62 lines
2.2 KiB
Rust
62 lines
2.2 KiB
Rust
// Copyright 2013 The Servo Project Developers. See the COPYRIGHT
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// file at the top-level directory of this distribution.
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//
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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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#![allow(non_upper_case_globals)]
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use base::CGFloat;
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use color::CGColor;
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use color_space::CGColorSpace;
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use core_foundation::array::{ CFArray, CFArrayRef };
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use core_foundation::base::{CFRelease, CFRetain, TCFType};
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use foreign_types::ForeignType;
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use libc::size_t;
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bitflags! {
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#[repr(C)]
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pub struct CGGradientDrawingOptions: u32 {
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const CGGradientDrawsBeforeStartLocation = (1 << 0);
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const CGGradientDrawsAfterEndLocation = (1 << 1);
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}
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}
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foreign_type! {
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#[doc(hidden)]
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type CType = ::sys::CGGradient;
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fn drop = |p| CFRelease(p as *mut _);
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fn clone = |p| CFRetain(p as *const _) as *mut _;
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pub struct CGGradient;
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pub struct CGGradientRef;
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}
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impl CGGradient {
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pub fn create_with_color_components(color_space: &CGColorSpace, components: &[CGFloat], locations: &[CGFloat], count: usize) -> CGGradient {
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unsafe {
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let result = CGGradientCreateWithColorComponents(color_space.as_ptr(), components.as_ptr(), locations.as_ptr(), count);
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assert!(!result.is_null());
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Self::from_ptr(result)
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}
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}
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pub fn create_with_colors(color_space: &CGColorSpace, colors: &CFArray<CGColor>, locations: &[CGFloat]) -> CGGradient {
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unsafe {
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let result = CGGradientCreateWithColors(color_space.as_ptr(), colors.as_concrete_TypeRef(), locations.as_ptr());
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assert!(!result.is_null());
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Self::from_ptr(result)
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}
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}
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}
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#[link(name = "CoreGraphics", kind = "framework")]
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extern {
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fn CGGradientCreateWithColorComponents(color_space: ::sys::CGColorSpaceRef, components: *const CGFloat, locations: *const CGFloat, count: size_t) -> ::sys::CGGradientRef;
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fn CGGradientCreateWithColors(color_space: ::sys::CGColorSpaceRef, colors: CFArrayRef, locations: *const CGFloat) -> ::sys::CGGradientRef;
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}
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