/*
 * Copyright (C) 2008 Apple Inc. All Rights Reserved.
 *
 * 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 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 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 ScrollbarThemeQt_h
#define ScrollbarThemeQt_h

#include "ScrollbarTheme.h"

#include <QtCore/qglobal.h>

QT_BEGIN_NAMESPACE
class QStyle;
QT_END_NAMESPACE

namespace WebCore {

class ScrollbarThemeQt : public ScrollbarTheme {
public:
    virtual ~ScrollbarThemeQt();

    virtual bool paint(Scrollbar*, GraphicsContext*, const IntRect& damageRect);
    virtual void paintScrollCorner(ScrollView*, GraphicsContext*, const IntRect& cornerRect);

    virtual ScrollbarPart hitTest(Scrollbar*, const PlatformMouseEvent&);

    virtual bool shouldCenterOnThumb(Scrollbar*, const PlatformMouseEvent&);

    virtual void invalidatePart(Scrollbar*, ScrollbarPart);

    virtual int thumbPosition(Scrollbar*);
    virtual int thumbLength(Scrollbar*);
    virtual int trackPosition(Scrollbar*);
    virtual int trackLength(Scrollbar*);

    virtual int scrollbarThickness(ScrollbarControlSize = RegularScrollbar);

    QStyle* style() const;
};

}
#endif
