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/*
* 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 ScrollbarThemeGtk_h
#define ScrollbarThemeGtk_h
#include "ScrollbarThemeComposite.h"
namespace WebCore {
class Scrollbar;
class ScrollbarThemeGtk : public ScrollbarThemeComposite {
public:
ScrollbarThemeGtk();
virtual ~ScrollbarThemeGtk();
virtual bool hasButtons(ScrollbarThemeClient*) { return true; }
virtual bool hasThumb(ScrollbarThemeClient*);
virtual IntRect backButtonRect(ScrollbarThemeClient*, ScrollbarPart, bool);
virtual IntRect forwardButtonRect(ScrollbarThemeClient*, ScrollbarPart, bool);
virtual IntRect trackRect(ScrollbarThemeClient*, bool);
IntRect thumbRect(ScrollbarThemeClient*, const IntRect& unconstrainedTrackRect);
bool paint(ScrollbarThemeClient*, GraphicsContext*, const IntRect& damageRect);
void paintScrollbarBackground(GraphicsContext*, ScrollbarThemeClient*);
void paintTrackBackground(GraphicsContext*, ScrollbarThemeClient*, const IntRect&);
void paintThumb(GraphicsContext*, ScrollbarThemeClient*, const IntRect&);
virtual void paintButton(GraphicsContext*, ScrollbarThemeClient*, const IntRect&, ScrollbarPart);
virtual bool shouldCenterOnThumb(ScrollbarThemeClient*, const PlatformMouseEvent&);
virtual int scrollbarThickness(ScrollbarControlSize);
virtual IntSize buttonSize(ScrollbarThemeClient*);
virtual int minimumThumbLength(ScrollbarThemeClient*);
// TODO: These are the default GTK+ values. At some point we should pull these from the theme itself.
virtual double initialAutoscrollTimerDelay() { return 0.20; }
virtual double autoscrollTimerDelay() { return 0.02; }
void updateThemeProperties();
void updateScrollbarsFrameThickness();
void registerScrollbar(ScrollbarThemeClient*);
void unregisterScrollbar(ScrollbarThemeClient*);
protected:
#ifndef GTK_API_VERSION_2
GtkStyleContext* m_context;
#endif
int m_thumbFatness;
int m_troughBorderWidth;
int m_stepperSize;
int m_stepperSpacing;
int m_minThumbLength;
gboolean m_troughUnderSteppers;
gboolean m_hasForwardButtonStartPart;
gboolean m_hasForwardButtonEndPart;
gboolean m_hasBackButtonStartPart;
gboolean m_hasBackButtonEndPart;
};
}
#endif
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