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4 commits

Author SHA1 Message Date
same mf who else
cf57f44933 stub fn origin and iter
Some checks failed
/ build (push) Has been cancelled
2026-03-21 20:56:42 +02:00
same mf who else
cdc513060d compiles, once again.
now 616 errors downstream...
2026-03-21 20:12:51 +02:00
same mf who else
eb899906f9 13e woo 2026-03-21 18:56:19 +02:00
same mf who else
5d627f7669 all possible insanities simultaneously.
but at least deleting more than i'm writing (hopefully!)
2026-03-21 15:30:25 +02:00
12 changed files with 1028 additions and 986 deletions

2
dizzle

@ -1 +1 @@
Subproject commit 44b2be57ca8d1f69a95f2eb02f4b5474ec77ac0a
Subproject commit 192a1d8257a9f2ad43ebceacb7b5ca348c601471

View file

@ -1439,25 +1439,4 @@ impl<E: Engine, S, C: Command<S>> MenuItem<E, S, C> {
///// TUI helper defs.
//impl Tui {
////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) }
//}

View file

@ -1,6 +1,10 @@
use ::ratatui::style::Color;
use crate::lang::impl_from;
pub(crate) use ::palette::{Okhsl, Srgb, OklabHue, okhsl::UniformOkhsl};
pub(crate) use ::palette::{
Okhsl, Srgb, OklabHue, Mix, okhsl::UniformOkhsl,
convert::{FromColor, FromColorUnclamped}
};
use rand::distributions::uniform::UniformSampler;
pub fn rgb (r: u8, g: u8, b: u8) -> ItemColor { todo!(); }
@ -26,13 +30,17 @@ pub trait HasColor { fn color (&self) -> ItemColor; }
}
}
pub struct ItemColor {}
impl_from!(ItemColor: |rgb: Color| Self { rgb, okhsl: rgb_to_okhsl(rgb) });
impl_from!(ItemColor: |okhsl: Okhsl<f32>| Self { okhsl, rgb: okhsl_to_rgb(okhsl) });
#[derive(Copy, Clone, Debug, Default)]
pub struct ItemColor {
term: Color,
okhsl: Okhsl<f32>
}
impl_from!(ItemColor: |term: Color| Self { term, okhsl: rgb_to_okhsl(term) });
impl_from!(ItemColor: |okhsl: Okhsl<f32>| Self { okhsl, term: okhsl_to_rgb(okhsl) });
// A single color within item theme parameters, in OKHSL and RGB representations.
impl ItemColor {
#[cfg(feature = "tui")] pub const fn from_tui (rgb: Color) -> Self {
Self { rgb, okhsl: Okhsl::new_const(OklabHue::new(0.0), 0.0, 0.0) }
#[cfg(feature = "term")] pub const fn from_tui (term: Color) -> Self {
Self { term, okhsl: Okhsl::new_const(OklabHue::new(0.0), 0.0, 0.0) }
}
pub fn random () -> Self {
let mut rng = ::rand::thread_rng();
@ -55,12 +63,20 @@ impl ItemColor {
}
}
pub struct ItemTheme {}
pub struct ItemTheme {
pub base: ItemColor,
pub light: ItemColor,
pub lighter: ItemColor,
pub lightest: ItemColor,
pub dark: ItemColor,
pub darker: ItemColor,
pub darkest: ItemColor,
}
impl_from!(ItemTheme: |base: ItemColor| Self::from_item_color(base));
impl_from!(ItemTheme: |base: Color| Self::from_tui_color(base));
impl ItemTheme {
#[cfg(feature = "tui")] pub const G: [Self;256] = {
let mut builder = konst::array::ArrayBuilder::new();
#[cfg(feature = "term")] pub const G: [Self;256] = {
let mut builder = dizzle::konst::array::ArrayBuilder::new();
while !builder.is_full() {
let index = builder.len() as u8;
let light = (index as f64 * 1.15) as u8;
@ -88,7 +104,7 @@ impl ItemTheme {
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)
term: Color::Rgb(0, 0, 0)
};
Self {
base: color,
@ -100,7 +116,7 @@ impl ItemTheme {
darkest: color,
}
};
#[cfg(feature = "tui")] pub fn from_tui_color (base: Color) -> Self {
#[cfg(feature = "term")] pub fn from_tui_color (base: Color) -> Self {
Self::from_item_color(ItemColor::from_tui(base))
}
pub fn from_item_color (base: ItemColor) -> Self {

View file

@ -1,13 +1,14 @@
use crate::{*, lang::*, color::*};
use crate::{*, lang::*, color::*, space::*};
/// Drawable that supports dynamic dispatch.
///
///
/// ```
/// use tengri::draw::*;
/// struct TestScreen(bool);
/// impl Screen for TestScreen { type Unit = u16; }
/// struct TestWidget(bool);
/// impl Draw<TestScreen> for TestWidget {
/// fn draw (&self, screen: &mut T) {
/// fn draw (&self, screen: &mut T) -> Usually<XYWH<u16>> {
/// screen.0 |= self.0;
/// }
/// }
@ -16,26 +17,32 @@ use crate::{*, lang::*, color::*};
/// TestWidget(true).draw(&mut screen);
/// TestWidget(false).draw(&mut screen);
/// ```
pub trait Draw<T> {
fn draw (&self, to: &mut T);
pub trait Draw<T: Screen> {
fn draw (self, to: &mut T) -> Usually<XYWH<T::Unit>>;
}
impl<T> Draw<T> for () {
fn draw (&self, __: &mut T) {}
impl<T: Screen> Draw<T> for () {
fn draw (self, __: &mut T) -> Usually<XYWH<T::Unit>> {
Ok(Default::default())
}
}
impl<T, F: Fn(&mut T)> Draw<T> for F {
fn draw (&self, to: &mut T) { self(to) }
impl<T: Screen, D: Draw<T>> Draw<T> for Option<D> {
fn draw (self, to: &mut T) -> Usually<XYWH<T::Unit>> {
Ok(self.map(|draw|draw.draw(to)).transpose()?.unwrap_or_default())
}
}
//impl<T, D: Draw<T>> Draw<T> for &D {
//fn draw (&self, to: &mut T) { (*self).draw(to) }
//}
impl<T, D: Draw<T>> Draw<T> for Arc<D> {
fn draw (&self, to: &mut T) { (**self).draw(to) }
/// Because we can't implement [Draw] for `F: FnOnce...` without conflicts.
pub struct Thunk<T: Screen, F: FnOnce(&mut T)->Usually<XYWH<T::Unit>>>(
pub F,
std::marker::PhantomData<T>
);
pub const fn thunk <T: Screen, F: FnOnce(&mut T)->Usually<XYWH<T::Unit>>> (draw: F) -> Thunk<T, F> {
Thunk(draw, std::marker::PhantomData)
}
impl<T, D: Draw<T>> Draw<T> for RwLock<D> {
fn draw (&self, to: &mut T) { self.read().unwrap().draw(to) }
}
impl<T, D: Draw<T>> Draw<T> for Option<D> {
fn draw (&self, to: &mut T) { if let Some(draw) = self { draw.draw(to) } }
impl<T: Screen, F: FnOnce(&mut T)->Usually<XYWH<T::Unit>>> Draw<T> for Thunk<T, F> {
fn draw (self, to: &mut T) -> Usually<XYWH<T::Unit>> {
(self.0)(to)
}
}
/// Only render when condition is true.
@ -45,8 +52,8 @@ impl<T, D: Draw<T>> Draw<T> for Option<D> {
/// tengri::when(true, "Yes")
/// # }
/// ```
pub fn when <T> (condition: bool, draw: impl Draw<T>) -> impl Draw<T> {
move|to: &mut T|if condition { draw.draw(to); }
pub const fn when <T: Screen> (condition: bool, draw: impl Draw<T>) -> impl Draw<T> {
thunk(move|to: &mut T|if condition { draw.draw(to) } else { Ok(Default::default()) })
}
/// Render one thing if a condition is true and another false.
@ -56,8 +63,8 @@ pub fn when <T> (condition: bool, draw: impl Draw<T>) -> impl Draw<T> {
/// tengri::either(true, "Yes", "No")
/// # }
/// ```
pub fn either <T> (condition: bool, a: impl Draw<T>, b: impl Draw<T>) -> impl Draw<T> {
move|to: &mut T|if condition { a.draw(to) } else { b.draw(to) }
pub const fn either <T: Screen> (condition: bool, a: impl Draw<T>, b: impl Draw<T>) -> impl Draw<T> {
thunk(move|to: &mut T|if condition { a.draw(to) } else { b.draw(to) })
}
/// Output target.
@ -69,497 +76,25 @@ pub fn either <T> (condition: bool, a: impl Draw<T>, b: impl Draw<T>) -> impl Dr
///
/// impl Screen for TestOut {
/// type Unit = u16;
/// fn area (&self) -> impl TwoD<u16> { self.0 }
/// fn area_mut (&mut self) -> &mut impl TwoD<u16> { &mut self.0 }
/// fn show <T: Draw<Self> + ?Sized> (&mut self, area: impl TwoD<u16>, _: &T) {
/// println!("show: {area:?}");
/// fn place <T: Draw<Self> + ?Sized> (&mut self, area: impl TwoD<u16>, _: &T) {
/// println!("place: {area:?}");
/// ()
/// }
/// }
///
/// impl Draw<Screen> for String {
/// fn draw (&self, to: &mut TestOut) {
/// fn draw (&self, to: &mut TestOut) -> Usually<XYWH<u16>> {
/// to.area_mut().set_w(self.len() as u16);
/// }
/// }
/// ```
pub trait Screen: Area<Self::Unit> + Aligned + Send + Sync + Sized {
pub trait Screen: Space<Self::Unit> + Send + Sync + Sized {
type Unit: Coord;
/// Render drawable in area specified by `area`
fn show <'t, T: Draw<Self> + ?Sized> (&mut self, area: impl Area<Self::Unit>, content: &'t T);
fn clipped_mut (&mut self, w: Option<Self::Unit>, h: Option<Self::Unit>)
-> &mut Self;
fn padded_mut (&mut self, w: Self::Unit, h: Self::Unit)
-> &mut Self;
}
impl<O: Screen> X<O::Unit> for O { fn x (&self) -> O::Unit { self.x() } }
impl<O: Screen> Y<O::Unit> for O { fn y (&self) -> O::Unit { self.y() } }
impl<O: Screen> W<O::Unit> for O { fn w (&self) -> O::Unit { self.w() } }
impl<O: Screen> H<O::Unit> for O { fn h (&self) -> O::Unit { self.h() } }
/// Something that has area in 2D space.
pub trait Area<N: Coord>: W<N> + H<N> {
fn wh (&self) -> WH<N> {
WH(self.w(), self.h())
}
fn clip_w (&self, w: N) -> [N;2] {
[self.w().min(w), self.h()]
}
fn clip_h (&self, h: N) -> [N;2] {
[self.w(), self.h().min(h)]
}
fn at_least (&self, w: N, h: N) -> Usually<&Self> {
if self.w() < w || self.h() < h { return Err(format!("min {w}x{h}").into()) }
Ok(self)
}
fn clip_wh (&self, w: Option<N>, h: Option<N>) -> [N;2] {
let w = w.map(|w|self.w().min(w)).unwrap_or(self.w());
let h = h.map(|h|self.h().min(h)).unwrap_or(self.h());
[w, h]
}
}
/// Something that has length along horizontal axis.
pub trait W<N: Coord> {
fn w (&self) -> N { N::zero() }
fn w_min (&self) -> N { self.w() }
fn w_max (&self) -> N { self.w() }
}
fn w_exact <N: Coord, T: Screen<Unit = N>> (_w: N, _c: impl Draw<T>) -> impl Draw<T> {
move|_to: &mut T|{ todo!() }
}
fn w_fill <N: Coord, T: Screen<Unit = N>> (_c: impl Draw<T>) -> impl Draw<T> {
move|_to: &mut T|{ todo!() }
}
fn w_min <N: Coord, T: Screen<Unit = N>> (w: N, x: impl Draw<T>) -> impl Draw<T> {
min(Some(w), None, x)
}
fn w_max <N: Coord, T> (w: N, x: impl Draw<T>) -> impl Draw<T> {
max(Some(w), None, x)
}
/// Something that has length along vertical axis.
pub trait H<N: Coord> {
fn h (&self) -> N { N::zero() }
fn h_min (&self) -> N { self.h() }
fn h_max (&self) -> N { self.h() }
}
fn h_exact <N: Coord, T: Screen<Unit = N>> (_h: N, _c: impl Draw<T>) -> impl Draw<T> {
move|_to: &mut T|{ todo!() }
}
fn h_fill <N: Coord, T: Screen<Unit = N>> (_c: impl Draw<T>) -> impl Draw<T> {
move|_to: &mut T|{ todo!() }
}
fn h_min <N: Coord, T: Screen<Unit = N>> (h: N, x: impl Draw<T>) -> impl Draw<T> {
min(None, Some(h), x)
}
fn h_max <N: Coord, T> (h: N, x: impl Draw<T>) -> impl Draw<T> {
max(None, Some(h), x)
}
/// Something that has a [Measure] of its rendered size.
pub trait Measured <N: Coord> {}
/// Point along (X, Y).
pub trait Point<N: Coord>: X<N> + Y<N> {
fn xy (&self) -> XY<N> { XY(self.x(), self.y()) }
}
/// Something that has `[0, 0]` at a particular point.
pub trait Anchored { fn anchor (&self) -> Align; }
/// Something that has a bounding box
///
/// ```
/// use tengri::{Bounded, XYWH};
/// let bounded: Bounded<tengri::Tui, _> = Bounded(0, 0 ,0 ,0 ,"");
/// ```
pub trait Bounding <N: Coord>: Point<N> + Area<N> + Anchored {
/// Iterate over every covered X coordinate.
fn iter_x (&self) -> impl Iterator<Item = N> where N: std::iter::Step {
self.x_left()..self.x_right()
}
/// Iterate over every covered Y coordinate.
fn iter_y (&self) -> impl Iterator<Item = N> where N: std::iter::Step {
self.y_top()..self.y_bottom()
}
fn x_left (&self) -> N {
use Align::*;
let w = self.w();
let a = self.anchor();
let d = match a { NW|W|SW => 0.into(), N|X|C|Y|S => w/2.into(), NE|E|SE => w };
self.x().minus(d)
}
fn x_right (&self) -> N {
use Align::*;
let w = self.w();
let a = self.anchor();
let d = match a { NW|W|SW => w, N|X|C|Y|S => w/2.into(), NE|E|SE => 0.into() };
self.x().plus(d)
}
fn y_top (&self) -> N {
use Align::*;
let a = self.anchor();
let h = self.h();
let d = match a { NW|N|NE => 0.into(), W|X|C|Y|E => h/2.into(), SW|S|SE => h };
self.y().minus(d)
}
fn y_bottom (&self) -> N {
use Align::*;
let a = self.anchor();
let h = self.h();
let d = match a { NW|N|NE => h, W|X|C|Y|E => h/2.into(), SW|S|SE => 0.into() };
self.y().plus(d)
}
}
/// A cardinal direction.
///
/// ```
/// let direction = tengri::Direction::Above;
/// ```
#[cfg_attr(test, derive(Arbitrary))]
#[derive(Copy, Clone, PartialEq, Debug)] pub enum Direction {
North, South, East, West, Above, Below
}
/// A numeric type that can be used as coordinate.
///
/// FIXME: Replace with `num` crate?
/// FIXME: Use AsRef/AsMut?
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 zero () -> Self { 0.into() }
fn plus (self, other: Self) -> Self;
/// Saturating subtraction
fn minus (self, other: Self) -> Self { if self >= other { self - other } else { 0.into() } }
fn atomic (self) -> AtomicUsize { AtomicUsize::new(self.into()) }
}
/// Point along horizontal axis.
pub trait X<N: Coord> {
fn x (&self) -> N { N::zero() }
fn push <T> (a: impl Draw<T>) -> impl Draw<T> { a }
fn pull <T> (a: impl Draw<T>) -> impl Draw<T> { a }
}
/// Point along vertical axis.
pub trait Y<N: Coord> {
fn y (&self) -> N { N::zero() }
fn push <T> (a: impl Draw<T>) -> impl Draw<T> { a }
fn pull <T> (a: impl Draw<T>) -> impl Draw<T> { a }
}
//impl<O: Screen, T: Draw<O>> Draw<O> for Bounded<O, T> {
//fn draw (&self, to: &mut O) {
//let area = to.area();
//*to.area_mut() = self.0;
//self.1.draw(to);
//*to.area_mut() = area;
//}
//}
/// A point (X, Y).
///
/// ```
/// let xy = tengri::XY(0u16, 0);
/// ```
#[cfg_attr(test, derive(Arbitrary))]
#[derive(Copy, Clone, Debug, Default, PartialEq)]
pub struct XY<C: Coord>(pub C, pub C);
impl<N: Coord> X<N> for XY<N> { fn x (&self) -> N { self.0 } }
impl<N: Coord> Y<N> for XY<N> { fn y (&self) -> N { self.1 } }
/// A size (Width, Height).
///
/// ```
/// let wh = tengri::WH(0u16, 0);
/// ```
#[cfg_attr(test, derive(Arbitrary))]
#[derive(Copy, Clone, Debug, Default, PartialEq)]
pub struct WH<C: Coord>(pub C, pub C);
impl<N: Coord> W<N> for WH<N> { fn w (&self) -> N { self.0 } }
impl<N: Coord> H<N> for WH<N> { fn h (&self) -> N { self.1 } }
impl<N: Coord> WH<N> {
fn min <T: Screen<Unit = N>> (&self, x: impl Draw<T>) -> impl Draw<T> {
min(Some(self.w()), Some(self.h()), x)
}
fn exact <T: Screen<Unit = N>> (&self, c: impl Draw<T>) -> impl Draw<T> {
move|_to: &mut T|{ todo!() }
}
fn fill <T: Screen<Unit = N>> (c: impl Draw<T>) -> impl Draw<T> {
move|_to: &mut T|{ todo!() }
}
}
/// Point with size.
///
/// ```
/// let xywh = tengri::XYWH(0u16, 0, 0, 0);
/// assert_eq!(tengri::XYWH(10u16, 10, 20, 20).center(), tengri::XY(20, 20));
/// ```
///
/// * [ ] TODO: anchor field (determines at which corner/side is X0 Y0)
///
#[cfg_attr(test, derive(Arbitrary))]
#[derive(Copy, Clone, Debug, Default, PartialEq)] pub struct XYWH<C: Coord>(
pub C, pub C, pub C, pub C
);
impl<N: Coord> X<N> for XYWH<N> { fn x (&self) -> N { self.0 } }
impl<N: Coord> Y<N> for XYWH<N> { fn y (&self) -> N { self.1 } }
impl<N: Coord> W<N> for XYWH<N> { fn w (&self) -> N { self.0 } }
impl<N: Coord> H<N> for XYWH<N> { fn h (&self) -> N { self.1 } }
impl<N: Coord> XYWH<N> {
pub fn zero () -> Self {
Self(0.into(), 0.into(), 0.into(), 0.into())
}
pub fn clipped_w (&self, w: N) -> XYWH<N> {
Self(self.x(), self.y(), self.w().min(w), self.h())
}
pub fn clipped_h (&self, h: N) -> XYWH<N> {
Self(self.x(), self.y(), self.w(), self.h().min(h))
}
pub fn clipped (&self, wh: WH<N>) -> XYWH<N> {
Self(self.x(), self.y(), wh.w(), wh.h())
}
pub fn center (&self) -> XY<N> {
XY(self.x().plus(self.w()/2.into()), self.y().plus(self.h()/2.into()))
}
pub fn centered (&self) -> XY<N> {
let Self(x, y, w, h) = *self;
XY(x.minus(w/2.into()), y.minus(h/2.into()))
}
pub fn centered_x (&self, n: N) -> XYWH<N> {
let Self(x, y, w, h) = *self;
XYWH((x.plus(w / 2.into())).minus(n / 2.into()), y.plus(h / 2.into()), n, 1.into())
}
pub fn centered_y (&self, n: N) -> XYWH<N> {
let Self(x, y, w, h) = *self;
XYWH(x.plus(w / 2.into()), (y.plus(h / 2.into())).minus(n / 2.into()), 1.into(), n)
}
pub fn centered_xy (&self, [n, m]: [N;2]) -> XYWH<N> {
let Self(x, y, w, h) = *self;
XYWH((x.plus(w / 2.into())).minus(n / 2.into()), (y.plus(h / 2.into())).minus(m / 2.into()), n, m)
}
}
/// Set maximum width and/or height of drawing area.
pub fn clip <T: Screen<Unit = N>, N: Coord> (w: Option<N>, h: Option<N>, draw: impl Draw<T>) -> impl Draw<T> {
move|to: &mut T|draw.draw(to.clipped_mut(w, h))
}
/// Shrink drawing area symmetrically.
pub fn pad <T: Screen<Unit = N>, N: Coord> (w: N, h: N, draw: impl Draw<T>) -> impl Draw<T> {
move|to: &mut T|draw.draw(to.padded_mut(w, h))
}
pub fn pad_x <T: Screen<Unit = N>, N: Coord> (w: N, draw: impl Draw<T>) -> impl Draw<T> {
pad(w, N::zero(), draw)
}
pub fn pad_y <T: Screen<Unit = N>, N: Coord> (h: N, draw: impl Draw<T>) -> impl Draw<T> {
pad(N::zero(), h, draw)
}
pub fn pad_xy <T: Screen<Unit = N>, N: Coord> (p: N, draw: impl Draw<T>) -> impl Draw<T> {
pad(p, p, draw)
}
/// 9th of area to place.
///
/// ```
/// let alignment = tengri::Align::C;
/// use ::tengri::*;
/// let area = XYWH(10u16, 10, 20, 20);
/// fn test (area: XYWH<u16>, item: &impl Draw<Tui>, expected: [u16;4]) {
/// //assert_eq!(Lay::layout(item, area), expected);
/// //assert_eq!(Draw::layout(item, area), expected);
/// };
///
/// let four = exact_xy(4, 4, "foo");
/// test(area, &Align::nw(four()), [10, 10, 4, 4]);
/// test(area, &Align::n(four()), [18, 10, 4, 4]);
/// test(area, &Align::ne(four()), [26, 10, 4, 4]);
/// test(area, &Align::e(four()), [26, 18, 4, 4]);
/// test(area, &Align::se(four()), [26, 26, 4, 4]);
/// test(area, &Align::s(four()), [18, 26, 4, 4]);
/// test(area, &Align::sw(four()), [10, 26, 4, 4]);
/// test(area, &Align::w(four()), [10, 18, 4, 4]);
///
/// let two_by_four = exact_xy(4, 2, "foo");
/// test(area, &Align::nw(two_by_four()), [10, 10, 4, 2]);
/// test(area, &Align::n(two_by_four()), [18, 10, 4, 2]);
/// test(area, &Align::ne(two_by_four()), [26, 10, 4, 2]);
/// test(area, &Align::e(two_by_four()), [26, 19, 4, 2]);
/// test(area, &Align::se(two_by_four()), [26, 28, 4, 2]);
/// test(area, &Align::s(two_by_four()), [18, 28, 4, 2]);
/// test(area, &Align::sw(two_by_four()), [10, 28, 4, 2]);
/// test(area, &Align::w(two_by_four()), [10, 19, 4, 2]);
/// pub struct Align<T>(pub Align, pub T);
/// ```
#[cfg_attr(test, derive(Arbitrary))]
#[derive(Debug, Copy, Clone, Default)] pub enum Align {
#[default] C, X, Y, NW, N, NE, E, SE, S, SW, W
}
pub trait Aligned {
fn aligned (&mut self, align: Align) -> &mut Self;
}
/// Set 0, 0 of drawing subarea.
pub fn align <T: Aligned> (alignment: Align, draw: impl Draw<T>) -> impl Draw<T> {
move|to: &mut T|draw.draw(to.aligned(alignment))
}
impl Align {
pub fn n <T: Aligned> (x: impl Draw<T>) -> impl Draw<T> { align(Align::N, x) }
pub fn s <T: Aligned> (x: impl Draw<T>) -> impl Draw<T> { align(Align::S, x) }
pub fn e <T: Aligned> (x: impl Draw<T>) -> impl Draw<T> { align(Align::E, x) }
pub fn w <T: Aligned> (x: impl Draw<T>) -> impl Draw<T> { align(Align::W, x) }
pub fn nw <T: Aligned> (x: impl Draw<T>) -> impl Draw<T> { align(Align::NW, x) }
pub fn ne <T: Aligned> (x: impl Draw<T>) -> impl Draw<T> { align(Align::NE, x) }
pub fn sw <T: Aligned> (x: impl Draw<T>) -> impl Draw<T> { align(Align::SW, x) }
pub fn se <T: Aligned> (x: impl Draw<T>) -> impl Draw<T> { align(Align::SE, x) }
pub fn c <T: Aligned> (x: impl Draw<T>) -> impl Draw<T> { align(Align::C, x) }
}
/// Only draw content if area is above a certain size.
///
/// ```
/// let minimum = tengri::min_wh(3, 5, "Hello"); // 5x5
/// ```
pub fn min <T, N: Coord> (w: Option<N>, h: Option<N>, draw: impl Draw<T>) -> impl Draw<T> {
move|to: &mut T| { todo!() }//draw.draw(to.min(w, h))
}
/// Set the maximum width and/or height of the content.
///
/// ```
/// let maximum = tengri::max_wh(3, 5, "Hello"); // 3x1
/// ```
pub fn max <T, N: Coord> (w: Option<N>, h: Option<N>, draw: impl Draw<T>) -> impl Draw<T> {
move|to: &mut T| { todo!() }// { todo!() }//draw.draw(to.max(w, h))
}
// pub fn displace ...
pub fn iter <T, U: Draw<T>, F: Fn(U)->dyn Draw<T>> (
_items: impl Iterator<Item = U>, _cb: F
) -> impl Draw<T> {
move|_to: &mut T|{ todo!() }
}
/// Split screen between two items, or layer them atop each other.
///
/// ```
/// use tengri::Direction::*;
/// let _ = tengri::draw::bsp(Above, (), ());
/// let _ = tengri::draw::bsp(Below, (), ());
/// let _ = tengri::draw::bsp(North, (), ());
/// let _ = tengri::draw::bsp(South, (), ());
/// let _ = tengri::draw::bsp(East, (), ());
/// let _ = tengri::draw::bsp(West, (), ());
/// ```
pub fn bsp <T> (_dir: Direction, a: impl Draw<T>, b: impl Draw<T>) -> impl Draw<T> {
move|_to: &mut T|{ todo!() }
}
pub fn bsp_n <T> (a: impl Draw<T>, b: impl Draw<T>) -> impl Draw<T> {
bsp(Direction::North, a, b)
}
pub fn bsp_s <T> (a: impl Draw<T>, b: impl Draw<T>) -> impl Draw<T> {
bsp(Direction::South, a, b)
}
pub fn bsp_e <T> (a: impl Draw<T>, b: impl Draw<T>) -> impl Draw<T> {
bsp(Direction::East, a, b)
}
pub fn bsp_w <T> (a: impl Draw<T>, b: impl Draw<T>) -> impl Draw<T> {
bsp(Direction::West, a, b)
}
pub fn bsp_a <T> (a: impl Draw<T>, b: impl Draw<T>) -> impl Draw<T> {
bsp(Direction::Above, a, b)
}
pub fn bsp_b <T> (a: impl Draw<T>, b: impl Draw<T>) -> impl Draw<T> {
bsp(Direction::Below, a, b)
}
/// 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 = "lang")] #[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 $layers { layer(self, to) }
}
}
}
}
/// FIXME: This is generic: should be called `eval` and be part of [dizzle].
#[cfg(feature = "lang")] #[macro_export] macro_rules! view {
($State:ident: $Output:ident: $namespaces:expr) => {
impl Understand<$Output, ()> for $State {
fn understand_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!("{}::<{}, ()>::understand_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
}});
/// Memoize a rendering.
///
/// ```
/// let _ = tengri::Memo::new((), ());
/// ```
#[derive(Debug, Default)] pub struct Memo<T, U> {
pub value: T,
pub view: Arc<RwLock<U>>
}
impl<T: PartialEq, U> Memo<T, U> {
pub fn new (value: T, view: U) -> Self {
Self { value, view: Arc::new(view.into()) }
}
pub fn update <R> (&mut self, newval: T, draw: impl Fn(&mut U, &T, &T)->R) -> Option<R> {
if newval != self.value {
let result = draw(&mut*self.view.write().unwrap(), &newval, &self.value);
self.value = newval;
return Some(result);
}
None
fn place <'t, T: Draw<Self> + ?Sized> (
&mut self, content: &'t T, area: Option<XYWH<Self::Unit>>
) {
let area = area.unwrap_or_else(||self.xywh());
unimplemented!()
}
}

110
src/keys.rs Normal file
View file

@ -0,0 +1,110 @@
use crate::play::Thread;
use ::std::sync::{Arc, RwLock, atomic::{AtomicBool, Ordering::*}};
use ::std::time::Duration;
use ::dizzle::{Usually, Do, impl_from};
use ::crossterm::event::{
read, Event, KeyEvent, KeyCode, KeyModifiers, KeyEventKind, KeyEventState
};
/// Spawn the TUI input thread which reads keys from the terminal.
pub fn tui_input <T: Do<TuiEvent, Usually<T>> + Send + Sync + 'static> (
exited: &Arc<AtomicBool>, state: &Arc<RwLock<T>>, poll: Duration
) -> Result<Thread, std::io::Error> {
let exited = exited.clone();
let state = state.clone();
Thread::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}")
}
},
}
})
}
/// TUI input loop event.
#[derive(Debug, Clone, Eq, PartialEq, PartialOrd)]
pub struct TuiEvent(pub Event);
impl_from!(TuiEvent: |e: Event| TuiEvent(e));
impl_from!(TuiEvent: |c: char| TuiEvent(Event::Key(KeyEvent::new(KeyCode::Char(c), KeyModifiers::NONE))));
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
}
}
/// TUI key spec.
#[derive(Debug, Clone, Eq, PartialEq, PartialOrd)]
pub struct TuiKey(pub Option<KeyCode>, pub KeyModifiers);
impl TuiKey {
const SPLIT: char = '/';
pub fn from_crossterm (event: KeyEvent) -> Self {
Self(Some(event.code), event.modifiers)
}
pub fn to_crossterm (&self) -> Option<Event> {
self.0.map(|code|Event::Key(KeyEvent {
code,
modifiers: self.1,
kind: KeyEventKind::Press,
state: KeyEventState::NONE,
}))
}
pub fn named (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,
})
}
}

View file

@ -1,5 +1,5 @@
#[cfg(feature = "tui")] impl TuiKey {
#[cfg(feature = "term")]
impl crate::term::TuiKey {
#[cfg(feature = "lang")]
pub fn from_dsl (dsl: impl Language) -> Usually<Self> {
if let Some(word) = dsl.word()? {
@ -37,5 +37,4 @@
return Err(format!("TuiKey: unspecified").into())
}
}
}

View file

@ -33,9 +33,11 @@ pub(crate) use ::{
#[cfg(feature = "sing")] pub use ::jack::{*, contrib::{*, ClosureProcessHandler}};
#[cfg(feature = "draw")] pub mod draw;
#[cfg(feature = "draw")] pub mod space;
#[cfg(feature = "draw")] pub mod color;
#[cfg(feature = "text")] pub mod text;
#[cfg(feature = "term")] pub mod term;
#[cfg(feature = "term")] pub mod keys;
#[cfg(feature = "term")] pub extern crate ratatui;
#[cfg(feature = "term")] pub extern crate crossterm;

View file

@ -1,6 +1,6 @@
use crate::{*, time::*, lang::*};
use ::std::{thread::JoinHandle, time::Duration};
#[cfg(feature = "tui")] use ::crossterm::event::poll;
#[cfg(feature = "term")] use ::crossterm::event::poll;
#[derive(Clone)] pub struct Exit(Arc<AtomicBool>);
@ -21,8 +21,8 @@ impl Exit {
impl Thread {
/// Spawn a TUI thread that runs `callt least one, then repeats until `exit`.
pub fn new <F> (exit: Arc<AtomicBool>, call: F) -> Result<Self, std::io::Error>
where F: Fn(&PerfModel)->() + Send + Sync + 'static
pub fn new <F> (exit: Arc<AtomicBool>, mut call: F) -> Result<Self, std::io::Error>
where F: FnMut(&PerfModel)->() + Send + Sync + 'static
{
let perf = Arc::new(PerfModel::default());
Ok(Self {
@ -30,7 +30,7 @@ impl Thread {
perf: perf.clone(),
join: std::thread::Builder::new().name("tengri tui output".into()).spawn(move || {
while !exit.fetch_and(true, Relaxed) {
let _ = perf.cycle(&call);
let _ = perf.cycle(&mut call);
}
})?.into()
})
@ -39,19 +39,19 @@ impl Thread {
/// Spawn a thread that runs `call` least one, then repeats
/// until `exit`, sleeping for `time` msec after every iteration.
pub fn new_sleep <F> (
exit: Arc<AtomicBool>, time: Duration, call: F
exit: Arc<AtomicBool>, time: Duration, mut call: F
) -> Result<Self, std::io::Error>
where F: Fn(&PerfModel)->() + Send + Sync + 'static
where F: FnMut(&PerfModel)->() + Send + Sync + 'static
{
Self::new(exit, move |perf| { let _ = call(perf); std::thread::sleep(time); })
}
/// Spawn a thread that uses [crossterm::event::poll]
/// to run `call` every `time` msec.
#[cfg(feature = "tui")]pub fn new_poll <F> (
exit: Arc<AtomicBool>, time: Duration, call: F
#[cfg(feature = "term")] pub fn new_poll <F> (
exit: Arc<AtomicBool>, time: Duration, mut call: F
) -> Result<Self, std::io::Error>
where F: Fn(&PerfModel)->() + Send + Sync + 'static
where F: FnMut(&PerfModel)->() + Send + Sync + 'static
{
Self::new(exit, move |perf| { if poll(time).is_ok() { let _ = call(perf); } })
}

482
src/space.rs Normal file
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@ -0,0 +1,482 @@
use crate::{*, draw::*};
/// Point with size.
///
/// ```
/// let xywh = tengri::XYWH(0u16, 0, 0, 0);
/// assert_eq!(tengri::XYWH(10u16, 10, 20, 20).center(), tengri::XY(20, 20));
/// ```
///
/// * [ ] TODO: origin field (determines at which corner/side is X0 Y0)
///
#[cfg_attr(test, derive(Arbitrary))] #[derive(Copy, Clone, Debug, Default, PartialEq)]
pub struct XYWH<N: Coord>(pub N, pub N, pub N, pub N);
impl<N: Coord> X<N> for XYWH<N> { fn x (&self) -> N { self.0 } fn w (&self) -> N { self.2 } }
impl<N: Coord> Y<N> for XYWH<N> { fn y (&self) -> N { self.0 } fn h (&self) -> N { self.2 } }
impl<N: Coord> XYWH<N> {
pub fn zero () -> Self {
Self(0.into(), 0.into(), 0.into(), 0.into())
}
pub fn center (&self) -> (N, N) {
let Self(x, y, w, h) = *self;
(x.plus(w/2.into()), y.plus(h/2.into()))
}
pub fn centered (&self) -> (N, N) {
let Self(x, y, w, h) = *self;
(x.minus(w/2.into()), y.minus(h/2.into()))
}
pub fn centered_x (&self, n: N) -> Self {
let Self(x, y, w, h) = *self;
let x_center = (x.plus(w / 2.into())).minus(n / 2.into());
let y_center = y.plus(h / 2.into());
XYWH(x_center, y_center, n, 1.into())
}
pub fn centered_y (&self, n: N) -> Self {
let Self(x, y, w, h) = *self;
let x_center = x.plus(w / 2.into());
let y_corner = (y.plus(h / 2.into())).minus(n / 2.into());
XYWH(x_center, y_corner, 1.into(), n)
}
pub fn centered_xy (&self, [n, m]: [N;2]) -> Self {
let Self(x, y, w, h) = *self;
let x_center = (x.plus(w / 2.into())).minus(n / 2.into());
let y_corner = (y.plus(h / 2.into())).minus(m / 2.into());
XYWH(x_center, y_corner, n, m)
}
pub fn split_half (&self, direction: &Split) -> (Self, Self) {
use Split::*;
let XYWH(x, y, w, h) = self.xywh();
match direction {
South => (XYWH(x, y, w, h - h / 2.into()), XYWH(x, y + h / 2.into(), w, h / 2.into())),
East => (XYWH(x, y, w - w / 2.into(), h), XYWH(x + w / 2.into(), y, w / 2.into(), h)),
North => (XYWH(x, y + h / 2.into(), w, h - h / 2.into()), XYWH(x, y, w, h / 2.into())),
West => (XYWH(x + w / 2.into(), y, w - w / 2.into(), h), XYWH(x, y, w / 2.into(), h)),
Above | Below => (XYWH(x, y, w, h), XYWH(x, y, w, h))
}
}
}
/// Something that has `[0, 0]` at a particular point.
pub trait HasOrigin { fn origin (&self) -> Origin;
}
impl<T: AsRef<Origin>> HasOrigin for T { fn origin (&self) -> Origin { *self.as_ref() } }
pub struct Anchor<T>(Origin, T);
impl<T> AsRef<Origin> for Anchor<T> {
fn as_ref (&self) -> &Origin {
&self.0
}
}
impl<T: Screen, U: Draw<T>> Draw<T> for Anchor<U> {
fn draw (self, to: &mut T) -> Usually<XYWH<T::Unit>> {
todo!()
}
}
pub const fn origin_nw <T: Screen> (a: impl Draw<T>) -> impl Draw<T> {
Anchor(Origin::NW, a)
}
pub const fn origin_n <T: Screen> (a: impl Draw<T>) -> impl Draw<T> {
Anchor(Origin::N, a)
}
pub const fn origin_ne <T: Screen> (a: impl Draw<T>) -> impl Draw<T> {
Anchor(Origin::NE, a)
}
pub const fn origin_w <T: Screen> (a: impl Draw<T>) -> impl Draw<T> {
Anchor(Origin::W, a)
}
pub const fn origin_c <T: Screen> (a: impl Draw<T>) -> impl Draw<T> {
Anchor(Origin::C, a)
}
pub const fn origin_e <T: Screen> (a: impl Draw<T>) -> impl Draw<T> {
Anchor(Origin::E, a)
}
pub const fn origin_sw <T: Screen> (a: impl Draw<T>) -> impl Draw<T> {
Anchor(Origin::SW, a)
}
pub const fn origin_s <T: Screen> (a: impl Draw<T>) -> impl Draw<T> {
Anchor(Origin::S, a)
}
pub const fn origin_se <T: Screen> (a: impl Draw<T>) -> impl Draw<T> {
Anchor(Origin::SE, a)
}
/// Where is [0, 0] located?
///
/// ```
/// use tengri::draw::Origin;
/// let _ = Origin::NW.align(())
/// ```
#[cfg_attr(test, derive(Arbitrary))]
#[derive(Debug, Copy, Clone, Default)] pub enum Origin {
#[default] C, X, Y, NW, N, NE, E, SE, S, SW, W
}
impl Origin {
pub fn align <T: Screen> (&self, a: impl Draw<T>) -> impl Draw<T> {
align(*self, a)
}
}
/// ```
/// use tengri::draw::{align, Origin::*};
/// let _ = align(NW, "test");
/// let _ = align(SE, "test");
/// ```
pub fn align <T: Screen> (origin: Origin, a: impl Draw<T>) -> impl Draw<T> {
thunk(move|to: &mut T| { todo!() })
}
/// A numeric type that can be used as coordinate.
///
/// FIXME: Replace with `num` crate?
/// FIXME: Use AsRef/AsMut?
///
/// ```
/// use tengri::draw::Coord;
/// let a: u16 = Coord::zero();
/// let b: u16 = a.plus(1);
/// let c: u16 = a.minus(2);
/// let d = a.atomic();
/// ```
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>
+ std::iter::Step
{
/// Zero in own type.
fn zero () -> Self { 0.into() }
/// Addition.
fn plus (self, other: Self) -> Self;
/// Saturating subtraction.
fn minus (self, other: Self) -> Self { if self >= other { self - other } else { 0.into() } }
/// Convert to [AtomicUsize].
fn atomic (self) -> AtomicUsize { AtomicUsize::new(self.into()) }
}
/// A cardinal direction.
#[cfg_attr(test, derive(Arbitrary))]
#[derive(Copy, Clone, PartialEq, Debug, Default)] pub enum Split {
North, South, East, West, Above, #[default] Below
}
pub const fn east <T: Screen> (a: impl Draw<T>, b: impl Draw<T>) -> impl Draw<T> {
Split::East.half(a, b)
}
pub const fn north <T: Screen> (a: impl Draw<T>, b: impl Draw<T>) -> impl Draw<T> {
Split::North.half(a, b)
}
pub const fn west <T: Screen> (a: impl Draw<T>, b: impl Draw<T>) -> impl Draw<T> {
Split::West.half(a, b)
}
pub const fn south <T: Screen> (a: impl Draw<T>, b: impl Draw<T>) -> impl Draw<T> {
Split::South.half(a, b)
}
pub const fn above <T: Screen> (a: impl Draw<T>, b: impl Draw<T>) -> impl Draw<T> {
Split::Above.half(a, b)
}
pub const fn below <T: Screen> (a: impl Draw<T>, b: impl Draw<T>) -> impl Draw<T> {
Split::Below.half(a, b)
}
impl Split {
/// ```
/// use tengri::draw::Split::*;
/// let _ = Above.bsp((), ());
/// let _ = Below.bsp((), ());
/// let _ = North.bsp((), ());
/// let _ = South.bsp((), ());
/// let _ = East.bsp((), ());
/// let _ = West.bsp((), ());
/// ```
pub const fn half <T: Screen> (&self, a: impl Draw<T>, b: impl Draw<T>) -> impl Draw<T> {
thunk(move|to: &mut T|{
let (area_a, area_b) = to.xywh().split_half(self);
let (origin_a, origin_b) = self.origins();
let a = origin_a.align(a);
let b = origin_b.align(b);
match self {
Self::Below => {
to.place(&b, Some(area_b));
to.place(&a, Some(area_b));
},
_ => {
to.place(&a, Some(area_a));
to.place(&b, Some(area_a));
}
}
Ok(to.xywh()) // FIXME: compute and return actually used area
})
}
/// Newly split areas begin at the center of the split
/// to maintain centeredness in the user's field of view.
///
/// Use [align] to override that and always start
/// at the top, bottom, etc.
///
/// ```
/// /*
///
/// Split east: Split south:
/// | | | | A |
/// | <-A|B-> | |---------|
/// | | | | B |
///
/// */
/// ```
const fn origins (&self) -> (Origin, Origin) {
use Origin::*;
match self {
Self::South => (S, N),
Self::East => (E, W),
Self::North => (N, S),
Self::West => (W, E),
Self::Above => (C, C),
Self::Below => (C, C),
}
}
}
/// Horizontal axis.
pub trait X<N: Coord> {
fn x (&self) -> N;
fn w (&self) -> N { N::zero() }
fn w_min (&self) -> N { self.w() }
fn w_max (&self) -> N { self.w() }
fn iter_x (&self) -> impl Iterator<Item = N> where Self: HasOrigin {
self.x_west()..self.x_east()
}
fn x_west (&self) -> N where Self: HasOrigin {
use Origin::*;
let w = self.w();
let a = self.origin();
let d = match a { NW|W|SW => 0.into(), N|X|C|Y|S => w/2.into(), NE|E|SE => w };
self.x().minus(d)
}
fn x_east (&self) -> N where Self: HasOrigin {
use Origin::*;
let w = self.w();
let a = self.origin();
let d = match a { NW|W|SW => w, N|X|C|Y|S => w/2.into(), NE|E|SE => 0.into() };
self.x().plus(d)
}
fn x_center (&self) -> N where Self: HasOrigin {
todo!()
}
}
pub const fn x_push <T: Screen> (x: T::Unit, a: impl Draw<T>) -> impl Draw<T> {
a
}
pub const fn x_pull <T: Screen> (x: T::Unit, a: impl Draw<T>) -> impl Draw<T> {
a
}
pub const fn w_max <T: Screen> (w: Option<T::Unit>, a: impl Draw<T>) -> impl Draw<T> {
wh_max(w, None, a)
}
pub const fn w_min <T: Screen> (w: Option<T::Unit>, a: impl Draw<T>) -> impl Draw<T> {
wh_min(w, None, a)
}
pub const fn w_exact <T: Screen> (w: T::Unit, c: impl Draw<T>) -> impl Draw<T> {
wh_exact(Some(w), None, c)
}
/// Shrink drawing area symmetrically.
///
/// ```
/// let padded = tengri::W(3).pad("Hello");
/// ```
pub const fn w_pad <T: Screen> (x: T::Unit, draw: impl Draw<T>) -> impl Draw<T> {
thunk(move|to: &mut T|draw.draw(todo!()))
}
pub trait Y<N: Coord> {
fn y (&self) -> N;
fn h (&self) -> N { N::zero() }
fn h_min (&self) -> N { self.h() }
fn h_max (&self) -> N { self.h() }
fn iter_y (&self) -> impl Iterator<Item = N> where Self: HasOrigin {
self.y_north()..self.y_south()
}
fn y_north (&self) -> N where Self: HasOrigin {
let a = self.origin();
let h = self.h();
use Origin::*;
let d = match a { NW|N|NE => 0.into(), W|X|C|Y|E => h/2.into(), SW|S|SE => h };
self.y().minus(d)
}
fn y_south (&self) -> N where Self: HasOrigin {
let a = self.origin();
let h = self.h();
use Origin::*;
let d = match a { NW|N|NE => h, W|X|C|Y|E => h/2.into(), SW|S|SE => 0.into() };
self.y().plus(d)
}
fn y_center (&self) -> N where Self: HasOrigin {
todo!()
}
}
pub const fn y_push <T: Screen> (x: T::Unit, a: impl Draw<T>) -> impl Draw<T> {
a
}
pub const fn y_pull <T: Screen> (x: T::Unit, a: impl Draw<T>) -> impl Draw<T> {
a
}
pub const fn h_max <T: Screen> (h: Option<T::Unit>, a: impl Draw<T>) -> impl Draw<T> {
wh_max(None, h, a)
}
pub const fn h_min <T: Screen> (h: Option<T::Unit>, a: impl Draw<T>) -> impl Draw<T> {
wh_min(None, h, a)
}
pub const fn h_exact <T: Screen> (h: T::Unit, c: impl Draw<T>) -> impl Draw<T> {
wh_exact(None, Some(h), c)
}
/// Shrink drawing area symmetrically.
///
/// ```
/// let padded = tengri::W::pad(3, "Hello");
/// ```
pub const fn h_pad <T: Screen> (x: T::Unit, draw: impl Draw<T>) -> impl Draw<T> {
thunk(move|to: &mut T|draw.draw(todo!()))
}
pub trait Space<N: Coord>: X<N> + Y<N> {
fn xywh (&self) -> XYWH<N> { XYWH(self.x(), self.y(), self.w(), self.h()) }
// FIXME: factor origin
fn lrtb (&self) -> [N;4] { [self.x(), self.y(), self.x()+self.w(), self.y()+self.h()] }
}
impl<N: Coord, T: X<N> + Y<N>> Space<N> for T {}
pub const fn xy_push <T: Screen> (x: T::Unit, y: T::Unit, a: impl Draw<T>) -> impl Draw<T> {
a
}
pub const fn xy_pull <T: Screen> (x: T::Unit, y: T::Unit, a: impl Draw<T>) -> impl Draw<T> {
a
}
/// Shrink drawing area symmetrically.
///
/// ```
/// let padded = tengri::WH(3, 5).pad("Hello");
/// ```
pub const fn wh_pad <T: Screen> (w: T::Unit, h: T::Unit, draw: impl Draw<T>)
-> impl Draw<T>
{
thunk(move|to: &mut T|draw.draw(todo!()))
}
/// Only draw content if area is above a certain size.
///
/// ```
/// let min = tengri::wh_min(3, 5, "Hello"); // 5x5
/// ```
pub const fn wh_min <T: Screen> (w: Option<T::Unit>, h: Option<T::Unit>, draw: impl Draw<T>)
-> impl Draw<T>
{
thunk(move|to: &mut T|draw.draw(todo!()))
}
/// Set the maximum width and/or height of the content.
///
/// ```
/// let max = tengri::wh_max(Some(3), Some(5), "Hello");
/// ```
pub const fn wh_max <T: Screen> (w: Option<T::Unit>, h: Option<T::Unit>, draw: impl Draw<T>)
-> impl Draw<T>
{
thunk(move|to: &mut T|draw.draw(todo!()))
}
/// Set the maximum width and/or height of the content.
///
/// ```
/// let exact = tengri::wh_exact(Some(3), Some(5), "Hello");
/// ```
pub const fn wh_exact <T: Screen> (w: Option<T::Unit>, h: Option<T::Unit>, draw: impl Draw<T>)
-> impl Draw<T>
{
thunk(move|to: &mut T|draw.draw(todo!()))
}
/// Limit size of drawing area
/// ```
/// let clipped = tengri::wh_clip(Some(3), Some(5), "Hello");
/// ```
pub const fn wh_clip <T: Screen> (
w: Option<T::Unit>, h: Option<T::Unit>, draw: impl Draw<T>
) -> impl Draw<T> {
thunk(move|to: &mut T|draw.draw(todo!()))
}
pub const fn wh_full <T: Screen> (a: impl Draw<T>) -> impl Draw<T> { a }
pub const fn w_full <T: Screen> (a: impl Draw<T>) -> impl Draw<T> { a }
pub const fn h_full <T: Screen> (a: impl Draw<T>) -> impl Draw<T> { a }
#[macro_export] macro_rules! north {
($($tt:tt)*) => { unimplemented!() };
}
#[macro_export] macro_rules! south {
($($tt:tt)*) => { unimplemented!() };
}
#[macro_export] macro_rules! east {
($($tt:tt)*) => { unimplemented!() };
}
#[macro_export] macro_rules! west {
($($tt:tt)*) => { unimplemented!() };
}
#[macro_export] macro_rules! above {
($($tt:tt)*) => { unimplemented!() };
}
#[macro_export] macro_rules! below {
($($tt:tt)*) => { unimplemented!() };
}
/// Iterate over a collection of renderables:
///
/// ```
/// use tengri::draw::{Origin::*, Split::*};
/// let _ = Below.iter([
/// NW.align(W(15).max(W(10).min("Leftbar"))),
/// NE.align(W(12).max(W(10).min("Rightbar"))),
/// Center.align(W(40).max(H(20.max("Center"))))
/// ].iter(), |x|x);
/// ```
pub fn iter <
T: Screen,
V: Fn()->I,
I: Iterator<Item = dyn Draw<T>>,
F: Fn(&dyn Draw<T>)->dyn Draw<T>,
> (_items: V, _cb: F) -> impl Draw<T> {
thunk(move|_to: &mut T|{ todo!() })
}
pub fn iter_north <
T: Screen,
V: Fn()->I,
I: Iterator<Item = dyn Draw<T>>,
F: Fn(&dyn Draw<T>)->dyn Draw<T>,
> (_items: V, _cb: F) -> impl Draw<T> {
thunk(move|_to: &mut T|{ todo!() })
}
pub fn iter_east <
T: Screen,
V: Fn()->I,
I: Iterator<Item = dyn Draw<T>>,
F: Fn(&dyn Draw<T>)->dyn Draw<T>,
> (_items: V, _cb: F) -> impl Draw<T> {
thunk(move|_to: &mut T|{ todo!() })
}
pub fn iter_south <
T: Screen,
V: Fn()->I,
I: Iterator<Item = dyn Draw<T>>,
F: Fn(&dyn Draw<T>)->dyn Draw<T>,
> (_items: V, _cb: F) -> impl Draw<T> {
thunk(move|_to: &mut T|{ todo!() })
}
pub fn iter_west <
T: Screen,
V: Fn()->I,
I: Iterator<Item = dyn Draw<T>>,
F: Fn(&dyn Draw<T>)->dyn Draw<T>,
> (_items: V, _cb: F) -> impl Draw<T> {
thunk(move|_to: &mut T|{ todo!() })
}

View file

@ -1,156 +1,140 @@
use crate::{*, lang::*, play::*, draw::*, color::*, text::*};
use crate::{*, lang::*, play::*, draw::*, space::{*, Split::*}, color::*, text::*};
use unicode_width::{UnicodeWidthStr, UnicodeWidthChar};
use rand::distributions::uniform::UniformSampler;
use ::{
std::{
io::{stdout, Write},
time::Duration
time::Duration,
ops::{Deref, DerefMut},
},
better_panic::{Settings, Verbosity},
ratatui::{
prelude::{Color, Style, Buffer, Position, Backend},
prelude::{Style, Buffer as ScreenBuffer, Position, Backend, Color},
style::{Modifier, Color::*},
backend::{CrosstermBackend, ClearType},
layout::{Size, Rect},
buffer::Cell
buffer::{Buffer, Cell},
},
crossterm::{
ExecutableCommand,
terminal::{EnterAlternateScreen, LeaveAlternateScreen, enable_raw_mode, disable_raw_mode},
event::{poll, read, Event, KeyEvent, KeyCode, KeyModifiers, KeyEventKind, KeyEventState},
}
};
/// Marker trait for structs that may be root of TUI app.
pub trait Tui: Draw<Buffer> + Do<TuiEvent, Perhaps<TuiEvent>> {}
/// `Tui` is automatically implemented.
impl<T: Draw<Buffer> + Do<TuiEvent, Perhaps<TuiEvent>>> Tui for T {}
/// Spawn the TUI input thread which reads keys from the terminal.
pub fn tui_input <T: Act<TuiEvent, T> + Send + Sync + 'static> (
exited: &Arc<AtomicBool>, state: &Arc<RwLock<T>>, poll: Duration
) -> Result<Thread, std::io::Error> {
let exited = exited.clone();
let state = state.clone();
Thread::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:
_ => {
let event = TuiEvent::from_crossterm(event);
if let Err(e) = state.write().unwrap().handle(&event) {
panic!("{e}")
pub struct Tui(pub Buffer, pub XYWH<u16>);
impl Screen for Tui { type Unit = u16; }
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 HasOrigin for Tui { fn origin (&self) -> Origin { Origin::NW } }
impl X<u16> for Tui {
fn x (&self) -> u16 { self.1.0 }
fn w (&self) -> u16 { self.1.2 }
}
impl Y<u16> for Tui {
fn y (&self) -> u16 { self.1.1 }
fn h (&self) -> u16 { self.1.3 }
}
impl Tui {
fn update (&mut self, callback: &impl Fn(&mut Cell, u16, u16)) -> XYWH<u16> {
for row in 0..self.h() {
let y = self.y() + row;
for col in 0..self.w() {
let x = self.x() + col;
if x < self.0.area.width && y < self.0.area.height {
if let Some(cell) = self.0.cell_mut(Position { x, y }) {
callback(cell, col, row);
}
}
}
}
self.xywh()
}
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;
}
}
fn blit (&mut self, text: &impl AsRef<str>, x: u16, y: u16, style: Option<Style>) {
let text = text.as_ref();
let style = style.unwrap_or(Style::default());
if x < self.0.area.width && y < self.0.area.height {
self.0.set_string(x, y, text, style);
}
}
}
/// 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)
})
}
/// TUI input loop event.
#[derive(Debug, Clone, Eq, PartialEq, PartialOrd)]
pub struct TuiEvent(pub Event);
impl_from!(TuiEvent: |e: Event| TuiEvent(e));
impl_from!(TuiEvent: |c: char| TuiEvent(Event::Key(KeyEvent::new(KeyCode::Char(c), KeyModifiers::NONE))));
impl TuiEvent {
#[cfg(feature = "dsl")] pub fn from_dsl (dsl: impl Language) -> Perhaps<Self> {
Ok(TuiKey::from_dsl(dsl)?.to_crossterm().map(Self))
}
/// 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)
})
}
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
}
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)
})
}
/// TUI key spec.
#[derive(Debug, Clone, Eq, PartialEq, PartialOrd)]
pub struct TuiKey(pub Option<KeyCode>, pub KeyModifiers);
impl TuiKey {
const SPLIT: char = '/';
pub fn to_crossterm (&self) -> Option<Event> {
self.0.map(|code|Event::Key(KeyEvent {
code,
modifiers: self.1,
kind: KeyEventKind::Press,
state: KeyEventState::NONE,
}))
}
pub fn named (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 const fn fill_char (c: char) -> impl Draw<Tui> {
thunk(move|to: &mut Tui|Ok(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({
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(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;
})
}))
}
/// TUI works in u16 coordinates.
impl Coord for u16 { fn plus (self, other: Self) -> Self { self.saturating_add(other) } }
impl Draw<Buffer> for u64 {
fn draw (&self, _to: &mut Buffer) { todo!() }
}
impl Draw<Buffer> for f64 {
fn draw (&self, _to: &mut Buffer) { todo!() }
}
impl Draw<Buffer> for &str {
fn draw (&self, to: &mut Buffer) {
let XYWH(x, y, w, ..) = to.centered_xy([width_chars_max(to.w(), self), 1]);
to.text(&self, x, y, w)
impl Coord for u16 {
fn plus (self, other: Self) -> Self {
self.saturating_add(other)
}
}
impl Draw<Buffer> for String {
fn draw (&self, to: &mut Buffer) { self.as_str().draw(to) }
impl Draw<Tui> for u64 {
fn draw (self, _to: &mut Tui) -> Usually<XYWH<u16>> { todo!() }
}
impl Draw<Buffer> for Arc<str> {
fn draw (&self, to: &mut Buffer) { self.as_ref().draw(to) }
impl Draw<Tui> for f64 {
fn draw (self, _to: &mut Tui) -> Usually<XYWH<u16>> { todo!() }
}
mod phat {
@ -158,12 +142,12 @@ mod phat {
pub const LO: &'static str = "";
pub const HI: &'static str = "";
/// A phat line
pub fn lo (fg: Color, bg: Color) -> impl Draw<Buffer> {
H::fixed(1, Tui::fg_bg(fg, bg, X::repeat(self::phat::LO)))
pub fn lo (fg: Color, bg: Color) -> impl Draw<Tui> {
h_exact(1, fg_bg(fg, bg, x_repeat(self::phat::LO)))
}
/// A phat line
pub fn hi (fg: Color, bg: Color) -> impl Draw<Buffer> {
H::fixed(1, Tui::fg_bg(fg, bg, X::repeat(self::phat::HI)))
pub fn hi (fg: Color, bg: Color) -> impl Draw<Tui> {
h_exact(1, fg_bg(fg, bg, x_repeat(self::phat::HI)))
}
}
@ -174,66 +158,71 @@ mod scroll {
pub const ICON_INC_H: &[char] = &[' ', '🞂', ' '];
}
fn x_repeat (c: char) {
move|to: &mut Buffer|{
let XYWH(x, y, w, h) = to.area();
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.cell_mut(Position::from((x, y))) {
if let Some(cell) = to.0.cell_mut(Position::from((x, y))) {
cell.set_symbol(&c);
}
}
}
Ok(XYWH(x, y, w, 1))
})
}
fn y_repeat (c: char) {
move|to: &mut Buffer|{
let XYWH(x, y, w, h) = to.area();
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.cell_mut(Position::from((x, y))) {
if let Some(cell) = to.0.cell_mut(Position::from((x, y))) {
cell.set_symbol(&c);
}
}
}
Ok(XYWH(x, y, 1, h))
})
}
fn xy_repeat (c: char) {
move|to: &mut Buffer|{
let XYWH(x, y, w, h) = to.area();
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.cell_mut(Position::from((x, y))) {
if let Some(cell) = to.0.cell_mut(Position::from((x, y))) {
let u = u % a;
cell.set_symbol(&c[u..u+1]);
}
}
}
}
Ok(XYWH(x, y, w, h))
})
}
/// ```
/// let _ = tengri::button_2("", "", true);
/// let _ = tengri::button_2("", "", false);
/// ```
pub fn button_2 <'a> (key: impl Draw<Buffer>, label: impl Draw<Buffer>, editing: bool) -> impl Draw<Buffer> {
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(!editing, Tui::fg_bg(Tui::g(255), Tui::g(96), label))))
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 fn button_3 <'a> (
key: impl Draw<Buffer>, label: impl Draw<Buffer>, value: impl Draw<Buffer>, editing: bool,
) -> impl Draw<Buffer> {
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(!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, &""), ))))
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, ""), ))))
}
macro_rules! border {
@ -255,9 +244,9 @@ macro_rules! border {
}
#[derive(Copy, Clone)] pub struct $T(pub bool, pub Style);
//impl Layout<Tui> for $T {}
impl Draw<Buffer> for $T {
fn draw (&self, to: &mut Buffer) {
if self.enabled() { let _ = BorderStyle::draw(self, to); }
impl Draw<Tui> for $T {
fn draw (self, to: &mut Tui) -> Usually<XYWH<u16>> {
when(self.enabled(), thunk(|to: &mut Tui|BorderStyle::draw(self, to))).draw(to)
}
}
)+}
@ -369,87 +358,7 @@ border! {
}
}
pub trait TuiOut: Screen {
fn tui_out (&mut self) -> &mut Buffer;
fn update (&mut self, area: impl Area<u16>, callback: &impl Fn(&mut Cell, u16, u16)) {
tui_update(self.buffer(), area, callback);
}
fn fill_char (&mut self, area: impl Area<u16>, c: char) {
self.update(area, &|cell,_,_|{cell.set_char(c);})
}
fn fill_bg (&mut self, area: impl Area<u16>, color: Color) {
self.update(area, &|cell,_,_|{cell.set_bg(color);})
}
fn fill_fg (&mut self, area: impl Area<u16>, color: Color) {
self.update(area, &|cell,_,_|{cell.set_fg(color);})
}
fn fill_mod (&mut self, area: impl Area<u16>, on: bool, modifier: Modifier) {
if on {
self.update(area, &|cell,_,_|cell.modifier.insert(modifier))
} else {
self.update(area, &|cell,_,_|cell.modifier.remove(modifier))
}
}
fn fill_bold (&mut self, area: impl Area<u16>, on: bool) {
self.fill_mod(area, on, Modifier::BOLD)
}
fn fill_reversed (&mut self, area: impl Area<u16>, on: bool) {
self.fill_mod(area, on, Modifier::REVERSED)
}
fn fill_crossed_out (&mut self, area: impl Area<u16>, on: bool) {
self.fill_mod(area, on, Modifier::CROSSED_OUT)
}
fn fill_ul (&mut self, area: impl Area<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);
})
}
}
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;
}
}
fn blit (&mut self, text: &impl AsRef<str>, x: u16, y: u16, style: Option<Style>) {
let text = text.as_ref();
let style = style.unwrap_or(Style::default());
let buf = self.buffer();
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)
fn text (&mut self, text: &impl AsRef<str>, x0: u16, y: u16, max_width: u16) {
let text = text.as_ref();
let buf = 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.write().unwrap().cell_mut(ratatui::prelude::Position { x, y }) {
cell.set_char(character);
} else {
break
}
}
}
}
pub trait BorderStyle: Draw<Buffer> + Copy {
pub trait BorderStyle: Draw<Tui> + Copy {
fn enabled (&self) -> bool;
fn border_n (&self) -> &str { Self::N }
fn border_s (&self) -> &str { Self::S }
@ -460,36 +369,26 @@ pub trait BorderStyle: Draw<Buffer> + Copy {
fn border_sw (&self) -> &str { Self::SW }
fn border_se (&self) -> &str { Self::SE }
fn enclose (self, w: impl Draw<Buffer>) -> impl Draw<Buffer> {
bsp_b(XY::fill(border(self.enabled(), self)), w)
}
fn enclose2 (self, w: impl Draw<Buffer>) -> impl Draw<Buffer> {
bsp_b(XY::pad(1, 1, XY::fill(border(self.enabled(), self))), w)
}
fn enclose_bg (self, w: impl Draw<Buffer>) -> impl Draw<Buffer> {
TuiOut::bg(self.style().unwrap().bg.unwrap_or(Color::Reset),
bsp_b(XY::fill(border(self.enabled(), self)), w))
}
#[inline] fn draw <'a> (&self, to: &mut impl TuiOut) -> Usually<()> {
#[inline] fn draw <'a> (self, to: &mut Tui) -> Usually<XYWH<u16>> {
if self.enabled() {
self.draw_h(to, None)?;
self.draw_v(to, None)?;
self.draw_c(to, None)?;
}
Ok(())
Ok(to.1)
}
#[inline] fn draw_h (&self, to: &mut impl TuiOut, style: Option<Style>) -> Usually<impl Area<u16>> {
let area = to.area();
#[inline] fn draw_h (self, to: &mut Tui, style: Option<Style>) -> Usually<XYWH<u16>> {
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)
let y1 = to.y_north();
let y2 = to.y_south().saturating_sub(1);
for x in to.x_west()..to.x_east().saturating_sub(1) {
to.blit(&Self::N, x, y1, style);
to.blit(&Self::S, x, y2, style)
}
Ok(area)
Ok(to.xywh())
}
#[inline] fn draw_v (&self, to: &mut impl TuiOut, style: Option<Style>) -> Usually<impl Area<u16>> {
let area = to.area();
#[inline] fn draw_v (self, to: &mut Tui, style: Option<Style>) -> Usually<XYWH<u16>> {
let area = to.1;
let style = style.or_else(||self.style_vertical());
let [x, x2, y, y2] = area.lrtb();
let h = y2 - y;
@ -504,8 +403,8 @@ pub trait BorderStyle: Draw<Buffer> + Copy {
}
Ok(area)
}
#[inline] fn draw_c (&self, to: &mut impl TuiOut, style: Option<Style>) -> Usually<impl Area<u16>> {
let area = to.area();
#[inline] fn draw_c (self, to: &mut Tui, style: Option<Style>) -> Usually<XYWH<u16>> {
let area = to.1;
let style = style.or_else(||self.style_corners());
let XYWH(x, y, w, h) = area;
if w > 1 && h > 1 {
@ -541,28 +440,26 @@ pub trait BorderStyle: Draw<Buffer> + Copy {
/// ```
/// /// TODO
/// ```
pub fn phat <T, N: Coord> (w: N, h: N, [fg, bg, hi, lo]: [Color;4], draw: impl Tui) -> impl Tui {
let top = W::exact(1, self::phat::lo(bg, hi));
let low = W::exact(1, self::phat::hi(bg, lo));
let draw = Tui::fg_bg(fg, bg, draw);
WH::min(w, h, bsp_s(top, bsp_n(low, WH::fill(draw))))
pub fn phat (w: u16, h: u16, [fg, bg, hi, lo]: [Color;4], draw: impl Draw<Tui>) -> impl Draw<Tui> {
let top = w_exact(1, self::phat::lo(bg, hi));
let low = w_exact(1, self::phat::hi(bg, lo));
let draw = fg_bg(fg, bg, draw);
wh_min(Some(w), Some(h), south(top, north(low, draw)))
}
fn x_scroll () {
|to: &mut Buffer|{
let XYWH(x1, y1, w, h) = to.area();
let mut buf = to.buffer.write().unwrap();
let x2 = x1 + w;
for (i, x) in (x1..=x2).enumerate() {
if let Some(cell) = buf.cell_mut(Position::from((x, y1))) {
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()) {
} 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]);
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);
@ -574,24 +471,23 @@ fn x_scroll () {
}
}
}
}
Ok(XYWH(*x1, *y1, *w, 1))
})
}
fn y_scroll () {
|to: &mut Buffer|{
let XYWH(x1, y1, w, h) = to.area();
let mut buf = to.buffer.write().unwrap();
let y2 = y1 + h;
for (i, y) in (y1..=y2).enumerate() {
if let Some(cell) = buf.cell_mut(Position::from((x1, y))) {
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()) {
} 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]);
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);
@ -603,56 +499,32 @@ fn y_scroll () {
}
}
}
}
Ok(XYWH(*x1, *y1, 1, *h))
})
}
/// Spawn the TUI output thread which writes colored characters to the terminal.
pub fn tui_output <W: Write, T: Draw<Buffer> + Send + Sync + 'static> (
pub fn tui_output <W: Write + Send + Sync + 'static, T: Draw<Tui> + Send + Sync + 'static> (
output: W,
exited: &Arc<AtomicBool>,
state: &Arc<RwLock<T>>,
sleep: Duration
) -> Result<Thread, std::io::Error> {
) -> Usually<Thread> {
let state = state.clone();
tui_setup(&mut output)?;
tui_setup()?;
let mut backend = CrosstermBackend::new(output);
let WH(width, height) = tui_wh(&mut backend);
let Size { width, height } = backend.size().expect("get size failed");
let mut buffer_a = Buffer::empty(Rect { x: 0, y: 0, width, height });
let mut buffer_b = Buffer::empty(Rect { x: 0, y: 0, width, height });
Thread::new_sleep(exited.clone(), sleep, move |perf| {
let size = tui_wh(&mut backend);
Ok(Thread::new_sleep(exited.clone(), sleep, move |perf| {
let Size { width, height } = backend.size().expect("get size failed");
if let Ok(state) = state.try_read() {
tui_resize(&mut backend, &mut buffer_a, size);
buffer_a = tui_redraw(&mut backend, &mut buffer_a, &mut buffer_b);
tui_resize(&mut backend, &mut buffer_a, Rect { x: 0, y: 0, width, height });
tui_redraw(&mut backend, &mut buffer_a, &mut buffer_b);
}
let timer = format!("{:>3.3}ms", perf.used.load(Relaxed));
buffer_a.set_string(0, 0, &timer, Style::default());
})
}
pub fn tui_setup (output: &mut impl Write) -> Usually<()> {
let better_panic_handler = Settings::auto().verbosity(Verbosity::Full).create_panic_handler();
std::panic::set_hook(Box::new(move |info: &std::panic::PanicHookInfo|{
output.execute(LeaveAlternateScreen).unwrap();
CrosstermBackend::new(output).show_cursor().unwrap();
disable_raw_mode().unwrap();
better_panic_handler(info);
}));
output.execute(EnterAlternateScreen)?;
CrosstermBackend::new(output).hide_cursor()?;
enable_raw_mode().map_err(Into::into)
}
pub fn tui_resize <W: Write> (
backend: &mut CrosstermBackend<W>,
buffer: &mut Buffer,
size: WH<u16>
) {
if buffer.area != size {
backend.clear_region(ClearType::All).unwrap();
buffer.resize(size);
buffer.reset();
}
})?)
}
pub fn tui_redraw <'b, W: Write> (
@ -665,7 +537,31 @@ pub fn tui_redraw <'b, W: Write> (
Backend::flush(backend).expect("failed to flush output new_buffer");
std::mem::swap(&mut prev_buffer, &mut next_buffer);
next_buffer.reset();
next_buffer
}
pub fn tui_setup () -> 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)?;
CrosstermBackend::new(stdout()).hide_cursor()?;
enable_raw_mode().map_err(Into::into)
}
pub fn tui_resize <W: Write> (
backend: &mut CrosstermBackend<W>,
buffer: &mut Buffer,
size: Rect
) {
if buffer.area != size {
backend.clear_region(ClearType::All).unwrap();
buffer.resize(size);
buffer.reset();
}
}
pub fn tui_teardown <W: Write> (backend: &mut CrosstermBackend<W>) -> Usually<()> {
@ -675,48 +571,8 @@ pub fn tui_teardown <W: Write> (backend: &mut CrosstermBackend<W>) -> Usually<()
}
pub fn tui_update (
buf: &mut Buffer, area: XYWH<u16>, callback: &impl Fn(&mut Cell, u16, u16)
Tui(buf, ..): &mut Tui, 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);
}
}
}
}
}
pub(crate) fn tui_wh <W: Write> (backend: &mut CrosstermBackend<W>) -> WH<u16> {
let Size { width, height } = backend.size().expect("get size failed");
WH(width, height)
}
/// Draw contents with foreground color applied.
pub const fn fg (enabled: bool, color: Color, item: impl Tui) -> impl Tui {
|to: &mut Buffer|item.draw(to.with_fg(enabled, color))
}
/// Draw contents with background color applied.
pub const fn bg (enabled: bool, color: Color, item: impl Tui) -> impl Tui {
|to: &mut Buffer|item.draw(to.with_bg(enabled, color))
}
/// Draw contents with modifier applied.
pub const fn modify (enabled: bool, modifier: Modifier, item: impl Tui) -> impl Tui {
|to: &mut Buffer|item.draw(to.with_modifier(enabled, modifier, item))
}
pub const fn bold (enabled: bool, item: impl Tui) -> impl Tui {
modify(enabled, Modifier::BOLD, item)
}
/// Draw contents with style applied.
pub const fn styled (enabled: bool, style: Style, item: impl Tui) -> impl Tui {
|to: &mut Buffer|item.draw(to.with_style(enabled, style, item))
}
/// Draw border around shrinked item.
@ -724,24 +580,27 @@ pub const fn styled (enabled: bool, style: Style, item: impl Tui) -> impl Tui {
/// ```
/// /// TODO
/// ```
pub const fn border <T, S: BorderStyle> (on: bool, style: S, draw: impl Tui) -> impl Tui {
WH::fill(bsp_a(when(on, |to: &mut Area|{
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());
pub const fn border <T, S: BorderStyle> (on: bool, style: S, draw: impl Draw<Tui>) -> impl Draw<Tui> {
let content = wh_pad(1, 1, draw);
let outline = when(on, thunk(move|to: &mut Tui|{
let XYWH(x, y, w, h) = to.1;
if w > 0 && h > 0 {
to.blit(&style.border_nw(), x, y, style.style());
to.blit(&style.border_ne(), x + w - 1, y, style.style());
to.blit(&style.border_sw(), x, y + h - 1, style.style());
to.blit(&style.border_se(), x + w - 1, y + h - 1, style.style());
for x in x+1..x+w-1 {
to.blit(&style.border_n(), x, y, style.style());
to.blit(&style.border_s(), x, y + 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());
for y in y+1..y+h-1 {
to.blit(&style.border_w(), x, y, style.style());
to.blit(&style.border_e(), x + w - 1, y, style.style());
}
}
}), pad(Some(1), Some(1), draw)))
Ok(XYWH(x, y, w, h))
}));
above(outline, content)
}
/// Draw TUI content or its error message.
@ -751,18 +610,17 @@ pub const fn border <T, S: BorderStyle> (on: bool, style: S, draw: impl Tui) ->
/// let _ = tengri::tui::catcher(Ok(None));
/// let _ = tengri::tui::catcher(Err("draw fail".into()));
/// ```
pub fn catcher <T, E> (error: Perhaps<E>, draw: impl Tui) -> impl Tui {
move|to: &mut Buffer|match error.as_ref() {
Ok(Some(content)) => draw(to),
Ok(None) => to.blit(&"<empty>", 0, 0, Some(Style::default().yellow())),
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 = rgb(255,224,244);
let err_bg = rgb(96, 24, 24);
let title = bsp_e(bold(true, "upsi daisy. "), "rendering failed.");
let error = bsp_e("\"why?\" ", bold(true, format!("{e}")));
&fg(err_fg, bg(err_bg, bsp_s(title, error)))(to)
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)
}
}
})
}
/// TUI buffer sized by `usize` instead of `u16`.
@ -790,3 +648,28 @@ impl BigBuffer {
y * self.width + x
}
}
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) }
}

View file

@ -1,18 +1,75 @@
use crate::draw::Draw;
use crate::{Usually, draw::Draw, space::*};
pub(crate) use ::unicode_width::*;
/// 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);
#[cfg(feature = "term")] mod impl_term {
use super::*;
use crate::term::Tui;
use ratatui::prelude::Position;
/// 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);
impl Draw<Tui> for &str {
fn draw (self, to: &mut Tui) -> Usually<XYWH<u16>> {
let XYWH(x, y, w, ..) = to.1.centered_xy([width_chars_max(to.w(), self), 1]);
to.text(&self, x, y, w)
}
}
impl Draw<Tui> for String {
fn draw (self, to: &mut Tui) -> Usually<XYWH<u16>> {
self.as_str().draw(to)
}
}
impl Draw<Tui> for std::sync::Arc<str> {
fn draw (self, to: &mut Tui) -> Usually<XYWH<u16>> {
self.as_ref().draw(to)
}
}
impl<'a, T: AsRef<str>> TrimString<T> {
fn to_ref (&self) -> TrimStringRef<'_, T> { TrimStringRef(self.0, &self.1) }
impl<T: AsRef<str>> Draw<Tui> for TrimString<T> {
fn draw (self, to: &mut Tui) -> Usually<XYWH<u16>> { self.as_ref().draw(to) }
}
impl<T: AsRef<str>> Draw<Tui> for TrimStringRef<'_, T> {
fn draw (self, to: &mut Tui) -> Usually<XYWH<u16>> {
let XYWH(x, y, w, ..) = to.1;
let mut width: u16 = 1;
let mut chars = self.1.as_ref().chars();
while let Some(c) = chars.next() {
if width > self.0 || width > w {
break
}
let pos = Position { x: x + width - 1, y };
if let Some(cell) = to.0.cell_mut(pos) {
cell.set_char(c);
}
width += c.width().unwrap_or(0) as u16;
}
let XYWH(x, y, w, ..) = XYWH(to.x(), to.y(), to.w().min(self.0).min(self.1.as_ref().width() as u16), to.h());
to.text(&self.as_ref(), x, y, w)
}
}
impl Tui {
/// 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) -> Usually<XYWH<u16>> {
let text = text.as_ref();
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) = self.0.cell_mut(ratatui::prelude::Position { x, y }) {
cell.set_char(character);
} else {
break
}
}
Ok(XYWH(x0, y, string_width, 1))
}
}
}
/// Trim string with [unicode_width].
@ -31,6 +88,23 @@ pub fn trim_string (max_width: usize, input: impl AsRef<str>) -> String {
return output.into_iter().collect()
}
/// 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);
impl<T: AsRef<str>> AsRef<str> for TrimString<T> { fn as_ref (&self) -> &str { self.1.as_ref() } }
impl<'a, T: AsRef<str>> TrimString<T> {
fn to_ref (&self) -> TrimStringRef<'_, T> { TrimStringRef(self.0, &self.1) }
}
/// 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);
impl<T: AsRef<str>> AsRef<str> for TrimStringRef<'_, T> {
fn as_ref (&self) -> &str { self.1.as_ref() }
}
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();
@ -42,41 +116,3 @@ pub(crate) fn width_chars_max (max: u16, text: impl AsRef<str>) -> u16 {
}
return width
}
#[cfg(feature = "term")] mod impl_term {
use super::*;
use crate::draw::XYWH;
use ratatui::prelude::{Buffer, Position};
impl<'a, T> Draw<Buffer> for TrimStringRef<'a, T> {
fn draw (&self, to: &mut Buffer) {
let XYWH(x, y, w, ..) = XYWH(to.x(), to.y(), to.w().min(self.0).min(self.1.as_ref().width() as u16), to.h());
to.text(&self, x, y, w)
}
}
impl<T> Draw<Buffer> for TrimString<T> {
fn draw (&self, to: &mut Buffer) { self.as_ref().draw(to) }
}
impl<'a, T: AsRef<str>> Draw<Buffer> for TrimString<T> {
fn draw (&self, to: &mut Buffer) { Draw::draw(&self.as_ref(), to) }
}
impl<T: AsRef<str>> Draw<Buffer> for TrimStringRef<'_, T> {
fn draw (&self, target: &mut Buffer) {
let area = target.area();
let mut buf = target.buffer.write().unwrap();
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) = buf.cell_mut(Position {
x: area.x() + width - 1,
y: area.y()
}) {
cell.set_char(c);
}
width += c.width().unwrap_or(0) as u16;
}
}
}
}

View file

@ -54,7 +54,7 @@ impl PerfModel {
None
}
}
pub fn cycle <F: Fn(&Self)->T, T> (&self, call: &F) -> T {
pub fn cycle <F: FnMut(&Self)->T, T> (&self, call: &mut F) -> T {
let t0 = self.get_t0();
let result = call(self);
let _t1 = self.get_t1(t0).unwrap();