Struct LineBox 

pub struct LineBox<T = F48Dot16> {
    pub ascender: T,
    pub descender: T,
    pub line_gap: T,
}

Ascender, descender and line gap from one table.

In font units unless a caller names another unit. The ascender is above the baseline and the descender below it, whatever sign a font stores them with.

Fields

ascender: T

Height of the line above the baseline. Never negative.

descender: T

Depth of the line below the baseline, as a negative value. Never positive.

line_gap: T

Extra space between the bottom of one line and the top of the next.

Implementations

impl<T: Copy> LineBox<T>

pub fn extents(&self) -> LineExtents<T>

Returns where this line begins and ends, without the gap after it.

Text stacks by the two ends; the gap separates one run of stacked text from the next.

impl LineBox

pub(crate) fn has_nonzero_extent(&self) -> bool

Returns true if either end of the line is away from the baseline.

Some fonts leave both ends at zero, and the line is then not used.

Trait Implementations

impl<T: Clone> Clone for LineBox<T>

fn clone(&self) -> LineBox<T>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<T: Copy> Copy for LineBox<T>

impl<T: Debug> Debug for LineBox<T>

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

Formats the value using the given formatter.

impl<T: Default> Default for LineBox<T>

fn default() -> LineBox<T>

Returns the “default value” for a type.

impl<T: Eq> Eq for LineBox<T>

impl<T: PartialEq> PartialEq for LineBox<T>

fn eq(&self, other: &LineBox<T>) -> bool

Equality operator ==.

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

Inequality operator !=.

impl<T: PartialEq> StructuralPartialEq for LineBox<T>