1 /*

     2     Copyright (C) 2004, 2005, 2006 Nikolas Zimmermann <wildfox@kde.org>

     3                   2004, 2005 Rob Buis <buis@kde.org>

     4                   2005 Eric Seidel <eric.seidel@kdemail.net>

     5 

     6     This file is part of the KDE project

     7 

     8     This library is free software; you can redistribute it and/or

     9     modify it under the terms of the GNU Library General Public

    10     License as published by the Free Software Foundation; either

    11     version 2 of the License, or (at your option) any later version.

    12 

    13     This library is distributed in the hope that it will be useful,

    14     but WITHOUT ANY WARRANTY; without even the implied warranty of

    15     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

    16     Library General Public License for more details.

    17 

    18     You should have received a copy of the GNU Library General Public License

    19     aint with this library; see the file COPYING.LIB.  If not, write to

    20     the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,

    21     Boston, MA 02110-1301, USA.

    22 */

    23 

    24 #ifndef SVGResourceFilter_h

    25 #define SVGResourceFilter_h

    26 

    27 #if ENABLE(SVG) && ENABLE(SVG_EXPERIMENTAL_FEATURES)

    28 #include "SVGResource.h"

    29 #include "SVGFilterEffect.h"

    30 

    31 #include "FloatRect.h"

    32 

    33 #if PLATFORM(CI)

    34 #include <ApplicationServices/ApplicationServices.h>

    35 

    36 #ifdef __OBJC__

    37 @class CIImage;

    38 @class CIFilter;

    39 @class CIContext;

    40 @class NSArray;

    41 @class NSMutableDictionary;

    42 #else

    43 class CIImage;

    44 class CIFilter;

    45 class CIContext;

    46 class NSArray;

    47 class NSMutableDictionary;

    48 #endif

    49 #endif

    50 

    51 namespace WebCore {

    52 

    53 class GraphicsContext;

    54 class SVGFilterEffect;

    55 

    56 class SVGResourceFilter : public SVGResource {

    57 public:

    58     // To be implemented in platform specific code.

    59     SVGResourceFilter();

    60     virtual ~SVGResourceFilter();

    61 

    62     static SVGFilterEffect* createFilterEffect(const SVGFilterEffectType&);

    63 

    64     virtual bool isFilter() const { return true; }

    65 

    66     bool filterBoundingBoxMode() const { return m_filterBBoxMode; }

    67     void setFilterBoundingBoxMode(bool bboxMode) { m_filterBBoxMode = bboxMode; }

    68 

    69     bool effectBoundingBoxMode() const { return m_effectBBoxMode; }

    70     void setEffectBoundingBoxMode(bool bboxMode) { m_effectBBoxMode = bboxMode; }

    71 

    72     FloatRect filterRect() const { return m_filterRect; }

    73     void setFilterRect(const FloatRect& rect) { m_filterRect = rect; }

    74 

    75     FloatRect filterBBoxForItemBBox(FloatRect itemBBox) const;

    76 

    77     void clearEffects();

    78     void addFilterEffect(SVGFilterEffect*);

    79 

    80     virtual TextStream& externalRepresentation(TextStream&) const;

    81 

    82     // To be implemented in platform specific code.

    83     void prepareFilter(GraphicsContext*&, const FloatRect& bbox);

    84     void applyFilter(GraphicsContext*&, const FloatRect& bbox);

    85 

    86 #if PLATFORM(CI)

    87     CIImage* imageForName(const String&) const;

    88     void setImageForName(CIImage*, const String&);

    89 

    90     void setOutputImage(const SVGFilterEffect*, CIImage*);

    91     CIImage* inputImage(const SVGFilterEffect*);

    92 #endif

    93 

    94 private:

    95 #if PLATFORM(CI)

    96     NSArray* getCIFilterStack(CIImage* inputImage);

    97 

    98     CIContext* m_filterCIContext;

    99     CGLayerRef m_filterCGLayer;

   100     GraphicsContext* m_savedContext;

   101     NSMutableDictionary* m_imagesByName;

   102 #endif

   103 

   104     FloatRect m_filterRect;

   105     Vector<SVGFilterEffect*> m_effects;

   106 

   107     bool m_filterBBoxMode;

   108     bool m_effectBBoxMode;

   109 };

   110 

   111 SVGResourceFilter* getFilterById(Document*, const AtomicString&);

   112 

   113 } // namespace WebCore

   114 

   115 #endif // ENABLE(SVG)

   116 

   117 #endif // SVGResourceFilter_h