pub struct Label { /* private fields */ }Expand description
Implementations§
Trait Implementations§
Source§impl Component for Label
impl Component for Label
Source§fn measure(&self, constraint: Constraint, _cx: &mut MeasureCx) -> Size
fn measure(&self, constraint: Constraint, _cx: &mut MeasureCx) -> Size
测量组件在给定约束下的自适应尺寸 Read more
Source§fn layout(&mut self, _rect: Rect, _cx: &mut LayoutCx<'_>)
fn layout(&mut self, _rect: Rect, _cx: &mut LayoutCx<'_>)
布局回调——组件在此计算子节点 rect 并调用 child.layout() Read more
Source§fn for_each_child(&self, _f: &mut dyn FnMut(&Node))
fn for_each_child(&self, _f: &mut dyn FnMut(&Node))
遍历子节点(为焦点系统等提供统一的树遍历接口)
Source§fn for_each_child_mut(&mut self, _f: &mut dyn FnMut(&mut Node))
fn for_each_child_mut(&mut self, _f: &mut dyn FnMut(&mut Node))
遍历子节点(可变版本)
Auto Trait Implementations§
impl Freeze for Label
impl RefUnwindSafe for Label
impl Send for Label
impl Sync for Label
impl Unpin for Label
impl UnsafeUnpin for Label
impl UnwindSafe for Label
Blanket Implementations§
Source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
Source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more