Struct PixelRect 

pub struct PixelRect {
    pub x: u32,
    pub y: u32,
    pub width: u32,
    pub height: u32,
}

A rectangle in physical pixels, relative to the top left of the surface.

Every rectangle this library produces is non-empty and clamped to the surface it was computed for, so width and height are at least one.

Fields

x: u32

Distance from the left edge of the surface, in physical pixels.

y: u32

Distance from the top edge of the surface, in physical pixels.

width: u32

Width in physical pixels.

height: u32

Height in physical pixels.

Implementations

impl PixelRect

pub fn area(self) -> u64

Returns the number of pixels the rectangle covers.

pub fn union(self, other: PixelRect) -> PixelRect

Returns the smallest rectangle covering both operands.

An operand with no area is ignored, so the union of PixelRect::default() with other is other.

pub fn intersect(self, other: PixelRect) -> Option<PixelRect>

Returns the overlapping part of two rectangles, or None when they do not overlap.

pub fn contains_rect(self, other: PixelRect) -> bool

Returns true when other lies entirely inside this rectangle.

The edges are inclusive, so a rectangle with no width or height counts as inside when it sits on the boundary.

pub fn from_logical( rect: Rect, scale: f32, surface_width: u32, surface_height: u32, ) -> Option<PixelRect>

Returns the smallest pixel rectangle covering every physical pixel the logical rectangle touches, clamped to the surface.

The minimum corner is rounded down and the maximum corner is rounded up, so a rectangle that covers part of a pixel still claims that pixel. Returns None when the result would be empty, which includes a rectangle entirely outside the surface.

NaN and infinite coordinates, and a scale that is not positive and finite, are treated as empty.

Trait Implementations

impl Clone for PixelRect

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 PixelRect

impl Debug for PixelRect

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

Formats the value using the given formatter.

impl Default for PixelRect

fn default() -> Self

Returns the “default value” for a type.

impl Eq for PixelRect

impl Hash for PixelRect

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

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 PartialEq for PixelRect

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for PixelRect