class BookAuthor(MenuScreen):
""" Authors screen """
def __init__(self, util, listeners, ch, f, go_author, parser, base_url,
voice_assistant, d):
""" Initializer
:param util: utility object
:param listeners: screen listeners
:param ch: selected character
:param f: selected filter
:param go_authors: callback
:param parser: authors parser
:param base_url: url
:param d: dictionary with menu button flags
"""
self.util = util
self.factory = Factory(util)
self.base_url = base_url
self.config = util.config
self.parser = parser
self.current_author_char = ch
self.current_author_filter = f
self.go_author = go_author
self.author_cache = {}
self.title = self.config[LABELS][KEY_AUTHORS]
MenuScreen.__init__(self, util, listeners, MENU_ROWS, MENU_COLUMNS,
voice_assistant, d, self.turn_page)
m = self.create_book_author_menu_button
self.navigator = BookNavigator(util, self.layout.BOTTOM, listeners,
d[4])
self.back_button = self.navigator.get_button_by_name(KEY_BACK)
self.left_button = self.navigator.get_button_by_name(KEY_PAGE_DOWN)
self.right_button = self.navigator.get_button_by_name(KEY_PAGE_UP)
self.add_navigator(self.navigator)
font_size = int(((self.menu_layout.h / MENU_ROWS) / 100) *
self.config[FONT_HEIGHT_PERCENT])
self.authors_menu = MultiPageMenu(util,
self.next_page,
self.previous_page,
self.set_title,
self.reset_title,
self.go_to_page,
m,
MENU_ROWS,
MENU_COLUMNS,
None, (0, 0, 0),
self.menu_layout,
font_size=font_size)
self.set_menu(self.authors_menu)
def create_book_author_menu_button(self, s, constr, action, scale,
font_size):
""" Create Author Menu button
:param s: button state
:param constr: bounding box
:param action: button event listener
:param show_img: True - show image, False - don't show image
:param show_label: True - show label, False - don't show label
:return: genre menu button
"""
s.bounding_box = constr
s.img_x = None
s.img_y = None
s.auto_update = True
s.show_bgr = True
s.show_img = False
s.show_label = True
s.text_color_normal = self.config[COLORS][COLOR_BRIGHT]
s.text_color_selected = self.config[COLORS][COLOR_CONTRAST]
s.text_color_disabled = self.config[COLORS][COLOR_MEDIUM]
s.text_color_current = s.text_color_normal
s.fixed_height = font_size
button = Button(self.util, s)
button.add_release_listener(action)
return button
def create_book_author_items(self, authors):
""" Create dictionary with author books
:param authors: list of author books
:return: dictionary with author books
"""
items = {}
for i, g in enumerate(authors):
state = State()
state.name = g[AUTHOR_NAME]
state.url = g[AUTHOR_URL] + "/"
state.author_books = int(g[AUTHOR_BOOKS])
try:
state.l_name = state.name + " (" + g[AUTHOR_BOOKS] + ")"
except:
state.l_name = state.name
state.bgr = self.config[COLORS][COLOR_DARK]
state.img_x = None
state.img_y = None
state.auto_update = True
state.show_bgr = True
state.show_img = False
state.show_label = True
state.comparator_item = state.name
state.index = i
items[state.name] = state
return items
def set_current(self, ch=None, f=None):
""" Apply selected character and filter
:param ch: selected character
:param f: selected filter
"""
if not ch and not f:
return
self.set_loading(self.config[LABELS][KEY_AUTHORS])
self.total_pages = 0
self.current_page = 1
self.current_author_char = ch
self.current_author_filter = f
try:
self.author_cache[ch]
except:
self.get_authors()
self.turn_page()
self.reset_loading()
def get_authors(self):
""" Get authors from parser """
self.parser.author_parser.current_author_char = self.current_author_char
self.parser.author_parser.url = self.base_url
authors = self.parser.get_authors()
if authors:
self.author_cache[self.current_author_char] = authors
def turn_page(self):
""" Turn authors page """
self.authors_menu.set_items({}, 0, self.go_author)
filtered_authors = []
for a in self.author_cache[self.current_author_char]:
if self.current_author_filter:
if a[AUTHOR_NAME].startswith(self.current_author_filter):
filtered_authors.append(a)
else:
filtered_authors.append(a)
start = (self.current_page - 1) * PAGE_SIZE
end = self.current_page * PAGE_SIZE
page = filtered_authors[start:end]
self.author_dict = self.create_book_author_items(page)
self.authors_menu.set_items(self.author_dict, 0, self.go_author, False)
self.authors_menu.align_content(ALIGN_LEFT)
self.total_pages = math.ceil(len(filtered_authors) / PAGE_SIZE)
left = str(self.current_page - 1)
if self.total_pages == 0:
right = "0"
else:
right = str(self.total_pages - self.current_page)
self.left_button.change_label(left)
self.right_button.change_label(right)
self.set_title(self.current_page)
if self.authors_menu.get_selected_item() != None:
self.navigator.unselect()
else:
if not self.navigator.is_selected():
self.back_button.set_selected(True)
self.back_button.clean_draw_update()
self.authors_menu.clean_draw_update()
self.link_borders()
def handle_event(self, event):
""" Handle screen event
:param event: the event to handle
"""
self.handle_event_common(event)
def add_screen_observers(self, update_observer, redraw_observer):
""" Add screen observers
:param update_observer: observer for updating the screen
:param redraw_observer: observer to redraw the whole screen
"""
self.navigator.add_observers(update_observer, redraw_observer)
self.authors_menu.add_menu_loaded_listener(redraw_observer)
self.authors_menu.add_menu_observers(update_observer,
redraw_observer,
release=False)
class WiFiScreen(MenuScreen):
""" Wi-Fi Screen """
def __init__(self, util, listeners, voice_assistant):
""" Initializer
:param util: utility object
:param listeners: listeners
:param voice_assistant: voice assistant
"""
self.util = util
self.config = util.config
self.listeners = listeners
self.factory = Factory(util)
self.go_home = listeners[KEY_HOME]
self.go_keyboard = listeners[KEY_KEYBOARD_KEY]
self.keyboard_callback = listeners[KEY_CALLBACK]
self.wifi_selection_listeners = []
self.wifi_util = WiFiUtil(util)
self.bounding_box = util.screen_rect
layout = BorderLayout(self.bounding_box)
layout.set_percent_constraints(PERCENT_TOP_HEIGHT,
PERCENT_BOTTOM_HEIGHT, 0, 0)
d = [MENU_ROWS_WIFI, MENU_COLUMNS_WIFI]
MenuScreen.__init__(self,
util,
listeners,
MENU_ROWS_WIFI,
MENU_COLUMNS_WIFI,
voice_assistant,
d,
self.turn_page,
page_in_title=False,
show_loading=False)
self.title = self.config[LABELS]["select.wifi"]
self.set_title(1)
listeners[KEY_REFRESH] = self.set_current
listeners[KEY_SORT] = self.sort_abc
self.navigator = WiFiNavigator(self.util, self.layout.BOTTOM,
listeners, PAGE_SIZE_WIFI + 1)
self.add_component(self.navigator)
self.network_button = self.navigator.get_button_by_name(KEY_NETWORK)
m = self.factory.create_wifi_menu_button
font_height = 32
font_size = int(
((self.menu_layout.h / MENU_ROWS_WIFI) / 100) * font_height)
self.wifi_menu = MultiPageMenu(util,
self.next_page,
self.previous_page,
self.set_title,
self.reset_title,
self.go_to_page,
m,
MENU_ROWS_WIFI,
MENU_COLUMNS_WIFI,
None, (0, 0, 0),
self.menu_layout,
align=ALIGN_CENTER,
font_size=font_size)
self.set_menu(self.wifi_menu)
self.original_networks = None
self.networks = None
self.sort_direction = False
self.current_network = None
self.link_borders()
def set_current(self, state):
""" Set current state
:param state: button state
"""
self.set_loading(self.title)
info = self.wifi_util.get_wifi_networks()
self.original_networks = info["networks"]
if not self.original_networks:
self.reset_loading()
if not self.navigator.is_selected():
self.network_button.set_selected(True)
self.clean_draw_update()
return
self.networks = self.sort_networks(SORT_ALPHABETICALLY)
self.current_network = info["profile"]
self.total_pages = math.ceil(len(self.networks) / PAGE_SIZE_WIFI)
self.reset_loading()
self.current_page = self.wifi_util.get_page_num(
self.current_network, self.networks)
self.turn_page()
def sort_networks(self, order):
""" Sort networks
:param order: sort order
:return: sorted networks
"""
sorted_networks = []
if order == SORT_ALPHABETICALLY:
sorted_networks = sorted(self.original_networks,
key=lambda i: i["name"],
reverse=self.sort_direction)
else:
sorted_networks = sorted(self.original_networks,
key=lambda i: i["strength"],
reverse=self.sort_direction)
states = {}
h = self.layout.CENTER.h / MENU_ROWS_WIFI
bb = pygame.Rect(0, 0, h, h)
for i, n in enumerate(sorted_networks):
s = self.wifi_util.get_network_info(i, n["name"], n["strength"],
bb)
states[s.name] = s
return states
def sort_abc(self, state):
""" Sort in alphabetical order
:param state: button state
"""
self.sort(SORT_ALPHABETICALLY)
def select_network(self, state=None):
""" Select network from menu
:param state: button state
"""
self.current_network = state.name
self.notify_wifi_selection_listeners(self.current_network)
state.title = self.config[LABELS]["enter.password"]
state.callback = self.keyboard_callback
self.go_keyboard(state)
def sort(self, order):
""" Sort by order
:param order: sort order
:return:
"""
self.sort_direction = not self.sort_direction
self.current_page = 1
self.networks = self.sort_networks(order)
self.turn_page()
def turn_page(self):
""" Turn page """
p = self.wifi_util.get_network_page(self.current_page, self.networks)
self.wifi_menu.set_items(p, 0, self.select_network, False)
keys = list(p.keys())
if len(keys) != 0 and self.navigator and self.total_pages > 1:
self.navigator.get_button_by_name(KEY_PAGE_DOWN).change_label(
str(self.current_page - 1))
self.navigator.get_button_by_name(KEY_PAGE_UP).change_label(
str(self.total_pages - self.current_page))
self.set_title(self.current_page)
self.wifi_menu.clean_draw_update()
if hasattr(self, "update_observer"):
self.wifi_menu.add_menu_observers(self.update_observer,
self.redraw_observer)
self.wifi_menu.unselect()
for b in self.wifi_menu.buttons.values():
if self.current_network == b.state.name:
self.wifi_menu.select_by_index(b.state.index)
break
if self.wifi_menu.get_selected_item() != None:
self.navigator.unselect()
else:
if not self.navigator.is_selected():
self.network_button.set_selected(True)
self.link_borders()
def add_wifi_selection_listener(self, listener):
""" Add listener
:param listener: event listener
"""
if listener not in self.wifi_selection_listeners:
self.wifi_selection_listeners.append(listener)
def notify_wifi_selection_listeners(self, selected_wifi):
""" Notify all listeners
:param selected_wifi:
"""
for listener in self.wifi_selection_listeners:
listener(selected_wifi)
def add_screen_observers(self, update_observer, redraw_observer):
""" Add screen observers
:param update_observer: observer for updating the screen
:param redraw_observer: observer to redraw the whole screen
"""
MenuScreen.add_screen_observers(self, update_observer, redraw_observer)
self.update_observer = update_observer
self.redraw_observer = redraw_observer
self.add_loading_listener(redraw_observer)
self.navigator.add_observers(update_observer, redraw_observer)
class RadioGroupScreen(MenuScreen):
""" Radio group screen """
def __init__(self, util, listeners, voice_assistant):
self.util = util
self.config = util.config
self.groups_list = self.util.get_stations_folders()
self.factory = Factory(util)
d = [MENU_ROWS, MENU_COLUMNS]
MenuScreen.__init__(self,
util,
listeners,
MENU_ROWS,
MENU_COLUMNS,
voice_assistant,
d,
self.turn_page,
page_in_title=False)
self.total_pages = math.ceil(len(self.groups_list) / PAGE_SIZE)
self.title = util.get_stations_top_folder()
m = self.create_genre_menu_button
label_area = (
(self.menu_layout.h / MENU_ROWS) / 100) * (100 - ICON_AREA)
font_size = int((label_area / 100) * FONT_HEIGHT)
self.navigator = RadioGroupNavigator(self.util, self.layout.BOTTOM,
listeners, self.total_pages)
self.add_navigator(self.navigator)
self.player_button = self.navigator.get_button_by_name(KEY_PLAYER)
if self.total_pages > 1:
self.left_button = self.navigator.get_button_by_name(KEY_PAGE_DOWN)
self.right_button = self.navigator.get_button_by_name(KEY_PAGE_UP)
self.groups_menu = MultiPageMenu(util,
self.next_page,
self.previous_page,
self.set_title,
self.reset_title,
self.go_to_page,
m,
MENU_ROWS,
MENU_COLUMNS,
None, (0, 0, 0, 0),
self.menu_layout,
align=ALIGN_CENTER,
font_size=font_size)
self.groups_menu.add_listener(listeners[KEY_GENRE])
self.set_menu(self.groups_menu)
current_name = self.get_current_group_name()
if current_name == None:
self.current_page = 1
else:
try:
current_group_index = self.groups_list.index(current_name)
self.current_page = int(current_group_index / PAGE_SIZE) + 1
except:
current_group_index = 0
self.turn_page()
def create_genre_menu_button(self, s, constr, action, scale, font_size):
""" Create Genre Menu button
:param s: button state
:param constr: scaling constraints
:param action: button event listener
:param scale: True - scale images, False - don't scale images
:return: genre menu button
"""
s.padding = BUTTON_PADDING
s.image_area_percent = ICON_AREA
s.fixed_height = font_size
s.v_align = CENTER
return self.factory.create_menu_button(s,
constr,
action,
scale,
font_size=font_size)
def get_current_group_name(self):
group = self.util.get_current_genre()
if group != None:
return group.name
else:
return None
def get_page(self):
start = (self.current_page - 1) * PAGE_SIZE
end = self.current_page * PAGE_SIZE
tmp_layout = self.groups_menu.get_layout(self.groups_list)
button_rect = tmp_layout.constraints[0]
image_box = self.factory.get_icon_bounding_box(button_rect,
ICON_LOCATION,
ICON_AREA, ICON_SIZE,
BUTTON_PADDING)
groups_dict = self.util.load_stations_folders(image_box)
return self.util.get_radio_group_slice(groups_dict, start, end)
def turn_page(self):
""" Turn book genre page """
group_page = self.get_page()
self.groups_menu.set_items(group_page, 0, self.change_group, False)
current_name = self.get_current_group_name()
self.current_genre = None
try:
self.current_genre = group_page[current_name]
except:
pass
self.groups_menu.item_selected(self.current_genre)
if self.navigator and self.total_pages > 1:
self.left_button.change_label(str(self.current_page - 1))
self.right_button.change_label(
str(self.total_pages - self.current_page))
for b in self.groups_menu.buttons.values():
b.parent_screen = self
self.groups_menu.clean_draw_update()
menu_selected = self.groups_menu.get_selected_item() != None
if menu_selected:
self.navigator.unselect()
self.link_borders()
navigator_selected = self.navigator.is_selected()
if (len(group_page) == 0 or
(not menu_selected and not navigator_selected)) and self.navigator:
self.navigator.unselect()
self.player_button.set_selected(True)
self.player_button.clean_draw_update()
self.set_title(self.current_page)
def change_group(self, state):
""" Change group event listener
:param state: button state
"""
if not self.visible:
return
self.current_genre = state
key = STATIONS + "." + self.config[CURRENT][LANGUAGE]
self.config[key][CURRENT_STATIONS] = state.genre
state.source = GENRE
self.groups_menu.notify_listeners(state)
def handle_event(self, event):
""" Handle screen event
:param event: the event to handle
"""
self.handle_event_common(event)
def add_screen_observers(self, update_observer, redraw_observer):
""" Add screen observers
:param update_observer: observer for updating the screen
:param redraw_observer: observer to redraw the whole screen
"""
self.navigator.add_observers(update_observer, redraw_observer)
self.groups_menu.add_menu_observers(update_observer,
redraw_observer,
release=False)
class BluetoothScreen(MenuScreen):
""" Bluetooth Screen """
def __init__(self, util, listeners, voice_assistant):
""" Initializer
:param util: utility object
:param listeners: listeners
:param voice_assistant: voice assistant
"""
self.util = util
self.config = util.config
self.listeners = listeners
self.factory = Factory(util)
self.go_home = listeners[KEY_HOME]
self.go_network = listeners[KEY_NETWORK]
self.go_player = listeners[KEY_PLAYER]
self.wifi_selection_listeners = []
self.bluetooth_util = self.util.get_bluetooth_util()
self.bounding_box = util.screen_rect
layout = BorderLayout(self.bounding_box)
layout.set_percent_constraints(PERCENT_TOP_HEIGHT,
PERCENT_BOTTOM_HEIGHT, 0, 0)
d = [MENU_ROWS_BLUETOOTH, MENU_COLUMNS_BLUETOOTH]
MenuScreen.__init__(self,
util,
listeners,
MENU_ROWS_BLUETOOTH,
MENU_COLUMNS_BLUETOOTH,
voice_assistant,
d,
self.turn_page,
page_in_title=False,
show_loading=False)
self.title = self.config[LABELS]["select.bluetooth.device"]
self.set_title(1)
listeners[KEY_HOME] = self.before_home
listeners[KEY_NETWORK] = self.before_network
listeners[KEY_PLAYER] = self.before_player
listeners[KEY_REFRESH] = self.set_current
self.navigator = BluetoothNavigator(self.util, self.layout.BOTTOM,
listeners, PAGE_SIZE_BLUETOOTH + 1)
self.add_navigator(self.navigator)
self.network_button = self.navigator.get_button_by_name(KEY_NETWORK)
self.left_button = self.navigator.get_button_by_name(KEY_PAGE_DOWN)
self.right_button = self.navigator.get_button_by_name(KEY_PAGE_UP)
m = self.factory.create_wifi_menu_button
font_height = 32
font_size = int(
((self.menu_layout.h / MENU_ROWS_BLUETOOTH) / 100) * font_height)
self.bluetooth_menu = MultiPageMenu(util,
self.next_page,
self.previous_page,
self.set_title,
self.reset_title,
self.go_to_page,
m,
MENU_ROWS_BLUETOOTH,
MENU_COLUMNS_BLUETOOTH,
None, (0, 0, 0),
self.menu_layout,
align=ALIGN_LEFT,
font_size=font_size)
self.set_menu(self.bluetooth_menu)
self.devices = None
self.networks = None
self.sort_direction = False
self.current_device = None
def set_current(self, state):
""" Set current state
:param state: button state
"""
self.set_loading(self.title)
self.bluetooth_util.start_scan()
self.devices = self.bluetooth_util.get_available_devices()
if not self.devices:
self.reset_loading()
self.left_button.change_label("0")
self.right_button.change_label("0")
if not self.navigator.is_selected():
self.network_button.set_selected(True)
self.link_borders()
self.clean_draw_update()
return
d = self.bluetooth_util.get_connected_device()
if d:
self.current_device = d
else:
self.current_device = None
self.total_pages = math.ceil(len(self.devices) / PAGE_SIZE_BLUETOOTH)
self.reset_loading()
self.current_page = self.bluetooth_util.get_page_num(
self.current_device, self.devices)
if not self.current_page:
self.current_page = 1
self.turn_page()
def select_network(self, state=None):
""" Select network from menu
:param state: button state
"""
if hasattr(state,
"mac_address") and self.bluetooth_util.is_device_connected(
state.mac_address):
self.before_network(state)
return
state.source = "bluetooth"
self.notify_wifi_selection_listeners(state.name)
self.before_network(state)
def turn_page(self):
""" Turn page """
p = self.bluetooth_util.get_page(self.current_page, self.devices)
try:
self.bluetooth_menu.set_items(p, 0, self.select_network, False)
except Exception as e:
logging.debug(e)
if len(self.devices) != 0 and self.navigator and self.total_pages > 1:
self.left_button.change_label(str(self.current_page - 1))
self.right_button.change_label(
str(self.total_pages - self.current_page))
self.set_title(self.current_page)
self.bluetooth_menu.clean_draw_update()
if hasattr(self, "update_observer"):
self.bluetooth_menu.add_menu_observers(self.update_observer,
self.redraw_observer)
self.bluetooth_menu.unselect()
for b in self.bluetooth_menu.buttons.values():
if self.current_device and self.current_device[
"name"] == b.state.name:
self.bluetooth_menu.select_by_index(b.state.index)
break
if self.bluetooth_menu.get_selected_item() != None:
self.navigator.unselect()
else:
if not self.navigator.is_selected():
self.network_button.set_selected(True)
self.link_borders()
def before_home(self, state):
""" Stop bluetooth scanning and go to home screen
:param state: button state
"""
self.bluetooth_util.stop_scan()
self.go_home(state)
def before_network(self, state):
""" Stop bluetooth scanning and go to network screen
:param state: button state
"""
self.bluetooth_util.stop_scan()
self.go_network(state)
def before_player(self, state):
""" Stop bluetooth scanning and go to player screen
:param state: button state
"""
self.bluetooth_util.stop_scan()
self.go_player(state)
def add_bluetooth_selection_listener(self, listener):
""" Add listener
:param listener: event listener
"""
if listener not in self.wifi_selection_listeners:
self.wifi_selection_listeners.append(listener)
def notify_wifi_selection_listeners(self, selected_wifi):
""" Notify all listeners
:param selected_wifi:
"""
for listener in self.wifi_selection_listeners:
listener(selected_wifi)
def add_screen_observers(self, update_observer, redraw_observer):
""" Add screen observers
:param update_observer: observer for updating the screen
:param redraw_observer: observer to redraw the whole screen
"""
MenuScreen.add_screen_observers(self, update_observer, redraw_observer)
self.update_observer = update_observer
self.redraw_observer = redraw_observer
self.add_loading_listener(redraw_observer)
self.navigator.add_observers(update_observer, redraw_observer)
def handle_event(self, event):
""" Handle screen event
:param event: the event to handle
"""
self.handle_event_common(event)
class BookGenre(MenuScreen):
""" Book genre screen """
def __init__(self, util, listeners, go_book_by_genre, genres, base_url,
voice_assistant, d):
self.util = util
self.go_book_by_genre = go_book_by_genre
self.config = util.config
self.genres_list = genres
self.base_url = base_url
self.factory = Factory(util)
MenuScreen.__init__(self, util, listeners, MENU_ROWS, MENU_COLUMNS,
voice_assistant, d, self.turn_page)
self.total_pages = math.ceil(len(genres) / PAGE_SIZE)
self.title = self.config[LABELS][KEY_CHOOSE_GENRE]
self.navigator = BookNavigator(util, self.layout.BOTTOM, listeners,
d[4])
self.back_button = self.navigator.get_button_by_name(KEY_BACK)
self.left_button = self.navigator.get_button_by_name(KEY_PAGE_DOWN)
self.right_button = self.navigator.get_button_by_name(KEY_PAGE_UP)
self.add_navigator(self.navigator)
m = self.create_book_genre_menu_button
font_size = int(((self.menu_layout.h / MENU_ROWS) / 100) *
self.config[FONT_HEIGHT_PERCENT])
self.genre_menu = MultiPageMenu(util,
self.next_page,
self.previous_page,
self.set_title,
self.reset_title,
self.go_to_page,
m,
MENU_ROWS,
MENU_COLUMNS,
None, (0, 0, 0, 0),
self.menu_layout,
font_size=font_size)
self.set_menu(self.genre_menu)
self.turn_page()
def create_book_genre_menu_button(self,
s,
constr,
action,
show_img=True,
show_label=True):
""" Create Genre Menu button
:param s: button state
:param constr: bounding box
:param action: button event listener
:param show_img: True - show image, False - don't show image
:param show_label: True - show label, False - don't show label
:return: genre menu button
"""
s.bounding_box = constr
s.img_x = None
s.img_y = None
s.auto_update = True
s.show_bgr = True
s.show_img = show_img
s.show_label = show_label
s.text_color_normal = self.config[COLORS][COLOR_BRIGHT]
s.text_color_selected = self.config[COLORS][COLOR_CONTRAST]
s.text_color_disabled = self.config[COLORS][COLOR_MEDIUM]
s.text_color_current = s.text_color_normal
s.label_text_height = 35
s.bgr = self.config[BACKGROUND][MENU_BGR_COLOR]
button = Button(self.util, s)
button.add_release_listener(action)
return button
def turn_page(self):
""" Turn book genre page """
start = (self.current_page - 1) * PAGE_SIZE
end = self.current_page * PAGE_SIZE
page = self.genres_list[start:end]
self.genres_dict = self.factory.create_book_genre_items(
page, self.base_url)
self.genre_menu.set_items(self.genres_dict, 0, self.go_book_by_genre,
False)
self.genre_menu.align_content(ALIGN_LEFT)
for b in self.genre_menu.buttons.values():
b.parent_screen = self
self.genre_menu.clean_draw_update()
self.left_button.change_label(str(self.current_page - 1))
self.right_button.change_label(
str(self.total_pages - self.current_page))
self.set_title(self.current_page)
if self.genre_menu.get_selected_item() != None:
self.navigator.unselect()
else:
if not self.navigator.is_selected():
self.back_button.set_selected(True)
self.back_button.clean_draw_update()
self.link_borders()
def handle_event(self, event):
""" Handle screen event
:param event: the event to handle
"""
self.handle_event_common(event)
def add_screen_observers(self, update_observer, redraw_observer):
""" Add screen observers
:param update_observer: observer for updating the screen
:param redraw_observer: observer to redraw the whole screen
"""
self.navigator.add_observers(update_observer, redraw_observer)
self.genre_menu.add_menu_observers(update_observer,
redraw_observer,
release=False)