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26 #ifndef RenderScrollbarTheme_h
27 #define RenderScrollbarTheme_h
29 #include "ScrollbarThemeComposite.h"
33 class PlatformMouseEvent;
37 class RenderScrollbarTheme : public ScrollbarThemeComposite {
39 virtual ~RenderScrollbarTheme() {};
41 virtual int scrollbarThickness(ScrollbarControlSize controlSize) { return ScrollbarTheme::nativeTheme()->scrollbarThickness(controlSize); }
43 virtual ScrollbarButtonsPlacement buttonsPlacement() const { return ScrollbarTheme::nativeTheme()->buttonsPlacement(); }
45 virtual bool supportsControlTints() const { return true; }
47 virtual void paintScrollCorner(ScrollView*, GraphicsContext* context, const IntRect& cornerRect);
49 virtual bool shouldCenterOnThumb(Scrollbar* scrollbar, const PlatformMouseEvent& event) { return ScrollbarTheme::nativeTheme()->shouldCenterOnThumb(scrollbar, event); }
51 virtual double initialAutoscrollTimerDelay() { return ScrollbarTheme::nativeTheme()->initialAutoscrollTimerDelay(); }
52 virtual double autoscrollTimerDelay() { return ScrollbarTheme::nativeTheme()->autoscrollTimerDelay(); }
54 virtual void registerScrollbar(Scrollbar* scrollbar) { return ScrollbarTheme::nativeTheme()->registerScrollbar(scrollbar); }
55 virtual void unregisterScrollbar(Scrollbar* scrollbar) { return ScrollbarTheme::nativeTheme()->unregisterScrollbar(scrollbar); }
57 virtual int minimumThumbLength(Scrollbar*);
59 void buttonSizesAlongTrackAxis(Scrollbar* scrollbar, int& beforeSize, int& afterSize);
61 static RenderScrollbarTheme* renderScrollbarTheme();
64 virtual bool hasButtons(Scrollbar*);
65 virtual bool hasThumb(Scrollbar*);
67 virtual IntRect backButtonRect(Scrollbar*, ScrollbarPart, bool painting = false);
68 virtual IntRect forwardButtonRect(Scrollbar*, ScrollbarPart, bool painting = false);
69 virtual IntRect trackRect(Scrollbar*, bool painting = false);
71 virtual void paintScrollbarBackground(GraphicsContext*, Scrollbar*);
72 virtual void paintTrackBackground(GraphicsContext*, Scrollbar*, const IntRect&);
73 virtual void paintTrackPiece(GraphicsContext*, Scrollbar*, const IntRect&, ScrollbarPart);
74 virtual void paintButton(GraphicsContext*, Scrollbar*, const IntRect&, ScrollbarPart);
75 virtual void paintThumb(GraphicsContext*, Scrollbar*, const IntRect&);
77 virtual IntRect constrainTrackRectToTrackPieces(Scrollbar*, const IntRect&);
80 } // namespace WebCore
82 #endif // RenderScrollbarTheme_h