/**

 * This file is part of the DOM implementation for KDE.

 *

 * Copyright (C) 2001 Peter Kelly (pmk@post.com)

 * Copyright (C) 2001 Tobias Anton (anton@stud.fbi.fh-darmstadt.de)

 * Copyright (C) 2006 Samuel Weinig (sam.weinig@gmail.com)

 * Copyright (C) 2003, 2005, 2006 Apple Computer, Inc.

 *

 * This library is free software; you can redistribute it and/or

 * modify it under the terms of the GNU Library General Public

 * License as published by the Free Software Foundation; either

 * version 2 of the License, or (at your option) any later version.

 *

 * This library is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

 * Library General Public License for more details.

 *

 * You should have received a copy of the GNU Library General Public License

 * along with this library; see the file COPYING.LIB.  If not, write to

 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,

 * Boston, MA 02110-1301, USA.

 */

#include "config.h"

#include "WheelEvent.h"

#include "EventNames.h"

#include <wtf/MathExtras.h>

namespace WebCore {

using namespace EventNames;

WheelEvent::WheelEvent()

    : m_wheelDeltaX(0)

    , m_wheelDeltaY(0)

{

}

WheelEvent::WheelEvent(float wheelDeltaX, float wheelDeltaY, AbstractView* view,

                       int screenX, int screenY, int pageX, int pageY,

                       bool ctrlKey, bool altKey, bool shiftKey, bool metaKey)

    : MouseRelatedEvent(mousewheelEvent,

                        true, true, view, 0, screenX, screenY, pageX, pageY, 

                        ctrlKey, altKey, shiftKey, metaKey)

    , m_wheelDeltaX(lroundf(wheelDeltaX) * 120)

    , m_wheelDeltaY(lroundf(wheelDeltaY) * 120) // Normalize to the Windows 120 multiple

{

}

void WheelEvent::initWheelEvent(int wheelDeltaX, int wheelDeltaY, AbstractView* view,

                                int screenX, int screenY, int pageX, int pageY,

                                bool ctrlKey, bool altKey, bool shiftKey, bool metaKey)

{

    if (dispatched())

        return;

    initUIEvent(mousewheelEvent, true, true, view, 0);

    m_screenX = screenX;

    m_screenY = screenY;

    m_ctrlKey = ctrlKey;

    m_altKey = altKey;

    m_shiftKey = shiftKey;

    m_metaKey = metaKey;

    m_wheelDeltaX = wheelDeltaX;

    m_wheelDeltaY = wheelDeltaY;

    initCoordinates(pageX, pageY);

}

bool WheelEvent::isWheelEvent() const

{

    return true;

}

} // namespace WebCore