def printdihedrals(root, amber_prmtop, messages):
""" Prints dihedrals containing atoms from a given mask """
# We need a mask, new radius, new epsilon, and for chamber topologies,
# a new radius-1-4 and epsilon-1-4. Don't add the latter ones until we
# know if we have a chamber prmtop or not.
widget_list = [('MaskEntry', 'Atoms to analyze for dihedrals')]
# We need 5 string variables, then get the description.
var_list = [StringVar()]
desc = 'Prints all dihedrals containing at least 1 atom in the given mask'
# Create the window, open it, then wait for it to close
cmd_window = _guiwidgets.ActionWindow('printDihedrals', amber_prmtop,
widget_list, var_list, desc)
cmd_window.wait_window()
# See if we got any variables back
var = var_list[0].get()
if not var: return
try:
action = ParmedActions.printdihedrals(amber_prmtop, ArgumentList(var))
except Exception, err:
showerror('Unexpected Error!', '%s: %s' % (type(err).__name__, err))
return
