-void Ruler::mouseMoveEvent(QMouseEvent *e)
-{
- mouse_point_ = e->pos();
-
- if (!(e->buttons() & Qt::LeftButton))
- return;
-
- if ((e->pos() - mouse_down_point_).manhattanLength() <
- QApplication::startDragDistance())
- return;
-
- // Do the drag
- dragging_ = true;
-
- const QPoint delta = e->pos() - mouse_down_point_;
- const vector< shared_ptr<TimeItem> > items(view_.time_items());
- for (auto &i : items)
- if (i->dragging())
- i->drag_by(delta);
-}
-