class MainWindow(ExerciseMixin, SongMixin):
"""Voicetrainer application."""
def __init__(self, root):
self.data_path = Path().home().joinpath('.voicetrainer')
self.data_path.mkdir(exist_ok=True)
self.include_path = self.data_path.joinpath('include')
self.include_path.mkdir(exist_ok=True)
self.root = root
# compiler state
self.compiler_count = 0
set_compiler_cb(self.update_compiler)
self.messages = []
self.messages_read = 0
self.msg_window = None
set_compile_err_cb(self.new_message)
set_play_err_cb(self.new_message)
# midi state
self.port = None
self.port_match = 'FLUID'
asyncio.ensure_future(self.find_port())
# gui elements storage
self.create_widgets()
ExerciseMixin.__init__(self)
SongMixin.__init__(self)
self.restore_state()
async def find_port(self):
"""Find qsynth port."""
try:
port_finder = PortFinder(self.port_match)
async for port in port_finder:
if port is not None:
self.port = port
set_pmidi_port(port)
else:
await asyncio.sleep(5)
port_finder.match = self.port_match
self.port_label.set_text('pmidi port: {}'.format(self.port))
except Exception as err:
ErrorDialog(self.root,
data="Could not find midi port\n{}".format(str(err)))
raise
async def select_port(self, pmidi=True):
"""Change port matching."""
# FIXME: stay away from private mixin properties
# pylint: disable=access-member-before-definition,invalid-name
# pylint: disable=attribute-defined-outside-init
selection_dialog = PortSelection(
self.root,
data=await list_ports(pmidi=pmidi),
current_port=str(self.port_match)
if pmidi else str(self._SongMixin__jpmidi_port))
if pmidi:
self.port_match = await selection_dialog.await_data()
if self.port is not None:
# not currently searching for port, start
self.port = None
self.port_label.set_text('pmidi port: None')
await self.find_port()
else:
self._SongMixin__jpmidi_port = await selection_dialog.await_data()
def create_widgets(self):
"""Put some stuff up to look at."""
self.window = Frame(self.root)
self.window.rowconfigure(0, weight=1)
self.window.columnconfigure(2, weight=1)
self.window.grid(column=0, row=0, sticky=tk.N + tk.S + tk.E + tk.W)
self.top = self.window.winfo_toplevel()
self.top.rowconfigure(0, weight=1)
self.top.columnconfigure(0, weight=1)
self.top.title("VoiceTrainer")
self.top.protocol("WM_DELETE_WINDOW",
lambda: asyncio.ensure_future(self.quit()))
# self.top menu
self.menubar = tk.Menu(self.top)
self.top['menu'] = self.menubar
self.file_menu = tk.Menu(self.menubar)
self.menubar.add_cascade(label='File', menu=self.file_menu)
self.file_menu.add_command(
label='Select port',
command=lambda: asyncio.ensure_future(self.select_port()))
self.file_menu.add_separator()
self.file_menu.add_command(
label='Export midi',
command=lambda: asyncio.ensure_future(self.export(FileType.midi)))
self.file_menu.add_command(
label='Export png',
command=lambda: asyncio.ensure_future(self.export(FileType.png)))
self.file_menu.add_command(
label='Export pdf',
command=lambda: asyncio.ensure_future(self.export(FileType.pdf)))
self.file_menu.add_command(
label='Export lilypond',
command=lambda: asyncio.ensure_future(self.export(FileType.lily)))
self.file_menu.add_separator()
self.file_menu.add_command(label='Save state', command=self.save_state)
self.file_menu.add_command(
label='Clear cache',
command=lambda: asyncio.ensure_future(self.clear_cache()))
self.file_menu.add_command(
label='Quit', command=lambda: asyncio.ensure_future(self.quit()))
self.notebook = Notebook(self.window)
self.notebook.grid(column=0,
row=0,
columnspan=3,
sticky=tk.N + tk.S + tk.E + tk.W)
self.notebook.rowconfigure(0, weight=1)
self.notebook.columnconfigure(0, weight=1)
self.separators = []
self.statusbar = Frame(self.window)
self.statusbar.grid(row=1, column=0, sticky=tk.N + tk.W)
self.compiler_label = Label(self.statusbar, text="Compiler:")
self.compiler_label.grid(row=0, column=0, sticky=tk.N + tk.E)
self.progress = ttk.Progressbar(self.statusbar.raw,
mode='indeterminate',
orient=tk.HORIZONTAL)
self.progress.grid(row=0, column=1, sticky=tk.N + tk.W)
sep = ttk.Separator(self.statusbar.raw, orient=tk.VERTICAL)
sep.grid(row=0, column=2)
self.separators.append(sep)
self.port_label = Label(self.statusbar, text='pmidi port: None')
self.port_label.grid(row=0, column=3, sticky=tk.N + tk.W)
sep = ttk.Separator(self.statusbar.raw, orient=tk.VERTICAL)
sep.grid(row=0, column=4)
self.separators.append(sep)
self.msg_button = Button(self.statusbar.raw,
text='messages',
command=self.display_messages)
self.msg_button.grid(row=0, column=5, sticky=tk.N + tk.W)
self.resize = ttk.Sizegrip(self.window.raw)
self.resize.grid(row=1, column=2, sticky=tk.S + tk.E)
async def quit(self):
"""Confirm exit."""
if self.compiler_count > 0:
# ask conformation before quit
confirm_exit = OkCancelDialog(
self.root, ("Uncompleted background task\n"
"An exercise is still being compiled in the "
"background. Do you still want to exit? The "
"task will be aborted."))
if not await confirm_exit.await_data():
return
if is_playing():
await stop()
self.close()
def close(self):
"""Exit main application."""
self.save_state()
self.progress.stop()
self.top.destroy()
self.root.close()
def save_state(self):
"""Save settings to json file."""
data = {}
data['port_match'] = self.port_match
data['exercises'] = ExerciseMixin.save_state(self)
data['songs'] = SongMixin.save_state(self)
self.data_path.joinpath('state.json').write_text(json.dumps(data))
def restore_state(self, _=None):
"""Restore saved settings."""
state_file = self.data_path.joinpath('state.json')
if not state_file.is_file():
return
data = json.loads(state_file.read_text())
if 'port_match' in data:
self.port_match = data['port_match']
if 'exercises' in data:
ExerciseMixin.restore_state(self, data['exercises'])
if 'songs' in data:
SongMixin.restore_state(self, data['songs'])
def show_messages(self):
"""Show if there unread messages."""
if len(self.messages) > self.messages_read:
self.msg_button.set_text('!!!Messages!!!')
if self.msg_window is not None:
self.msg_window.update_data(self.messages)
def new_message(self, msg):
"""There's a new message to report."""
self.messages.append(msg)
self.show_messages()
def display_messages(self, _=None):
"""Display all messages."""
if self.msg_window is None:
self.msg_window = Messages(self.root,
data=self.messages,
on_close=self.on_close_msg_window)
else:
self.msg_window.to_front()
self.messages_read = len(self.messages)
self.msg_button.set_text('Messages')
def on_close_msg_window(self, _):
"""Messages window was closed."""
self.msg_window = None
def update_compiler(self, delta_compilers: int):
"""Set compiler progress bar status."""
self.compiler_count += delta_compilers
if self.compiler_count > 0:
self.progress.start()
else:
self.progress.stop()
async def clear_cache(self):
"""Remove all compiled files."""
# confirm
confirm_remove = OkCancelDialog(
self.root, "This will remove all compiled files. Are you sure?")
if not await confirm_remove.await_data():
return
await ExerciseMixin.clear_cache(self)
await SongMixin.clear_cache(self)
async def export(self, file_type: FileType):
"""Export compiled data."""
tab_name = self.notebook.get()[1]
if tab_name == 'Songs':
interface = SongMixin.export(self)
elif tab_name == 'Exercises':
interface = ExerciseMixin.export(self)
else:
return
# get save_path
file_name = interface.get_filename(file_type)
save_dialog = SaveFileDialog(self.root,
dir_or_file=Path('~'),
default=file_name.name)
save_path = await save_dialog.await_data()
if save_path is None:
return
# compile and save
if file_type is FileType.lily:
# we don't compile lily
save_path.write_text(interface.get_final_lily_code(file_type))
InfoDialog(self.root, data="Export complete")
return
await get_file(interface, file_type)
save_path.write_bytes(file_name.read_bytes())
InfoDialog(self.root, data="Export complete")
class ExerciseTab:
"""Tab containing everything for one exersise."""
def __init__(self, notebook: Notebook, exercise: Exercise):
# some control variables
self.stopping = False
self.play_next = False
self.repeat_once = False
self.name = exercise.name
self.config = config = exercise.config
self._data_path = exercise.data_path
self._include_path = exercise.include_path
self.tab = Frame(notebook)
self.tab.rowconfigure(1, weight=1)
self.tab.columnconfigure(3, weight=1)
notebook.append({'name': self.name, 'widget': self.tab})
# bpm selector
self.bpm_label = Label(self.tab, text="bpm:")
self.bpm_label.grid(column=2, row=0, sticky=tk.N + tk.W)
self.bpm = Scale(self.tab,
from_=80,
to=160,
tickinterval=10,
showvalue=0,
length=300,
resolution=10,
default=140,
orient=tk.HORIZONTAL)
self.bpm.grid(column=3, row=0, sticky=tk.W + tk.N)
if 'tempo' not in config:
self.bpm.disable()
# pitch selector
self.pitch_range = Listbox(self.tab, width=3, values=PITCH_LIST)
self.pitch_range.grid(row=1, column=1, sticky=tk.N + tk.S + tk.W)
self.pitch_range.set({pitch: True for pitch in PITCH_LIST[7:14]})
# controls
self.control_frame = Frame(self.tab)
self.control_frame.grid(column=2,
row=2,
columnspan=2,
sticky=tk.W + tk.N)
self._create_controls(self.control_frame, config)
# sheet display
self._image_cache = {}
self.sheet = tk.Canvas(self.tab.raw, bd=0, highlightthickness=0)
self.sheet.bind("<Configure>",
lambda e: asyncio.ensure_future(self._resize_sheet(e)))
self.sheet.grid(column=2, row=1, columnspan=2, sticky=tk.NSEW)
self.sheet.bind("<Button-1>", lambda e: self._set_repeat_once())
asyncio.ensure_future(self._update_sheet())
def _create_controls(self, parent, config):
self.velocity_label = Label(parent, text="relative velocity:")
self.velocity_label.grid(column=0, row=0, sticky=tk.N + tk.E)
self.velocity = Spinbox(parent,
width=3,
from_=-50,
to=50,
default=0,
increment=1)
self.velocity.grid(column=1, row=0, sticky=tk.W + tk.N)
self.sound = OptionMenu(
parent,
default='Mi',
option_list=SOUND_LIST,
command=lambda _: asyncio.ensure_future(self._update_sheet()))
self.sound.grid(column=2, row=0, sticky=tk.W + tk.N)
if 'sound' not in config:
self.sound.disable()
self.key = OptionMenu(
parent,
option_list=PITCH_LIST,
default='c',
command=lambda _: asyncio.ensure_future(self._on_pitch_change()))
self.key.grid(column=3, row=0, sticky=tk.W + tk.N)
if 'key' in config:
self.key.set(config['key'])
else:
self.key.disable()
self.random = Checkbutton(parent, text="random")
self.random.grid(column=4, row=0, sticky=tk.W + tk.N)
self.autonext = Checkbutton(parent, text="autonext")
self.autonext.grid(column=5, row=0, sticky=tk.W + tk.N)
self.b_repeat = Button(parent,
text="Repeat once",
command=self._set_repeat_once)
self.b_repeat.grid(column=6, row=0, sticky=tk.W + tk.N)
self.b_next_ = Button(
parent,
text="Next",
command=lambda: asyncio.ensure_future(self._next()))
self.b_next_.grid(column=7, row=0, sticky=tk.W + tk.N)
self.b_play = Button(
parent,
text="Play",
command=lambda: asyncio.ensure_future(self.play()))
self.b_play.grid(column=8, row=0, sticky=tk.W + tk.N)
def save_state(self):
"""Return exercise state."""
data = {}
data['pitch_range'] = self.pitch_range.get()
data['bpm'] = self.bpm.get()
data['velocity'] = self.velocity.get()
data['sound'] = self.sound.get()
data['autonext'] = self.autonext.get()
data['random'] = self.random.get()
return data
def restore_state(self, data):
"""Restore saved settings."""
if 'pitch_range' in data:
self.pitch_range.set(data['pitch_range'])
if 'bpm' in data:
self.bpm.set(data['bpm'])
if 'velocity' in data:
self.velocity.set(data['velocity'])
if 'sound' in data:
self.sound.set(data['sound'])
if 'autonext' in data:
self.autonext.set(data['autonext'])
if 'random' in data:
self.random.set(data['random'])
def _get_interface(self):
"""Return exercise interface."""
return Exercise(self._data_path,
self._include_path,
name=self.name,
pitch=self.key.get(),
bpm=self.bpm.get(),
sound=self.sound.get(),
velocity=self.velocity.get())
async def clear_cache(self):
"""Remove all compiled files."""
# remove files
for file_ in chain(self._data_path.glob("{}-*.midi".format(self.name)),
self._data_path.glob("{}-*.png".format(self.name)),
self._data_path.glob("{}-*.pdf".format(self.name))):
file_.unlink()
self._image_cache = {}
await self._update_sheet()
async def _update_sheet(self):
"""Display relevant sheet."""
# pylint: disable=invalid-name
# type declaration
Size = namedtuple('Size', ['width', 'height'])
size = Size(self.sheet.winfo_width(), self.sheet.winfo_height())
await self._resize_sheet(size)
async def _resize_sheet(self, event):
"""Resize sheets to screen size."""
self.sheet.delete("left")
left = self._get_interface()
# make sure pages are compiled
await get_file(left)
left_path = await get_single_sheet(self._image_cache, left,
event.width, event.height)
self.sheet.create_image(0,
0,
image=self._image_cache[left_path]['image'],
anchor=tk.NW,
tags="left")
async def _on_pitch_change(self):
"""New pitch was picked by user or app."""
asyncio.ensure_future(self._update_sheet())
if is_playing():
self.play_next = True
await stop()
else:
await self.play()
def _set_repeat_once(self, _=None):
"""Repeat this midi once, then continue."""
self.repeat_once = True
async def _next_sound(self):
if 'sound' in self.config:
current_sound = self.sound.get()
sound_position = SOUND_LIST.index(current_sound)
if sound_position < len(SOUND_LIST) - 1:
self.sound.set(SOUND_LIST[sound_position + 1])
else:
self.sound.set(SOUND_LIST[0])
asyncio.ensure_future(self._update_sheet())
async def _next(self):
"""Pick next exercise configuration."""
if 'key' not in self.config:
await self._next_sound()
return
current_pitch = new_pitch = self.key.get()
pitch_position = PITCH_LIST.index(current_pitch)
pitch_range = self.pitch_range.get()
pitch_selection = [
pitch for pitch in pitch_range if pitch_range[pitch]
]
if not pitch_selection:
return
if self.random.get():
while new_pitch == current_pitch:
new_pitch = choice(pitch_selection)
else:
while pitch_selection:
pitch_position += 1
if pitch_position >= len(PITCH_LIST):
pitch_position = 0
await self._next_sound()
if PITCH_LIST[pitch_position] in pitch_selection:
new_pitch = PITCH_LIST[pitch_position]
break
self.key.set(new_pitch)
await self._on_pitch_change()
async def play(self):
"""Play midi file."""
midi = await get_file(self._get_interface(), FileType.midi)
if is_playing():
self.stopping = True
playing = await play_or_stop(midi, self._on_midi_stop)
if playing:
self.b_play.set_text("Stop")
else:
self.b_play.set_text("Play")
async def _on_midi_stop(self):
"""Handle end of midi playback."""
if self.stopping:
self.play_next = False
self.stopping = False
self.b_play.set_text("Play")
return
if self.play_next or self.autonext.get() == 1:
self.play_next = False
if not self.repeat_once:
await self._next()
else:
self.repeat_once = False
await self.play()
return
self.b_play.set_text("Play")
def export(self):
"""Export compiled data."""
return self._get_interface()
class SongTab:
"""Tab containing everything for one song."""
def __init__(self, notebook: Notebook, song: Song):
self.name = song.name
config = song.config
self._data_path = song.data_path
self._include_path = song.include_path
self.tab = Frame(notebook)
self.tab.rowconfigure(0, weight=1)
self.tab.columnconfigure(1, weight=1)
notebook.append({'name': self.name, 'widget': self.tab})
self.page = 1
self._scroll_time = datetime.now()
# controls
self.controls = Frame(self.tab)
self.controls.grid(column=0, row=0, sticky=tk.W + tk.N)
self._create_controls(self.controls, config)
# sheet display
self._image_cache = {}
self.sheet = tk.Canvas(self.tab.raw, bd=0, highlightthickness=0)
self.sheet.bind("<Configure>",
lambda e: asyncio.ensure_future(self._resize_sheet(e)))
self.sheet.grid(column=1, row=0, sticky=tk.N + tk.W + tk.S + tk.E)
# sheet mouse events
self.sheet.bind("<Button-1>", lambda e: self._change_page())
self.sheet.bind(
"<Button-4>",
lambda e: self._change_page(scroll=True, increment=False))
self.sheet.bind("<Button-5>", lambda e: self._change_page(scroll=True))
asyncio.ensure_future(self._update_sheet())
def _create_controls(self, parent, config):
row_count = 0
self.measure_label = Label(parent, text="measure")
self.measure_label.grid(column=0,
row=row_count,
sticky=tk.S + tk.E + tk.W)
self.bpm_label = Label(parent, text="bpm")
self.bpm_label.grid(column=1, row=row_count, sticky=tk.S + tk.E + tk.W)
row_count += 1
if 'measures' in config:
max_measure = int(config['measures'])
no_measures = False
else:
max_measure = 1
no_measures = True
self.measure = Scale(parent,
from_=1,
to=max_measure,
tickinterval=10,
showvalue=True,
length=300,
resolution=1,
orient=tk.VERTICAL,
label=None,
default=1)
self.measure.grid(column=0, row=row_count, sticky=tk.W + tk.N + tk.E)
if no_measures:
self.measure.disable()
self.bpm = Scale(parent,
from_=40,
to=240,
tickinterval=20,
showvalue=True,
length=300,
resolution=1,
orient=tk.VERTICAL,
label=None,
default=140)
self.bpm.grid(column=1, row=row_count, sticky=tk.W + tk.N + tk.E)
if 'tempo' in config:
self.bpm.set(config['tempo'])
else:
self.bpm.disable()
row_count += 1
self.key_label = Label(parent, text="key:")
self.key_label.grid(column=0, row=row_count, sticky=tk.N + tk.E)
self.key = OptionMenu(
parent,
option_list=PITCH_LIST,
default='c',
command=lambda _: asyncio.ensure_future(self._on_pitch_change()))
self.key.grid(column=1, row=row_count, sticky=tk.W + tk.N)
if 'key' in config:
self.key.set(config['key'])
else:
self.key.disable()
row_count += 1
self.velocity_label = Label(parent, text="rel. velocity:")
self.velocity_label.grid(column=0, row=row_count, sticky=tk.N + tk.E)
self.velocity = Spinbox(parent,
width=3,
from_=-50,
to=50,
increment=1,
default=0)
self.velocity.grid(column=1, row=row_count, sticky=tk.W + tk.N)
row_count += 1
self.instruments_frame = LabelFrame(parent, text="Instruments")
self.instruments_frame.grid(column=0,
row=row_count,
columnspan=2,
sticky=tk.NSEW)
self._create_instruments_frame(self.instruments_frame, config)
row_count += 1
self.b_recompile = Button(
parent,
text='Recompile',
command=lambda: asyncio.ensure_future(self.clear_cache()))
self.b_recompile.grid(column=0,
row=row_count,
columnspan=2,
sticky=tk.NSEW)
row_count += 1
self.b_reset = Button(parent,
text='Reset to song default',
command=self._reset_song)
self.b_reset.grid(column=0,
row=row_count,
columnspan=2,
sticky=tk.NSEW)
row_count += 1
if 'pages' in config:
num_pages = int(config['pages'])
no_pages = False
else:
num_pages = 1
no_pages = True
self.b_first_page = Button(parent,
text='First page',
command=lambda: self._change_page(page=1))
self.b_first_page.grid(column=0,
row=row_count,
columnspan=2,
sticky=tk.NSEW)
row_count += 1
self.b_next_page = Button(parent,
text='Next page',
command=self._change_page)
self.b_next_page.grid(column=0,
row=row_count,
columnspan=2,
sticky=tk.NSEW)
row_count += 1
self.b_prev_page = Button(
parent,
text='Previous page',
command=lambda: self._change_page(increment=False))
self.b_prev_page.grid(column=0,
row=row_count,
columnspan=2,
sticky=tk.NSEW)
row_count += 1
self.b_last_page = Button(
parent,
text='Last page',
command=lambda last=num_pages: self._change_page(page=last))
self.b_last_page.grid(column=0,
row=row_count,
columnspan=2,
sticky=tk.NSEW)
row_count += 1
if no_pages:
self.b_first_page.disable()
self.b_next_page.disable()
self.b_prev_page.disable()
self.b_last_page.disable()
self.b_play = Button(
parent,
text='Play',
command=lambda: asyncio.ensure_future(self.play()))
self.b_play.grid(column=0, row=row_count, columnspan=2, sticky=tk.NSEW)
row_count += 1
def _create_instruments_frame(self, parent, config):
self.instruments = {}
self.instrument_labels = {}
row_count = 0
instrument_title = Label(parent=parent, text="Instrument")
instrument_title.grid(column=0, row=row_count, sticky=tk.W)
self.instrument_labels['instrument'] = instrument_title
sheet_title = Label(parent=parent, text="Sheet")
sheet_title.grid(column=1, row=row_count, sticky=tk.W)
self.instrument_labels['sheet'] = sheet_title
midi_title = Label(parent=parent, text="Midi")
midi_title.grid(column=2, row=row_count, sticky=tk.W)
self.instrument_labels['midi'] = midi_title
velocity_title = Label(parent=parent, text="Velocity")
velocity_title.grid(column=3, row=row_count, sticky=tk.W)
self.instrument_labels['velocity'] = velocity_title
row_count += 1
for instrument in config['instruments']:
name = Label(parent=parent, text=instrument)
name.grid(column=0, row=row_count, sticky=tk.W)
sheet = Checkbutton(
parent,
text="",
default=True,
command=lambda: asyncio.ensure_future(self._update_sheet()))
sheet.grid(column=1, row=row_count, sticky=tk.N + tk.W + tk.E)
midi = Checkbutton(parent, text="", default=True)
midi.grid(column=2, row=row_count, sticky=tk.N + tk.W + tk.E)
velocity = Spinbox(parent,
width=3,
from_=-50,
to=50,
increment=1,
default=0)
velocity.grid(column=3, row=row_count, sticky=tk.W + tk.N)
row_count += 1
self.instruments[instrument] = {
'name': name,
'sheet': sheet,
'midi': midi,
'velocity': velocity
}
def _reset_song(self):
"""Set song pitch and bpm to song default."""
config = self._get_interface().config
if 'key' in config:
self.key.set(config['key'])
if 'tempo' in config:
self.bpm.set(config['tempo'])
asyncio.ensure_future(self._update_sheet())
def save_state(self):
"""Return exercise state."""
data = {}
data['key'] = self.key.get()
data['bpm'] = self.bpm.get()
data['velocity'] = self.velocity.get()
data['instruments'] = {}
for instrument in self.instruments:
data['instruments'][instrument] = {
'sheet': self.instruments[instrument]['sheet'].get(),
'midi': self.instruments[instrument]['midi'].get(),
'velocity': self.instruments[instrument]['velocity'].get()
}
return data
def restore_state(self, data):
"""Restore saved settings."""
if 'key' in data:
self.key.set(data['key'])
if 'bpm' in data:
self.bpm.set(data['bpm'])
if 'velocity' in data:
self.velocity.set(data['velocity'])
if 'instruments' not in data:
return
for instrument in data['instruments']:
if instrument not in self.instruments:
continue
if not isinstance(data['instruments'][instrument], dict):
continue
if 'sheet' in data['instruments'][instrument]:
self.instruments[instrument]['sheet'].set(
data['instruments'][instrument]['sheet'])
if 'midi' in data['instruments'][instrument]:
self.instruments[instrument]['midi'].set(
data['instruments'][instrument]['midi'])
if 'velocity' in data['instruments'][instrument]:
self.instruments[instrument]['velocity'].set(
data['instruments'][instrument]['velocity'])
def _get_interface(self):
"""Return song interface."""
midi_instruments = {
instrument: self.instruments[instrument]['midi'].get() \
for instrument in self.instruments}
sheet_instruments = {
instrument: self.instruments[instrument]['sheet'].get() \
for instrument in self.instruments}
instrument_velocities = {
instrument: self.instruments[instrument]['velocity'].get() \
for instrument in self.instruments}
return Song(self._data_path,
self._include_path,
name=self.name,
pitch=self.key.get(),
bpm=self.bpm.get(),
start_measure=self.measure.get(),
velocity=self.velocity.get(),
sheet_instruments=sheet_instruments,
instrument_velocities=instrument_velocities,
midi_instruments=midi_instruments)
async def clear_cache(self):
"""Remove all compiled files."""
# remove files
for file_ in chain(self._data_path.glob("{}-*.midi".format(self.name)),
self._data_path.glob("{}-*.png".format(self.name)),
self._data_path.glob("{}-*.pdf".format(self.name))):
file_.unlink()
self._image_cache = {}
await self._update_sheet()
def _change_page(self, increment=True, page=None, scroll=False):
"""Change page."""
if scroll:
delta_t = datetime.now() - self._scroll_time
self._scroll_time = datetime.now()
if delta_t.total_seconds() < 0.5:
return
if page is not None:
self.page = int(page)
elif increment:
self.page += 1
else:
if self.page > 1:
self.page -= 1
asyncio.ensure_future(self._update_sheet())
async def _update_sheet(self):
"""Display relevant sheet."""
# pylint: disable=invalid-name
# type declaration
Size = namedtuple('Size', ['width', 'height'])
size = Size(self.sheet.winfo_width(), self.sheet.winfo_height())
await self._resize_sheet(size)
async def _resize_sheet(self, event):
"""Resize sheets to screen size."""
self.sheet.delete("left")
self.sheet.delete("right")
left = self._get_interface()
# make sure pages are compiled
await get_file(left)
left.page = self.page
if not left.get_filename(FileType.png).is_file():
# page does not exists, roll around to 1
self.page = 1
left.page = 1
left_path = await get_single_sheet(self._image_cache, left,
(event.width - 1) / 2, event.height)
self.sheet.create_image(0,
0,
image=self._image_cache[left_path]['image'],
anchor=tk.NW,
tags="left")
# right page
right = self._get_interface()
right.page = self.page + 1
if right.get_filename(FileType.png).is_file():
right_path = await get_single_sheet(self._image_cache, right,
(event.width - 1) / 2,
event.height)
self.sheet.create_image(
self._image_cache[left_path]['image'].width() + 1,
0,
image=self._image_cache[right_path]['image'],
anchor=tk.NW,
tags="right")
async def _on_pitch_change(self):
"""New pitch was picked by user or app."""
asyncio.ensure_future(self._update_sheet())
await get_file(self._get_interface(), FileType.midi)
async def play(self):
"""Play midi file."""
midi = await get_file(self._get_interface(), FileType.midi)
# if self.__midi_executable.get() == 'pmidi':
playing = await play_or_stop(midi, self._on_midi_stop)
# else:
# # FIXME: fetch midi_executable and await_jack somehow
# # have them trickle down from MainWindow with singular
# # play/stop button
# playing = await play_or_stop(
# midi,
# on_midi_end=self._on_midi_stop,
# pmidi=False)
if playing:
self.b_play.set_text("Stop")
else:
self.b_play.set_text("Play")
async def _on_midi_stop(self):
"""Handle end of midi playback."""
self.b_play.set_text("Play")
def export(self):
"""Export compiled data."""
return self._get_interface()