/*

 * Copyright (C) 2004, 2006, 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 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 ScrollbarGtk_h

#define ScrollbarGtk_h

#include "Scrollbar.h"

#include <wtf/PassRefPtr.h>

typedef struct _GtkAdjustment GtkAdjustment;

namespace WebCore {

class ScrollbarGtk : public Scrollbar {

public:

    friend class Scrollbar;

    friend class ScrollView;

    ~ScrollbarGtk();

    virtual void setFrameRect(const IntRect&);

    virtual void paint(GraphicsContext*, const IntRect&);

    virtual bool handleMouseMoveEvent(const PlatformMouseEvent&) { return false; }

    virtual bool handleMouseOutEvent(const PlatformMouseEvent&) { return false; }

    virtual bool handleMousePressEvent(const PlatformMouseEvent&) { return false; }

    virtual bool handleMouseReleaseEvent(const PlatformMouseEvent&) { return false; }

    virtual void setEnabled(bool);

    virtual void frameRectsChanged();

protected:

    static PassRefPtr<ScrollbarGtk> createScrollbar(ScrollbarClient* client, ScrollbarOrientation orientation, GtkAdjustment*);

    ScrollbarGtk(ScrollbarClient*, ScrollbarOrientation, ScrollbarControlSize);

    ScrollbarGtk(ScrollbarClient*, ScrollbarOrientation, GtkAdjustment*);

    virtual void updateThumbPosition();

    virtual void updateThumbProportion();

    void detachAdjustment();

    void attachAdjustment(GtkAdjustment*);

private:

    static void gtkValueChanged(GtkAdjustment*, ScrollbarGtk*);

    IntPoint getLocationInParentWindow(const IntRect&);

    GtkAdjustment* m_adjustment;

};

}

#endif // ScrollbarGtk_h