Vendor things

third-party/vendor/core-graphics/src/gradient.rs

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+// 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.
+
+#![allow(non_upper_case_globals)]
+
+use base::CGFloat;
+use color::CGColor;
+use color_space::CGColorSpace;
+
+use core_foundation::array::{ CFArray, CFArrayRef };
+use core_foundation::base::{CFRelease, CFRetain, TCFType};
+use foreign_types::ForeignType;
+
+use libc::size_t;
+
+bitflags! {
+    #[repr(C)]
+    pub struct CGGradientDrawingOptions: u32 {
+        const CGGradientDrawsBeforeStartLocation = (1 << 0);
+        const CGGradientDrawsAfterEndLocation = (1 << 1);
+    }
+}
+
+foreign_type! {
+    #[doc(hidden)]
+    type CType = ::sys::CGGradient;
+    fn drop = |p| CFRelease(p as *mut _);
+    fn clone = |p| CFRetain(p as *const _) as *mut _;
+    pub struct CGGradient;
+    pub struct CGGradientRef;
+}
+
+impl CGGradient {
+    pub fn create_with_color_components(color_space: &CGColorSpace, components: &[CGFloat], locations: &[CGFloat], count: usize) -> CGGradient {
+        unsafe {
+            let result = CGGradientCreateWithColorComponents(color_space.as_ptr(), components.as_ptr(), locations.as_ptr(), count);
+            assert!(!result.is_null());
+            Self::from_ptr(result)
+        }
+    }
+
+    pub fn create_with_colors(color_space: &CGColorSpace, colors: &CFArray<CGColor>, locations: &[CGFloat]) -> CGGradient {
+        unsafe {
+            let result = CGGradientCreateWithColors(color_space.as_ptr(), colors.as_concrete_TypeRef(), locations.as_ptr());
+            assert!(!result.is_null());
+            Self::from_ptr(result)
+        }
+    }
+}
+
+#[link(name = "CoreGraphics", kind = "framework")]
+extern {
+    fn CGGradientCreateWithColorComponents(color_space: ::sys::CGColorSpaceRef, components: *const CGFloat, locations: *const CGFloat, count: size_t) -> ::sys::CGGradientRef;
+    fn CGGradientCreateWithColors(color_space: ::sys::CGColorSpaceRef, colors: CFArrayRef, locations: *const CGFloat) -> ::sys::CGGradientRef;
+}
+