def addMolecule(self, mol, name=None):
if name is None:
name = mol.name
d = MoleculeDrawer(self._int,
mol,
name)
self.c += 1
if self.c >= self.cols:
self.c = 0
self.r += 1
self._int.grid_rowconfigure(self.r, weight=1)
d.grid(row=self.r, column=self.c, sticky="NEWS")
