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    This version of the module is deprecated: Moved to moonbit-community/diago. Use moonbit-community/diago@0.4.0 or later and update import paths.

    Milky2018/diago/engine_api does not have a README file

    LayoutEngine

    source
    pub(open) trait LayoutEngine {
      layout(Self, 
    GraphInput    , LayoutConfig, Direction) -> 
    LayoutPatch     raise LayoutError
      engine_name(Self) -> String
      features(Self) -> Array[LayoutFeature]
    }

    Layout engine interface.

    Engines must not mutate their input graph. They return a patch that can be applied by the caller.

    LayoutError

    source
    pub(all) suberror LayoutError {
      InvalidGraph(String)
      CycleDetected(String)
      Unsupported(String)
    } derive(Eq, 
    Debug    )

    Layout error
    impl Show for LayoutError

    Direction

    source
    pub(all) enum Direction {
      Down
      Right
      Up
      Left
    } derive(Eq, 
    Debug    )

    Layout direction
    impl Show for Direction

    LayoutConfig

    source
    pub struct LayoutConfig {
      horizontal_spacing : Double
      vertical_spacing : Double
      container_padding : Double
      default_width : Double
      default_height : Double
      edge_padding : Double
    } derive(
    Debug    )

    Layout configuration

    LayoutConfig::new

    source

    LayoutConfig::with_spacing

    source
    fn LayoutConfig::with_spacing(horizontal : Double, vertical : Double) -> LayoutConfig

    LayoutFeature

    source
    pub(all) enum LayoutFeature {
      NearObject
      ContainerDimensions
      TopLeft
      DescendantEdges
    } derive(Eq, 
    Debug    )

    Layout engine capability flags aligned with the reference's layout feature model.

    cycle_detected

    source
    fn cycle_detected(message : String) -> LayoutError

    estimate_root_grid_child_boxes

    source
    fn estimate_root_grid_child_boxes(parent : 
    ObjectInput    , child_ids : Array[String], child_size_by_id : Map[String, (Double, Double)]) -> Map[String, 
    Box    ]?

    invalid_graph

    source
    fn invalid_graph(message : String) -> LayoutError

    Construct an engine_api.LayoutError from outside this package.

    layout_with_engine

    source
    fn[Engine : LayoutEngine] layout_with_engine(engine : Engine, graph : 
    GraphInput    , config : LayoutConfig, direction : Direction) -> 
    GraphInput     raise LayoutError

    Perform layout on a graph (including variants) with a specific engine.

    Returns a new graph with layout applied.

    unsupported

    source
    fn unsupported(message : String) -> LayoutError

    Source Files

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