Struct DrawnMetrics 

#[non_exhaustive]
pub struct DrawnMetrics {
    pub h_advance: Option<f32>,
    pub x_bearing: Option<f32>,
    pub has_overlaps: bool,
    pub dropout_control: DropoutControl,
}

What drawing an outline reports about it.

Values are in the units the outline was drawn in: pixels at a size, font units otherwise. Hinting may adjust the advance and bearing.

Fields (Non-exhaustive)

Non-exhaustive structs could have additional fields added in future. Therefore, non-exhaustive structs cannot be constructed in external crates using the traditional Struct { .. } syntax; cannot be matched against without a wildcard ..; and struct update syntax will not work.

h_advance: Option<f32>

The horizontal advance, if the outline provides one.

A glyf outline provides it through its phantom points, with variations applied. A charstring provides it directly. A VARC composite has none.

x_bearing: Option<f32>

The left side bearing, if the outline provides one.

Only a glyf outline provides it, through its phantom points. A hinter that does not move phantom points, such as an automatic hinter, may not report it.

has_overlaps: bool

True if the glyph is flagged as having overlapping contours or components.

Only glyf has these flags.

dropout_control: DropoutControl

The dropout control mode requested by the glyph program.

This tells a bilevel rasterizer how to treat features thinner than a pixel. It is DropoutControl::Simple, the TrueType default, when no TrueType hinter ran. When one ran, it is the mode the font’s programs left, and DropoutControl::Ignore if they never turned dropout control on.

Trait Implementations

impl Clone for DrawnMetrics

fn clone(&self) -> DrawnMetrics

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for DrawnMetrics

impl Debug for DrawnMetrics

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

Formats the value using the given formatter.

impl Default for DrawnMetrics

fn default() -> DrawnMetrics

Returns the “default value” for a type.

impl PartialEq for DrawnMetrics

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for DrawnMetrics