gecko-dev/layout/style/StyleColor.cpp

59 строки
1.6 KiB
C++

/* -*- 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 "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 == 255.
return !IsNumeric() || AsNumeric().alpha != 255;
}
template <>
nscolor StyleColor::CalcColor(nscolor aColor) const {
return CalcColor(StyleRGBA::FromColor(aColor));
}
template <>
nscolor StyleColor::CalcColor(const StyleRGBA& aForegroundColor) const {
if (IsNumeric()) {
return AsNumeric().ToColor();
}
if (IsCurrentColor()) {
return aForegroundColor.ToColor();
}
MOZ_ASSERT(IsColorMix());
return Servo_ResolveColor(this, &aForegroundColor);
}
template <>
nscolor StyleColor::CalcColor(const ComputedStyle& aStyle) const {
// Common case that is numeric color, which is pure background, we
// can skip resolving StyleText().
if (IsNumeric()) {
return AsNumeric().ToColor();
}
return CalcColor(aStyle.StyleText()->mColor);
}
template <>
nscolor StyleColor::CalcColor(const nsIFrame* aFrame) const {
if (IsNumeric()) {
return AsNumeric().ToColor();
}
return CalcColor(aFrame->StyleText()->mColor);
}
} // namespace mozilla