Struct kas_text::fonts::FaceRef

impl FaceRef

pub fn glyph_index(&self, c: char) -> GlyphId

Get glyph identifier for a char

If the char is not found, GlyphId(0) is returned (the ‘missing glyph’ representation).

pub fn dpu(self, dpem: f32) -> DPU

Convert dpem to dpu

Output: a font-specific scale.

Input: dpem is pixels/em

dpem
  = pt_size × dpp
  = pt_size × dpi / 72
  = pt_size × scale_factor × (96 / 72)

pub fn scale_by_dpem(self, dpem: f32) -> ScaledFaceRef

Get a scaled reference

Units: dpem is dots (pixels) per Em (module documentation).

pub fn scale_by_dpu(self, dpu: DPU) -> ScaledFaceRef

Get a scaled reference

Units: dpu is dots (pixels) per font-unit (see module documentation).

pub fn height(&self, dpem: f32) -> f32

Get the height of horizontal text in pixels

Units: dpem is dots (pixels) per Em (module documentation).

Trait Implementations§

impl Clone for FaceRef

fn clone(&self) -> FaceRef

Returns a copy of the value. Read more

1.0.0 · source§

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

Performs copy-assignment from source. Read more

impl Debug for FaceRef

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

Formats the value using the given formatter. Read more

impl Copy for FaceRef

Auto Trait Implementations§

impl UnwindSafe for FaceRef

Blanket Implementations§

impl<T> Any for Twhere
T: 'static + ?Sized,

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

impl<T> Borrow<T> for Twhere
T: ?Sized,

const: unstable · source§

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

impl<T> BorrowMut<T> for Twhere
T: ?Sized,

const: unstable · source§

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

impl<S, T> Cast<T> for Swhere
T: Conv<S>,

fn cast(self) -> T

Cast from Self to T Read more

fn try_cast(self) -> Result<T, Error>

Try converting from Self to T Read more

impl<S, T> CastApprox<T> for Swhere
T: ConvApprox<S>,

fn try_cast_approx(self) -> Result<T, Error>

Try approximate conversion from Self to T Read more

fn cast_approx(self) -> T

Cast approximately from Self to T Read more

impl<S, T> CastFloat<T> for Swhere
T: ConvFloat<S>,

fn cast_trunc(self) -> T

Cast to integer, truncating Read more

fn cast_nearest(self) -> T

Cast to the nearest integer Read more

fn cast_floor(self) -> T

Cast the floor to an integer Read more

fn cast_ceil(self) -> T

Cast the ceiling to an integer Read more

fn try_cast_trunc(self) -> Result<T, Error>

Try converting to integer with truncation Read more

fn try_cast_nearest(self) -> Result<T, Error>

Try converting to the nearest integer Read more

fn try_cast_floor(self) -> Result<T, Error>

Try converting the floor to an integer Read more

fn try_cast_ceil(self) -> Result<T, Error>

Try convert the ceiling to an integer Read more

impl<T> From<T> for T

const: unstable · source§

fn from(t: T) -> T

Returns the argument unchanged.

impl<T, U> Into for Twhere
U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

impl<T> ToOwned for Twhere
T: Clone,

type Owned = T

The resulting type after obtaining ownership.

fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more

fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more

impl<T, U> TryFrom for Twhere
U: Into<T>,

type Error = Infallible

The type returned in the event of a conversion error.

const: unstable · source§

fn try_from(value: U) -> Result<T, <T as TryFrom>::Error>

Performs the conversion.

impl<T, U> TryInto for Twhere
U: TryFrom<T>,