Enum DirtyFlag 

pub enum DirtyFlag {
    None,
    Paint,
    Layout,
}

Represents the invalidation state of a layout node.

The states are ordered by severity, allowing for easy “upgrading” of the dirty state. A node marked for Layout does not also need to be marked for Paint.

Because this enum derives PartialOrd and Ord, you can directly compare variants:

• DirtyFlag::Layout > DirtyFlag::Paint is true
• DirtyFlag::Paint >= DirtyFlag::None is true
• DirtyFlag::Paint < DirtyFlag::Layout is true

Variants

None

The node’s layout is valid and no repaint is needed. This is the “clean” state.

Paint

The node’s geometry is valid, but its appearance (e.g., color) has changed. Requires a display list update only.

Layout

The node’s geometry (size or position) is invalid. Requires a full layout pass and a display list update.

Trait Implementations

impl Clone for DirtyFlag

fn clone(&self) -> DirtyFlag

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for DirtyFlag

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

Formats the value using the given formatter.

impl Default for DirtyFlag

fn default() -> DirtyFlag

Returns the “default value” for a type.

impl Ord for DirtyFlag

fn cmp(&self, other: &DirtyFlag) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq for DirtyFlag

fn eq(&self, other: &DirtyFlag) -> 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 PartialOrd for DirtyFlag

fn partial_cmp(&self, other: &DirtyFlag) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

Tests less than (for self and other) and is used by the < operator.

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

Tests less than or equal to (for self and other) and is used by the <= operator.

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

Tests greater than (for self and other) and is used by the > operator.

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

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl Copy for DirtyFlag

impl Eq for DirtyFlag

impl StructuralPartialEq for DirtyFlag