Struct SliverLogicalContainerParentData 

pub struct SliverLogicalContainerParentData { /* private fields */ }

Parent data for slivers that have multiple children and that position their children using layout offsets.

Implementations

impl SliverLogicalContainerParentData

pub const fn new() -> SliverLogicalContainerParentData

Creates parent data with no layout offset and no siblings.

pub fn sliver_logical_parent_data(&self) -> &SliverLogicalParentData

The SliverLogicalParentData half.

pub fn sliver_logical_parent_data_mut(&mut self) -> &mut SliverLogicalParentData

See sliver_logical_parent_data.

pub fn layout_offset(&self) -> Option<f64>

See SliverLogicalParentData::layout_offset.

pub fn set_layout_offset(&mut self, value: Option<f64>)

Sets layout_offset.

Trait Implementations

impl ContainerParentDataMixin for SliverLogicalContainerParentData

type ChildType = AnyRenderSliver

The type-erased handle of a child in the list. AnyRenderBox for a box container.

fn container_parent_data(&self) -> &ContainerParentData<AnyRenderSliver>

Mixin field access.

fn container_parent_data_mut( &mut self, ) -> &mut ContainerParentData<AnyRenderSliver>

See container_parent_data.

fn previous_sibling(&self) -> Option<Self::ChildType>

The previous sibling in the parent’s child list.

fn set_previous_sibling(&mut self, value: Option<Self::ChildType>)

Sets previous_sibling.

fn next_sibling(&self) -> Option<Self::ChildType>

The next sibling in the parent’s child list.

fn set_next_sibling(&mut self, value: Option<Self::ChildType>)

Sets next_sibling.

fn detach(&mut self)

Clear the sibling pointers.

impl Debug for SliverLogicalContainerParentData

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for SliverLogicalContainerParentData

fn default() -> SliverLogicalContainerParentData

Returns the “default value” for a type.

impl Display for SliverLogicalContainerParentData

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl ParentData for SliverLogicalContainerParentData

fn detach(&mut self)

Called when the render object is removed from the tree.

fn provide(&self, id: TypeId) -> Option<&dyn Any>

The half of this parent data whose type is id, if it embeds one.

fn provide_mut(&mut self, id: TypeId) -> Option<&mut dyn Any>

See provide; mirrors it exactly.