| /* |
| * Copyright (C) Research In Motion Limited 2009-2010. 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 RenderSVGResourcePaintServer_h |
| #define RenderSVGResourcePaintServer_h |
| |
| #include "core/rendering/svg/RenderSVGResourceContainer.h" |
| #include "platform/graphics/Color.h" |
| #include "platform/graphics/Gradient.h" |
| #include "platform/graphics/Pattern.h" |
| |
| namespace blink { |
| |
| enum RenderSVGResourceMode { |
| ApplyToFillMode, |
| ApplyToStrokeMode, |
| }; |
| |
| class GraphicsContext; |
| class GraphicsContextStateSaver; |
| class RenderObject; |
| class RenderSVGResourcePaintServer; |
| class RenderStyle; |
| |
| class SVGPaintServer { |
| public: |
| explicit SVGPaintServer(Color); |
| explicit SVGPaintServer(PassRefPtr<Gradient>); |
| explicit SVGPaintServer(PassRefPtr<Pattern>); |
| |
| static SVGPaintServer requestForRenderer(const RenderObject&, const RenderStyle*, RenderSVGResourceMode); |
| static bool existsForRenderer(const RenderObject&, const RenderStyle*, RenderSVGResourceMode); |
| |
| void apply(GraphicsContext&, RenderSVGResourceMode, GraphicsContextStateSaver* = 0); |
| |
| static SVGPaintServer invalid() { return SVGPaintServer(Color(Color::transparent)); } |
| bool isValid() const { return m_color != Color::transparent; } |
| |
| bool isTransformDependent() const { return m_gradient || m_pattern; } |
| void prependTransform(const AffineTransform&); |
| |
| private: |
| RefPtr<Gradient> m_gradient; |
| RefPtr<Pattern> m_pattern; |
| Color m_color; |
| }; |
| |
| // If |SVGPaintDescription::hasFallback| is true, |SVGPaintDescription::color| is set to a fallback color. |
| struct SVGPaintDescription { |
| SVGPaintDescription() : resource(nullptr), isValid(false), hasFallback(false) { } |
| SVGPaintDescription(Color color) : resource(nullptr), color(color), isValid(true), hasFallback(false) { } |
| SVGPaintDescription(RenderSVGResourcePaintServer* resource) : resource(resource), isValid(true), hasFallback(false) { ASSERT(resource); } |
| SVGPaintDescription(RenderSVGResourcePaintServer* resource, Color fallbackColor) : resource(resource), color(fallbackColor), isValid(true), hasFallback(true) { ASSERT(resource); } |
| |
| RenderSVGResourcePaintServer* resource; |
| Color color; |
| bool isValid; |
| bool hasFallback; |
| }; |
| |
| class RenderSVGResourcePaintServer : public RenderSVGResourceContainer { |
| public: |
| RenderSVGResourcePaintServer(SVGElement*); |
| virtual ~RenderSVGResourcePaintServer(); |
| |
| virtual SVGPaintServer preparePaintServer(const RenderObject&) = 0; |
| |
| // Helper utilities used in to access the underlying resources for DRT. |
| static SVGPaintDescription requestPaintDescription(const RenderObject&, const RenderStyle*, RenderSVGResourceMode); |
| }; |
| |
| DEFINE_TYPE_CASTS(RenderSVGResourcePaintServer, RenderSVGResourceContainer, resource, resource->isSVGPaintServer(), resource.isSVGPaintServer()); |
| |
| } |
| |
| #endif |