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#pragma once
21
22#include "RenderSVGShape.h"
23#include "RenderStyleConstants.h"
24#include <wtf/TypeCasts.h>
25
26namespace WebCore {
27
28enum RenderSVGResourceType {
29 MaskerResourceType,
30 MarkerResourceType,
31 PatternResourceType,
32 LinearGradientResourceType,
33 RadialGradientResourceType,
34 SolidColorResourceType,
35 FilterResourceType,
36 ClipperResourceType
37};
38
39// If this enum changes change the unsigned bitfields using it.
40enum class RenderSVGResourceMode {
41 ApplyToFill = 1 << 0,
42 ApplyToStroke = 1 << 1,
43 ApplyToText = 1 << 2 // used in combination with ApplyTo{Fill|Stroke}Mode
44};
45
46class Color;
47class FloatRect;
48class GraphicsContext;
49class Path;
50class RenderObject;
51class RenderStyle;
52class RenderSVGResourceSolidColor;
53
54class RenderSVGResource {
55public:
56 RenderSVGResource() = default;
57 virtual ~RenderSVGResource() = default;
58
59 virtual void removeAllClientsFromCache(bool markForInvalidation = true) = 0;
60 virtual void removeClientFromCache(RenderElement&, bool markForInvalidation = true) = 0;
61
62 virtual bool applyResource(RenderElement&, const RenderStyle&, GraphicsContext*&, OptionSet<RenderSVGResourceMode>) = 0;
63 virtual void postApplyResource(RenderElement&, GraphicsContext*&, OptionSet<RenderSVGResourceMode>, const Path*, const RenderSVGShape*) { }
64 virtual FloatRect resourceBoundingBox(const RenderObject&) = 0;
65
66 virtual RenderSVGResourceType resourceType() const = 0;
67
68 // Helper utilities used in the render tree to access resources used for painting shapes/text (gradients & patterns & solid colors only)
69 static RenderSVGResource* fillPaintingResource(RenderElement&, const RenderStyle&, Color& fallbackColor);
70 static RenderSVGResource* strokePaintingResource(RenderElement&, const RenderStyle&, Color& fallbackColor);
71 static RenderSVGResourceSolidColor* sharedSolidPaintingResource();
72
73 static void markForLayoutAndParentResourceInvalidation(RenderObject&, bool needsLayout = true);
74};
75
76} // namespace WebCore
77
78#define SPECIALIZE_TYPE_TRAITS_RENDER_SVG_RESOURCE(ToValueTypeName, ResourceType) \
79SPECIALIZE_TYPE_TRAITS_BEGIN(WebCore::ToValueTypeName) \
80 static bool isType(const WebCore::RenderSVGResource& resource) { return resource.resourceType() == WebCore::ResourceType; } \
81SPECIALIZE_TYPE_TRAITS_END()
82