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Diffstat (limited to 'layout/style/StyleColor.cpp')
-rw-r--r-- | layout/style/StyleColor.cpp | 81 |
1 files changed, 81 insertions, 0 deletions
diff --git a/layout/style/StyleColor.cpp b/layout/style/StyleColor.cpp new file mode 100644 index 0000000000..df58cf093d --- /dev/null +++ b/layout/style/StyleColor.cpp @@ -0,0 +1,81 @@ +/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* vim: set ts=8 sts=2 et sw=2 tw=80: */ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +#include "mozilla/StyleColorInlines.h" + +#include "mozilla/ComputedStyle.h" +#include "mozilla/ComputedStyleInlines.h" +#include "mozilla/dom/BindingDeclarations.h" +#include "nsIFrame.h" +#include "nsStyleStruct.h" + +namespace mozilla { + +template <> +bool StyleColor::MaybeTransparent() const { + // We know that the color is opaque when it's a numeric color with + // alpha == 1.0. + return !IsAbsolute() || AsAbsolute().alpha != 1.0f; +} + +template <> +StyleAbsoluteColor StyleColor::ResolveColor( + const StyleAbsoluteColor& aForegroundColor) const { + if (IsAbsolute()) { + return AsAbsolute(); + } + + if (IsCurrentColor()) { + return aForegroundColor; + } + + MOZ_ASSERT(IsColorMix(), "should be the only type left at this point."); + return Servo_ResolveColor(this, &aForegroundColor); +} + +template <> +nscolor StyleColor::CalcColor(nscolor aColor) const { + return ResolveColor(StyleAbsoluteColor::FromColor(aColor)).ToColor(); +} + +template <> +nscolor StyleColor::CalcColor( + const StyleAbsoluteColor& aForegroundColor) const { + return ResolveColor(aForegroundColor).ToColor(); +} + +template <> +nscolor StyleColor::CalcColor(const ComputedStyle& aStyle) const { + return ResolveColor(aStyle.StyleText()->mColor).ToColor(); +} + +template <> +nscolor StyleColor::CalcColor(const nsIFrame* aFrame) const { + return ResolveColor(aFrame->StyleText()->mColor).ToColor(); +} + +StyleAbsoluteColor StyleAbsoluteColor::ToColorSpace( + StyleColorSpace aColorSpace) const { + return Servo_ConvertColorSpace(this, aColorSpace); +} + +nscolor StyleAbsoluteColor::ToColor() const { + auto srgb = ToColorSpace(StyleColorSpace::Srgb); + + // TODO(tlouw): Needs gamut mapping here. Right now we just hard clip the + // components to [0..1], which will yield invalid colors. + // https://bugzilla.mozilla.org/show_bug.cgi?id=1626624 + auto red = std::clamp(srgb.components._0, 0.0f, 1.0f); + auto green = std::clamp(srgb.components._1, 0.0f, 1.0f); + auto blue = std::clamp(srgb.components._2, 0.0f, 1.0f); + + return NS_RGBA(nsStyleUtil::FloatToColorComponent(red), + nsStyleUtil::FloatToColorComponent(green), + nsStyleUtil::FloatToColorComponent(blue), + nsStyleUtil::FloatToColorComponent(srgb.alpha)); +} + +} // namespace mozilla |