lib/libcurses/move.c

   1 /*      $NetBSD: move.c,v 1.17 2010/02/23 19:48:26 drochner Exp $       */
   2
   3 /*
   4  * Copyright (c) 1981, 1993, 1994
   5  *      The Regents of the University of California.  All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  * 2. Redistributions in binary form must reproduce the above copyright
  13  *    notice, this list of conditions and the following disclaimer in the
  14  *    documentation and/or other materials provided with the distribution.
  15  * 3. Neither the name of the University nor the names of its contributors
  16  *    may be used to endorse or promote products derived from this software
  17  *    without specific prior written permission.
  18  *
  19  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  20  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  21  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  22  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  23  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  24  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  25  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  26  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  27  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  28  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  29  * SUCH DAMAGE.
  30  */
  31
  32 #include <sys/cdefs.h>
  33 #ifndef lint
  34 #if 0
  35 static char sccsid[] = "@(#)move.c      8.2 (Berkeley) 5/4/94";
  36 #else
  37 __RCSID("$NetBSD: move.c,v 1.17 2010/02/23 19:48:26 drochner Exp $");
  38 #endif
  39 #endif                          /* not lint */
  40
  41 #include "curses.h"
  42 #include "curses_private.h"
  43
  44 #ifndef _CURSES_USE_MACROS
  45 /*
  46  * move --
  47  *      Moves the cursor to the given point on stdscr.
  48  */
  49 int
  50 move(int y, int x)
  51 {
  52         return wmove(stdscr, y, x);
  53 }
  54
  55 #endif
  56
  57 /*
  58  * wmove --
  59  *      Moves the cursor to the given point.
  60  */
  61 int
  62 wmove(WINDOW *win, int y, int x)
  63 {
  64
  65 #ifdef DEBUG
  66         __CTRACE(__CTRACE_MISC, "wmove: (%d, %d)\n", y, x);
  67 #endif
  68         if (x < 0 || y < 0)
  69                 return (ERR);
  70         if (x >= win->maxx || y >= win->maxy)
  71                 return (ERR);
  72         win->curx = x;
  73         win->alines[win->cury]->flags &= ~__ISPASTEOL;
  74         win->cury = y;
  75         win->alines[y]->flags &= ~__ISPASTEOL;
  76         return (OK);
  77 }
  78
  79 void
  80 wcursyncup(WINDOW *win)
  81 {
  82
  83         while (win->orig) {
  84                 wmove(win->orig, win->cury + win->begy - win->orig->begy,
  85                         win->curx + win->begx - win->orig->begx);
  86                 win = win->orig;
  87         }
  88 }