feat: llimphi standalone — framework UI soberano extraído del monorepo

Motor gráfico Llimphi como workspace independiente: bucle Elm
(input→update→view→layout→raster→present) sobre wgpu+vello+taffy+parley.
Núcleo (hal/raster/layout/text/ui/theme/surface/motion/icons) + ~40 widgets
+ módulos, sin dependencias al resto del monorepo. cargo check --workspace
pasa (64 crates). Puerta de entrada: cargo run -p llimphi-ui --example counter.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
This commit is contained in:
2026-06-04 04:23:42 +00:00
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//! Demo de `llimphi-widget-panes` — "tmux de componentes gioser".
//!
//! Dos tipos de panel heterogéneos (Contador y Notas) conviviendo en un
//! mismo árbol BSP que se parte horizontal/vertical, se cierra, se enfoca
//! (click) y se redimensiona (arrastrando los divisores). Prueba de punta
//! a punta de que componentes distintos se montan en un layout
//! intercambiable con splits resizables.
//!
//! Correr: `cargo run -p llimphi-widget-panes --example panes_demo --release`
use std::collections::HashMap;
use llimphi_ui::llimphi_layout::taffy::{
prelude::{length, percent, FlexDirection, Size, Style},
Rect,
};
use llimphi_ui::{App, DragPhase, Handle, View};
use llimphi_theme::Theme;
use llimphi_widget_panes::{panes_view, Axis, Layout, PaneId, PanesPalette, Side};
struct Demo;
#[derive(Clone)]
enum Msg {
Focus(PaneId),
Split(Axis),
Close,
Resize(Vec<Side>, f32),
Inc(PaneId),
Dec(PaneId),
AddNote(PaneId),
}
enum Kind {
Counter(i64),
Notes(Vec<String>),
}
struct Pane {
title: String,
kind: Kind,
}
struct Model {
layout: Layout,
panes: HashMap<PaneId, Pane>,
focused: PaneId,
next_id: PaneId,
theme: Theme,
}
impl App for Demo {
type Model = Model;
type Msg = Msg;
fn title() -> &'static str {
"panes — tmux de componentes gioser"
}
fn init(_: &Handle<Msg>) -> Model {
let mut panes = HashMap::new();
panes.insert(
1,
Pane {
title: "Contador".into(),
kind: Kind::Counter(0),
},
);
panes.insert(
2,
Pane {
title: "Notas".into(),
kind: Kind::Notes(vec!["arrastrá el divisor del medio →".into()]),
},
);
let mut layout = Layout::single(1);
layout.split(1, 2, Axis::Horizontal);
Model {
layout,
panes,
focused: 1,
next_id: 3,
theme: Theme::dark(),
}
}
fn update(mut model: Model, msg: Msg, _: &Handle<Msg>) -> Model {
match msg {
Msg::Focus(id) => model.focused = id,
Msg::Split(axis) => {
let id = model.next_id;
model.next_id += 1;
let kind = if id % 2 == 0 {
Kind::Counter(0)
} else {
Kind::Notes(vec![])
};
let title = match &kind {
Kind::Counter(_) => "Contador".to_string(),
Kind::Notes(_) => "Notas".to_string(),
};
model.panes.insert(id, Pane { title, kind });
model.layout.split(model.focused, id, axis);
model.focused = id;
}
Msg::Close => {
if model.layout.count() > 1 {
let target = model.focused;
let (nl, removed) = model.layout.clone().without(target);
if removed {
model.layout = nl;
model.panes.remove(&target);
model.focused = model.layout.first_leaf();
}
}
}
Msg::Resize(path, d) => model.layout.resize(&path, d),
Msg::Inc(id) => {
if let Some(Pane {
kind: Kind::Counter(n),
..
}) = model.panes.get_mut(&id)
{
*n += 1;
}
}
Msg::Dec(id) => {
if let Some(Pane {
kind: Kind::Counter(n),
..
}) = model.panes.get_mut(&id)
{
*n -= 1;
}
}
Msg::AddNote(id) => {
if let Some(Pane {
kind: Kind::Notes(v),
..
}) = model.panes.get_mut(&id)
{
let n = v.len() + 1;
v.push(format!("nota #{n}"));
}
}
}
model
}
fn view(model: &Model) -> View<Msg> {
let t = &model.theme;
let toolbar = View::new(Style {
flex_direction: FlexDirection::Row,
gap: Size {
width: length(8.0),
height: length(8.0),
},
padding: uniform(8.0),
flex_shrink: 0.0,
..Default::default()
})
.fill(t.bg_panel)
.children(vec![
button("Split →", Msg::Split(Axis::Horizontal), t),
button("Split ↓", Msg::Split(Axis::Vertical), t),
button("Cerrar", Msg::Close, t),
View::new(Style {
flex_grow: 1.0,
..Default::default()
}),
label(
format!("foco #{} · {} paneles", model.focused, model.layout.count()),
13.0,
t.fg_muted,
),
]);
let palette = PanesPalette::from_theme(t);
let panes = &model.panes;
let theme = t;
let area = panes_view(
&model.layout,
model.focused,
move |id| render_pane(panes, theme, id),
|path, phase, d| {
let _ = phase;
Some(Msg::Resize(path, d))
},
Msg::Focus,
&palette,
);
let area_wrap = View::new(Style {
flex_grow: 1.0,
size: Size {
width: percent(1.0),
height: percent(1.0),
},
min_size: Size {
width: length(0.0),
height: length(0.0),
},
..Default::default()
})
.children(vec![area]);
View::new(Style {
flex_direction: FlexDirection::Column,
size: Size {
width: percent(1.0),
height: percent(1.0),
},
..Default::default()
})
.fill(t.bg_app)
.children(vec![toolbar, area_wrap])
}
}
fn render_pane(panes: &HashMap<PaneId, Pane>, t: &Theme, id: PaneId) -> View<Msg> {
let Some(pane) = panes.get(&id) else {
return label("(panel vacío)".to_string(), 14.0, t.fg_muted);
};
let header = label(format!("{} #{id}", pane.title), 13.0, t.fg_text);
let body = match &pane.kind {
Kind::Counter(n) => View::new(Style {
flex_direction: FlexDirection::Column,
gap: Size {
width: length(8.0),
height: length(8.0),
},
..Default::default()
})
.children(vec![
label(format!("{n}"), 44.0, t.accent),
View::new(Style {
flex_direction: FlexDirection::Row,
gap: Size {
width: length(8.0),
height: length(8.0),
},
..Default::default()
})
.children(vec![
button("", Msg::Dec(id), t),
button("+", Msg::Inc(id), t),
]),
]),
Kind::Notes(v) => {
let mut lines: Vec<View<Msg>> = v
.iter()
.map(|s| label(format!("{s}"), 14.0, t.fg_text))
.collect();
lines.push(button("+ nota", Msg::AddNote(id), t));
View::new(Style {
flex_direction: FlexDirection::Column,
gap: Size {
width: length(6.0),
height: length(6.0),
},
..Default::default()
})
.children(lines)
}
};
View::new(Style {
flex_direction: FlexDirection::Column,
gap: Size {
width: length(10.0),
height: length(10.0),
},
padding: uniform(12.0),
flex_grow: 1.0,
..Default::default()
})
.children(vec![header, body])
}
fn button(text: &str, msg: Msg, t: &Theme) -> View<Msg> {
View::new(Style {
padding: Rect {
left: length(12.0),
right: length(12.0),
top: length(6.0),
bottom: length(6.0),
},
flex_shrink: 0.0,
..Default::default()
})
.fill(t.bg_button)
.hover_fill(t.bg_button_hover)
.radius(6.0)
.on_click(msg)
.children(vec![label(text.to_string(), 14.0, t.fg_text)])
}
fn label(
text: String,
size: f32,
color: llimphi_ui::llimphi_raster::peniko::Color,
) -> View<Msg> {
View::new(Style::default()).text(text, size, color)
}
fn uniform(px: f32) -> Rect<llimphi_ui::llimphi_layout::taffy::prelude::LengthPercentage> {
Rect {
left: length(px),
right: length(px),
top: length(px),
bottom: length(px),
}
}
fn main() {
llimphi_ui::run::<Demo>();
}