donner::svg::FontFamilyProvider Class Reference

Interface implemented by each font source (embedded, system) and by the aggregate FontCatalog. More...

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

Inheritance diagram for donner::svg::FontFamilyProvider:

Public Member Functions
virtual std::vector< FontFamilyInfo >	families () const =0
	List the families this provider can supply.
virtual bool	hasFamily (std::string_view family) const =0
	Returns true if family is available (case-insensitive).
virtual std::vector< uint8_t >	loadFamilyData (std::string_view family, const FontFaceRequest &request) const =0
	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

Interface implemented by each font source (embedded, system) and by the aggregate FontCatalog.

Lets FontManager resolve a font-family name against providers without depending on the (potentially large) embedded font bytes: the core engine sees only this interface, and the editor injects a concrete catalog.

All lookups by family name are case-insensitive.

Member Function Documentation

families()

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

pure virtual

List the families this provider can supply.

Implemented in donner::svg::EmbeddedFontProvider, donner::svg::FontCatalog, and donner::svg::SystemFontProvider.

hasFamily()

virtual bool donner::svg::FontFamilyProvider::hasFamily ( std::string_view family ) const

pure virtual

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

Implemented in donner::svg::EmbeddedFontProvider, donner::svg::FontCatalog, and donner::svg::SystemFontProvider.

loadFamilyData()

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

pure virtual

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.

Implemented in donner::svg::EmbeddedFontProvider, donner::svg::FontCatalog, and donner::svg::SystemFontProvider.

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

• donner/svg/resources/FontCatalogTypes.h