The Tor Browser / file comparison
comparison: layout/base/nsCSSColorUtils.h
layout/base/nsCSSColorUtils.h
- branch
- TOR_BUG_9701
- changeset 15
- b8a032363ba2
equal
deleted
inserted
replaced
| -1:000000000000 | 0:839749da9ccb |
|---|---|
| 1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ | |
| 2 /* This Source Code Form is subject to the terms of the Mozilla Public | |
| 3 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 5 | |
| 6 /* functions that manipulate colors */ | |
| 7 | |
| 8 #ifndef __nsCSSColorUtils_h | |
| 9 #define __nsCSSColorUtils_h | |
| 10 | |
| 11 #include "nsColor.h" | |
| 12 | |
| 13 // "Sufficient contrast" is determined by | |
| 14 // "Techniques For Accessibility Evalution And Repair Tools". | |
| 15 // See http://www.w3.org/TR/AERT#color-contrast | |
| 16 #define NS_SUFFICIENT_LUMINOSITY_DIFFERENCE 125000 | |
| 17 #define NS_LUMINOSITY_DIFFERENCE(a, b) \ | |
| 18 int32_t(mozilla::Abs(NS_GetLuminosity(a) - NS_GetLuminosity(b))) | |
| 19 | |
| 20 // To determine colors based on the background brightness and border color | |
| 21 void NS_GetSpecial3DColors(nscolor aResult[2], | |
| 22 nscolor aBackgroundColor, | |
| 23 nscolor aBorderColor); | |
| 24 | |
| 25 // Determins brightness for a specific color | |
| 26 int NS_GetBrightness(uint8_t aRed, uint8_t aGreen, uint8_t aBlue); | |
| 27 | |
| 28 // Get Luminosity of a specific color. That is same as Y of YIQ color space. | |
| 29 // The range of return value is 0 to 255000. | |
| 30 int32_t NS_GetLuminosity(nscolor aColor); | |
| 31 | |
| 32 // function to convert from RGBA color space to HSVA color space | |
| 33 void NS_RGB2HSV(nscolor aColor, uint16_t &aHue, uint16_t &aSat, | |
| 34 uint16_t &aValue, uint8_t &aAlpha); | |
| 35 | |
| 36 // function to convert from HSVA color space to RGBA color space | |
| 37 void NS_HSV2RGB(nscolor &aColor, uint16_t aHue, uint16_t aSat, uint16_t aValue, | |
| 38 uint8_t aAlpha); | |
| 39 | |
| 40 #endif |
