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SizeToContent

Enum SizeToContent 

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pub enum SizeToContent {
    Off,
    Height,
}
Expand description

Whether an OS window resizes itself to fit its content’s intrinsic height.

Off (default) keeps the window at its configured size. Height fixes the width and grows or shrinks the height to the content’s natural height — the modal-dialog case, e.g. a MessageBox whose “Show details” expander adds text.

The window never shrinks below its min_size floor, and its width is left untouched. Intended for a window with a single primary content root (a dialog). The content’s height must NOT depend on the window’s own height (e.g. a signal bound to the window size), or the measure → resize loop may fail to converge. On Wayland only the size round-trips (position is compositor-owned), which is fine — size-to-content changes only size.

(A width / both-axes mode is intentionally not offered: no consumer needs it, and a half-wired variant would silently behave like Height.)

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Off

The window keeps its configured size (the default).

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Height

Width is fixed; height follows the content’s intrinsic height.

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impl SizeToContent

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pub fn sizes_height(self) -> bool

The window sizes its height to the content.

Trait Implementations§

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impl Clone for SizeToContent

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fn clone(&self) -> SizeToContent

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 Copy for SizeToContent

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impl Debug for SizeToContent

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

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

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fn default() -> SizeToContent

Returns the “default value” for a type. Read more
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impl Eq for SizeToContent

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impl PartialEq for SizeToContent

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

Equality operator ==. Read more
1.0.0 (const: unstable) · Source§

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=. Read more
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impl StructuralPartialEq for SizeToContent

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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 = !

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.