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LayoutNode

Struct LayoutNode 

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pub struct LayoutNode {
Show 14 fields pub bounds: Rect, pub decoration: BoxStyle, pub content: NodeContent, pub action: Option<ActionId>, pub focus: Option<FocusId>, pub drag: Option<DragId>, pub context: Option<ContextId>, pub caret: Option<usize>, pub selection: Option<(usize, usize)>, pub text_pos: Option<TextPosId>, pub wrap: bool, pub scroll: Option<ScrollId>, pub clip: bool, pub children: Vec<LayoutNode>,
}
Expand description

A laid-out, retained node: absolute bounds, paint decoration, optional text content, the optional tap/focus handles it routes to, and laid-out children. Produced by layout and consumed by paint, hit_test, and the focus queries.

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§bounds: Rect§decoration: BoxStyle§content: NodeContent§action: Option<ActionId>§focus: Option<FocusId>§drag: Option<DragId>§context: Option<ContextId>

Secondary-click (context) handle: this element opens a context menu on right-click.

§caret: Option<usize>

Caret byte index for an editable text leaf (drawn by the focus overlay).

§selection: Option<(usize, usize)>

Selected byte range [start, end) for an editable text leaf (the focus overlay highlights it).

§text_pos: Option<TextPosId>

Text-pointer handle: this element resolves pointer presses/drags to a byte index in its text (click-to-position / drag-to-select).

§wrap: bool

When true, the text content word-wraps to bounds.width when painted.

§scroll: Option<ScrollId>

Scroll container handle: wheel events over this node adjust the app’s offset for id, and its children are laid out at natural size + shifted.

§clip: bool

When true, children are clipped to this node’s bounds when painted (set for scroll containers and overlay panels).

§children: Vec<LayoutNode>

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impl LayoutNode

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pub fn container(bounds: Rect, children: Vec<LayoutNode>) -> LayoutNode

A bare container: bounds + children, no decoration or handlers. Used to stack the main tree and overlay layers under one routable/paintable root.

Trait Implementations§

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impl Clone for LayoutNode

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fn clone(&self) -> LayoutNode

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

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

Performs copy-assignment from source. Read more
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impl Debug for LayoutNode

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

Formats the value using the given formatter. Read more

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Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.