Trait font_kit::source::Source

pub trait Source {
    fn all_families(&self) -> Result<Vec<String>, SelectionError>;
    fn select_family_by_name(
        &self, 
        family_name: &str
    ) -> Result<FamilyHandle, SelectionError>;

    fn select_by_postscript_name(
        &self, 
        postscript_name: &str
    ) -> Result<Handle, SelectionError> { ... }
    fn select_best_match(
        &self, 
        family_names: &[FamilyName], 
        properties: &Properties
    ) -> Result<Handle, SelectionError> { ... }
}

A database of installed fonts that can be queried.

This trait is object-safe.

Required methods

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.

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Provided methods

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.

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.

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Implementors

impl Source for FontconfigSource

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

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

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

impl Source for FsSource

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

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

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

impl Source for MemSource

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

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

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

impl Source for MultiSource

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

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

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

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