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29 #include "ScrollBarMode.h"
31 #include <wtf/Platform.h>
39 class PlatformWheelEvent;
40 class PlatformScrollBar;
42 class ScrollView : public Widget {
44 int visibleWidth() const;
45 int visibleHeight() const;
46 FloatRect visibleContentRect() const;
47 int contentsWidth() const;
48 int contentsHeight() const;
49 int contentsX() const;
50 int contentsY() const;
51 IntSize scrollOffset() const;
52 void scrollBy(int dx, int dy);
53 virtual void scrollPointRecursively(int dx, int dy);
55 virtual void setContentsPos(int x, int y);
57 virtual void setVScrollBarMode(ScrollBarMode);
58 virtual void setHScrollBarMode(ScrollBarMode);
60 // Set the mode for both scroll bars at once.
61 virtual void setScrollBarsMode(ScrollBarMode);
63 // This gives us a means of blocking painting on our scrollbars until the first layout has occurred.
64 void suppressScrollBars(bool suppressed, bool repaintOnUnsuppress = false);
66 ScrollBarMode vScrollBarMode() const;
67 ScrollBarMode hScrollBarMode() const;
69 void addChild(Widget*, int x = 0, int y = 0);
70 void removeChild(Widget*);
72 virtual void resizeContents(int w, int h);
73 void updateContents(const IntRect&, bool now = false);
75 // Event coordinates are assumed to be in the coordinate space of a window that contains
76 // the entire widget hierarchy. It is up to the platform to decide what the precise definition
77 // of containing window is. (For example on Mac it is the containing NSWindow.)
78 IntPoint windowToContents(const IntPoint&) const;
79 IntPoint contentsToWindow(const IntPoint&) const;
81 void setStaticBackground(bool);
83 bool inWindow() const;
85 // For platforms that need to hit test scrollbars from within the engine's event handlers (like Win32).
86 PlatformScrollBar* scrollbarUnderMouse(const PlatformMouseEvent& mouseEvent);
88 // This method exists for scrollviews that need to handle wheel events manually.
89 // On Mac the underlying NSScrollView just does the scrolling, but on other platforms
90 // (like Windows), we need this method in order to do the scroll ourselves.
91 void wheelEvent(PlatformWheelEvent&);
94 NSView* getDocumentView() const;
101 virtual void paint(GraphicsContext*, const IntRect&);
102 virtual void themeChanged();
104 virtual IntPoint convertChildToSelf(const Widget*, const IntPoint&) const;
105 virtual IntPoint convertSelfToChild(const Widget*, const IntPoint&) const;
107 virtual void scrolled() const;
110 void updateScrollBars(const IntSize& desiredOffset);
111 IntSize maximumScroll() const;
112 class ScrollViewPrivate;
113 ScrollViewPrivate* m_data;
117 void updateView(const IntRect&, bool now = false);
118 virtual void setDrawable(GdkDrawable* drawable);
119 virtual void setFrameGeometry(const IntRect&);
123 void updateScrollBars();
124 IntSize maximumScroll() const;
125 int updateScrollInfo(short type, int current, int max, int pageSize);
126 class ScrollViewPrivate;
127 ScrollViewPrivate* m_data;
134 virtual void setParentWidget(QWidget*);
141 } // namespace WebCore
143 #endif // ScrollView_H