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[src/trunk]: src Implement is_term_resized and resize_term(3) ncurses extensi...
details: https://anonhg.NetBSD.org/src/rev/cfd5764d1482
branches: trunk
changeset: 820280:cfd5764d1482
user: roy <roy%NetBSD.org@localhost>
date: Thu Jan 05 21:25:17 2017 +0000
description:
Implement is_term_resized and resize_term(3) ncurses extensions.
resizeterm(3) is now a wrapper for resize_term(3).
diffstat:
distrib/sets/lists/comp/mi | 8 ++++++-
lib/libcurses/Makefile | 6 +++-
lib/libcurses/curses.3 | 3 +-
lib/libcurses/curses.h | 4 ++-
lib/libcurses/curses_screen.3 | 27 ++++++++++++++++++++----
lib/libcurses/resize.c | 46 ++++++++++++++++++++++++++++++++++++++----
6 files changed, 79 insertions(+), 15 deletions(-)
diffs (281 lines):
diff -r 16fe592222fb -r cfd5764d1482 distrib/sets/lists/comp/mi
--- a/distrib/sets/lists/comp/mi Thu Jan 05 20:37:06 2017 +0000
+++ b/distrib/sets/lists/comp/mi Thu Jan 05 21:25:17 2017 +0000
@@ -1,4 +1,4 @@
-# $NetBSD: mi,v 1.2096 2017/01/05 20:31:37 roy Exp $
+# $NetBSD: mi,v 1.2097 2017/01/05 21:25:18 roy Exp $
#
# Note: don't delete entries from here - mark them as "obsolete" instead.
./etc/mtree/set.comp comp-sys-root
@@ -6878,6 +6878,7 @@
./usr/share/man/cat3/is_keypad.0 comp-c-catman .cat
./usr/share/man/cat3/is_leaveok.0 comp-c-catman .cat
./usr/share/man/cat3/is_linetouched.0 comp-c-catman .cat
+./usr/share/man/cat3/is_term_resized.0 comp-c-catman .cat
./usr/share/man/cat3/is_wintouched.0 comp-c-catman .cat
./usr/share/man/cat3/isalnum.0 comp-c-catman .cat
./usr/share/man/cat3/isalpha.0 comp-c-catman .cat
@@ -8676,6 +8677,7 @@
./usr/share/man/cat3/reset_prog_mode.0 comp-c-catman .cat
./usr/share/man/cat3/reset_shell_mode.0 comp-c-catman .cat
./usr/share/man/cat3/resetty.0 comp-c-catman .cat
+./usr/share/man/cat3/resize_term.0 comp-c-catman .cat
./usr/share/man/cat3/resizeterm.0 comp-c-catman .cat
./usr/share/man/cat3/resolver.0 comp-c-catman .cat
./usr/share/man/cat3/rewind.0 comp-c-catman .cat
@@ -14230,6 +14232,7 @@
./usr/share/man/html3/is_keypad.html comp-c-htmlman html
./usr/share/man/html3/is_leaveok.html comp-c-htmlman html
./usr/share/man/html3/is_linetouched.html comp-c-htmlman html
+./usr/share/man/html3/is_term_resized.html comp-c-htmlman html
./usr/share/man/html3/is_wintouched.html comp-c-htmlman html
./usr/share/man/html3/isalnum.html comp-c-htmlman html
./usr/share/man/html3/isalpha.html comp-c-htmlman html
@@ -15988,6 +15991,7 @@
./usr/share/man/html3/reset_prog_mode.html comp-c-htmlman html
./usr/share/man/html3/reset_shell_mode.html comp-c-htmlman html
./usr/share/man/html3/resetty.html comp-c-htmlman html
+./usr/share/man/html3/resize_term.html comp-c-htmlman html
./usr/share/man/html3/resizeterm.html comp-c-htmlman html
./usr/share/man/html3/resolver.html comp-c-htmlman html
./usr/share/man/html3/rewind.html comp-c-htmlman html
@@ -21499,6 +21503,7 @@
./usr/share/man/man3/is_keypad.3 comp-c-man .man
./usr/share/man/man3/is_leaveok.3 comp-c-man .man
./usr/share/man/man3/is_linetouched.3 comp-c-man .man
+./usr/share/man/man3/is_term_resized.3 comp-c-man .man
./usr/share/man/man3/is_wintouched.3 comp-c-man .man
./usr/share/man/man3/isalnum.3 comp-c-man .man
./usr/share/man/man3/isalpha.3 comp-c-man .man
@@ -23297,6 +23302,7 @@
./usr/share/man/man3/reset_prog_mode.3 comp-c-man .man
./usr/share/man/man3/reset_shell_mode.3 comp-c-man .man
./usr/share/man/man3/resetty.3 comp-c-man .man
+./usr/share/man/man3/resize_term.3 comp-c-man .man
./usr/share/man/man3/resizeterm.3 comp-c-man .man
./usr/share/man/man3/resolver.3 comp-c-man .man
./usr/share/man/man3/rewind.3 comp-c-man .man
diff -r 16fe592222fb -r cfd5764d1482 lib/libcurses/Makefile
--- a/lib/libcurses/Makefile Thu Jan 05 20:37:06 2017 +0000
+++ b/lib/libcurses/Makefile Thu Jan 05 21:25:17 2017 +0000
@@ -1,4 +1,4 @@
-# $NetBSD: Makefile,v 1.79 2017/01/05 20:31:37 roy Exp $
+# $NetBSD: Makefile,v 1.80 2017/01/05 21:25:17 roy Exp $
# @(#)Makefile 8.2 (Berkeley) 1/2/94
.include <bsd.own.mk>
@@ -103,6 +103,7 @@
curses_tty.3 intrflush.3 \
curses_pad.3 is_keypad.3 \
curses_refresh.3 is_leaveok.3 curses_touch.3 is_linetouched.3 \
+ curses_screen.3 is_term_resized.3 \
curses_touch.3 is_wintouched.3 curses_screen.3 isendwin.3 \
curses_keyname.3 keyname.3 \
curses_input.3 keypad.3 curses_tty.3 killchar.3 \
@@ -140,7 +141,8 @@
curses_fileio.3 putwin.3 curses_tty.3 qiflush.3 \
curses_tty.3 raw.3 curses_refresh.3 refresh.3 \
curses_tty.3 reset_prog_mode.3 curses_tty.3 reset_shell_mode.3 \
- curses_tty.3 resetty.3 curses_screen.3 resizeterm.3 \
+ curses_tty.3 resetty.3 \
+ curses_screen.3 resizeterm.3 curses_screen.3 resize_term.3 \
curses_tty.3 savetty.3 curses_scanw.3 scanw.3 \
curses_scroll.3 scrl.3 curses_scroll.3 scroll.3 \
curses_scroll.3 scrollok.3 curses_scroll.3 setscrreg.3 \
diff -r 16fe592222fb -r cfd5764d1482 lib/libcurses/curses.3
--- a/lib/libcurses/curses.3 Thu Jan 05 20:37:06 2017 +0000
+++ b/lib/libcurses/curses.3 Thu Jan 05 21:25:17 2017 +0000
@@ -1,4 +1,4 @@
-.\" $NetBSD: curses.3,v 1.64 2017/01/05 20:31:37 roy Exp $
+.\" $NetBSD: curses.3,v 1.65 2017/01/05 21:25:18 roy Exp $
.\"
.\" Copyright (c) 1985, 1991, 1993
.\" The Regents of the University of California. All rights reserved.
@@ -215,6 +215,7 @@
.It reset_prog_mode Ta Xr curses_tty 3
.It reset_shell_mode Ta Xr curses_tty 3
.It resetty Ta Xr curses_tty 3
+.It resize_term Ta Xr curses_screen 3
.It resizeterm Ta Xr curses_screen 3
.It savetty Ta Xr curses_tty 3
.It scanw Ta Xr curses_scanw 3
diff -r 16fe592222fb -r cfd5764d1482 lib/libcurses/curses.h
--- a/lib/libcurses/curses.h Thu Jan 05 20:37:06 2017 +0000
+++ b/lib/libcurses/curses.h Thu Jan 05 21:25:17 2017 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: curses.h,v 1.116 2017/01/05 20:31:37 roy Exp $ */
+/* $NetBSD: curses.h,v 1.117 2017/01/05 21:25:18 roy Exp $ */
/*
* Copyright (c) 1981, 1993, 1994
@@ -695,6 +695,7 @@
bool isendwin(void);
bool is_linetouched(WINDOW *, int);
bool is_wintouched(WINDOW *);
+bool is_term_resized(int, int);
int keyok(int, bool);
int keypad(WINDOW *, bool);
char *keyname(int);
@@ -744,6 +745,7 @@
int reset_shell_mode(void);
int resetty(void);
int resizeterm(int, int);
+int resize_term(int, int);
int savetty(void);
int scanw(const char *, ...) __scanflike(1, 2);
int scroll(WINDOW *);
diff -r 16fe592222fb -r cfd5764d1482 lib/libcurses/curses_screen.3
--- a/lib/libcurses/curses_screen.3 Thu Jan 05 20:37:06 2017 +0000
+++ b/lib/libcurses/curses_screen.3 Thu Jan 05 21:25:17 2017 +0000
@@ -1,4 +1,4 @@
-.\" $NetBSD: curses_screen.3,v 1.20 2017/01/05 20:31:37 roy Exp $
+.\" $NetBSD: curses_screen.3,v 1.21 2017/01/05 21:25:18 roy Exp $
.\"
.\" Copyright (c) 2002
.\" Brett Lymn (blymn%NetBSD.org@localhost, brett_lymn%yahoo.com.au@localhost)
@@ -43,6 +43,8 @@
.Nm endwin ,
.Nm initscr ,
.Nm isendwin ,
+.Nm is_term_resized ,
+.Nm resize_term ,
.Nm resizeterm ,
.Nm setterm ,
.Nm set_tabsize
@@ -67,6 +69,10 @@
.Fn initscr "void"
.Ft bool
.Fn isendwin "void"
+.Ft bool
+.Fn is_term_resized "int lines" "int cols"
+.Fn int
+.Fn resize_term "int lines" "int cols"
.Ft int
.Fn resizeterm "int lines" "int cols"
.Ft int
@@ -155,8 +161,8 @@
screen has occurred since the last call to
.Fn endwin .
.Pp
-The size of the screen may be changed by calling
-.Fn resizeterm
+The size of the screen may be changed by calling
+.Fn resize_term
with the updated number of lines and columns.
This will resize the curses internal data structures to accommodate the
changed terminal geometry.
@@ -167,7 +173,15 @@
windows and any of their subwindows will be resized to fit the new
screen size.
The application must redraw the screen after a call to
-.Fn resizeterm .
+.Fn resize_term .
+The
+.Fn resizeterm
+function is a wrapper for
+.Fn resize_term
+and adjusts other structure data that handles window dimensions.
+The
+.Fn is_term_resized
+function tests if either of the above functions need to be called.
.Pp
The
.Fn setterm
@@ -252,8 +266,11 @@
extension to the Curses library and was added in
.Nx 1.6 .
The
+.Fn is_term_resized ,
+.Fn resize_term
+and
.Fn set_tabsize
-function is a
+functions are
.Em ncurses
extension to the Curses library and was added in
.Nx 8.0 .
diff -r 16fe592222fb -r cfd5764d1482 lib/libcurses/resize.c
--- a/lib/libcurses/resize.c Thu Jan 05 20:37:06 2017 +0000
+++ b/lib/libcurses/resize.c Thu Jan 05 21:25:17 2017 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: resize.c,v 1.20 2009/07/22 16:57:15 roy Exp $ */
+/* $NetBSD: resize.c,v 1.21 2017/01/05 21:25:18 roy Exp $ */
/*
* Copyright (c) 2001
@@ -40,7 +40,7 @@
#if 0
static char sccsid[] = "@(#)resize.c blymn 2001/08/26";
#else
-__RCSID("$NetBSD: resize.c,v 1.20 2009/07/22 16:57:15 roy Exp $");
+__RCSID("$NetBSD: resize.c,v 1.21 2017/01/05 21:25:18 roy Exp $");
#endif
#endif /* not lint */
@@ -136,19 +136,56 @@
}
/*
+ * is_term_resized --
+ * Return true if the given dimensions do not match the
+ * internal structures.
+ */
+bool
+is_term_resized(int nlines, int ncols)
+{
+
+ return (nlines > 0 && ncols > 0 && (nlines != LINES || ncols != COLS));
+}
+
+/*
* resizeterm --
* Resize the terminal window, resizing the dependent windows.
+ * Handles internal book-keeping.
+ */
+int
+resizeterm(int nlines, int ncols)
+{
+ int result;
+
+#ifdef DEBUG
+ __CTRACE(__CTRACE_WINDOW, "resizeterm: (%d, %d)\n", nlines, ncols);
+#endif
+
+ if (!is_term_resized(nlines, ncols))
+ return OK;
+
+ result = resizeterm(nlines, ncols);
+ clearok(curscr, TRUE);
+ return result;
+}
+
+/*
+ * resize_term --
+ * Resize the terminal window, resizing the dependent windows.
*/
int
-resizeterm(int nlines, int ncols)
+resize_term(int nlines, int ncols)
{
WINDOW *win;
struct __winlist *list;
#ifdef DEBUG
- __CTRACE(__CTRACE_WINDOW, "resizeterm: (%d, %d)\n", nlines, ncols);
+ __CTRACE(__CTRACE_WINDOW, "resize_term: (%d, %d)\n", nlines, ncols);
#endif
+ if (!is_term_resized(nlines, ncols))
+ return OK;
+
if (__resizeterm(curscr, nlines, ncols) == ERR)
return ERR;
if (__resizeterm(__virtscr, nlines, ncols) == ERR)
@@ -167,7 +204,6 @@
__swflags(win);
}
- wrefresh(curscr);
return OK;
}
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