Struct druid::tests::helpers::ModularWidget

pub struct ModularWidget<S, T> { /* private fields */ }

A widget that can be constructed from individual functions, builder-style.

This widget is generic over its state, which is passed in at construction time.

Implementations

impl<S, T> ModularWidget<S, T>

pub fn new(state: S) -> Self

pub fn event_fn( self, f: impl FnMut(&mut S, &mut EventCtx<'_, '_>, &Event, &mut T, &Env) + 'static ) -> Self

pub fn lifecycle_fn( self, f: impl FnMut(&mut S, &mut LifeCycleCtx<'_, '_>, &LifeCycle, &T, &Env) + 'static ) -> Self

pub fn update_fn( self, f: impl FnMut(&mut S, &mut UpdateCtx<'_, '_>, &T, &T, &Env) + 'static ) -> Self

pub fn layout_fn( self, f: impl FnMut(&mut S, &mut LayoutCtx<'_, '_>, &BoxConstraints, &T, &Env) -> Size + 'static ) -> Self

pub fn paint_fn( self, f: impl FnMut(&mut S, &mut PaintCtx<'_, '_, '_>, &T, &Env) + 'static ) -> Self

Trait Implementations

impl<S, T: Data> Widget<T> for ModularWidget<S, T>

fn event( &mut self, ctx: &mut EventCtx<'_, '_>, event: &Event, data: &mut T, env: &Env )

Handle an event.

fn lifecycle( &mut self, ctx: &mut LifeCycleCtx<'_, '_>, event: &LifeCycle, data: &T, env: &Env )

Handle a life cycle notification.

fn update(&mut self, ctx: &mut UpdateCtx<'_, '_>, old_data: &T, data: &T, env: &Env)

Update the widget’s appearance in response to a change in the app’s Data or Env.

fn layout( &mut self, ctx: &mut LayoutCtx<'_, '_>, bc: &BoxConstraints, data: &T, env: &Env ) -> Size

Compute layout.

fn paint(&mut self, ctx: &mut PaintCtx<'_, '_, '_>, data: &T, env: &Env)

Paint the widget appearance.

fn compute_max_intrinsic( &mut self, axis: Axis, ctx: &mut LayoutCtx<'_, '_>, bc: &BoxConstraints, data: &T, env: &Env ) -> f64

Computes max intrinsic/preferred dimension of a widget on the provided axis.