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top: standardize PgUp/PgDn management within task area

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This commit standardizes the behavior of the PgUp/PgDn
keys when on the main top display. With PgDn, the last
process will become the first process. With PgUp, that
first task will now appear as the last task displayed.

[ this also eliminates some quirks that were evident ]
[ when paging at or near the end of the process list ]

Signed-off-by: Jim Warner <james.warner@comcast.net>
This commit is contained in:
Jim Warner 2019-06-29 00:00:00 -05:00 committed by Craig Small
parent e7aa90a866
commit ac83617d4f
1 changed files with 2 additions and 2 deletions
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4
top/top.c
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@ -5559,14 +5559,14 @@ static void keys_window (int ch) {
case kbd_PGUP:
if (VIZCHKw(w)) {
if (CHKw(w, Show_IDLEPS) && 0 < w->begtask) {
w->begnext = -(w->winlines - 1);
w->begnext = -(w->winlines - (Rc.mode_altscr ? 1 : 2));
}
}
break;
case kbd_PGDN:
if (VIZCHKw(w)) {
if (CHKw(w, Show_IDLEPS) && w->begtask < Frame_maxtask - 1) {
w->begnext = +(w->winlines - 1);
w->begnext = +(w->winlines - (Rc.mode_altscr ? 1 : 2));
}
}
break;