Struct Rems 

pub struct Rems(pub f32);

A length in rems, a unit based on the font size of the window.

One rem is the window’s root font size, 16 pixels by default. Change it with crate::Window::set_rem_size. Lengths in rems scale with the user’s text size, so prefer them for spacing and text. rems creates a Rems value.

Examples

use gpui::{Pixels, Rems, px, rems};

let two_rems = rems(2.0);
assert_eq!(two_rems, Rems(2.0));
assert_eq!(two_rems.to_pixels(px(16.)), Pixels::from(32.));

Tuple Fields

0: f32

Implementations

impl Rems

pub const ZERO: Self

A length of zero rems.

pub fn to_pixels(self, rem_size: Pixels) -> Pixels

Converts this length to pixels, given the size of one rem.

Examples

assert_eq!(rems(0.25).to_pixels(px(16.)), px(4.));

pub fn from_pixels(length: Pixels, window: &Window) -> Self

Converts length to rems, using the window’s current rem size.

Examples

window.update(|_, window, _| {
    // The default rem size is 16 pixels.
    assert_eq!(Rems::from_pixels(px(32.), window), Rems(2.0));
});

Trait Implementations

impl Add for Rems

type Output = Rems

The resulting type after applying the + operator.

fn add(self, __rhs: Self) -> Self::Output

Performs the + operation.

impl AddAssign for Rems

fn add_assign(&mut self, rhs: Rems)

Performs the += operation.

impl Clone for Rems

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Rems

impl Debug for Rems

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

Formats the value using the given formatter.

impl Default for Rems

fn default() -> Self

Returns the “default value” for a type.

impl Display for Rems

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

Formats the value using the given formatter.

impl<__derive_more_Rhs> Div<__derive_more_Rhs> for Rems

where f32: Div<__derive_more_Rhs, Output = f32>,

type Output = Rems

The resulting type after applying the / operator.

fn div(self, __rhs: __derive_more_Rhs) -> Self::Output

Performs the / operation.

impl From<Rems> for AbsoluteLength

fn from(rems: Rems) -> Self

Converts to this type from the input type.

impl From<Rems> for DefiniteLength

fn from(rems: Rems) -> Self

Converts to this type from the input type.

impl From<Rems> for Length

fn from(rems: Rems) -> Self

Converts to this type from the input type.

impl Half for Rems

fn half(&self) -> Self

Returns half of this value.

impl Interpolate for Rems

fn interpolate(from: Self, to: Self, phase: f32) -> Self

Returns the value at phase, where 0.0 is from and 1.0 is to.

impl IsZero for Rems

fn is_zero(&self) -> bool

Returns true if this value is zero.

impl Lerp for Rems

fn lerp(&self, to: &Self, delta: f32) -> Self

Returns the value delta of the way from self to to.

impl Mul<Pixels> for Rems

type Output = Pixels

The resulting type after applying the * operator.

fn mul(self, other: Pixels) -> Pixels

Performs the * operation.

impl<__derive_more_Rhs> Mul<__derive_more_Rhs> for Rems

where f32: Mul<__derive_more_Rhs, Output = f32>,

type Output = Rems

The resulting type after applying the * operator.

fn mul(self, __rhs: __derive_more_Rhs) -> Self::Output

Performs the * operation.

impl Neg for Rems

type Output = Rems

The resulting type after applying the - operator.

fn neg(self) -> Rems

Performs the unary - operation.

impl PartialEq for Rems

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

Equality operator ==.

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

Inequality operator !=.

impl SpringTarget for Rems

type Output = Rems

The value that the spring animator receives.

fn target(&self) -> f32

Returns this target as a coordinate for the spring.

fn resolve(&self, value: f32) -> Self::Output

Converts a spring coordinate into the output the animator receives.

impl StructuralPartialEq for Rems

impl Sub for Rems

type Output = Rems

The resulting type after applying the - operator.

fn sub(self, __rhs: Self) -> Self::Output

Performs the - operation.

impl TryFrom<&str> for Rems

type Error = Error

The type returned in the event of a conversion error.

fn try_from(value: &str) -> Result<Self, Self::Error>

Performs the conversion.