Struct druid::Rect

pub struct Rect {
    pub x0: f64,
    pub y0: f64,
    pub x1: f64,
    pub y1: f64,
}

A rectangle.

Fields

x0: f64

The minimum x coordinate (left edge).

y0: f64

The minimum y coordinate (top edge in y-down spaces).

x1: f64

The maximum x coordinate (right edge).

y1: f64

The maximum y coordinate (bottom edge in y-down spaces).

Methods

impl Rect

pub const ZERO: Rect

The empty rectangle at the origin.

pub const fn new(x0: f64, y0: f64, x1: f64, y1: f64) -> Rect

A new rectangle from minimum and maximum coordinates.

pub fn from_points(p0: impl Into<Point>, p1: impl Into<Point>) -> Rect

A new rectangle from two points.

The result will have non-negative width and height.

pub fn from_origin_size(origin: impl Into<Point>, size: impl Into<Size>) -> Rect

A new rectangle from origin and size.

The result will have non-negative width and height.

pub fn with_origin(self, origin: impl Into<Point>) -> Rect

Create a new Rect with the same size as self and a new origin.

pub fn with_size(self, size: impl Into<Size>) -> Rect

Create a new Rect with the same origin as self and a new size.

pub fn inset(self, insets: impl Into<Insets>) -> Rect

Create a new Rect by applying the Insets.

This will not preserve negative width and height.

Examples

use kurbo::Rect;
let inset_rect = Rect::new(0., 0., 10., 10.,).inset(2.);
assert_eq!(inset_rect.width(), 14.0);
assert_eq!(inset_rect.x0, -2.0);
assert_eq!(inset_rect.x1, 12.0);

pub fn width(&self) -> f64

The width of the rectangle.

Note: nothing forbids negative width.

pub fn height(&self) -> f64

The height of the rectangle.

Note: nothing forbids negative height.

pub fn min_x(&self) -> f64

Returns the minimum value for the x-coordinate of the rectangle.

pub fn max_x(&self) -> f64

Returns the maximum value for the x-coordinate of the rectangle.

pub fn min_y(&self) -> f64

Returns the minimum value for the y-coordinate of the rectangle.

pub fn max_y(&self) -> f64

Returns the maximum value for the y-coordinate of the rectangle.

pub fn origin(&self) -> Point

The origin of the rectangle.

This is the top left corner in a y-down space and with non-negative width and height.

pub fn size(&self) -> Size

The size of the rectangle.

pub fn area(&self) -> f64

The area of the rectangle.

pub fn center(&self) -> Point

The center point of the rectangle.

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

Returns true if point lies within self.

pub fn abs(&self) -> Rect

Take absolute value of width and height.

The resulting rect has the same extents as the original, but is guaranteed to have non-negative width and height.

pub fn union(&self, other: Rect) -> Rect

The smallest rectangle enclosing two rectangles.

Results are valid only if width and height are non-negative.

pub fn union_pt(&self, pt: Point) -> Rect

Compute the union with one point.

This method includes the perimeter of zero-area rectangles. Thus, a succession of union_pt operations on a series of points yields their enclosing rectangle.

Results are valid only if width and height are non-negative.

pub fn intersect(&self, other: Rect) -> Rect

The intersection of two rectangles.

The result is zero-area if either input has negative width or height. The result always has non-negative width and height.

pub fn inflate(&self, width: f64, height: f64) -> Rect

Expand a rectangle by a constant amount in both directions.

The logic simply applies the amount in each direction. If rectangle area or added dimensions are negative, this could give odd results.

pub fn round(self) -> Rect

A new Rect, with each coordinate value rounded to the nearest integer.

pub fn to_rounded_rect(self, radius: f64) -> RoundedRect

Creates a new RoundedRect from this Rect and the provided corner radius.

Trait Implementations

impl Add<Insets> for Rect

type Output = Rect

The resulting type after applying the + operator.

fn add(self, other: Insets) -> Rect

Performs the + operation.

impl Add<Vec2> for Rect

type Output = Rect

The resulting type after applying the + operator.

fn add(self, v: Vec2) -> Rect

Performs the + operation.

impl Clone for Rect

fn clone(&self) -> Rect

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Copy for Rect

impl Debug for Rect

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

Formats the value using the given formatter.

impl Default for Rect

fn default() -> Rect

Returns the "default value" for a type.

impl From<(Point, Point)> for Rect

fn from(points: (Point, Point)) -> Rect

Performs the conversion.

impl From<(Point, Size)> for Rect

fn from(params: (Point, Size)) -> Rect

Performs the conversion.

impl From<Rect> for Region

fn from(src: Rect) -> Region

Performs the conversion.

impl Shape for Rect

type BezPathIter = RectPathIter

The iterator resulting from to_bez_path.

fn to_bez_path(&self, _tolerance: f64) -> RectPathIter

Convert to a Bézier path, as an iterator over path elements.

fn area(&self) -> f64

Signed area.

fn perimeter(&self, _accuracy: f64) -> f64

Total length of perimeter.

fn winding(&self, pt: Point) -> i32

Note: this function is carefully designed so that if the plane is tiled with rectangles, the winding number will be nonzero for exactly one of them.

fn bounding_box(&self) -> Rect

The smallest rectangle that encloses the shape.

fn as_rect(&self) -> Option<Rect>

If the shape is a rectangle, make it available.

fn into_bez_path(self, tolerance: f64) -> BezPath

Convert into a Bézier path.

fn as_line(&self) -> Option<Line>

If the shape is a line, make it available.

fn as_rounded_rect(&self) -> Option<RoundedRect>

If the shape is a rounded rectangle, make it available.

fn as_circle(&self) -> Option<Circle>

If the shape is a circle, make it available.

fn as_path_slice(&self) -> Option<&[PathEl]>

If the shape is stored as a slice of path elements, make that available.

impl Sub<Insets> for Rect

type Output = Rect

The resulting type after applying the - operator.

fn sub(self, other: Insets) -> Rect

Performs the - operation.

impl Sub<Rect> for Rect

type Output = Insets

The resulting type after applying the - operator.

fn sub(self, other: Rect) -> Insets

Performs the - operation.

impl Sub<Vec2> for Rect

type Output = Rect

The resulting type after applying the - operator.

fn sub(self, v: Vec2) -> Rect

Performs the - operation.