def _update_ipython_widget(self, value=None):
"""
Update the progress bar to the given value (out of a total
given to the constructor).
This method is for use in the IPython notebook 2+.
"""
# Create and display an empty progress bar widget,
# if none exists.
if not hasattr(self, '_widget'):
# Import only if an IPython widget, i.e., widget in iPython NB
if ipython_major_version < 4:
from IPython.html import widgets
self._widget = widgets.FloatProgressWidget()
else:
from ipywidgets import widgets
self._widget = widgets.FloatProgress()
from IPython.display import display
display(self._widget)
self._widget.value = 0
# Calculate percent completion, and update progress bar
frac = (value / self._total)
self._widget.value = frac * 100
self._widget.description = ' ({:>6.2%})'.format(frac)
def __init__(self, *args, **kwd):
super(ToggleGo, self).__init__(*args, **kwd)
self._go_container = widgets.HBox(visible=self.toggle.value)
self._go_button = widgets.Button(description="Lock settings and Go!",
disabled=True, visible=False)
self._change_settings = widgets.Button(description="Unlock settings",
disabled=True,
visible=False)
self._go_container.children = [self._go_button, self._change_settings]
self._progress_container = widgets.Box()
self._progress_bar = widgets.FloatProgress(min=0, max=1.0,
step=0.01, value=0.0,
visible=False)
self._progress_container.children = [self._progress_bar]
# we want the go button to be in a container below the
# ToggleContainer's container -- actually, no, want these
# buttons controlled by toggle...wait, no, I really do want that, but
# I also want to tie their visibility to the toggle.
kids = list(self.children)
kids.append(self._go_container)
kids.append(self._progress_container)
self.children = kids
# Tie visibility of go button to toggle state. Needs to be separate
# from the container.
link((self._go_container, str('visible')), (self.toggle, str('value')))
self._go_button.on_click(self.go())
self._change_settings.on_click(self.unlock())
# Tie self._state_monitor to both go button and color of toggle button
self._state_monitor.on_trait_change(self.state_change_handler(),
str('value'))
self._state_monitor.on_trait_change(set_color_for(self), str('value'))
def _update_ipython_widget(self, value=None):
"""
Update the progress bar to the given value (out of a total
given to the constructor).
This method is for use in the IPython notebook 2+.
"""
# Create and display an empty progress bar widget,
# if none exists.
if not hasattr(self, '_widget'):
# Import only if an IPython widget, i.e., widget in iPython NB
if ipython_major_version < 4:
self._widget = widgets.FloatProgressWidget()
else:
self._widget = widgets.FloatProgress()
if is_widgets_available():
display(self._widget)
self._widget.value = 0
# Calculate percent completion, and update progress bar
percent = (float(value)/self._total) * 100.0
self._widget.value = percent
self._widget.description =' ({0:>6s}%)'.format('{0:.2f}'.format(percent))
