def startup(self):
# Window class
# Main window of the application with title and size
self.main_window = toga.MainWindow(title=self.name, size=(300, 150))
style = Pack(padding_top=24)
substyle = Pack(padding_right=24, flex=1)
# Add the content on the main window
self.main_window.content = toga.Box(
children=[
toga.Label('Section 1'),
toga.Divider(style=style),
toga.Label('Section 2', style=style),
toga.Divider(style=style),
toga.Label('Section 3', style=style),
toga.Box(
children=[
toga.DetailedList(['List 1'], style=substyle),
toga.Divider(direction=toga.Divider.VERTICAL, style=substyle),
toga.DetailedList(['List 2'], style=substyle),
],
style=Pack(direction=ROW, padding=24, flex=1),
),
],
style=Pack(direction=COLUMN, padding=24)
)
# Show the main window
self.main_window.show()
def startup(self):
self.main_window = toga.MainWindow(title=self.name)
self.webview = toga.WebView(style=Pack(flex=1))
self.url_input = toga.TextInput(initial='https://github.com/',
style=Pack(flex=1))
box = toga.Box(children=[
toga.Box(children=[
self.url_input,
toga.Button('Go',
on_press=self.load_page,
style=Pack(width=50, padding_left=5)),
],
style=Pack(
direction=ROW,
alignment=CENTER,
padding=5,
)),
self.webview,
],
style=Pack(direction=COLUMN))
self.main_window.content = box
self.webview.url = self.url_input.value
# Show the main window
self.main_window.show()
def test_setting_content_valid_input(self):
new_content = [
toga.Box(style=TestStyle(), factory=toga_dummy.factory),
toga.Box(style=TestStyle(), factory=toga_dummy.factory)
]
self.split.content = new_content
self.assertEqual(self.split.content, new_content)
def _installed_section(self) -> toga.Widget:
desc = "Choose directories for installed games lookup. The lookup is based on child directory names."
description = toga.Label(desc,
style=Pack(font_size=self.TEXT_SIZE_BIG,
padding_bottom=12))
if IS_MAC:
desc_os = "If nothing selected, '/Applications' will be used."
if IS_WINDOWS:
desc_os = "e.g. 'C:/Humble' to detect 'C:/Humble/Torchlight/torch.exe' ('Torchlight' matches game name)."
description_os = toga.Label(desc_os,
style=Pack(font_size=self.TEXT_SIZE_BIG,
padding_bottom=12))
self._paths_table = OneColumnTable(
'Path', data=[str(p) for p in self._cfg.installed.search_dirs])
select_btn = toga.Button('Add path', on_press=self._add_path)
select_btn.style.flex = 1
select_btn.style.padding_bottom = 4
self._remove_btn = toga.Button('Remove path',
on_press=self._remove_paths,
enabled=self._paths_table.not_empty)
self._remove_btn.style.flex = 1
config_panel = toga.Box(children=[select_btn, self._remove_btn])
config_panel.style.direction = 'row'
config_panel.style.padding_top = 15
paths_container = toga.Box(children=[
description, description_os, self._paths_table, config_panel
])
paths_container.style.direction = 'column'
return paths_container
def startup(self):
# Create a main window with a name matching the app
self.main_window = toga.MainWindow(self.name)
self.input = toga.TextInput(style=Pack(flex=1))
self.avatar_type = toga.Selection(items=sorted(AVATAR_TYPES.keys()),
style=Pack(padding_left=10),
on_select=self.generate)
self.button = toga.Button('Go!',
style=Pack(padding_left=10),
on_press=self.generate)
input_box = toga.Box(
children=[self.input, self.avatar_type, self.button],
style=Pack(direction=ROW, padding=10, alignment=CENTER))
self.avatar = toga.ImageView()
# Create a main content box
main_box = toga.Box(children=[input_box, self.avatar],
style=Pack(direction=COLUMN))
# Add the content on the main window
self.main_window.content = main_box
# Show the main window
self.main_window.show()
def startup(self):
main_box = toga.Box(style=Pack(direction=COLUMN))
name_label = toga.Label(
'Your name pls: ',
style=Pack(padding=(0, 5))
)
self.name_input = toga.TextInput(style=Pack(flex=1))
name_box = toga.Box(style=Pack(direction=ROW, padding=5))
name_box.add(name_label)
name_box.add(self.name_input)
button = toga.Button(
'Say Hello!',
on_press=self.say_hello,
style=Pack(padding=5)
)
main_box.add(name_box)
main_box.add(button)
self.main_window = toga.MainWindow(title=self.formal_name)
self.main_window.content = main_box
self.main_window.show()
def startup(self):
main_box = toga.Box(style=Pack(direction=COLUMN))
name_label = toga.Label("Your name: ", style=Pack(padding=(0, 5)))
self.name_input = toga.TextInput(style=Pack(flex=1))
self.display_score = toga.TextInput(style=Pack(flex=1), readonly=True)
name_box = toga.Box(style=Pack(direction=ROW, padding=5))
name_box.add(name_label)
name_box.add(self.name_input)
button_1 = toga.Button("Team A",
on_press=self.score_for_team_a,
style=Pack(padding=5))
button_2 = toga.Button("Team B",
on_press=self.score_for_team_b,
style=Pack(padding=5))
button_3 = toga.Button("Create Match",
on_press=self.create_match,
style=Pack(padding=5))
main_box.add(name_box)
main_box.add(button_1)
main_box.add(button_2)
main_box.add(button_3)
main_box.add(self.display_score)
self.main_window = toga.MainWindow(title=self.formal_name)
self.main_window.content = main_box
self.main_window.show()
def build(app):
def on_load(widget):
print('Finished loading!')
print(widget.dom)
def on_key(event, flag):
print('Key down: ', event, ' Flag: ', flag)
webview = toga.WebView(on_key_down=on_key,
on_webview_load=on_load,
style=CSS(flex=1))
url_input = toga.TextInput(initial='https://github.com/',
style=CSS(flex=1, margin=5))
def load_page(widget):
print('loading: ', url_input.value)
webview.url = url_input.value
def print_dom(widget):
print(webview.dom)
box = toga.Box(children=[
toga.Box(children=[
url_input,
toga.Button('Go', on_press=load_page, style=CSS(width=50)),
],
style=CSS(flex_direction='row', padding_top=25)), webview,
toga.Box(children=[toga.Button('Print DOM', on_press=print_dom)])
],
style=CSS(flex_direction='column'))
webview.url = url_input.value
# Show the main window
return box
def startup(self):
self.word_input = toga.PasswordInput(style=Pack(flex=1, padding=5))
self.new_game = toga.Button('New Game',
on_press=self.new_game_handler,
style=Pack(width=100, padding=5))
self.give_up = toga.Button('Give Up',
on_press=self.give_up_handler,
style=Pack(width=100, padding=5))
self.start = toga.Button('Start',
on_press=self.start_game_handler,
style=Pack(width=50, padding=5))
self.buttons_box = toga.Box(children=[
self.new_game, self.give_up, self.word_input, self.start
])
self.buttons_box.remove(self.word_input)
print(self.buttons_box.children)
self.tree_image = toga.ImageView(toga.Image(IMAGES[0]))
self.tree_image.style.update(height=400)
self.tree_image.style.update(width=400)
start_box = toga.Box(children=[self.tree_image, self.buttons_box])
# start_box.add(tree_image)
# start_box.add(buttons_box)
start_box.style.update(direction=COLUMN)
start_box.style.update(alignment=CENTER)
self.main_window = toga.MainWindow(title=self.name)
self.main_window.content = start_box
self.main_window.show()
def startup(self):
# Window class
# Main window of the application with title and size
self.main_window = toga.MainWindow(title=self.name, size=(300, 150))
style = Pack(padding_top=24)
substyle = Pack(padding_right=12, padding_left=12, flex=1)
# Add the content on the main window
self.main_window.content = toga.Box(children=[
toga.Label('Section 1'),
toga.Divider(style=style),
toga.Label('Section 2', style=style),
toga.Divider(style=style),
toga.Label('Section 3', style=style),
toga.Box(
children=[
toga.TextInput(placeholder="First textbox"),
toga.Divider(direction=toga.Divider.VERTICAL,
style=substyle),
toga.TextInput(placeholder="Second textbox"),
],
style=Pack(direction=ROW, padding=24, flex=1),
),
],
style=Pack(direction=COLUMN,
padding=24))
# Show the main window
self.main_window.show()
def startup(self):
box = toga.Box()
box.style.direction = COLUMN
box.style.padding = 10
self.scroller = toga.ScrollContainer(horizontal=self.hscrolling,
vertical=self.vscrolling)
switch_box = toga.Box(style=Pack(direction=ROW))
switch_box.add(
toga.Switch('vertical scrolling',
is_on=self.vscrolling,
on_toggle=self.handle_vscrolling))
switch_box.add(
toga.Switch('horizontal scrolling',
is_on=self.hscrolling,
on_toggle=self.handle_hscrolling))
box.add(switch_box)
for x in range(100):
label_text = 'Label {}'.format(x)
box.add(Item(label_text))
self.scroller.content = box
self.main_window = toga.MainWindow(self.name, size=(400, 700))
self.main_window.content = self.scroller
self.main_window.show()
def __init__(self):
"""Initialize box."""
logo_path = Path(__file__).parent.parent / "resources" / "eddington_gui.png"
logo = toga.Image(str(logo_path))
super(HeaderBox, self).__init__(
alignment=TOP,
children=[
toga.Label(
text=f"Version: {__version__}",
style=Pack(
font_size=SMALL_FONT_SIZE, font_family=HEADER_FONT_FAMILY
),
),
toga.Box(style=Pack(flex=1)),
toga.ImageView(
image=logo, style=Pack(height=LOGO_SIZE, width=LOGO_SIZE)
),
toga.Box(style=Pack(flex=1)),
toga.Label(
text=f"Author: {__author__}",
style=Pack(
font_size=SMALL_FONT_SIZE, font_family=HEADER_FONT_FAMILY
),
),
],
)
def build(app):
def calculate(widget):
try:
result_form.value = int(input_form.value) * int(input_form.value)
except ValueError:
result_form.value = 'ValueError'
box = toga.Box()
input_box = toga.Box()
box.add(input_box)
input_form = toga.TextInput()
input_form.style.update(flex=1)
input_box.add(input_form)
input_box.style.update(direction=ROW)
result_box = toga.Box()
box.add(result_box)
result_form = toga.TextInput(readonly=True)
result_box.add(result_form)
result_box.style.update(direction=ROW)
result_form.style.update(flex=1)
button = toga.Button('confirm', on_press=calculate)
button.style.update(flex=1)
box.add(button)
box.style.update(direction=COLUMN)
return box
def startup(self):
"""
Construct and show the Toga application.
Usually, you would add your application to a main content box.
We then create a main window (with a name matching the app), and
show the main window.
"""
main_box = toga.Box()
for line in UI_data:
box_tmp = toga.Box(style=Pack(flex=1))
for el in line:
if el['type'] == 'inputtext':
element_tmp = toga.TextInput(placeholder='enter expression here', readonly=True, style=Pack(flex=1, font_size=18))
self.input_text = element_tmp
elif el['type'] == 'button':
element_tmp = toga.Button(el['name'], on_press=self.button_pressed, style=Pack(flex=1, padding=2, font_size=18))
box_tmp.add(element_tmp)
main_box.add(box_tmp)
main_box.style.update(direction=COLUMN)
self.main_window = toga.MainWindow(title=self.formal_name)
self.main_window.content = main_box
self.main_window.show()
def startup(self):
self.terms = []
main_box = toga.Box(style=Pack(direction=COLUMN))
term_label = toga.Label('Enter term(s): ', style=Pack(padding=(0, 5)))
self.term_input = toga.TextInput(style=Pack(flex=1))
term_box = toga.Box(style=Pack(direction=ROW, padding=5))
term_box.add(term_label)
term_box.add(self.term_input)
term_button = toga.Button('Add term',
on_press=self.term_list,
style=Pack(padding=5))
fetch_button = toga.Button('Fetch transcripts',
on_press=self.hydra_fetch,
style=Pack(padding=5))
main_box.add(term_box)
main_box.add(term_button)
main_box.add(fetch_button)
self.main_window = toga.MainWindow(title=self.formal_name)
self.main_window.content = main_box
self.main_window.show()
def startup(self):
self.db = {}
self.root = None
main_box = toga.Box(style=Pack(direction=COLUMN))
self.pdf_tree = toga.Table(headings=['File'],
data=[],
on_double_click=self.rm_row,
style=Pack(padding=5, width=250,
height=600))
self.select_btn = toga.Button('browse',
on_press=self.select_cb,
style=Pack(padding=5, width=120))
self.merge_btn = toga.Button('merge',
on_press=self.merge_cb,
style=Pack(padding=5, width=120))
info_panel = toga.Box(style=Pack(direction=ROW))
info_panel.add(self.pdf_tree)
button_panel = toga.Box(style=Pack(direction=ROW))
button_panel.add(self.select_btn)
button_panel.add(self.merge_btn)
main_box.add(info_panel)
main_box.add(button_panel)
self.main_window = toga.MainWindow(title=self.formal_name,
size=(250, 600))
self.main_window.content = main_box
self.main_window.show()
def startup(self):
"""
Construct and show the Toga application.
Usually, you would add your application to a main content box.
We then create a main window (with a name matching the app), and
show the main window.
"""
main_box = toga.Box(style=Pack(direction=COLUMN))
name_label = toga.Label('Your name: ', style=Pack(padding=(0, 5)))
self.name_input = toga.TextInput(style=Pack(flex=1))
name_box = toga.Box(style=Pack(direction=ROW, padding=5))
name_box.add(name_label)
name_box.add(self.name_input)
button = toga.Button('Say Hello!',
on_press=self.say_hello,
style=Pack(padding=5))
main_box.add(name_box)
main_box.add(button)
self.main_window = toga.MainWindow(title=self.formal_name)
self.main_window.content = main_box
self.main_window.show()
def startup(self):
self.main_window = toga.MainWindow('main', title=self.title, size=self.size)
self.top_container = toga.Box(children=[self.logo, self.price, self.currency],
style=Pack(
direction=COLUMN, alignment=CENTER
))
self.bottom_container = toga.SplitContainer()
right = toga.Box(
children=[self.bid, self.bid_val, self.low, self.low_val, self.volume_24, self.volume_24_val],
style=Pack(
direction=COLUMN,
padding_left=40, padding_top=20
)
)
left = toga.Box(
children=[self.ask, self.ask_val, self.high, self.high_val, self.volume, self.volume_val],
style=Pack(
direction=COLUMN,
padding_left=40, padding_top=20
)
)
self.bottom_container.content = [right, left]
self.split = toga.SplitContainer(direction=toga.SplitContainer.HORIZONTAL)
self.split.content = [self.top_container, self.bottom_container]
self.main_window.content = self.split
self.main_window.show()
def build(app):
def installHandle(widget):
packageToInstall = packageInput.value
resultInput.value = runScript(where_is_scripts + packageToInstall +
".sh")
packages = get_packages(where_is_scripts, "test.sh",
"updateYapiScripts.sh")
box = toga.Box()
listBox = toga.Box()
listLabel = toga.Label('Packages Available: ')
packageBox = toga.Box()
packageLabel = toga.Label('Package To Install:')
packageInput = toga.TextInput()
submitBox = toga.Box()
install = toga.Button('Install Package', on_press=installHandle)
resultBox = toga.Box()
resultInput = toga.TextInput(readonly=True)
listBox.add(listLabel)
packageBox.add(packageLabel)
packageBox.add(packageInput)
submitBox.add(install)
resultBox.add(resultInput)
box.add(listBox)
box.add(packageBox)
box.add(submitBox)
box.add(resultBox)
box.style.update(direction=COLUMN, padding_top=10)
listBox.style.update(direction=ROW, padding=5)
packageBox.style.update(direction=ROW, padding=5)
submitBox.style.update(direction=ROW, padding=5)
return box
def startup(self):
main_box = toga.Box(style=Pack(direction=COLUMN))
name_label = toga.Label('Test Packet: ', style=Pack(padding=(0, 5)))
self.test_packet = toga.TextInput(style=Pack(flex=1))
name_box = toga.Box(style=Pack(direction=ROW, padding=5))
name_box.add(name_label)
name_box.add(self.test_packet)
button = toga.Button('Send Test Packet',
on_press=self.send_packet,
style=Pack(padding=5))
button1 = toga.Button('Toggle GPIO C0',
on_press=self.toggle_gpio,
style=Pack(padding=5))
main_box.add(name_box)
main_box.add(button)
main_box.add(button1)
self.main_window = toga.MainWindow(title=self.formal_name)
self.main_window.content = main_box
self.main_window.show()
def build(app):
data = []
for x in range(5):
data.append([str(x) for x in range(5)])
label = toga.Label('No row selected.')
def selection_handler(widget, row):
label.text = 'You selected row: {}'.format(row) if row is not None else 'No row selected'
table = toga.Table(headings=['heading_{}'.format(x) for x in range(5)],
data=data,
style=CSS(flex=1),
on_select=selection_handler)
def insert_handler(widget):
table.data.insert(0, [str(round(random() * 100)) for _ in range(5)])
table._impl.refresh()
print('Rows', len(table.data.data))
def delete_handler(widget):
if len(table.data.data) > 0:
table.data.remove(table.data.data[0])
table._impl.refresh()
else:
print('Table is empty!')
btn_style = CSS(flex=1)
btn_insert = toga.Button('Insert Row', on_press=insert_handler, style=btn_style)
btn_delete = toga.Button('Delete Row', on_press=delete_handler, style=btn_style)
btn_box = toga.Box(children=[btn_insert, btn_delete], style=CSS(flex_direction='row'))
box = toga.Box(children=[table, btn_box, label], style=CSS(flex=1, flex_direction='column', padding=10))
return box
def create_display(self, state):
super().__init__(style=Pack(padding=50, direction=COLUMN))
self.add(toga.Label("Castaway Community"))
cast_box = toga.Box(style=Pack(direction=COLUMN))
# cast_scroll = toga.widgets.scrollcontainer.ScrollContainer(
# content=cast_box,
# style=Pack(height=200)
# )
for cast in state.get_cast():
info_box = toga.Box(style=Pack(direction=ROW))
cast_box.add(info_box)
left_box = toga.Box(style=Pack(direction=COLUMN, padding=5))
right_box = toga.Box(style=Pack(direction=COLUMN, padding=5))
info_box.add(left_box)
info_box.add(right_box)
img = cast['img']
left_box.add(toga.Label('Name: {}'.format(cast['name'])))
left_box.add(
toga.widgets.imageview.ImageView(
toga.Image('resources/images/'+img),
style=Pack(width=48, height=48, direction=COLUMN)
)
)
right_box.add(toga.Label('Stats'))
right_box.add(toga.Label('Age: {}'.format(cast['age'])))
self.add(cast_box)
super().create_display(state)
def startup(self):
# Set up main window
self.main_window = toga.MainWindow(title=self.name)
# Label to show responses.
self.label = toga.Label('Ready.')
self.tree = toga.Tree(headings=['Year', 'Title', 'Rating', 'Genre'],
data=DecadeSource(),
on_select=self.on_select_handler,
style=Pack(flex=1))
# Buttons
btn_style = Pack(flex=1)
btn_insert = toga.Button('Insert Row',
on_press=self.insert_handler,
style=btn_style)
btn_box = toga.Box(children=[btn_insert], style=Pack(direction=ROW))
# Outermost box
outer_box = toga.Box(children=[btn_box, self.tree, self.label],
style=Pack(
flex=1,
direction=COLUMN,
padding=10,
))
# Add the content on the main window
self.main_window.content = outer_box
# Show the main window
self.main_window.show()
def create_display(self, state):
self.state = state
state.new_game()
self.add(toga.Label("Name your castaways"))
cast_box = toga.Box(style=Pack(direction=COLUMN))
self.cast = []
for cast in state.get_cast():
info_box = toga.Box(style=Pack(direction=ROW))
cast_box.add(info_box)
left_box = toga.Box(style=Pack(direction=COLUMN, padding=5))
right_box = toga.Box(style=Pack(direction=COLUMN, padding=5))
info_box.add(left_box)
info_box.add(right_box)
img = cast['img']
left_box.add(
toga.widgets.imageview.ImageView(
toga.Image('resources/images/'+img),
style=Pack(width=48, height=48, direction=COLUMN)
)
)
self.cast.append(
toga.TextInput(initial=cast['name'], placeholder='Enter Name')
)
right_box.add(self.cast[-1])
self.add(cast_box)
button = toga.Button('Save', on_press=self.next, style=Pack(padding_bottom=0))
self.add(button)
def startup(self):
self.main_window = toga.MainWindow(title=self.name, size=(660, 520))
self.ScrollContainer = toga.ScrollContainer()
main_box = toga.Box()
plot_box = toga.Box()
main_box.style.padding = 10
main_box.style.update(alignment=CENTER)
main_box.style.update(direction=COLUMN)
button = toga.Button('Play',
on_press=self.playback,
style=Pack(width=100))
GenerateSpectrum(self.filename)
image_from_path = toga.Image('Figure_temp.png')
imageview_from_path = toga.ImageView(image_from_path)
imageview_from_path.style.update(height=480)
imageview_from_path.style.update(width=640)
plot_box.add(imageview_from_path)
main_box.add(button)
main_box.add(plot_box)
self.main_window.content = main_box
self.main_window.show()
def startup(self):
# Set up main window
self.main_window = toga.MainWindow(title=self.name)
self.main_window.app = self
self.partner = Eliza()
self.chat = toga.DetailedList(data=[{
'icon':
toga.Icon('resources/brutus.png'),
'title':
'Brutus',
'subtitle':
'Hello. How are you feeling today?',
}],
style=Pack(flex=1))
# Buttons
self.text_input = toga.TextInput(style=Pack(flex=1, padding=5))
send_button = toga.Button('Send',
on_press=self.handle_input,
style=Pack(padding=5))
input_box = toga.Box(children=[self.text_input, send_button],
style=Pack(direction=ROW))
# Outermost box
outer_box = toga.Box(children=[self.chat, input_box],
style=Pack(direction=COLUMN))
# Add the content on the main window
self.main_window.content = outer_box
# Show the main window
self.main_window.show()
def results_pane(self):
results_pane = toga.OptionContainer(style=Pack(width=280, padding_left=20))
self.qr_image = toga.ImageView(id='qr', image=None, style=Pack(width=250, height=250, padding_bottom=10))
self.save_qr_button = toga.Button('Save QR', on_press=self.save_qr ,style=Pack(alignment=CENTER, width=250))
self.qr_box = toga.Box(
children=[self.qr_image, self.save_qr_button],
style=Pack(direction=COLUMN, padding=10, width=270)
)
results_pane.add('QR Code', self.qr_box)
self.xmp_text = toga.MultilineTextInput(
style=Pack(width=270, height=350, padding=5)
)
self.xmp_button = toga.Button(
'Save XMP',
on_press=self.save_xmp,
style=Pack(width=250, alignment=CENTER)
)
self.xmp_box = toga.Box(
children=[self.xmp_text, self.xmp_button],
style=Pack(direction=COLUMN)
)
results_pane.add('XMP', self.xmp_box)
return results_pane
def startup(self):
# Create a main window with a name matching the app
self.main_window = toga.MainWindow(title=self.name)
global msgs
global messages
messages = toga.Table(headings=['IP', 'Message'], data=[])
msgs = []
input_box = toga.Box()
message_input = toga.TextInput()
def button_handler(widget):
global sock
sock.send(message_input.value.encode("utf-8"))
message_input.value = ""
button = toga.Button('Send', on_press=button_handler)
# Create a main content box
input_box.add(message_input)
input_box.add(button)
main_box = toga.Box()
main_box.add(messages)
main_box.add(input_box)
input_box.style.update(direction=ROW)
messages.style.update(flex=1)
message_input.style.update(flex=1)
main_box.style.update(direction=COLUMN, padding_top=10)
# Add the content on the main window
self.main_window.content = main_box
# Show the main window
self.main_window.show()
def startup(self):
# Create a main window with a name matching the app
self.main_window = toga.MainWindow(title=self.name, size=(360, 280))
# Create a main content box
main_box = toga.Box(style=Pack(direction=COLUMN))
# Add something to the main box
main_box.add(toga.Label('Hello World!', style=Pack(padding=5)))
# Create another box and add it to main_box
grid_box = toga.Box(style=Pack(direction=COLUMN, padding=5))
main_box.add(grid_box)
# Add 4 x 5 array of Buttons to the grid box
count = 1
for row in range(5):
row_box = toga.Box(style=Pack(padding=5))
for col in range(4):
row_box.add(toga.Button(f'{count}', style=Pack(padding=5)))
count += 1
grid_box.add(row_box)
# Add the content on the main window
self.main_window.content = main_box
# Show the main window
self.main_window.show()
def startup(self):
async def hello_world_async():
print("async hello from hello_world_async()")
loop = AndroidEventLoop(SelectorMinusSelect())
asyncio.set_event_loop(loop)
loop.run_forever_cooperatively()
asyncio.ensure_future(hello_world_async())
main_box = toga.Box(style=Pack(direction=COLUMN))
name_label = toga.Label("Your name: ", style=Pack(padding=(0, 5)))
self.name_input = toga.TextInput(style=Pack(flex=1))
name_box = toga.Box(style=Pack(direction=ROW, padding=5))
name_box.add(name_label)
name_box.add(self.name_input)
button = toga.Button("Say Hello!",
on_press=self.say_hello,
style=Pack(padding=5))
main_box.add(name_box)
main_box.add(button)
self.main_window = toga.MainWindow(title=self.formal_name)
self.main_window.content = main_box
self.main_window.show()