1 /* 2 * Copyright (c) 1983, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * This code is derived from software contributed to Berkeley by 6 * Edward Wang at The University of California, Berkeley. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. All advertising materials mentioning features or use of this software 17 * must display the following acknowledgement: 18 * This product includes software developed by the University of 19 * California, Berkeley and its contributors. 20 * 4. Neither the name of the University nor the names of its contributors 21 * may be used to endorse or promote products derived from this software 22 * without specific prior written permission. 23 * 24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 34 * SUCH DAMAGE. 35 * 36 * @(#)cmd5.c 8.1 (Berkeley) 6/6/93 37 * $FreeBSD: src/usr.bin/window/cmd5.c,v 1.1.1.1.14.1 2001/05/17 09:45:00 obrien Exp $ 38 * $DragonFly: src/usr.bin/window/cmd5.c,v 1.3 2005/04/15 17:55:29 drhodus Exp $ 39 */ 40 41 #include "defs.h" 42 43 /* 44 * Window movement. 45 */ 46 47 c_move(w) 48 struct ww *w; 49 { 50 int col, row; 51 int mincol, minrow; 52 int maxcol, maxrow; 53 int curcol, currow; 54 55 if (!terse) 56 wwputs("New window position: ", cmdwin); 57 col = w->ww_w.l; 58 row = w->ww_w.t; 59 wwadd(boxwin, framewin->ww_back); 60 for (;;) { 61 wwbox(boxwin, row - 1, col - 1, w->ww_w.nr + 2, w->ww_w.nc + 2); 62 getminmax(row, w->ww_w.nr, 1, wwnrow, 63 &currow, &minrow, &maxrow); 64 getminmax(col, w->ww_w.nc, 0, wwncol, 65 &curcol, &mincol, &maxcol); 66 wwsetcursor(currow, curcol); 67 while (wwpeekc() < 0) 68 wwiomux(); 69 switch (getpos(&row, &col, minrow, mincol, maxrow, maxcol)) { 70 case 3: 71 wwunbox(boxwin); 72 wwdelete(boxwin); 73 return; 74 case 2: 75 wwunbox(boxwin); 76 break; 77 case 1: 78 wwunbox(boxwin); 79 case 0: 80 continue; 81 } 82 break; 83 } 84 wwdelete(boxwin); 85 if (!terse) 86 wwputc('\n', cmdwin); 87 wwcurtowin(cmdwin); 88 movewin(w, row, col); 89 } 90 91 movewin(w, row, col) 92 struct ww *w; 93 { 94 struct ww *back = w->ww_back; 95 96 w->ww_alt.t = w->ww_w.t; 97 w->ww_alt.l = w->ww_w.l; 98 wwdelete(w); 99 wwmove(w, row, col); 100 wwadd(w, back); 101 reframe(); 102 } 103 104 /* 105 * Weird stufff, don't ask. 106 */ 107 getminmax(x, n, a, b, curx, minx, maxx) 108 register x, n, a, b; 109 int *curx, *minx, *maxx; 110 { 111 if (x < 0) 112 *curx = x + n - 1; 113 else 114 *curx = x; 115 116 if (x <= a) 117 *minx = 1 - n; 118 else if (x <= b - n) 119 *minx = a; 120 else 121 *minx = b - n; 122 123 if (x >= b - n) 124 *maxx = b - 1; 125 else if (x >= a) 126 *maxx = b - n; 127 else 128 *maxx = a; 129 } 130