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# GNU Solfege - free ear training software
# Copyright (C) 2006, 2007, 2008 Tom Cato Amundsen
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
import gtk
import gu
import lessonfile
import abstract
import statistics
import statisticsviewer
import mpd
import utils
class Teacher(abstract.Teacher):
OK = 0
ERR_NO_QUESTION = 2
def __init__(self, exname, app):
abstract.Teacher.__init__(self, exname, app)
self.lessonfileclass = lessonfile.ElembuilderLessonfile
self.m_statistics = statistics.LessonStatistics(self)
def new_question(self):
self.m_P.select_random_question()
self.q_status = self.QSTATUS_NEW
return self.OK
def guess_answer(self, answer):
if [e['name'] for e in self.m_P.get_question().elements] == answer:
if self.q_status == self.QSTATUS_NEW \
and not self.m_custom_mode:
self.m_statistics.add_correct(self.m_P.get_cname())
self.q_status = self.QSTATUS_SOLVED
return True
else:
if self.q_status == self.QSTATUS_NEW:
if not self.m_custom_mode:
self.m_statistics.add_wrong(self.m_P.get_cname(), "None")
self.q_status = self.QSTATUS_WRONG
return False
def give_up(self):
self.q_status = self.QSTATUS_GIVE_UP
class MultiButton(gtk.Button):
def __init__(self, label):
gtk.Button.__init__(self)
if isinstance(label, lessonfile.plstring):
hp = gu.HarmonicProgressionLabel(label)
hp.show_all()
self.add(hp)
else:
l = gtk.Label(label)
l.show()
self.add(l)
self.m_marked_wrong = False
def mark_wrong(self):
if self.m_marked_wrong:
return
self.m_marked_wrong = True
vbox = gtk.VBox()
assert len(self.get_children()) == 1
self.get_children()[0].reparent(vbox)
self.add(vbox)
label = gtk.Label()
label.set_markup("<span size='small'>%s</span>" % gu.escape(_("Wrong")))
label.show()
vbox.pack_start(label)
vbox.show()
class Gui(abstract.LessonbasedGui):
def __init__(self, teacher, window):
abstract.LessonbasedGui.__init__(self, teacher, window)
self.g_lesson_heading.hide()
self.g_music_displayer = mpd.musicdisplayer.MusicDisplayer(utils.play_tone)
self.practise_box.pack_start(self.g_music_displayer, False)
self.g_answer_button_box = gu.NewLineBox()
self.practise_box.pack_start(self.g_answer_button_box)
# The user fill the answer in this box
self.g_answer_frame = gtk.Frame()
self.g_answer_frame.set_shadow_type(gtk.SHADOW_IN)
self.practise_box.pack_start(self.g_answer_frame, False, False)
self.g_answer = gtk.HBox()
self.g_answer_frame.add(self.g_answer)
self.g_answer_frame.show_all()
# Flashbar
self.g_flashbar = gu.FlashBar()
self.g_flashbar.show()
self.practise_box.pack_start(self.g_flashbar, False)
# action area
self.g_new = gu.bButton(self.action_area, _("_New"), self.new_question)
self.g_play_music = gu.bButton(self.action_area, _("P_lay music"),
lambda w: self.run_exception_handled(self.m_t.m_P.play_question))
self.g_display_music = gu.bButton(self.action_area, _("_Display music"),
self.show_answer)
self.g_repeat = gu.bButton(self.action_area, _("_Repeat"),
self.repeat_question)
self.g_guess_answer = gu.bButton(self.action_area, _("Guess _answer"),
self.guess_answer)
self.g_play_tonic = gu.bButton(self.action_area, _("Play _tonic"),
lambda w: self.run_exception_handled(self.m_t.play_tonic))
self.g_give_up = gu.bButton(self.action_area, _("_Give up"),
self.give_up)
self.g_backspace = gu.bButton(self.action_area, _("_Backspace"),
self.on_backspace)
self.g_backspace.set_sensitive(False)
self.g_give_up.set_sensitive(False)
##############
# statistics #
##############
self.setup_statisticsviewer(statisticsviewer.PercentagesStatisticsViewer,
_("elembuilder"))
def new_question(self, widget):
self.g_answer.foreach(lambda w: w.destroy())
self.m_users_answer = []
self.m_t.new_question()
# These two will be insensitive if we have an exception or not.
self.g_backspace.set_sensitive(False)
self.g_give_up.set_sensitive(False)
#if 'show' in self.m_t.m_P.header.at_question_start \
# and 'play' in self.m_t.m_P.header.at_question_start:
if self.m_t.m_P.header.have_music_displayer:
self.g_music_displayer.clear(self.m_t.m_P.header.music_displayer_stafflines)
try:
self.do_at_question_start_show_play()
except Exception, e:
# Setup buttons when we have an exception. We have to do this
# before we call standard_exception_handler because we wan't
# the buttons in this state, even if standard_exception_handler
# can not handle it.
self.g_new.set_sensitive(True)
self.g_repeat.set_sensitive(False)
self.g_guess_answer.set_sensitive(False)
self.g_play_tonic.set_sensitive(False)
if not self.standard_exception_handler(e):
raise
else:
self.g_new.set_sensitive(
not self.get_bool('config/picky_on_new_question'))
self.g_repeat.set_sensitive(True)
self.g_guess_answer.set_sensitive(True)
self.g_play_tonic.set_sensitive('tonic' in self.m_t.m_P.get_question())
def repeat_question(self, widget):
self.m_t.m_P.play_question()
def guess_answer(self, widget):
if self.m_t.q_status == self.QSTATUS_NO:
if self.m_t.m_app.m_test_mode:
self.g_flashbar.flash(_("Click 'Start test' to begin."))
else:
self.g_flashbar.flash(_("Click 'New' to begin."))
return
elif self.m_t.q_status in (self.QSTATUS_NEW, self.QSTATUS_WRONG):
if self.m_t.guess_answer(self.m_users_answer):
self.g_flashbar.flash(_("Correct"))
self.g_new.set_sensitive(True)
self.g_new.grab_focus()
self.g_guess_answer.set_sensitive(False)
self.g_give_up.set_sensitive(False)
self.g_backspace.set_sensitive(False)
self.show_answer()
else:
self.g_flashbar.flash(_("Wrong"))
max_button_height = 0
for idx, a in enumerate(self.m_users_answer):
if idx + 1 > len(self.m_t.m_P.get_question().elements):
break
if idx + 1 > len(self.m_users_answer):
break
if self.m_users_answer[idx] != self.m_t.m_P.get_question().elements[idx]['name']:
self.g_answer.get_children()[idx].mark_wrong()
if len(self.m_users_answer) > len(self.m_t.m_P.get_question().elements):
for btn in self.g_answer.get_children()[len(self.m_t.m_P.get_question().elements):]:
btn.mark_wrong()
# We only recalculate the height of the answer frame
# if there are any buttons in it. This to avoid the frame
# disappearing.
if self.g_answer.get_children():
for btn in self.g_answer.get_children():
max_button_height = max(max_button_height, btn.size_request()[1])
self.g_answer_frame.set_size_request(-1, max_button_height)
self.g_give_up.set_sensitive(True)
def on_backspace(self, widget):
if self.m_users_answer:
del self.m_users_answer[-1]
self.g_answer.get_children()[-1].destroy()
def add_element(self, widget, element):
self.m_users_answer.append(element['name'])
b = MultiButton(element['label'])
b.show()
self.g_answer.pack_start(b, False, False)
self.g_backspace.set_sensitive(True)
def give_up(self, widget):
self.g_answer.foreach(lambda w: w.destroy())
self.m_t.give_up()
for elem in self.m_t.m_P.get_question().elements:
b = MultiButton(elem['label'])
b.show()
self.g_answer.pack_start(b, False, False)
self.show_answer()
self.g_new.set_sensitive(True)
self.g_give_up.set_sensitive(False)
self.g_guess_answer.set_sensitive(False)
self.g_backspace.set_sensitive(False)
def on_start_practise(self):
self.m_t.m_custom_mode = False # FIXME
if self.m_t.m_P.header.elements == 'auto':
v = []
for question in self.m_t.m_P.m_questions:
for elem in question['elements']:
if elem not in v:
v.append(elem)
def xcmp(a, b):
return cmp(self.m_t.m_P.blocklists['element'].index(a),
self.m_t.m_P.blocklists['element'].index(b))
v.sort(xcmp)
self.m_t.m_P.header.elements = v
self.g_answer_button_box.empty()
self.g_answer.foreach(lambda w: w.destroy())
#
if not self.m_t.m_P.header.music_displayer_stafflines:
self.m_t.m_P.header.music_displayer_stafflines = 1
#
if self.m_t.m_P.header.have_music_displayer:
self.g_music_displayer.show()
self.g_music_displayer.clear(self.m_t.m_P.header.music_displayer_stafflines)
else:
self.g_music_displayer.hide()
#
self.g_statview.g_heading.set_text(self.m_t.m_P.header.title)
self.m_elem_button_max_height = 0
for elem in self.m_t.m_P.header.elements:
b = MultiButton(elem['label'])
b.connect('clicked', self.add_element, elem)
b.show()
self.g_answer_button_box.add_widget(b)
self.g_answer_button_box.show_widgets()
self.g_answer.set_size_request(-1, self.g_answer_button_box.get_max_child_height())
self.set_lesson_heading(self.m_t.m_P.header.lesson_heading)
self.m_users_answer = []
self.g_new.set_sensitive(True)
self.g_repeat.set_sensitive(False)
self.g_guess_answer.set_sensitive(False)
self.g_play_tonic.set_sensitive(False)
if [q for q in self.m_t.m_P.m_questions if 'tonic' in q]:
self.g_play_tonic.show()
else:
self.g_play_tonic.hide()
self.show_hide_at_question_start_buttons()
self.g_flashbar.flash(_("Click 'New' to begin."))
def on_end_practise(self):
self.m_t.end_practise()
self.g_backspace.set_sensitive(False)
self.g_give_up.set_sensitive(False)
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