Enum SubgraphBorder 

#[non_exhaustive]
pub enum SubgraphBorder {
    Double,
    Light,
    Dashed,
    None,
}

Subgraph (cluster) box border style.

None is not “invisible cluster” — the box still groups its nodes for layout and its label still paints; only the border ink is suppressed.

use ascii_dag::{Graph, RenderOptions};
use ascii_dag::render::engine::{SubgraphBorder, SubgraphStyle, SubgraphStyleCtx};

fn borderless(_ctx: SubgraphStyleCtx<'_>) -> SubgraphStyle {
    SubgraphStyle { border: SubgraphBorder::None, ..SubgraphStyle::default() }
}

let mut g = Graph::new();
g.add_node(1, "A");
g.add_node(2, "B");
g.add_edge(1, 2, None);
let sg = g.add_subgraph("Group");
g.put_nodes(&[1]).inside(sg).unwrap();

let mut options = RenderOptions::plain();
options.plan.subgraph_style_fn = borderless;
let text = g.compute_layout().render_string(&options);
assert!(!text.contains('╔'));      // no border ink
assert!(text.contains("Group"));   // label still there

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

Double

Double strokes (═ ║) — the default (legacy).

Light

Light strokes (─ │).

Dashed

Dashed strokes (┈ ┊).

None

No border — the cluster groups its nodes without ink (its label still paints when it fits).

Trait Implementations

impl Clone for SubgraphBorder

fn clone(&self) -> SubgraphBorder

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for SubgraphBorder

impl Debug for SubgraphBorder

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

Formats the value using the given formatter.

impl Default for SubgraphBorder

fn default() -> SubgraphBorder

Returns the “default value” for a type.

impl Eq for SubgraphBorder

impl PartialEq for SubgraphBorder

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for SubgraphBorder