projects / unix-history / blame
| Commit | Line | Data |
|---|---|---|
| 6a03cf08 GM |
1 | /* |
| 2 | * Copyright (c) 1987 Regents of the University of California. | |
| 2f14f200 KB |
3 | * All rights reserved. |
| 4 | * | |
| 5 | * Redistribution and use in source and binary forms are permitted | |
| 6 | * provided that this notice is preserved and that due credit is given | |
| 7 | * to the University of California at Berkeley. The name of the University | |
| 8 | * may not be used to endorse or promote products derived from this | |
| 9 | * software without specific prior written permission. This software | |
| 10 | * is provided ``as is'' without express or implied warranty. | |
| 6a03cf08 GM |
11 | */ |
| 12 | ||
| 13 | #ifndef lint | |
| 2f14f200 KB |
14 | static char sccsid[] = "@(#)addbytes.c 5.2 (Berkeley) %G%"; |
| 15 | #endif /* not lint */ | |
| 6a03cf08 GM |
16 | |
| 17 | # include "curses.ext" | |
| 18 | ||
| 19 | /* | |
| 20 | * This routine adds the character to the current position | |
| 21 | * | |
| 22 | */ | |
| 23 | waddbytes(win, bytes, count) | |
| 24 | reg WINDOW *win; | |
| 25 | reg char *bytes; | |
| 26 | reg int count; | |
| 27 | { | |
| 28 | #define SYNCH_OUT() {win->_cury = y; win->_curx = x;} | |
| 29 | #define SYNCH_IN() {y = win->_cury; x = win->_curx;} | |
| 30 | reg int x, y; | |
| 31 | reg int newx; | |
| 32 | ||
| 33 | SYNCH_IN(); | |
| 34 | # ifdef FULLDEBUG | |
| 35 | fprintf(outf, "ADDBYTES('%c') at (%d, %d)\n", c, y, x); | |
| 36 | # endif | |
| 37 | while (count--) { | |
| 38 | register int c; | |
| 39 | static char blanks[] = " "; | |
| 40 | ||
| 41 | c = *bytes++; | |
| 42 | switch (c) { | |
| 43 | case '\t': | |
| 44 | SYNCH_IN(); | |
| 45 | if (waddbytes(win, blanks, 8-(x%8)) == ERR) { | |
| 46 | return ERR; | |
| 47 | } | |
| 48 | SYNCH_OUT(); | |
| 49 | break; | |
| 50 | ||
| 51 | default: | |
| 52 | # ifdef FULLDEBUG | |
| 53 | fprintf(outf, "ADDBYTES: 1: y = %d, x = %d, firstch = %d, lastch = %d\n", y, x, win->_firstch[y], win->_lastch[y]); | |
| 54 | # endif | |
| 55 | if (win->_flags & _STANDOUT) | |
| 56 | c |= _STANDOUT; | |
| 57 | { | |
| 58 | # ifdef FULLDEBUG | |
| 59 | fprintf(outf, "ADDBYTES(%0.2o, %d, %d)\n", win, y, x); | |
| 60 | # endif | |
| 61 | if (win->_y[y][x] != c) { | |
| 62 | newx = x + win->_ch_off; | |
| 63 | if (win->_firstch[y] == _NOCHANGE) { | |
| 64 | win->_firstch[y] = | |
| 65 | win->_lastch[y] = newx; | |
| 66 | } else if (newx < win->_firstch[y]) | |
| 67 | win->_firstch[y] = newx; | |
| 68 | else if (newx > win->_lastch[y]) | |
| 69 | win->_lastch[y] = newx; | |
| 70 | # ifdef FULLDEBUG | |
| 71 | fprintf(outf, "ADDBYTES: change gives f/l: %d/%d [%d/%d]\n", | |
| 72 | win->_firstch[y], win->_lastch[y], | |
| 73 | win->_firstch[y] - win->_ch_off, | |
| 74 | win->_lastch[y] - win->_ch_off); | |
| 75 | # endif | |
| 76 | } | |
| 77 | } | |
| 78 | win->_y[y][x++] = c; | |
| 79 | if (x >= win->_maxx) { | |
| 80 | x = 0; | |
| 81 | newline: | |
| 82 | if (++y >= win->_maxy) | |
| 83 | if (win->_scroll) { | |
| 84 | SYNCH_OUT(); | |
| 85 | scroll(win); | |
| 86 | SYNCH_IN(); | |
| 87 | --y; | |
| 88 | } | |
| 89 | else | |
| 90 | return ERR; | |
| 91 | } | |
| 92 | # ifdef FULLDEBUG | |
| 93 | fprintf(outf, "ADDBYTES: 2: y = %d, x = %d, firstch = %d, lastch = %d\n", y, x, win->_firstch[y], win->_lastch[y]); | |
| 94 | # endif | |
| 95 | break; | |
| 96 | case '\n': | |
| 97 | SYNCH_OUT(); | |
| 98 | wclrtoeol(win); | |
| 99 | SYNCH_IN(); | |
| 100 | if (!NONL) | |
| 101 | x = 0; | |
| 102 | goto newline; | |
| 103 | case '\r': | |
| 104 | x = 0; | |
| 105 | break; | |
| 106 | case '\b': | |
| 107 | if (--x < 0) | |
| 108 | x = 0; | |
| 109 | break; | |
| 110 | } | |
| 111 | } | |
| 112 | SYNCH_OUT(); | |
| 113 | return OK; | |
| 114 | } |