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1 /*
2  * Copyright (C) 2006, 2007, 2008 Apple Computer, Inc.  All rights reserved.
3  * Copyright (C) 2007 Alp Toker <alp@atoker.com>
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 APPLE COMPUTER, INC. ``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 APPLE COMPUTER, INC. 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 CanvasGradient_h
28 #define CanvasGradient_h
29 
30 #include "Gradient.h"
31 #include <wtf/PassRefPtr.h>
32 #include <wtf/RefCounted.h>
33 
34 namespace WebCore {
35 
36     class String;
37 
38     typedef int ExceptionCode;
39 
40     class CanvasGradient : public RefCounted<CanvasGradient> {
41     public:
create(const FloatPoint & p0,const FloatPoint & p1)42         static PassRefPtr<CanvasGradient> create(const FloatPoint& p0, const FloatPoint& p1)
43         {
44             return adoptRef(new CanvasGradient(p0, p1));
45         }
create(const FloatPoint & p0,float r0,const FloatPoint & p1,float r1)46         static PassRefPtr<CanvasGradient> create(const FloatPoint& p0, float r0, const FloatPoint& p1, float r1)
47         {
48             return adoptRef(new CanvasGradient(p0, r0, p1, r1));
49         }
50 
gradient()51         Gradient* gradient() const { return m_gradient.get(); }
52 
53         void addColorStop(float value, const String& color, ExceptionCode&);
54 
getColor(float value,float * r,float * g,float * b,float * a)55         void getColor(float value, float* r, float* g, float* b, float* a) const { m_gradient->getColor(value, r, g, b, a); }
56 
57 #if ENABLE(DASHBOARD_SUPPORT)
setDashboardCompatibilityMode()58         void setDashboardCompatibilityMode() { m_dashbardCompatibilityMode = true; }
59 #endif
60 
61     private:
62         CanvasGradient(const FloatPoint& p0, const FloatPoint& p1);
63         CanvasGradient(const FloatPoint& p0, float r0, const FloatPoint& p1, float r1);
64 
65         RefPtr<Gradient> m_gradient;
66         bool m_dashbardCompatibilityMode;
67     };
68 
69 } //namespace
70 
71 #endif
72