File indexing completed on 2024-05-12 11:51:55

 /*
  * Copyright (C) 2006, 2008 Nikolas Zimmermann <zimmermann@kde.org>
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
  *    documentation and/or other materials provided with the distribution.
  *
  * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #ifndef SVGResource_h
 #define SVGResource_h
 
 #if ENABLE(SVG)
 #include "PlatformString.h"
 //#include "StringHash.h"
 
 #include <wtf/HashMap.h>
 #include <wtf/HashSet.h>
 #include <wtf/RefCounted.h>
 
 #include "Document.h"
 
 namespace WebCore
 {
 
 //class AtomicString;
 //class Document;
 class SVGStyledElement;
 //class TextStream;
 
 enum SVGResourceType {
     // Painting mode
     ClipperResourceType = 0,
     MarkerResourceType,
     ImageResourceType,
     FilterResourceType,
     MaskerResourceType,
     PaintServerResourceType,
 
     // For resource tracking we need to know how many types of resource there are
     _ResourceTypeCount
 };
 
 // The SVGResource file represent various graphics resources:
 // - Filter resource
 // - Clipper resource
 // - Masker resource
 // - Marker resource
 // - Pattern resource
 // - Linear/Radial gradient resource
 //
 // SVG creates/uses these resources.
 
 class SVGResource : public RefCounted<SVGResource>
 {
 public:
     virtual ~SVGResource();
 
     virtual void invalidate();
 
     void addClient(SVGStyledElement *);
     virtual SVGResourceType resourceType() const = 0;
 
     bool isPaintServer() const
     {
         return resourceType() == PaintServerResourceType;
     }
     bool isFilter() const
     {
         return resourceType() == FilterResourceType;
     }
     bool isClipper() const
     {
         return resourceType() == ClipperResourceType;
     }
     bool isMarker() const
     {
         return resourceType() == MarkerResourceType;
     }
     bool isMasker() const
     {
         return resourceType() == MaskerResourceType;
     }
 
     /*virtual TextStream& externalRepresentation(TextStream&) const;*/
 
     static void invalidateClients(HashSet<SVGStyledElement *>);
     static void removeClient(SVGStyledElement *);
 
 protected:
     SVGResource();
 
 private:
     HashSet<SVGStyledElement *> m_clients;
 };
 
 SVGResource *getResourceById(Document *, const AtomicString &);
 
 /*TextStream& operator<<(TextStream&, const SVGResource&);*/
 
 } // namespace WebCore
 
 #endif
 #endif // SVGResource_h