| /* |
| * Copyright (C) Research In Motion Limited 2011. All rights reserved. |
| * Copyright (C) 2021 Apple Inc. All rights reserved. |
| * |
| * This library is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Library General Public |
| * License as published by the Free Software Foundation; either |
| * version 2 of the License, or (at your option) any later version. |
| * |
| * This library is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * Library General Public License for more details. |
| * |
| * You should have received a copy of the GNU Library General Public License |
| * along with this library; see the file COPYING.LIB. If not, write to |
| * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
| * Boston, MA 02110-1301, USA. |
| */ |
| |
| #pragma once |
| |
| #include "Color.h" |
| #include "FilterEffect.h" |
| |
| namespace WebCore { |
| |
| class FEDropShadow : public FilterEffect { |
| public: |
| WEBCORE_EXPORT static Ref<FEDropShadow> create(float stdX, float stdY, float dx, float dy, const Color& shadowColor, float shadowOpacity); |
| |
| float stdDeviationX() const { return m_stdX; } |
| void setStdDeviationX(float stdX) { m_stdX = stdX; } |
| |
| float stdDeviationY() const { return m_stdY; } |
| void setStdDeviationY(float stdY) { m_stdY = stdY; } |
| |
| float dx() const { return m_dx; } |
| void setDx(float dx) { m_dx = dx; } |
| |
| float dy() const { return m_dy; } |
| void setDy(float dy) { m_dy = dy; } |
| |
| const Color& shadowColor() const { return m_shadowColor; } |
| void setShadowColor(const Color& shadowColor) { m_shadowColor = shadowColor; } |
| |
| float shadowOpacity() const { return m_shadowOpacity; } |
| void setShadowOpacity(float shadowOpacity) { m_shadowOpacity = shadowOpacity; } |
| |
| template<class Encoder> void encode(Encoder&) const; |
| template<class Decoder> static std::optional<Ref<FEDropShadow>> decode(Decoder&); |
| |
| private: |
| FEDropShadow(float stdX, float stdY, float dx, float dy, const Color& shadowColor, float shadowOpacity); |
| |
| FloatRect calculateImageRect(const Filter&, const FilterImageVector& inputs, const FloatRect& primitiveSubregion) const override; |
| |
| IntOutsets outsets() const override; |
| |
| std::unique_ptr<FilterEffectApplier> createApplier(const Filter&) const override; |
| |
| WTF::TextStream& externalRepresentation(WTF::TextStream&, FilterRepresentation) const override; |
| |
| float m_stdX; |
| float m_stdY; |
| float m_dx; |
| float m_dy; |
| Color m_shadowColor; |
| float m_shadowOpacity; |
| }; |
| |
| template<class Encoder> |
| void FEDropShadow::encode(Encoder& encoder) const |
| { |
| encoder << m_stdX; |
| encoder << m_stdY; |
| encoder << m_dx; |
| encoder << m_dy; |
| encoder << m_shadowColor; |
| encoder << m_shadowOpacity; |
| } |
| |
| template<class Decoder> |
| std::optional<Ref<FEDropShadow>> FEDropShadow::decode(Decoder& decoder) |
| { |
| std::optional<float> stdX; |
| decoder >> stdX; |
| if (!stdX) |
| return std::nullopt; |
| |
| std::optional<float> stdY; |
| decoder >> stdY; |
| if (!stdY) |
| return std::nullopt; |
| |
| std::optional<float> dx; |
| decoder >> dx; |
| if (!dx) |
| return std::nullopt; |
| |
| std::optional<float> dy; |
| decoder >> dy; |
| if (!dy) |
| return std::nullopt; |
| |
| std::optional<Color> shadowColor; |
| decoder >> shadowColor; |
| if (!shadowColor) |
| return std::nullopt; |
| |
| std::optional<float> shadowOpacity; |
| decoder >> shadowOpacity; |
| if (!shadowOpacity) |
| return std::nullopt; |
| |
| return FEDropShadow::create(*stdX, *stdY, *dx, *dy, *shadowColor, *shadowOpacity); |
| } |
| |
| } // namespace WebCore |
| |
| SPECIALIZE_TYPE_TRAITS_FILTER_EFFECT(FEDropShadow) |