Struct ShaperService 

pub struct ShaperService(/* private fields */);

The text shaper an app runs, held as a NonSend resource (font databases are rarely Send).

It derefs to the shaper, so TextShaper methods work directly on it. Build one from any backend with ShaperService::from(backend), and replace the runtime’s default by inserting your own in an app hook. The layout engine reads it for text measurement, so a swapped backend changes measuring and painting together.

Implementations

impl ShaperService

pub fn new<S: TextShaper + 'static>(shaper: S) -> Self

Wrap a shaper.

Trait Implementations

impl Default for ShaperService

fn default() -> Self

Returns the “default value” for a type.

impl Deref for ShaperService

type Target = dyn TextShaper

The resulting type after dereferencing.

fn deref(&self) -> &Self::Target

Dereferences the value.

impl DerefMut for ShaperService

fn deref_mut(&mut self) -> &mut Self::Target

Mutably dereferences the value.

impl From<Box<dyn TextShaper>> for ShaperService

fn from(shaper: Box<dyn TextShaper>) -> Self

Converts to this type from the input type.

impl<S: TextShaper + 'static> From<S> for ShaperService

fn from(shaper: S) -> Self

Converts to this type from the input type.