1 /* 2 * Copyright (C) 2006, 2008 Nikolas Zimmermann <zimmermann@kde.org> 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 13 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY 14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR 17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY 21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24 */ 25 26 #ifndef SVGResource_h 27 #define SVGResource_h 28 29 #if ENABLE(SVG) 30 #include "PlatformString.h" 31 #include "RenderObject.h" 32 #include "StringHash.h" 33 34 #include <wtf/HashMap.h> 35 #include <wtf/HashSet.h> 36 #include <wtf/RefCounted.h> 37 38 namespace WebCore { 39 40 class AtomicString; 41 class Document; 42 class SVGStyledElement; 43 class TextStream; 44 45 enum SVGResourceType { 46 // Painting mode 47 ClipperResourceType = 0, 48 MarkerResourceType, 49 ImageResourceType, 50 FilterResourceType, 51 MaskerResourceType, 52 PaintServerResourceType, 53 54 // For resource tracking we need to know how many types of resource there are 55 _ResourceTypeCount 56 }; 57 58 // The SVGResource file represent various graphics resources: 59 // - Filter resource 60 // - Clipper resource 61 // - Masker resource 62 // - Marker resource 63 // - Pattern resource 64 // - Linear/Radial gradient resource 65 // 66 // SVG creates/uses these resources. 67 68 class SVGResource : public RefCounted<SVGResource> { 69 public: 70 virtual ~SVGResource(); 71 72 virtual void invalidate(); 73 74 void addClient(SVGStyledElement*); 75 virtual SVGResourceType resourceType() const = 0; 76 isPaintServer()77 bool isPaintServer() const { return resourceType() == PaintServerResourceType; } isFilter()78 bool isFilter() const { return resourceType() == FilterResourceType; } isClipper()79 bool isClipper() const { return resourceType() == ClipperResourceType; } isMarker()80 bool isMarker() const { return resourceType() == MarkerResourceType; } isMasker()81 bool isMasker() const { return resourceType() == MaskerResourceType; } 82 83 virtual TextStream& externalRepresentation(TextStream&) const; 84 85 static void invalidateClients(HashSet<SVGStyledElement*>); 86 static void removeClient(SVGStyledElement*); 87 88 protected: 89 SVGResource(); 90 91 private: 92 HashSet<SVGStyledElement*> m_clients; 93 }; 94 95 SVGResource* getResourceById(Document*, const AtomicString&, const RenderObject*); 96 97 TextStream& operator<<(TextStream&, const SVGResource&); 98 99 } // namespace WebCore 100 101 #endif 102 #endif // SVGResource_h 103