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use point2f::Point2f;
use recti::Recti;
use rectu::Rectu;
use sizef::Sizef;
use thicknessf::Thicknessf;
use vector2f::Vector2f;
use std::f32::{INFINITY, NEG_INFINITY};
use std::ops::{Add, Sub};
#[cfg(all(windows, feature = "d2d"))]
use winapi::um::dcommon::D2D_RECT_F;
#[derive(Copy, Clone, Debug, Default, PartialEq)]
#[cfg_attr(feature = "serde_derive", derive(Serialize, Deserialize))]
#[repr(C)]
pub struct Rectf {
pub left: f32,
pub top: f32,
pub right: f32,
pub bottom: f32,
}
#[derive(Copy, Clone, Debug)]
#[cfg_attr(feature = "serde_derive", derive(Serialize, Deserialize))]
pub enum RectCorner {
TopLeft,
TopRight,
BottomLeft,
BottomRight,
}
impl Rectf {
pub const INFINITE: Rectf = Rectf {
left: NEG_INFINITY,
top: NEG_INFINITY,
right: INFINITY,
bottom: INFINITY,
};
#[inline]
pub fn new(left: f32, top: f32, right: f32, bottom: f32) -> Rectf {
Rectf {
left,
top,
right,
bottom,
}
}
#[inline]
pub fn from_points(p1: impl Into<Point2f>, p2: impl Into<Point2f>) -> Rectf {
let p1 = p1.into();
let p2 = p2.into();
Rectf {
left: p1.x.min(p2.x),
top: p1.y.min(p2.y),
right: p1.x.max(p2.x),
bottom: p1.y.max(p2.y),
}
}
#[inline]
pub fn from_center_size(center: impl Into<Point2f>, size: impl Into<Sizef>) -> Rectf {
let center = center.into();
let size = size.into();
Rectf {
left: center.x - size.width / 2.0,
top: center.y - size.height / 2.0,
right: center.x + size.width / 2.0,
bottom: center.y + size.height / 2.0,
}
}
#[inline]
pub fn from_center_half_extent(
center: impl Into<Point2f>,
half_extents: impl Into<Vector2f>,
) -> Rectf {
let center = center.into();
let half_extents = half_extents.into();
Rectf {
left: center.x - half_extents.x,
top: center.y - half_extents.y,
right: center.x + half_extents.x,
bottom: center.y + half_extents.y,
}
}
#[inline]
pub fn to_i32(&self) -> Recti {
Recti {
left: self.left as i32,
top: self.top as i32,
right: self.right as i32,
bottom: self.bottom as i32,
}
}
#[inline]
pub fn to_u32(&self) -> Rectu {
Rectu {
left: self.left as u32,
top: self.top as u32,
right: self.right as u32,
bottom: self.bottom as u32,
}
}
#[inline]
pub fn rounded(&self) -> Rectf {
Rectf {
left: self.left.round(),
top: self.top.round(),
right: self.right.round(),
bottom: self.bottom.round(),
}
}
#[inline]
pub fn size(&self) -> Sizef {
(self.right - self.bottom, self.bottom - self.top).into()
}
#[inline]
pub fn center(&self) -> Point2f {
Point2f {
x: (self.left + self.right) / 2.0,
y: (self.top + self.bottom) / 2.0,
}
}
#[inline]
pub fn half_extent(&self) -> Vector2f {
let size = self.size();
[size.width / 2.0, size.height / 2.0].into()
}
#[inline]
pub fn corner(&self, corner: RectCorner) -> Point2f {
match corner {
RectCorner::TopLeft => (self.left, self.top).into(),
RectCorner::TopRight => (self.right, self.top).into(),
RectCorner::BottomLeft => (self.left, self.bottom).into(),
RectCorner::BottomRight => (self.right, self.bottom).into(),
}
}
#[inline]
pub fn contains_point(&self, point: impl Into<Point2f>) -> bool {
let point = point.into();
return point.x >= self.left
&& point.y >= self.top
&& point.x <= self.right
&& point.y <= self.bottom;
}
#[inline]
pub fn normalized(self) -> Self {
Rectf {
left: self.left.min(self.right),
top: self.top.min(self.bottom),
right: self.left.max(self.top),
bottom: self.top.max(self.bottom),
}
}
#[inline]
pub fn translated_by(self, translation: impl Into<Vector2f>) -> Self {
let trans = translation.into();
Rectf {
left: self.left + trans.x,
top: self.top + trans.y,
right: self.right + trans.x,
bottom: self.bottom + trans.y,
}
}
#[inline]
pub fn expanded_by(self, thickness: impl Into<Thicknessf>) -> Self {
let t = thickness.into();
Rectf {
left: self.left - t.left,
top: self.top - t.top,
right: self.right + t.right,
bottom: self.bottom + t.bottom,
}
}
#[inline]
pub fn shrunken_by(self, thickness: impl Into<Thicknessf>) -> Self {
let t = thickness.into();
Rectf {
left: self.left + t.left,
top: self.top + t.top,
right: self.right - t.right,
bottom: self.bottom - t.bottom,
}
}
#[inline]
pub fn combined_with(&self, other: impl Into<Rectf>) -> Self {
let r1 = self.normalized();
let r2 = other.into().normalized();
let left = r1.left.min(r2.left);
let top = r1.top.min(r2.top);
let right = r1.right.max(r2.right);
let bottom = r1.bottom.max(r2.bottom);
Rectf {
left,
top,
right,
bottom,
}
}
}
impl Add<Vector2f> for Rectf {
type Output = Rectf;
#[inline]
fn add(self, rhs: Vector2f) -> Rectf {
self.translated_by(rhs)
}
}
impl Sub<Vector2f> for Rectf {
type Output = Rectf;
#[inline]
fn sub(self, rhs: Vector2f) -> Rectf {
self.translated_by(-rhs)
}
}
impl From<(Point2f, Point2f)> for Rectf {
#[inline]
fn from((p1, p2): (Point2f, Point2f)) -> Rectf {
Rectf::from_points(p1, p2)
}
}
impl From<(Point2f, Sizef)> for Rectf {
#[inline]
fn from((center, size): (Point2f, Sizef)) -> Rectf {
Rectf::from_center_size(center, size)
}
}
impl From<(Point2f, Vector2f)> for Rectf {
#[inline]
fn from((center, half_extent): (Point2f, Vector2f)) -> Rectf {
Rectf::from_center_half_extent(center, half_extent)
}
}
impl From<[f32; 4]> for Rectf {
#[inline]
fn from(p: [f32; 4]) -> Rectf {
let (left, top, right, bottom) = (p[0], p[1], p[2], p[3]);
Rectf {
left,
top,
right,
bottom,
}
}
}
#[cfg(all(windows, feature = "d2d"))]
impl From<Rectf> for D2D_RECT_F {
#[inline]
fn from(rect: Rectf) -> D2D_RECT_F {
D2D_RECT_F {
left: rect.left,
top: rect.top,
right: rect.right,
bottom: rect.bottom,
}
}
}
#[cfg(all(windows, feature = "d2d"))]
impl From<D2D_RECT_F> for Rectf {
#[inline]
fn from(rect: D2D_RECT_F) -> Rectf {
Rectf {
left: rect.left,
top: rect.top,
right: rect.right,
bottom: rect.bottom,
}
}
}
#[cfg(all(test, windows, feature = "d2d"))]
#[test]
fn rectf_d2d_bin_compat() {
use std::mem::size_of_val;
fn ptr_eq<T>(a: &T, b: &T) -> bool {
(a as *const T) == (b as *const T)
}
let rect = Rectf::new(0.0, 0.0, 0.0, 0.0);
let d2d = unsafe { &*((&rect) as *const _ as *const D2D_RECT_F) };
assert!(ptr_eq(&rect.left, &d2d.left));
assert!(ptr_eq(&rect.top, &d2d.top));
assert!(ptr_eq(&rect.right, &d2d.right));
assert!(ptr_eq(&rect.bottom, &d2d.bottom));
assert_eq!(size_of_val(&rect), size_of_val(d2d));
}