| /* |
| * Copyright (C) 2006 Nikolas Zimmermann <zimmermann@kde.org> |
| * Copyright (C) 2008 Eric Seidel <eric@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 LayoutSVGResourceGradient_h |
| #define LayoutSVGResourceGradient_h |
| |
| #include <memory> |
| #include "core/layout/svg/LayoutSVGResourcePaintServer.h" |
| #include "core/svg/SVGGradientElement.h" |
| #include "platform/graphics/Gradient.h" |
| #include "platform/transforms/AffineTransform.h" |
| #include "platform/wtf/HashMap.h" |
| |
| namespace blink { |
| |
| struct GradientData { |
| USING_FAST_MALLOC(GradientData); |
| |
| public: |
| scoped_refptr<Gradient> gradient; |
| AffineTransform userspace_transform; |
| }; |
| |
| class LayoutSVGResourceGradient : public LayoutSVGResourcePaintServer { |
| public: |
| explicit LayoutSVGResourceGradient(SVGGradientElement*); |
| |
| void RemoveAllClientsFromCache(bool mark_for_invalidation = true) final; |
| void RemoveClientFromCache(LayoutObject*, |
| bool mark_for_invalidation = true) final; |
| |
| SVGPaintServer PreparePaintServer(const LayoutObject&) final; |
| |
| bool IsChildAllowed(LayoutObject* child, const ComputedStyle&) const final; |
| |
| protected: |
| virtual SVGUnitTypes::SVGUnitType GradientUnits() const = 0; |
| virtual AffineTransform CalculateGradientTransform() const = 0; |
| virtual bool CollectGradientAttributes() = 0; |
| virtual scoped_refptr<Gradient> BuildGradient() const = 0; |
| |
| static GradientSpreadMethod PlatformSpreadMethodFromSVGType( |
| SVGSpreadMethodType); |
| |
| private: |
| bool should_collect_gradient_attributes_ : 1; |
| HashMap<const LayoutObject*, std::unique_ptr<GradientData>> gradient_map_; |
| }; |
| |
| } // namespace blink |
| |
| #endif |