Struct pax_runtime::api::Transform2D

pub struct Transform2D {
    pub previous: Option<Box<Transform2D>>,
    pub rotate: Option<Rotation>,
    pub translate: Option<[Size; 2]>,
    pub anchor: Option<[Size; 2]>,
    pub scale: Option<[Size; 2]>,
    pub skew: Option<[f64; 2]>,
}

A sugary representation of an Affine transform+, including anchor and align as layout-computed properties.

translate represents an (x,y) affine translation scale represents an (x,y) non-uniform affine scale rotate represents a (z) affine rotation (intuitive 2D rotation) anchor represents the “(0,0)” point of the render node as it relates to its own bounding box. By default that’s the top-left of the element, but anchor allows that to be offset either by a pixel or percentage-of-element-size for each of (x,y)

Fields

previous: Option<Box<Transform2D>>

Keeps track of a linked list of previous Transform2Ds, assembled e.g. via multiplication

rotate: Option<Rotation>

Rotation is single-dimensional for 2D rendering, representing rotation over z axis

translate: Option<[Size; 2]>

anchor: Option<[Size; 2]>

scale: Option<[Size; 2]>

skew: Option<[f64; 2]>

Implementations

impl Transform2D

pub fn scale(x: Size, y: Size) -> Transform2D

Scale coefficients (1.0 == 100%) over x-y plane

pub fn rotate(z: Rotation) -> Transform2D

Rotation over z axis

pub fn translate(x: Size, y: Size) -> Transform2D

Translation across x-y plane, pixels

pub fn anchor(x: Size, y: Size) -> Transform2D

Describe alignment of the (0,0) position of this element as it relates to its own bounding box

Trait Implementations

impl Clone for Transform2D

fn clone(&self) -> Transform2D

Returns a copy of the value.

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

Performs copy-assignment from source.

impl ComputableTransform for Transform2D

fn compute_transform2d_matrix( &self, node_size: (f64, f64), container_bounds: (f64, f64) ) -> Transform2

impl Debug for Transform2D

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

Formats the value using the given formatter.

impl Default for Transform2D

fn default() -> Transform2D

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for Transform2D

fn deserialize<__D>( __deserializer: __D ) -> Result<Transform2D, <__D as Deserializer<'de>>::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Interpolatable for Transform2D

fn interpolate(&self, _other: &Self, _t: f64) -> Self

impl Mul for Transform2D

type Output = Transform2D

The resulting type after applying the * operator.

fn mul(self, rhs: Transform2D) -> <Transform2D as Mul>::Output

Performs the * operation.

impl Serialize for Transform2D

fn serialize<__S>( &self, __serializer: __S ) -> Result<<__S as Serializer>::Ok, <__S as Serializer>::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.