|
|
"""FloatWidget class.
|
|
|
|
|
|
Represents an unbounded float using a widget.
|
|
|
"""
|
|
|
#-----------------------------------------------------------------------------
|
|
|
# Copyright (c) 2013, the IPython Development Team.
|
|
|
#
|
|
|
# Distributed under the terms of the Modified BSD License.
|
|
|
#
|
|
|
# The full license is in the file COPYING.txt, distributed with this software.
|
|
|
#-----------------------------------------------------------------------------
|
|
|
|
|
|
#-----------------------------------------------------------------------------
|
|
|
# Imports
|
|
|
#-----------------------------------------------------------------------------
|
|
|
from .widget import DOMWidget
|
|
|
from IPython.utils.traitlets import Unicode, CFloat, Bool, Enum
|
|
|
|
|
|
#-----------------------------------------------------------------------------
|
|
|
# Classes
|
|
|
#-----------------------------------------------------------------------------
|
|
|
class _FloatWidget(DOMWidget):
|
|
|
value = CFloat(0.0, help="Float value", sync=True)
|
|
|
disabled = Bool(False, help="Enable or disable user changes", sync=True)
|
|
|
description = Unicode(help="Description of the value this widget represents", sync=True)
|
|
|
|
|
|
|
|
|
class _BoundedFloatWidget(_FloatWidget):
|
|
|
max = CFloat(100.0, help="Max value", sync=True)
|
|
|
min = CFloat(0.0, help="Min value", sync=True)
|
|
|
step = CFloat(0.1, help="Minimum step that the value can take (ignored by some views)", sync=True)
|
|
|
|
|
|
def __init__(self, *pargs, **kwargs):
|
|
|
"""Constructor"""
|
|
|
DOMWidget.__init__(self, *pargs, **kwargs)
|
|
|
self.on_trait_change(self._validate, ['value', 'min', 'max'])
|
|
|
|
|
|
def _validate(self, name, old, new):
|
|
|
"""Validate value, max, min."""
|
|
|
if self.min > new or new > self.max:
|
|
|
self.value = min(max(new, self.min), self.max)
|
|
|
|
|
|
|
|
|
class FloatTextWidget(_FloatWidget):
|
|
|
_view_name = Unicode('FloatTextView', sync=True)
|
|
|
|
|
|
|
|
|
class BoundedFloatTextWidget(_BoundedFloatWidget):
|
|
|
_view_name = Unicode('FloatTextView', sync=True)
|
|
|
|
|
|
|
|
|
class FloatSliderWidget(_BoundedFloatWidget):
|
|
|
_view_name = Unicode('FloatSliderView', sync=True)
|
|
|
orientation = Enum([u'horizontal', u'vertical'], u'horizontal',
|
|
|
help="Vertical or horizontal.", sync=True)
|
|
|
readout = Bool(True, help="Display the current value of the slider next to it.", sync=True)
|
|
|
|
|
|
|
|
|
class FloatProgressWidget(_BoundedFloatWidget):
|
|
|
_view_name = Unicode('ProgressView', sync=True)
|
|
|
|
