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The Tor Browser
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StyleColorInlines.h (2342B)

      1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
      2 /* vim: set ts=8 sts=2 et sw=2 tw=80: */
      3 /* This Source Code Form is subject to the terms of the Mozilla Public
      4 * License, v. 2.0. If a copy of the MPL was not distributed with this
      5 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
      6 
      7 /* Inline functions for StyleColor (aka values::computed::Color) */
      8 
      9 #ifndef mozilla_StyleColorInlines_h_
     10 #define mozilla_StyleColorInlines_h_
     11 
     12 #include "mozilla/ServoStyleConsts.h"
     13 #include "nsColor.h"
     14 #include "nsStyleUtil.h"
     15 
     16 namespace mozilla {
     17 
     18 inline StyleAbsoluteColor StyleAbsoluteColor::FromColor(nscolor aColor) {
     19  return StyleAbsoluteColor::SrgbLegacy(
     20      NS_GET_R(aColor) / 255.0f, NS_GET_G(aColor) / 255.0f,
     21      NS_GET_B(aColor) / 255.0f, NS_GET_A(aColor) / 255.0f);
     22 }
     23 
     24 // static
     25 inline StyleAbsoluteColor StyleAbsoluteColor::SrgbLegacy(float red, float green,
     26                                                         float blue,
     27                                                         float alpha) {
     28  const auto ToLegacyComponent = [](float aF) {
     29    if (MOZ_UNLIKELY(!std::isfinite(aF))) {
     30      return 0.0f;
     31    }
     32    return aF;
     33  };
     34 
     35  return StyleAbsoluteColor{
     36      StyleColorComponents{ToLegacyComponent(red), ToLegacyComponent(green),
     37                           ToLegacyComponent(blue)},
     38      alpha, StyleColorSpace::Srgb, StyleColorFlags::IS_LEGACY_SRGB};
     39 }
     40 
     41 template <>
     42 inline StyleColor StyleColor::FromColor(nscolor aColor) {
     43  return StyleColor::Absolute(StyleAbsoluteColor::FromColor(aColor));
     44 }
     45 
     46 template <>
     47 inline StyleColor StyleColor::Transparent() {
     48  return StyleColor::Absolute(StyleAbsoluteColor::TRANSPARENT_BLACK);
     49 }
     50 
     51 template <>
     52 inline StyleColor StyleColor::Black() {
     53  return StyleColor::Absolute(StyleAbsoluteColor::BLACK);
     54 }
     55 
     56 template <>
     57 inline StyleColor StyleColor::White() {
     58  return StyleColor::Absolute(StyleAbsoluteColor::WHITE);
     59 }
     60 
     61 template <>
     62 StyleAbsoluteColor StyleColor::ResolveColor(const StyleAbsoluteColor&) const;
     63 
     64 template <>
     65 nscolor StyleColor::CalcColor(const StyleAbsoluteColor&) const;
     66 
     67 template <>
     68 nscolor StyleColor::CalcColor(nscolor) const;
     69 
     70 template <>
     71 nscolor StyleColor::CalcColor(const ComputedStyle&) const;
     72 
     73 template <>
     74 nscolor StyleColor::CalcColor(const nsIFrame*) const;
     75 
     76 }  // namespace mozilla
     77 
     78 #endif  // mozilla_StyleColor_h_