widget_int.py
60 lines
| 2.3 KiB
| text/x-python
|
PythonLexer
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r14283 | """IntWidget class. | ||
Represents an unbounded int 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 | ||||
#----------------------------------------------------------------------------- | ||||
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r14540 | from .widget import DOMWidget | ||
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r14670 | from IPython.utils.traitlets import Unicode, CInt, Bool, List, Enum | ||
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r14266 | |||
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r14283 | #----------------------------------------------------------------------------- | ||
# Classes | ||||
#----------------------------------------------------------------------------- | ||||
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r14670 | class _IntWidget(DOMWidget): | ||
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r14603 | value = CInt(0, help="Int value", sync=True) | ||
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r14588 | disabled = Bool(False, help="Enable or disable user changes", sync=True) | ||
description = Unicode(help="Description of the value this widget represents", sync=True) | ||||
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r14670 | |||
class _BoundedIntWidget(_IntWidget): | ||||
step = CInt(1, help="Minimum step that the value can take (ignored by some views)", sync=True) | ||||
max = CInt(100, help="Max value", sync=True) | ||||
min = CInt(0, help="Min value", 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 IntTextWidget(_IntWidget): | ||||
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r14701 | _view_name = Unicode('IntTextView', sync=True) | ||
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r14670 | |||
class BoundedIntTextWidget(_BoundedIntWidget): | ||||
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r14701 | _view_name = Unicode('IntTextView', sync=True) | ||
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r14670 | |||
class IntSliderWidget(_BoundedIntWidget): | ||||
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r14701 | _view_name = Unicode('IntSliderView', sync=True) | ||
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r14670 | orientation = Enum([u'horizontal', u'vertical'], u'horizontal', | ||
help="Vertical or horizontal.", sync=True) | ||||
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r14982 | readout = Bool(False, help="Display the current value of the slider next to it.", sync=True) | ||
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r14670 | |||
class IntProgressWidget(_BoundedIntWidget): | ||||
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r14701 | _view_name = Unicode('ProgressView', sync=True) | ||