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/*
* Copyright (C) 2021 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
#pragma once
#include <WebCore/Color.h>
#include <WebCore/Gradient.h>
#include <wtf/HashFunctions.h>
#include <wtf/Vector.h>
#include <wtf/text/AtomString.h>
namespace WebCore {
struct FontPaletteIndex {
enum class Type : uint8_t;
FontPaletteIndex() = default;
FontPaletteIndex(Type type)
: type(type)
{
ASSERT(type == Type::Light || type == Type::Dark);
}
FontPaletteIndex(unsigned integer)
: type(Type::Integer)
, integer(integer)
{
}
operator bool() const
{
return type != Type::Integer || integer;
}
bool operator==(const FontPaletteIndex& other) const
{
if (type != other.type)
return false;
if (type == Type::Integer)
return integer == other.integer;
return true;
}
enum class Type : uint8_t {
Light,
Dark,
Integer
};
Type type { Type::Integer };
unsigned integer { 0 };
};
inline void add(Hasher& hasher, const FontPaletteIndex& paletteIndex)
{
add(hasher, paletteIndex.type);
if (paletteIndex.type == FontPaletteIndex::Type::Integer)
add(hasher, paletteIndex.integer);
}
class FontPaletteValues {
public:
using OverriddenColor = std::pair<unsigned, Color>;
FontPaletteValues() = default;
FontPaletteValues(std::optional<FontPaletteIndex> basePalette, Vector<OverriddenColor>&& overrideColors)
: m_basePalette(basePalette)
, m_overrideColors(WTFMove(overrideColors))
{
}
std::optional<FontPaletteIndex> basePalette() const
{
return m_basePalette;
}
const Vector<OverriddenColor>& overrideColors() const
{
return m_overrideColors;
}
operator bool() const
{
return m_basePalette || !m_overrideColors.isEmpty();
}
bool operator==(const FontPaletteValues& other) const
{
return m_basePalette == other.m_basePalette && m_overrideColors == other.m_overrideColors;
}
static constexpr bool safeToCompareToHashTableEmptyOrDeletedValue = true;
private:
std::optional<FontPaletteIndex> m_basePalette;
Vector<OverriddenColor> m_overrideColors;
};
inline void add(Hasher& hasher, const FontPaletteValues& fontPaletteValues)
{
add(hasher, fontPaletteValues.basePalette());
add(hasher, fontPaletteValues.overrideColors());
}
} // namespace WebCore
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