usr.bin/window/cmd7.c

   1 /*      $NetBSD: cmd7.c,v 1.8 2006/05/02 22:30:25 christos 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[] = "@(#)cmd7.c      8.1 (Berkeley) 6/6/93";
  39 #else
  40 __RCSID("$NetBSD: cmd7.c,v 1.8 2006/05/02 22:30:25 christos Exp $");
  41 #endif
  42 #endif /* not lint */
  43
  44 #include <stdlib.h>
  45 #include <unistd.h>
  46 #include "defs.h"
  47 #include "window_string.h"
  48
  49 void    unyank(void);
  50 void    yank_highlight(int, int, int, int);
  51 void    yank_highlight_line(int, int, int);
  52 void    yank_line(int, int, int);
  53
  54 /*
  55  * Window size.
  56  */
  57 void
  58 c_size(struct ww *w)
  59 {
  60         int col, row;
  61
  62         if (!terse)
  63                 wwputs("New window size (lower right corner): ", cmdwin);
  64         col = MIN(w->ww_w.r, wwncol) - 1;
  65         row = MIN(w->ww_w.b, wwnrow) - 1;
  66         wwadd(boxwin, framewin->ww_back);
  67         for (;;) {
  68                 wwbox(boxwin, w->ww_w.t - 1, w->ww_w.l - 1,
  69                         row - w->ww_w.t + 3, col - w->ww_w.l + 3);
  70                 wwsetcursor(row, col);
  71                 while (wwpeekc() < 0)
  72                         wwiomux();
  73                 switch (getpos(&row, &col, w->ww_w.t, w->ww_w.l,
  74                         wwnrow - 1, wwncol - 1)) {
  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         sizewin(w, row - w->ww_w.t + 1, col - w->ww_w.l + 1);
  94 }
  95
  96 /*
  97  * Yank and put
  98  */
  99
 100 struct yb {
 101         char *line;
 102         int length;
 103         struct yb *link;
 104 };
 105 struct yb *yb_head, *yb_tail;
 106
 107 void
 108 c_yank(void)
 109 {
 110         struct ww *w = selwin;
 111         int col1, row1;
 112         int col2, row2;
 113         int r, c;
 114
 115         if (!terse)
 116                 wwputs("Yank starting position: ", cmdwin);
 117         wwcursor(w, 0);
 118         row1 = w->ww_cur.r;
 119         col1 = w->ww_cur.c;
 120         for (;;) {
 121                 wwsetcursor(row1, col1);
 122                 while (wwpeekc() < 0)
 123                         wwiomux();
 124                 switch (getpos(&row1, &col1, w->ww_i.t, w->ww_i.l,
 125                                w->ww_i.b - 1, w->ww_i.r - 1)) {
 126                 case 3:
 127                         goto out;
 128                 case 2:
 129                         break;
 130                 case 1:
 131                 case 0:
 132                         continue;
 133                 }
 134                 break;
 135         }
 136         if (!terse)
 137                 wwputs("\nYank ending position: ", cmdwin);
 138         row2 = row1;
 139         col2 = col1;
 140         for (;;) {
 141                 wwsetcursor(row2, col2);
 142                 while (wwpeekc() < 0)
 143                         wwiomux();
 144                 r = row2;
 145                 c = col2;
 146                 switch (getpos(&row2, &col2, w->ww_i.t, w->ww_i.l,
 147                                w->ww_i.b - 1, w->ww_i.r - 1)) {
 148                 case 3:
 149                         yank_highlight(row1, col1, r, c);
 150                         goto out;
 151                 case 2:
 152                         break;
 153                 case 1:
 154                         yank_highlight(row1, col1, r, c);
 155                         yank_highlight(row1, col1, row2, col2);
 156                 case 0:
 157                         continue;
 158                 }
 159                 break;
 160         }
 161         if (row2 < row1 || (row2 == row1 && col2 < col1)) {
 162                 r = row1;
 163                 c = col1;
 164                 row1 = row2;
 165                 col1 = col2;
 166                 row2 = r;
 167                 col2 = c;
 168         }
 169         unyank();
 170         c = col1;
 171         for (r = row1; r < row2; r++) {
 172                 yank_line(r, c, w->ww_b.r);
 173                 c = w->ww_b.l;
 174         }
 175         yank_line(r, c, col2);
 176         yank_highlight(row1, col1, row2, col2);
 177         if (!terse)
 178                 wwputc('\n', cmdwin);
 179 out:
 180         wwcursor(w, 1);
 181 }
 182
 183 void
 184 yank_highlight(int row1, int col1, int row2, int col2)
 185 {
 186         struct ww *w = selwin;
 187         int r, c;
 188
 189         if ((wwavailmodes & WWM_REV) == 0)
 190                 return;
 191         if (row2 < row1 || (row2 == row1 && col2 < col1)) {
 192                 r = row1;
 193                 c = col1;
 194                 row1 = row2;
 195                 col1 = col2;
 196                 row2 = r;
 197                 col2 = c;
 198         }
 199         c = col1;
 200         for (r = row1; r < row2; r++) {
 201                 yank_highlight_line(r, c, w->ww_b.r);
 202                 c = w->ww_b.l;
 203         }
 204         yank_highlight_line(r, c, col2);
 205 }
 206
 207 void
 208 yank_highlight_line(int r, int c, int cend)
 209 {
 210         struct ww *w = selwin;
 211         char *win;
 212
 213         if (r < w->ww_i.t || r >= w->ww_i.b)
 214                 return;
 215         if (c < w->ww_i.l)
 216                 c = w->ww_i.l;
 217         if (cend >= w->ww_i.r)
 218                 cend = w->ww_i.r;
 219         for (win = w->ww_win[r] + c; c < cend; c++, win++) {
 220                 *win ^= WWM_REV;
 221                 if (wwsmap[r][c] == w->ww_index) {
 222                         if (*win == 0)
 223                                 w->ww_nvis[r]++;
 224                         else if (*win == WWM_REV)
 225                                 w->ww_nvis[r]--;
 226                         wwns[r][c].c_m ^= WWM_REV;
 227                         wwtouched[r] |= WWU_TOUCHED;
 228                 }
 229         }
 230 }
 231
 232 void
 233 unyank(void)
 234 {
 235         struct yb *yp, *yq;
 236
 237         for (yp = yb_head; yp; yp = yq) {
 238                 yq = yp->link;
 239                 str_free(yp->line);
 240                 free((char *) yp);
 241         }
 242         yb_head = yb_tail = 0;
 243 }
 244
 245 void
 246 yank_line(int r, int c, int cend)
 247 {
 248         struct yb *yp;
 249         int nl = 0;
 250         int n;
 251         union ww_char *bp;
 252         char *cp;
 253
 254         if (c == cend)
 255                 return;
 256         if ((yp = (struct yb *) malloc(sizeof *yp)) == 0)
 257                 return;
 258         yp->link = 0;
 259         nl = cend == selwin->ww_b.r;
 260         bp = selwin->ww_buf[r];
 261         for (cend--; cend >= c; cend--)
 262                 if (bp[cend].c_c != ' ')
 263                         break;
 264         yp->length = n = cend - c + 1;
 265         if (nl)
 266                 yp->length++;
 267         if ((yp->line = str_alloc(yp->length + 1)) == NULL) {
 268                 free(yp);
 269                 return;
 270         }
 271         for (bp += c, cp = yp->line; --n >= 0;)
 272                 *cp++ = bp++->c_c;
 273         if (nl)
 274                 *cp++ = '\n';
 275         *cp = 0;
 276         if (yb_head)
 277                 yb_tail = yb_tail->link = yp;
 278         else
 279                 yb_head = yb_tail = yp;
 280 }
 281
 282 void
 283 c_put(void)
 284 {
 285         struct yb *yp;
 286
 287         for (yp = yb_head; yp; yp = yp->link)
 288                 (void) write(selwin->ww_pty, yp->line, yp->length);
 289 }