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