1/*
2 * Copyright (C) 2006, 2007, 2008 Apple Computer, Inc.  All rights reserved.
3 * Copyright (C) 2008 Eric Seidel <eric@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)
39typedef struct CGPattern* CGPatternRef;
40typedef CGPatternRef PlatformPatternPtr;
41#elif USE(CAIRO)
42#include <cairo.h>
43typedef cairo_pattern_t* PlatformPatternPtr;
44#elif USE(SKIA)
45class SkShader;
46typedef SkShader* PlatformPatternPtr;
47#elif PLATFORM(QT)
48#include <QBrush>
49typedef QBrush PlatformPatternPtr;
50#elif PLATFORM(WX)
51#if USE(WXGC)
52class wxGraphicsBrush;
53typedef wxGraphicsBrush* PlatformPatternPtr;
54#else
55class wxBrush;
56typedef wxBrush* PlatformPatternPtr;
57#endif // USE(WXGC)
58#elif PLATFORM(HAIKU)
59#include <interface/GraphicsDefs.h>
60typedef pattern* PlatformPatternPtr;
61#elif OS(WINCE)
62typedef void* PlatformPatternPtr;
63#endif
64
65namespace WebCore {
66
67class AffineTransform;
68
69class Pattern : public RefCounted<Pattern> {
70public:
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
93private:
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