Enum directwrite::enums::FontStyle

#[repr(u32)]
pub enum FontStyle {
    Normal,
    Oblique,
    Italic,
}

Represents the style of a font face as normal, italic, or oblique.

Three terms categorize the slant of a font: normal, italic, and oblique.

Font style	Description
Normal	The characters in a normal, or roman, font are upright.
Italic	The characters in an italic font are truly slanted and appear as they were designed.
Oblique	The characters in an oblique font are artificially slanted.

For Oblique, the slant is achieved by performing a shear transformation on the characters from a normal font. When a true italic font is not available on a computer or printer, an oblique style can be generated from the normal font and used to simulate an italic font.

The following illustration shows the normal, italic, and oblique font styles for the Palatino Linotype font. Notice how the italic font style has a more flowing and visually appealing appearance than the oblique font style, which is simply created by skewing the normal font style version of the text.

Note Values other than the ones defined in the enumeration are considered to be invalid, and they are rejected by font API functions.

Variants

Normal

The characters in a normal, or roman, font are upright.

Oblique

The characters in an oblique font are artificially slanted.

Italic

The characters in an italic font are truly slanted and appear as they were designed.

Methods

impl FontStyle

pub fn to_u32(self) -> u32

Convert this enum to its underlying value.

pub fn from_u32(val: u32) -> Option<Self>

Attempt to convert this enum from an underlying value. Returns None if the value is not valid for this enumeration.

Trait Implementations

impl PartialEq<FontStyle> for FontStyle

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

This method tests for self and other values to be equal, and is used by ==.

#[must_use]

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

This method tests for !=.

impl Ord for FontStyle

fn cmp(&self, other: &FontStyle) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

Compares and returns the minimum of two values.

impl Clone for FontStyle

fn clone(&self) -> FontStyle

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Eq for FontStyle

impl Copy for FontStyle

impl PartialOrd<FontStyle> for FontStyle

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

This method returns an ordering between self and other values if one exists.

#[must_use]

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

This method tests less than (for self and other) and is used by the < operator.

#[must_use]

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

This method tests less than or equal to (for self and other) and is used by the <= operator.

#[must_use]

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

This method tests greater than (for self and other) and is used by the > operator.

#[must_use]

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

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

impl Hash for FontStyle

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given [Hasher].

fn hash_slice<H>(data: &[Self], state: &mut H) where
    H: Hasher, 

Feeds a slice of this type into the given [Hasher].

impl Debug for FontStyle

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

Formats the value using the given formatter.

impl CheckedEnum for FontStyle

type Storage = u32

fn try_from_storage(val: Self::Storage) -> Option<Self>

fn to_storage(self) -> Self::Storage