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authormillert <millert@openbsd.org>1999-01-18 19:06:44 +0000
committermillert <millert@openbsd.org>1999-01-18 19:06:44 +0000
commit92dd1ec0a89df25171bc5d61a3d95ea1a68cef0b (patch)
treeb9d1f7bc0ea12a6176e04e01a28222b0364a79ec /lib/libcurses/lib_scroll.c
parentupdates from ncurses-4.2-990116 (diff)
downloadwireguard-openbsd-92dd1ec0a89df25171bc5d61a3d95ea1a68cef0b.tar.xz
wireguard-openbsd-92dd1ec0a89df25171bc5d61a3d95ea1a68cef0b.zip
ncurses-4.2-990116
Diffstat (limited to 'lib/libcurses/lib_scroll.c')
-rw-r--r--lib/libcurses/lib_scroll.c120
1 files changed, 0 insertions, 120 deletions
diff --git a/lib/libcurses/lib_scroll.c b/lib/libcurses/lib_scroll.c
deleted file mode 100644
index 05ffed4402f..00000000000
--- a/lib/libcurses/lib_scroll.c
+++ /dev/null
@@ -1,120 +0,0 @@
-/* $OpenBSD: lib_scroll.c,v 1.4 1998/07/23 21:19:20 millert Exp $ */
-
-/****************************************************************************
- * Copyright (c) 1998 Free Software Foundation, Inc. *
- * *
- * Permission is hereby granted, free of charge, to any person obtaining a *
- * copy of this software and associated documentation files (the *
- * "Software"), to deal in the Software without restriction, including *
- * without limitation the rights to use, copy, modify, merge, publish, *
- * distribute, distribute with modifications, sublicense, and/or sell *
- * copies of the Software, and to permit persons to whom the Software is *
- * furnished to do so, subject to the following conditions: *
- * *
- * The above copyright notice and this permission notice shall be included *
- * in all copies or substantial portions of the Software. *
- * *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS *
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF *
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. *
- * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, *
- * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR *
- * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR *
- * THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
- * *
- * Except as contained in this notice, the name(s) of the above copyright *
- * holders shall not be used in advertising or otherwise to promote the *
- * sale, use or other dealings in this Software without prior written *
- * authorization. *
- ****************************************************************************/
-
-/****************************************************************************
- * Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995 *
- * and: Eric S. Raymond <esr@snark.thyrsus.com> *
- ****************************************************************************/
-
-
-
-/*
-** lib_scroll.c
-**
-** The routine wscrl(win, n).
-** positive n scroll the window up (ie. move lines down)
-** negative n scroll the window down (ie. move lines up)
-**
-*/
-
-#include <curses.priv.h>
-
-MODULE_ID("$From: lib_scroll.c,v 1.16 1998/02/11 12:13:55 tom Exp $")
-
-void _nc_scroll_window(WINDOW *win, int const n, short const top, short const bottom, chtype blank)
-{
-int line, j;
-size_t to_copy = (size_t)(sizeof(chtype) * (win->_maxx + 1));
-
- TR(TRACE_MOVE, ("_nc_scroll_window(%p, %d, %d, %d)", win, n, top,bottom));
-
- /*
- * This used to do a line-text pointer-shuffle instead of text copies.
- * That (a) doesn't work when the window is derived and doesn't have
- * its own storage, (b) doesn't save you a lot on modern machines
- * anyway. Your typical memcpy implementations are coded in
- * assembler using a tight BLT loop; for the size of copies we're
- * talking here, the total execution time is dominated by the one-time
- * setup cost. So there is no point in trying to be excessively
- * clever -- esr.
- */
-
- /* shift n lines downwards */
- if (n < 0) {
- for (line = bottom; line >= top-n; line--) {
- memcpy(win->_line[line].text,
- win->_line[line+n].text,
- to_copy);
- if_USE_SCROLL_HINTS(win->_line[line].oldindex = win->_line[line+n].oldindex);
- }
- for (line = top; line < top-n; line++) {
- for (j = 0; j <= win->_maxx; j ++)
- win->_line[line].text[j] = blank;
- if_USE_SCROLL_HINTS(win->_line[line].oldindex = _NEWINDEX);
- }
- }
-
- /* shift n lines upwards */
- if (n > 0) {
- for (line = top; line <= bottom-n; line++) {
- memcpy(win->_line[line].text,
- win->_line[line+n].text,
- to_copy);
- if_USE_SCROLL_HINTS(win->_line[line].oldindex = win->_line[line+n].oldindex);
- }
- for (line = bottom; line > bottom-n; line--) {
- for (j = 0; j <= win->_maxx; j ++)
- win->_line[line].text[j] = blank;
- if_USE_SCROLL_HINTS(win->_line[line].oldindex = _NEWINDEX);
- }
- }
- touchline(win, top, bottom-top+1);
-}
-
-int
-wscrl(WINDOW *win, int n)
-{
- T((T_CALLED("wscrl(%p,%d)"), win, n));
-
- if (!win || !win->_scroll)
- returnCode(ERR);
-
- if (n == 0)
- returnCode(OK);
-
- if ((n > (win->_regbottom - win->_regtop)) ||
- (-n > (win->_regbottom - win->_regtop)))
- returnCode(ERR);
-
- _nc_scroll_window(win, n, win->_regtop, win->_regbottom, _nc_background(win));
-
- _nc_synchook(win);
- returnCode(OK);
-}