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# GNU Solfege - free ear training software
# Copyright (C) 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 gobject
import gtk
import gu
import abstract
import lessonfile
import mpd
import utils
import soundcard
class Teacher(abstract.Teacher):
OK = 1
ERR_NO_QUESTION = 2
def __init__(self, exname, app):
abstract.Teacher.__init__(self, exname, app)
self.lessonfileclass = lessonfile.SingAnswerLessonfile
def new_question(self):
assert self.m_P
self.m_P.select_random_question()
self.q_status = self.QSTATUS_NEW
return self.OK
class Gui(abstract.LessonbasedGui):
def __init__(self, teacher, window):
abstract.Gui.__init__(self, teacher, window)
self.g_music_displayer = mpd.musicdisplayer.MusicDisplayer(utils.play_tone)
self.practise_box.pack_start(self.g_music_displayer)
self.g_flashbar = gu.FlashBar()
self.practise_box.pack_start(self.g_flashbar)
self.g_music_displayer.clear()
self.g_new = gu.bButton(self.action_area, _("_New"), self.new_question)
self.g_repeat = gu.bButton(self.action_area, _("_Repeat"),
lambda w: self.run_exception_handled(self.m_t.m_P.play_question))
self.g_repeat_arpeggio = gu.bButton(self.action_area,
_("Repeat _arpeggio"),
lambda w: self.run_exception_handled(self.m_t.m_P.play_question_arpeggio))
self.g_play_answer = gu.bButton(self.action_area,
_("_Play answer"), self.hear_answer)
##############
# config_box #
##############
self.add_random_transpose_gui()
self.practise_box.show_all()
def new_question(self, widget):
def exception_cleanup():
soundcard.synth.stop()
self.g_music_displayer.clear()
self.g_repeat.set_sensitive(False)
self.g_repeat_arpeggio.set_sensitive(False)
self.g_play_answer.set_sensitive(False)
if self.m_t.m_P.header.have_music_displayer:
self.g_music_displayer.clear()
try:
g = self.m_t.new_question()
self.g_flashbar.push(self.m_t.m_P.get_question().question_text)
if isinstance(self.m_t.m_P.get_question().music, lessonfile.MpdDisplayable):
self.g_music_displayer.display(self.m_t.m_P.get_music(), 20)
else:
self.g_music_displayer.clear()
self.m_t.m_P.play_question()
self.g_repeat.set_sensitive(True)
self.g_repeat_arpeggio.set_sensitive(True)
self.g_play_answer.set_sensitive(True)
self.g_play_answer.grab_focus()
except Exception, e:
if isinstance(e, mpd.MpdException):
e.m_mpd_varname = 'music'
e.m_mpd_badcode = self.m_t.m_P.get_question().music.get_err_context(e, self.m_t.m_P)
if not self.standard_exception_handler(e, exception_cleanup):
raise
def hear_answer(self, widget):
try:
self.m_t.m_P.play_question(varname='answer')
except Exception, e:
if not self.standard_exception_handler(e):
raise
self.g_new.grab_focus()
def update_gui_after_lessonfile_change(self):
self.g_random_transpose.set_text(str(self.m_t.m_P.header.random_transpose))
if self.m_t.m_P.header.have_repeat_arpeggio_button:
self.g_repeat_arpeggio.show()
else:
self.g_repeat_arpeggio.hide()
if self.m_t.m_P.header.have_music_displayer:
self.g_music_displayer.show()
else:
self.g_music_displayer.hide()
self.g_repeat.set_sensitive(False)
self.g_repeat_arpeggio.set_sensitive(False)
self.g_play_answer.set_sensitive(False)
self.g_flashbar.clear()
self.g_new.set_sensitive(bool(self.m_t.m_P))
def on_start_practise(self):
self.update_gui_after_lessonfile_change()
self.g_new.grab_focus()
self.g_flashbar.delayed_flash(self.short_delay,
_("Click 'New' to begin."))
self.g_flashbar.require_size(
[q['question_text'] for q in self.m_t.m_P.m_questions]
+ [_("Click 'New' to begin.")])
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