Struct font_kit::sources::mem::MemSource

pub struct MemSource { /* fields omitted */ }

A source that keeps fonts in memory.

Methods

impl MemSource

pub fn from_fonts<I>(fonts: I) -> Result<MemSource, FontLoadingError> where
    I: Iterator<Item = Handle>, 

Creates a new memory source that contains the given set of font handles.

The fonts referenced by the handles are eagerly loaded into memory.

pub fn all_fonts(&self) -> Result<Vec<Handle>, SelectionError>

Returns paths of all fonts installed on the system.

pub fn all_families(&self) -> Result<Vec<String>, SelectionError>

Returns the names of all families installed on the system.

pub fn select_family_by_name(
    &self,
    family_name: &str
) -> Result<FamilyHandle, SelectionError>

Looks up a font family by name and returns the handles of all the fonts in that family.

FIXME(pcwalton): Case-insensitive comparison.

pub fn select_by_postscript_name(
    &self,
    postscript_name: &str
) -> Result<Handle, SelectionError>

Selects a font by PostScript name, which should be a unique identifier.

The default implementation, which is used by the DirectWrite and the filesystem backends, does a brute-force search of installed fonts to find the one that matches.

pub fn select_best_match(
    &self,
    family_names: &[FamilyName],
    properties: &Properties
) -> Result<Handle, SelectionError>

Performs font matching according to the CSS Fonts Level 3 specification and returns the handle.

Trait Implementations

impl Source for MemSource

fn all_fonts(&self) -> Result<Vec<Handle>, SelectionError>

Returns paths of all fonts installed on the system.

fn all_families(&self) -> Result<Vec<String>, SelectionError>

Returns the names of all families installed on the system.

fn select_family_by_name(
    &self,
    family_name: &str
) -> Result<FamilyHandle, SelectionError>

Looks up a font family by name and returns the handles of all the fonts in that family.

fn select_by_postscript_name(
    &self,
    postscript_name: &str
) -> Result<Handle, SelectionError>

Selects a font by PostScript name, which should be a unique identifier.

fn select_best_match(
    &self,
    family_names: &[FamilyName],
    properties: &Properties
) -> Result<Handle, SelectionError>

Performs font matching according to the CSS Fonts Level 3 specification and returns the handle.