File indexing completed on 2024-05-12 15:39:16

0001 /*
0002  * Copyright (C) 2006 Nikolas Zimmermann <zimmermann@kde.org>
0003  *
0004  * Redistribution and use in source and binary forms, with or without
0005  * modification, are permitted provided that the following conditions
0006  * are met:
0007  * 1. Redistributions of source code must retain the above copyright
0008  *    notice, this list of conditions and the following disclaimer.
0009  * 2. Redistributions in binary form must reproduce the above copyright
0010  *    notice, this list of conditions and the following disclaimer in the
0011  *    documentation and/or other materials provided with the distribution.
0012  *
0013  * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
0014  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
0015  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
0016  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
0017  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
0018  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
0019  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
0020  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
0021  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
0022  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
0023  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
0024  */
0025 
0026 #ifndef SVGResourceMasker_h
0027 #define SVGResourceMasker_h
0028 
0029 #if ENABLE(SVG)
0030 
0031 #include "GraphicsContext.h"
0032 #include "SVGResource.h"
0033 
0034 #include <memory>
0035 
0036 #include <wtf/OwnPtr.h>
0037 #include <wtf/PassRefPtr.h>
0038 
0039 namespace WebCore
0040 {
0041 
0042 class FloatRect;
0043 class ImageBuffer;
0044 class SVGMaskElement;
0045 
0046 class SVGResourceMasker : public SVGResource
0047 {
0048 public:
0049     static PassRefPtr<SVGResourceMasker> create(const SVGMaskElement *ownerElement)
0050     {
0051         return adoptRef(new SVGResourceMasker(ownerElement));
0052     }
0053     virtual ~SVGResourceMasker();
0054 
0055     virtual void invalidate();
0056 
0057     virtual SVGResourceType resourceType() const
0058     {
0059         return MaskerResourceType;
0060     }
0061     /*virtual TextStream& externalRepresentation(TextStream&) const;*/
0062 
0063     // To be implemented by the specific rendering devices
0064     void applyMask(/*GraphicsContext**/QPainter *painter, const FloatRect &boundingBox);
0065 
0066 private:
0067     SVGResourceMasker(const SVGMaskElement *);
0068 
0069     const SVGMaskElement *m_ownerElement;
0070 
0071     OwnPtr<ImageBuffer> m_mask;
0072     FloatRect m_maskRect;
0073 };
0074 
0075 SVGResourceMasker *getMaskerById(Document *, const AtomicString &);
0076 
0077 } // namespace WebCore
0078 
0079 #endif
0080 
0081 #endif // SVGResourceMasker_h