Struct GridView 

pub struct GridView { /* private fields */ }

Trait Implementations

impl MultiChild for GridView

impl Query for GridView

fn query_inside_first( &self, type_id: TypeId, callback: &mut dyn FnMut(&(dyn Any + 'static)) -> 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 + 'static)) -> 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 GridView

fn perform_layout( &self, _: BoxClamp, ctx: &mut LayoutCtx<'_>, ) -> Size2D<f32, LogicUnit>

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

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 paint(&self, _: &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 hit_test(&self, ctx: &HitTestCtx, pos: Point2D<f32, LogicUnit>) -> HitTest

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

fn get_transform(&self) -> Option<Transform2D<f32, LogicUnit, LogicUnit>>