Enum LineHeight 

pub enum LineHeight {
    Step(LineSpacing),
    Ratio(f64),
}

How far apart a block’s lines are set: a LineSpacing from the menu’s three, or the ratio the author asked for. FontSize’s peer one property along, and with no unit at all — a line height is a multiple.

A ratio that spells one of the three names is that name, so .ratio(1.5) comes back as .step(.oneHalf) and a menu has a row to tick. A ratio of 1 is single spacing, which is absence: it clears the key.

Variants

Step(LineSpacing)

Ratio(f64)

A multiple of the theme’s line height. 1 is absence, and clears; a number outside 0.01 to 655.35 is refused — see the note above.

Trait Implementations

impl Clone for LineHeight

fn clone(&self) -> LineHeight

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<UT> ConvertError<UT> for LineHeight

fn try_convert_unexpected_callback_error( e: UnexpectedUniFFICallbackError, ) -> Result<Self>

impl Copy for LineHeight

impl Debug for LineHeight

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

Formats the value using the given formatter.

impl<UT> FfiConverter<UT> for LineHeight

const TYPE_ID_META: MetadataBuffer

Type ID metadata, serialized into a MetadataBuffer.

type FfiType = RustBuffer

The low-level type used for passing values of this type over the FFI.

fn lower(v: Self) -> RustBuffer

Lower a rust value of the target type, into an FFI value of type Self::FfiType.

fn try_lift(buf: RustBuffer) -> Result<Self>

Lift a rust value of the target type, from an FFI value of type Self::FfiType.

fn write(obj: Self, buf: &mut Vec<u8>)

Write a rust value into a buffer, to send over the FFI in serialized form.

fn try_read(buf: &mut &[u8]) -> Result<Self>

Read a rust value from a buffer, received over the FFI in serialized form.

impl From<LineHeight> for LineHeight

fn from(l: CoreLineHeight) -> Self

Converts to this type from the input type.

impl<UT> Lift<UT> for LineHeight

type FfiType = <LineHeight as FfiConverter<UT>>::FfiType

fn try_lift(v: Self::FfiType) -> Result<Self>

fn try_read(buf: &mut &[u8]) -> Result<Self>

fn try_lift_from_rust_buffer(v: RustBuffer) -> Result<Self, Error>

Convenience method

impl<UT> LiftRef<UT> for LineHeight

type LiftType = LineHeight

impl<UT> LiftReturn<UT> for LineHeight

type ReturnType = <LineHeight as Lift<UT>>::FfiType

FFI return type for trait interfaces

fn try_lift_successful_return(v: Self::ReturnType) -> Result<Self>

Lift a successfully returned value from a trait interface

fn lift_foreign_return( ffi_return: Self::ReturnType, call_status: RustCallStatus, ) -> Self

Lift a foreign returned value from a trait interface

fn lift_error(_buf: RustBuffer) -> Self

Lift a Rust value for a callback interface method error result

fn handle_callback_unexpected_error(e: UnexpectedUniFFICallbackError) -> Self

Lift a Rust value for an unexpected callback interface error

impl<UT> Lower<UT> for LineHeight

type FfiType = <LineHeight as FfiConverter<UT>>::FfiType

fn lower(obj: Self) -> Self::FfiType

fn write(obj: Self, buf: &mut Vec<u8>)

fn lower_into_rust_buffer(obj: Self) -> RustBuffer

Convenience method

impl<UT> LowerError<UT> for LineHeight

fn lower_error(obj: Self) -> RustBuffer

Lower this value for scaffolding function return

impl<UT> LowerReturn<UT> for LineHeight

type ReturnType = <LineHeight as Lower<UT>>::FfiType

The type that should be returned by scaffolding functions for this type.

fn lower_return(v: Self) -> Result<Self::ReturnType, RustCallError>

Lower the return value from an scaffolding call

fn handle_failed_lift( error: LiftArgsError, ) -> Result<Self::ReturnType, RustCallError>

Lower the return value for failed argument lifts

impl PartialEq for LineHeight

fn eq(&self, other: &LineHeight) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for LineHeight

impl<UT> TypeId<UT> for LineHeight

const TYPE_ID_META: MetadataBuffer