Struct embedded_graphics::geometry::Size

pub struct Size {
    pub width: u32,
    pub height: u32,
}

2D size.

Size is used to define the width and height of an object.

Nalgebra support can be enabled with the nalgebra_support feature. This implements From<Vector2<N>> and From<&Vector2<N>> where N is Scalar + Into<u32>. This allows use of Nalgebra’s Vector2 with embedded-graphics where u32, u16 or u8 is used for value storage.

Examples

Create a Size from two integers

use embedded_graphics::geometry::Size;

// Create a size using the `new` constructor method
let s = Size::new(10, 20);

Create a Size from a Nalgebra Vector2

Be sure to enable the nalgebra_support feature to get Nalgebra integration.

Any Vector2<N> can be used where N: Into<u32> + nalgebra::Scalar. This includes the primitive types u32, u16 and u8.

use embedded_graphics::geometry::Size;
use nalgebra::Vector2;

assert_eq!(Size::from(Vector2::new(10u32, 20)), Size::new(10u32, 20));
assert_eq!(Size::from(Vector2::new(10u16, 20)), Size::new(10u32, 20));
assert_eq!(Size::from(Vector2::new(10u8, 20)), Size::new(10u32, 20));

.into() can also be used, but may require more type annotations:

use embedded_graphics::geometry::Size;
use nalgebra::Vector2;

let c: Size = Vector2::new(10u32, 20).into();

assert_eq!(c, Size::new(10u32, 20));

Fields

width: u32

The width.

height: u32

The height.

Implementations

impl Size

pub const fn new(width: u32, height: u32) -> Size

Creates a size from a width and a height.

pub const fn new_equal(value: u32) -> Size

Creates a size with width and height set to an equal value.

use embedded_graphics::geometry::Size;

let size = Size::new_equal(11);

assert_eq!(
    size,
    Size {
        width: 11,
        height: 11
    }
);

pub const fn zero() -> Size

Creates a size with width and height equal to zero.

pub const fn x_axis(self) -> Size

Returns a size with equal width value and height set to 0.

Examples

Move a Point along the X axis.

use embedded_graphics::geometry::{Point, Size};

let size = Size::new(20, 30);

let point = Point::new(10, 15);

let moved_x = point + size.x_axis();

assert_eq!(moved_x, Point::new(30, 15));

pub const fn y_axis(self) -> Size

Returns a size with equal height value and width set to 0.

Examples

Move a Point along the Y axis.

use embedded_graphics::geometry::{Point, Size};

let size = Size::new(20, 30);

let point = Point::new(10, 15);

let moved_y = point + size.y_axis();

assert_eq!(moved_y, Point::new(10, 45));

pub fn saturating_add(self, other: Size) -> Size

Saturating addition.

Returns u32::max_value() for width and/or height instead of overflowing.

pub fn saturating_sub(self, other: Size) -> Size

Saturating subtraction.

Returns 0 for width and/or height instead of overflowing, if the value in other is larger then in self.

pub fn component_min(self, other: Size) -> Size

Returns the componentwise minimum of two Sizes.

use embedded_graphics::geometry::Size;

let min = Size::new(20, 30).component_min(Size::new(15, 50));

assert_eq!(min, Size::new(15, 30));

pub fn component_max(self, other: Size) -> Size

Returns the componentwise maximum of two Sizes.

use embedded_graphics::geometry::Size;

let min = Size::new(20, 30).component_max(Size::new(15, 50));

assert_eq!(min, Size::new(20, 50));

pub fn component_mul(self, other: Size) -> Size

Returns the componentwise multiplication of two Sizes.

use embedded_graphics::geometry::Size;

let result = Size::new(20, 30).component_mul(Size::new(2, 3));

assert_eq!(result, Size::new(40, 90));

pub fn component_div(self, other: Size) -> Size

Returns the componentwise division of two Sizes.

Panics

Panics if one of the components of other equals zero.

use embedded_graphics::geometry::Size;

let result = Size::new(20, 30).component_div(Size::new(5, 10));

assert_eq!(result, Size::new(4, 3));

Trait Implementations

impl Add<Size> for Point

fn add(self, other: Size) -> Point

Offsets a point by adding a size.

Panics

This function will panic if width or height are too large to be represented as an i32 and debug assertions are enabled.

type Output = Point

The resulting type after applying the + operator.

impl Add for Size

type Output = Size

The resulting type after applying the + operator.

fn add(self, other: Size) -> Size

Performs the + operation.

impl AddAssign<Size> for Point

fn add_assign(&mut self, other: Size)

Offsets a point by adding a size.

Panics

This function will panic if width or height are too large to be represented as an i32 and debug assertions are enabled.

impl AddAssign for Size

fn add_assign(&mut self, other: Size)

Performs the += operation.

impl Clone for Size

fn clone(&self) -> Size

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Size

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

Formats the value using the given formatter.

impl Default for Size

fn default() -> Size

Returns the “default value” for a type.

impl Display for Size

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

Formats the value using the given formatter.

impl Div<u32> for Size

type Output = Size

The resulting type after applying the / operator.

fn div(self, rhs: u32) -> Size

Performs the / operation.

impl DivAssign<u32> for Size

fn div_assign(&mut self, rhs: u32)

Performs the /= operation.

impl From<&[u32; 2]> for Size

fn from(other: &[u32; 2]) -> Size

Converts to this type from the input type.

impl From<[u32; 2]> for Size

fn from(other: [u32; 2]) -> Size

Converts to this type from the input type.

impl From<(u32, u32)> for Size

fn from(other: (u32, u32)) -> Size

Converts to this type from the input type.

impl Hash for Size

fn hash<__H>(&self, state: &mut __H)

where __H: Hasher,

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Index<usize> for Size

type Output = u32

The returned type after indexing.

fn index(&self, idx: usize) -> &u32

Performs the indexing (container[index]) operation.

impl Mul<u32> for Size

type Output = Size

The resulting type after applying the * operator.

fn mul(self, rhs: u32) -> Size

Performs the * operation.

impl MulAssign<u32> for Size

fn mul_assign(&mut self, rhs: u32)

Performs the *= operation.

impl Ord for Size

fn cmp(&self, other: &Size) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized + PartialOrd,

Restrict a value to a certain interval.

impl PartialEq for Size

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialOrd for Size

fn partial_cmp(&self, other: &Size) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

Tests less than (for self and other) and is used by the < operator.

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

Tests less than or equal to (for self and other) and is used by the <= operator.

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

Tests greater than (for self and other) and is used by the > operator.

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

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl Sub<Size> for Point

fn sub(self, other: Size) -> Point

Offsets a point by subtracting a size.

Panics

This function will panic if width or height are too large to be represented as an i32 and debug assertions are enabled.

type Output = Point

The resulting type after applying the - operator.

impl Sub for Size

type Output = Size

The resulting type after applying the - operator.

fn sub(self, other: Size) -> Size

Performs the - operation.

impl SubAssign<Size> for Point

fn sub_assign(&mut self, other: Size)

Offsets a point by subtracting a size.

Panics

This function will panic if width or height are too large to be represented as an i32 and debug assertions are enabled.

impl SubAssign for Size

fn sub_assign(&mut self, other: Size)

Performs the -= operation.

impl Copy for Size

impl Eq for Size

impl StructuralPartialEq for Size