132 lines
3.8 KiB
Python
132 lines
3.8 KiB
Python
# Copyright (c) Jupyter Development Team.
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# Distributed under the terms of the Modified BSD License.
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"""Box widgets.
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These widgets are containers that can be used to
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group other widgets together and control their
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relative layouts.
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"""
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from .widget import register, widget_serialization, Widget
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from .domwidget import DOMWidget
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from .widget_core import CoreWidget
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from .docutils import doc_subst
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from .trait_types import TypedTuple
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from traitlets import Unicode, CaselessStrEnum, Instance
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_doc_snippets = {}
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_doc_snippets['box_params'] = """
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children: iterable of Widget instances
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list of widgets to display
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box_style: str
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one of 'success', 'info', 'warning' or 'danger', or ''.
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Applies a predefined style to the box. Defaults to '',
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which applies no pre-defined style.
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"""
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@register
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@doc_subst(_doc_snippets)
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class Box(DOMWidget, CoreWidget):
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""" Displays multiple widgets in a group.
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The widgets are laid out horizontally.
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Parameters
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----------
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{box_params}
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Examples
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--------
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>>> import ipywidgets as widgets
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>>> title_widget = widgets.HTML('<em>Box Example</em>')
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>>> slider = widgets.IntSlider()
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>>> widgets.Box([title_widget, slider])
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"""
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_model_name = Unicode('BoxModel').tag(sync=True)
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_view_name = Unicode('BoxView').tag(sync=True)
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# Child widgets in the container.
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# Using a tuple here to force reassignment to update the list.
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# When a proper notifying-list trait exists, use that instead.
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children = TypedTuple(trait=Instance(Widget), help="List of widget children").tag(
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sync=True, **widget_serialization)
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box_style = CaselessStrEnum(
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values=['success', 'info', 'warning', 'danger', ''], default_value='',
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help="""Use a predefined styling for the box.""").tag(sync=True)
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def __init__(self, children=(), **kwargs):
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kwargs['children'] = children
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super(Box, self).__init__(**kwargs)
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self.on_displayed(Box._fire_children_displayed)
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def _fire_children_displayed(self):
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for child in self.children:
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child._handle_displayed()
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@register
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@doc_subst(_doc_snippets)
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class VBox(Box):
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""" Displays multiple widgets vertically using the flexible box model.
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Parameters
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----------
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{box_params}
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Examples
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--------
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>>> import ipywidgets as widgets
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>>> title_widget = widgets.HTML('<em>Vertical Box Example</em>')
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>>> slider = widgets.IntSlider()
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>>> widgets.VBox([title_widget, slider])
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"""
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_model_name = Unicode('VBoxModel').tag(sync=True)
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_view_name = Unicode('VBoxView').tag(sync=True)
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@register
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@doc_subst(_doc_snippets)
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class HBox(Box):
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""" Displays multiple widgets horizontally using the flexible box model.
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Parameters
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----------
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{box_params}
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Examples
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--------
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>>> import ipywidgets as widgets
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>>> title_widget = widgets.HTML('<em>Horizontal Box Example</em>')
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>>> slider = widgets.IntSlider()
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>>> widgets.HBox([title_widget, slider])
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"""
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_model_name = Unicode('HBoxModel').tag(sync=True)
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_view_name = Unicode('HBoxView').tag(sync=True)
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@register
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class GridBox(Box):
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""" Displays multiple widgets in rows and columns using the grid box model.
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Parameters
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----------
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{box_params}
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Examples
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--------
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>>> import ipywidgets as widgets
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>>> title_widget = widgets.HTML('<em>Grid Box Example</em>')
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>>> slider = widgets.IntSlider()
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>>> button1 = widgets.Button(description='1')
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>>> button2 = widgets.Button(description='2')
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>>> # Create a grid with two columns, splitting space equally
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>>> layout = widgets.Layout(grid_template_columns='1fr 1fr')
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>>> widgets.GridBox([title_widget, slider, button1, button2], layout=layout)
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"""
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_model_name = Unicode('GridBoxModel').tag(sync=True)
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_view_name = Unicode('GridBoxView').tag(sync=True)
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