71 lines
2.2 KiB
ReStructuredText
71 lines
2.2 KiB
ReStructuredText
.. currentmodule:: efl.elementary
|
|
|
|
Slider
|
|
######
|
|
|
|
.. image:: /images/slider-preview.png
|
|
|
|
|
|
Widget description
|
|
==================
|
|
|
|
The slider adds a draggable "slider" widget for selecting the value of
|
|
something within a range.
|
|
|
|
A slider can be horizontal or vertical. It can contain an Icon and has a
|
|
primary label as well as a units label (that is formatted with floating
|
|
point values and thus accepts a printf-style format string, like
|
|
``"%1.2f units"``. There is also an indicator string that may be somewhere
|
|
else (like on the slider itself) that also accepts a format string like
|
|
units. Label, Icon Unit and Indicator strings/objects are optional.
|
|
|
|
A slider may be inverted which means values invert, with high vales being
|
|
on the left or top and low values on the right or bottom (as opposed to
|
|
normally being low on the left or top and high on the bottom and right).
|
|
|
|
The slider should have its minimum and maximum values set by the
|
|
application with :py:attr:`Slider.min_max` and value should also be set by
|
|
the application before use with :py:attr:`Slider.value`. The span of the
|
|
slider is its length (horizontally or vertically). This will be scaled by
|
|
the object or applications scaling factor. At any point code can query the
|
|
slider for its value with :py:attr:`Slider.value`.
|
|
|
|
|
|
Emitted signals
|
|
===============
|
|
|
|
- ``changed`` - Whenever the slider value is changed by the user.
|
|
- ``slider,drag,start`` - dragging the slider indicator around has
|
|
started.
|
|
- ``slider,drag,stop`` - dragging the slider indicator around has
|
|
stopped.
|
|
- ``delay,changed`` - A short time after the value is changed by
|
|
the user. This will be called only when the user stops dragging
|
|
for a very short period or when they release their finger/mouse,
|
|
so it avoids possibly expensive reactions to the value change.
|
|
- ``focused`` - When the slider has received focus. (since 1.8)
|
|
- ``unfocused`` - When the slider has lost focus. (since 1.8)
|
|
|
|
|
|
Layout content parts
|
|
====================
|
|
|
|
- ``icon`` - An icon of the slider
|
|
- ``end`` - A end part content of the slider
|
|
|
|
|
|
Layout text parts
|
|
=================
|
|
|
|
- ``default`` - Label of the slider
|
|
|
|
|
|
Inheritance diagram
|
|
===================
|
|
|
|
.. inheritance-diagram:: Slider
|
|
:parts: 2
|
|
|
|
|
|
.. autoclass:: Slider
|