QScroller merge, part 1

This merge consists of the actual kinetic scroller implementation, its
autotests plus a few examples.  QAbstractScrollArea and QAbstractItemView
have been extended to support the new scroll events.

The complete history is in
http://scm.dev.nokia.troll.no/projects/qt/repos/rgriebls-qt-flickgesture/logs/4.7-flickgesture

(part 2 is the QML Flickable replacement / part 3 is QWebView support)

Task-number: QTBUG-9054
Reviewed-by: Ralf Engels

1 files changed, 46 insertions, 0 deletions

diff --git a/src/gui/kernel/qevent.h b/src/gui/kernel/qevent.h
index 9c70c02..6c0076d 100644
--- a/src/gui/kernel/qevent.h
+++ b/src/gui/kernel/qevent.h
@@ -880,6 +880,52 @@ private:
 };
 #endif // QT_NO_GESTURES
 
+class QScrollPrepareEventPrivate;
+class Q_GUI_EXPORT QScrollPrepareEvent : public QEvent
+{
+public:
+    QScrollPrepareEvent(const QPointF &startPos);
+    ~QScrollPrepareEvent();
+
+    QPointF startPos() const;
+
+    QSizeF viewportSize() const;
+    QRectF contentPosRange() const;
+    QPointF contentPos() const;
+
+    void setViewportSize(const QSizeF &size);
+    void setContentPosRange(const QRectF &rect);
+    void setContentPos(const QPointF &pos);
+
+private:
+    QScrollPrepareEventPrivate *d_func();
+    const QScrollPrepareEventPrivate *d_func() const;
+};
+
+
+class QScrollEventPrivate;
+class Q_GUI_EXPORT QScrollEvent : public QEvent
+{
+public:
+    enum ScrollState
+    {
+        ScrollStarted,
+        ScrollUpdated,
+        ScrollFinished
+    };
+
+    QScrollEvent(const QPointF &contentPos, const QPointF &overshoot, ScrollState scrollState);
+    ~QScrollEvent();
+
+    QPointF contentPos() const;
+    QPointF overshootDistance() const;
+    ScrollState scrollState() const;
+
+private:
+    QScrollEventPrivate *d_func();
+    const QScrollEventPrivate *d_func() const;
+};
+
 QT_END_NAMESPACE
 
 QT_END_HEADER