github-code/lvgl
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

feat(scroll): user-defined scrollbar length using LV_STYLE_LENGTH (#7306)

Browse Source 
Co-authored-by: Gabor Kiss-Vamosi <kisvegabor@gmail.com>
This commit is contained in:
Michele Perla
2024-11-29 02:47:46 +01:00
committed by GitHub
parent 2093644d71
commit b05382e613
3 changed files with 26 additions and 4 deletions
Download Patch File Download Diff File Expand all files Collapse all files

22
docs/details/base-widget/scroll.rst
View File

@@ -74,9 +74,27 @@ can be set directly on the :cpp:enumerator:`LV_PART_SCROLLBAR` part of a Widget,
on the Widget's LV_PART_MAIN part, or that of any of its parents, to make a scrollbar
inherit the base direction.
``pad_left/right/top/bottom`` sets the spacing around the scrollbars and
``width`` sets the scrollbar's width.
``pad_left/right/top/bottom`` sets the spacing around the scrollbars,
``width`` sets the scrollbar's width and ``length`` sets the scrollbar's length:
If `length` is not set or left at `0` the scrollbar's length will be set automatically according to the length of the content.
.. code-block:: c
static lv_style_t style_scrollbar;
lv_style_init(&style_scrollbar);
lv_style_set_pad_left(&style_scrollbar, 2);
lv_style_set_pad_right(&style_scrollbar, 2);
lv_style_set_pad_top(&style_scrollbar, 2);
lv_style_set_pad_bottom(&style_scrollbar, 2);
lv_style_set_width(&style_scrollbar, 10);
lv_style_set_length(&style_scrollbar, 50);
...
lv_obj_add_style(widget, &style_scrollbar, LV_PART_SCROLLBAR);
The minimum length of the scrollbar is fixed to 10, while its maximum length is limited by the
Widget's height or width, depending on whether the scrollbar is vertical or horizontal. Any length value
set outside of these limits will automatically result in a length fixed to either limit.
.. _scroll_events: