| /* |
| * Copyright (C) 2008 Alex Mathews <possessedpenguinbob@gmail.com> |
| * Copyright (C) 2009 Dirk Schulze <krit@webkit.org> |
| * |
| * 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 "SVGUnitTypes.h" |
| #include <wtf/HashMap.h> |
| #include <wtf/HashSet.h> |
| #include <wtf/text/AtomStringHash.h> |
| #include <wtf/text/WTFString.h> |
| |
| namespace WebCore { |
| |
| class RenderObject; |
| class SVGFilterElement; |
| |
| class SVGFilterBuilder { |
| WTF_MAKE_FAST_ALLOCATED; |
| public: |
| typedef HashSet<FilterEffect*> FilterEffectSet; |
| |
| SVGFilterBuilder(RefPtr<FilterEffect> sourceGraphic); |
| |
| 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; } |
| |
| void add(const AtomString& id, RefPtr<FilterEffect>); |
| |
| RefPtr<FilterEffect> getEffectById(const AtomString&) const; |
| FilterEffect* lastEffect() const { return m_lastEffect.get(); } |
| |
| void appendEffectToEffectReferences(RefPtr<FilterEffect>&&, RenderObject*); |
| |
| inline FilterEffectSet& effectReferences(FilterEffect* effect) |
| { |
| // Only allowed for effects belongs to this builder. |
| ASSERT(m_effectReferences.contains(effect)); |
| return m_effectReferences.find(effect)->value; |
| } |
| |
| // Required to change the attributes of a filter during an svgAttributeChanged. |
| inline FilterEffect* effectByRenderer(RenderObject* object) { return m_effectRenderer.get(object); } |
| |
| void clearEffects(); |
| void clearResultsRecursive(FilterEffect*); |
| |
| private: |
| inline void addBuiltinEffects() |
| { |
| for (auto& effect : m_builtinEffects.values()) |
| m_effectReferences.add(effect, FilterEffectSet()); |
| } |
| |
| HashMap<AtomString, RefPtr<FilterEffect>> m_builtinEffects; |
| HashMap<AtomString, RefPtr<FilterEffect>> m_namedEffects; |
| // The value is a list, which contains those filter effects, |
| // which depends on the key filter effect. |
| HashMap<RefPtr<FilterEffect>, FilterEffectSet> m_effectReferences; |
| HashMap<RenderObject*, FilterEffect*> m_effectRenderer; |
| |
| RefPtr<FilterEffect> m_lastEffect; |
| FloatRect m_targetBoundingBox; |
| SVGUnitTypes::SVGUnitType m_primitiveUnits { SVGUnitTypes::SVG_UNIT_TYPE_USERSPACEONUSE }; |
| }; |
| |
| } // namespace WebCore |