donner::svg::EmbeddedFontProvider Class Reference

FontFamilyProvider backed by the curated Google Fonts set embedded into the build. More...

#include "donner/svg/resources/EmbeddedFontProvider.h"

Inheritance diagram for donner::svg::EmbeddedFontProvider:

Public Member Functions
std::vector< FontFamilyInfo >	families () const override
	List the families this provider can supply.
bool	hasFamily (std::string_view family) const override
	Returns true if family is available (case-insensitive).
std::vector< uint8_t >	loadFamilyData (std::string_view family, const FontFaceRequest &request) const override
	Load the raw sfnt (TTF/OTF) bytes for the face of family that best matches request, or an empty vector if the family is unavailable.

Detailed Description

FontFamilyProvider backed by the curated Google Fonts set embedded into the build.

The family table is generated from third_party/google_fonts/fonts.bzl (see the DONNER_GF_ENTRY x-macro include), so it always matches the fetched-and-embedded bytes. All families report FontSource::Embedded.

Each family is a single file, so loadFamilyData ignores the requested face: ten of the twelve curated families are variable fonts whose wght axis neither text backend instances, and the other two ship only a regular face. Bold and italic therefore render upright and regular for embedded families.

Member Function Documentation

families()

std::vector< FontFamilyInfo > donner::svg::EmbeddedFontProvider::families ( ) const

overridevirtual

List the families this provider can supply.

Implements donner::svg::FontFamilyProvider.

hasFamily()

bool donner::svg::EmbeddedFontProvider::hasFamily ( std::string_view family ) const

overridevirtual

Returns true if family is available (case-insensitive).

Implements donner::svg::FontFamilyProvider.

loadFamilyData()

std::vector< uint8_t > donner::svg::EmbeddedFontProvider::loadFamilyData ( std::string_view family, const FontFaceRequest & request ) const

overridevirtual

Load the raw sfnt (TTF/OTF) bytes for the face of family that best matches request, or an empty vector if the family is unavailable.

Providers that only hold a single file per family return it for every request, which means bold and italic render as regular for those families - see EmbeddedFontProvider.

The returned bytes are suitable for FontManager::loadFontData().

Parameters

family	Family name to load (case-insensitive).
request	Face within the family to prefer.

Implements donner::svg::FontFamilyProvider.

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The documentation for this class was generated from the following file:

• donner/svg/resources/EmbeddedFontProvider.h