1/* 2 * Copyright (C) Research In Motion Limited 2009-2010. All rights reserved. 3 * 4 * This library is free software; you can redistribute it and/or 5 * modify it under the terms of the GNU Library General Public 6 * License as published by the Free Software Foundation; either 7 * version 2 of the License, or (at your option) any later version. 8 * 9 * This library is distributed in the hope that it will be useful, 10 * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 12 * Library General Public License for more details. 13 * 14 * You should have received a copy of the GNU Library General Public License 15 * along with this library; see the file COPYING.LIB. If not, write to 16 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, 17 * Boston, MA 02110-1301, USA. 18 */ 19 20#ifndef RenderSVGResource_h 21#define RenderSVGResource_h 22 23#include "RenderSVGShape.h" 24#include "RenderStyleConstants.h" 25#include "SVGDocumentExtensions.h" 26 27namespace WebCore { 28 29enum RenderSVGResourceType { 30 MaskerResourceType, 31 MarkerResourceType, 32 PatternResourceType, 33 LinearGradientResourceType, 34 RadialGradientResourceType, 35 SolidColorResourceType, 36 FilterResourceType, 37 ClipperResourceType 38}; 39 40// If this enum changes change the unsigned bitfields using it. 41enum RenderSVGResourceMode { 42 ApplyToDefaultMode = 1 << 0, // used for all resources except gradient/pattern 43 ApplyToFillMode = 1 << 1, 44 ApplyToStrokeMode = 1 << 2, 45 ApplyToTextMode = 1 << 3 // used in combination with ApplyTo{Fill|Stroke}Mode 46}; 47 48class Color; 49class FloatRect; 50class GraphicsContext; 51class Path; 52class RenderObject; 53class RenderStyle; 54class RenderSVGResourceSolidColor; 55 56class RenderSVGResource { 57public: 58 RenderSVGResource() { } 59 virtual ~RenderSVGResource() { } 60 61 virtual void removeAllClientsFromCache(bool markForInvalidation = true) = 0; 62 virtual void removeClientFromCache(RenderElement&, bool markForInvalidation = true) = 0; 63 64 virtual bool applyResource(RenderElement&, const RenderStyle&, GraphicsContext*&, unsigned short resourceMode) = 0; 65 virtual void postApplyResource(RenderElement&, GraphicsContext*&, unsigned short, const Path*, const RenderSVGShape*) { } 66 virtual FloatRect resourceBoundingBox(const RenderObject&) = 0; 67 68 virtual RenderSVGResourceType resourceType() const = 0; 69 70 template<class Renderer> 71 Renderer* cast() 72 { 73 if (Renderer::s_resourceType == resourceType()) 74 return static_cast<Renderer*>(this); 75 76 return 0; 77 } 78 79 // Helper utilities used in the render tree to access resources used for painting shapes/text (gradients & patterns & solid colors only) 80 static RenderSVGResource* fillPaintingResource(RenderElement&, const RenderStyle&, Color& fallbackColor); 81 static RenderSVGResource* strokePaintingResource(RenderElement&, const RenderStyle&, Color& fallbackColor); 82 static RenderSVGResourceSolidColor* sharedSolidPaintingResource(); 83 84 static void markForLayoutAndParentResourceInvalidation(RenderObject&, bool needsLayout = true); 85}; 86 87} 88 89#endif 90