| /* |
| * Copyright (C) 2008 Alex Mathews <possessedpenguinbob@gmail.com> |
| * Copyright (C) 2009 Dirk Schulze <krit@webkit.org> |
| * 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 "FilterEffect.h" |
| #include "FilterEffectVector.h" |
| #include "SVGFilterExpression.h" |
| #include "SVGUnitTypes.h" |
| #include <wtf/HashMap.h> |
| #include <wtf/text/AtomStringHash.h> |
| #include <wtf/text/WTFString.h> |
| |
| namespace WebCore { |
| |
| class FilterEffect; |
| class RenderObject; |
| class SVGFilterElement; |
| |
| class SVGFilterBuilder { |
| WTF_MAKE_FAST_ALLOCATED; |
| public: |
| SVGFilterBuilder() = default; |
| |
| void setTargetBoundingBox(const FloatRect& r) { m_targetBoundingBox = r; } |
| FloatRect targetBoundingBox() const { return m_targetBoundingBox; } |
| |
| SVGUnitTypes::SVGUnitType primitiveUnits() const { return m_primitiveUnits; } |
| void setPrimitiveUnits(SVGUnitTypes::SVGUnitType units) { m_primitiveUnits = units; } |
| |
| // Required to change the attributes of a filter during an svgAttributeChanged. |
| void appendEffectToEffectRenderer(FilterEffect&, RenderObject&); |
| inline FilterEffect* effectByRenderer(RenderObject* object) { return m_effectRenderer.get(object); } |
| |
| void setupBuiltinEffects(Ref<FilterEffect> sourceGraphic); |
| RefPtr<FilterEffect> buildFilterEffects(SVGFilterElement&); |
| bool buildExpression(SVGFilterExpression&) const; |
| |
| private: |
| FilterEffect& sourceGraphic() const; |
| FilterEffect& sourceAlpha() const; |
| |
| RefPtr<FilterEffect> namedEffect(const AtomString&) const; |
| std::optional<FilterEffectVector> namedEffects(Span<const AtomString>) const; |
| |
| void addNamedEffect(const AtomString& id, Ref<FilterEffect>&&); |
| void setEffectInputs(FilterEffect&, FilterEffectVector&& inputs); |
| |
| std::optional<FilterEffectGeometry> effectGeometry(FilterEffect&) const; |
| bool buildEffectExpression(FilterEffect&, FilterEffectVector& stack, unsigned level, SVGFilterExpression&) const; |
| |
| HashMap<AtomString, Ref<FilterEffect>> m_builtinEffects; |
| HashMap<AtomString, Ref<FilterEffect>> m_namedEffects; |
| HashMap<RenderObject*, FilterEffect*> m_effectRenderer; |
| HashMap<Ref<FilterEffect>, FilterEffectVector> m_inputsMap; |
| |
| RefPtr<FilterEffect> m_lastEffect; |
| |
| FloatRect m_targetBoundingBox; |
| SVGUnitTypes::SVGUnitType m_primitiveUnits { SVGUnitTypes::SVG_UNIT_TYPE_USERSPACEONUSE }; |
| FilterEffectGeometryMap m_effectGeometryMap; |
| }; |
| |
| } // namespace WebCore |