Struct WidgetContext 

pub struct WidgetContext {
    pub camera: RenderCamera,
    pub viewport_size: Vec2,
    pub cursor_viewport: Vec2,
    pub drag_started: bool,
    pub dragging: bool,
    pub released: bool,
    pub double_clicked: bool,
}

Per-frame input state passed to widget update() methods.

Build this from the ActionFrame and CameraFrame your app already has. Mirrors the shape of crate::ManipulationContext.

Fields

camera: RenderCamera

Camera state for this frame (used for ray construction and drag projection).

viewport_size: Vec2

Viewport width and height in pixels.

cursor_viewport: Vec2

Mouse cursor position relative to the viewport top-left, in pixels.

drag_started: bool

True on the first frame that a left-button drag crosses the egui drag threshold.

dragging: bool

True while the left mouse button is held after crossing the drag threshold.

released: bool

True on the frame the left mouse button is released.

double_clicked: bool

True on the second click within the double-click time window.

Used by PolylineWidget to insert or remove control points. Set from the framework’s double-click event (e.g. egui::Response::double_clicked()). Leave false if the host does not need double-click interactions.

Trait Implementations

impl Clone for WidgetContext

fn clone(&self) -> WidgetContext

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for WidgetContext

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.