Struct SystemChart 

pub struct SystemChart {
    pub title: String,
    pub nodes: Vec<SysNode>,
    pub edges: Vec<SysEdge>,
    /* private fields */
}

The system-map chart: nodes + edges + the current selection.

Fields

title: String

nodes: Vec<SysNode>

edges: Vec<SysEdge>

Implementations

impl SystemChart

pub const NODE_R: f32 = NODE_R

The node radius (px) the free-position layout pads the canvas by, exposed so the matrix can assert nodes land inside rect by exactly this inset.

pub fn new( title: impl Into<String>, nodes: Vec<SysNode>, edges: Vec<SysEdge>, ) -> Self

pub fn with_canvas_height(self, h: f32) -> Self

pub fn select(&mut self, id: &str)

Select a node by id (headless-test + host entry point). Selecting the already-selected node deselects it. Unknown id is a no-op.

pub fn clear_selection(&mut self)

Clear the selection.

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

The selected node’s id, if any.

pub fn set_badge(&mut self, id: &str, badge: u64)

Update a node’s badge by id (e.g. a live event count). No-op if unknown.

pub fn set_detail(&mut self, id: &str, detail: impl Into<String>)

Update a node’s detail text by id. No-op if unknown.

pub fn node_center(&self, i: usize, rect: Rect) -> Pos2

Test/host hook (additive). The public, return-asserted view of the private center layout node — the absolute pixel centre node i’s circle is painted at inside rect. Exposed so the syschart call-chain matrix can assert the layout/place stage (finite, confined to the padded inner rect, monotone in the normalized pos) without a painter. Calls the same private fn ui paints with — additive, no behaviour change. The node radius the layout pads for is SystemChart::NODE_R.

impl SystemChart

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

The copyable text: the selected node’s label · detail (badge in a suffix) when a node is selected, else the whole node list as a TSV rectangle (id \t label \t badge).

Trait Implementations

impl CopySource for SystemChart

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 Facet for SystemChart

fn caps(&self) -> FacetCaps

Painted with the active Theme (nodes/edges/text/accent ring), and its canvas takes the host’s available width — themeable + resizable.

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

Opt into typed downcast so a host (e.g. the demo’s robot-UI node-select toolbar) can forward a selection to SystemChart::select when this chart lives boxed inside a FacetDeck.

fn title(&self) -> &str

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

fn state_json(&self) -> Value

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 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).