#[cfg(feature = "objc2")] use objc2::encode::{Encode, Encoding, RefEncode};
usecrate::{CGAffineTransform, CGVector};
#[cfg(target_pointer_width = "64")] type InnerFloat = f64; #[cfg(not(target_pointer_width = "64"))] type InnerFloat = f32;
/// The basic type for all floating-point values. /// /// This is [`f32`] on 32-bit platforms and [`f64`] on 64-bit platforms. /// /// See [Apple's documentation](https://developer.apple.com/documentation/corefoundation/cgfloat?language=objc). // Defined in CoreGraphics/CGBase.h and CoreFoundation/CFCGTypes.h // TODO: Use a newtype here? pubtype CGFloat = InnerFloat;
// NSGeometry types are aliases to CGGeometry types on iOS, tvOS, watchOS and // macOS 64bit (and hence their Objective-C encodings are different). // // TODO: Adjust `objc2-encode` so that this is handled there, and so that we // can effectively forget about it and use `NS` and `CG` types equally. #[cfg(not(any(
not(target_vendor = "apple"),
all(target_os = "macos", target_pointer_width = "32")
)))] #[cfg(feature = "objc2")] mod names { pub(super) const POINT: &str = "CGPoint"; pub(super) const SIZE: &str = "CGSize"; pub(super) const RECT: &str = "CGRect";
}
/// A point in a two-dimensional coordinate system. /// /// See [Apple's documentation](https://developer.apple.com/documentation/corefoundation/cgpoint?language=objc). #[repr(C)] #[derive(Clone, Copy, Debug, PartialEq, Default)] pubstruct CGPoint { /// The x-coordinate of the point. pub x: CGFloat, /// The y-coordinate of the point. pub y: CGFloat,
}
impl CGPoint { /// Create a new point with the given coordinates. /// /// /// # Examples /// /// ``` /// use objc2_core_foundation::CGPoint; /// assert_eq!(CGPoint::new(10.0, -2.3), CGPoint { x: 10.0, y: -2.3 }); /// ``` #[inline] #[doc(alias = "NSMakePoint")] #[doc(alias = "CGPointMake")] pubconstfn new(x: CGFloat, y: CGFloat) -> Self { Self { x, y }
}
/// A point with both coordinates set to `0.0`. /// /// /// # Examples /// /// ``` /// use objc2_core_foundation::CGPoint; /// assert_eq!(CGPoint::ZERO, CGPoint { x: 0.0, y: 0.0 }); /// ``` #[doc(alias = "NSZeroPoint")] #[doc(alias = "CGPointZero")] #[doc(alias = "ORIGIN")] pubconst ZERO: Self = Self::new(0.0, 0.0);
}
/// A two-dimensional size. /// /// As this is sometimes used to represent a distance vector, rather than a /// physical size, the width and height are _not_ guaranteed to be /// non-negative! Methods that expect that must use one of [`CGSize::abs`] or /// [`CGRect::standardize`]. /// /// See [Apple's documentation](https://developer.apple.com/documentation/corefoundation/cgsize?language=objc). #[repr(C)] #[derive(Clone, Copy, Debug, PartialEq, Default)] pubstruct CGSize { /// The dimensions along the x-axis. pub width: CGFloat, /// The dimensions along the y-axis. pub height: CGFloat,
}
impl CGSize { /// Create a new size with the given dimensions. /// /// /// # Examples /// /// ``` /// use objc2_core_foundation::CGSize; /// let size = CGSize::new(10.0, 2.3); /// assert_eq!(size.width, 10.0); /// assert_eq!(size.height, 2.3); /// ``` /// /// Negative values are allowed (though often undesired). /// /// ``` /// use objc2_core_foundation::CGSize; /// let size = CGSize::new(-1.0, 0.0); /// assert_eq!(size.width, -1.0); /// ``` #[inline] #[doc(alias = "NSMakeSize")] #[doc(alias = "CGSizeMake")] pubconstfn new(width: CGFloat, height: CGFloat) -> Self { // The documentation for NSSize explicitly says: // > If the value of width or height is negative, however, the // > behavior of some methods may be undefined. // // But since this type can come from FFI, we'll leave it up to the // user to ensure that it is used safely. Self { width, height }
}
/// Convert the size to a non-negative size. /// /// This can be used to convert the size to a safe value. /// /// /// # Examples /// /// ``` /// use objc2_core_foundation::CGSize; /// assert_eq!(CGSize::new(-1.0, 1.0).abs(), CGSize::new(1.0, 1.0)); /// ``` #[inline] #[cfg(feature = "std")] // Only available in core since Rust 1.85 pubfn abs(self) -> Self { Self::new(self.width.abs(), self.height.abs())
}
/// A size that is 0.0 in both dimensions. /// /// /// # Examples /// /// ``` /// use objc2_core_foundation::CGSize; /// assert_eq!(CGSize::ZERO, CGSize { width: 0.0, height: 0.0 }); /// ``` #[doc(alias = "NSZeroSize")] #[doc(alias = "CGSizeZero")] pubconst ZERO: Self = Self::new(0.0, 0.0);
}
/// The location and dimensions of a rectangle. /// /// In the default Core Graphics coordinate space (macOS), the origin is /// located in the lower-left corner of the rectangle and the rectangle /// extends towards the upper-right corner. /// /// If the context has a flipped coordinate space (iOS, tvOS, watchOS) the /// origin is in the upper-left corner and the rectangle extends towards the /// lower-right corner. /// /// See [Apple's documentation](https://developer.apple.com/documentation/corefoundation/cgrect?language=objc). #[repr(C)] #[derive(Clone, Copy, Debug, PartialEq, Default)] pubstruct CGRect { /// The coordinates of the rectangle’s origin. pub origin: CGPoint, /// The dimensions of the rectangle. pub size: CGSize,
}
impl CGRect { /// Create a new rectangle with the given origin and dimensions. /// /// /// # Examples /// /// ``` /// use objc2_core_foundation::{CGPoint, CGRect, CGSize}; /// let origin = CGPoint::new(10.0, -2.3); /// let size = CGSize::new(5.0, 0.0); /// let rect = CGRect::new(origin, size); /// ``` #[inline] #[doc(alias = "NSMakeRect")] #[doc(alias = "CGRectMake")] pubconstfn new(origin: CGPoint, size: CGSize) -> Self { Self { origin, size }
}
/// A rectangle with origin (0.0, 0.0) and zero width and height. #[doc(alias = "NSZeroRect")] #[doc(alias = "CGRectZero")] pubconst ZERO: Self = Self::new(CGPoint::ZERO, CGSize::ZERO);
/// Returns a rectangle with a positive width and height. /// /// /// # Examples /// /// ``` /// use objc2_core_foundation::{CGPoint, CGRect, CGSize}; /// let origin = CGPoint::new(1.0, 1.0); /// let size = CGSize::new(-5.0, -2.0); /// let rect = CGRect::new(origin, size); /// assert_eq!(rect.standardize().size, CGSize::new(5.0, 2.0)); /// ``` #[inline] #[doc(alias = "CGRectStandardize")] #[cfg(feature = "std")] // `abs` only available in core since Rust 1.85 pubfn standardize(self) -> Self { Self::new(self.origin, self.size.abs())
}
/// The smallest coordinate of the rectangle. #[inline] #[doc(alias = "CGRectGetMinX")] #[doc(alias = "CGRectGetMinY")] #[doc(alias = "NSMinX")] #[doc(alias = "NSMinY")] pubfn min(self) -> CGPoint { self.origin
}
/// The center point of the rectangle. #[inline] #[doc(alias = "CGRectGetMidX")] #[doc(alias = "CGRectGetMidY")] #[doc(alias = "NSMidX")] #[doc(alias = "NSMidY")] pubfn mid(self) -> CGPoint {
CGPoint::new( self.origin.x + (self.size.width * 0.5), self.origin.y + (self.size.height * 0.5),
)
}
/// The largest coordinate of the rectangle. #[inline] #[doc(alias = "CGRectGetMaxX")] #[doc(alias = "CGRectGetMaxY")] #[doc(alias = "NSMaxX")] #[doc(alias = "NSMaxY")] pubfn max(self) -> CGPoint {
CGPoint::new( self.origin.x + self.size.width, self.origin.y + self.size.height,
)
}
/// Returns whether a rectangle has zero width or height. /// /// /// # Examples /// /// ``` /// use objc2_core_foundation::{CGPoint, CGRect, CGSize}; /// assert!(CGRect::ZERO.is_empty()); /// let point = CGPoint::new(1.0, 2.0); /// assert!(CGRect::new(point, CGSize::ZERO).is_empty()); /// assert!(!CGRect::new(point, CGSize::new(1.0, 1.0)).is_empty()); /// ``` #[inline] #[doc(alias = "CGRectIsEmpty")] pubfn is_empty(self) -> bool {
!(self.size.width > 0.0 && self.size.height > 0.0) // TODO: NaN handling? // self.size.width <= 0.0 || self.size.height <= 0.0
}
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