class InputCaterpillar(BoxLayout):
def __init__(self,**kwargs):
self.spacing=5
self.register_event_type('on_input')
super(InputCaterpillar, self).__init__(**kwargs)
self.orientation="vertical"
self.chain_widget=Caterpillar()
self.func=None
buttons=BoxLayout(orientation="horizontal")
for (k,v) in sorted(Caterpillar._colors.items()):
b=Button()
b.num=k
b.background_color=[c*3 for c in list(v)]+[1]
b.bind(on_press=self.color_press)
buttons.add_widget(b)
b=Button(text="<=")
b.bind(on_press=self.backspace)
buttons.add_widget(b)
b=Button(text=u"OK")
b.bind(on_press=self.enter)
buttons.add_widget(b)
self.add_widget(self.chain_widget)
self.add_widget(buttons)
def on_input(self,chain):
pass
def set_chain(self,chain):
# if caterpillar is valid it looks to the left, otherwise to the right
eyes='right'
eyes='left' if chain and self.func and self.func(chain) else 'right'
self.chain_widget.set_chain(chain,eye_direction=eyes)
def backspace(self,instance):
chain=self.chain_widget.get_chain()[:-1]
self.set_chain(chain)
def color_press(self,instance):
chain=self.chain_widget.get_chain()
if len(chain)==7: return
chain=chain+[instance.num]
self.set_chain(chain)
def enter(self,instance):
if self.chain_widget.get_chain()==[]:return
self.dispatch('on_input',tuple(self.chain_widget.get_chain()))
self.chain_widget.set_chain([])
class InputCaterpillar(BoxLayout):
def __init__(self, **kwargs):
self.register_event_type('on_input')
super(InputCaterpillar, self).__init__(**kwargs)
self.orientation = "vertical"
self.chain_widget = Caterpillar()
self.func = None
buttons = BoxLayout(orientation="horizontal")
for (k, v) in sorted(Caterpillar._colors.items()):
b = Button()
b.num = k
b.background_color = list(v) + [1]
b.bind(on_press=self.color_press)
buttons.add_widget(b)
b = Button(text="<=")
b.bind(on_press=self.backspace)
buttons.add_widget(b)
b = Button(text=u"OK")
b.bind(on_press=self.enter)
buttons.add_widget(b)
self.add_widget(self.chain_widget)
self.add_widget(buttons)
def on_input(self, chain):
pass
def set_chain(self, chain):
# if caterpillar is valid it looks to the left, otherwise to the right
eyes = 'right'
eyes = 'left' if chain and self.func and self.func(chain) else 'right'
self.chain_widget.set_chain(chain, eye_direction=eyes)
def backspace(self, instance):
chain = self.chain_widget.get_chain()[:-1]
self.set_chain(chain)
def color_press(self, instance):
chain = self.chain_widget.get_chain()
if len(chain) == 7: return
chain = chain + [instance.num]
self.set_chain(chain)
def enter(self, instance):
if self.chain_widget.get_chain() == []: return
self.dispatch('on_input', tuple(self.chain_widget.get_chain()))
self.chain_widget.set_chain([])
class Exam(BoxLayout):
def __init__(self,**kwargs):
self.register_event_type('on_finish')
self.register_event_type('on_answer')
super(Exam, self).__init__(**kwargs)
self.orientation="vertical"
self.question_label=Label()
self.chain_widget=Caterpillar()
buttons=BoxLayout(orientation="horizontal")
b=Button(text="Valid")
b.background_color=(0,1,0,1)
b.val=True
b.bind(on_press=self.answer)
buttons.add_widget(b)
b=Button(text="Invalid")
b.background_color=(1,0,0,1)
b.val=False
b.bind(on_press=self.answer)
buttons.add_widget(b)
self.add_widget(self.question_label)
self.add_widget(self.chain_widget)
self.add_widget(buttons)
def start_exam(self,valid,invalid,valid_history,invalid_history):
self.questions=self.make_questions(valid,invalid,valid_history,invalid_history)
self.question_num=0
self.ask_question()
def make_questions(self,valid,invalid,valid_history,invalid_history):
valid_num=random.randint(5,10)
invalid_num=15-valid_num
valids=[(x,True) for x in get_n(valid_num,valid,valid_history)]
invalids=[(x,False) for x in get_n(invalid_num,invalid,invalid_history)]
l=valids+invalids
random.shuffle(l)
return l
def ask_question(self):
if self.question_num==len(self.questions):
self.dispatch("on_finish",True)
else:
self.question_label.text="Question %s/%s"%(self.question_num+1,len(self.questions))
self.chain_widget.set_chain(self.questions[self.question_num][0])
def answer(self,instance):
self.dispatch("on_answer",self.questions[self.question_num][0])
if self.questions[self.question_num][1]==instance.val:
self.question_num+=1
self.ask_question()
else:
self.dispatch("on_finish",False)
def on_finish(self,*args):
pass
def on_answer(self,*args):
pass
