1 /* $NetBSD: cmd5.c,v 1.7 2003/08/07 11:17:23 agc Exp $ */ 2 3 /* 4 * Copyright (c) 1983, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * This code is derived from software contributed to Berkeley by 8 * Edward Wang at The University of California, Berkeley. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. Neither the name of the University nor the names of its contributors 19 * may be used to endorse or promote products derived from this software 20 * without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32 * SUCH DAMAGE. 33 */ 34 35 #include <sys/cdefs.h> 36 #ifndef lint 37 #if 0 38 static char sccsid[] = "@(#)cmd5.c 8.1 (Berkeley) 6/6/93"; 39 #else 40 __RCSID("$NetBSD: cmd5.c,v 1.7 2003/08/07 11:17:23 agc Exp $"); 41 #endif 42 #endif /* not lint */ 43 44 #include "defs.h" 45 46 /* 47 * Window movement. 48 */ 49 50 void getminmax(int, int, int, int, int *, int *, int *); 51 52 void 53 c_move(struct ww *w) 54 { 55 int col, row; 56 int mincol, minrow; 57 int maxcol, maxrow; 58 int curcol, currow; 59 60 if (!terse) 61 wwputs("New window position: ", cmdwin); 62 col = w->ww_w.l; 63 row = w->ww_w.t; 64 wwadd(boxwin, framewin->ww_back); 65 for (;;) { 66 wwbox(boxwin, row - 1, col - 1, w->ww_w.nr + 2, w->ww_w.nc + 2); 67 getminmax(row, w->ww_w.nr, 1, wwnrow, 68 &currow, &minrow, &maxrow); 69 getminmax(col, w->ww_w.nc, 0, wwncol, 70 &curcol, &mincol, &maxcol); 71 wwsetcursor(currow, curcol); 72 while (wwpeekc() < 0) 73 wwiomux(); 74 switch (getpos(&row, &col, minrow, mincol, maxrow, maxcol)) { 75 case 3: 76 wwunbox(boxwin); 77 wwdelete(boxwin); 78 return; 79 case 2: 80 wwunbox(boxwin); 81 break; 82 case 1: 83 wwunbox(boxwin); 84 case 0: 85 continue; 86 } 87 break; 88 } 89 wwdelete(boxwin); 90 if (!terse) 91 wwputc('\n', cmdwin); 92 wwcurtowin(cmdwin); 93 movewin(w, row, col); 94 } 95 96 void 97 movewin(struct ww *w, int row, int col) 98 { 99 struct ww *back = w->ww_back; 100 101 w->ww_alt.t = w->ww_w.t; 102 w->ww_alt.l = w->ww_w.l; 103 wwdelete(w); 104 wwmove(w, row, col); 105 wwadd(w, back); 106 reframe(); 107 } 108 109 /* 110 * Weird stufff, don't ask. 111 */ 112 void 113 getminmax(int x, int n, int a, int b, int *curx, int *minx, int *maxx) 114 { 115 if (x < 0) 116 *curx = x + n - 1; 117 else 118 *curx = x; 119 120 if (x <= a) 121 *minx = 1 - n; 122 else if (x <= b - n) 123 *minx = a; 124 else 125 *minx = b - n; 126 127 if (x >= b - n) 128 *maxx = b - 1; 129 else if (x >= a) 130 *maxx = b - n; 131 else 132 *maxx = a; 133 } 134