Struct TargetRegion 

pub struct TargetRegion {
    pub rect: Rect,
    pub role: TargetRole,
    pub part: u16,
}

One interactive sub-region of a single widget node.

part is the widget’s own discriminator — an index, or a #[repr(u16)] enum cast — so a consumer that knows the widget can tell the thumb from the track, and one that does not can still measure both.

Fields

rect: Rect

The region’s rectangle, in the same space as the bounds the widget was asked about (absolute arena coordinates for a node’s own bounds).

role: TargetRole

What the region is for, which is what decides the floor it is audited against: Target → target_size, Grab → grab_size, Decoration → not audited.

part: u16

Which part of the widget this is. Meaningful only to the widget that reported it.

Implementations

impl TargetRegion

pub fn target(rect: Rect, part: u16) -> Self

A tappable region.

pub fn grab(rect: Rect, part: u16) -> Self

A draggable grip or divider region.

pub fn decoration(rect: Rect, part: u16) -> Self

A region that is painted but not interactive, reported so an audit can see the whole picture without flagging it.

Trait Implementations

impl Clone for TargetRegion

fn clone(&self) -> TargetRegion

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for TargetRegion

impl Debug for TargetRegion

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

Formats the value using the given formatter.

impl PartialEq for TargetRegion

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for TargetRegion