2 * Copyright (C) Research In Motion Limited 2010. All rights reserved.
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.
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.
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.
20 #ifndef RenderSVGResourceContainer_h
21 #define RenderSVGResourceContainer_h
23 #include "core/rendering/svg/RenderSVGHiddenContainer.h"
24 #include "core/rendering/svg/RenderSVGResource.h"
25 #include "core/svg/SVGDocumentExtensions.h"
31 class RenderSVGResourceContainer : public RenderSVGHiddenContainer,
32 public RenderSVGResource {
34 explicit RenderSVGResourceContainer(SVGElement*);
35 virtual ~RenderSVGResourceContainer();
37 virtual void layout() OVERRIDE;
38 virtual void styleDidChange(StyleDifference, const RenderStyle* oldStyle) OVERRIDE FINAL;
40 virtual bool isSVGResourceContainer() const OVERRIDE FINAL { return true; }
42 static AffineTransform transformOnNonScalingStroke(RenderObject*, const AffineTransform& resourceTransform);
45 void addClientRenderLayer(Node*);
46 void addClientRenderLayer(RenderLayer*);
47 void removeClientRenderLayer(RenderLayer*);
49 void invalidateCacheAndMarkForLayout(SubtreeLayoutScope* = 0);
52 // When adding modes, make sure we don't overflow m_invalidationMask below.
53 enum InvalidationMode {
54 LayoutAndBoundariesInvalidation = 1 << 0,
55 BoundariesInvalidation = 1 << 1,
56 PaintInvalidation = 1 << 2,
57 ParentOnlyInvalidation = 1 << 3
60 // Used from the invalidateClient/invalidateClients methods from classes, inheriting from us.
61 void markAllClientsForInvalidation(InvalidationMode);
62 void markAllClientLayersForInvalidation();
63 void markClientForInvalidation(RenderObject*, InvalidationMode);
65 void clearInvalidationMask() { m_invalidationMask = 0; }
67 static AffineTransform computeResourceSpaceTransform(RenderObject*, const AffineTransform& baseTransform, const SVGRenderStyle&, unsigned short resourceMode);
72 friend class SVGResourcesCache;
73 void addClient(RenderObject*);
74 void removeClient(RenderObject*);
76 virtual void willBeDestroyed() OVERRIDE FINAL;
77 void registerResource();
80 // Track global (markAllClientsForInvalidation) invals to avoid redundant crawls.
81 unsigned m_invalidationMask : 8;
83 bool m_registered : 1;
84 bool m_isInvalidating : 1;
85 // 22 padding bits available
87 HashSet<RenderObject*> m_clients;
88 HashSet<RenderLayer*> m_clientLayers;
91 inline RenderSVGResourceContainer* getRenderSVGResourceContainerById(TreeScope& treeScope, const AtomicString& id)
96 if (RenderSVGResourceContainer* renderResource = treeScope.document().accessSVGExtensions().resourceById(id))
97 return renderResource;
102 template<typename Renderer>
103 Renderer* getRenderSVGResourceById(TreeScope& treeScope, const AtomicString& id)
105 if (RenderSVGResourceContainer* container = getRenderSVGResourceContainerById(treeScope, id))
106 return container->cast<Renderer>();
111 DEFINE_RENDER_OBJECT_TYPE_CASTS(RenderSVGResourceContainer, isSVGResourceContainer());