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      1 /*
      2  * Copyright (C) 2006, 2007, 2008 Apple Computer, Inc.  All rights reserved.
      3  * Copyright (C) 2008 Eric Seidel <eric (at) webkit.org>
      4  * Copyright (C) 2007-2008 Torch Mobile, Inc.
      5  *
      6  * Redistribution and use in source and binary forms, with or without
      7  * modification, are permitted provided that the following conditions
      8  * are met:
      9  * 1. Redistributions of source code must retain the above copyright
     10  *    notice, this list of conditions and the following disclaimer.
     11  * 2. Redistributions in binary form must reproduce the above copyright
     12  *    notice, this list of conditions and the following disclaimer in the
     13  *    documentation and/or other materials provided with the distribution.
     14  *
     15  * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
     16  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     17  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     18  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
     19  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
     20  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
     21  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
     22  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
     23  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     24  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     25  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     26  */
     27 
     28 #ifndef Pattern_h
     29 #define Pattern_h
     30 
     31 #include "AffineTransform.h"
     32 #include "Image.h"
     33 
     34 #include <wtf/PassRefPtr.h>
     35 #include <wtf/RefCounted.h>
     36 #include <wtf/RefPtr.h>
     37 
     38 #if USE(CG)
     39 typedef struct CGPattern* CGPatternRef;
     40 typedef CGPatternRef PlatformPatternPtr;
     41 #elif USE(CAIRO)
     42 #include <cairo.h>
     43 typedef cairo_pattern_t* PlatformPatternPtr;
     44 #elif USE(SKIA)
     45 class SkShader;
     46 typedef SkShader* PlatformPatternPtr;
     47 #elif PLATFORM(QT)
     48 #include <QBrush>
     49 typedef QBrush PlatformPatternPtr;
     50 #elif PLATFORM(WX)
     51 #if USE(WXGC)
     52 class wxGraphicsBrush;
     53 typedef wxGraphicsBrush* PlatformPatternPtr;
     54 #else
     55 class wxBrush;
     56 typedef wxBrush* PlatformPatternPtr;
     57 #endif // USE(WXGC)
     58 #elif PLATFORM(HAIKU)
     59 #include <interface/GraphicsDefs.h>
     60 typedef pattern* PlatformPatternPtr;
     61 #elif OS(WINCE)
     62 typedef void* PlatformPatternPtr;
     63 #endif
     64 
     65 namespace WebCore {
     66 
     67 class AffineTransform;
     68 
     69 class Pattern : public RefCounted<Pattern> {
     70 public:
     71     static PassRefPtr<Pattern> create(PassRefPtr<Image> tileImage, bool repeatX, bool repeatY)
     72     {
     73         return adoptRef(new Pattern(tileImage, repeatX, repeatY));
     74     }
     75     virtual ~Pattern();
     76 
     77     Image* tileImage() const { return m_tileImage.get(); }
     78 
     79     void platformDestroy();
     80 
     81     // Pattern space is an abstract space that maps to the default user space by the transformation 'userSpaceTransformation'
     82 #if USE(SKIA)
     83     PlatformPatternPtr platformPattern(const AffineTransform& userSpaceTransformation);
     84 #else
     85     PlatformPatternPtr createPlatformPattern(const AffineTransform& userSpaceTransformation) const;
     86 #endif
     87     void setPatternSpaceTransform(const AffineTransform& patternSpaceTransformation);
     88     void setPlatformPatternSpaceTransform();
     89 
     90     bool repeatX() const { return m_repeatX; }
     91     bool repeatY() const { return m_repeatY; }
     92 
     93 private:
     94     Pattern(PassRefPtr<Image>, bool repeatX, bool repeatY);
     95 
     96     RefPtr<Image> m_tileImage;
     97     bool m_repeatX;
     98     bool m_repeatY;
     99     AffineTransform m_patternSpaceTransformation;
    100     PlatformPatternPtr m_pattern;
    101 };
    102 
    103 } //namespace
    104 
    105 #endif
    106