| /* |
| * 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 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 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 "Color.h" |
| #include <optional> |
| #include <wtf/Forward.h> |
| #include <wtf/Hasher.h> |
| |
| namespace WebCore { |
| |
| struct GradientColorStop { |
| float offset { 0 }; |
| Color color; |
| |
| template<typename Encoder> void encode(Encoder&) const; |
| template<typename Decoder> static std::optional<GradientColorStop> decode(Decoder&); |
| }; |
| |
| template<typename Encoder> void GradientColorStop::encode(Encoder& encoder) const |
| { |
| encoder << offset; |
| encoder << color; |
| } |
| |
| template<typename Decoder> std::optional<GradientColorStop> GradientColorStop::decode(Decoder& decoder) |
| { |
| std::optional<float> offset; |
| decoder >> offset; |
| if (!offset) |
| return std::nullopt; |
| |
| std::optional<Color> color; |
| decoder >> color; |
| if (!color) |
| return std::nullopt; |
| |
| return {{ *offset, *color }}; |
| } |
| |
| inline void add(Hasher& hasher, const GradientColorStop& stop) |
| { |
| add(hasher, stop.offset, stop.color); |
| } |
| |
| TextStream& operator<<(TextStream&, const GradientColorStop&); |
| |
| } // namespace WebCore |