Struct Layout 

pub struct Layout { /* private fields */ }

Compositional layout widget.

Example

Layout::rows([
    LayoutItem::new(header).fixed(1),
    Layout::columns([
        LayoutItem::new(sidebar).percent(25.0),
        LayoutItem::new(content).expanded(),
    ]).into_item().expanded(),
    LayoutItem::new(footer).fixed(1),
])

Implementations

impl Layout

pub fn rows(items: impl IntoIterator<Item = LayoutItem>) -> Self

Create a vertical layout (rows stacked top to bottom).

pub fn columns(items: impl IntoIterator<Item = LayoutItem>) -> Self

Create a horizontal layout (columns side by side).

pub fn into_item(self) -> LayoutItem

Convert this layout into a LayoutItem for nesting.

pub fn push(&mut self, item: LayoutItem)

Add a child item.

pub fn len(&self) -> usize

Get child count.

pub fn is_empty(&self) -> bool

Check if empty.

Trait Implementations

impl Brick for Layout

fn brick_name(&self) -> &'static str

Get the brick’s unique type name

fn assertions(&self) -> &[BrickAssertion]

Get all assertions for this brick

fn budget(&self) -> BrickBudget

Get the performance budget

fn verify(&self) -> BrickVerification

Verify all assertions against current state

fn to_html(&self) -> String

Generate HTML for this brick (WASM target)

fn to_css(&self) -> String

Generate CSS for this brick (WASM target)

fn test_id(&self) -> Option<&str>

Get the test ID for DOM queries

fn can_render(&self) -> bool

Check if this brick can be rendered (all assertions pass)

impl Debug for Layout

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

Formats the value using the given formatter.

impl Widget for Layout

fn type_id(&self) -> TypeId

Get the type identifier for this widget type.

fn measure(&self, constraints: Constraints) -> Size

Compute intrinsic size constraints.

fn layout(&mut self, bounds: Rect) -> LayoutResult

Position children within allocated bounds.

fn paint(&self, canvas: &mut dyn Canvas)

Generate draw commands for rendering.

fn event(&mut self, event: &Event) -> Option<Box<dyn Any + Send>>

Handle input events.

fn children(&self) -> &[Box<dyn Widget>]

Get child widgets for tree traversal.

fn children_mut(&mut self) -> &mut [Box<dyn Widget>]

Get mutable child widgets.

fn is_interactive(&self) -> bool

Check if this widget is interactive (can receive focus/events).

fn is_focusable(&self) -> bool

Check if this widget can receive keyboard focus.

fn accessible_name(&self) -> Option<&str>

Get the accessible name for screen readers.

fn accessible_role(&self) -> AccessibleRole

Get the accessible role.

fn test_id(&self) -> Option<&str>

Get the test ID for this widget (if any).

fn bounds(&self) -> Rect

Get the current bounds of this widget.