Struct LayoutEngineRegistry 

pub struct LayoutEngineRegistry { /* private fields */ }

Caller-owned registry of layout engines.

Implementations

impl LayoutEngineRegistry

pub fn new() -> LayoutEngineRegistry

Creates an empty registry.

pub fn insert<E>(&mut self, engine: E) -> Result<(), LayoutError>

where E: LayoutEngine + 'static,

Registers an engine.

pub fn insert_shared( &mut self, engine: Arc<dyn LayoutEngine>, ) -> Result<(), LayoutError>

Registers a shared engine object.

pub fn insert_family( &mut self, family: LayoutFamilyMetadata, ) -> Result<(), LayoutError>

Registers layout family metadata.

pub fn insert_metadata( &mut self, metadata: LayoutEngineMetadata, ) -> Result<(), LayoutError>

Registers layout engine discovery metadata.

pub fn get(&self, id: &LayoutEngineId) -> Option<&dyn LayoutEngine>

Returns an engine by id.

pub fn family(&self, id: &LayoutFamilyId) -> Option<&LayoutFamilyMetadata>

Returns family metadata by id.

pub fn metadata(&self, id: &LayoutEngineId) -> Option<&LayoutEngineMetadata>

Returns engine discovery metadata by engine id.

pub fn engine_ids(&self) -> impl Iterator<Item = &LayoutEngineId>

Returns registered engine ids in deterministic order.

pub fn family_ids(&self) -> impl Iterator<Item = &LayoutFamilyId>

Returns registered family ids in deterministic order.

pub fn families(&self) -> impl Iterator<Item = &LayoutFamilyMetadata>

Returns registered families in deterministic order.

pub fn engine_metadata(&self) -> impl Iterator<Item = &LayoutEngineMetadata>

Returns registered engine metadata in deterministic order.

pub fn engines_for_family( &self, family: &LayoutFamilyId, ) -> impl Iterator<Item = &LayoutEngineMetadata>

Returns engine metadata for one family in deterministic engine-id order.

pub fn layout( &self, graph: &Graph, request: &LayoutEngineRequest, context: &LayoutContext, ) -> Result<LayoutResult, LayoutError>

Runs the engine named by the request.

Trait Implementations

impl Clone for LayoutEngineRegistry

fn clone(&self) -> LayoutEngineRegistry

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for LayoutEngineRegistry

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

Formats the value using the given formatter.

impl Default for LayoutEngineRegistry

fn default() -> LayoutEngineRegistry

Returns the “default value” for a type.