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