Enum SystemFontType 

#[repr(C)]
pub enum SystemFontType {
    Ui = 0,
    UiBold = 1,
    Monospace = 2,
    MonospaceBold = 3,
    MonospaceItalic = 4,
    Title = 5,
    TitleBold = 6,
    Menu = 7,
    Small = 8,
    Serif = 9,
    SerifBold = 10,
}

System font types that can be resolved at runtime based on OS settings.

This enum allows specifying semantic font roles that get resolved to actual font families based on the current platform and user preferences. For example, Monospace resolves to:

• macOS: SF Mono or Menlo
• Windows: Cascadia Mono or Consolas
• Linux: Ubuntu Mono or DejaVu Sans Mono

Font variants (bold, italic) can be combined with the base type.

Variants

Ui = 0

UI font for buttons, labels, menus (SF Pro, Segoe UI, Cantarell)

UiBold = 1

Bold variant of UI font

Monospace = 2

Monospace font for code (SF Mono, Consolas, Ubuntu Mono)

MonospaceBold = 3

Bold variant of monospace font

MonospaceItalic = 4

Italic variant of monospace font

Title = 5

Font for window titles

TitleBold = 6

Bold variant of title font

Menu = 7

Font for menu items

Small = 8

Small/caption font

Serif = 9

Serif font for reading content (New York on macOS, Georgia on Windows)

SerifBold = 10

Bold variant of serif font

Implementations

impl SystemFontType

pub fn from_css_str(s: &str) -> Option<Self>

Parse a SystemFontType from a CSS string.

Supported formats:

• system:ui, system:ui:bold
• system:monospace, system:monospace:bold, system:monospace:italic
• system:title, system:title:bold
• system:menu
• system:small
• system:serif, system:serif:bold

pub fn as_css_str(&self) -> &'static str

Get the CSS syntax for this system font type.

pub fn is_bold(&self) -> bool

Returns true if this system font type implies bold weight. Used when resolving system fonts to pass the correct weight to fontconfig.

pub fn is_italic(&self) -> bool

Returns true if this system font type implies italic style.

impl SystemFontType

pub fn get_fallback_chain(&self, platform: &Platform) -> Vec<&'static str>

Returns the font fallback chain for this font type on the given platform.

The returned list contains font family names in order of preference. The first available font should be used.

Trait Implementations

impl Clone for SystemFontType

fn clone(&self) -> SystemFontType

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for SystemFontType

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

Formats the value using the given formatter.

impl Default for SystemFontType

fn default() -> Self

Returns the “default value” for a type.

impl Hash for SystemFontType

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, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Ord for SystemFontType

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

This method returns an Ordering between self and other.

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

where Self: Sized,

Compares and returns the maximum of two values.

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

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq for SystemFontType

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialOrd for SystemFontType

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

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

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

Tests less than (for self and other) and is used by the < operator.

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

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

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

Tests greater than (for self and other) and is used by the > operator.

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

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

impl Copy for SystemFontType

impl Eq for SystemFontType

impl StructuralPartialEq for SystemFontType