Trait RenderProxyBoxMixin 

pub trait RenderProxyBoxMixin: RenderObjectWithChildMixin<ChildType = AnyRenderBox> + RenderBox {
    // Provided methods
    fn setup_parent_data(
        self: RenderHandle<Self>,
        app: &mut App,
        child: AnyRenderObject,
    ) { ... }
    fn apply_paint_transform(
        self: RenderHandle<Self>,
        app: &App,
        child: AnyRenderObject,
        transform: &mut Matrix4,
    ) { ... }
    fn compute_min_intrinsic_width(
        self: RenderHandle<Self>,
        app: &mut App,
        height: f64,
    ) -> f64 { ... }
    fn compute_max_intrinsic_width(
        self: RenderHandle<Self>,
        app: &mut App,
        height: f64,
    ) -> f64 { ... }
    fn compute_min_intrinsic_height(
        self: RenderHandle<Self>,
        app: &mut App,
        width: f64,
    ) -> f64 { ... }
    fn compute_max_intrinsic_height(
        self: RenderHandle<Self>,
        app: &mut App,
        width: f64,
    ) -> f64 { ... }
    fn compute_distance_to_actual_baseline(
        self: RenderHandle<Self>,
        app: &mut App,
        baseline: TextBaseline,
    ) -> Option<f64> { ... }
    fn compute_dry_baseline(
        self: RenderHandle<Self>,
        app: &mut App,
        constraints: BoxConstraints,
        baseline: TextBaseline,
    ) -> Option<f64> { ... }
    fn compute_dry_layout(
        self: RenderHandle<Self>,
        app: &mut App,
        constraints: BoxConstraints,
    ) -> Size { ... }
    fn perform_layout(self: RenderHandle<Self>, app: &mut App) { ... }
    fn compute_size_for_no_child(
        self: RenderHandle<Self>,
        _app: &App,
        constraints: BoxConstraints,
    ) -> Size { ... }
    fn hit_test_children(
        self: RenderHandle<Self>,
        app: &mut App,
        result: &mut BoxHitTestResult<'_>,
        position: Offset,
    ) -> bool { ... }
    fn paint(
        self: RenderHandle<Self>,
        app: &mut App,
        context: &mut PaintingContext,
        offset: Offset,
    ) { ... }
}

A base class for render boxes that resemble their children.

Flutter’s RenderProxyBoxMixin: the shared bodies of a proxy box. A leaf implements the marker and calls these where Dart would run the inherited method: RenderProxyBoxMixin::perform_layout(self, app).

Provided Methods

fn setup_parent_data( self: RenderHandle<Self>, app: &mut App, child: AnyRenderObject, )

A proxy child gets plain parent data, not crate::BoxParentData.

fn apply_paint_transform( self: RenderHandle<Self>, app: &App, child: AnyRenderObject, transform: &mut Matrix4, )

A proxy paints its child at its own offset: no transform to apply.

fn compute_min_intrinsic_width( self: RenderHandle<Self>, app: &mut App, height: f64, ) -> f64

The child’s minimum intrinsic width, or 0 without a child.

fn compute_max_intrinsic_width( self: RenderHandle<Self>, app: &mut App, height: f64, ) -> f64

The child’s maximum intrinsic width, or 0 without a child.

fn compute_min_intrinsic_height( self: RenderHandle<Self>, app: &mut App, width: f64, ) -> f64

The child’s minimum intrinsic height, or 0 without a child.

fn compute_max_intrinsic_height( self: RenderHandle<Self>, app: &mut App, width: f64, ) -> f64

The child’s maximum intrinsic height, or 0 without a child.

fn compute_distance_to_actual_baseline( self: RenderHandle<Self>, app: &mut App, baseline: TextBaseline, ) -> Option<f64>

The child’s baseline, or none without a child.

fn compute_dry_baseline( self: RenderHandle<Self>, app: &mut App, constraints: BoxConstraints, baseline: TextBaseline, ) -> Option<f64>

The child’s dry baseline, or none without a child.

fn compute_dry_layout( self: RenderHandle<Self>, app: &mut App, constraints: BoxConstraints, ) -> Size

The child’s dry layout at this box’s constraints, or compute_size_for_no_child.

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

Lays the child out with this box’s constraints and takes its size.

fn compute_size_for_no_child( self: RenderHandle<Self>, _app: &App, constraints: BoxConstraints, ) -> Size

Calculate the size the proxy box would have when it has no child.

fn hit_test_children( self: RenderHandle<Self>, app: &mut App, result: &mut BoxHitTestResult<'_>, position: Offset, ) -> bool

Hit tests the child at this box’s position.

fn paint( self: RenderHandle<Self>, app: &mut App, context: &mut PaintingContext, offset: Offset, )

Paints the child at this box’s offset.

Dyn Compatibility

This trait is not dyn compatible.

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

Implementors

impl RenderProxyBoxMixin for RenderAbsorbPointer

impl RenderProxyBoxMixin for RenderAnimatedOpacity

impl RenderProxyBoxMixin for RenderAspectRatio

impl RenderProxyBoxMixin for RenderBackdropFilter

impl RenderProxyBoxMixin for RenderClipOval

impl RenderProxyBoxMixin for RenderClipPath

impl RenderProxyBoxMixin for RenderClipRRect

impl RenderProxyBoxMixin for RenderClipRSuperellipse

impl RenderProxyBoxMixin for RenderClipRect

impl RenderProxyBoxMixin for RenderColoredBox

impl RenderProxyBoxMixin for RenderConstrainedBox

impl RenderProxyBoxMixin for RenderCustomPaint

impl RenderProxyBoxMixin for RenderDecoratedBox

impl RenderProxyBoxMixin for RenderFittedBox

impl RenderProxyBoxMixin for RenderFollowerLayer

impl RenderProxyBoxMixin for RenderFractionalTranslation

impl RenderProxyBoxMixin for RenderIgnorePointer

impl RenderProxyBoxMixin for RenderIntrinsicHeight

impl RenderProxyBoxMixin for RenderIntrinsicWidth

impl RenderProxyBoxMixin for RenderLeaderLayer

impl RenderProxyBoxMixin for RenderLimitedBox

impl RenderProxyBoxMixin for RenderMetaData

impl RenderProxyBoxMixin for RenderMouseRegion

impl RenderProxyBoxMixin for RenderOffstage

impl RenderProxyBoxMixin for RenderOpacity

impl RenderProxyBoxMixin for RenderPointerListener

impl RenderProxyBoxMixin for RenderRepaintBoundary

impl RenderProxyBoxMixin for RenderTransform

impl<T: PartialEq + 'static> RenderProxyBoxMixin for RenderAnnotatedRegion<T>