(Some(Self::Next))
}
}
const VIEWS: &'static [&'static str] = &[
stringify! { :hello-world },
stringify! { (fill/xy :hello-world) },
stringify! { (bsp/s :hello :world) },
stringify! { (fixed/xy 20 10 :hello-world) },
stringify! { (bsp/s (fixed/xy 5 6 :hello) (fixed/xy 7 8 :world)) },
stringify! { (bsp/e (fixed/xy 5 6 :hello) (fixed/xy 7 8 :world)) },
stringify! { (bsp/n (fixed/xy 5 6 :hello) (fixed/xy 7 8 :world)) },
stringify! { (bsp/w (fixed/xy 5 6 :hello) (fixed/xy 7 8 :world)) },
stringify! { (bsp/a (fixed/xy 5 6 :hello) (fixed/xy 7 8 :world)) },
stringify! { (bsp/b (fixed/xy 5 6 :hello) (fixed/xy 7 8 :world)) },
stringify! {
(bsp/s
(bsp/e (align/nw (fixed/xy 5 3 :hello))
(bsp/e (align/n (fixed/xy 5 3 :hello))
(align/ne (fixed/xy 5 3 :hello))))
(bsp/s
(bsp/e (align/w (fixed/xy 5 3 :hello))
(bsp/e (align/c (fixed/xy 5 3 :hello))
(align/e (fixed/xy 5 3 :hello))))
(bsp/e (align/sw (fixed/xy 5 3 :hello))
(bsp/e (align/s (fixed/xy 5 3 :hello))
(align/se (fixed/xy 5 3 :hello))))))
},
stringify! {
(bsp/s
(bsp/e (fixed/xy 8 5 (align/nw :hello))
(bsp/e (fixed/xy 8 5 (align/n :hello))
(fixed/xy 8 5 (align/ne :hello))))
(bsp/s
(bsp/e (fixed/xy 8 5 (align/w :hello))
(bsp/e (fixed/xy 8 5 (align/c :hello))
(fixed/xy 8 5 (align/e :hello))))
(bsp/e (fixed/xy 8 5 (align/sw :hello))
(bsp/e (fixed/xy 8 5 (align/s :hello))
(fixed/xy 8 5 (align/se :hello))))))
},
stringify! {
(bsp/s
(bsp/e (grow/xy 1 1 (fixed/xy 8 5 (align/nw :hello)))
(bsp/e (grow/xy 1 1 (fixed/xy 8 5 (align/n :hello)))
(grow/xy 1 1 (fixed/xy 8 5 (align/ne :hello)))))
(bsp/s
(bsp/e (grow/xy 1 1 (fixed/xy 8 5 (align/w :hello)))
(bsp/e (grow/xy 1 1 (fixed/xy 8 5 (align/c :hello)))
(grow/xy 1 1 (fixed/xy 8 5 (align/e :hello)))))
(bsp/e (grow/xy 1 1 (fixed/xy 8 5 (align/sw :hello)))
(bsp/e (grow/xy 1 1 (fixed/xy 8 5 (align/s :hello)))
(grow/xy 1 1 (fixed/xy 8 5 (align/se :hello)))))))
},
stringify! { :map-e },
stringify! { (align/c :map-e) },
stringify! { :map-s },
stringify! { (align/c :map-s) },
stringify! {
(align/c (bg/behind :bg0 (margin/xy 1 1 (col
(bg/behind :bg1 (border/around :border1 (margin/xy 2 1 :label1)))
(bg/behind :bg2 (border/around :border2 (margin/xy 4 2 :label2)))
(bg/behind :bg3 (border/around :border3 (margin/xy 6 3 :label3)))))))
},
];
//handle!(TuiIn: |self: State, input|Action::from(input).eval(self).map(|_|None));
//view!(State: Tui: [ evaluate_output_expression, evaluate_output_expression_tui ]);
//draw!(State: Tui: [ draw_example ]);
//impl_from!(Action: |input: &TuiIn| todo!());
//fn draw_example (state: &State, to: &mut Tui) {
//}

19
src/draw.rs
View file

@ -7,13 +7,22 @@ use crate::*;
/// struct TestOut { w: u16, h: u16 }; /// struct TestOut { w: u16, h: u16 };
/// impl Wide<u16> for TestOut {} /// impl Wide<u16> for TestOut {}
/// impl Tall<u16> for TestOut {} /// impl Tall<u16> for TestOut {}
/// impl Xy<u16> for TestOut { fn x (&self) -> u16 { 0 } fn y (&self) -> u16 { 0 } } /// impl Xy<u16> for TestOut {
/// fn x (&self) -> u16 { 0 }
/// fn y (&self) -> u16 { 0 }
/// }
/// impl Screen for TestOut { /// impl Screen for TestOut {
/// type Unit = u16; /// type Unit = u16;
/// fn show <D: Draw<Self>> (&mut self, _: D) -> Drawn<u16> { /// fn show (&mut self, _: impl Draw<Self>) -> Perhaps<XYWH<u16>>
/// println!("placed"); /// { println!("placed"); Ok(None) }
/// Ok(None) /// fn area (&self) -> XYWH<Self::Unit>
/// } /// { Default::default() }
/// fn clip <T> (
/// &mut self,
/// area: impl Into<Option<XYWH<u16>>>,
/// draw: impl FnOnce(&mut Self)->T
/// ) -> T
/// { draw(self) }
/// } /// }
/// ///
/// impl_draw!(|self: String, to: TestOut|{ /// impl_draw!(|self: String, to: TestOut|{

1
src/eval.rs
View file

@ -217,6 +217,7 @@ pub fn eval_view_tui <'a, S> (
+ for<'b>Namespace<'b, u16> + for<'b>Namespace<'b, u16>
+ for<'b>Namespace<'b, Color> + for<'b>Namespace<'b, Color>
{ {
use crate::term::*;
// See `tengri::eval_view` // See `tengri::eval_view`
let head = expr.head()?; let head = expr.head()?;
let mut frags = head.src()?.unwrap_or_default().split("/"); let mut frags = head.src()?.unwrap_or_default().split("/");

1
src/lib.rs
View file

@ -26,7 +26,6 @@ pub(crate) use ::{
std::ops::{Add, Sub, Mul, Div}, std::ops::{Add, Sub, Mul, Div},
std::sync::{Arc, RwLock}, std::sync::{Arc, RwLock},
std::sync::atomic::{AtomicBool, AtomicUsize, Ordering::*}, std::sync::atomic::{AtomicBool, AtomicUsize, Ordering::*},
std::error::Error,
std::marker::PhantomData std::marker::PhantomData
}; };

350
src/term.rs
View file

@ -1,11 +1,72 @@
use crate::{*, lang::*}; #[macro_export] macro_rules! tui_app {
($Struct:ident { $($fields:tt)* }) => {
#[dizzle::namespace(bool)]
#[dizzle::namespace(u16)]
#[dizzle::namespace(Option<u16>)]
#[dizzle::namespace(Color)]
#[derive(Debug, Default)]
pub struct $Struct { $($fields)* }
tui_main!($Struct { ..Default::default() });
}
}
/// Implement standard [main] entrypoint for TUI apps.
#[macro_export] macro_rules! tui_main {
($state:expr) => {
pub fn main () -> Usually<()> {
Tui::setup_panic();
Tui::run_main(Arc::new(RwLock::new($state)))
}
}
}
/// Enable TUI output for state struct.
#[macro_export] macro_rules! tui_view {
($self:ident: $State:ty $body:block) => {
impl View<Tui> for $State {
fn view (&$self) -> impl Draw<Tui> $body
}
}
}
#[macro_export] macro_rules! tui_ns {
($self:ident: $State:ident, $to:pat, $pat:ident $body:expr) => {
impl Interpret<Tui, Option<XYWH<u16>>> for $State {
fn interpret_word <'a> (&'a $self, $to: &mut Tui, $pat: &'a impl Symbol) -> Drawn<u16> {
$body
}
fn interpret_expr <'a> (&'a self, to: &mut Tui, src: &'a impl Expression) -> Drawn<u16> {
Ok(Some(if let Some(area) = eval_view(self, to, src)? {
area
} else if let Some(area) = eval_view_tui(self, to, src)? {
area
} else {
return Err(format!("App::interpret_expr: unexpected: {src:?}").into())
}))
}
}
};
}
/// Enable TUI keyboard input for main state struct.
#[macro_export] macro_rules! tui_keys {
($self:ident:$State:ty,$input:ident $body:block) => {
impl Apply<TuiEvent, Usually<()>> for $State {
fn apply (&mut $self, $input: &TuiEvent) -> Usually<()> $body
}
};
}
use crate::{*, lang::*};
mod border; pub use self::border::*; mod border; pub use self::border::*;
mod event; pub use self::event::*; mod event; pub use self::event::*;
mod keys; pub use self::keys::*; mod keys; pub use self::keys::*;
mod buffer; pub use self::buffer::*; mod buffer; pub use self::buffer::*;
mod input; pub use self::input::*; mod repeat; pub use self::repeat::*;
mod output; pub use self::output::*; mod scroll; pub use self::scroll::*;
mod colors; pub use self::colors::*;
mod phat; pub use self::phat::*;
mod button; pub use self::button::*;
//use unicode_width::{UnicodeWidthStr, UnicodeWidthChar}; //use unicode_width::{UnicodeWidthStr, UnicodeWidthChar};
//use rand::distributions::uniform::UniformSampler; //use rand::distributions::uniform::UniformSampler;
@ -32,14 +93,6 @@ pub(crate) use ::{
}, },
}; };
/// Terminal output.
pub struct Tui(
/// Ratatui buffer; area is screen size
pub Buffer,
/// Current draw area
pub XYWH<u16>
);
impl Deref for Tui { type Target = Buffer; fn deref (&self) -> &Buffer { &self.0 } } impl Deref for Tui { type Target = Buffer; fn deref (&self) -> &Buffer { &self.0 } }
impl DerefMut for Tui { fn deref_mut (&mut self) -> &mut Buffer { &mut self.0 } } impl DerefMut for Tui { fn deref_mut (&mut self) -> &mut Buffer { &mut self.0 } }
impl AsMut<Buffer> for Tui { fn as_mut (&mut self) -> &mut Buffer { &mut self.0 } } impl AsMut<Buffer> for Tui { fn as_mut (&mut self) -> &mut Buffer { &mut self.0 } }
@ -47,8 +100,86 @@ impl Wide<u16> for Tui { fn w (&self) -> u16 { self.1.2 } }
impl Tall<u16> for Tui { fn h (&self) -> u16 { self.1.3 } } impl Tall<u16> for Tui { fn h (&self) -> u16 { self.1.3 } }
impl HasOrigin for Tui { fn origin (&self) -> Azimuth { Azimuth::NW } } impl HasOrigin for Tui { fn origin (&self) -> Azimuth { Azimuth::NW } }
impl Xy<u16> for Tui { fn x (&self) -> u16 { self.1.0 } fn y (&self) -> u16 { self.1.1 } } impl Xy<u16> for Tui { fn x (&self) -> u16 { self.1.0 } fn y (&self) -> u16 { self.1.1 } }
/// Terminal output.
pub struct Tui(
/// Ratatui buffer; area is screen size
pub Buffer,
/// Current draw area
pub XYWH<u16>
);
impl Tui { impl Tui {
pub fn setup_panic () {
use ::std::panic::{set_hook, PanicHookInfo};
use ::better_panic::{Settings, Verbosity};
let panic = Settings::auto()
.verbosity(Verbosity::Full)
.create_panic_handler();
set_hook(Box::new(move |info: &PanicHookInfo|{
let _ = Tui::teardown(&mut stdout());
panic(info);
}));
}
pub fn run_main <T> (state: Arc<RwLock<T>>) -> Usually<()> where
T: View<Tui> + Apply<TuiEvent, Usually<()>> + Send + Sync + 'static
{
Exit::run(|exit|{
let scan = Duration::from_millis(100);
let frame = Duration::from_millis(10);
let (_input, output) = Tui::io(exit.as_ref(), &state, scan, frame, std::io::stdout())?;
let _ = output.join();
Tui::teardown(&mut stdout())
})
}
/// Spawn the TUI input and output threadsl.
pub fn io <
T: View<Tui> + Apply<TuiEvent, Usually<()>> + Send + Sync + 'static,
W: Write + Send + Sync + 'static,
> (
exited: &Arc<AtomicBool>,
state: &Arc<RwLock<T>>,
poll: Duration,
sleep: Duration,
output: W,
) -> Result<(Task, Task), Box<dyn std::error::Error>> {
Ok((
Tui::input(exited, state, poll)?,
Tui::output(exited, state, sleep, output)?,
))
}
/// Spawn the TUI input thread which reads keys from the terminal.
pub fn input <T: Apply<TuiEvent, Usually<()>> + Send + Sync + 'static> (
exited: &Arc<AtomicBool>, state: &Arc<RwLock<T>>, poll: Duration
) -> Result<Task, std::io::Error> {
let exited = exited.clone();
let state = state.clone();
Task::new_poll(exited.clone(), poll, move |_| {
let event = read().unwrap();
match event {
// Hardcoded exit.
Event::Key(KeyEvent {
modifiers: KeyModifiers::CONTROL,
code: KeyCode::Char('c'),
kind: KeyEventKind::Press,
state: KeyEventState::NONE
}) => { exited.store(true, Relaxed); },
// Handle all other events by the state:
event => {
if let Err(e) = state.write().unwrap().apply(&TuiEvent(event)) {
panic!("{e}")
}
},
}
})
}
pub fn teardown <W: Write> (backend: &mut W) -> Usually<()> {
use ::ratatui::backend::Backend;
stdout().execute(LeaveAlternateScreen)?;
CrosstermBackend::new(backend).show_cursor()?;
disable_raw_mode().map_err(Into::into)
}
pub fn new (width: u16, height: u16) -> Self { pub fn new (width: u16, height: u16) -> Self {
Self(Buffer::empty(Rect { x: 0, y: 0, width, height }), XYWH(0, 0, width, height)) Self(Buffer::empty(Rect { x: 0, y: 0, width, height }), XYWH(0, 0, width, height))
} }
@ -60,16 +191,17 @@ impl Tui {
self.0.reset(); self.0.reset();
} }
} }
pub fn redraw <'b, W: Write> (&'b mut self, back: &mut CrosstermBackend<W>, mut next: &'b mut Self) { pub fn redraw <'b, W: Write> (
&'b mut self,
back: &mut CrosstermBackend<W>,
mut next: &'b mut Self
) {
let updates = self.0.diff(&next.0); let updates = self.0.diff(&next.0);
back.draw(updates.into_iter()).expect("failed to render"); back.draw(updates.into_iter()).expect("failed to render");
Backend::flush(back).expect("failed to flush output new"); Backend::flush(back).expect("failed to flush output new");
std::mem::swap(self, &mut next); std::mem::swap(self, &mut next);
next.0.reset(); next.0.reset();
} }
}
impl Tui {
pub fn update (&mut self, callback: &impl Fn(&mut Cell, u16, u16)) -> XYWH<u16> { pub fn update (&mut self, callback: &impl Fn(&mut Cell, u16, u16)) -> XYWH<u16> {
for row in 0..self.h() { for row in 0..self.h() {
let y = self.y() + row; let y = self.y() + row;
@ -84,13 +216,6 @@ impl Tui {
} }
self.xywh() self.xywh()
} }
pub fn tint_all (&mut self, fg: Color, bg: Color, modifier: Modifier) {
for cell in self.0.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>) { pub fn blit (&mut self, text: &impl AsRef<str>, x: u16, y: u16, style: Option<Style>) {
let text = text.as_ref(); let text = text.as_ref();
let style = style.unwrap_or(Style::default()); let style = style.unwrap_or(Style::default());
@ -98,61 +223,140 @@ impl Tui {
self.0.set_string(x, y, text, style); self.0.set_string(x, y, text, style);
} }
} }
} pub fn tint_all (&mut self, fg: Color, bg: Color, modifier: Modifier) {
for cell in self.0.content.iter_mut() {
/// Implement standard [main] entrypoint for TUI apps. cell.fg = fg;
#[macro_export] macro_rules! tui_main { cell.bg = bg;
($state:expr) => { cell.modifier = modifier;
pub fn main () -> Usually<()> {
tui_setup_panic();
tui_run_main(Arc::new(RwLock::new($state)))
} }
} }
} /// Spawn the TUI output thread which writes colored characters to the terminal.
///
pub fn tui_run_main <T> (state: Arc<RwLock<T>>) -> Usually<()> where /// ```
T: View<Tui> + Apply<TuiEvent, Usually<()>> + Send + Sync + 'static /// let state = std::sync::Arc::new(std::sync::RwLock::new(()));
{ /// let _ = tengri::Exit::run(|exit|{
Exit::run(|exit|{ /// tengri::Tui::output(
let scan = Duration::from_millis(100); /// exit.as_ref(),
let frame = Duration::from_millis(10); /// &state,
let (input, output) = tui_io(exit.as_ref(), &state, scan, frame, std::io::stdout())?; /// std::time::Duration::from_millis(10),
output.join(); /// std::io::stdout()
tui_teardown(&mut stdout()) /// )
}) /// });
} /// ```
pub fn output <
pub fn tui_teardown <W: Write> (backend: &mut W) -> Usually<()> { W: Write + Send + Sync + 'static, T: View<Tui> + Send + Sync + 'static
use ::ratatui::backend::Backend;
stdout().execute(LeaveAlternateScreen)?;
CrosstermBackend::new(backend).show_cursor()?;
disable_raw_mode().map_err(Into::into)
}
pub fn tui_setup_panic () {
use ::std::panic::{set_hook, PanicHookInfo};
use ::better_panic::{Settings, Verbosity};
let panic = Settings::auto()
.verbosity(Verbosity::Full)
.create_panic_handler();
set_hook(Box::new(move |info: &PanicHookInfo|{
let _ = tui_teardown(&mut stdout());
panic(info);
}));
}
/// Spawn the TUI input and output threadsl.
pub fn tui_io <
T: View<Tui> + Apply<TuiEvent, Usually<()>> + Send + Sync + 'static,
W: Write + Send + Sync + 'static,
> ( > (
exited: &Arc<AtomicBool>, exited: &Arc<AtomicBool>,
state: &Arc<RwLock<T>>, state: &Arc<RwLock<T>>,
poll: Duration,
sleep: Duration, sleep: Duration,
output: W, output: W,
) -> Result<(Task, Task), Box<dyn Error>> { ) -> Usually<Task> {
let keyboard = tui_input(exited, state, poll)?; let state = state.clone();
let terminal = tui_output(exited, state, sleep, output)?; stdout().execute(EnterAlternateScreen)?;
Ok((keyboard, terminal)) CrosstermBackend::new(stdout()).hide_cursor()?;
enable_raw_mode()?;
let mut backend = CrosstermBackend::new(output);
let Size { width, height } = backend.size().expect("get size failed");
let mut prev = Tui::new(width, height);
let mut next = Tui::new(width, height);
Ok(Task::new_sleep(exited.clone(), sleep, move |perf| {
let Size { width, height } = backend.size().expect("get size failed");
if let Ok(state) = state.try_read() {
prev.resize(&mut backend, width, height);
state.view().draw(&mut next).expect("draw failed"); // TODO draw error
prev.redraw(&mut backend, &mut next);
}
let timer = format!("{:>3.3}ms", perf.used.load(Relaxed));
prev.set_string(0, 0, &timer, Style::default());
})?)
}
/// Draw TUI content or its error message.
///
/// ```
/// for variant in [
/// Ok(Some("hello")),
/// Ok(None),
/// Err("fail".into()),
/// ] {
/// let _ = tengri::Tui::catcher(variant);
/// }
/// ```
pub fn catcher <T: Draw<Tui>> (result: Usually<T>) -> impl Draw<Tui> {
thunk(move|to: &mut Tui|match result {
Ok(content) => content.draw(to),
Err(e) => {
let err_fg = Color::Rgb(255,224,244);
let err_bg = Color::Rgb(96, 24, 24);
let title = east(bold(true, "upsi daisy. "), "rendering failed.");
let error = east("\"why?\" ", bold(true, format!("{e}")));
fg(err_fg, bg(err_bg, south(title, error))).draw(to)
}
})
}
}
impl Screen for Tui {
type Unit = u16;
/// Render drawable in subarea specified by `area`
fn show (&mut self, content: impl Draw<Self>) -> Perhaps<XYWH<u16>> {
let previous_area = self.1;
Ok(if let Some(area) = content.layout(self.1)? {
self.1 = area;
if let Some(result_area) = content.draw(self)? {
self.1 = previous_area;
Some(result_area)
} else {
None
}
} else {
None
})
}
/// Get current clipping area
fn area (&self) -> XYWH<Self::Unit> {
self.1
}
fn clip <T> (
&mut self,
area: impl Into<Option<XYWH<u16>>>,
draw: impl FnOnce(&mut Self)->T
) -> T {
let prev = self.1;
if let Some(area) = area.into() {
self.1 = area.into();
}
let result = draw(self);
self.1 = prev;
result
}
}
pub const fn fill_char (c: char) -> impl Draw<Tui> {
thunk(move|to: &mut Tui|Ok(Some(to.update(&|cell,_,_|{
cell.set_char(c);
}))))
}
/// Draw contents with modifier applied.
pub const fn modify (on: bool, modifier: Modifier, draw: impl Draw<Tui>) -> impl Draw<Tui> {
thunk(move|to: &mut Tui|{
fill_mod(on, modifier).draw(to)?;
draw.draw(to)
})
}
pub const fn fill_mod (on: bool, modifier: Modifier) -> impl Draw<Tui> {
thunk(move|to: &mut Tui|Ok(Some({
if on {
to.update(&|cell,_,_|cell.modifier.insert(modifier))
} else {
to.update(&|cell,_,_|cell.modifier.remove(modifier))
}
})))
}
/// Draw contents with bold modifier applied.
pub const fn bold (on: bool, draw: impl Draw<Tui>) -> impl Draw<Tui> {
modify(on, Modifier::BOLD, draw)
} }

29
src/term/button.rs Normal file
View file

@ -0,0 +1,29 @@
use crate::*;
/// ```
/// let _ = tengri::button_2("", "", true);
/// let _ = tengri::button_2("", "", false);
/// ```
pub const fn button_2 <'a> (key: impl Draw<Tui>, label: impl Draw<Tui>, hide: bool) -> impl Draw<Tui> {
let c1 = tui_orange();
let c2 = tui_g(0);
let c3 = tui_g(96);
let c4 = tui_g(255);
bold(true, fg_bg(c1, c2, east(fg(c2, east(key, fg(c3, "▐"))), when(!hide, fg_bg(c4, c3, label)))))
}
/// ```
/// let _ = tengri::button_3("", "", "", true);
/// let _ = tengri::button_3("", "", "", false);
/// ```
pub const fn button_3 <'a> (
key: impl Draw<Tui>, label: impl Draw<Tui>, value: impl Draw<Tui>, editing: bool,
) -> impl Draw<Tui> {
bold(true, east(
fg_bg(tui_orange(), tui_g(0),
east(fg(tui_g(0), "▐"), east(key, fg(if editing { tui_g(128) } else { tui_g(96) }, "▐")))),
east(
when(!editing, east(fg_bg(tui_g(255), tui_g(96), label), fg_bg(tui_g(128), tui_g(96), "▐"),)),
east(fg_bg(tui_g(224), tui_g(128), value), fg_bg(tui_g(128), Reset, "▌"), ))))
}

80
src/term/colors.rs Normal file
View file

@ -0,0 +1,80 @@
use crate::*;
use ratatui::prelude::Color;
use dizzle::{Ostensibly, Expression, LanguageError::*};
pub trait ColorDsl<T: Expression + Display>: Sized {
fn new_g (expr: T, try_to_u8: impl Fn(Ostensibly<&str>)->Ostensibly<u8>) -> Ostensibly<Self>;
fn new_rgb (expr: T, try_to_u8: impl Fn(Ostensibly<&str>)->Ostensibly<u8>) -> Ostensibly<Self>;
}
impl<T: Expression + Display> ColorDsl<T> for Color {
fn new_g (expr: T, try_to_u8: impl Fn(Ostensibly<&str>)->Ostensibly<u8>) -> Ostensibly<Self> {
let n = try_to_u8(expr.tail().map_err(Into::into))?.ok_or(Domain("not gray"))?;
Ok(Some(Self::Rgb(n, n, n)))
}
fn new_rgb (expr: T, try_to_u8: impl Fn(Ostensibly<&str>)->Ostensibly<u8>) -> Ostensibly<Self> {
let r = try_to_u8(expr.tail().map_err(Into::into))?.ok_or(Domain("not red"))?;
let g = try_to_u8(expr.tail().map_err(Into::into).tail().head())?.ok_or(Domain("not green"))?;
let b = try_to_u8(expr.tail().map_err(Into::into).tail().tail().head())?.ok_or(Domain("not blue"))?;
Ok(Some(Color::Rgb(r, g, b)))
}
}
/// Apply foreground color.
pub const fn fg (fg: Color, draw: impl Draw<Tui>) -> impl Draw<Tui> {
thunk(move|to: &mut Tui|{
to.update(&|cell,_,_|{ cell.set_fg(fg); });
draw.draw(to)
})
}
/// Apply background color.
pub const fn bg (bg: Color, draw: impl Draw<Tui>) -> impl Draw<Tui> {
thunk(move|to: &mut Tui|{
to.update(&|cell,_,_|{ cell.set_bg(bg); });
draw.draw(to)
})
}
pub const fn fg_bg (fg: Color, bg: Color, draw: impl Draw<Tui>) -> impl Draw<Tui> {
thunk(move|to: &mut Tui|{
to.update(&|cell,_,_|{ cell.set_fg(fg); cell.set_bg(bg); });
draw.draw(to)
})
}
pub const fn fill_ul (color: Option<Color>) -> impl Draw<Tui> {
thunk(move|to: &mut Tui|Ok(Some(if let Some(color) = color {
to.update(&|cell,_,_|{
cell.modifier.insert(Modifier::UNDERLINED);
cell.underline_color = color;
})
} else {
to.update(&|cell,_,_|{
cell.modifier.remove(Modifier::UNDERLINED);
cell.underline_color = Reset;
})
})))
}
pub const fn tui_color_bg () -> Color { Color::Rgb(28, 35, 25) }
pub const fn tui_bg0 () -> Color { Color::Rgb(20, 20, 20) }
pub const fn tui_bo1 () -> Color { Color::Rgb(100, 110, 40) }
pub const fn tui_bo2 () -> Color { Color::Rgb(70, 80, 50) }
pub const fn tui_border_bg () -> Color { Color::Rgb(40, 50, 30) }
pub const fn tui_border_fg (f: bool) -> Color { if f { tui_bo1() } else { tui_bo2() } }
pub const fn tui_brown () -> Color { Color::Rgb(128,255,0) }
pub const fn tui_electric () -> Color { Color::Rgb(0,255,128) }
pub const fn tui_g (g: u8) -> Color { Color::Rgb(g, g, g) }
pub const fn tui_green () -> Color { Color::Rgb(0,255,0) }
pub const fn tui_mode_bg () -> Color { Color::Rgb(150, 160, 90) }
pub const fn tui_mode_fg () -> Color { Color::Rgb(255, 255, 255) }
pub const fn tui_null () -> Color { Color::Reset }
pub const fn tui_orange () -> Color { Color::Rgb(255,128,0) }
pub const fn tui_red () -> Color { Color::Rgb(255,0, 0) }
pub const fn tui_separator_fg (_: bool) -> Color { Color::Rgb(0, 0, 0) }
pub const fn tui_status_bar_bg () -> Color { Color::Rgb(28, 35, 25) }
pub const fn tui_ti1 () -> Color { Color::Rgb(150, 160, 90) }
pub const fn tui_ti2 () -> Color { Color::Rgb(120, 130, 100) }
pub const fn tui_title_fg (f: bool) -> Color { if f { tui_ti1() } else { tui_ti2() } }
pub const fn tui_yellow () -> Color { Color::Rgb(255,255,0) }

39
src/term/input.rs
View file

@ -1,39 +0,0 @@
use crate::{*, lang::*};
/// Enable TUI keyboard input for main state struct.
#[macro_export] macro_rules! tui_keys {
(|$self:ident:$State:ty,$input:ident|$body:block) => {
impl Apply<TuiEvent, Usually<()>> for $State {
fn apply (&mut $self, $input: &TuiEvent) -> Usually<()> $body
}
};
}
/// Spawn the TUI input thread which reads keys from the terminal.
pub fn tui_input <T: Apply<TuiEvent, Usually<()>> + Send + Sync + 'static> (
exited: &Arc<AtomicBool>, state: &Arc<RwLock<T>>, poll: Duration
) -> Result<Task, std::io::Error> {
let exited = exited.clone();
let state = state.clone();
Task::new_poll(exited.clone(), poll, move |_| {
let event = read().unwrap();
match event {
// Hardcoded exit.
Event::Key(KeyEvent {
modifiers: KeyModifiers::CONTROL,
code: KeyCode::Char('c'),
kind: KeyEventKind::Press,
state: KeyEventState::NONE
}) => { exited.store(true, Relaxed); },
// Handle all other events by the state:
event => {
if let Err(e) = state.write().unwrap().apply(&TuiEvent(event)) {
panic!("{e}")
}
},
}
})
}

364
src/term/output.rs
View file

@ -1,364 +0,0 @@
use crate::*;
use ratatui::{prelude::{Style, Position, Backend, Color}};
impl Screen for Tui {
type Unit = u16;
/// Render drawable in subarea specified by `area`
fn show (&mut self, content: impl Draw<Self>) -> Perhaps<XYWH<u16>> {
let previous_area = self.1;
Ok(if let Some(area) = content.layout(self.1)? {
self.1 = area;
if let Some(result_area) = content.draw(self)? {
self.1 = previous_area;
Some(result_area)
} else {
None
}
} else {
None
})
}
/// Get current clipping area
fn area (&self) -> XYWH<Self::Unit> {
self.1
}
fn clip <T> (
&mut self,
area: impl Into<Option<XYWH<u16>>>,
draw: impl FnOnce(&mut Self)->T
) -> T {
let prev = self.1;
if let Some(area) = area.into() {
self.1 = area.into();
}
let result = draw(self);
self.1 = prev;
result
}
}
/// Enable TUI output for state struct.
#[macro_export] macro_rules! tui_view {
(|$self:ident: $State:ty|$body:block) => {
impl View<Tui> for $State {
fn view (&$self) -> impl Draw<Tui> $body
}
}
}
/// Spawn the TUI output thread which writes colored characters to the terminal.
///
/// ```
/// let state = std::sync::Arc::new(std::sync::RwLock::new(()));
/// let _ = tengri::Exit::run(|exit|{
/// tengri::tui_output(
/// exit.as_ref(),
/// &state,
/// std::time::Duration::from_millis(10),
/// std::io::stdout()
/// )
/// });
/// ```
pub fn tui_output <
W: Write + Send + Sync + 'static, T: View<Tui> + Send + Sync + 'static
> (
exited: &Arc<AtomicBool>,
state: &Arc<RwLock<T>>,
sleep: Duration,
output: W,
) -> Usually<Task> {
let state = state.clone();
stdout().execute(EnterAlternateScreen)?;
CrosstermBackend::new(stdout()).hide_cursor()?;
enable_raw_mode()?;
let mut backend = CrosstermBackend::new(output);
let Size { width, height } = backend.size().expect("get size failed");
let mut prev = Tui::new(width, height);
let mut next = Tui::new(width, height);
Ok(Task::new_sleep(exited.clone(), sleep, move |perf| {
let Size { width, height } = backend.size().expect("get size failed");
if let Ok(state) = state.try_read() {
prev.resize(&mut backend, width, height);
state.view().draw(&mut next).expect("draw failed"); // TODO draw error
prev.redraw(&mut backend, &mut next);
}
let timer = format!("{:>3.3}ms", perf.used.load(Relaxed));
prev.set_string(0, 0, &timer, Style::default());
})?)
}
pub use self::colors::*; mod colors {
use ratatui::prelude::Color;
pub const fn tui_color_bg () -> Color { Color::Rgb(28, 35, 25) }
pub const fn tui_bg0 () -> Color { Color::Rgb(20, 20, 20) }
pub const fn tui_bo1 () -> Color { Color::Rgb(100, 110, 40) }
pub const fn tui_bo2 () -> Color { Color::Rgb(70, 80, 50) }
pub const fn tui_border_bg () -> Color { Color::Rgb(40, 50, 30) }
pub const fn tui_border_fg (f: bool) -> Color { if f { tui_bo1() } else { tui_bo2() } }
pub const fn tui_brown () -> Color { Color::Rgb(128,255,0) }
pub const fn tui_electric () -> Color { Color::Rgb(0,255,128) }
pub const fn tui_g (g: u8) -> Color { Color::Rgb(g, g, g) }
pub const fn tui_green () -> Color { Color::Rgb(0,255,0) }
pub const fn tui_mode_bg () -> Color { Color::Rgb(150, 160, 90) }
pub const fn tui_mode_fg () -> Color { Color::Rgb(255, 255, 255) }
pub const fn tui_null () -> Color { Color::Reset }
pub const fn tui_orange () -> Color { Color::Rgb(255,128,0) }
pub const fn tui_red () -> Color { Color::Rgb(255,0, 0) }
pub const fn tui_separator_fg (_: bool) -> Color { Color::Rgb(0, 0, 0) }
pub const fn tui_status_bar_bg () -> Color { Color::Rgb(28, 35, 25) }
pub const fn tui_ti1 () -> Color { Color::Rgb(150, 160, 90) }
pub const fn tui_ti2 () -> Color { Color::Rgb(120, 130, 100) }
pub const fn tui_title_fg (f: bool) -> Color { if f { tui_ti1() } else { tui_ti2() } }
pub const fn tui_yellow () -> Color { Color::Rgb(255,255,0) }
}
/// Apply foreground color.
pub const fn fg (fg: Color, draw: impl Draw<Tui>) -> impl Draw<Tui> {
thunk(move|to: &mut Tui|{
to.update(&|cell,_,_|{ cell.set_fg(fg); });
draw.draw(to)
})
}
/// Apply background color.
pub const fn bg (bg: Color, draw: impl Draw<Tui>) -> impl Draw<Tui> {
thunk(move|to: &mut Tui|{
to.update(&|cell,_,_|{ cell.set_bg(bg); });
draw.draw(to)
})
}
pub const fn fg_bg (fg: Color, bg: Color, draw: impl Draw<Tui>) -> impl Draw<Tui> {
thunk(move|to: &mut Tui|{
to.update(&|cell,_,_|{ cell.set_fg(fg); cell.set_bg(bg); });
draw.draw(to)
})
}
pub const fn fill_char (c: char) -> impl Draw<Tui> {
thunk(move|to: &mut Tui|Ok(Some(to.update(&|cell,_,_|{
cell.set_char(c);
}))))
}
/// Draw contents with modifier applied.
pub const fn modify (on: bool, modifier: Modifier, draw: impl Draw<Tui>) -> impl Draw<Tui> {
thunk(move|to: &mut Tui|{
fill_mod(on, modifier).draw(to)?;
draw.draw(to)
})
}
pub const fn fill_mod (on: bool, modifier: Modifier) -> impl Draw<Tui> {
thunk(move|to: &mut Tui|Ok(Some({
if on {
to.update(&|cell,_,_|cell.modifier.insert(modifier))
} else {
to.update(&|cell,_,_|cell.modifier.remove(modifier))
}
})))
}
/// Draw contents with bold modifier applied.
pub const fn bold (on: bool, draw: impl Draw<Tui>) -> impl Draw<Tui> {
modify(on, Modifier::BOLD, draw)
}
pub const fn fill_ul (color: Option<Color>) -> impl Draw<Tui> {
thunk(move|to: &mut Tui|Ok(Some(if let Some(color) = color {
to.update(&|cell,_,_|{
cell.modifier.insert(Modifier::UNDERLINED);
cell.underline_color = color;
})
} else {
to.update(&|cell,_,_|{
cell.modifier.remove(Modifier::UNDERLINED);
cell.underline_color = Reset;
})
})))
}
mod phat {
use super::*;
pub const LO: &'static str = "▄";
pub const HI: &'static str = "▀";
/// A phat line
pub fn lo (fg: Color, bg: Color) -> impl Draw<Tui> {
fg_bg(fg, bg, x_repeat(self::phat::LO)).exact_h(1)
}
/// A phat line
pub fn hi (fg: Color, bg: Color) -> impl Draw<Tui> {
fg_bg(fg, bg, x_repeat(self::phat::HI)).exact_h(1)
}
}
mod scroll {
pub const ICON_DEC_V: &[char] = &['▲'];
pub const ICON_INC_V: &[char] = &['▼'];
pub const ICON_DEC_H: &[char] = &[' ', '🞀', ' '];
pub const ICON_INC_H: &[char] = &[' ', '🞂', ' '];
}
pub const fn x_repeat (c: &str) -> impl Draw<Tui> {
thunk(move|to: &mut Tui|{
let XYWH(x, y, w, _h) = to.xywh();
for x in x..x+w {
if let Some(cell) = to.0.cell_mut(Position::from((x, y))) {
cell.set_symbol(&c);
}
}
Ok(Some(XYWH(x, y, w, 1)))
})
}
pub const fn y_repeat (c: &str) -> impl Draw<Tui> {
thunk(move|to: &mut Tui|{
let XYWH(x, y, _w, h) = to.xywh();
for y in y..y+h {
if let Some(cell) = to.0.cell_mut(Position::from((x, y))) {
cell.set_symbol(&c);
}
}
Ok(Some(XYWH(x, y, 1, h)))
})
}
pub const fn xy_repeat (c: &str) -> impl Draw<Tui> {
thunk(move|to: &mut Tui|{
let XYWH(x, y, w, h) = to.xywh();
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.0.cell_mut(Position::from((x, y))) {
let u = u % a;
cell.set_symbol(&c[u..u+1]);
}
}
}
Ok(Some(XYWH(x, y, w, h)))
})
}
/// ```
/// let _ = tengri::button_2("", "", true);
/// let _ = tengri::button_2("", "", false);
/// ```
pub const fn button_2 <'a> (key: impl Draw<Tui>, label: impl Draw<Tui>, hide: bool) -> impl Draw<Tui> {
let c1 = tui_orange();
let c2 = tui_g(0);
let c3 = tui_g(96);
let c4 = tui_g(255);
bold(true, fg_bg(c1, c2, east(fg(c2, east(key, fg(c3, "▐"))), when(!hide, fg_bg(c4, c3, label)))))
}
/// ```
/// let _ = tengri::button_3("", "", "", true);
/// let _ = tengri::button_3("", "", "", false);
/// ```
pub const fn button_3 <'a> (
key: impl Draw<Tui>, label: impl Draw<Tui>, value: impl Draw<Tui>, editing: bool,
) -> impl Draw<Tui> {
bold(true, east(
fg_bg(tui_orange(), tui_g(0),
east(fg(tui_g(0), "▐"), east(key, fg(if editing { tui_g(128) } else { tui_g(96) }, "▐")))),
east(
when(!editing, east(fg_bg(tui_g(255), tui_g(96), label), fg_bg(tui_g(128), tui_g(96), "▐"),)),
east(fg_bg(tui_g(224), tui_g(128), value), fg_bg(tui_g(128), Reset, "▌"), ))))
}
/// Stackably padded.
///
/// ```
/// /// TODO
/// ```
pub fn phat (w: u16, h: u16, [fg, bg, hi, lo]: [Color;4], draw: impl Draw<Tui>) -> impl Draw<Tui> {
let top = self::phat::lo(bg, hi).exact_h(1);
let low = self::phat::hi(bg, lo).exact_h(1);
let draw = fg_bg(fg, bg, draw);
south(top, north(low, draw)).min_wh(w, h)
}
pub fn x_scroll () -> impl Draw<Tui> {
thunk(|Tui(buf, XYWH(x1, y1, w, h)): &mut Tui|{
let x2 = *x1 + *w;
for (i, x) in (*x1..=x2).enumerate() {
if let Some(cell) = buf.cell_mut(Position::from((x, *y1))) {
if i < (self::scroll::ICON_DEC_H.len()) {
cell.set_fg(Rgb(255, 255, 255));
cell.set_bg(Rgb(0, 0, 0));
cell.set_char(self::scroll::ICON_DEC_H[i as usize]);
} else if i > (*w as usize - self::scroll::ICON_INC_H.len()) {
cell.set_fg(Rgb(255, 255, 255));
cell.set_bg(Rgb(0, 0, 0));
cell.set_char(self::scroll::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('╌');
}
}
}
Ok(Some(XYWH(*x1, *y1, *w, 1)))
})
}
pub fn y_scroll () -> impl Draw<Tui> {
thunk(|Tui(buf, XYWH(x1, y1, w, h)): &mut Tui|{
let y2 = *y1 + *h;
for (i, y) in (*y1..=y2).enumerate() {
if let Some(cell) = buf.cell_mut(Position::from((*x1, y))) {
if (i as usize) < (self::scroll::ICON_DEC_V.len()) {
cell.set_fg(Rgb(255, 255, 255));
cell.set_bg(Rgb(0, 0, 0));
cell.set_char(self::scroll::ICON_DEC_V[i as usize]);
} else if (i as usize) > (*h as usize - self::scroll::ICON_INC_V.len()) {
cell.set_fg(Rgb(255, 255, 255));
cell.set_bg(Rgb(0, 0, 0));
cell.set_char(self::scroll::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('╎'); // ━
}
}
}
Ok(Some(XYWH(*x1, *y1, 1, *h)))
})
}
/// Draw TUI content or its error message.
///
/// ```
/// for variant in [
/// Ok(Some("hello")),
/// Ok(None),
/// Err("fail".into()),
/// ] {
/// let _ = tengri::catcher(variant);
/// }
/// ```
pub fn catcher <T: Draw<Tui>> (result: Usually<T>) -> impl Draw<Tui> {
thunk(move|to: &mut Tui|match result {
Ok(content) => content.draw(to),
Err(e) => {
let err_fg = Color::Rgb(255,224,244);
let err_bg = Color::Rgb(96, 24, 24);
let title = east(bold(true, "upsi daisy. "), "rendering failed.");
let error = east("\"why?\" ", bold(true, format!("{e}")));
fg(err_fg, bg(err_bg, south(title, error))).draw(to)
}
})
}
impl_draw!(|self: u64, _to: Tui|{ todo!() });
impl_draw!(|self: f64, _to: Tui|{ todo!() });

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use crate::*;
/// Stackably padded.
///
/// ```
/// /// TODO
/// ```
pub fn phat (w: u16, h: u16, [fg, bg, hi, lo]: [Color;4], draw: impl Draw<Tui>) -> impl Draw<Tui> {
let top = phat_lo(bg, hi).exact_h(1);
let low = phat_hi(bg, lo).exact_h(1);
let draw = fg_bg(fg, bg, draw);
south(top, north(low, draw)).min_wh(w, h)
}
use super::*;
pub const LO: &'static str = "▄";
pub const HI: &'static str = "▀";
/// A phat line
fn phat_lo (fg: Color, bg: Color) -> impl Draw<Tui> {
fg_bg(fg, bg, x_repeat(self::phat::LO)).exact_h(1)
}
/// A phat line
fn phat_hi (fg: Color, bg: Color) -> impl Draw<Tui> {
fg_bg(fg, bg, x_repeat(self::phat::HI)).exact_h(1)
}

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use crate::*;
use ratatui::{prelude::{Style, Position, Backend, Color}};
pub const fn x_repeat (c: &str) -> impl Draw<Tui> {
thunk(move|to: &mut Tui|{
let XYWH(x, y, w, _h) = to.xywh();
for x in x..x+w {
if let Some(cell) = to.0.cell_mut(Position::from((x, y))) {
cell.set_symbol(&c);
}
}
Ok(Some(XYWH(x, y, w, 1)))
})
}
pub const fn y_repeat (c: &str) -> impl Draw<Tui> {
thunk(move|to: &mut Tui|{
let XYWH(x, y, _w, h) = to.xywh();
for y in y..y+h {
if let Some(cell) = to.0.cell_mut(Position::from((x, y))) {
cell.set_symbol(&c);
}
}
Ok(Some(XYWH(x, y, 1, h)))
})
}
pub const fn xy_repeat (c: &str) -> impl Draw<Tui> {
thunk(move|to: &mut Tui|{
let XYWH(x, y, w, h) = to.xywh();
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.0.cell_mut(Position::from((x, y))) {
let u = u % a;
cell.set_symbol(&c[u..u+1]);
}
}
}
Ok(Some(XYWH(x, y, w, h)))
})
}

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use crate::*;
use ratatui::{prelude::{Style, Position, Backend, Color}};
pub const ICON_DEC_V: &[char] = &['▲'];
pub const ICON_INC_V: &[char] = &['▼'];
pub const ICON_DEC_H: &[char] = &[' ', '🞀', ' '];
pub const ICON_INC_H: &[char] = &[' ', '🞂', ' '];
pub fn x_scroll () -> impl Draw<Tui> {
thunk(|Tui(buf, XYWH(x1, y1, w, h)): &mut Tui|{
let x2 = *x1 + *w;
for (i, x) in (*x1..=x2).enumerate() {
if let Some(cell) = buf.cell_mut(Position::from((x, *y1))) {
if i < (ICON_DEC_H.len()) {
cell.set_fg(Rgb(255, 255, 255));
cell.set_bg(Rgb(0, 0, 0));
cell.set_char(ICON_DEC_H[i as usize]);
} else if i > (*w as usize - ICON_INC_H.len()) {
cell.set_fg(Rgb(255, 255, 255));
cell.set_bg(Rgb(0, 0, 0));
cell.set_char(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('╌');
}
}
}
Ok(Some(XYWH(*x1, *y1, *w, 1)))
})
}
pub fn y_scroll () -> impl Draw<Tui> {
thunk(|Tui(buf, XYWH(x1, y1, w, h)): &mut Tui|{
let y2 = *y1 + *h;
for (i, y) in (*y1..=y2).enumerate() {
if let Some(cell) = buf.cell_mut(Position::from((*x1, y))) {
if (i as usize) < (ICON_DEC_V.len()) {
cell.set_fg(Rgb(255, 255, 255));
cell.set_bg(Rgb(0, 0, 0));
cell.set_char(ICON_DEC_V[i as usize]);
} else if (i as usize) > (*h as usize - ICON_INC_V.len()) {
cell.set_fg(Rgb(255, 255, 255));
cell.set_bg(Rgb(0, 0, 0));
cell.set_char(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('╎'); // ━
}
}
}
Ok(Some(XYWH(*x1, *y1, 1, *h)))
})
}