///
bool idxUpDown(Cursor & cur, bool up) const;
///
- void metrics(MetricsInfo & mi, Dimension & dim) const;
+ bool idxForward(Cursor & cur) const;
///
- void draw(PainterInfo & pi, int x, int y) const;
+ bool idxBackward(Cursor & cur) const;
///
- idx_type firstIdx() const { return 1; }
+ bool idxFirst(Cursor &) const;
+ ///
+ bool idxLast(Cursor &) const;
+
///
- idx_type lastIdx() const { return 1; }
+ void metrics(MetricsInfo & mi, Dimension & dim) const;
+ ///
+ void draw(PainterInfo & pi, int x, int y) const;
///
void write(WriteStream & os) const;