xref: /external/chromium_org/third_party/WebKit/Source/core/html/canvas/CanvasGradient.h

/*
 * Copyright (C) 2006, 2007, 2008 Apple Computer, Inc.  All rights reserved.
 * Copyright (C) 2007 Alp Toker <alp@atoker.com>
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#ifndef CanvasGradient_h
#define CanvasGradient_h

#include "bindings/v8/ScriptWrappable.h"
#include "core/platform/graphics/Gradient.h"
#include "wtf/Forward.h"
#include "wtf/PassRefPtr.h"
#include "wtf/RefCounted.h"

namespace WebCore {

class ExceptionState;

class CanvasGradient : public RefCounted<CanvasGradient>, public ScriptWrappable {
public:
    static PassRefPtr<CanvasGradient> create(const FloatPoint& p0, const FloatPoint& p1)
    {
        return adoptRef(new CanvasGradient(p0, p1));
    }
    static PassRefPtr<CanvasGradient> create(const FloatPoint& p0, float r0, const FloatPoint& p1, float r1)
    {
        return adoptRef(new CanvasGradient(p0, r0, p1, r1));
    }

    Gradient* gradient() const { return m_gradient.get(); }

    void addColorStop(float value, const String& color, ExceptionState&);

private:
    CanvasGradient(const FloatPoint& p0, const FloatPoint& p1);
    CanvasGradient(const FloatPoint& p0, float r0, const FloatPoint& p1, float r1);

    RefPtr<Gradient> m_gradient;
};

} //namespace

#endif