Struct Ctx 

pub struct Ctx<'a, A> {
    pub app: &'a mut A,
    pub domains: &'a mut Domains,
    pub views: &'a mut Views,
    pub commands: &'a mut Commands<A>,
    pub results: &'a [CommandResult],
    pub input: &'a Input,
    pub prepared: &'a [PreparedGeometry],
    pub step: Step,
    /* private fields */
}

Fields

app: &'a mut A

domains: &'a mut Domains

views: &'a mut Views

commands: &'a mut Commands<A>

results: &'a [CommandResult]

input: &'a Input

prepared: &'a [PreparedGeometry]

step: Step

Implementations

impl<A: Stores> Ctx<'_, A>

pub fn pick(&self, ndc: [f32; 2]) -> Option<Pick>

pub fn dragging(&self) -> Option<Drag>

pub fn grab(&mut self, ndc: [f32; 2], time: f64) -> Result<Pick, DragError>

pub fn drag( &mut self, ndc: [f32; 2], time: f64, ) -> Result<ChartPoint, DragError>

pub fn release(&mut self) -> Option<DragRelease>

pub fn release_at(&mut self, time: f64) -> Option<DragRelease>

pub fn cancel_drag(&mut self) -> Option<DragRelease>