def __init__(self, grammarController):
self.grammarController = grammarController
self.idState = str(uuid.uuid4())
self._view = CreateStateView(self, self.idState)
self.log = logging.getLogger(__name__)
class CreateStateController(object):
"""Manages the creation of a new state"""
def __init__(self, grammarController):
self.grammarController = grammarController
self.idState = str(uuid.uuid4())
self._view = CreateStateView(self, self.idState)
self.log = logging.getLogger(__name__)
@property
def view(self):
return self._view
def displayErrorMessage(self, errorMessage):
if errorMessage is None:
self._view.errorImage.hide()
self._view.errorLabel.set_label("")
self._view.errorLabel.hide()
else:
self._view.errorLabel.set_label(errorMessage)
self._view.errorLabel.show()
self._view.errorImage.show()
def cancelButton_clicked_cb(self, event):
"""Callback executed when the user clicks on the cancel button"""
self._view.destroy()
def createButton_clicked_cb(self, event):
currentProject = self.grammarController.getCurrentProject()
"""callback executed when the user clicks on the create button"""
initialState = self._view.initialStateCheckButton.get_active()
stateName = self._view.nameEntry.get_text()
automata = currentProject.getGrammar().getAutomata()
errorMessage = None
# verify initialState is valid
if not initialState and automata is None:
errorMessage = _("The first created state must be an initial state")
self.displayErrorMessage(errorMessage)
return
# verify the name of the state is unique
found = False
if automata is not None:
for state in automata.getStates():
if state.getName() == stateName:
found = True
break
if found:
errorMessage = _("A state already has this name, please specify another one")
self.displayErrorMessage(errorMessage)
return
newState = NormalState(self.idState, stateName)
if automata is None:
automata = MMSTD(newState, currentProject.getVocabulary())
currentProject.getGrammar().setAutomata(automata)
automata.addState(newState)
self._view.destroy()
self.grammarController.restart()
def run(self):
self._view.run()