window/cmd7.c

   1 /*      $NetBSD: cmd7.c,v 1.4 1997/11/21 08:35:54 lukem 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. All advertising materials mentioning features or use of this software
  19  *    must display the following acknowledgement:
  20  *      This product includes software developed by the University of
  21  *      California, Berkeley and its contributors.
  22  * 4. Neither the name of the University nor the names of its contributors
  23  *    may be used to endorse or promote products derived from this software
  24  *    without specific prior written permission.
  25  *
  26  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  27  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  28  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  29  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  30  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  31  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  32  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  33  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  34  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  35  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  36  * SUCH DAMAGE.
  37  */
  38
  39 #include <sys/cdefs.h>
  40 #ifndef lint
  41 #if 0
  42 static char sccsid[] = "@(#)cmd7.c      8.1 (Berkeley) 6/6/93";
  43 #else
  44 __RCSID("$NetBSD: cmd7.c,v 1.4 1997/11/21 08:35:54 lukem Exp $");
  45 #endif
  46 #endif /* not lint */
  47
  48 #include <stdlib.h>
  49 #include <unistd.h>
  50 #include "defs.h"
  51 #include "window_string.h"
  52
  53 void    unyank __P((void));
  54 void    yank_highlight __P((int, int, int, int));
  55 void    yank_highlight_line __P((int, int, int));
  56 void    yank_line __P((int, int, int));
  57
  58 /*
  59  * Window size.
  60  */
  61 void
  62 c_size(w)
  63         struct ww *w;
  64 {
  65         int col, row;
  66
  67         if (!terse)
  68                 wwputs("New window size (lower right corner): ", cmdwin);
  69         col = MIN(w->ww_w.r, wwncol) - 1;
  70         row = MIN(w->ww_w.b, wwnrow) - 1;
  71         wwadd(boxwin, framewin->ww_back);
  72         for (;;) {
  73                 wwbox(boxwin, w->ww_w.t - 1, w->ww_w.l - 1,
  74                         row - w->ww_w.t + 3, col - w->ww_w.l + 3);
  75                 wwsetcursor(row, col);
  76                 while (wwpeekc() < 0)
  77                         wwiomux();
  78                 switch (getpos(&row, &col, w->ww_w.t, w->ww_w.l,
  79                         wwnrow - 1, wwncol - 1)) {
  80                 case 3:
  81                         wwunbox(boxwin);
  82                         wwdelete(boxwin);
  83                         return;
  84                 case 2:
  85                         wwunbox(boxwin);
  86                         break;
  87                 case 1:
  88                         wwunbox(boxwin);
  89                 case 0:
  90                         continue;
  91                 }
  92                 break;
  93         }
  94         wwdelete(boxwin);
  95         if (!terse)
  96                 wwputc('\n', cmdwin);
  97         wwcurtowin(cmdwin);
  98         sizewin(w, row - w->ww_w.t + 1, col - w->ww_w.l + 1);
  99 }
 100
 101 /*
 102  * Yank and put
 103  */
 104
 105 struct yb {
 106         char *line;
 107         int length;
 108         struct yb *link;
 109 };
 110 struct yb *yb_head, *yb_tail;
 111
 112 void
 113 c_yank()
 114 {
 115         struct ww *w = selwin;
 116         int col1, row1;
 117         int col2, row2;
 118         int r, c;
 119
 120         if (!terse)
 121                 wwputs("Yank starting position: ", cmdwin);
 122         wwcursor(w, 0);
 123         row1 = w->ww_cur.r;
 124         col1 = w->ww_cur.c;
 125         for (;;) {
 126                 wwsetcursor(row1, col1);
 127                 while (wwpeekc() < 0)
 128                         wwiomux();
 129                 switch (getpos(&row1, &col1, w->ww_i.t, w->ww_i.l,
 130                                w->ww_i.b - 1, w->ww_i.r - 1)) {
 131                 case 3:
 132                         goto out;
 133                 case 2:
 134                         break;
 135                 case 1:
 136                 case 0:
 137                         continue;
 138                 }
 139                 break;
 140         }
 141         if (!terse)
 142                 wwputs("\nYank ending position: ", cmdwin);
 143         row2 = row1;
 144         col2 = col1;
 145         for (;;) {
 146                 wwsetcursor(row2, col2);
 147                 while (wwpeekc() < 0)
 148                         wwiomux();
 149                 r = row2;
 150                 c = col2;
 151                 switch (getpos(&row2, &col2, w->ww_i.t, w->ww_i.l,
 152                                w->ww_i.b - 1, w->ww_i.r - 1)) {
 153                 case 3:
 154                         yank_highlight(row1, col1, r, c);
 155                         goto out;
 156                 case 2:
 157                         break;
 158                 case 1:
 159                         yank_highlight(row1, col1, r, c);
 160                         yank_highlight(row1, col1, row2, col2);
 161                 case 0:
 162                         continue;
 163                 }
 164                 break;
 165         }
 166         if (row2 < row1 || (row2 == row1 && col2 < col1)) {
 167                 r = row1;
 168                 c = col1;
 169                 row1 = row2;
 170                 col1 = col2;
 171                 row2 = r;
 172                 col2 = c;
 173         }
 174         unyank();
 175         c = col1;
 176         for (r = row1; r < row2; r++) {
 177                 yank_line(r, c, w->ww_b.r);
 178                 c = w->ww_b.l;
 179         }
 180         yank_line(r, c, col2);
 181         yank_highlight(row1, col1, row2, col2);
 182         if (!terse)
 183                 wwputc('\n', cmdwin);
 184 out:
 185         wwcursor(w, 1);
 186 }
 187
 188 void
 189 yank_highlight(row1, col1, row2, col2)
 190         int row1, col1, row2, col2;
 191 {
 192         struct ww *w = selwin;
 193         int r, c;
 194
 195         if ((wwavailmodes & WWM_REV) == 0)
 196                 return;
 197         if (row2 < row1 || (row2 == row1 && col2 < col1)) {
 198                 r = row1;
 199                 c = col1;
 200                 row1 = row2;
 201                 col1 = col2;
 202                 row2 = r;
 203                 col2 = c;
 204         }
 205         c = col1;
 206         for (r = row1; r < row2; r++) {
 207                 yank_highlight_line(r, c, w->ww_b.r);
 208                 c = w->ww_b.l;
 209         }
 210         yank_highlight_line(r, c, col2);
 211 }
 212
 213 void
 214 yank_highlight_line(r, c, cend)
 215         int r, c, cend;
 216 {
 217         struct ww *w = selwin;
 218         char *win;
 219
 220         if (r < w->ww_i.t || r >= w->ww_i.b)
 221                 return;
 222         if (c < w->ww_i.l)
 223                 c = w->ww_i.l;
 224         if (cend >= w->ww_i.r)
 225                 cend = w->ww_i.r;
 226         for (win = w->ww_win[r] + c; c < cend; c++, win++) {
 227                 *win ^= WWM_REV;
 228                 if (wwsmap[r][c] == w->ww_index) {
 229                         if (*win == 0)
 230                                 w->ww_nvis[r]++;
 231                         else if (*win == WWM_REV)
 232                                 w->ww_nvis[r]--;
 233                         wwns[r][c].c_m ^= WWM_REV;
 234                         wwtouched[r] |= WWU_TOUCHED;
 235                 }
 236         }
 237 }
 238
 239 void
 240 unyank()
 241 {
 242         struct yb *yp, *yq;
 243
 244         for (yp = yb_head; yp; yp = yq) {
 245                 yq = yp->link;
 246                 str_free(yp->line);
 247                 free((char *) yp);
 248         }
 249         yb_head = yb_tail = 0;
 250 }
 251
 252 void
 253 yank_line(r, c, cend)
 254         int r, c, cend;
 255 {
 256         struct yb *yp;
 257         int nl = 0;
 258         int n;
 259         union ww_char *bp;
 260         char *cp;
 261
 262         if (c == cend)
 263                 return;
 264         if ((yp = (struct yb *) malloc(sizeof *yp)) == 0)
 265                 return;
 266         yp->link = 0;
 267         nl = cend == selwin->ww_b.r;
 268         bp = selwin->ww_buf[r];
 269         for (cend--; cend >= c; cend--)
 270                 if (bp[cend].c_c != ' ')
 271                         break;
 272         yp->length = n = cend - c + 1;
 273         if (nl)
 274                 yp->length++;
 275         yp->line = str_alloc(yp->length + 1);
 276         for (bp += c, cp = yp->line; --n >= 0;)
 277                 *cp++ = bp++->c_c;
 278         if (nl)
 279                 *cp++ = '\n';
 280         *cp = 0;
 281         if (yb_head)
 282                 yb_tail = yb_tail->link = yp;
 283         else
 284                 yb_head = yb_tail = yp;
 285 }
 286
 287 void
 288 c_put()
 289 {
 290         struct yb *yp;
 291
 292         for (yp = yb_head; yp; yp = yp->link)
 293                 (void) write(selwin->ww_pty, yp->line, yp->length);
 294 }