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# GNU Solfege - free ear training software
# Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005, 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/>.
from __future__ import division
import gtk, gobject
import gu, inputwidgets
from multipleintervalconfigwidget import nIntervalCheckBox
import soundcard, mpd
import abstract, utils
import statistics, statisticsviewer
import lessonfile
class Teacher(abstract.Teacher):
OK = 0
ERR_PICKY = 1
ERR_NO_INTERVALLS = 2
ERR_NOTERANGE = 3
def __init__(self, exname, app):
abstract.Teacher.__init__(self, exname, app)
self.lessonfileclass = lessonfile.IntervalsLessonfile
self.m_statistics = statistics.HarmonicIntervalStatistics(self)
self.m_tonika = None
self.m_interval = None
def enter_test_mode(self):
self.m_custom_mode = False
self.m_statistics.enter_test_mode()
self.m_P.enter_test_mode()
def new_question(self, L, H):
"""
Return values:
OK: new question created, all ok
ERR_NO_INTERVALLS: no new question because no intervals are selected
ERR_PICKY: you have to solve this question before you are allowed to create new
"""
if self.m_timeout_handle:
gobject.source_remove(self.m_timeout_handle)
self.m_timeout_handle = None
if self.m_app.m_test_mode:
old_tonika = self.m_tonika
if old_tonika:
old_toptone = old_tonika + self.m_interval
self.m_P.next_test_question()
self.m_interval = self.m_P.m_test_questions[self.m_P.m_test_idx]
#FIXME use tone pitch range from preferences window.
self.m_tonika = mpd.MusicalPitch()
# Do this loop to make sure two questions in a row does not have
# the same top or bottom tone.
while True:
self.m_tonika.randomize("f", "f'")
if not old_tonika:
break
if old_tonika != self.m_tonika and self.m_tonika + self.m_interval != old_toptone:
break
self.q_status = self.QSTATUS_NEW
return self.OK
if self.get_bool('config/picky_on_new_question') \
and self.q_status in [self.QSTATUS_NEW, self.QSTATUS_WRONG]:
return Teacher.ERR_PICKY
if self.get_list('intervals') == []:
self.q_status = self.QSTATUS_NO
return Teacher.ERR_NO_INTERVALLS
last_question = self.m_interval
last_tonika = self.m_tonika
L, H = utils.adjust_low_high_to_irange(L, H, self.get_list('intervals'))
while 1:
# in this loop we will try to make a question that is not the
# same that the last one.
self.m_tonika, self.m_interval = \
utils.random_tonika_and_interval(L, H,
self.get_list('intervals'))
if last_question is None:
break
if (self.m_interval == last_question
and self.m_tonika == last_tonika) \
and (len(self.get_list('intervals')) > 1 or (H - L) > 1):
continue
break
assert self.m_tonika
self.q_status = self.QSTATUS_NEW
return Teacher.OK
def guess_answer(self, answer):
"""
Return: 1 if correct, None if wrong
"""
assert self.q_status not in (self.QSTATUS_NO, self.QSTATUS_GIVE_UP)
if self.m_interval == answer:
if self.q_status == self.QSTATUS_NEW \
and not self.m_custom_mode:
self.m_statistics.add_correct(self.m_interval)
self.maybe_auto_new_question()
self.q_status = self.QSTATUS_SOLVED
return 1
else:
if self.q_status == self.QSTATUS_NEW:
if not self.m_custom_mode:
self.m_statistics.add_wrong(self.m_interval, answer)
self.q_status = self.QSTATUS_WRONG
if self.m_app.m_test_mode:
self.maybe_auto_new_question()
def give_up(self):
"""This function is only called *after* the user already has
answered wrong once, so the statistics are already updated.
"""
self.q_status = self.QSTATUS_GIVE_UP
def play_question(self):
if self.q_status == self.QSTATUS_NO:
return
instr_low, instr_low_vel, instr_high, instr_high_vel = self.get_instrument_config(2)
low_tone = self.m_tonika.semitone_pitch()
high_tone = (self.m_tonika+self.m_interval).semitone_pitch()
t1 = soundcard.Track()
t1.set_bpm(self.get_int('config/default_bpm'))
t1.set_patch(instr_low)
t1.start_note(low_tone, instr_low_vel)
t1.notelen_time(4)
t1.stop_note(low_tone, instr_low_vel)
t2 = soundcard.Track()
t1.set_bpm(self.get_int('config/default_bpm'))
t1.set_patch(instr_high)
t2.start_note(high_tone, instr_high_vel)
t2.notelen_time(4)
t2.stop_note(high_tone, instr_high_vel)
soundcard.synth.play_track(t1, t2)
return 1
def play_melodic(self):
if self.q_status == self.QSTATUS_NO:
return
if self.get_bool('config/override_default_instrument'):
instr_low = self.get_int('config/lowest_instrument')
instr_low_vel = self.get_int('config/lowest_instrument_velocity')
instr_high = self.get_int('config/highest_instrument')
instr_high_vel = self.get_int('config/highest_instrument_velocity')
else:
instr_low = instr_high = self.get_int('config/preferred_instrument')
instr_low_vel = instr_high_vel \
= self.get_int('config/preferred_instrument_velocity')
low_tone = self.m_tonika.semitone_pitch()
high_tone = (self.m_tonika+self.m_interval).semitone_pitch()
m = soundcard.Track()
m.set_bpm(self.get_int('config/default_bpm'))
m.set_patch(instr_low)
m.note(4, low_tone, instr_low_vel)
m.set_patch(instr_high)
m.note(4, high_tone, instr_high_vel)
soundcard.synth.play_track(m)
def start_practise(self):
self.m_custom_mode = bool(not self.m_P.header.intervals)
if self.m_P.header.intervals:
self.set_list('intervals', self.m_P.header.intervals)
self.set_bool('disable_unused_intervals', self.m_P.header.disable_unused_intervals)
# Need to reset these two because of code in test mode.
self.m_tonika = None
self.m_interval = None
class Gui(abstract.IntervalGui):
def __init__(self, teacher, window):
abstract.IntervalGui.__init__(self, teacher, window)
self.g_test_stat_dlg = None
################
# practice_box #
################
self.g_repeat_melodic = gu.bButton(self.action_area,
_("Repeat _melodic"), self.repeat_melodic)
self.g_repeat_melodic.set_sensitive(False)
self.g_give_up = gu.bButton(self.action_area, _("_Give up"), self.give_up)
self.g_give_up.set_sensitive(False)
##############
# config_box #
##############
self.g_ask_for_frame = frame = gtk.Frame(_("Ask for these intervals"))
self.config_box.pack_start(frame, False)
self.g_interval_selector = nIntervalCheckBox(self.m_exname, 'intervals')
def _ff(var):
if self.m_t.m_custom_mode:
# If we are running in custom mode, then the user can
# select himself what intervals to practise. And then
# we have to reset the exercise.
self.on_end_practise()
self.on_start_practise()
self.add_watch('intervals', _ff)
self.g_interval_selector.set_border_width(gu.PAD)
frame.add(self.g_interval_selector)
#------we need some space
self.config_box.pack_start(gtk.HBox(), False,
padding=gu.PAD_SMALL)
# ------------------------------------------
self._add_auto_new_question_gui(self.config_box)
# ----------------------------------------------
self._create_select_inputwidget_gui()
# ------------ frame -------------------
self.config_box.set_spacing(0)
self.config_box.show_all()
##############
# statistics #
##############
self.setup_statisticsviewer(statisticsviewer.StatisticsViewer,
_("Harmonic interval"))
self.select_inputwidget()
def give_up(self, _o=None):
if self.m_t.q_status == self.QSTATUS_WRONG:
self.g_flashbar.push(_("The answer is: %s")
% mpd.Interval.new_from_int(self.m_t.m_interval).get_name())
self.m_t.give_up()
self.g_new_interval.set_sensitive(True)
self.g_new_interval.grab_focus()
self.g_give_up.set_sensitive(False)
def get_interval_input_list(self):
return self.get_list('intervals')
def click_on_interval(self, mouse_button, interval, midi_int):
if mouse_button == 1:
# Do nothing if the user clicks on the anwer buttons or on
# another input widget before the test has started.
if self.m_t.m_app.m_test_mode and self.m_t.q_status == self.QSTATUS_NO:
self.g_flashbar.flash(_("Click 'Start test' to begin."))
return
# we have to ignore intervals greater than decime, because
# the statistics viewer can't handle it. It is no big deal
# to fix it, but then the statistics can become almost unreadable
# because of so many intervals.
if not -17 < interval < 17:
self.g_flashbar.flash(_("Ignoring intervals greater than decim."))
self.g_input.forget_last_tone()
return
if self.m_t.q_status == self.QSTATUS_NO:
self.g_flashbar.flash(_("Click 'New interval' to begin."))
return
if self.m_t.q_status == self.QSTATUS_SOLVED:
if self.m_t.guess_answer(interval):
self.g_flashbar.flash(_("Correct, but you have already solved this question"))
else:
self.g_flashbar.flash(_("Wrong, but you have already solved this question"))
elif self.m_t.q_status in (self.QSTATUS_NEW, self.QSTATUS_WRONG):
if self.m_t.guess_answer(interval):
self.g_flashbar.flash(_("Correct"))
self.g_new_interval.set_sensitive(True)
self.g_new_interval.grab_focus()
self.g_give_up.set_sensitive(False)
else:
self.g_flashbar.flash(_("Wrong"))
self.g_give_up.set_sensitive(True)
if self.get_bool("config/auto_repeat_question_if_wrong_answer"):
self.m_t.play_question()
self.g_input.set_first_note(self.m_t.m_tonika)
elif mouse_button == 2:
# we only get here if you use one if the instrument widgets, not
# with the buttons interface.
soundcard.play_note(self.get_int('config/preferred_instrument'),
4, midi_int,
self.get_int('config/preferred_instrument_velocity'))
elif mouse_button == 3 and self.m_t.q_status != self.QSTATUS_NO:
instr_low, instr_low_vel, instr_high, instr_high_vel = self.m_t.get_instrument_config(2)
n2 = self.m_t.m_tonika + interval
t1 = self.m_t.m_tonika + interval
t1 = soundcard.Track()
t1.set_patch(instr_low)
t1.start_note(self.m_t.m_tonika.semitone_pitch(), instr_low_vel)
t1.notelen_time(4)
t1.stop_note(self.m_t.m_tonika.semitone_pitch(), instr_high_vel)
t2 = soundcard.Track()
t2.set_patch(instr_high)
t2.start_note(n2.semitone_pitch(), instr_low_vel)
t2.notelen_time(4)
t2.stop_note(n2.semitone_pitch(), instr_high_vel)
soundcard.synth.play_track(t1, t2)
def new_question(self, _o=None):
"""This function is called when you click on the 'New interval'
button, or when you use the key bindings. So it can be called even
if the 'New interval' button is insensitive.
"""
if self.m_t.m_app.m_test_mode and self.m_t.m_P.is_test_complete():
self.do_test_complete()
return
if self.m_t.m_app.m_test_mode:
self.g_new_interval.hide()
if isinstance(self.g_input, inputwidgets.IntervalButtonsWidget):
g = self.m_t.new_question(self.get_string('user/lowest_pitch'),
self.get_string('user/highest_pitch'))
else:
g = self.m_t.new_question(self.g_input.m_lowest_tone,
self.g_input.m_highest_tone)
if g == Teacher.OK: # new question, everything is OK
self.g_repeat.set_sensitive(True)
self.g_repeat_melodic.set_sensitive(True)
self.g_input.set_first_note(self.m_t.m_tonika)
def exception_cleanup():
self.m_t.end_practise()
self.g_repeat.set_sensitive(False)
self.g_repeat_melodic.set_sensitive(False)
try:
self.m_t.play_question()
except Exception, e:
if not self.standard_exception_handler(e, exception_cleanup):
raise
return
self.g_new_interval.set_sensitive(
not self.get_bool('config/picky_on_new_question'))
self.g_flashbar.clear()
#inputwidget 0 is always the buttons.
if self.get_int('inputwidget') == 0:
self.g_input.grab_focus_first_sensitive_button()
elif g == Teacher.ERR_PICKY:
self.g_flashbar.flash(_("You have to solve this question first."))
elif g == Teacher.ERR_NO_INTERVALLS:
self.g_repeat.set_sensitive(False)
self.g_repeat_melodic.set_sensitive(False)
self.g_flashbar.clear()
self.g_flashbar.flash(
_("You have to select some intervals to practise."))
def repeat_melodic(self, *w):
self.m_t.play_melodic()
self.g_input.grab_focus_first_sensitive_button()
def on_start_practise(self):
self.m_t.start_practise()
if self.m_t.m_P.header.lesson_heading:
self.set_lesson_heading(self.m_t.m_P.header.lesson_heading)
else:
self.set_lesson_heading(_("Identify the interval"))
if self.m_t.m_custom_mode:
self.g_ask_for_frame.show()
else:
self.m_t.m_statistics.reset_session()
self.g_ask_for_frame.hide()
self.g_statview.g_heading.set_text("%s - %s" % (_("Harmonic interval"), self.m_t.m_P.header.title))
self.g_new_interval.grab_focus()
if self.m_t.m_app.m_test_mode:
self.g_flashbar.delayed_flash(self.short_delay,
_("Click 'Start test' to begin."))
else:
self.g_flashbar.delayed_flash(self.short_delay,
_("Click 'New interval' to begin."))
def on_end_practise(self):
self.m_t.end_practise()
self.g_new_interval.set_sensitive(True)
self.g_repeat.set_sensitive(False)
self.g_repeat_melodic.set_sensitive(False)
self.g_give_up.set_sensitive(False)
self.g_flashbar.clear()
self.g_input.clear()
def enter_test_mode(self):
self.m_saved_q_auto = self.get_bool('new_question_automatically')
self.m_saved_s_new = self.get_float('seconds_before_new_question')
self.set_bool('new_question_automatically', True)
self.set_float('seconds_before_new_question', 0.5)
self.m_t.enter_test_mode()
self.g_new_interval.set_label(_("_Start test"))
self.g_repeat_melodic.hide()
self.g_cancel_test.show()
self.g_give_up.hide()
def exit_test_mode(self):
self.set_bool('new_question_automatically', self.m_saved_q_auto)
self.set_float('seconds_before_new_question', self.m_saved_s_new)
self.m_t.exit_test_mode()
self.g_new_interval.show()
self.g_new_interval.set_label(_("_New interval"))
self.g_repeat_melodic.show()
self.g_give_up.show()
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