| /* |
| * 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. |
| */ |
| |
| #ifndef SVGFilterBuilder_h |
| #define SVGFilterBuilder_h |
| |
| #if ENABLE(SVG) && ENABLE(FILTERS) |
| #include "FilterEffect.h" |
| #include "PlatformString.h" |
| #include "RenderObject.h" |
| |
| #include <wtf/HashMap.h> |
| #include <wtf/HashSet.h> |
| #include <wtf/PassRefPtr.h> |
| #include <wtf/text/AtomicStringHash.h> |
| |
| namespace WebCore { |
| |
| class SVGFilterBuilder : public RefCounted<SVGFilterBuilder> { |
| public: |
| typedef HashSet<FilterEffect*> FilterEffectSet; |
| |
| static PassRefPtr<SVGFilterBuilder> create(Filter* filter) { return adoptRef(new SVGFilterBuilder(filter)); } |
| |
| void add(const AtomicString& id, RefPtr<FilterEffect> effect); |
| |
| FilterEffect* getEffectById(const AtomicString& id) 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)->second; |
| } |
| |
| // 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: |
| SVGFilterBuilder(Filter*); |
| |
| inline void addBuiltinEffects() |
| { |
| HashMap<AtomicString, RefPtr<FilterEffect> >::iterator end = m_builtinEffects.end(); |
| for (HashMap<AtomicString, RefPtr<FilterEffect> >::iterator iterator = m_builtinEffects.begin(); iterator != end; ++iterator) |
| m_effectReferences.add(iterator->second, FilterEffectSet()); |
| } |
| |
| HashMap<AtomicString, RefPtr<FilterEffect> > m_builtinEffects; |
| HashMap<AtomicString, 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; |
| }; |
| |
| } // namespace WebCore |
| |
| #endif // ENABLE(SVG) && ENABLE(FILTERS) |
| #endif // SVGFilterBuilder_h |