Struct DepGraphView 

pub struct DepGraphView {
    pub title: String,
    pub nodes: Vec<DepNode>,
    pub edges: Vec<DepEdge>,
    /* private fields */
}

The layered dep-graph viewer. Implements [Facet].

Fields

title: String

nodes: Vec<DepNode>

edges: Vec<DepEdge>

Implementations

impl DepGraphView

pub fn new(nodes: Vec<DepNode>, edges: Vec<DepEdge>) -> Self

pub fn state(&self) -> &DepGraphState

FC-3 — read the complete observable interaction state.

pub fn selected(&self) -> Option<&str>

The currently-selected node’s stable label, if any.

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

pub fn select(&mut self, node: Option<String>)

Drill into a node by its stable label (or None to clear). A thin wrapper over the FC-2 update mutation path (the sole way the Model changes): deterministic (a set, never a toggle).

pub fn update(&mut self, msg: Msg) -> Vec<Effect>

FC-2 / FC-8 — the single mutation path. Apply one Msg; returns the (always empty) Effects the host should run. The canvas node-box click routes its Msg here too, so live == headless.

pub fn columns(&self) -> Vec<usize>

Column index per node — toposort, deps first (left). Longest-path layering so a dependent sits right of all its deps. Cycle → best effort.

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

Paint the graph, returning the Msgs the clicks produced. A thin wrapper over the pure view that applies them (kept for direct callers).

pub fn view(&self, ui: &mut Ui) -> Vec<Msg>

FC-9 render — a pure function of &self: it paints the boxes/arrows + the drill-down panel and returns the Msgs the node clicks produced. It MUST NOT mutate the DepGraphState; the impl_facet_via_elm! bridge applies the returned messages through update.

impl DepGraphView

pub fn copy_text(&self) -> Option<String>

The copyable text: the selected node’s label (+ sublabel) when one is selected, else every node label, one per line.

Trait Implementations

impl CopySource for DepGraphView

fn copy_kinds(&self) -> &[ClipKind]

The kinds this source can offer, richest first.

fn copy_payload(&self) -> Option<ClipPayload>

Produce the payload for the current selection (richest representation).

impl Elm for DepGraphView

type Model = DepGraphState

All observable state, in one serializable struct (FC-1 / FC-3).

type Msg = Msg

Every input the component accepts (FC-2). The only legal way to mutate the Model.

type Effect = Effect

Side work as data (FC-8). Use enum Effect {} when the component does no I/O.

fn title(&self) -> &str

The deck keys facets off this (mirrors Facet::title).

fn state(&self) -> &DepGraphState

FC-3 — read the complete observable state at any frame boundary.

fn update(&mut self, msg: Msg) -> Vec<Effect>

FC-2 / FC-8 — the single mutation path. Apply one Msg; return the Effects the host should run (empty = nothing to do).

fn view(&self, ui: &mut Ui) -> Vec<Msg>

FC-9 / FC-4 — a pure function of &self: it paints and returns the Msgs it produced. It MUST NOT mutate the model or do I/O; the Facet::ui bridge applies the returned messages through update.

impl Facet for DepGraphView

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

FC-9: the view is pure (paints + emits Msgs); FC-2: mutation only via update. The immediate-mode trait just bridges the two.

fn caps(&self) -> FacetCaps

Boxes/arrows/labels are painted from the active [Theme]; a node can be click-selected (drives the drill-down panel); the layered canvas takes the host’s available_size.

fn title(&self) -> &str

fn state_json(&self) -> Value

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 selection_json(&self) -> Value

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

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 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).

fn kind(&self) -> &'static str

Stable component-type id (e.g. "jobview", "graphpan", "table"). Two instances with the same kind can exchange portable state; the empty default "" means opted out of cross-instance clone.

fn portable_state(&self) -> Option<Value>

The portable subset of this facet’s state — the fields a same-kind sibling can adopt. None = not cloneable. Kept SEPARATE from state_json (the introspection dump, which may carry derived / render-only data) so this stays round-trippable through load_state.

fn load_state(&mut self, _state: &Value) -> bool

Adopt a portable state produced by portable_state on a same-kind sibling. Returns true if accepted. Default false (opt-in per component).