def __init__(self, filename, quality, parent=None, name=None):
QGLWidget.__init__(self, parent, name)
# load molecule and read from xyz file
self.mol = Molecule()
self.mol.readxyz(filename)
self.mol.genbonds()
# adjust quality to sanity
# set display quality
if self.mol.natoms > 10000:
self.quality = min(2, quality)
else:
self.quality = quality
print(quality)
self.atom_size = 0.4
self.bond_size = 0.1
self.offset = -self.mol.box[0] - self.mol.box[1]
# set initial coordinates
self.x, self.y = self.lastx, self.lasty = [0, 0]
