Method shift_window

src/laybasic/laybasic/layLayoutViewBase.cc:4106–4120

}

void
LayoutViewBase::shift_window (double f, double dx, double dy)
{
  db::DBox b = mp_canvas->viewport ().box ();

  db::DPoint s = mp_canvas->viewport ().global_trans ().inverted () * db::DPoint (dx, dy);
  db::DPoint c = b.center () + db::DVector (b.width () * s.x (), b.height () * s.y ());

  double w = b.width () * f;
  double h = b.height () * f;

  db::DVector d (w * 0.5, h * 0.5);

  zoom_box (db::DBox (c - d, c + d));
}

void
LayoutViewBase::goto_window (const db::DPoint &p, double s)