Enum Shape 

pub enum Shape {
    RoundedRectangle {
        top_left: Dp,
        top_right: Dp,
        bottom_right: Dp,
        bottom_left: Dp,
        g2_k_value: f32,
    },
    Ellipse,
    HorizontalCapsule,
    VerticalCapsule,
}

Shape definitions for UI components

Shape is used by multiple components (surface, fluid_glass, sliders, progress, buttons) to define:

• Visual outline (fill / border / highlight pipelines)
• Interaction & ripple hit-testing region
• Automatic corner radius derivation for capsule variants

Variants

• Shape::RoundedRectangle – Independent corner radii + g2_k_value curvature control
• Shape::Ellipse – Ellipse filling the component bounds
• Shape::HorizontalCapsule – Pill where corner radius = height / 2 (resolved at render)
• Shape::VerticalCapsule – Pill where corner radius = width / 2 (resolved at render)

Capsule variants are convenience markers; they are internally converted into a rounded rectangle whose four radii equal half of the minor axis (height for horizontal, width for vertical).

Example

use tessera_ui::dp::Dp;
use tessera_ui_basic_components::shape_def::Shape;

// Explicit rounded rectangle
let rr = Shape::RoundedRectangle {
    top_left: Dp(8.0),
    top_right: Dp(8.0),
    bottom_right: Dp(8.0),
    bottom_left: Dp(8.0),
    g2_k_value: 3.0,
};

// Ellipse
let ellipse = Shape::Ellipse;

// Capsules (auto radius from minor axis)
let h_capsule = Shape::HorizontalCapsule;
let v_capsule = Shape::VerticalCapsule;

Variants

RoundedRectangle

Rounded rectangle with independent corner radii and a curvature factor:

• g2_k_value controls the transition curve (G2 continuity parameter).

Fields

top_left: Dp

top_right: Dp

bottom_right: Dp

bottom_left: Dp

g2_k_value: f32

Ellipse

Ellipse fitting the component bounds.

HorizontalCapsule

Horizontal capsule (pill) – rendered as a rounded rectangle whose corner radius is computed as height / 2.0 at draw time.

VerticalCapsule

Vertical capsule (pill) – rendered as a rounded rectangle whose corner radius is computed as width / 2.0 at draw time.

Implementations

impl Shape

pub const RECTANGLE: Self

A pure rectangle shape with no rounded corners.

pub const fn rounded_rectangle(radius: Dp) -> Self

A Quick helper to create a uniform rounded rectangle shape.

Example

use tessera_ui::dp::Dp;
use tessera_ui_basic_components::shape_def::Shape;
let shape = Shape::rounded_rectangle(Dp(8.0));
assert_eq!(shape, Shape::RoundedRectangle { top_left: Dp(8.0), top_right: Dp(8.0), bottom_right: Dp(8.0), bottom_left: Dp(8.0), g2_k_value: 3.0 });

Trait Implementations

impl Clone for Shape

fn clone(&self) -> Shape

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Shape

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for Shape

fn default() -> Self

Returns the default shape, which is a rectangle with zero corner radius.

Example

use tessera_ui::dp::Dp;
use tessera_ui_basic_components::shape_def::Shape;
let default_shape = Shape::default();
assert_eq!(default_shape, Shape::RoundedRectangle { top_left: Dp(0.0), top_right: Dp(0.0), bottom_right: Dp(0.0), bottom_left: Dp(0.0), g2_k_value: 3.0 });

impl PartialEq for Shape

fn eq(&self, other: &Shape) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for Shape

impl StructuralPartialEq for Shape