Struct LayoutEngine 

pub struct LayoutEngine { /* private fields */ }

Configurable layout engine.

Implementations

impl LayoutEngine

pub fn new(mode: LayoutMode) -> Self

Create a new layout engine with the specified mode.

pub fn set_mode(&mut self, mode: LayoutMode)

Set the layout mode.

pub fn mode(&self) -> &LayoutMode

Get the current layout mode.

pub fn compute_layout( &mut self, tree: &UiTree, viewport_size: Size<f32>, widget_registry: &WidgetTypeRegistry, )

Compute layout for the tree.

In synchronous mode, this blocks until layout is complete. In async mode, this queues a layout request and returns immediately.

pub fn poll_results(&mut self) -> usize

Poll for async layout results.

Returns the number of results processed.

pub fn get_layout(&self, node_id: NodeId) -> Option<LayoutRect>

Get layout for a node.

In async mode, this may return a slightly stale layout.

pub fn is_layout_current(&self) -> bool

Check if layout is current (not stale).

pub fn is_layout_in_progress(&self) -> bool

Check if async layout is in progress.

pub fn frames_stale(&self) -> u64

Get the number of frames layout is stale by.

pub fn clear(&mut self)

Clear the layout cache.

Trait Implementations

impl Default for LayoutEngine

fn default() -> Self

Returns the “default value” for a type.

impl Drop for LayoutEngine

fn drop(&mut self)

Executes the destructor for this type.