Struct ResolvedFontChains 

pub struct ResolvedFontChains {
    pub chains: HashMap<FontChainKeyOrRef, FontFallbackChain>,
    pub unresolved_families: BTreeSet<String>,
    pub last_resort_chains: usize,
}

Resolved font chains ready for use in layout This is the result of resolving font stacks against FcFontCache

Fields

chains: HashMap<FontChainKeyOrRef, FontFallbackChain>

Map from FontChainKeyOrRef to the resolved FontFallbackChain For FontChainKeyOrRef::Ref variants, the FontFallbackChain contains a single-font chain that covers the entire Unicode range.

unresolved_families: BTreeSet<String>

CSS families that were REQUESTED but could not be matched to any font (not on disk, not registered in memory).

This used to be swallowed: the resolver moved on to the next family and, if the whole stack failed, ensure_chains_nonempty quietly attached an arbitrary system font. Every unmatched family therefore collapsed onto the SAME FontId, text rendered in a font nobody asked for, and no test could tell. A failed family match is now a first-class output: it is recorded here and logged once (see report_unresolved_families).

last_resort_chains: usize

Chains that matched NOTHING at all and only render because ensure_chains_nonempty attached a last-resort font. These are rendering in a font the stylesheet never asked for.

Implementations

impl ResolvedFontChains

pub fn get(&self, key: &FontChainKeyOrRef) -> Option<&FontFallbackChain>

Get a font chain by its key

pub fn get_by_chain_key(&self, key: &FontChainKey) -> Option<&FontFallbackChain>

Get a font chain by FontChainKey (for system fonts)

pub fn get_for_font_stack( &self, font_stack: &[FontSelector], ) -> Option<&FontFallbackChain>

Get a font chain for a font stack (via fontconfig)

pub fn get_for_font_ref(&self, ptr: usize) -> Option<&FontFallbackChain>

Get a font chain for a FontRef pointer

pub fn into_inner(self) -> HashMap<FontChainKeyOrRef, FontFallbackChain>

Consume self and return the inner HashMap with FontChainKeyOrRef keys

This is useful when you need access to both Chain and Ref variants.

pub fn into_fontconfig_chains(self) -> HashMap<FontChainKey, FontFallbackChain>

Consume self and return only the fontconfig-resolved chains

This filters out FontRef entries and returns only the chains resolved via fontconfig. This is what FontManager expects.

pub fn len(&self) -> usize

Get the number of resolved chains

pub fn is_empty(&self) -> bool

Check if there are no resolved chains

pub fn font_refs_len(&self) -> usize

Get the number of direct FontRefs

Trait Implementations

impl Clone for ResolvedFontChains

fn clone(&self) -> ResolvedFontChains

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for ResolvedFontChains

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for ResolvedFontChains

fn default() -> ResolvedFontChains

Returns the “default value” for a type.