Scrollable GUI object

It looks like now I can avoid "full screen redraw" at any "Scrollable" object change. Now it will redraw "Scrollable" box only. It's not a very nice implementation, but it works. Most useful it will be for color GUI (devo8 and devo12). With v5.0.0 build it will change 3 pages only (Trims, Datalog and Debuglog), but nightly builds use many pages with "Scrollable" object.

I need last test for text GUI.

I don't think that this will help too much, since the scrollable box is usually the whole page, except perhaps the header...

Moreover, it doesn't work well with text GUI. LCD_Clear(0x00) is much faster than LCD_FillRect(x, y, w, h, 0x0).

Now I can do it for all color GUI pages, not only with Scrollable object, but with Scrollbar object also. It's only 12% faster, but looks more natural when updated scrollable content only, not full page.

By the way, I found next nightly builds bug -> if I call edit any toggle icon, it position will reset to x=0 y=32. The v5.0.0 release has not such problem.

vlad_vy wrote: By the way, I found next nightly builds bug -> if I call edit any toggle icon, it position will reset to x=0 y=32. The v5.0.0 release has not such problem.

Fixed completely:
github.com/DeviationTX/deviation/pull/377

Why the color GUI of nightly builds work noticeably slower? The scrolling is at least twice slower vs v5.0.0.