Struct ConstraintOverlay 

pub struct ConstraintOverlay<'a> { /* private fields */ }

Constraint visualization overlay widget.

Renders layout constraint information as a visual overlay:

• Red borders for overflow violations (received > max)
• Yellow borders for underflow violations (received < min)
• Green borders for widgets within constraints
• Blue dashed outline showing requested size vs received size
• Labels showing widget name, sizes, and constraint bounds

Implementations

impl<'a> ConstraintOverlay<'a>

pub fn new(debugger: &'a LayoutDebugger) -> Self

Create a new constraint overlay for the given debugger.

pub fn style(self, style: ConstraintOverlayStyle) -> Self

Set custom styling.

Trait Implementations

impl Widget for ConstraintOverlay<'_>

fn render(&self, area: Rect, frame: &mut Frame<'_>)

Render the widget into the frame at the given area.

fn is_essential(&self) -> bool

Whether this widget is essential and should always render.