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//! Example demonstrating superellipse corner curvature variations.
//!
//! This example showcases different corner styles using CSS K-values:
//! - Squircle (K=2, n=4): iOS-style smooth corners
//! - Circle (K=1, n=2): Standard circular corners (default)
//! - Bevel (K=0, n=1): Diagonal cut corners
//! - Scoop (K=-1, n=0.5): Concave/scooped inward corners
use guido::prelude::*;
fn main() {
App::new().run(|app| {
app.add_surface(
SurfaceConfig::new()
.width(500)
.height(250)
.anchor(Anchor::TOP | Anchor::LEFT)
.background_color(Color::rgb(0.1, 0.1, 0.15)),
|| {
container()
.layout(Flex::column().spacing(12.0))
.child(
// Row 1: Different curvature values with solid colors
container()
.layout(Flex::row().spacing(8.0))
.child(
container()
.padding(12.0)
.background(Color::rgb(0.3, 0.2, 0.4))
.corners(Corners::squircle(12.0))
// K=2 → n=4
.child(text("Squircle\n(K=2)").color(Color::WHITE)),
)
.child(
container()
.padding(12.0)
.background(Color::rgb(0.2, 0.3, 0.4))
.corners(12.0)
// Default circular K=1 → n=2
.child(text("Circle\n(K=1)").color(Color::WHITE)),
)
.child(
container()
.padding(12.0)
.background(Color::rgb(0.4, 0.3, 0.2))
.corners(Corners::bevel(12.0))
// K=0 → n=1
.child(text("Bevel\n(K=0)").color(Color::WHITE)),
)
.child(
container()
.padding(12.0)
.background(Color::rgb(0.2, 0.4, 0.3))
.corners(Corners::scoop(12.0))
// K=-1 → n=0.5
.when_hovered(|s| s.lighter(0.1))
.when_pressed(|s| s.ripple())
.child(text("Scoop\n(K=-1)").color(Color::WHITE)),
),
)
.child(
// Row 2: With borders
container()
.layout(Flex::row().spacing(8.0))
.child(
container()
.padding(12.0)
.background(Color::rgb(0.15, 0.15, 0.2))
.corners(Corners::squircle(12.0))
.border(2.0, Color::rgb(0.5, 0.3, 0.7))
.child(text("Squircle\nBorder").color(Color::WHITE)),
)
.child(
container()
.padding(12.0)
.background(Color::rgb(0.15, 0.15, 0.2))
.corners(12.0)
.border(2.0, Color::rgb(0.3, 0.5, 0.7))
.child(text("Circle\nBorder").color(Color::WHITE)),
)
.child(
container()
.padding(12.0)
.background(Color::rgb(0.15, 0.15, 0.2))
.corners(Corners::bevel(12.0))
.border(2.0, Color::rgb(0.7, 0.5, 0.3))
.child(text("Bevel\nBorder").color(Color::WHITE)),
)
.child(
container()
.padding(12.0)
.background(Color::rgb(0.15, 0.15, 0.2))
.corners(Corners::scoop(12.0))
.border(2.0, Color::rgb(0.3, 0.7, 0.5))
.when_hovered(|s| s.lighter(0.1))
.when_pressed(|s| s.ripple())
.child(text("Scoop\nBorder").color(Color::WHITE)),
),
)
.child(
// Row 3: With gradients
container()
.layout(Flex::row().spacing(8.0))
.child(
container()
.padding(12.0)
.gradient(LinearGradient::horizontal(
Color::rgb(0.4, 0.2, 0.5),
Color::rgb(0.2, 0.4, 0.6),
))
.corners(Corners::squircle(12.0))
.child(text("Squircle\nGradient").color(Color::WHITE)),
)
.child(
container()
.padding(12.0)
.gradient(LinearGradient::horizontal(
Color::rgb(0.2, 0.4, 0.5),
Color::rgb(0.4, 0.2, 0.6),
))
.corners(12.0)
.child(text("Circle\nGradient").color(Color::WHITE)),
)
.child(
container()
.padding(12.0)
.gradient(LinearGradient::horizontal(
Color::rgb(0.5, 0.4, 0.2),
Color::rgb(0.6, 0.2, 0.4),
))
.corners(Corners::bevel(12.0))
.child(text("Bevel\nGradient").color(Color::WHITE)),
)
.child(
container()
.padding(12.0)
.gradient(LinearGradient::horizontal(
Color::rgb(0.2, 0.5, 0.4),
Color::rgb(0.4, 0.6, 0.2),
))
.corners(Corners::scoop(12.0))
.child(text("Scoop\nGradient").color(Color::WHITE)),
),
)
.child(
// Row 4: Custom curvature values
container()
.layout(Flex::row().spacing(8.0))
.child(
container()
.padding(12.0)
.background(Color::rgb(0.3, 0.3, 0.4))
.corners(Corners::superellipse(12.0, 0.5))
// K=0.5 → n=1.41
.child(text("K=0.5").color(Color::WHITE)),
)
.child(
container()
.padding(12.0)
.background(Color::rgb(0.3, 0.4, 0.3))
.corners(Corners::superellipse(12.0, 1.5))
// K=1.5 → n=2.83
.child(text("K=1.5").color(Color::WHITE)),
)
.child(
container()
.padding(12.0)
.background(Color::rgb(0.4, 0.3, 0.3))
.corners(Corners::superellipse(12.0, 2.5))
// K=2.5 → n=5.66
.child(text("K=2.5").color(Color::WHITE)),
)
.child(
container()
.padding(12.0)
.background(Color::rgb(0.35, 0.3, 0.4))
.corners(Corners::superellipse(12.0, -0.5))
// K=-0.5 → n=0.707
.child(text("K=-0.5").color(Color::WHITE)),
),
)
},
);
});
}