| /* |
| * Copyright (C) 2009 Dirk Schulze <krit@webkit.org> |
| * Copyright (C) 2013 Google Inc. All rights reserved. |
| * Copyright (C) 2021-2022 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 "Filter.h" |
| #include "FloatRect.h" |
| #include "SVGFilterExpression.h" |
| #include "SVGUnitTypes.h" |
| #include <wtf/Ref.h> |
| #include <wtf/TypeCasts.h> |
| |
| namespace WebCore { |
| |
| class FilterImage; |
| class GraphicsContext; |
| class SVGFilterElement; |
| |
| class SVGFilter final : public Filter { |
| public: |
| static RefPtr<SVGFilter> create(SVGFilterElement&, RenderingMode, const FloatSize& filterScale, ClipOperation, const FloatRect& filterRegion, const FloatRect& targetBoundingBox, const GraphicsContext& destinationContext); |
| WEBCORE_EXPORT static RefPtr<SVGFilter> create(const FloatRect& targetBoundingBox, SVGUnitTypes::SVGUnitType primitiveUnits, SVGFilterExpression&&); |
| |
| static IntOutsets calculateOutsets(SVGFilterElement&, const FloatRect& targetBoundingBox); |
| |
| FloatRect targetBoundingBox() const { return m_targetBoundingBox; } |
| SVGUnitTypes::SVGUnitType primitiveUnits() const { return m_primitiveUnits; } |
| |
| const SVGFilterExpression& expression() const { return m_expression; } |
| |
| FilterEffectVector effectsOfType(FilterFunction::Type) const final; |
| |
| RefPtr<FilterImage> apply(FilterImage* sourceImage, FilterResults&) final; |
| |
| static FloatSize calculateResolvedSize(const FloatSize&, const FloatRect& targetBoundingBox, SVGUnitTypes::SVGUnitType primitiveUnits); |
| |
| WTF::TextStream& externalRepresentation(WTF::TextStream&, FilterRepresentation) const final; |
| |
| private: |
| SVGFilter(RenderingMode, const FloatSize& filterScale, ClipOperation, const FloatRect& filterRegion, const FloatRect& targetBoundingBox, SVGUnitTypes::SVGUnitType primitiveUnits); |
| SVGFilter(const FloatRect& targetBoundingBox, SVGUnitTypes::SVGUnitType primitiveUnits, SVGFilterExpression&&); |
| |
| static std::optional<SVGFilterExpression> buildExpression(SVGFilterElement&, const SVGFilter&, const GraphicsContext& destinationContext); |
| void setExpression(SVGFilterExpression&& expression) { m_expression = WTFMove(expression); } |
| |
| FloatSize resolvedSize(const FloatSize&) const final; |
| FloatPoint3D resolvedPoint3D(const FloatPoint3D&) const final; |
| |
| bool supportsAcceleratedRendering() const final; |
| |
| RefPtr<FilterImage> apply(const Filter&, FilterImage& sourceImage, FilterResults&) final; |
| |
| FloatRect m_targetBoundingBox; |
| SVGUnitTypes::SVGUnitType m_primitiveUnits; |
| |
| SVGFilterExpression m_expression; |
| }; |
| |
| } // namespace WebCore |
| |
| SPECIALIZE_TYPE_TRAITS_BEGIN(WebCore::SVGFilter) |
| static bool isType(const WebCore::Filter& filter) { return filter.isSVGFilter(); } |
| static bool isType(const WebCore::FilterFunction& function) { return function.isSVGFilter(); } |
| SPECIALIZE_TYPE_TRAITS_END() |