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-rw-r--r--contrib/ncurses/ncurses/base/lib_scroll.c150
1 files changed, 0 insertions, 150 deletions
diff --git a/contrib/ncurses/ncurses/base/lib_scroll.c b/contrib/ncurses/ncurses/base/lib_scroll.c
deleted file mode 100644
index ac85bd55ea1d..000000000000
--- a/contrib/ncurses/ncurses/base/lib_scroll.c
+++ /dev/null
@@ -1,150 +0,0 @@
-/****************************************************************************
- * Copyright (c) 1998-2004,2006 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: Thomas E. Dickey 1996-2003 *
- * and: 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("$Id: lib_scroll.c,v 1.26 2006/10/14 20:46:08 tom Exp $")
-
-NCURSES_EXPORT(void)
-_nc_scroll_window(WINDOW *win,
- int const n,
- NCURSES_SIZE_T const top,
- NCURSES_SIZE_T const bottom,
- NCURSES_CH_T blank)
-{
- int limit;
- int line;
- int j;
- size_t to_copy = (size_t) (sizeof(NCURSES_CH_T) * (win->_maxx + 1));
-
- TR(TRACE_MOVE, ("_nc_scroll_window(%p, %d, %ld, %ld)",
- win, n, (long) top, (long) bottom));
-
- if (top < 0
- || bottom < top
- || bottom > win->_maxy) {
- TR(TRACE_MOVE, ("nothing to scroll"));
- return;
- }
-
- /*
- * 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) {
- limit = top - n;
- for (line = bottom; line >= limit && line >= 0; line--) {
- TR(TRACE_MOVE, ("...copying %d to %d", line + 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 < limit && line <= win->_maxy; line++) {
- TR(TRACE_MOVE, ("...filling %d", 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) {
- limit = bottom - n;
- for (line = top; line <= limit && line <= win->_maxy; 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 > limit && line >= 0; 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);
-
- if_WIDEC({
- if (WINDOW_EXT(win, addch_used) != 0) {
- int next = WINDOW_EXT(win, addch_y) + n;
- if (next < 0 || next > win->_maxy) {
- TR(TRACE_VIRTPUT,
- ("Alert discarded multibyte on scroll"));
- WINDOW_EXT(win, addch_y) = 0;
- } else {
- TR(TRACE_VIRTPUT, ("scrolled working position to %d,%d",
- WINDOW_EXT(win, addch_y),
- WINDOW_EXT(win, addch_x)));
- WINDOW_EXT(win, addch_y) = next;
- }
- }
- })
-}
-
-NCURSES_EXPORT(int)
-wscrl(WINDOW *win, int n)
-{
- T((T_CALLED("wscrl(%p,%d)"), win, n));
-
- if (!win || !win->_scroll) {
- TR(TRACE_MOVE, ("...scrollok is false"));
- returnCode(ERR);
- }
-
- if (n != 0) {
- _nc_scroll_window(win, n, win->_regtop, win->_regbottom, win->_nc_bkgd);
- _nc_synchook(win);
- }
- returnCode(OK);
-}