values.rs (1263B)
1 /* This Source Code Form is subject to the terms of the Mozilla Public 2 * License, v. 2.0. If a copy of the MPL was not distributed with this 3 * file, You can obtain one at https://mozilla.org/MPL/2.0/. */ 4 5 #![allow(unsafe_code)] 6 7 //! Different kind of helpers to interact with Gecko values. 8 9 use crate::color::{AbsoluteColor, ColorSpace}; 10 11 /// Convert a color value to `nscolor`. 12 pub fn convert_absolute_color_to_nscolor(color: &AbsoluteColor) -> u32 { 13 let srgb = color.to_color_space(ColorSpace::Srgb); 14 u32::from_le_bytes([ 15 (srgb.components.0 * 255.0).round() as u8, 16 (srgb.components.1 * 255.0).round() as u8, 17 (srgb.components.2 * 255.0).round() as u8, 18 (srgb.alpha * 255.0).round() as u8, 19 ]) 20 } 21 22 /// Convert a given `nscolor` to a Servo AbsoluteColor value. 23 pub fn convert_nscolor_to_absolute_color(color: u32) -> AbsoluteColor { 24 let [r, g, b, a] = color.to_le_bytes(); 25 AbsoluteColor::srgb_legacy(r, g, b, a as f32 / 255.0) 26 } 27 28 #[test] 29 fn convert_ns_color_to_absolute_color_should_be_in_legacy_syntax() { 30 use crate::color::ColorFlags; 31 32 let result = convert_nscolor_to_absolute_color(0x336699CC); 33 assert!(result.flags.contains(ColorFlags::IS_LEGACY_SRGB)); 34 35 assert!(result.is_legacy_syntax()); 36 }