Struct LayoutState 

pub struct LayoutState {
    pub role: LayoutRole,
    pub computed: Option<Rect>,
    pub layout_dirty: bool,
}

Optional layout state on an [ObjectNode] (LPAR-10 §5.A).

Lazily allocated via ObjectNode::set_layout_flex, ObjectNode::set_layout_grid, or ObjectNode::set_item_hints. Non-layout nodes never pay for this allocation.

Fields

role: LayoutRole

The layout role of this node.

computed: Option<Rect>

Layout-computed bounds override written by run_layout.

None for nodes not under an active layout container.

layout_dirty: bool

Set when this container’s configuration or any child hint changes; cleared by run_layout after the container is processed.

Trait Implementations

impl Clone for LayoutState

fn clone(&self) -> LayoutState

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for LayoutState

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

Formats the value using the given formatter.

impl Default for LayoutState

fn default() -> Self

Returns the “default value” for a type.

impl Eq for LayoutState

impl PartialEq for LayoutState

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for LayoutState