Struct Opacity 

pub struct Opacity {
    pub opacity: f32,
}

Fields

opacity: f32

Trait Implementations

impl Clone for Opacity

fn clone(&self) -> Opacity

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Declare for Opacity

type Builder = FatObj<()>

fn declarer() -> Self::Builder

impl Default for Opacity

fn default() -> Self

Returns the “default value” for a type.

impl Query for Opacity

fn query_inside_first( &self, type_id: TypeId, callback: &mut dyn FnMut(&dyn Any) -> bool, ) -> bool

Query the type in a inside first order, and apply the callback to it. return what the callback return, hint if the query should continue.

fn query_outside_first( &self, type_id: TypeId, callback: &mut dyn FnMut(&dyn Any) -> bool, ) -> bool

Query the type in a outside first order, and apply the callback to it, return what the callback return, hint if the query should continue.

impl Render for Opacity

fn perform_layout(&self, clamp: BoxClamp, ctx: &mut LayoutCtx<'_>) -> Size

Do the work of computing the layout for this widget, and return the size it need.

fn paint(&self, ctx: &mut PaintingCtx<'_>)

paint is a low level trait to help you draw your widget to paint device across PaintingCtx::painter by itself coordinate system. Not care about children’s paint in this method, framework will call children’s paint individual. And framework guarantee always paint parent before children.

fn only_sized_by_parent(&self) -> bool

Whether the constraints from parent are the only input to detect the widget size, and child nodes’ size not affect its size.

fn hit_test(&self, _: &HitTestCtx, _: Point) -> HitTest

Determines the set of render widgets located at the given position.

fn get_transform(&self) -> Option<Transform>

impl SingleChild for Opacity