1 /*

     2  * Copyright (C) 2006 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 

    31 #include "PlatformString.h"

    32 #include "Shared.h"

    33 #include "StringHash.h"

    34 

    35 #include <wtf/HashMap.h>

    36 #include <wtf/HashSet.h>

    37 

    38 namespace WebCore {

    39 

    40     class AtomicString; 

    41     class Document;

    42     class RenderPath;

    43     class SVGDocumentExtensions;

    44     class SVGStyledElement;

    45     class TextStream;

    46 

    47     enum SVGResourceType {

    48         // Painting mode

    49         ClipperResourceType = 0,

    50         MarkerResourceType = 1,

    51         ImageResourceType = 2,

    52         FilterResourceType = 3,

    53         MaskerResourceType = 4

    54     };

    55 

    56     // The SVGResource file represent various graphics resources:

    57     // - Filter resource

    58     // - Clipper resource

    59     // - Masker resource

    60     // - Marker resource

    61     // - Pattern resource

    62     // - Linear/Radial gradient resource

    63     //

    64     // SVG creates/uses these resources.

    65 

    66     class SVGResource : public Shared<SVGResource> {

    67     public:

    68         SVGResource();

    69         virtual ~SVGResource();

    70       

    71         virtual void invalidate();

    72 

    73         void addClient(SVGStyledElement*);

    74 

    75         void repaintClients() const;

    76         static void repaintClients(HashSet<SVGStyledElement*>);

    77 

    78         virtual bool isPaintServer() const { return false; }

    79         virtual bool isFilter() const { return false; }

    80         virtual bool isClipper() const { return false; }

    81         virtual bool isMarker() const { return false; }

    82         virtual bool isMasker() const { return false; }

    83 

    84         virtual TextStream& externalRepresentation(TextStream&) const;

    85 

    86     private:

    87         HashSet<SVGStyledElement*> m_clients;

    88     };

    89 

    90     SVGResource* getResourceById(Document*, const AtomicString&);

    91 

    92     TextStream& operator<<(TextStream&, const SVGResource&);

    93 

    94 } // namespace WebCore

    95 

    96 #endif

    97 

    98 #endif // SVGResource_h