Layout

Struct Layout 

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pub struct Layout {
    pub order: u32,
    pub location: Point<f32>,
    pub size: Size<f32>,
    pub content_size: Size<f32>,
    pub scrollbar_size: Size<f32>,
    pub border: Rect<f32>,
    pub padding: Rect<f32>,
    pub margin: Rect<f32>,
}
Expand description

The final result of a layout algorithm for a single node.

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§order: u32

The relative ordering of the node

Nodes with a higher order should be rendered on top of those with a lower order. This is effectively a topological sort of each tree.

§location: Point<f32>

The top-left corner of the node

§size: Size<f32>

The width and height of the node

§content_size: Size<f32>

The width and height of the content inside the node. This may be larger than the size of the node in the case of overflowing content and is useful for computing a “scroll width/height” for scrollable nodes

§scrollbar_size: Size<f32>

The size of the scrollbars in each dimension. If there is no scrollbar then the size will be zero.

§border: Rect<f32>

The size of the borders of the node

§padding: Rect<f32>

The size of the padding of the node

§margin: Rect<f32>

The size of the margin of the node

Implementations§

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impl Layout

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pub const fn new() -> Layout

Creates a new zero-Layout.

The Zero-layout has size and location set to ZERO. The order value of this layout is set to the minimum value of 0. This means it should be rendered below all other Layouts.

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pub const fn with_order(order: u32) -> Layout

Creates a new zero-Layout with the supplied order value.

Nodes with a higher order should be rendered on top of those with a lower order. The Zero-layout has size and location set to ZERO.

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pub fn content_box_width(&self) -> f32

Get the width of the node’s content box

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pub fn content_box_height(&self) -> f32

Get the height of the node’s content box

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pub fn content_box_size(&self) -> Size<f32>

Get the size of the node’s content box

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pub fn content_box_x(&self) -> f32

Get x offset of the node’s content box relative to it’s parent’s border box

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pub fn content_box_y(&self) -> f32

Get x offset of the node’s content box relative to it’s parent’s border box

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impl Layout

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pub fn scroll_width(&self) -> f32

Return the scroll width of the node. The scroll width is the difference between the width and the content width, floored at zero

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pub fn scroll_height(&self) -> f32

Return the scroll height of the node. The scroll height is the difference between the height and the content height, floored at zero

Trait Implementations§

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impl Clone for Layout

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fn clone(&self) -> Layout

Returns a duplicate of the value. Read more
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fn clone_from(&mut self, source: &Self)

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

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

Formats the value using the given formatter. Read more
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impl Default for Layout

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fn default() -> Layout

Returns the “default value” for a type. Read more
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impl PartialEq for Layout

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fn eq(&self, other: &Layout) -> bool

Tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl Copy for Layout

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impl StructuralPartialEq for Layout

Auto Trait Implementations§

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impl Freeze for Layout

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impl RefUnwindSafe for Layout

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impl Send for Layout

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impl Sync for Layout

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impl Unpin for Layout

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impl UnwindSafe for Layout

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> Downcast for T
where T: Any,

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fn into_any(self: Box<T>) -> Box<dyn Any>

Convert Box<dyn Trait> (where Trait: Downcast) to Box<dyn Any>. Box<dyn Any> can then be further downcast into Box<ConcreteType> where ConcreteType implements Trait.
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fn into_any_rc(self: Rc<T>) -> Rc<dyn Any>

Convert Rc<Trait> (where Trait: Downcast) to Rc<Any>. Rc<Any> can then be further downcast into Rc<ConcreteType> where ConcreteType implements Trait.
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fn as_any(&self) -> &(dyn Any + 'static)

Convert &Trait (where Trait: Downcast) to &Any. This is needed since Rust cannot generate &Any’s vtable from &Trait’s.
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Convert &mut Trait (where Trait: Downcast) to &Any. This is needed since Rust cannot generate &mut Any’s vtable from &mut Trait’s.
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impl<T> DowncastSync for T
where T: Any + Send + Sync,

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fn into_any_arc(self: Arc<T>) -> Arc<dyn Any + Send + Sync>

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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> Instrument for T

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fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more
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Instruments this type with the current Span, returning an Instrumented wrapper. Read more
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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> Same for T

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type Output = T

Should always be Self
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impl<SS, SP> SupersetOf<SS> for SP
where SS: SubsetOf<SP>,

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fn to_subset(&self) -> Option<SS>

The inverse inclusion map: attempts to construct self from the equivalent element of its superset. Read more
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fn is_in_subset(&self) -> bool

Checks if self is actually part of its subset T (and can be converted to it).
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fn to_subset_unchecked(&self) -> SS

Use with care! Same as self.to_subset but without any property checks. Always succeeds.
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fn from_subset(element: &SS) -> SP

The inclusion map: converts self to the equivalent element of its superset.
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where T: Clone,

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The resulting type after obtaining ownership.
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Creates owned data from borrowed data, usually by cloning. Read more
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type Error = Infallible

The type returned in the event of a conversion error.
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Performs the conversion.
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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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