Struct NodesState

pub struct NodesState {
    pub offset: Vec2,
    pub zoom: f32,
    pub selection: Vec<u64>,
    pub linking: Option<(u64, usize, bool)>,
    pub dragging: Option<u64>,
    pub detach: Option<(u64, usize)>,
    pub band: Option<(Pos2, bool)>,
    pub clipboard: (Vec<Node>, Vec<Edge>),
    pub menu_at: Option<(f32, f32)>,
    pub thumbs: HashMap<u64, TextureId>,
}

Fields

offset: Vec2

Pan/zoom of the canvas.

zoom: f32

selection: Vec<u64>

The picked nodes; the last one is what the Inspector follows (primary).

linking: Option<(u64, usize, bool)>

A connection being dragged: (node, port, from_output).

dragging: Option<u64>

The node under the pointer while moving (one undo per gesture; the selection travels with it).

detach: Option<(u64, usize)>

Input port a wire is being pulled off, until the pointer actually leaves it.

band: Option<(Pos2, bool)>

Rubber band in progress: (press origin in screen space, add instead of replace).

clipboard: (Vec<Node>, Vec<Edge>)

Ctrl+C copy: the nodes and the edges between them, pasted with fresh ids.

menu_at: Option<(f32, f32)>

Where the canvas was right-clicked, in graph units: new nodes land there.

thumbs: HashMap<u64, TextureId>

Live previews, keyed by node. Empty unless a renderer hands textures over, and the panel is fully usable without them (there is no GL context in tests or headless runs).

Implementations

impl NodesState

pub fn primary(&self) -> Option<u64>

The node the Inspector shows: the most recently picked one.

fn pick(&mut self, id: u64, add: bool)

Pick a node; add (Ctrl) toggles it in the selection instead of replacing it.

Trait Implementations

impl Default for NodesState

fn default() -> NodesState

Returns the “default value” for a type.