- removed +1px in ListWidget, added in lordhoto's 2007 commit 68eb28a
(aka r29971 in svn) `Fix for bug #1670082 "GUI: Modern theme gfx glitch
in launcher".`, because it made clip this last line of scrollbar in all
themes, which doesn't look good. In 2007 theme was written in .ini,
which is not the case now. I don't see any glitches after removing this
"fix";
- fixed how scrollbar top and bottom scroll buttons are drawn in
ThemeEngine::drawScrollbar: there were these weird magic numbers, but in
reality extra space that buttons should occupy is hardcoded in
scrollbar.cpp (ScrollBarWidget) and is just +1px.
Also remove the unused linesWidth variable and fix the hlLeftPadding and
hlRightPadding widget attributes to actually work.
There are still issues remaining with the caret in the list widget due
to the ellipsis being used to shorten long text. Ellipsis is accounted
for when drawing the text but not when computing the caret position.
In case there were less items in the list than on a page, it was possible
that a "scrollTo" call scrolled items out of the view even though all could
be displayed. This caused odd behavior in the load dialog in T7G. There
the list contains 10 entries. In case the last one was loaded via the dialog,
the next time it was brought up again it showed the 9th entry at the top
of the view and effectively hiding all the others. It furthermore did not
show the scroll bar because all entries would have fit onto one page.
To prevent this odd behavior, a boundary check has been added to all places
where the scroll position is set. This has been taken from "scrollToCurrent"
which already tried to prevent this.
This fixes the second issue described in bug #3610960
"T7G - savegame glitches".
