+int Row::left_x() const
+{
+ double x = left_margin;
+ const_iterator const end = elements_.end();
+ const_iterator cit = elements_.begin();
+ while (cit != end && cit->isVirtual()) {
+ x += cit->full_width();
+ ++cit;
+ }
+ return int(x + 0.5);
+}
+
+
+int Row::right_x() const
+{
+ double x = dim_.wid;
+ const_iterator const begin = elements_.begin();
+ const_iterator cit = elements_.end();
+ while (cit != begin) {
+ --cit;
+ if (cit->isVirtual())
+ x -= cit->full_width();
+ else
+ break;
+ }
+ return int(x + 0.5);
+}
+
+