usr.bin/window/cmd1.c

   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
  37 #ifndef lint
  38 static char sccsid[] = "@(#)cmd1.c      8.1 (Berkeley) 6/6/93";
  39 static char rcsid[] =
  40   "@(#)$FreeBSD$";
  41 #endif /* not lint */
  42
  43 #include "defs.h"
  44 #include "char.h"
  45
  46 c_window()
  47 {
  48         int col, row, xcol, xrow;
  49         int id;
  50
  51         if ((id = findid()) < 0)
  52                 return;
  53         if (!terse)
  54                 wwputs("New window (upper left corner): ", cmdwin);
  55         col = 0;
  56         row = 1;
  57         wwadd(boxwin, framewin->ww_back);
  58         for (;;) {
  59                 wwbox(boxwin, row - 1, col - 1, 3, 3);
  60                 wwsetcursor(row, col);
  61                 while (wwpeekc() < 0)
  62                         wwiomux();
  63                 switch (getpos(&row, &col, row > 1, 0,
  64                         wwnrow - 1, wwncol - 1)) {
  65                 case 3:
  66                         wwunbox(boxwin);
  67                         wwdelete(boxwin);
  68                         return;
  69                 case 2:
  70                         wwunbox(boxwin);
  71                         break;
  72                 case 1:
  73                         wwunbox(boxwin);
  74                 case 0:
  75                         continue;
  76                 }
  77                 break;
  78         }
  79         if (!terse)
  80                 wwputs("\nNew window (lower right corner): ", cmdwin);
  81         xcol = col;
  82         xrow = row;
  83         for (;;) {
  84                 wwbox(boxwin, row - 1, col - 1,
  85                         xrow - row + 3, xcol - col + 3);
  86                 wwsetcursor(xrow, xcol);
  87                 while (wwpeekc() < 0)
  88                         wwiomux();
  89                 switch (getpos(&xrow, &xcol, row, col, wwnrow - 1, wwncol - 1))
  90                 {
  91                 case 3:
  92                         wwunbox(boxwin);
  93                         wwdelete(boxwin);
  94                         return;
  95                 case 2:
  96                         wwunbox(boxwin);
  97                         break;
  98                 case 1:
  99                         wwunbox(boxwin);
 100                 case 0:
 101                         continue;
 102                 }
 103                 break;
 104         }
 105         wwdelete(boxwin);
 106         if (!terse)
 107                 wwputc('\n', cmdwin);
 108         wwcurtowin(cmdwin);
 109         (void) openwin(id, row, col, xrow-row+1, xcol-col+1, default_nline,
 110                 (char *) 0, 1, 1, default_shellfile, default_shell);
 111 }
 112
 113 getpos(row, col, minrow, mincol, maxrow, maxcol)
 114 register int *row, *col;
 115 int minrow, mincol;
 116 int maxrow, maxcol;
 117 {
 118         static int scount;
 119         int count;
 120         int c;
 121         int oldrow = *row, oldcol = *col;
 122
 123         while ((c = wwgetc()) >= 0) {
 124                 switch (c) {
 125                 case '0': case '1': case '2': case '3': case '4':
 126                 case '5': case '6': case '7': case '8': case '9':
 127                         scount = scount * 10 + c - '0';
 128                         continue;
 129                 }
 130                 count = scount ? scount : 1;
 131                 scount = 0;
 132                 switch (c) {
 133                 case 'h':
 134                         if ((*col -= count) < mincol)
 135                                 *col = mincol;
 136                         break;
 137                 case 'H':
 138                         *col = mincol;
 139                         break;
 140                 case 'l':
 141                         if ((*col += count) > maxcol)
 142                                 *col = maxcol;
 143                         break;
 144                 case 'L':
 145                         *col = maxcol;
 146                         break;
 147                 case 'j':
 148                         if ((*row += count) > maxrow)
 149                                 *row = maxrow;
 150                         break;
 151                 case 'J':
 152                         *row = maxrow;
 153                         break;
 154                 case 'k':
 155                         if ((*row -= count) < minrow)
 156                                 *row = minrow;
 157                         break;
 158                 case 'K':
 159                         *row = minrow;
 160                         break;
 161                 case ctrl('['):
 162                         if (!terse)
 163                                 wwputs("\nCancelled.  ", cmdwin);
 164                         return 3;
 165                 case '\r':
 166                         return 2;
 167                 default:
 168                         if (!terse)
 169                                 wwputs("\nType [hjklHJKL] to move, return to enter position, escape to cancel.", cmdwin);
 170                         wwbell();
 171                 }
 172         }
 173         return oldrow != *row || oldcol != *col;
 174 }