Struct PanZoomTransform 

pub struct PanZoomTransform {
    pub scale: f64,
    pub offset: Vec2,
}

Where the content sits: view = offset + scale · content.

The child’s pod carries exactly affine; a content-space point (the child’s local coordinates) maps to the view’s local space through it and back through to_content.

Fields

scale: f64

The zoom factor: 1.0 is the child’s natural size.

offset: Vec2

Where the child’s local origin sits in the view, in view-local px.

Implementations

impl PanZoomTransform

pub const IDENTITY: PanZoomTransform

Unscaled, unpanned: the child at the view’s top-left at natural size.

pub fn affine(&self) -> Affine

The child pod’s transform: translate(offset) · scale(scale).

pub fn to_content(&self, point: Point) -> Point

The content-space point drawn at view-local point.

pub fn to_view(&self, point: Point) -> Point

Where content-space point is drawn, in view-local px.

Trait Implementations

impl Clone for PanZoomTransform

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 PanZoomTransform

impl Debug for PanZoomTransform

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

Formats the value using the given formatter.

impl Default for PanZoomTransform

fn default() -> Self

Returns the “default value” for a type.

impl PartialEq for PanZoomTransform

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for PanZoomTransform