1 /*

     2  * Copyright (C) 2004, 2006, 2008 Apple Inc. All rights reserved.

     3  *

     4  * Redistribution and use in source and binary forms, with or without

     5  * modification, are permitted provided that the following conditions

     6  * are met:

     7  * 1. Redistributions of source code must retain the above copyright

     8  *    notice, this list of conditions and the following disclaimer.

     9  * 2. Redistributions in binary form must reproduce the above copyright

    10  *    notice, this list of conditions and the following disclaimer in the

    11  *    documentation and/or other materials provided with the distribution.

    12  *

    13  * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY

    14  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE

    15  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR

    16  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR

    17  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,

    18  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,

    19  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR

    20  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY

    21  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT

    22  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE

    23  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

    24  */

    25 

    26 #ifndef ScrollbarGtk_h

    27 #define ScrollbarGtk_h

    28 

    29 #include "Scrollbar.h"

    30 #include <wtf/PassRefPtr.h>

    31 

    32 typedef struct _GtkAdjustment GtkAdjustment;

    33 

    34 namespace WebCore {

    35 

    36 class ScrollbarGtk : public Scrollbar {

    37 public:

    38     friend class Scrollbar;

    39     friend class ScrollView;

    40     ~ScrollbarGtk();

    41 

    42     virtual void setFrameRect(const IntRect&);

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

    44     

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

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

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

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

    49 

    50     virtual void setEnabled(bool);

    51 

    52     virtual void frameRectsChanged();

    53 

    54 protected:

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

    56 

    57     ScrollbarGtk(ScrollbarClient*, ScrollbarOrientation, ScrollbarControlSize);

    58     ScrollbarGtk(ScrollbarClient*, ScrollbarOrientation, GtkAdjustment*);

    59 

    60     virtual void updateThumbPosition();

    61     virtual void updateThumbProportion();

    62 

    63     void detachAdjustment();

    64     void attachAdjustment(GtkAdjustment*);

    65 private:

    66     static void gtkValueChanged(GtkAdjustment*, ScrollbarGtk*);

    67     IntPoint getLocationInParentWindow(const IntRect&);

    68     GtkAdjustment* m_adjustment;

    69 };

    70 

    71 }

    72 

    73 #endif // ScrollbarGtk_h