projects / unix-history / blame
| Commit | Line | Data |
|---|---|---|
| 8b28dacd KA |
1 | # include "curses.ext" |
| 2 | ||
| 3 | /* | |
| 4 | * This routine adds the character to the current position | |
| 5 | * | |
| 6 | * %G% (Berkeley) @(#)addch.c 1.1 | |
| 7 | */ | |
| 8 | waddch(win, c) | |
| 9 | reg WINDOW *win; | |
| 10 | char c; | |
| 11 | { | |
| 12 | reg int x, y; | |
| 13 | ||
| 14 | x = win->_curx; | |
| 15 | y = win->_cury; | |
| 16 | # ifdef FULLDEBUG | |
| 17 | fprintf(outf, "ADDCH('%c') at (%d, %d)\n", c, y, x); | |
| 18 | # endif | |
| 19 | if (y >= win->_maxy || x >= win->_maxx || y < 0 || x < 0) | |
| 20 | return ERR; | |
| 21 | switch (c) { | |
| 22 | case '\t': | |
| 23 | { | |
| 24 | reg int newx; | |
| 25 | ||
| 26 | --x; | |
| 27 | for (newx = x + (8 - (x & 07)) + 1; x <= newx; x++) | |
| 28 | if (waddch(win, ' ') == ERR) | |
| 29 | return ERR; | |
| 30 | return OK; | |
| 31 | } | |
| 32 | default: | |
| 33 | # ifdef FULLDEBUG | |
| 34 | fprintf(outf, "ADDCH: 1: y = %d, x = %d, firstch = %d, lastch = %d\n", y, x, win->_firstch[y], win->_lastch[y]); | |
| 35 | # endif | |
| 36 | if (win->_flags & _STANDOUT) | |
| 37 | c |= _STANDOUT; | |
| 38 | if (win->_y[y][x] != c) { | |
| 39 | if (win->_firstch[y] == _NOCHANGE) | |
| 40 | win->_firstch[y] = win->_lastch[y] = x; | |
| 41 | else if (x < win->_firstch[y]) | |
| 42 | win->_firstch[y] = x; | |
| 43 | else if (x > win->_lastch[y]) | |
| 44 | win->_lastch[y] = x; | |
| 45 | } | |
| 46 | win->_y[y][x++] = c; | |
| 47 | if (x >= win->_maxx) { | |
| 48 | newline: | |
| 49 | x = 0; | |
| 50 | nonewline: | |
| 51 | if (++y + 1 == win->_maxy) | |
| 52 | if (win->_scroll) { | |
| 53 | wrefresh(win); | |
| 54 | scroll(win); | |
| 55 | --y; | |
| 56 | } | |
| 57 | else | |
| 58 | return ERR; | |
| 59 | } | |
| 60 | # ifdef FULLDEBUG | |
| 61 | fprintf(outf, "ADDCH: 2: y = %d, x = %d, firstch = %d, lastch = %d\n", y, x, win->_firstch[y], win->_lastch[y]); | |
| 62 | # endif | |
| 63 | break; | |
| 64 | case '\n': | |
| 65 | wclrtoeol(win); | |
| 66 | if (NONL) | |
| 67 | goto nonewline; | |
| 68 | else | |
| 69 | goto newline; | |
| 70 | case '\r': | |
| 71 | x = 0; | |
| 72 | break; | |
| 73 | case '\b': | |
| 74 | if (--x < 0) | |
| 75 | x = 0; | |
| 76 | break; | |
| 77 | } | |
| 78 | win->_curx = x; | |
| 79 | win->_cury = y; | |
| 80 | return OK; | |
| 81 | } |