Struct FontManager 

pub struct FontManager { /* private fields */ }

The font manager is used to query the system’s installed fonts and is responsible for caching loaded fonts. It is also responsible for the font fallback.

Implementations

impl FontManager

pub const FONT_COLLECTION_SCHEME: &'static str = "fonts"

pub const SYSTEM_FONT_SCHEME: &'static str = "systemfont"

pub const COMPOSITE_FONT_SCHEME: &'static str = "compositefont"

pub fn system_fonts_key() -> Uri

The key of the system font collection (fonts:SystemFonts).

Internal upstream, where the Skia unit tests see it; public here so that the tests of the Skia crate reach it.

pub fn new(platform_impl: Rc<dyn IFontManagerImpl>) -> Rc<FontManager>

Creates a font manager on top of a font backend. The FontManagerOptions registered with the locator, if any, are applied.

Panics when neither the options nor the backend nor the installed fonts give a default font family name.

pub fn current() -> Rc<FontManager>

Get the current font manager instance.

The font manager registered with the locator, or a new one created on top of the registered font backend (and then registered).

Panics when no font backend (IFontManagerImpl) is registered.

pub fn default_font_family(&self) -> &FontFamily

Gets the system’s default font family.

pub fn system_fonts(&self) -> Rc<dyn IFontCollection>

Get all system fonts.

pub fn platform_impl(&self) -> &Rc<dyn IFontManagerImpl>

The font backend.

Internal upstream, where the Skia unit tests see it; public here so that the tests of the Skia crate reach it.

pub fn try_get_glyph_typeface( &self, typeface: &Typeface, ) -> Option<Rc<GlyphTypeface>>

Tries to get a glyph typeface for specified typeface.

Returns the glyph typeface if the font manager could create it, None otherwise.

pub fn add_font_collection(&self, font_collection: Rc<dyn IFontCollection>)

Add a font collection to the manager.

If a font collection’s key is already present the collection is replaced (and the replaced collection disposed).

Panics when the key of the collection does not follow the fonts: scheme.

pub fn remove_font_collection(&self, key: &Uri)

Removes the font collection that corresponds to specified key.

pub fn try_match_character( &self, codepoint: i32, font_style: FontStyle, font_weight: FontWeight, font_stretch: FontStretch, font_family: Option<&FontFamily>, culture: Option<&CultureInfo>, ) -> Option<Typeface>

Tries to match a specified character to a Typeface that supports specified font properties.

font_family is optional and used for fallback lookup.

Returns the matching typeface if the font manager could match the character to specified parameters, None otherwise.

pub fn get_family_typefaces(&self, font_family: &FontFamily) -> Vec<Typeface>

The typefaces of a font family; empty when the family is unknown.

Internal upstream, where the Skia unit tests see it; public here so that the tests of the Skia crate reach it.

pub fn dispose(&self)

Disposes every font collection and the font backend.

Trait Implementations

impl MarkupTyped for FontManager

const MARKUP: &'static MarkupType

The markup metadata of the type.

impl PartialEq for FontManager

Font managers compare by reference, so that a handle can be an untyped value (the value of the static member markup names).

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

Equality operator ==.

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

Inequality operator !=.