body = HSplit([
Window(FormattedTextControl(left_text), align=WindowAlign.LEFT),
Window(height=1, char='-'),
Window(FormattedTextControl(center_text), align=WindowAlign.CENTER),
Window(height=1, char='-'),
Window(FormattedTextControl(right_text), align=WindowAlign.RIGHT),
])
# 2. Key bindings
kb = KeyBindings()
@kb.add('q')
def _(event):
" Quit application. "
event.app.exit()
# 3. The `Application`
application = Application(layout=Layout(body),
key_bindings=kb,
full_screen=True)
def run():
application.run()
if __name__ == '__main__':
run()
@bindings.add('q')
def _(event):
" Quit. "
event.app.exit()
style = Style.from_dict({
'status': 'reverse',
'status.position': '#aaaa00',
'status.key': '#ffaa00',
'not-searching': '#888888',
})
# create application.
application = Application(layout=Layout(
root_container,
focused_element=text_area,
),
key_bindings=bindings,
enable_page_navigation_bindings=True,
mouse_support=True,
style=style,
full_screen=True)
def run():
application.run()
if __name__ == '__main__':
run()
def main():
# The layout.
search_field = SearchToolbar() # For reverse search.
output_field = TextArea(style='class:output-field', text=help_text)
input_field = TextArea(height=1,
prompt='>>> ',
style='class:input-field',
multiline=False,
wrap_lines=False,
search_field=search_field)
container = HSplit([
output_field,
Window(height=1, char='-', style='class:line'),
input_field,
search_field,
])
# Attach accept handler to the input field. We do this by assigning the
# handler to the `TextArea` that we created earlier. it is also possible to
# pass it to the constructor of `TextArea`.
# NOTE: It's better to assign an `accept_handler`, rather then adding a
# custom ENTER key binding. This will automatically reset the input
# field and add the strings to the history.
def accept(buff):
# Evaluate "calculator" expression.
try:
output = '\n\nIn: {}\nOut: {}'.format(
input_field.text,
eval(input_field.text)) # Don't do 'eval' in real code!
except BaseException as e:
output = '\n\n{}'.format(e)
new_text = output_field.text + output
# Add text to output buffer.
output_field.buffer.document = Document(text=new_text,
cursor_position=len(new_text))
input_field.accept_handler = accept
# The key bindings.
kb = KeyBindings()
@kb.add('c-c')
@kb.add('c-q')
def _(event):
" Pressing Ctrl-Q or Ctrl-C will exit the user interface. "
event.app.exit()
# Style.
style = Style([
('output-field', 'bg:#000044 #ffffff'),
('input-field', 'bg:#000000 #ffffff'),
('line', '#004400'),
])
# Run application.
application = Application(layout=Layout(container,
focused_element=input_field),
key_bindings=kb,
style=style,
mouse_support=True,
full_screen=True)
application.run()
Window(FormattedTextControl(LIPSUM), style='bg:#444488'),
], padding=1, padding_style='bg:#888888', align=HorizontalAlign.JUSTIFY, height=5, padding_char='|'),
]),
], padding=1, padding_style="bg:#ff3333 #ffffff", padding_char='.', align=VerticalAlign.TOP)
])
# 2. Key bindings
kb = KeyBindings()
@kb.add('q')
def _(event):
" Quit application. "
event.app.exit()
# 3. The `Application`
application = Application(
layout=Layout(body),
key_bindings=kb,
full_screen=True)
def run():
application.run()
if __name__ == '__main__':
run()
When the buffer on the left changes, update the buffer on
the right. We just reverse the text.
"""
right_buffer.text = left_buffer.text[::-1]
left_buffer.on_text_changed += default_buffer_changed
# 3. Creating an `Application` instance
# ----------------------------------
# This glues everything together.
application = Application(
layout=Layout(root_container, focused_element=left_window),
key_bindings=kb,
# Let's add mouse support!
mouse_support=True,
# Using an alternate screen buffer means as much as: "run full screen".
# It switches the terminal to an alternate screen.
full_screen=True)
# 4. Run the application
# -------------------
def run():
'window.border shadow': '#444444',
'focused button': 'bg:#880000 #ffffff noinherit',
# Styling for Dialog widgets.
'radiolist focused': 'noreverse',
'radiolist focused radio.selected': 'reverse',
'button-bar': 'bg:#aaaaff'
})
application = Application(
layout=Layout(
root_container,
focused_element=yes_button,
),
key_bindings=bindings,
style=style,
mouse_support=True,
full_screen=True)
def run():
result = application.run()
print('You said: %r' % result)
if __name__ == '__main__':
run()
MenuItem('About', handler=do_about),
]),
],
floats=[
Float(xcursor=True,
ycursor=True,
content=CompletionsMenu(max_height=16, scroll_offset=1)),
],
key_bindings=bindings)
style = Style.from_dict({
'status': 'reverse',
'shadow': 'bg:#440044',
})
layout = Layout(root_container, focused_element=text_field)
application = Application(layout=layout,
enable_page_navigation_bindings=True,
style=style,
mouse_support=True,
full_screen=True)
def run():
application.run()
if __name__ == '__main__':
run()