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30 #include "ScrollBarMode.h"
31 #include "ScrollBar.h"
33 #include <wtf/Platform.h>
41 class PlatformWheelEvent;
42 class PlatformScrollbar;
44 class ScrollView : public Widget {
46 int visibleWidth() const;
47 int visibleHeight() const;
48 FloatRect visibleContentRect() const;
49 int contentsWidth() const;
50 int contentsHeight() const;
51 int contentsX() const;
52 int contentsY() const;
53 IntSize scrollOffset() const;
54 void scrollBy(int dx, int dy);
55 virtual void scrollPointRecursively(int dx, int dy);
57 virtual void setContentsPos(int x, int y);
59 virtual void setVScrollbarMode(ScrollbarMode);
60 virtual void setHScrollbarMode(ScrollbarMode);
62 // Set the mode for both scrollbars at once.
63 virtual void setScrollbarsMode(ScrollbarMode);
65 // This gives us a means of blocking painting on our scrollbars until the first layout has occurred.
66 void suppressScrollbars(bool suppressed, bool repaintOnUnsuppress = false);
68 ScrollbarMode vScrollbarMode() const;
69 ScrollbarMode hScrollbarMode() const;
71 void addChild(Widget*, int x = 0, int y = 0);
72 void removeChild(Widget*);
74 virtual void resizeContents(int w, int h);
75 void updateContents(const IntRect&, bool now = false);
77 // Event coordinates are assumed to be in the coordinate space of a window that contains
78 // the entire widget hierarchy. It is up to the platform to decide what the precise definition
79 // of containing window is. (For example on Mac it is the containing NSWindow.)
80 IntPoint windowToContents(const IntPoint&) const;
81 IntPoint contentsToWindow(const IntPoint&) const;
83 void setStaticBackground(bool);
85 bool inWindow() const;
87 // For platforms that need to hit test scrollbars from within the engine's event handlers (like Win32).
88 PlatformScrollbar* scrollbarUnderMouse(const PlatformMouseEvent& mouseEvent);
90 // This method exists for scrollviews that need to handle wheel events manually.
91 // On Mac the underlying NSScrollView just does the scrolling, but on other platforms
92 // (like Windows), we need this method in order to do the scroll ourselves.
93 void wheelEvent(PlatformWheelEvent&);
95 void scroll(ScrollDirection, ScrollGranularity);
98 NSView* getDocumentView() const;
105 virtual void paint(GraphicsContext*, const IntRect&);
106 virtual void themeChanged();
108 virtual IntPoint convertChildToSelf(const Widget*, const IntPoint&) const;
109 virtual IntPoint convertSelfToChild(const Widget*, const IntPoint&) const;
111 virtual void scrolled() const;
112 virtual void setFrameGeometry(const IntRect&);
114 virtual IntRect windowResizerRect();
117 void updateScrollbars(const IntSize& desiredOffset);
118 IntSize maximumScroll() const;
119 class ScrollViewPrivate;
120 ScrollViewPrivate* m_data;
124 void updateView(const IntRect&, bool now = false);
125 virtual void setDrawable(GdkDrawable* drawable);
126 virtual void setFrameGeometry(const IntRect&);
130 void updateScrollbars();
131 IntSize maximumScroll() const;
132 int updateScrollInfo(short type, int current, int max, int pageSize);
133 class ScrollViewPrivate;
134 ScrollViewPrivate* m_data;
141 virtual void setParentWidget(QWidget*);
148 } // namespace WebCore
150 #endif // ScrollView_H