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Fix bugs found in scrolling, make scrolling never leave blank

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lines in the menu.
This commit is contained in:
phil 1998-07-03 15:20:30 +00:00
parent 25718b8405
commit 4229b1a8cc
1 changed files with 13 additions and 8 deletions
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21
usr.bin/menuc/menu_sys.def
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@ -1,4 +1,4 @@
/* $NetBSD: menu_sys.def,v 1.12 1998/07/01 23:02:50 phil Exp $ */
/* $NetBSD: menu_sys.def,v 1.13 1998/07/03 15:20:30 phil Exp $ */
/*
* Copyright 1997 Piermont Information Systems Inc.
@ -479,9 +479,7 @@ static void process_req (struct menudesc *m, int num, int req)
else if (m->topline == 0)
mbeep();
else {
m->topline -= m->h-1;
if (m->topline < 0)
m->topline = 0;
m->topline = MAX(0,m->topline-m->h-1);
wclear (m->mw);
refresh = 1;
}
@ -489,10 +487,11 @@ static void process_req (struct menudesc *m, int num, int req)
} else if (req == REQ_SCROLLDOWN) {
if (!(m->mopt & SCROLL))
mbeep();
else if (m->topline + m->h - 1 > m->numopts + hasexit)
else if (m->topline + m->h - 1 >= m->numopts + hasexit)
mbeep();
else {
m->topline += m->h-1;
m->topline = MIN(m->topline+m->h-1,
m->numopts+hasexit-m->h+1);
wclear (m->mw);
refresh = 1;
}
@ -523,9 +522,10 @@ static void process_req (struct menudesc *m, int num, int req)
if (m->mopt & SCROLL && scroll_sel) {
while (m->cursel >= m->topline + m->h -1 )
m->topline += m->h -1;
m->topline = MIN(m->topline+m->h-1,
m->numopts+hasexit-m->h+1);
while (m->cursel < m->topline)
m->topline -= m->h -1;
m->topline = MAX(0,m->topline-m->h+1);
}
if (refresh) {
@ -607,3 +607,8 @@ void process_menu (int num)
process_item (&num, -1);
}
/* Control L is end of standard routines, remaining only for dynamic. */
/* Beginning of routines for dynamic menus. */