| 1 | #include <stdlib.h>
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| 2 | #include <termcap.h>
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| 3 | #include <sys/types.h>
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| 4 | #include <sys/ioctl.h>
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| 5 | #include <curses.h>
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| 6 | #include "curspriv.h"
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| 7 |
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| 8 | struct termios _orig_tty, _tty;
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| 9 | cursv _cursvar;
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| 10 |
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| 11 | WINDOW *stdscr, *curscr;
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| 12 | int LINES, COLS;
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| 13 | bool NONL;
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| 14 |
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| 15 | char termcap[1024]; /* termcap buffer */
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| 16 | char tc[200]; /* area to hold string capabilities */
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| 17 | char *ttytype; /* terminal type from env */
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| 18 | static char *arp; /* pointer for use in tgetstr */
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| 19 | char *cp; /* character pointer */
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| 20 |
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| 21 | char *cl; /* clear screen capability */
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| 22 | char *cm; /* cursor motion capability */
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| 23 | char *so; /* start standout capability */
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| 24 | char *se; /* end standout capability */
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| 25 | char *mr; /* start of reverse */
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| 26 | char *me; /* revert to normal */
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| 27 | char *mb; /* start of blink */
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| 28 | char *md; /* start of bold */
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| 29 | char *us; /* start of underscore */
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| 30 | char *ue; /* end of underscore */
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| 31 | char *vi; /* cursor invisible */
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| 32 | char *ve; /* cursor normal */
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| 33 | char *vs; /* cursor good visible */
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| 34 | char *as; /* alternative charset start */
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| 35 | char *ae; /* alternative charset end */
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| 36 | char *bl; /* ring the bell */
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| 37 | char *vb; /* visual bell */
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| 38 |
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| 39 | /* fatal - report error and die. Never returns */
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| 40 | void fatal(s)
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| 41 | char *s;
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| 42 | {
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| 43 | (void) fprintf(stderr, "curses: %s\n", s);
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| 44 | exit(1);
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| 45 | }
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| 46 |
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| 47 | /* Outc - call putchar, necessary because putchar is a macro. */
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| 48 | void outc(c)
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| 49 | int c;
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| 50 | {
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| 51 | putchar(c);
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| 52 | }
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| 53 |
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| 54 | /* Move cursor to r,c */
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| 55 | void poscur(r, c)
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| 56 | int r, c;
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| 57 | {
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| 58 | tputs(tgoto(cm, c, r), 1, outc);
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| 59 | }
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| 60 |
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| 61 | /* Clear the screen */
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| 62 | void clrscr()
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| 63 | {
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| 64 | tputs(cl, 1, outc);
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| 65 | }
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| 66 |
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| 67 | /* This are terminal independent characters which can be used in curses */
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| 68 |
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| 69 | unsigned int ACS_ULCORNER;
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| 70 | unsigned int ACS_LLCORNER;
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| 71 | unsigned int ACS_URCORNER;
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| 72 | unsigned int ACS_LRCORNER;
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| 73 | unsigned int ACS_RTEE;
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| 74 | unsigned int ACS_LTEE;
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| 75 | unsigned int ACS_BTEE;
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| 76 | unsigned int ACS_TTEE;
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| 77 | unsigned int ACS_HLINE;
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| 78 | unsigned int ACS_VLINE;
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| 79 | unsigned int ACS_PLUS;
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| 80 | unsigned int ACS_S1;
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| 81 | unsigned int ACS_S9;
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| 82 | unsigned int ACS_DIAMOND;
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| 83 | unsigned int ACS_CKBOARD;
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| 84 | unsigned int ACS_DEGREE;
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| 85 | unsigned int ACS_PLMINUS;
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| 86 | unsigned int ACS_BULLET;
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| 87 | unsigned int ACS_LARROW;
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| 88 | unsigned int ACS_RARROW;
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| 89 | unsigned int ACS_DARROW;
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| 90 | unsigned int ACS_UARROW;
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| 91 | unsigned int ACS_BOARD;
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| 92 | unsigned int ACS_LANTERN;
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| 93 | unsigned int ACS_BLOCK;
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| 94 |
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| 95 | /* These defines describe the full set of grafic block characters which
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| 96 | * can be defined via termcap.
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| 97 | */
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| 98 |
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| 99 | #define RIGHTARROW 0
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| 100 | #define LEFTARROW 1
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| 101 | #define DOWNARROW 2
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| 102 | #define UPARROW 3
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| 103 | #define FULLSQUARE 4
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| 104 | #define GREYSQUARE 5
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| 105 | #define EMPTYSQUARE 6
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| 106 | #define LATERN 7
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| 107 | #define DIAMOND 8
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| 108 | #define DEGREE 9
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| 109 | #define PLUSMINUS 10
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| 110 | #define DOWNRIGHT 11
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| 111 | #define UPRIGHT 12
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| 112 | #define UPLEFT 13
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| 113 | #define DOWNLEFT 14
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| 114 | #define CROSS 15
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| 115 | #define UPLINE 16
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| 116 | #define UPMIDLINE 17
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| 117 | #define MIDLINE 18
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| 118 | #define DOMIDLINE 19
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| 119 | #define DOWNLINE 20
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| 120 | #define TEELEFT 21
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| 121 | #define TEERIGHT 22
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| 122 | #define TEEHEAD 23
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| 123 | #define TEENORMAL 24
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| 124 | #define VERTLINE 25
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| 125 | #define PARAGRAPH 26
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| 126 |
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| 127 | unsigned int _cursgraftable[27] =
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| 128 | {
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| 129 | '>', '<', 'v', '^', '#', ':', ' ', '#', '+', '\'', '#', '+', '+',
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| 130 | '+', '+', '+', '-', ' ', '-', ' ', '_', '+', '+', '+', '+', '|'
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| 131 | };
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| 132 | char _cursident[28] = "+,.-0ahI`fgjklmnopqrstuvwx~";
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| 133 |
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| 134 | int setterm(type)
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| 135 | char *type;
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| 136 | {
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| 137 | unsigned char *ac;
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| 138 | int i;
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| 139 | #ifdef TIOCGWINSZ
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| 140 | struct winsize wsize;
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| 141 | #endif
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| 142 |
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| 143 | if (tgetent(termcap, type) != 1) return ERR;
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| 144 |
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| 145 | #ifdef TIOCGWINSZ
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| 146 | if (ioctl(0, TIOCGWINSZ, &wsize) == 0) {
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| 147 | LINES = wsize.ws_row != 0 ? wsize.ws_row : tgetnum("li");
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| 148 | COLS = wsize.ws_col != 0 ? wsize.ws_col : tgetnum("co");
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| 149 | } else {
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| 150 | #endif
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| 151 | LINES = tgetnum("li");
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| 152 | COLS = tgetnum("co");
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| 153 | #ifdef TIOCGWINSZ
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| 154 | }
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| 155 | #endif
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| 156 | arp = tc;
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| 157 | cl = tgetstr("cl", &arp);
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| 158 | so = tgetstr("so", &arp);
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| 159 | se = tgetstr("se", &arp);
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| 160 | cm = tgetstr("cm", &arp);
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| 161 | mr = tgetstr("mr", &arp);
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| 162 | me = tgetstr("me", &arp);
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| 163 | mb = tgetstr("mb", &arp);
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| 164 | md = tgetstr("md", &arp);
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| 165 | us = tgetstr("us", &arp);
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| 166 | ue = tgetstr("ue", &arp);
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| 167 | vi = tgetstr("vi", &arp);
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| 168 | ve = tgetstr("ve", &arp);
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| 169 | vs = tgetstr("vs", &arp);
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| 170 | as = tgetstr("as", &arp);
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| 171 | ae = tgetstr("ae", &arp);
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| 172 | ac = (unsigned char *) tgetstr("ac", &arp);
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| 173 | bl = tgetstr("bl", &arp);
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| 174 | vb = tgetstr("vb", &arp);
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| 175 |
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| 176 | if (ac) {
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| 177 | while (*ac) {
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| 178 | i = 0;
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| 179 | while (*ac != _cursident[i]) i++;
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| 180 | _cursgraftable[i] = *++ac | A_ALTCHARSET;
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| 181 | ac++;
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| 182 | }
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| 183 | }
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| 184 |
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| 185 | ACS_ULCORNER = _cursgraftable[UPLEFT];
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| 186 | ACS_LLCORNER = _cursgraftable[DOWNLEFT];
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| 187 | ACS_URCORNER = _cursgraftable[UPRIGHT];
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| 188 | ACS_LRCORNER = _cursgraftable[DOWNRIGHT];
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| 189 | ACS_RTEE = _cursgraftable[TEERIGHT];
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| 190 | ACS_LTEE = _cursgraftable[TEELEFT];
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| 191 | ACS_BTEE = _cursgraftable[TEEHEAD];
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| 192 | ACS_TTEE = _cursgraftable[TEENORMAL];
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| 193 | ACS_HLINE = _cursgraftable[MIDLINE];
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| 194 | ACS_VLINE = _cursgraftable[VERTLINE];
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| 195 | ACS_PLUS = _cursgraftable[CROSS];
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| 196 | ACS_S1 = _cursgraftable[UPLINE];
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| 197 | ACS_S9 = _cursgraftable[DOWNLINE];
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| 198 | ACS_DIAMOND = _cursgraftable[DIAMOND];
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| 199 | ACS_CKBOARD = _cursgraftable[GREYSQUARE];
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| 200 | ACS_DEGREE = _cursgraftable[DEGREE];
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| 201 | ACS_PLMINUS = _cursgraftable[PLUSMINUS];
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| 202 | ACS_BULLET = 'o'; /* where the hell is a bullet defined in
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| 203 | * termcap ??? */
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| 204 | ACS_LARROW = _cursgraftable[LEFTARROW];
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| 205 | ACS_RARROW = _cursgraftable[RIGHTARROW];
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| 206 | ACS_DARROW = _cursgraftable[DOWNARROW];
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| 207 | ACS_UARROW = _cursgraftable[UPARROW];
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| 208 | ACS_BOARD = _cursgraftable[EMPTYSQUARE];
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| 209 | ACS_LANTERN = _cursgraftable[LATERN];
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| 210 | ACS_BLOCK = _cursgraftable[FULLSQUARE];
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| 211 | /* Wow, I got it! */
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| 212 | return OK;
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| 213 | }
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| 214 |
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| 215 | void gettmode()
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| 216 | {
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| 217 | tcgetattr(0, &_orig_tty);
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| 218 | tcgetattr(0, &_tty);
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| 219 | _cursvar.echoit = (_tty.c_lflag & ECHO) != 0;
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| 220 | _cursvar.rawmode = (_tty.c_lflag & (ICANON|ISIG)) == 0;
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| 221 | _cursvar.cbrkmode = (_tty.c_lflag & (ICANON|ISIG)) == ISIG;
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| 222 | NONL = (_tty.c_iflag & ICRNL) != 0;
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| 223 | }
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