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/* -*- 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
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