Struct FontContext 

pub struct FontContext { /* private fields */ }

The FontContext represents the per-thread/thread state necessary for working with fonts. It is the public API used by the layout and paint code. It talks directly to the system font service where required.

Implementations

impl FontContext

pub fn new( system_font_service_proxy: Arc<SystemFontServiceProxy>, paint_api: CrossProcessPaintApi, resource_threads: ResourceThreads, ) -> Self

pub fn web_fonts_still_loading(&self) -> usize

pub fn font_group(&self, style: ServoArc<FontStyleStruct>) -> Arc<FontGroup>

Returns a FontGroup representing fonts which can be used for layout, given the style. Font groups are cached, so subsequent calls with the same style will return a reference to an existing FontGroup.

pub fn font_group_with_size( &self, style: ServoArc<FontStyleStruct>, size: Au, ) -> Arc<FontGroup>

Like Self::font_group, but overriding the size found in the FontStyleStruct with the given size in pixels.

pub fn font( &self, font_template: FontTemplateRef, font_descriptor: &FontDescriptor, ) -> Option<FontRef>

Returns a font matching the parameters. Fonts are cached, so repeated calls will return a reference to the same underlying Font.

pub fn matching_templates( &self, descriptor_to_match: &FontDescriptor, family_descriptor: &FontFamilyDescriptor, ) -> Vec<FontTemplateRef>

Try to find matching templates in this FontContext, first looking in the list of web fonts and falling back to asking the super::SystemFontService for a matching system font.

pub fn is_supported_web_font_source(source: &&Source) -> bool

impl FontContext

pub fn construct_web_font_from_data( &self, data: &[u8], descriptors: CSSFontFaceDescriptors, ) -> Option<(LowercaseFontFamilyName, FontTemplate)>

Trait Implementations

impl MallocSizeOf for FontContext

fn size_of(&self, ops: &mut MallocSizeOfOps) -> usize

Measure the heap usage of all descendant heap-allocated structures, but not the space taken up by the value itself.