| /* |
| * Copyright (C) 2004, 2005, 2006, 2007 Nikolas Zimmermann <zimmermann@kde.org> |
| * Copyright (C) 2004, 2005 Rob Buis <buis@kde.org> |
| * Copyright (C) 2005 Eric Seidel <eric@webkit.org> |
| * Copyright (C) 2009 Dirk Schulze <krit@webkit.org> |
| * Copyright (C) Research In Motion Limited 2010. 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. |
| */ |
| |
| #ifndef RenderSVGResourceFilter_h |
| #define RenderSVGResourceFilter_h |
| |
| #include "core/rendering/svg/RenderSVGResourceContainer.h" |
| #include "core/svg/SVGFilterElement.h" |
| #include "core/svg/graphics/filters/SVGFilter.h" |
| #include "core/svg/graphics/filters/SVGFilterBuilder.h" |
| |
| namespace blink { |
| |
| struct FilterData { |
| WTF_MAKE_FAST_ALLOCATED; |
| public: |
| enum FilterDataState { PaintingSource, Built, CycleDetected }; |
| |
| FilterData() |
| : state(PaintingSource) |
| { |
| } |
| |
| RefPtr<SVGFilter> filter; |
| RefPtr<SVGFilterBuilder> builder; |
| FloatRect boundaries; |
| FloatRect drawingRegion; |
| FilterDataState state; |
| }; |
| |
| class GraphicsContext; |
| |
| class RenderSVGResourceFilter final : public RenderSVGResourceContainer { |
| public: |
| explicit RenderSVGResourceFilter(SVGFilterElement*); |
| virtual ~RenderSVGResourceFilter(); |
| virtual void destroy() override; |
| |
| virtual bool isChildAllowed(RenderObject*, RenderStyle*) const override; |
| |
| virtual const char* renderName() const override { return "RenderSVGResourceFilter"; } |
| virtual bool isOfType(RenderObjectType type) const override { return type == RenderObjectSVGResourceFilter || RenderSVGResourceContainer::isOfType(type); } |
| |
| virtual void removeAllClientsFromCache(bool markForInvalidation = true) override; |
| virtual void removeClientFromCache(RenderObject*, bool markForInvalidation = true) override; |
| |
| bool prepareEffect(RenderObject*, GraphicsContext*&); |
| void finishEffect(RenderObject*, GraphicsContext*&); |
| |
| FloatRect resourceBoundingBox(const RenderObject*); |
| |
| PassRefPtr<SVGFilterBuilder> buildPrimitives(SVGFilter*); |
| |
| SVGUnitTypes::SVGUnitType filterUnits() const { return toSVGFilterElement(element())->filterUnits()->currentValue()->enumValue(); } |
| SVGUnitTypes::SVGUnitType primitiveUnits() const { return toSVGFilterElement(element())->primitiveUnits()->currentValue()->enumValue(); } |
| |
| void primitiveAttributeChanged(RenderObject*, const QualifiedName&); |
| |
| static const RenderSVGResourceType s_resourceType = FilterResourceType; |
| virtual RenderSVGResourceType resourceType() const override { return s_resourceType; } |
| |
| FloatRect drawingRegion(RenderObject*) const; |
| private: |
| typedef HashMap<RenderObject*, OwnPtr<FilterData> > FilterMap; |
| FilterMap m_filter; |
| }; |
| |
| DEFINE_RENDER_OBJECT_TYPE_CASTS(RenderSVGResourceFilter, isSVGResourceFilter()); |
| |
| } |
| |
| #endif |