/// left margin
int leftMargin() const;
+ /// \return true if the BufferView is at the top of the document.
+ bool isTopScreen() const;
+
+ /// \return true if the BufferView is at the bottom of the document.
+ bool isBottomScreen() const;
+
/// perform pending metrics updates.
/** \c Update::FitCursor means first to do a FitCursor, and to
* force an update if screen position changes.