pub enum FontRelativeLength {
    Em(CSSFloat),
    Ex(CSSFloat),
    Ch(CSSFloat),
    Cap(CSSFloat),
    Ic(CSSFloat),
    Rem(CSSFloat),
    Lh(CSSFloat),
    Rlh(CSSFloat),
}
Expand description

A font relative length.

Variants§

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Em(CSSFloat)

A “em” value: https://drafts.csswg.org/css-values/#em

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Ex(CSSFloat)

A “ex” value: https://drafts.csswg.org/css-values/#ex

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Ch(CSSFloat)

A “ch” value: https://drafts.csswg.org/css-values/#ch

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Cap(CSSFloat)

A “cap” value: https://drafts.csswg.org/css-values/#cap

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Ic(CSSFloat)

An “ic” value: https://drafts.csswg.org/css-values/#ic

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Rem(CSSFloat)

A “rem” value: https://drafts.csswg.org/css-values/#rem

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Lh(CSSFloat)

A “lh” value: https://drafts.csswg.org/css-values/#lh

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Rlh(CSSFloat)

A “rlh” value: https://drafts.csswg.org/css-values/#lh

Implementations§

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impl FontRelativeLength

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fn unitless_value(&self) -> CSSFloat

Return the unitless, raw value.

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fn unit(&self) -> &'static str

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fn try_op<O>(&self, other: &Self, op: O) -> Result<Self, ()>where O: Fn(f32, f32) -> f32,

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fn map(&self, op: impl FnMut(f32) -> f32) -> Self

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pub fn to_computed_value( &self, context: &Context<'_>, base_size: FontBaseSize, line_height_base: LineHeightBase ) -> Length

Computes the font-relative length.

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fn reference_font_size_and_length( &self, context: &Context<'_>, base_size: FontBaseSize, line_height_base: LineHeightBase ) -> (Length, CSSFloat)

Return reference font size.

We use the base_size flag to pass a different size for computing font-size and unconstrained font-size.

This returns a pair, the first one is the reference font size, and the second one is the unpacked relative length.

Trait Implementations§

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impl Clone for FontRelativeLength

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fn clone(&self) -> FontRelativeLength

Returns a copy 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 FontRelativeLength

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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 MallocSizeOf for FontRelativeLength

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fn size_of(&self, ops: &mut MallocSizeOfOps) -> usize

Measure the heap usage of all descendant heap-allocated structures, but not the space taken up by the value itself.
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impl PartialEq<FontRelativeLength> for FontRelativeLength

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

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

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl PartialOrd<FontRelativeLength> for FontRelativeLength

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fn partial_cmp(&self, other: &Self) -> Option<Ordering>

This method returns an ordering between self and other values if one exists. Read more
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fn lt(&self, other: &Rhs) -> bool

This method tests less than (for self and other) and is used by the < operator. Read more
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fn le(&self, other: &Rhs) -> bool

This method tests less than or equal to (for self and other) and is used by the <= operator. Read more
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fn gt(&self, other: &Rhs) -> bool

This method tests greater than (for self and other) and is used by the > operator. Read more
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fn ge(&self, other: &Rhs) -> bool

This method tests greater than or equal to (for self and other) and is used by the >= operator. Read more
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impl ToCss for FontRelativeLength

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fn to_css<W>(&self, dest: &mut CssWriter<'_, W>) -> Resultwhere W: Write,

Serialize self in CSS syntax, writing to dest.
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fn to_css_string(&self) -> String

Serialize self in CSS syntax and return a string. Read more
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impl ToShmem for FontRelativeLength

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fn to_shmem(&self, builder: &mut SharedMemoryBuilder) -> Result<Self>

Clones this value into a form suitable for writing into a SharedMemoryBuilder. Read more
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impl Copy for FontRelativeLength

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impl StructuralPartialEq for FontRelativeLength

Auto Trait Implementations§

Blanket Implementations§

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impl<T> Any for Twhere 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 Twhere 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 Twhere 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> 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 Twhere 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> MaybeBoxed<Box<T, Global>> for T

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fn maybe_boxed(self) -> Box<T, Global>

Convert
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impl<T> MaybeBoxed<T> for T

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fn maybe_boxed(self) -> T

Convert
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impl<T> Pointable for T

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const ALIGN: usize = _

The alignment of pointer.
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type Init = T

The type for initializers.
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unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more
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unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more
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unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more
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unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more
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impl<T> Same<T> for T

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type Output = T

Should always be Self
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impl<T> ToOwned for Twhere 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 Twhere 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 Twhere 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.
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impl<T> Erased for T