[src/trunk]: src/lib/libcurses Improve debug information.

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

details:   https://anonhg.NetBSD.org/src/rev/1d956e84bd41
branches:  trunk
changeset: 349482:1d956e84bd41
user:      blymn <blymn%NetBSD.org@localhost>
date:      Sun Dec 11 21:25:22 2016 +0000

description:
Improve debug information.

diffstat:

 lib/libcurses/copywin.c |  17 +++++++++++++++--
 1 files changed, 15 insertions(+), 2 deletions(-)

diffs (51 lines):

diff -r 6a54cc8a4684 -r 1d956e84bd41 lib/libcurses/copywin.c
--- a/lib/libcurses/copywin.c   Sun Dec 11 20:40:41 2016 +0000
+++ b/lib/libcurses/copywin.c   Sun Dec 11 21:25:22 2016 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: copywin.c,v 1.15 2009/07/22 16:57:14 roy Exp $ */
+/*     $NetBSD: copywin.c,v 1.16 2016/12/11 21:25:22 blymn Exp $       */
 
 /*-
  * Copyright (c) 1998-1999 Brett Lymn
@@ -31,7 +31,7 @@
 
 #include <sys/cdefs.h>
 #ifndef lint
-__RCSID("$NetBSD: copywin.c,v 1.15 2009/07/22 16:57:14 roy Exp $");
+__RCSID("$NetBSD: copywin.c,v 1.16 2016/12/11 21:25:22 blymn Exp $");
 #endif                         /* not lint */
 
 #include <ctype.h>
@@ -59,6 +59,13 @@
        nschar_t *np;
 #endif /* HAVE_WCHAR */
 
+#ifdef DEBUG
+       __CTRACE(__CTRACE_WINDOW,
+           "copywin %s mode: from (%d,%d) to (%d,%d-%d,%d)\n",
+           dooverlay ? "overlay" : "overwrite",
+           sminrow, smincol, dminrow, dmincol, dmaxrow, dmaxcol);
+#endif
+
        /* overwrite() and overlay() can come here with -ve srcwin coords */
        if (sminrow < 0) {
                dminrow -= sminrow;
@@ -104,12 +111,18 @@
        for (; dminrow <= dmaxrow; sminrow++, dminrow++) {
                sp = &srcwin->alines[sminrow]->line[smincol];
                end = sp + dmaxcol - dmincol;
+#ifdef DEBUG
+       __CTRACE(__CTRACE_WINDOW, "copywin: row %d\n", sminrow);
+#endif
                for (dcol = dmincol; sp <= end; dcol++, sp++) {
                        /* XXX: Perhaps this should check for the
                         * background character
                         */
                        if ((dooverlay && !isspace(sp->ch)) || !dooverlay) {
                                wmove(dstwin, dminrow, dcol);
+#ifdef DEBUG
+       __CTRACE(__CTRACE_WINDOW, "copywin: dcol = %d\n", dcol);
+#endif
 #ifndef HAVE_WCHAR
                                __waddch(dstwin, sp);
 #else