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# GNU Solfege - free ear training software
# Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005, 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, gobject
import soundcard
import abstract, statistics, statisticsviewer, gu, random
import lessonfile
class Teacher(abstract.Teacher):
def __init__(self, exname, app):
abstract.Teacher.__init__(self, exname, app)
self.lessonfileclass = lessonfile.HeaderLessonfile
# 60, 84, 100, 120
self.m_ped = [60, 120, 40, 168, 208, 80, 96, 139, 48, 69, 108, 192, 152,
88, 63, 100, 116, 176, 200, 52, 76, 126, 160,
84, 56, 44, 66, 72, 92, 104, 112, 132, 144, 184]
self.m_bpms = [40, 44, 48, 52, 56, 60, 63, 66, 69, # 0 - 8
72, 76, 80, 84, 88, 92, 96, 100, 104, # 9 - 17
108, 112, 116, 120, 126, 132, 138, 144, # 18 - 25
152, 160, 168, 176, 184, 192, 200, 208] # 26 - 33
self.m_statistics = statistics.LessonStatistics(self)
self.m_timeout_tag = None
self.m_question = None
self.m_practise_these = {}
v = self.get_list('active_bpms')
for bpm in self.m_bpms:
if bpm in v:
self.m_practise_these[bpm] = 1
else:
self.m_practise_these[bpm] = 0
def toggle_active(self, bpm):
self.m_practise_these[bpm] = not self.m_practise_these[bpm]
v = [bpm for bpm in self.m_practise_these if self.m_practise_these[bpm]]
self.set_string('active_bpms', str(v))
def get_possible_bpms(self):
return [n for n in self.m_practise_these.keys() \
if self.m_practise_these[n]]
def get_number_of_levels(self):
return len(self.m_ped)
def new_question(self):
last = self.m_question
if not self.get_possible_bpms():
return False
self.m_question = random.choice(self.get_possible_bpms())
while self.m_question == last and len(self.get_possible_bpms()) > 1:
self.m_question = random.choice(self.get_possible_bpms())
self.start_question(self.m_question)
self.q_status = self.QSTATUS_NEW
return True
def start_question(self, bpm):
self.tick()
if self.m_timeout_tag:
gobject.source_remove(self.m_timeout_tag)
self.m_timeout_tag = gobject.timeout_add(60000/bpm, self.tick)
def stop_question(self):
if self.m_timeout_tag:
gobject.source_remove(self.m_timeout_tag)
self.m_timeout_tag = None
def tick(self, _o=None):
soundcard.play_perc(8, 60, 90)
return 1
def guess_answer(self, bpm):
assert self.q_status != self.QSTATUS_NO
if self.m_question == bpm:
self.stop_question()
if self.q_status == self.QSTATUS_NEW:
self.m_statistics.add_correct(str(bpm))
self.q_status = self.QSTATUS_SOLVED
self.m_app.play_happy_sound()
return 1
else:
if self.q_status == self.QSTATUS_NEW:
self.m_statistics.add_wrong(str(self.m_question), str(bpm))
self.q_status = self.QSTATUS_WRONG
self.m_app.play_sad_sound()
def end_practise(self):
super(Teacher, self).end_practise()
self.stop_question()
self.q_status = self.QSTATUS_NO
def give_up(self):
self.stop_question()
print "FIXME not saving statistics"
self.q_status = self.QSTATUS_GIVE_UP
class Gui(abstract.Gui):
def __init__(self, teacher, window):
abstract.Gui.__init__(self, teacher, window)
################
# practise_box #
################
self.practise_box.set_spacing(gu.PAD)
self.m_buttons = []
vbox = gu.bVBox(self.practise_box, False)
for s, e in ((0, 9), (9, 18), (18, 26), (26, 34)):
box = gtk.HBox()
vbox.pack_start(box)
for i in range(s, e):
bpm = self.m_t.m_bpms[i]
button = gtk.Button(str(bpm))
box.pack_start(button)
button.connect('clicked', self.on_click)
button.connect('event', self.on_event)
button.set_data('bpm', bpm)
self.m_buttons.append(button)
self.g_flashbar = gu.FlashBar()
self.g_flashbar.show()
self.practise_box.pack_start(self.g_flashbar, False)
self.g_new = gu.bButton(self.action_area, _("_New tempo"), self.on_new)
self.g_give_up = gu.bButton(self.action_area, _("_Give up"), self.on_give_up)
self.g_give_up.set_sensitive(False)
self.practise_box.show_all()
##############
# statistics #
##############
self.g_statview = statisticsviewer.StatisticsViewer(self.m_t.m_statistics, _('Bpm'))
self.g_statview.show()
self.g_notebook.append_page(self.g_statview,
gtk.Label(_("Statistics")))
########
# init #
########
self.g_notebook.get_nth_page(1).hide()
self.update_buttons()
def on_enable_bpm(self, _o=None):
print "enable", _o
def on_event(self, button, event):
if event.type == gtk.gdk.BUTTON_RELEASE and event.button == 3:
self.m_t.toggle_active(button.get_data('bpm'))
self.update_buttons()
def on_level_change(self, adjustment):
self.set_int('level', adjustment.value)
self.update_buttons()
def on_new(self, _o=None):
try:
n = self.m_t.new_question()
except Exception, e:
if not self.standard_exception_handler(e):
raise
self.m_t.stop_question()
return
if n:
self.g_new.set_sensitive(
not self.get_bool('config/picky_on_new_question'))
self.g_give_up.set_sensitive(True)
self.m_buttons[0].grab_focus()
else:
self.g_flashbar.flash(_("You have to select some tempos to practise."))
def on_give_up(self, _o):
self.m_t.give_up()
self.g_flashbar.flash(str(self.m_t.m_question))
self.g_new.set_sensitive(True)
self.g_give_up.set_sensitive(False)
def update_buttons(self):
v = self.m_t.get_possible_bpms()
for b in self.m_buttons:
if b.get_data('bpm') in v:
b.get_children()[0].set_name("BpmActiveLabel")
else:
b.get_children()[0].set_name("BpmInactiveLabel")
def on_click(self, _o):
if self.m_t.q_status in (self.QSTATUS_SOLVED, self.QSTATUS_GIVE_UP):
return
if _o.get_data('bpm') not in self.m_t.get_possible_bpms():
return
if self.m_t.q_status == self.QSTATUS_NO:
self.g_flashbar.flash(_("Click 'New tempo' to begin."))
return
if self.m_t.guess_answer(_o.get_data('bpm')):
self.g_flashbar.flash(_("Correct, it is %i") % _o.get_data('bpm'))
self.g_give_up.set_sensitive(False)
self.g_new.set_sensitive(True)
self.g_new.grab_focus()
else:
self.g_flashbar.flash(_("Wrong"))
self.g_statview.update()
def on_start_practise(self):
self.g_flashbar.flash(_("Click 'New tempo' to begin."))
self.g_new.grab_focus()
self.g_statview.update()
def on_end_practise(self):
self.m_t.end_practise()
self.g_new.set_sensitive(True)
self.g_give_up.set_sensitive(False)
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