Struct GraphView 

pub struct GraphView { /* private fields */ }

Read-only graph widget: computes (or receives) a Layout and renders cards + canvas-stroke edges with selection, pan and tooltips. See the module docs for the interaction vocabulary and the relayout rule.

Implementations

impl GraphView

pub fn new(desc: GraphDesc) -> GraphView

A view over desc, laid out by the default layered pass.

pub fn algo(self, algo: GraphAlgo) -> GraphView

Select the layout pass (default: layered with default options).

pub fn with_layout(self, layout: Layout) -> GraphView

Render a PRECOMPUTED layout instead of running a pass (the 0430 hand-positioned seam; desc still supplies metadata — labels, kinds, edge styles — via desc_index/id joins).

pub fn style(self, style: GraphStyle) -> GraphView

Explicit resolved ink set (default: derived from the active theme at build).

pub fn selected(self, sig: Signal<Option<String>>) -> GraphView

Controlled selection: bind the selected node id to an external signal (survives rebuilds; an internal signal is used otherwise and resets with the view).

pub fn on_node_press(self, f: impl FnMut(&str) + 'static) -> GraphView

Node activation callback: fires on card click and on Enter over the selected node. Disposal-safe — the callback may dispose the view’s scope.

pub fn badges(self, f: impl Fn(&str) -> Option<String> + 'static) -> GraphView

Reactive badge slot: evaluated per node id inside the card’s render scope, so signal reads make badges live.

pub fn tooltips(self, delay: Duration) -> GraphView

Enable hover tooltips (node label/kind/id) with the given hover delay. Needs an overlay store: inside an App it resolves from context, otherwise pass GraphView::overlays; without either, tooltips are skipped (documented degradation).

pub fn overlays(self, overlays: &Overlays) -> GraphView

Explicit overlay store for tooltips (tests, bare trees).

pub fn offset_x(self, sig: Signal<i32>) -> GraphView

Bind the horizontal pan offset (overflow-honesty affordances: the app can derive “N cells off-screen” from offset + bounds).

pub fn offset_y(self, sig: Signal<i32>) -> GraphView

Bind the vertical pan offset.

pub fn layout(self, layout: LayoutStyle) -> GraphView

Outer layout style (default: a growing column).

pub fn view(self, cx: Scope) -> View

Build the widget. Layout runs HERE (an act, cached in the view); see the module docs for the relayout rule.