[src/netbsd-8]: src/lib/libcurses Pull up following revision(s) (requested by...

[martin <martin%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/e024d18a5117
branches:  netbsd-8
changeset: 852033:e024d18a5117
user:      martin <martin%NetBSD.org@localhost>
date:      Tue Oct 09 09:49:35 2018 +0000

description:
Pull up following revision(s) (requested by roy in ticket #1049):

        lib/libcurses/refresh.c: revision 1.89
        lib/libcurses/newwin.c: revision 1.53

curses: allow drawing the lowest right hand cell of the terminal

This is a historical behaviour that needs fixing
If any terminal does scroll when drawing in the lowest right hand cell
of the terminal then an entry should be made in the terminfo database
(currently there is no standard code) to state that and define
__SCROLLWIN as before.

Fixes PR# 30978.

diffstat:

 lib/libcurses/newwin.c  |  10 +++++-
 lib/libcurses/refresh.c |  78 +++++++++++++++++++++++-------------------------
 2 files changed, 45 insertions(+), 43 deletions(-)

diffs (137 lines):

diff -r 74750b4a9dcd -r e024d18a5117 lib/libcurses/newwin.c
--- a/lib/libcurses/newwin.c    Tue Oct 09 09:46:09 2018 +0000
+++ b/lib/libcurses/newwin.c    Tue Oct 09 09:49:35 2018 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: newwin.c,v 1.50.6.1 2018/10/04 10:20:12 martin Exp $   */
+/*     $NetBSD: newwin.c,v 1.50.6.2 2018/10/09 09:49:35 martin Exp $   */
 
 /*
  * Copyright (c) 1981, 1993, 1994
@@ -34,7 +34,7 @@
 #if 0
 static char sccsid[] = "@(#)newwin.c   8.3 (Berkeley) 7/27/94";
 #else
-__RCSID("$NetBSD: newwin.c,v 1.50.6.1 2018/10/04 10:20:12 martin Exp $");
+__RCSID("$NetBSD: newwin.c,v 1.50.6.2 2018/10/09 09:49:35 martin Exp $");
 #endif
 #endif                         /* not lint */
 
@@ -422,8 +422,14 @@
                win->flags |= __ENDLINE;
                if (win->begx == 0 && win->maxy == LINES && win->begy == 0)
                        win->flags |= __FULLWIN;
+               /*
+                * Enable this if we have a terminfo setting which claims
+                * terminal will scroll. Currently there is none.
+                */
+#if 0
                if (win->begy + win->maxy == LINES)
                        win->flags |= __SCROLLWIN;
+#endif
        }
 }
 
diff -r 74750b4a9dcd -r e024d18a5117 lib/libcurses/refresh.c
--- a/lib/libcurses/refresh.c   Tue Oct 09 09:46:09 2018 +0000
+++ b/lib/libcurses/refresh.c   Tue Oct 09 09:49:35 2018 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: refresh.c,v 1.88 2017/03/20 20:42:39 christos Exp $    */
+/*     $NetBSD: refresh.c,v 1.88.4.1 2018/10/09 09:49:35 martin Exp $  */
 
 /*
  * Copyright (c) 1981, 1993, 1994
@@ -34,7 +34,7 @@
 #if 0
 static char sccsid[] = "@(#)refresh.c  8.7 (Berkeley) 8/13/94";
 #else
-__RCSID("$NetBSD: refresh.c,v 1.88 2017/03/20 20:42:39 christos Exp $");
+__RCSID("$NetBSD: refresh.c,v 1.88.4.1 2018/10/09 09:49:35 martin Exp $");
 #endif
 #endif                         /* not lint */
 
@@ -1208,50 +1208,46 @@
                        wx++;
                        if (wx >= win->maxx &&
                            wy == win->maxy - 1 && !_cursesi_screen->curwin) {
-                               if (win->flags & __SCROLLOK) {
-                                       if (win->flags & __ENDLINE)
-                                               __unsetattr(1);
-                                       if (!(win->flags & __SCROLLWIN)) {
-                                               if (!_cursesi_screen->curwin) {
-                                                       csp->attr = nsp->attr;
-                                                       csp->ch = nsp->ch;
+                               if (win->flags & __ENDLINE)
+                                       __unsetattr(1);
+                               if (!(win->flags & __SCROLLWIN)) {
+                                       if (!_cursesi_screen->curwin) {
+                                               csp->attr = nsp->attr;
+                                               csp->ch = nsp->ch;
 #ifdef HAVE_WCHAR
-                                                       if (_cursesi_copy_nsp(nsp->nsp, csp) == ERR)
-                                                               return ERR;
-#endif /* HAVE_WCHAR */
-                                               }
-#ifndef HAVE_WCHAR
-                                               __cputchar((int) nsp->ch);
-#else
-                                               if ( WCOL( *nsp ) > 0 ) {
-                                                       __cputwchar((int)nsp->ch);
-#ifdef DEBUG
-                                                       __CTRACE(__CTRACE_REFRESH,
-                                                           "makech: (%d,%d)putwchar(0x%x)\n",
-                                                               wy, wx - 1,
-                                                               nsp->ch );
-#endif /* DEBUG */
-                                                       /*
-                                                        * Output non-spacing
-                                                        * characters for the
-                                                        * cell.
-                                                        */
-                                                       __cursesi_putnsp(nsp->nsp,
-                                                                        wy, wx);
-
-                                               }
+                                               if (_cursesi_copy_nsp(nsp->nsp, csp) == ERR)
+                                                       return ERR;
 #endif /* HAVE_WCHAR */
                                        }
-                                       if (wx < curscr->maxx) {
-                                               domvcur(win,
-                                                   _cursesi_screen->ly, wx,
-                                                   (int)(win->maxy - 1),
-                                                   (int)(win->maxx - 1));
+#ifndef HAVE_WCHAR
+                                       __cputchar((int) nsp->ch);
+#else
+                                       if ( WCOL( *nsp ) > 0 ) {
+                                               __cputwchar((int)nsp->ch);
+#ifdef DEBUG
+                                               __CTRACE(__CTRACE_REFRESH,
+                                                   "makech: (%d,%d)putwchar(0x%x)\n",
+                                                       wy, wx - 1,
+                                                       nsp->ch );
+#endif /* DEBUG */
+                                               /*
+                                                * Output non-spacing
+                                                * characters for the
+                                                * cell.
+                                                */
+                                               __cursesi_putnsp(nsp->nsp, wy, wx);
                                        }
-                                       _cursesi_screen->ly = win->maxy - 1;
-                                       _cursesi_screen->lx = win->maxx - 1;
-                                       return (OK);
+#endif /* HAVE_WCHAR */
                                }
+                               if (wx < curscr->maxx) {
+                                       domvcur(win,
+                                           _cursesi_screen->ly, wx,
+                                           (int)(win->maxy - 1),
+                                           (int)(win->maxx - 1));
+                               }
+                               _cursesi_screen->ly = win->maxy - 1;
+                               _cursesi_screen->lx = win->maxx - 1;
+                               return OK;
                        }
                        if (wx < win->maxx || wy < win->maxy - 1 ||
                            !(win->flags & __SCROLLWIN))