Trait RenderCustomClip 

pub trait RenderCustomClip<T: Clone + 'static>: RenderProxyBoxMixin {
    // Required methods
    fn custom_clip_data(
        self: RenderHandle<Self>,
        app: &App,
    ) -> &RenderCustomClipData<T>;
    fn custom_clip_data_mut(
        self: RenderHandle<Self>,
        app: &mut App,
    ) -> &mut RenderCustomClipData<T>;
    fn default_clip(self: RenderHandle<Self>, app: &App) -> T;

    // Provided methods
    fn clipper(
        self: RenderHandle<Self>,
        app: &App,
    ) -> Option<Rc<dyn CustomClipper<T>>> { ... }
    fn set_clipper(
        self: RenderHandle<Self>,
        app: &mut App,
        new_clipper: Option<Rc<dyn CustomClipper<T>>>,
    ) { ... }
    fn did_attach(self: RenderHandle<Self>, app: &mut App) { ... }
    fn did_detach(self: RenderHandle<Self>, app: &mut App) { ... }
    fn mark_needs_clip(self: RenderHandle<Self>, app: &mut App) { ... }
    fn clip_listener(self: RenderHandle<Self>) -> Listener { ... }
    fn clip_behavior(self: RenderHandle<Self>, app: &App) -> Clip { ... }
    fn set_clip_behavior(self: RenderHandle<Self>, app: &mut App, value: Clip) { ... }
    fn perform_layout(self: RenderHandle<Self>, app: &mut App) { ... }
    fn update_clip(self: RenderHandle<Self>, app: &mut App) { ... }
    fn clip(self: RenderHandle<Self>, app: &App) -> T { ... }
}

A base class for render boxes that clip their child.

Flutter’s private _RenderCustomClip<T>: the shared bodies of a clip. A leaf implements default_clip, holds a RenderCustomClipData<T>, and calls these where Dart would run the inherited method: RenderCustomClip::perform_layout(self, app).

Required Methods

fn custom_clip_data( self: RenderHandle<Self>, app: &App, ) -> &RenderCustomClipData<T>

Mixin field access.

fn custom_clip_data_mut( self: RenderHandle<Self>, app: &mut App, ) -> &mut RenderCustomClipData<T>

See custom_clip_data.

fn default_clip(self: RenderHandle<Self>, app: &App) -> T

The clip to use when clipper is None.

Provided Methods

fn clipper( self: RenderHandle<Self>, app: &App, ) -> Option<Rc<dyn CustomClipper<T>>>

If non-None, determines which clip to use on the child.

fn set_clipper( self: RenderHandle<Self>, app: &mut App, new_clipper: Option<Rc<dyn CustomClipper<T>>>, )

Sets clipper.

fn did_attach(self: RenderHandle<Self>, app: &mut App)

Flutter’s attach after super.attach(owner).

fn did_detach(self: RenderHandle<Self>, app: &mut App)

Flutter’s detach before super.detach().

fn mark_needs_clip(self: RenderHandle<Self>, app: &mut App)

Flutter’s _markNeedsClip.

fn clip_listener(self: RenderHandle<Self>) -> Listener

The _markNeedsClip tear-off, equal to itself across registrations.

fn clip_behavior(self: RenderHandle<Self>, app: &App) -> Clip

Whether and how to clip the child.

fn set_clip_behavior(self: RenderHandle<Self>, app: &mut App, value: Clip)

Sets clip_behavior.

fn perform_layout(self: RenderHandle<Self>, app: &mut App)

Flutter’s performLayout: a resize drops the cached clip.

fn update_clip(self: RenderHandle<Self>, app: &mut App)

Flutter’s _updateClip: computes the clip if it is not cached.

fn clip(self: RenderHandle<Self>, app: &App) -> T

The cached clip. Call update_clip first; Dart’s _clip!.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors

impl RenderCustomClip<Arc<Path>> for RenderClipPath

impl RenderCustomClip<RRect> for RenderClipRRect

impl RenderCustomClip<RSuperellipse> for RenderClipRSuperellipse

impl RenderCustomClip<Rect> for RenderClipOval

impl RenderCustomClip<Rect> for RenderClipRect