Struct PointDelta

pub struct PointDelta<T: Coordinate> {
    pub dx: T,
    pub dy: T,
}

A difference between two 2D points.

Fields

dx: T

dy: T

Implementations

impl<T: Coordinate> PointDelta<T>

pub const ZERO: Self

The PointDelta object with a value of (0, 0).

Examples

assert_eq!(swf::PointDelta::<swf::Twips>::ZERO.dx, swf::Twips::ZERO);
assert_eq!(swf::PointDelta::<swf::Twips>::ZERO.dy, swf::Twips::ZERO);

pub const fn new(dx: T, dy: T) -> Self

impl PointDelta<Twips>

pub fn from_pixels(dx: f64, dy: f64) -> Self

Converts the given number of pixels into twips.

This may be a lossy conversion; any precision more than a twip (1/20 pixels) is truncated.

Examples

// 40 pixels is equivalent to 800 twips.
let point = swf::PointDelta::from_pixels(40.0, 20.0);
assert_eq!(point.dx.get(), 800);
assert_eq!(point.dy.get(), 400);

// Output is truncated if more precise than a twip (1/20 pixels).
let point = swf::PointDelta::from_pixels(40.018, 20.0);
assert_eq!(point.dx.get(), 800);
assert_eq!(point.dy.get(), 400);

Trait Implementations

impl<T: Coordinate> Add<PointDelta<T>> for Point<T>

type Output = Point<T>

The resulting type after applying the + operator.

fn add(self, other: PointDelta<T>) -> Self

Performs the + operation.

impl<T: Coordinate> AddAssign<PointDelta<T>> for Point<T>

fn add_assign(&mut self, other: PointDelta<T>)

Performs the += operation.

impl<T: Clone + Coordinate> Clone for PointDelta<T>

fn clone(&self) -> PointDelta<T>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<T: Debug + Coordinate> Debug for PointDelta<T>

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

Formats the value using the given formatter.

impl<T: Default + Coordinate> Default for PointDelta<T>

fn default() -> PointDelta<T>

Returns the “default value” for a type.

impl<T: Coordinate> Div<i32> for PointDelta<T>

type Output = PointDelta<T>

The resulting type after applying the / operator.

fn div(self, other: i32) -> Self

Performs the / operation.

impl<T: Coordinate> DivAssign<i32> for PointDelta<T>

fn div_assign(&mut self, other: i32)

Performs the /= operation.

impl<T: Coordinate> Mul<i32> for PointDelta<T>

type Output = PointDelta<T>

The resulting type after applying the * operator.

fn mul(self, other: i32) -> Self

Performs the * operation.

impl<T: Coordinate> MulAssign<i32> for PointDelta<T>

fn mul_assign(&mut self, other: i32)

Performs the *= operation.

impl<T: Coordinate> Neg for PointDelta<T>

type Output = PointDelta<T>

The resulting type after applying the - operator.

fn neg(self) -> Self

Performs the unary - operation.

impl<T: PartialEq + Coordinate> PartialEq for PointDelta<T>

fn eq(&self, other: &PointDelta<T>) -> bool

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

const 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<T: Coordinate> Sub<PointDelta<T>> for Point<T>

type Output = Point<T>

The resulting type after applying the - operator.

fn sub(self, other: PointDelta<T>) -> Self

Performs the - operation.

impl<T: Coordinate> SubAssign<PointDelta<T>> for Point<T>

fn sub_assign(&mut self, other: PointDelta<T>)

Performs the -= operation.

impl<T: Copy + Coordinate> Copy for PointDelta<T>

impl<T: Eq + Coordinate> Eq for PointDelta<T>

impl<T: Coordinate> StructuralPartialEq for PointDelta<T>