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# GNU Solfege - eartraining for GNOME
# Copyright (C) 2000, 2001, 2002, 2003 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 2 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, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
import gtk, gnome.ui
import abstract, const, gu, mpd, soundcard
import random, os
import string
import cfg
RHYTHMS = ("c4", "c8 c8", "c16 c16 c16 c16", "c8 c16 c16",
"c16 c16 c8", "c16 c8 c16", "c8. c16", "c16 c8.",
"r4", "r8c8", "r8 c16 c16", "r16 c16 c8", "r16c8c16",
"r16 c16 c16 c16", "r8 r16 c16", "r16 c8.",
"c12 c12 c12", "r12 c12 c12",
"c12 r12 c12", "c12 c12 r12", "r12 r12 c12", "r12 c12 r12",
)
class Teacher(abstract.Teacher):
OK = 0
ERR_PICKY = 1
ERR_NO_ELEMS = 2
def __init__(self, exname, app):
abstract.Teacher.__init__(self, exname, app)
def new_question(self):
"""returns:
Teacher.ERR_PICKY : if the question is not yet solved and the
teacher is picky (== you have to solve the
question before a new is asked).
Teacher.OK : if a new question was created.
Teacher.ERR_NO_ELEMS : if no elements are set to be practised.
"""
if self.m_timeout_handle:
gtk.timeout_remove(self.m_timeout_handle)
self.m_timeout_handle = None
if self.get_bool('config/picky_on_new_question') \
and self.q_status in [const.QSTATUS_NEW, const.QSTATUS_WRONG]:
return Teacher.ERR_PICKY
self.q_status = const.QSTATUS_NO
norest_v = []
v = []
for x in range(len(RHYTHMS)):
if self.get_bool("rhythm_element_%i" % x):
if not (RHYTHMS[x][0] == "r"
and self.get_bool("not_start_with_rest")):
norest_v.append(x)
v.append(x)
if not v:
return Teacher.ERR_NO_ELEMS
self.m_question = [random.choice(norest_v)]
for x in range(1, self.get_int("num_beats")):
self.m_question.append(random.choice(v))
self.q_status = const.QSTATUS_NEW
return Teacher.OK
def get_music_string(self):
s = ""
for x in range(self.get_int("count_in")):
s = s + "d4 "
for k in self.m_question:
s = s + RHYTHMS[k] + " "
return r"\staff{%s}" % s
def play_question(self):
if self.q_status == const.QSTATUS_NO:
return
score = mpd.parser.parse_to_score_object(self.get_music_string())
track = score.get_midi_events_with_channel(9, cfg.get_int('config/preferred_instrument_velocity'))[0]
track.prepend_bpm(self.get_int("bpm"))
track.replace_note(mpd.notename_to_int("c"),
self.get_int("rhythm_perc"), 9)
track.replace_note(mpd.notename_to_int("d"),
self.get_int("countin_perc"), 9)
soundcard.synth.play_track(track)
def guess_answer(self, a):
assert self.q_status in [const.QSTATUS_NEW, const.QSTATUS_WRONG]
v = []
for idx in range(len(self.m_question)):
v.append(self.m_question[idx] == a[idx])
if filter(lambda a: a == 0, v) == []:
self.q_status = const.QSTATUS_SOLVED
self.maybe_auto_new_question()
self.m_app.play_happy_sound()
return 1
else:
self.q_status = const.QSTATUS_WRONG
self.m_app.play_sad_sound()
def create_png_image(fn):
"""
Create an image by loading a png file from graphics dir
"""
im = gtk.Image()
im.set_from_file(os.path.join('graphics', fn)+'.png')
im.show()
return im
def create_rhythm_image(rhythm):
"""
rhythm : a string like 'c8 c8' or 'c8 c16 c16'
The image returned is shown.
"""
fn = 'rhythm-%s' % ''.join(rhythm.split())
im = gtk.Image()
im.set_from_file(os.path.join('graphics', fn)+'.png')
#im.set_from_pixbuf(im.get_pixbuf().scale_simple(24, 24, gtk.gdk.INTERP_BILINEAR))
im.show()
return im
class RhythmViewer(gtk.Frame):
def __init__(self, parent):
gtk.Frame.__init__(self)
self.set_shadow_type(gtk.SHADOW_IN)
self.g_parent = parent
self.g_box = gtk.HBox()
self.g_box.show()
self.g_box.set_spacing(gnome.ui.PAD_SMALL)
self.g_box.set_border_width(gnome.ui.PAD)
self.add(self.g_box)
self.m_data = []
# the number of rhythm elements the viewer is supposed to show
self.m_num_beats = 0
self.g_face = None
self.__timeout = None
def set_num_beats(self, i):
self.m_num_beats = i
def clear(self):
for child in self.g_box.get_children():
child.destroy()
self.m_data = []
def create_holders(self):
"""
create those |__| that represents one beat
"""
if self.__timeout:
gtk.timeout_remove(self.__timeout)
self.clear()
for x in range(self.m_num_beats):
self.g_box.pack_start(create_png_image('holder'), gtk.FALSE)
self.m_data = []
def clear_wrong_part(self):
"""When the user have answered the question, this method is used
to clear all but the first correct elements."""
# this assert is always true because if there is no rhythm element,
# then there is a rhythm holder ( |__| )
assert self.m_num_beats == len(self.g_parent.m_t.m_question)
self.g_face.destroy()
self.g_face = None
for n in range(self.m_num_beats):
if self.m_data[n] != self.g_parent.m_t.m_question[n]:
break
for x in range(n, len(self.g_box.get_children())):
self.g_box.get_children()[n].destroy()
self.m_data = self.m_data[:n]
for x in range(n, self.m_num_beats):
self.g_box.pack_start(create_png_image('holder'), gtk.FALSE)
def add_elem(self, fn):
#UGH remove/rename/whatever?
im = gtk.Image()
im.set_from_file('graphics/%s' % fn)
im.show()
self.g_box.pack_start(im, gtk.FALSE)
def add_rhythm_element(self, i):
assert len(self.m_data) <= self.m_num_beats
if len(self.g_box.get_children()) >= self.m_num_beats:
self.g_box.get_children()[self.m_num_beats-1].destroy()
im = create_rhythm_image(RHYTHMS[i])
self.g_box.pack_start(im, gtk.FALSE)
self.g_box.reorder_child(im, len(self.m_data))
self.m_data.append(i)
def backspace(self):
if len(self.m_data) > 0:
if self.g_face:
self.g_face.destroy()
self.g_face = None
self.g_box.get_children()[len(self.m_data)-1].destroy()
self.g_box.pack_start(create_png_image('holder'), gtk.FALSE)
del self.m_data[-1]
def mark_wrong(self, idx):
box = gtk.VBox()
r = self.g_box.get_children()[idx]
self.g_box.get_children()[idx].reparent(box)
box.pack_start(create_png_image('rhythm-wrong'), gtk.FALSE, gtk.FALSE)
self.g_box.pack_start(box, gtk.FALSE)
self.g_box.reorder_child(box, idx)
box.show_all()
def len(self):
"return the number of rhythm elements currently viewed"
return len(self.m_data)
def sad_face(self):
self.g_face = gtk.EventBox()
self.g_face.connect('button_press_event', self.on_sadface_event)
self.g_face.show()
self.g_face.add(create_png_image('sadface-32x32'))
self.g_box.pack_start(self.g_face, gtk.FALSE)
def happy_face(self):
self.g_face = gtk.EventBox()
self.g_face.connect('button_press_event', self.on_happyface_event)
self.g_face.show()
self.g_face.add(create_png_image("happyface-32x32"))
self.g_box.pack_start(self.g_face, gtk.FALSE)
def on_happyface_event(self, obj, event):
if event.type == gtk.gdk.BUTTON_PRESS and event.button == 1:
self.g_parent.new_question()
def on_sadface_event(self, obj, event):
if event.type == gtk.gdk.BUTTON_PRESS and event.button == 1:
self.clear_wrong_part()
def flash(self, s):
self.clear()
l = gtk.Label(s)
l.set_name("Feedback")
l.set_alignment(0.0, 0.5)
l.show()
self.g_box.pack_start(l, gtk.TRUE, gtk.TRUE)
self.__timeout = gtk.timeout_add(const.NORMAL_WAIT, self.unflash)
def unflash(self, *v):
self.__timeout = None
self.clear()
class Gui(abstract.Gui):
def __init__(self, teacher, window):
abstract.Gui.__init__(self, teacher, window)
self.m_key_bindings = {'backspace_ak': self.on_backspace}
hbox = gu.bHBox(self.practise_box, gtk.FALSE)
for i in range(0, 8):
b = self.pngbutton(i)
if i == 0:
self.g_first_rhythm_button = b
hbox.pack_start(b, gtk.FALSE)
hbox = gu.bHBox(self.practise_box, gtk.FALSE)
for i in range(8, 16):
hbox.pack_start(self.pngbutton(i), gtk.FALSE)
hbox = gu.bHBox(self.practise_box, gtk.FALSE)
for i in range(16, 22):
hbox.pack_start(self.pngbutton(i), gtk.FALSE)
#-------
self.practise_box.pack_start(gtk.HBox(), gtk.FALSE,
padding=gnome.ui.PAD_SMALL)
self.g_rhythm_viewer = RhythmViewer(self)
self.g_rhythm_viewer.set_size_request(-1, 52)
self.g_rhythm_viewer.create_holders()
self.practise_box.pack_start(self.g_rhythm_viewer, gtk.FALSE)
# action area
self.g_new = gu.bButton(self.action_area, _("_New"), self.new_question)
self.g_repeat = gu.bButton(self.action_area, _("_Repeat"), self.repeat_question)
self.g_repeat.set_sensitive(gtk.FALSE)
self.g_show = gu.bButton(self.action_area, _("_Give up"), self.give_up)
self.g_show.set_sensitive(gtk.FALSE)
self.g_backspace = gu.bButton(self.action_area, _("_Backspace"),
self.on_backspace)
self.g_backspace.set_sensitive(gtk.FALSE)
self.practise_box.show_all()
##############
# config_box #
##############
frame = gtk.Frame(_("Rhythms to use in question"))
self.config_box.pack_start(frame, gtk.FALSE)
vbox = gtk.VBox()
vbox.set_border_width(gnome.ui.PAD_SMALL)
frame.add(vbox)
hbox = gu.bHBox(vbox, gtk.FALSE)
for i in range(0, 8):
hbox.pack_start(self.pngcheckbutton(i), gtk.FALSE)
hbox = gu.bHBox(vbox, gtk.FALSE)
for i in range(8, 16):
hbox.pack_start(self.pngcheckbutton(i), gtk.FALSE)
hbox = gu.bHBox(vbox, gtk.FALSE)
for i in range(16, 22):
hbox.pack_start(self.pngcheckbutton(i), gtk.FALSE)
#--------
self.config_box.pack_start(gtk.HBox(), gtk.FALSE,
padding=gnome.ui.PAD_SMALL)
table = gtk.Table(2, 4, gtk.FALSE)
self.config_box.pack_start(table, gtk.FALSE)
###
label = gtk.Label(_("Number of beats in question:"))
label.set_alignment(1.0, 0.5)
table.attach(label, 0, 1, 0, 1, xpadding=gnome.ui.PAD_SMALL,
xoptions=gtk.FILL)
table.attach(gu.nSpinButton(self.m_exname, "num_beats",
gtk.Adjustment(4, 1, 100, 1, 10)),
1, 2, 0, 1, xoptions=gtk.FILL)
menu = gu.PercussionNameOptionMenu(self.m_exname, "rhythm_perc", "Side Stick")
table.attach(menu, 2, 3, 0, 1, xoptions=gtk.FILL)
label = gtk.Label(_("Count in before question:"))
label.set_alignment(1.0, 0.5)
table.attach(label, 0, 1, 1, 2, xpadding=gnome.ui.PAD_SMALL,
xoptions=gtk.FILL)
table.attach(gu.nSpinButton(self.m_exname, "count_in",
gtk.Adjustment(2, 0, 10, 1, 10)),
1, 2, 1, 2, xoptions=gtk.FILL)
menu = gu.PercussionNameOptionMenu(self.m_exname, "countin_perc", "Claves")
table.attach(menu, 2, 3, 1, 2, xoptions=gtk.FILL)
#-----
self.config_box.pack_start(gtk.HBox(), gtk.FALSE,
padding=gnome.ui.PAD_SMALL)
#------
hbox = gu.bHBox(self.config_box, gtk.FALSE)
hbox.set_spacing(gnome.ui.PAD_SMALL)
hbox.pack_start(gu.nCheckButton(self.m_exname,
"not_start_with_rest",
_("Don't start the question with a rest")), gtk.FALSE)
sep = gtk.VSeparator()
hbox.pack_start(sep, gtk.FALSE)
hbox.pack_start(gtk.Label(_("Beats per minute:")), gtk.FALSE)
spin = gu.nSpinButton(self.m_exname, 'bpm',
gtk.Adjustment(60, 20, 240, 1, 10))
hbox.pack_start(spin, gtk.FALSE)
self._add_auto_new_question_gui(self.config_box)
self.config_box.show_all()
def pngbutton(self, i):
"used by the constructor"
btn = gtk.Button()
btn.add(create_rhythm_image(RHYTHMS[i]))
btn.show()
btn.connect('clicked', self.guess_element, i)
return btn
def pngcheckbutton(self, i):
btn = gu.nCheckButton(self.m_exname, "rhythm_element_%i" % i, default_value=1)
btn.add(create_rhythm_image(RHYTHMS[i]))
btn.show()
return btn
def on_backspace(self, widget=None):
if self.m_t.q_status == const.QSTATUS_SOLVED:
return
self.g_rhythm_viewer.backspace()
if not self.g_rhythm_viewer.m_data:
self.g_backspace.set_sensitive(gtk.FALSE)
def guess_element(self, sender, i):
if self.m_t.q_status == const.QSTATUS_NO:
self.g_rhythm_viewer.flash(_("Click 'New' to begin."))
return
if self.m_t.q_status == const.QSTATUS_SOLVED:
return
if self.g_rhythm_viewer.len() == len(self.m_t.m_question):
self.g_rhythm_viewer.clear_wrong_part()
self.g_rhythm_viewer.add_rhythm_element(i)
if self.g_rhythm_viewer.len() == len(self.m_t.m_question):
if self.m_t.guess_answer(self.g_rhythm_viewer.m_data):
self.g_rhythm_viewer.happy_face()
self.g_new.set_sensitive(gtk.TRUE)
self.g_new.grab_focus()
self.g_backspace.set_sensitive(gtk.FALSE)
self.g_show.set_sensitive(gtk.FALSE)
else:
v = []
for idx in range(len(self.m_t.m_question)):
v.append(self.m_t.m_question[idx] == self.g_rhythm_viewer.m_data[idx])
for x in range(len(v)):
if not v[x]:
self.g_rhythm_viewer.mark_wrong(x)
self.g_rhythm_viewer.sad_face()
else:
self.g_backspace.set_sensitive(gtk.TRUE)
def new_question(self, widget=None):
g = self.m_t.new_question()
if g == Teacher.OK:
self.g_first_rhythm_button.grab_focus()
self.g_rhythm_viewer.set_num_beats(self.get_int('num_beats'))
self.g_rhythm_viewer.create_holders()
self.g_show.set_sensitive(gtk.TRUE)
self.g_repeat.set_sensitive(gtk.TRUE)
self.g_new.set_sensitive(
not self.get_bool('config/picky_on_new_question'))
self.m_t.play_question()
elif g == Teacher.ERR_PICKY:
self.g_rhythm_viewer.flash(_("You have to solve this question first."))
else:
assert g == Teacher.ERR_NO_ELEMS
self.g_repeat.set_sensitive(gtk.FALSE)
self.g_rhythm_viewer.flash(_("You have to configure this exercise properly"))
def repeat_question(self, *w):
self.m_t.play_question()
self.g_first_rhythm_button.grab_focus()
def on_start_practise(self):
self.g_rhythm_viewer.flash(_("Click 'New' to begin."))
self.g_new.grab_focus()
def on_end_practise(self):
self.m_t.end_practise()
self.g_new.set_sensitive(gtk.TRUE)
self.g_repeat.set_sensitive(gtk.FALSE)
self.g_show.set_sensitive(gtk.FALSE)
self.g_rhythm_viewer.create_holders()
def give_up(self, widget=None):
if self.m_t.q_status == const.QSTATUS_NO:
return
self.g_rhythm_viewer.clear()
for i in self.m_t.m_question:
self.g_rhythm_viewer.add_rhythm_element(i)
self.m_t.q_status = const.QSTATUS_SOLVED
self.g_new.set_sensitive(gtk.TRUE)
self.g_new.grab_focus()
self.g_show.set_sensitive(gtk.FALSE)
self.g_backspace.set_sensitive(gtk.FALSE)
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