usr.bin/window/cmd7.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[] = "@(#)cmd7.c      8.1 (Berkeley) 6/6/93";
  39 static char rcsid[] =
  40   "$FreeBSD$";
  41 #endif /* not lint */
  42
  43 #include <stdlib.h>
  44 #include "defs.h"
  45 #include "mystring.h"
  46
  47 /*
  48  * Window size.
  49  */
  50
  51 c_size(w)
  52 register struct ww *w;
  53 {
  54         int col, row;
  55
  56         if (!terse)
  57                 wwputs("New window size (lower right corner): ", cmdwin);
  58         col = MIN(w->ww_w.r, wwncol) - 1;
  59         row = MIN(w->ww_w.b, wwnrow) - 1;
  60         wwadd(boxwin, framewin->ww_back);
  61         for (;;) {
  62                 wwbox(boxwin, w->ww_w.t - 1, w->ww_w.l - 1,
  63                         row - w->ww_w.t + 3, col - w->ww_w.l + 3);
  64                 wwsetcursor(row, col);
  65                 while (wwpeekc() < 0)
  66                         wwiomux();
  67                 switch (getpos(&row, &col, w->ww_w.t, w->ww_w.l,
  68                         wwnrow - 1, wwncol - 1)) {
  69                 case 3:
  70                         wwunbox(boxwin);
  71                         wwdelete(boxwin);
  72                         return;
  73                 case 2:
  74                         wwunbox(boxwin);
  75                         break;
  76                 case 1:
  77                         wwunbox(boxwin);
  78                 case 0:
  79                         continue;
  80                 }
  81                 break;
  82         }
  83         wwdelete(boxwin);
  84         if (!terse)
  85                 wwputc('\n', cmdwin);
  86         wwcurtowin(cmdwin);
  87         sizewin(w, row - w->ww_w.t + 1, col - w->ww_w.l + 1);
  88 }
  89
  90 /*
  91  * Yank and put
  92  */
  93
  94 struct yb {
  95         char *line;
  96         int length;
  97         struct yb *link;
  98 };
  99 struct yb *yb_head, *yb_tail;
 100
 101 c_yank()
 102 {
 103         struct ww *w = selwin;
 104         int col1, row1;
 105         int col2, row2;
 106         int r, c;
 107
 108         if (!terse)
 109                 wwputs("Yank starting position: ", cmdwin);
 110         wwcursor(w, 0);
 111         row1 = w->ww_cur.r;
 112         col1 = w->ww_cur.c;
 113         for (;;) {
 114                 wwsetcursor(row1, col1);
 115                 while (wwpeekc() < 0)
 116                         wwiomux();
 117                 switch (getpos(&row1, &col1, w->ww_i.t, w->ww_i.l,
 118                                w->ww_i.b - 1, w->ww_i.r - 1)) {
 119                 case 3:
 120                         goto out;
 121                 case 2:
 122                         break;
 123                 case 1:
 124                 case 0:
 125                         continue;
 126                 }
 127                 break;
 128         }
 129         if (!terse)
 130                 wwputs("\nYank ending position: ", cmdwin);
 131         row2 = row1;
 132         col2 = col1;
 133         for (;;) {
 134                 wwsetcursor(row2, col2);
 135                 while (wwpeekc() < 0)
 136                         wwiomux();
 137                 r = row2;
 138                 c = col2;
 139                 switch (getpos(&row2, &col2, w->ww_i.t, w->ww_i.l,
 140                                w->ww_i.b - 1, w->ww_i.r - 1)) {
 141                 case 3:
 142                         yank_highlight(row1, col1, r, c);
 143                         goto out;
 144                 case 2:
 145                         break;
 146                 case 1:
 147                         yank_highlight(row1, col1, r, c);
 148                         yank_highlight(row1, col1, row2, col2);
 149                 case 0:
 150                         continue;
 151                 }
 152                 break;
 153         }
 154         if (row2 < row1 || row2 == row1 && col2 < col1) {
 155                 r = row1;
 156                 c = col1;
 157                 row1 = row2;
 158                 col1 = col2;
 159                 row2 = r;
 160                 col2 = c;
 161         }
 162         unyank();
 163         c = col1;
 164         for (r = row1; r < row2; r++) {
 165                 yank_line(r, c, w->ww_b.r);
 166                 c = w->ww_b.l;
 167         }
 168         yank_line(r, c, col2);
 169         yank_highlight(row1, col1, row2, col2);
 170         if (!terse)
 171                 wwputc('\n', cmdwin);
 172 out:
 173         wwcursor(w, 1);
 174 }
 175
 176 yank_highlight(row1, col1, row2, col2)
 177 {
 178         struct ww *w = selwin;
 179         int r, c;
 180
 181         if ((wwavailmodes & WWM_REV) == 0)
 182                 return;
 183         if (row2 < row1 || row2 == row1 && col2 < col1) {
 184                 r = row1;
 185                 c = col1;
 186                 row1 = row2;
 187                 col1 = col2;
 188                 row2 = r;
 189                 col2 = c;
 190         }
 191         c = col1;
 192         for (r = row1; r < row2; r++) {
 193                 yank_highlight_line(r, c, w->ww_b.r);
 194                 c = w->ww_b.l;
 195         }
 196         yank_highlight_line(r, c, col2);
 197 }
 198
 199 yank_highlight_line(r, c, cend)
 200 {
 201         struct ww *w = selwin;
 202         char *win;
 203
 204         if (r < w->ww_i.t || r >= w->ww_i.b)
 205                 return;
 206         if (c < w->ww_i.l)
 207                 c = w->ww_i.l;
 208         if (cend >= w->ww_i.r)
 209                 cend = w->ww_i.r;
 210         for (win = w->ww_win[r] + c; c < cend; c++, win++) {
 211                 *win ^= WWM_REV;
 212                 if (wwsmap[r][c] == w->ww_index) {
 213                         if (*win == 0)
 214                                 w->ww_nvis[r]++;
 215                         else if (*win == WWM_REV)
 216                                 w->ww_nvis[r]--;
 217                         wwns[r][c].c_m ^= WWM_REV;
 218                         wwtouched[r] |= WWU_TOUCHED;
 219                 }
 220         }
 221 }
 222
 223 unyank()
 224 {
 225         struct yb *yp, *yq;
 226
 227         for (yp = yb_head; yp; yp = yq) {
 228                 yq = yp->link;
 229                 str_free(yp->line);
 230                 free((char *) yp);
 231         }
 232         yb_head = yb_tail = 0;
 233 }
 234
 235 yank_line(r, c, cend)
 236 {
 237         struct yb *yp;
 238         int nl = 0;
 239         int n;
 240         union ww_char *bp;
 241         char *cp;
 242
 243         if (c == cend)
 244                 return;
 245         if ((yp = (struct yb *) malloc(sizeof *yp)) == 0)
 246                 return;
 247         yp->link = 0;
 248         nl = cend == selwin->ww_b.r;
 249         bp = selwin->ww_buf[r];
 250         for (cend--; cend >= c; cend--)
 251                 if (bp[cend].c_c != ' ')
 252                         break;
 253         yp->length = n = cend - c + 1;
 254         if (nl)
 255                 yp->length++;
 256         yp->line = str_alloc(yp->length + 1);
 257         for (bp += c, cp = yp->line; --n >= 0;)
 258                 *cp++ = bp++->c_c;
 259         if (nl)
 260                 *cp++ = '\n';
 261         *cp = 0;
 262         if (yb_head)
 263                 yb_tail = yb_tail->link = yp;
 264         else
 265                 yb_head = yb_tail = yp;
 266 }
 267
 268 c_put()
 269 {
 270         struct yb *yp;
 271
 272         for (yp = yb_head; yp; yp = yp->link)
 273                 (void) write(selwin->ww_pty, yp->line, yp->length);
 274 }