Crate facett_graph 

facett-graph — the graph (node/edge) viewer component, on facett_core. Build a Scene from a labelled edge list (the common shape: a graph query, a dataflow DAG) and draw it. Source-agnostic — the caller turns its Arrow/Cypher/whatever into edges first.

Modules

theme

Theming. A palette the custom-painted components (graph/depgraph/map) read from the egui context, plus matching egui Visuals for the standard widgets (pop/table/pipeline). Call set_theme once on the context and every facet follows. Ships a Theme::default look, a Theme::sci_fi neon-on-near-black look, and a switchable family of striking palettes (Theme::nordic_aurora, Theme::cyberpunk_neon, Theme::amber_crt, Theme::deep_space, Theme::hugin_noir). Enumerate them with Theme::ALL / Theme::by_name to build a picker.

Structs

DepEdge

A directed edge from → to, with the connecting items shown on the arrow.

DepGraphView

The layered dep-graph viewer. Implements Facet.

DepNode

One node: a label, an optional sub-label (a sha, a version…), and a border colour (the consumer’s status policy).

Edge

A directed edge between node indices.

FacetCaps

What a Facet can do, so hosts treat every component uniformly. All-false by default: a facet opts in to each capability it actually honors.

GraphView

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

Node

A node: a label + a colour (the consumer picks the colour policy — hash by label, by status, …).

Scene

A drawable graph: nodes + edges (edges index into nodes).

Theme

The facett palette. All custom-painted colours come from here.

Enums

Layout

Node placement strategy.

Traits

Facet

The facett component contract. Every facet — graph, map, pipeline, table, the ported nornir viewers — implements this, so consumers (korp, nornir, …) compose them uniformly and get headless robot-testing for free.

Functions

draw

Draw a Scene into ui — the reusable render primitive. Empty scenes show empty_hint. Labels render when the node count is small enough to read.

draw_arrow

Line + arrowhead from from to to (head pulled back by half a node width).

hash_color

A stable, bright-ish colour from a string (FNV-1a). Handy default node colour.

scene_from_labeled_edges

Build a Scene from a labelled edge list — each row is (src_id, dst_id, src_label, dst_label). Distinct ids become nodes, coloured per label (FNV-hashed). The reusable “graph from edges” adapter korp’s Graph and Pipelines views both want.

set_theme

Store theme on the context and apply its egui Visuals. Call once per frame (cheap) or whenever the theme changes; every facet picks it up.

theme

The theme stored on the ui’s context (or Theme::default if none).