Struct GraphView 

pub struct GraphView {
    pub scene: Scene,
    pub layout: Layout,
    pub empty_hint: String,
    pub title: String,
}

A simple graph-view widget: a Scene + a Layout. Implements Facet, so it drops into a FacetDeck and exposes state_json for free.

Fields

scene: Scene

layout: Layout

empty_hint: String

title: String

Implementations

impl GraphView

pub fn new(scene: Scene) -> Self

pub fn empty_hint(self, hint: impl Into<String>) -> Self

pub fn with_title(self, title: impl Into<String>) -> Self

pub fn show(&self, ui: &mut Ui)

pub fn label_counts(&self) -> BTreeMap<String, usize>

Per-label node counts (for the introspection).

Trait Implementations

impl Facet for GraphView

fn caps(&self) -> FacetCaps

Painted via draw, which reads the active Theme (edges/labels/empty hint) from the context; its canvas takes the host’s available_size.

fn title(&self) -> &str

fn ui(&mut self, ui: &mut Ui)

fn state_json(&self) -> Value

fn scale(&self) -> f32

Current uniform scale (1.0 = native). Override if caps().scalable.

fn set_scale(&mut self, _scale: f32)

Set the uniform scale; clamp internally. Default no-op (not scalable).

fn selection_json(&self) -> Value

The current selection as JSON (also folded into state_json by convention). Null when nothing/none selectable.

fn copy(&mut self) -> Option<String>

Clipboard hooks — see clipboard.rs. Defaults: nothing to give/take. Returns the text to place on the clipboard (None = nothing copyable now).

fn cut(&mut self) -> Option<String>

Like copy, but also removes the selection. Default delegates to copy.

fn paste(&mut self, _text: &str) -> bool

Accept pasted text. Returns true if consumed.

fn as_any_mut(&mut self) -> Option<&mut (dyn Any + 'static)>

Optional downcast handle for hosts that need typed access to a specific facet living inside a FacetDeck (e.g. a robot-UI driver clicking an app-level control that must forward to a concrete component’s own API). Defaulted to None so no existing facet has to change; a component opts in by returning Some(self).