def __init__(self):
"""Creates a new mathogen tutorial display, with a clickable
list of avaliable tutorials."""
gtk.VBox.__init__(self, False, 0)
self._exams = MathogenExam()
self._menu = self._build_menu(self._exams)
self._menu.show()
self.pack_start(self._menu, True, True, 0)
self._exam_box = gtk.VBox(False, 0)
self.pack_start(self._exam_box, True, True, 0)
#hidden until an exam is started
self._problem_viewer = gtk.VBox(True, 0)
self._problem_viewer.show()
self._exam_box.pack_start(self._problem_viewer, True, True, 0)
self._problem_display = gtk.HBox(True, 0)
self._problem_display.show()
self._problem_viewer.pack_start(self._problem_display, True, True, 0)
self.label_num1 = gtk.Label("0")
self.label_operator = gtk.Label("%")
self.label_num2 = gtk.Label("0")
self.label_equals = gtk.Label("=")
self.answer = gtk.Entry(3)
self.button_go = gtk.Button("Submit\nanswer")
self.answer.connect("activate", self._check_answer_cb)
self.button_go.connect("clicked", self._check_answer_cb)
_set_font_params(self.label_num1, scale=_CHALLENGE_TEXT_SCALE)
_set_font_params(self.label_operator, scale=_CHALLENGE_TEXT_SCALE)
_set_font_params(self.label_num2, scale=_CHALLENGE_TEXT_SCALE)
_set_font_params(self.label_equals, scale=_CHALLENGE_TEXT_SCALE)
_set_font_params(self.answer, scale=_CHALLENGE_TEXT_SCALE)
_set_font_params(self.button_go.get_child(), scale=_CHALLENGE_BUTTON_TEXT_SCALE)
self._problem_display.pack_start(self.label_num1, True, True, 0)
self._problem_display.pack_start(self.label_operator, True, True, 0)
self._problem_display.pack_start(self.label_num2, True, True, 0)
self._problem_display.pack_start(self.label_equals, True, True, 0)
self._problem_display.pack_start(self.answer, True, True, 0)
self._problem_display.pack_start(self.button_go, True, True, 0)
self.label_num1.show()
self.label_operator.show()
self.label_num2.show()
self.label_equals.show()
self.answer.show()
self.button_go.show()
self._problem_feedback = gtk.Label("")
_set_font_params(self._problem_feedback, scale=_MESSAGE_TEXT_SCALE)
self._problem_feedback.show()
self._problem_viewer.pack_start(self._problem_feedback, True, True, 0)
self._exam_feedback = gtk.Label("No exam completed")
_set_font_params(self._exam_feedback, scale=_MESSAGE_TEXT_SCALE)
#hidden until user completes an exam
self._exam_box.pack_start(self._exam_feedback, True, True, 0)
self._progress_strip = gtk.HBox(False, 0)
self._progress_strip.show()
self._exam_box.pack_end(self._progress_strip, False, False, 0)
self._btn_menu = gtk.Button("Menu")
self._btn_menu.connect("clicked", self._btn_menu_clicked_cb)
self._btn_menu.show()
self._progress_strip.pack_start(self._btn_menu, False, False, 0)
self._progress = gtk.ProgressBar()
_set_font_params(self._progress, scale=_PROGRESS_TEXT_SCALE)
self._progress.set_text("Not doing an exam")
self._progress.set_fraction(0.0)
self._progress.show()
self._progress_strip.pack_end(self._progress, True, True, 0)
self.show()
class MathogenExamGui(gtk.VBox):
"""Handles GUI display for a mathogen tutorials"""
def __init__(self):
"""Creates a new mathogen tutorial display, with a clickable
list of avaliable tutorials."""
gtk.VBox.__init__(self, False, 0)
self._exams = MathogenExam()
self._menu = self._build_menu(self._exams)
self._menu.show()
self.pack_start(self._menu, True, True, 0)
self._exam_box = gtk.VBox(False, 0)
self.pack_start(self._exam_box, True, True, 0)
#hidden until an exam is started
self._problem_viewer = gtk.VBox(True, 0)
self._problem_viewer.show()
self._exam_box.pack_start(self._problem_viewer, True, True, 0)
self._problem_display = gtk.HBox(True, 0)
self._problem_display.show()
self._problem_viewer.pack_start(self._problem_display, True, True, 0)
self.label_num1 = gtk.Label("0")
self.label_operator = gtk.Label("%")
self.label_num2 = gtk.Label("0")
self.label_equals = gtk.Label("=")
self.answer = gtk.Entry(3)
self.button_go = gtk.Button("Submit\nanswer")
self.answer.connect("activate", self._check_answer_cb)
self.button_go.connect("clicked", self._check_answer_cb)
_set_font_params(self.label_num1, scale=_CHALLENGE_TEXT_SCALE)
_set_font_params(self.label_operator, scale=_CHALLENGE_TEXT_SCALE)
_set_font_params(self.label_num2, scale=_CHALLENGE_TEXT_SCALE)
_set_font_params(self.label_equals, scale=_CHALLENGE_TEXT_SCALE)
_set_font_params(self.answer, scale=_CHALLENGE_TEXT_SCALE)
_set_font_params(self.button_go.get_child(), scale=_CHALLENGE_BUTTON_TEXT_SCALE)
self._problem_display.pack_start(self.label_num1, True, True, 0)
self._problem_display.pack_start(self.label_operator, True, True, 0)
self._problem_display.pack_start(self.label_num2, True, True, 0)
self._problem_display.pack_start(self.label_equals, True, True, 0)
self._problem_display.pack_start(self.answer, True, True, 0)
self._problem_display.pack_start(self.button_go, True, True, 0)
self.label_num1.show()
self.label_operator.show()
self.label_num2.show()
self.label_equals.show()
self.answer.show()
self.button_go.show()
self._problem_feedback = gtk.Label("")
_set_font_params(self._problem_feedback, scale=_MESSAGE_TEXT_SCALE)
self._problem_feedback.show()
self._problem_viewer.pack_start(self._problem_feedback, True, True, 0)
self._exam_feedback = gtk.Label("No exam completed")
_set_font_params(self._exam_feedback, scale=_MESSAGE_TEXT_SCALE)
#hidden until user completes an exam
self._exam_box.pack_start(self._exam_feedback, True, True, 0)
self._progress_strip = gtk.HBox(False, 0)
self._progress_strip.show()
self._exam_box.pack_end(self._progress_strip, False, False, 0)
self._btn_menu = gtk.Button("Menu")
self._btn_menu.connect("clicked", self._btn_menu_clicked_cb)
self._btn_menu.show()
self._progress_strip.pack_start(self._btn_menu, False, False, 0)
self._progress = gtk.ProgressBar()
_set_font_params(self._progress, scale=_PROGRESS_TEXT_SCALE)
self._progress.set_text("Not doing an exam")
self._progress.set_fraction(0.0)
self._progress.show()
self._progress_strip.pack_end(self._progress, True, True, 0)
self.show()
def _check_answer_cb(self, widget, data=None):
user_input = self.answer.get_text()
if not user_input:
self._problem_feedback.set_text("You didn't enter an answer yet")
return
try:
input_num = int(user_input)
except ValueError:
self._problem_feedback.set_text("Your input doesn't look like a number")
return
if self._exams.try_answer(input_num):
self._problem_feedback.set_text("Correct")
else:
self._problem_feedback.set_text("Incorrect")
self._show_progress()
self.answer.set_sensitive(False)
gobject.timeout_add(_NEW_QUESTION_DELAY, self._next_problem_cb)
def _next_problem_cb(self):
problem = self._exams.get_problem()
if problem is not None:
self._show_problem(problem)
else: #no problems left, exam finished
correct = self._exams.correct_count()
questions = self._exams.question_count()
grade = 100 * correct / questions
raw_feedback = "Exam complete! Well done.\n\nAnswered {0} of {1} questions correctly.\n\nYour grade is {2}%"
feedback = raw_feedback.format(correct, questions, grade)
self._show_exam_feedback(feedback)
return False # return false so that it stops the timeout and runs only once
def _show_exam_feedback(self, feedback):
self._problem_viewer.hide()
self._exam_feedback.set_text(feedback)
self._exam_feedback.show()
def _btn_menu_clicked_cb(self, widget, data=None):
self._exam_box.hide()
self._menu.show()
def _menu_option_clicked_cb(self, widget, data):
self._start_exam(data)
def _build_menu(self, exams):
menu = gtk.VBox(True, 20)
for exam in exams.get_exam_list():
btn = gtk.Button(exams.get_label(exam))
_set_font_params(btn.get_child(), scale=_MENU_BUTTON_TEXT_SCALE)
btn.show()
btn.connect("clicked", self._menu_option_clicked_cb, exam)
menu.pack_start(btn, True, True, 0)
return menu
def _start_exam(self, exam):
if self._exams.start_exam(exam):
self._show_problem(self._exams.get_problem())
self._show_progress()
else:
self._show_exam_feedback("Error: this exam doesn't have any questions in it!\n\nTry a different one.")
pass
self._menu.hide()
self._exam_feedback.hide()
self._problem_viewer.show()
self._exam_box.show()
def _show_problem(self, prob):
self.label_num1.set_text(str(prob.operand1))
self.label_num2.set_text(str(prob.operand2))
self.label_operator.set_text(prob.operator)
self.answer.set_text("")
self.answer.set_sensitive(True)
self.answer.grab_focus()
self._problem_feedback.set_text("")
def _show_progress(self):
correct = self._exams.correct_count()
answers = self._exams.answer_count()
questions = self._exams.question_count()
self._progress.set_text("Answered {0} of {1} questions. {2} correct".format(answers, questions, correct))
fraction = float(answers) / float(questions)
self._progress.set_fraction(fraction)
