135 lines
3.8 KiB
ReStructuredText
135 lines
3.8 KiB
ReStructuredText
.. currentmodule:: efl.elementary
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List
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####
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.. image:: /images/list-preview.png
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Widget description
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==================
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A list widget is a container whose children are displayed vertically or
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horizontally, in order, and can be selected.
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The list can accept only one or multiple items selection. Also has many
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modes of items displaying.
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A list is a very simple type of list widget. For more robust
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lists, :py:class:`~efl.elementary.genlist.Genlist` should probably be used.
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Emitted signals
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===============
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- ``activated`` - The user has double-clicked or pressed
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(enter|return|spacebar) on an item.
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- ``clicked,double`` - The user has double-clicked an item.
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- ``clicked,right`` - The user has right-clicked an item. (since: 1.13)
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- ``selected`` - when the user selected an item
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- ``unselected`` - when the user unselected an item
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- ``longpressed`` - an item in the list is long-pressed
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- ``edge,top`` - the list is scrolled until the top edge
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- ``edge,bottom`` - the list is scrolled until the bottom edge
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- ``edge,left`` - the list is scrolled until the left edge
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- ``edge,right`` - the list is scrolled until the right edge
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- ``highlighted`` - an item in the list is highlighted. This is called when
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the user presses an item or keyboard selection is done so the item is
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physically highlighted.
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- ``unhighlighted`` - an item in the list is unhighlighted. This is called
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when the user releases an item or keyboard selection is moved so the item
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is physically unhighlighted.
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- ``item,focused`` - When the list item has received focus. (since 1.10)
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- ``item,unfocused`` - When the list item has lost focus. (since 1.10)
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Available styles
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================
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- ``default``
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Layout content parts
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====================
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- ``start`` - A start position object in the list item
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- ``end`` - A end position object in the list item
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Layout text parts
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=================
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- ``default`` - label in the list item
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Scrollable Interface
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====================
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This widget supports the scrollable interface.
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If you wish to control the scolling behaviour using these functions,
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inherit both the widget class and the
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:py:class:`~efl.elementary.scroller.Scrollable` class
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using multiple inheritance, for example::
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class ScrollableGenlist(Genlist, Scrollable):
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def __init__(self, canvas, *args, **kwargs):
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Genlist.__init__(self, canvas)
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Enumerations
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============
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.. _Elm_List_Mode:
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List sizing modes
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-----------------
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.. data:: ELM_LIST_COMPRESS
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The list won't set any of its size hints to inform how a possible container
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should resize it.
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Then, if it's not created as a "resize object", it might end with zeroed
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dimensions. The list will respect the container's geometry and, if any of
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its items won't fit into its transverse axis, one won't be able to scroll it
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in that direction.
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.. data:: ELM_LIST_SCROLL
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Default value.
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This is the same as ELM_LIST_COMPRESS, with the exception that if any of
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its items won't fit into its transverse axis, one will be able to scroll
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it in that direction.
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.. data:: ELM_LIST_LIMIT
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Sets a minimum size hint on the list object, so that containers may
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respect it (and resize itself to fit the child properly).
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More specifically, a minimum size hint will be set for its transverse
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axis, so that the largest item in that direction fits well. This is
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naturally bound by the list object's maximum size hints, set externally.
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.. data:: ELM_LIST_EXPAND
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Besides setting a minimum size on the transverse axis, just like on
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ELM_LIST_LIMIT, the list will set a minimum size on the longitudinal
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axis, trying to reserve space to all its children to be visible at a time.
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This is naturally bound by the list object's maximum size hints, set
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externally.
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Inheritance diagram
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===================
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.. inheritance-diagram::
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List
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ListItem
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:parts: 2
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.. autoclass:: List
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.. autoclass:: ListItem
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