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      1 /*
      2  * Copyright (C) 2010 University of Szeged
      3  * Copyright (C) 2010 Zoltan Herczeg
      4  *
      5  * Redistribution and use in source and binary forms, with or without
      6  * modification, are permitted provided that the following conditions
      7  * are met:
      8  * 1. Redistributions of source code must retain the above copyright
      9  *    notice, this list of conditions and the following disclaimer.
     10  * 2. Redistributions in binary form must reproduce the above copyright
     11  *    notice, this list of conditions and the following disclaimer in the
     12  *    documentation and/or other materials provided with the distribution.
     13  *
     14  * THIS SOFTWARE IS PROVIDED BY UNIVERSITY OF SZEGED ``AS IS'' AND ANY
     15  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     17  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL UNIVERSITY OF SZEGED OR
     18  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
     19  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
     20  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
     21  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
     22  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     23  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     24  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     25  */
     26 
     27 #ifndef RenderSVGResourceFilterPrimitive_h
     28 #define RenderSVGResourceFilterPrimitive_h
     29 
     30 #if ENABLE(SVG) && ENABLE(FILTERS)
     31 
     32 #include "RenderSVGHiddenContainer.h"
     33 #include "RenderSVGResourceFilter.h"
     34 
     35 namespace WebCore {
     36 
     37 class FilterEffect;
     38 
     39 class RenderSVGResourceFilterPrimitive : public RenderSVGHiddenContainer {
     40 public:
     41     explicit RenderSVGResourceFilterPrimitive(SVGStyledElement* filterPrimitiveElement)
     42         : RenderSVGHiddenContainer(filterPrimitiveElement)
     43     {
     44     }
     45 
     46     virtual void styleDidChange(StyleDifference, const RenderStyle*);
     47 
     48     virtual const char* renderName() const { return "RenderSVGResourceFilterPrimitive"; }
     49     virtual bool isSVGResourceFilterPrimitive() const { return true; }
     50 
     51     // They depend on the RenderObject argument of RenderSVGResourceFilter::applyResource.
     52     static FloatRect determineFilterPrimitiveSubregion(FilterEffect*);
     53 
     54     inline void primitiveAttributeChanged(const QualifiedName& attribute)
     55     {
     56         RenderObject* filter = parent();
     57         if (!filter || !filter->isSVGResourceFilter())
     58             return;
     59         static_cast<RenderSVGResourceFilter*>(filter)->primitiveAttributeChanged(this, attribute);
     60     }
     61 };
     62 
     63 } // namespace WebCore
     64 
     65 #endif // ENABLE(SVG) && ENABLE(FILTERS)
     66 
     67 #endif // RenderSVGResourceFilterPrimitive_h
     68