summaryrefslogtreecommitdiffstats
path: root/third_party/rust/euclid/src/side_offsets.rs
diff options
context:
space:
mode:
authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 09:22:09 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 09:22:09 +0000
commit43a97878ce14b72f0981164f87f2e35e14151312 (patch)
tree620249daf56c0258faa40cbdcf9cfba06de2a846 /third_party/rust/euclid/src/side_offsets.rs
parentInitial commit. (diff)
downloadfirefox-43a97878ce14b72f0981164f87f2e35e14151312.tar.xz
firefox-43a97878ce14b72f0981164f87f2e35e14151312.zip
Adding upstream version 110.0.1.upstream/110.0.1upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'third_party/rust/euclid/src/side_offsets.rs')
-rw-r--r--third_party/rust/euclid/src/side_offsets.rs520
1 files changed, 520 insertions, 0 deletions
diff --git a/third_party/rust/euclid/src/side_offsets.rs b/third_party/rust/euclid/src/side_offsets.rs
new file mode 100644
index 0000000000..ae00fef833
--- /dev/null
+++ b/third_party/rust/euclid/src/side_offsets.rs
@@ -0,0 +1,520 @@
+// Copyright 2013 The Servo Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+//! A group of side offsets, which correspond to top/left/bottom/right for borders, padding,
+//! and margins in CSS.
+
+use crate::length::Length;
+use crate::num::Zero;
+use crate::scale::Scale;
+use crate::Vector2D;
+use core::cmp::{Eq, PartialEq};
+use core::fmt;
+use core::hash::Hash;
+use core::marker::PhantomData;
+use core::ops::{Add, AddAssign, Sub, SubAssign, Div, DivAssign, Mul, MulAssign, Neg};
+#[cfg(feature = "serde")]
+use serde::{Deserialize, Serialize};
+#[cfg(feature = "bytemuck")]
+use bytemuck::{Zeroable, Pod};
+
+/// A group of 2D side offsets, which correspond to top/right/bottom/left for borders, padding,
+/// and margins in CSS, optionally tagged with a unit.
+#[repr(C)]
+#[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
+#[cfg_attr(
+ feature = "serde",
+ serde(bound(serialize = "T: Serialize", deserialize = "T: Deserialize<'de>"))
+)]
+pub struct SideOffsets2D<T, U> {
+ pub top: T,
+ pub right: T,
+ pub bottom: T,
+ pub left: T,
+ #[doc(hidden)]
+ pub _unit: PhantomData<U>,
+}
+
+#[cfg(feature = "arbitrary")]
+impl<'a, T, U> arbitrary::Arbitrary<'a> for SideOffsets2D<T, U>
+where
+ T: arbitrary::Arbitrary<'a>,
+{
+ fn arbitrary(u: &mut arbitrary::Unstructured<'a>) -> arbitrary::Result<Self>
+ {
+ let (top, right, bottom, left) = arbitrary::Arbitrary::arbitrary(u)?;
+ Ok(SideOffsets2D {
+ top,
+ right,
+ bottom,
+ left,
+ _unit: PhantomData,
+ })
+ }
+}
+
+#[cfg(feature = "bytemuck")]
+unsafe impl<T: Zeroable, U> Zeroable for SideOffsets2D<T, U> {}
+
+#[cfg(feature = "bytemuck")]
+unsafe impl<T: Pod, U: 'static> Pod for SideOffsets2D<T, U> {}
+
+impl<T: Copy, U> Copy for SideOffsets2D<T, U> {}
+
+impl<T: Clone, U> Clone for SideOffsets2D<T, U> {
+ fn clone(&self) -> Self {
+ SideOffsets2D {
+ top: self.top.clone(),
+ right: self.right.clone(),
+ bottom: self.bottom.clone(),
+ left: self.left.clone(),
+ _unit: PhantomData,
+ }
+ }
+}
+
+impl<T, U> Eq for SideOffsets2D<T, U> where T: Eq {}
+
+impl<T, U> PartialEq for SideOffsets2D<T, U>
+where
+ T: PartialEq,
+{
+ fn eq(&self, other: &Self) -> bool {
+ self.top == other.top
+ && self.right == other.right
+ && self.bottom == other.bottom
+ && self.left == other.left
+ }
+}
+
+impl<T, U> Hash for SideOffsets2D<T, U>
+where
+ T: Hash,
+{
+ fn hash<H: core::hash::Hasher>(&self, h: &mut H) {
+ self.top.hash(h);
+ self.right.hash(h);
+ self.bottom.hash(h);
+ self.left.hash(h);
+ }
+}
+
+impl<T: fmt::Debug, U> fmt::Debug for SideOffsets2D<T, U> {
+ fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
+ write!(
+ f,
+ "({:?},{:?},{:?},{:?})",
+ self.top, self.right, self.bottom, self.left
+ )
+ }
+}
+
+impl<T: Default, U> Default for SideOffsets2D<T, U> {
+ fn default() -> Self {
+ SideOffsets2D {
+ top: Default::default(),
+ right: Default::default(),
+ bottom: Default::default(),
+ left: Default::default(),
+ _unit: PhantomData,
+ }
+ }
+}
+
+impl<T, U> SideOffsets2D<T, U> {
+ /// Constructor taking a scalar for each side.
+ ///
+ /// Sides are specified in top-right-bottom-left order following
+ /// CSS's convention.
+ pub const fn new(top: T, right: T, bottom: T, left: T) -> Self {
+ SideOffsets2D {
+ top,
+ right,
+ bottom,
+ left,
+ _unit: PhantomData,
+ }
+ }
+
+ /// Constructor taking a typed Length for each side.
+ ///
+ /// Sides are specified in top-right-bottom-left order following
+ /// CSS's convention.
+ pub fn from_lengths(
+ top: Length<T, U>,
+ right: Length<T, U>,
+ bottom: Length<T, U>,
+ left: Length<T, U>,
+ ) -> Self {
+ SideOffsets2D::new(top.0, right.0, bottom.0, left.0)
+ }
+
+ /// Construct side offsets from min and a max vector offsets.
+ ///
+ /// The outer rect of the resulting side offsets is equivalent to translating
+ /// a rectangle's upper-left corner with the min vector and translating the
+ /// bottom-right corner with the max vector.
+ pub fn from_vectors_outer(min: Vector2D<T, U>, max: Vector2D<T, U>) -> Self
+ where
+ T: Neg<Output = T>,
+ {
+ SideOffsets2D {
+ left: -min.x,
+ top: -min.y,
+ right: max.x,
+ bottom: max.y,
+ _unit: PhantomData,
+ }
+ }
+
+ /// Construct side offsets from min and a max vector offsets.
+ ///
+ /// The inner rect of the resulting side offsets is equivalent to translating
+ /// a rectangle's upper-left corner with the min vector and translating the
+ /// bottom-right corner with the max vector.
+ pub fn from_vectors_inner(min: Vector2D<T, U>, max: Vector2D<T, U>) -> Self
+ where
+ T: Neg<Output = T>,
+ {
+ SideOffsets2D {
+ left: min.x,
+ top: min.y,
+ right: -max.x,
+ bottom: -max.y,
+ _unit: PhantomData,
+ }
+ }
+
+ /// Constructor, setting all sides to zero.
+ pub fn zero() -> Self
+ where T: Zero,
+ {
+ SideOffsets2D::new(Zero::zero(), Zero::zero(), Zero::zero(), Zero::zero())
+ }
+
+ /// Returns `true` if all side offsets are zero.
+ pub fn is_zero(&self) -> bool
+ where
+ T: Zero + PartialEq,
+ {
+ let zero = T::zero();
+ self.top == zero && self.right == zero && self.bottom == zero && self.left == zero
+ }
+
+ /// Constructor setting the same value to all sides, taking a scalar value directly.
+ pub fn new_all_same(all: T) -> Self
+ where T : Copy
+ {
+ SideOffsets2D::new(all, all, all, all)
+ }
+
+ /// Constructor setting the same value to all sides, taking a typed Length.
+ pub fn from_length_all_same(all: Length<T, U>) -> Self
+ where T : Copy
+ {
+ SideOffsets2D::new_all_same(all.0)
+ }
+
+ pub fn horizontal(&self) -> T
+ where T: Copy + Add<T, Output = T>
+ {
+ self.left + self.right
+ }
+
+ pub fn vertical(&self) -> T
+ where T: Copy + Add<T, Output = T>
+ {
+ self.top + self.bottom
+ }
+}
+
+impl<T, U> Add for SideOffsets2D<T, U>
+where
+ T: Add<T, Output = T>,
+{
+ type Output = Self;
+ fn add(self, other: Self) -> Self {
+ SideOffsets2D::new(
+ self.top + other.top,
+ self.right + other.right,
+ self.bottom + other.bottom,
+ self.left + other.left,
+ )
+ }
+}
+
+impl<T, U> AddAssign<Self> for SideOffsets2D<T, U>
+where
+ T: AddAssign<T>,
+{
+ fn add_assign(&mut self, other: Self) {
+ self.top += other.top;
+ self.right += other.right;
+ self.bottom += other.bottom;
+ self.left += other.left;
+ }
+}
+
+impl<T, U> Sub for SideOffsets2D<T, U>
+where
+ T: Sub<T, Output = T>,
+{
+ type Output = Self;
+ fn sub(self, other: Self) -> Self {
+ SideOffsets2D::new(
+ self.top - other.top,
+ self.right - other.right,
+ self.bottom - other.bottom,
+ self.left - other.left,
+ )
+ }
+}
+
+impl<T, U> SubAssign<Self> for SideOffsets2D<T, U>
+where
+ T: SubAssign<T>,
+{
+ fn sub_assign(&mut self, other: Self) {
+ self.top -= other.top;
+ self.right -= other.right;
+ self.bottom -= other.bottom;
+ self.left -= other.left;
+ }
+}
+
+impl<T, U> Neg for SideOffsets2D<T, U>
+where
+ T: Neg<Output = T>
+{
+ type Output = Self;
+ fn neg(self) -> Self {
+ SideOffsets2D {
+ top: -self.top,
+ right: -self.right,
+ bottom: -self.bottom,
+ left: -self.left,
+ _unit: PhantomData,
+ }
+ }
+}
+
+impl<T: Copy + Mul, U> Mul<T> for SideOffsets2D<T, U> {
+ type Output = SideOffsets2D<T::Output, U>;
+
+ #[inline]
+ fn mul(self, scale: T) -> Self::Output {
+ SideOffsets2D::new(
+ self.top * scale,
+ self.right * scale,
+ self.bottom * scale,
+ self.left * scale,
+ )
+ }
+}
+
+impl<T: Copy + MulAssign, U> MulAssign<T> for SideOffsets2D<T, U> {
+ #[inline]
+ fn mul_assign(&mut self, other: T) {
+ self.top *= other;
+ self.right *= other;
+ self.bottom *= other;
+ self.left *= other;
+ }
+}
+
+impl<T: Copy + Mul, U1, U2> Mul<Scale<T, U1, U2>> for SideOffsets2D<T, U1> {
+ type Output = SideOffsets2D<T::Output, U2>;
+
+ #[inline]
+ fn mul(self, scale: Scale<T, U1, U2>) -> Self::Output {
+ SideOffsets2D::new(
+ self.top * scale.0,
+ self.right * scale.0,
+ self.bottom * scale.0,
+ self.left * scale.0,
+ )
+ }
+}
+
+impl<T: Copy + MulAssign, U> MulAssign<Scale<T, U, U>> for SideOffsets2D<T, U> {
+ #[inline]
+ fn mul_assign(&mut self, other: Scale<T, U, U>) {
+ *self *= other.0;
+ }
+}
+
+impl<T: Copy + Div, U> Div<T> for SideOffsets2D<T, U> {
+ type Output = SideOffsets2D<T::Output, U>;
+
+ #[inline]
+ fn div(self, scale: T) -> Self::Output {
+ SideOffsets2D::new(
+ self.top / scale,
+ self.right / scale,
+ self.bottom / scale,
+ self.left / scale,
+ )
+ }
+}
+
+impl<T: Copy + DivAssign, U> DivAssign<T> for SideOffsets2D<T, U> {
+ #[inline]
+ fn div_assign(&mut self, other: T) {
+ self.top /= other;
+ self.right /= other;
+ self.bottom /= other;
+ self.left /= other;
+ }
+}
+
+impl<T: Copy + Div, U1, U2> Div<Scale<T, U1, U2>> for SideOffsets2D<T, U2> {
+ type Output = SideOffsets2D<T::Output, U1>;
+
+ #[inline]
+ fn div(self, scale: Scale<T, U1, U2>) -> Self::Output {
+ SideOffsets2D::new(
+ self.top / scale.0,
+ self.right / scale.0,
+ self.bottom / scale.0,
+ self.left / scale.0,
+ )
+ }
+}
+
+impl<T: Copy + DivAssign, U> DivAssign<Scale<T, U, U>> for SideOffsets2D<T, U> {
+ fn div_assign(&mut self, other: Scale<T, U, U>) {
+ *self /= other.0;
+ }
+}
+
+#[test]
+fn from_vectors() {
+ use crate::{point2, vec2};
+ type Box2D = crate::default::Box2D<i32>;
+
+ let b = Box2D {
+ min: point2(10, 10),
+ max: point2(20, 20),
+ };
+
+ let outer = b.outer_box(SideOffsets2D::from_vectors_outer(vec2(-1, -2), vec2(3, 4)));
+ let inner = b.inner_box(SideOffsets2D::from_vectors_inner(vec2(1, 2), vec2(-3, -4)));
+
+ assert_eq!(
+ outer,
+ Box2D {
+ min: point2(9, 8),
+ max: point2(23, 24)
+ }
+ );
+ assert_eq!(
+ inner,
+ Box2D {
+ min: point2(11, 12),
+ max: point2(17, 16)
+ }
+ );
+}
+
+#[test]
+fn test_is_zero() {
+ let s1: SideOffsets2D<f32, ()> = SideOffsets2D::new_all_same(0.0);
+ assert!(s1.is_zero());
+
+ let s2: SideOffsets2D<f32, ()> = SideOffsets2D::new(1.0, 2.0, 3.0, 4.0);
+ assert!(!s2.is_zero());
+}
+
+#[cfg(test)]
+mod ops {
+ use crate::Scale;
+
+ pub enum Mm {}
+ pub enum Cm {}
+
+ type SideOffsets2D<T> = crate::default::SideOffsets2D<T>;
+ type SideOffsets2DMm<T> = crate::SideOffsets2D<T, Mm>;
+ type SideOffsets2DCm<T> = crate::SideOffsets2D<T, Cm>;
+
+ #[test]
+ fn test_mul_scalar() {
+ let s = SideOffsets2D::new(1.0, 2.0, 3.0, 4.0);
+
+ let result = s * 3.0;
+
+ assert_eq!(result, SideOffsets2D::new(3.0, 6.0, 9.0, 12.0));
+ }
+
+ #[test]
+ fn test_mul_assign_scalar() {
+ let mut s = SideOffsets2D::new(1.0, 2.0, 3.0, 4.0);
+
+ s *= 2.0;
+
+ assert_eq!(s, SideOffsets2D::new(2.0, 4.0, 6.0, 8.0));
+ }
+
+ #[test]
+ fn test_mul_scale() {
+ let s = SideOffsets2DMm::new(0.0, 1.0, 3.0, 2.0);
+ let cm_per_mm: Scale<f32, Mm, Cm> = Scale::new(0.1);
+
+ let result = s * cm_per_mm;
+
+ assert_eq!(result, SideOffsets2DCm::new(0.0, 0.1, 0.3, 0.2));
+ }
+
+ #[test]
+ fn test_mul_assign_scale() {
+ let mut s = SideOffsets2DMm::new(2.0, 4.0, 6.0, 8.0);
+ let scale: Scale<f32, Mm, Mm> = Scale::new(0.1);
+
+ s *= scale;
+
+ assert_eq!(s, SideOffsets2DMm::new(0.2, 0.4, 0.6, 0.8));
+ }
+
+ #[test]
+ fn test_div_scalar() {
+ let s = SideOffsets2D::new(10.0, 20.0, 30.0, 40.0);
+
+ let result = s / 10.0;
+
+ assert_eq!(result, SideOffsets2D::new(1.0, 2.0, 3.0, 4.0));
+ }
+
+ #[test]
+ fn test_div_assign_scalar() {
+ let mut s = SideOffsets2D::new(10.0, 20.0, 30.0, 40.0);
+
+ s /= 10.0;
+
+ assert_eq!(s, SideOffsets2D::new(1.0, 2.0, 3.0, 4.0));
+ }
+
+ #[test]
+ fn test_div_scale() {
+ let s = SideOffsets2DCm::new(0.1, 0.2, 0.3, 0.4);
+ let cm_per_mm: Scale<f32, Mm, Cm> = Scale::new(0.1);
+
+ let result = s / cm_per_mm;
+
+ assert_eq!(result, SideOffsets2DMm::new(1.0, 2.0, 3.0, 4.0));
+ }
+
+ #[test]
+ fn test_div_assign_scale() {
+ let mut s = SideOffsets2DMm::new(0.1, 0.2, 0.3, 0.4);
+ let scale: Scale<f32, Mm, Mm> = Scale::new(0.1);
+
+ s /= scale;
+
+ assert_eq!(s, SideOffsets2DMm::new(1.0, 2.0, 3.0, 4.0));
+ }
+}