Struct NodeGraph 

pub struct NodeGraph;

The node-graph widget.

Stateless; all persistent state lives in the caller-owned GraphView.

Implementations

impl NodeGraph

pub fn fit_to_content( view: &mut GraphView, viewer: &dyn GraphViewer, viewport_size: Vec2, padding: f32, ) -> bool

Fit all canvas items into the viewport.

Computes the current world-space content bounds and updates pan and zoom to center them with at least padding screen points where zoom limits allow. Returns false when the graph has no canvas items.

pub fn show( ui: &mut Ui, view: &mut GraphView, viewer: &dyn GraphViewer, paint_chips: impl FnMut(&mut Ui, Rect, &[ChipHit]), ) -> GraphResponse

Render the graph and process this frame’s input.

view holds pan/zoom/positions/selection; viewer supplies the topology to draw. paint_chips is invoked once per node, right after that node’s body is painted, with the canvas rect and the node’s input value chips; the consumer paints an interactive editor over each chip into the passed ui. Painting them inline — on the canvas layer, in z-order, interleaved with the node bodies — lets a raised node’s body cover the editors of anything beneath it, and lets egui route input to the frontmost editor under the pointer (within a layer the last-painted widget wins).