/*

 * 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 ScrollbarThemeMac_h

#define ScrollbarThemeMac_h

#include "ScrollbarThemeComposite.h"

namespace WebCore {

class ScrollbarThemeMac : public ScrollbarThemeComposite {

public:

    ScrollbarThemeMac();

    virtual ~ScrollbarThemeMac();

    virtual bool paint(Scrollbar*, GraphicsContext* context, const IntRect& damageRect);

    virtual int scrollbarThickness(ScrollbarControlSize = RegularScrollbar);

    virtual bool supportsControlTints() const { return true; }

    virtual double initialAutoscrollTimerDelay();

    virtual double autoscrollTimerDelay();

    virtual ScrollbarButtonsPlacement buttonsPlacement() const;

    virtual void registerScrollbar(Scrollbar*);

    virtual void unregisterScrollbar(Scrollbar*);

protected:

    virtual bool hasButtons(Scrollbar*);

    virtual bool hasThumb(Scrollbar*);

    virtual IntRect backButtonRect(Scrollbar*, ScrollbarPart, bool painting = false);

    virtual IntRect forwardButtonRect(Scrollbar*, ScrollbarPart, bool painting = false);

    virtual IntRect trackRect(Scrollbar*, bool painting = false);

    virtual int maxOverlapBetweenPages() { return 40; }

    virtual int minimumThumbLength(Scrollbar*);

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

public:

    void preferencesChanged();

};

}

#endif