basically failed (too much code, slower (macros), no new features)

Cargo.toml

@@ -1,7 +1,7 @@
 [package]
 name = "gui"
 version = "0.1.0"
-edition = "2024"
+edition = "2021"
 
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 

src/base/mod.rs

@@ -1,8 +1,9 @@
 use std::ops::Range;
 
 use crate::{
-    UIColor, Widget, WidgetArrLike, WidgetFn, WidgetId, WidgetLike,
-    primitive::{Axis, Painter, RoundedRectData, UIRegion, Vec2},
+    primitive::{Axis, Painter, RoundedRectData, UIRegion},
+    ToId, UIColor, Widget, WidgetArrLike, WidgetFn, WidgetId, WidgetIdLikeTuple, WidgetLike,
+    WidgetLikeTuple,
 };
 
 #[derive(Clone, Copy)]
@@ -56,13 +57,13 @@ impl Span {
     ) -> Self {
         let ratios = ratios.map(|r| r.to_f32());
         let total: f32 = ratios.iter().sum();
-        let mut start = -1.0;
+        let mut start = 0.0;
         Self {
             elements: elements
                 .into_iter()
                 .zip(ratios)
                 .map(|(e, r)| {
-                    let end = start + (r / total) * 2.0;
+                    let end = start + r / total;
                     let res = (start..end, e);
                     start = end;
                     res
@@ -119,7 +120,6 @@ impl<T: UINum> From<T> for Padding {
 
 pub trait WidgetUtil {
     fn pad(self, padding: impl Into<Padding>) -> impl WidgetLike<Widget = Regioned>;
-    fn center(self, size: impl Into<Vec2>) -> impl WidgetLike<Widget = Regioned>;
 }
 
 impl<W: WidgetLike> WidgetUtil for W {
@@ -129,22 +129,18 @@ impl<W: WidgetLike> WidgetUtil for W {
             inner: self.add(ui).erase_type(),
         })
     }
-
-    fn center(self, size: impl Into<Vec2>) -> impl WidgetLike<Widget = Regioned> {
-        WidgetFn(|ui| Regioned {
-            region: UIRegion::center(size.into()),
-            inner: self.add(ui).erase_type(),
-        })
-    }
 }
 
 pub trait WidgetArrUtil<const LEN: usize> {
     fn span(self, axis: Axis, ratios: [impl UINum; LEN]) -> impl WidgetLike<Widget = Span>;
 }
 
-impl<const LEN: usize, Wa: WidgetArrLike<LEN>> WidgetArrUtil<LEN> for Wa {
+impl<const LEN: usize, Wa: WidgetArrLike<LEN>> WidgetArrUtil<LEN> for Wa
+where
+    <Wa::Ws as WidgetLikeTuple<LEN>>::Wrap<ToId>: WidgetIdLikeTuple<LEN>,
+{
     fn span(self, axis: Axis, ratios: [impl UINum; LEN]) -> impl WidgetLike<Widget = Span> {
-        WidgetFn(move |ui| Span::proportioned(axis, ratios, self.ui(ui).arr))
+        WidgetFn(move |ui| Span::proportioned(axis, ratios, self.ui(ui).erase_types()))
     }
 }
 

src/layout/ui.rs

@@ -31,15 +31,11 @@ impl From<UI> for UIBuilder {
 }
 
 impl UIBuilder {
-    pub fn add<W: Widget>(&mut self, w: impl WidgetLike<Widget = W>) -> WidgetRef<W> {
-        WidgetRef::new([w.add(self).erase_type()])
+    pub fn add<W: Widget>(&mut self, w: W) -> WidgetRef<W> {
+        WidgetRef::new(self.clone(), (self.push(w),))
     }
 
-    pub fn add_widget<W: Widget>(&mut self, w: W) -> WidgetRef<W> {
-        WidgetRef::new([self.push(w)])
-    }
-
-    pub fn push<W: Widget>(&mut self, w: W) -> WidgetId {
+    pub fn push<W: Widget>(&mut self, w: W) -> WidgetId<W> {
         let mut ui = self.ui.borrow_mut();
         let id = ui.ids.next();
         ui.widgets.insert(id.duplicate(), w);

src/layout/widget.rs

@@ -3,7 +3,11 @@ use std::{
     marker::PhantomData,
 };
 
-use crate::{primitive::Painter, util::ID, UIBuilder};
+use crate::{
+    primitive::Painter,
+    util::{impl_tuple, ID},
+    UIBuilder,
+};
 
 pub trait Widget: 'static + Any {
     fn draw(&self, painter: &mut Painter);
@@ -15,19 +19,21 @@ impl<W: Widget> Widget for (W,) {
     }
 }
 
-pub struct AnyWidget;
-
 #[derive(Eq, Hash, PartialEq, Debug)]
-pub struct WidgetId<W = AnyWidget> {
+pub struct WidgetId<W = ()> {
     pub(super) ty: TypeId,
     pub(super) id: ID,
     _pd: PhantomData<W>,
 }
 
 // TODO: temp
-impl<W> Clone for WidgetId<W> {
+impl<W: Widget> Clone for WidgetId<W> {
     fn clone(&self) -> Self {
-        Self::new(self.id.duplicate(), self.ty)
+        Self {
+            ty: self.ty,
+            id: self.id.duplicate(),
+            _pd: self._pd,
+        }
     }
 }
 
@@ -39,7 +45,7 @@ impl<W> WidgetId<W> {
             _pd: PhantomData,
         }
     }
-    pub fn erase_type(self) -> WidgetId<AnyWidget> {
+    pub fn erase_type(self) -> WidgetId<()> {
         self.cast_type()
     }
 
@@ -53,7 +59,7 @@ impl<W> WidgetId<W> {
 }
 
 pub trait WidgetLike {
-    type Widget;
+    type Widget: Widget;
     fn add(self, ui: &mut UIBuilder) -> WidgetId<Self::Widget>;
 }
 
@@ -64,96 +70,109 @@ impl<W: Widget, F: FnOnce(&mut UIBuilder) -> W> WidgetLike for WidgetFn<F, W> {
     type Widget = W;
     fn add(self, ui: &mut UIBuilder) -> WidgetId<W> {
         let w = (self.0)(ui);
-        ui.add_widget(w).to_id()
+        ui.add(w).to_id()
     }
 }
 
 impl<W: Widget> WidgetLike for W {
     type Widget = W;
     fn add(self, ui: &mut UIBuilder) -> WidgetId<W> {
-        ui.add_widget(self).to_id()
+        ui.add(self).to_id()
     }
 }
 
-impl<W> WidgetLike for WidgetId<W> {
+impl<W: Widget> WidgetLike for WidgetId<W> {
     type Widget = W;
     fn add(self, _: &mut UIBuilder) -> WidgetId<W> {
         self
     }
 }
 
-impl<W> WidgetLike for WidgetArr<1, (W,)> {
+impl<W: Widget> WidgetLike for WidgetArr<1, (W,)> {
     type Widget = W;
     fn add(self, _: &mut UIBuilder) -> WidgetId<W> {
-        let [id] = self.arr;
-        id.cast_type()
+        self.arr.0
     }
 }
 
-pub struct WidgetArr<const LEN: usize, Ws> {
-    pub arr: [WidgetId; LEN],
-    _pd: PhantomData<Ws>,
+pub struct WidgetArr<const LEN: usize, Ws: WidgetLikeTuple<LEN>> {
+    pub ui: UIBuilder,
+    pub arr: Ws::Wrap<ToId>,
 }
 
-impl<const LEN: usize, Ws> WidgetArr<LEN, Ws> {
-    pub fn new(arr: [WidgetId; LEN]) -> Self {
-        Self {
-            arr,
-            _pd: PhantomData,
-        }
+impl<const LEN: usize, Ws: WidgetLikeTuple<LEN>> WidgetArr<LEN, Ws>
+where
+    Ws::Wrap<ToId>: WidgetIdLikeTuple<LEN>,
+{
+    pub fn new(ui: UIBuilder, arr: Ws::Wrap<ToId>) -> Self {
+        Self { ui, arr }
+    }
+    pub fn erase_types(self) -> [WidgetId; LEN] {
+        self.arr.map::<EraseId>(&mut ())
     }
 }
 
 pub type WidgetRef<W> = WidgetArr<1, (W,)>;
 
-impl<W> WidgetRef<W> {
-    pub fn handle(&self) -> WidgetId<W> {
-        let [id] = &self.arr;
-        id.clone().cast_type()
+impl<W: WidgetLike> WidgetRef<W> {
+    pub fn handle(&self) -> WidgetId<W::Widget> {
+        self.arr.0.clone()
     }
-    pub fn to_id(self) -> WidgetId<W> {
-        let [id] = self.arr;
-        id.cast_type()
+    pub fn to_id(self) -> WidgetId<W::Widget> {
+        self.arr.0
     }
 }
 
 pub trait WidgetArrLike<const LEN: usize> {
-    type Ws;
+    type Ws: WidgetLikeTuple<LEN>;
     fn ui(self, ui: &mut UIBuilder) -> WidgetArr<LEN, Self::Ws>;
 }
 
-impl<const LEN: usize, Ws> WidgetArrLike<LEN> for WidgetArr<LEN, Ws> {
+impl<const LEN: usize, Ws: WidgetLikeTuple<LEN>> WidgetArrLike<LEN> for WidgetArr<LEN, Ws> {
     type Ws = Ws;
     fn ui(self, _: &mut UIBuilder) -> WidgetArr<LEN, Ws> {
         self
     }
 }
 
-// I hate this language it's so bad why do I even use it
-macro_rules! impl_widget_arr {
-    ($n:expr;$($T:tt)*) => {
-        impl<$($T: WidgetLike,)*> WidgetArrLike<$n> for ($($T,)*) {
-            type Ws = ($($T::Widget,)*);
-            fn ui(self, ui: &mut UIBuilder) -> WidgetArr<$n, ($($T::Widget,)*)> {
-                #[allow(non_snake_case)]
-                let ($($T,)*) = self;
-                WidgetArr::new(
-                    [$($T.add(ui).cast_type(),)*],
-                )
-            }
-        }
-    };
+impl_tuple!(Widget);
+impl_tuple!(WidgetLike);
+impl_tuple!(WidgetIdLike);
+
+pub trait WidgetIdLike {
+    fn erase_type(self) -> WidgetId;
 }
 
-impl_widget_arr!(1;A);
-impl_widget_arr!(2;A B);
-impl_widget_arr!(3;A B C);
-impl_widget_arr!(4;A B C D);
-impl_widget_arr!(5;A B C D E);
-impl_widget_arr!(6;A B C D E F);
-impl_widget_arr!(7;A B C D E F G);
-impl_widget_arr!(8;A B C D E F G H);
-impl_widget_arr!(9;A B C D E F G H I);
-impl_widget_arr!(10;A B C D E F G H I J);
-impl_widget_arr!(11;A B C D E F G H I J K);
-impl_widget_arr!(12;A B C D E F G H I J K L);
+impl<W> WidgetIdLike for WidgetId<W> {
+    fn erase_type(self) -> WidgetId {
+        self.erase_type()
+    }
+}
+
+pub struct ToId;
+impl WidgetLikeWrapper for ToId {
+    type Wrap<T: WidgetLike> = WidgetId<T::Widget>;
+    type Ctx = UIBuilder;
+    fn wrap<T: WidgetLike>(t: T, ctx: &mut Self::Ctx) -> Self::Wrap<T> {
+        t.add(ctx)
+    }
+}
+
+struct EraseId;
+impl WidgetIdLikeMapper for EraseId {
+    type Map = WidgetId<()>;
+    type Ctx = ();
+    fn map<Id: WidgetIdLike>(t: Id, _: &mut Self::Ctx) -> Self::Map {
+        t.erase_type()
+    }
+}
+
+impl<T: WidgetLikeTuple<LEN>, const LEN: usize> WidgetArrLike<LEN> for T
+where
+    T::Wrap<ToId>: WidgetIdLikeTuple<LEN>,
+{
+    type Ws = T;
+    fn ui(self, ui: &mut UIBuilder) -> WidgetArr<LEN, T> {
+        WidgetArr::new(ui.clone(), self.wrap::<ToId>(ui))
+    }
+}

src/render/primitive/color.rs

@@ -30,10 +30,6 @@ impl<T: ColorNum> Color<T> {
     pub const fn rgb(r: T, g: T, b: T) -> Self {
         Self { r, g, b, a: T::MAX }
     }
-    pub fn alpha(mut self, a: T) -> Self {
-        self.a = a;
-        self
-    }
 }
 
 pub trait ColorNum {

src/render/primitive/format.rs

@@ -1,10 +1,10 @@
-use crate::primitive::{Vec2, vec2::point};
+use crate::primitive::{point::point, Point};
 
 #[repr(C)]
-#[derive(Debug, Copy, Clone, bytemuck::Pod, bytemuck::Zeroable, Default)]
+#[derive(Copy, Clone, bytemuck::Pod, bytemuck::Zeroable, Default)]
 pub struct UIPos {
-    pub anchor: Vec2,
-    pub offset: Vec2,
+    pub anchor: Point,
+    pub offset: Point,
 }
 
 impl UIPos {
@@ -15,32 +15,24 @@ impl UIPos {
         }
     }
 
-    pub const fn center() -> Self {
-        Self::anchor_offset(0.0, 0.0, 0.0, 0.0)
-    }
-
     pub const fn top_left() -> Self {
-        Self::anchor_offset(-1.0, -1.0, 0.0, 0.0)
+        Self::anchor_offset(0.0, 0.0, 0.0, 0.0)
     }
 
     pub const fn bottom_right() -> Self {
         Self::anchor_offset(1.0, 1.0, 0.0, 0.0)
     }
 
-    pub const fn offset(mut self, offset: Vec2) -> Self {
-        self.offset = offset;
-        self
-    }
-
     pub const fn within(&self, region: &UIRegion) -> UIPos {
-        let lerp = self.anchor_01();
-        let anchor = region.top_left.anchor.lerp(region.bot_right.anchor, lerp);
-        let offset = self.offset + region.top_left.offset.lerp(region.bot_right.offset, lerp);
-        UIPos { anchor, offset }
-    }
-
-    pub const fn anchor_01(&self) -> Vec2 {
-        (self.anchor + 1.0) / 2.0
+        let range = region.bot_right.anchor - region.top_left.anchor;
+        let region_offset = region
+            .top_left
+            .offset
+            .lerp(region.bot_right.offset, self.anchor);
+        UIPos {
+            anchor: region.top_left.anchor + self.anchor * range,
+            offset: self.offset + region_offset,
+        }
     }
 
     pub fn axis_mut(&mut self, axis: Axis) -> UIPosAxisView<'_> {
@@ -76,12 +68,6 @@ impl UIRegion {
             bot_right: UIPos::bottom_right(),
         }
     }
-    pub fn center(size: Vec2) -> Self {
-        Self {
-            top_left: UIPos::center().offset(-size / 2.0),
-            bot_right: UIPos::center().offset(size / 2.0),
-        }
-    }
     pub fn within(&self, parent: &Self) -> Self {
         Self {
             top_left: self.top_left.within(parent),

src/render/primitive/mod.rs

@@ -1,12 +1,12 @@
 mod color;
 mod def;
 mod format;
-mod vec2;
+mod point;
 
 pub use color::*;
 pub use def::*;
 pub use format::*;
-pub use vec2::*;
+pub use point::*;
 
 use crate::{render::data::PrimitiveInstance, WidgetId, Widgets};
 use bytemuck::Pod;

src/render/primitive/point.rs

@@ -1,17 +1,17 @@
 use std::ops::*;
 
 #[repr(C)]
-#[derive(Debug, Clone, Copy, PartialEq, Default, bytemuck::Pod, bytemuck::Zeroable)]
-pub struct Vec2 {
+#[derive(Clone, Copy, PartialEq, Default, bytemuck::Pod, bytemuck::Zeroable)]
+pub struct Point {
     pub x: f32,
     pub y: f32,
 }
 
-pub const fn point(x: f32, y: f32) -> Vec2 {
-    Vec2::new(x, y)
+pub const fn point(x: f32, y: f32) -> Point {
+    Point::new(x, y)
 }
 
-impl Vec2 {
+impl Point {
     pub const fn new(x: f32, y: f32) -> Self {
         Self { x, y }
     }
@@ -29,7 +29,7 @@ const fn lerp(x: f32, y: f32, amt: f32) -> f32 {
     (1.0 - amt) * x + y * amt
 }
 
-impl const From<f32> for Vec2 {
+impl const From<f32> for Point {
     fn from(v: f32) -> Self {
         Self { x: v, y: v }
     }
@@ -37,7 +37,7 @@ impl const From<f32> for Vec2 {
 
 macro_rules! impl_op_inner {
     ($op:ident $fn:ident $opa:ident $fna:ident) => {
-        impl const $op for Vec2 {
+        impl const $op for Point {
             type Output = Self;
 
             fn $fn(self, rhs: Self) -> Self::Output {
@@ -47,13 +47,13 @@ macro_rules! impl_op_inner {
                 }
             }
         }
-        impl $opa for Vec2 {
+        impl $opa for Point {
             fn $fna(&mut self, rhs: Self) {
                 self.x.$fna(rhs.x);
                 self.y.$fna(rhs.y);
             }
         }
-        impl const $op<f32> for Vec2 {
+        impl const $op<f32> for Point {
             type Output = Self;
 
             fn $fn(self, rhs: f32) -> Self::Output {
@@ -63,7 +63,7 @@ macro_rules! impl_op_inner {
                 }
             }
         }
-        impl $opa<f32> for Vec2 {
+        impl $opa<f32> for Point {
             fn $fna(&mut self, rhs: f32) {
                 self.x.$fna(rhs);
                 self.y.$fna(rhs);
@@ -82,19 +82,3 @@ impl_op!(Add add);
 impl_op!(Sub sub);
 impl_op!(Mul mul);
 impl_op!(Div div);
-
-impl Neg for Vec2 {
-    type Output = Self;
-
-    fn neg(mut self) -> Self::Output {
-        self.x = -self.x;
-        self.y = -self.y;
-        self
-    }
-}
-
-impl From<(f32, f32)> for Vec2 {
-    fn from((x, y): (f32, f32)) -> Self {
-        Self { x, y }
-    }
-}

src/render/shader.wgsl

@@ -42,8 +42,8 @@ fn vs_main(
 ) -> VertexOutput {
     var out: VertexOutput;
 
-    let top_left = (in.top_left_anchor + 1.0) / 2.0 * window.dim + in.top_left_offset;
-    let bot_right = (in.bottom_right_anchor + 1.0) / 2.0 * window.dim + in.bottom_right_offset;
+    let top_left = in.top_left_anchor * window.dim + in.top_left_offset;
+    let bot_right = in.bottom_right_anchor * window.dim + in.bottom_right_offset;
     let size = bot_right - top_left;
 
     var pos = top_left + vec2<f32>(

src/testing/mod.rs

@@ -1,7 +1,7 @@
 use std::sync::Arc;
 
 use app::App;
-use gui::{RoundedRect, UI, UIColor, WidgetArrUtil, WidgetUtil, primitive::Axis};
+use gui::{primitive::Axis, RoundedRect, UIColor, WidgetArrUtil, WidgetUtil, UI};
 use render::Renderer;
 use winit::{event::WindowEvent, event_loop::ActiveEventLoop, window::Window};
 
@@ -33,7 +33,7 @@ impl Client {
                 (
                     blue,
                     (
-                        rect.color(UIColor::RED).center((100.0, 100.0)),
+                        rect.color(UIColor::RED),
                         (
                             rect.color(UIColor::ORANGE),
                             rect.color(UIColor::LIME).pad(10.0),
@@ -50,7 +50,6 @@ impl Client {
                 .span(Axis::Y, [3, 1])
                 .pad(10),
         );
-        // let mut ui = ui.finish((blue, rect.color(UIColor::RED)).span(Axis::X, [1, 1]));
         ui.widgets.get_mut(&handle).unwrap().color = UIColor::MAGENTA;
         renderer.update(&ui);
         Self { renderer }

src/util/id.rs

@@ -27,6 +27,7 @@ impl IDTracker {
         id
     }
 
+    // TODO: use this
     #[allow(dead_code)]
     pub fn free(&mut self, id: ID) {
         self.free.push(id);

src/util/mod.rs

@@ -1,3 +1,5 @@
 mod id;
+mod tuple;
 
 pub use id::*;
+pub use tuple::*;

src/util/tuple.rs

@@ -0,0 +1,54 @@
+macro_rules! impl_tuple {
+    ($Tuple:ident $Bound:ident $Wrapper:ident $Mapper:ident $n:expr;$TL:tt $($T:tt)*) => {
+        #[allow(non_snake_case)]
+        impl<$($T: $Bound,)* $TL: $Bound> $Tuple<$n> for ($($T,)* $TL,) {
+            type Wrap<W: $Wrapper> = ($(W::Wrap<$T>,)* W::Wrap<$TL>,);
+            type Map<M: $Mapper> = [M::Map; $n];
+            fn wrap<W: $Wrapper>(self, ctx: &mut W::Ctx) -> ($(W::Wrap<$T>,)* W::Wrap<$TL>,) {
+                let ($($T,)* $TL,) = self;
+                ($(W::wrap($T, ctx),)* W::wrap($TL, ctx),)
+            }
+            fn map<M: $Mapper>(self, ctx: &mut M::Ctx) -> [M::Map; $n] {
+                let ($($T,)* $TL,) = self;
+                [$(M::map($T, ctx),)* M::map($TL, ctx)]
+            }
+        }
+    };
+    ($Tuple:ident, $Bound:ident, $Wrapper:ident, $Mapper:ident) => {
+        pub trait $Wrapper {
+            type Wrap<T: $Bound>;
+            type Ctx;
+            fn wrap<T: $Bound>(t: T, ctx: &mut Self::Ctx) -> Self::Wrap<T>;
+        }
+
+        pub trait $Mapper {
+            type Map;
+            type Ctx;
+            fn map<T: $Bound>(t: T, ctx: &mut Self::Ctx) -> Self::Map;
+        }
+
+        pub trait $Tuple<const LEN: usize> {
+            type Wrap<W: $Wrapper>;
+            type Map<M: $Mapper>;
+            fn map<M: $Mapper>(self, ctx: &mut M::Ctx) -> [M::Map; LEN];
+            fn wrap<W: $Wrapper>(self, ctx: &mut W::Ctx) -> Self::Wrap<W>;
+        }
+
+        impl_tuple!($Tuple $Bound $Wrapper $Mapper 1;A);
+        impl_tuple!($Tuple $Bound $Wrapper $Mapper 2;A B);
+        impl_tuple!($Tuple $Bound $Wrapper $Mapper 3;A B C);
+        impl_tuple!($Tuple $Bound $Wrapper $Mapper 4;A B C D);
+        impl_tuple!($Tuple $Bound $Wrapper $Mapper 5;A B C D E);
+        impl_tuple!($Tuple $Bound $Wrapper $Mapper 6;A B C D E F);
+        // impl_tuple!($Tuple $Bound $Wrapper $Mapper 7;A B C D E F G);
+        // impl_tuple!($Tuple $Bound $Wrapper $Mapper 8;A B C D E F G H);
+        // impl_tuple!($Tuple $Bound $Wrapper $Mapper 9;A B C D E F G H I);
+        // impl_tuple!($Tuple $Bound $Wrapper $Mapper 10;A B C D E F G H I J);
+        // impl_tuple!($Tuple $Bound $Wrapper $Mapper 11;A B C D E F G H I J K);
+        // impl_tuple!($Tuple $Bound $Wrapper $Mapper 12;A B C D E F G H I J K L);
+    };
+    ($Bound:ident) => {
+        impl_tuple!(${concat($Bound, Tuple)}, $Bound, ${concat($Bound, Wrapper)}, ${concat($Bound, Mapper)});
+    }
+}
+pub(crate) use impl_tuple;