1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438
|
/* This is the upper layer of the splitvt terminal driver.
It contains the termcap stuff and the output routines that
actually write to the terminal.
*/
#include <curses.h>
#include <term.h>
#include <stdio.h>
#include <string.h>
#include "splitvt.h"
#include "video.h"
#include "terminal.h"
/* This is a long list of termcap capabilities that can be used by splitvt */
typedef struct {
char *name;
char *value;
int required;
} capability;
static capability capabilities[] = {
#define cs 0
{ "cs", NULL, 0 }, /* Scrolling regions: VITAL! */
#define cm 1
{ "cm", NULL, 1 }, /* Cursor move to coordinates */
#define sc 2
{ "sc", NULL, 0 }, /* Save cursor position */
#define rc 3
{ "rc", NULL, 0 }, /* Restore cursor position */
#define sr 4
{ "sr", NULL, 1 }, /* Reverse scroll 1 line */
#define sf 5
{ "sf", "\n", 1 }, /* Forward scroll 1 line */
#define UP 6
{ "UP", NULL, 0 }, /* Move cursor up n lines */
#define up 7
{ "up", NULL, 0 }, /* Move cursor up 1 line */
#define DO 8
{ "DO", NULL, 0 }, /* Move cursor down n lines */
#define do 9
{ "do", NULL, 0 }, /* Move cursor down 1 line */
#define RI 10
{ "RI", NULL, 0 }, /* Move cursor right n characters */
#define nd 11
{ "nd", NULL, 0 }, /* Move cursor right 1 character */
#define LE 12
{ "LE", NULL, 0 }, /* Move cursor left n characters */
#define le 13
{ "le", "\b", 0 }, /* Move cursor left 1 character */
#define cr 14
{ "cr", "\r", 1 }, /* Carriage return */
#define DC 15
{ "DC", NULL, 0 }, /* Delete n characters */
#define dc 16
{ "dc", NULL, 0 }, /* Delete character */
#define DL 17
{ "DL", NULL, 0 }, /* Delete n lines */
#define dl 18
{ "dl", NULL, 0 }, /* Delete line */
#define ce 19
{ "ce", NULL, 1 }, /* Clear to end of line */
#define so 20
{ "so", NULL, 0 }, /* Start standout text mode */
#define se 21
{ "se", NULL, 0 }, /* End standout text mode */
#define us 22
{ "us", NULL, 0 }, /* Start underline text mode */
#define ue 23
{ "ue", NULL, 0 }, /* End underline text mode */
#define md 24
{ "md", NULL, 0 }, /* Start bold text mode */
#define mb 25
{ "mb", NULL, 0 }, /* Start blinking text mode */
#define mr 26
{ "mr", NULL, 0 }, /* Start reverse text mode */
#define mh 27
{ "mh", NULL, 0 }, /* Start dim text mode */
#define me 28
{ "me", NULL, 0 }, /* Clear all text attributes */
#define ZF 29
{ "ZF", NULL, 0 }, /* Set wide (132 column) mode */
#define IC 30
{ "IC", NULL, 0 }, /* Insert character */
{ NULL, NULL, 0 }
};
#ifdef TERMCAP /* Termcap versions of the screen update routines */
/* areas and variables used to get termcap information */
extern int tgetent();
extern char *tgetstr();
static char termcap_entry[2048]; /* termcap entry for the terminal */
static char termcap_area[2048]; /* Static buffer for capabilities */
static char *tp=termcap_area; /* Used in tgetent() calls */
static char *terminal_type; /* type of terminal */
char *termcap_init(termtype)
char *termtype;
{
static char errmesg[BUFSIZ];
char *value;
int i;
/* Determine the terminal type and get the termcap entry */
if ( tgetent(termcap_entry, termtype) < 1 ) {
sprintf(errmesg,
"Can't find termcap entry for terminal type \"%s\"", terminal_type);
return(errmesg);
}
/* Make sure this terminal has all the required capabilities */
for ( i=0; capabilities[i].name; ++i ) {
if ( (value=tgetstr(capabilities[i].name, &tp)) == NULL ) {
if ( !capabilities[i].value &&
capabilities[i].required ) {
sprintf(errmesg,
"Your terminal lacks the %s termcap capability.",
capabilities[i].name);
return(errmesg);
}
} else
capabilities[i].value=value;
}
return(NULL);
}
int outc(c) int c; { return putchar(c); }
void vt_rows_cols(termtype, rows, cols)
char *termtype;
int *rows;
int *cols;
{
if ( rows ) {
if ( (*rows=tgetnum("li")) <= 0 )
*rows=24;
}
if ( cols ) {
if ( (*cols=tgetnum("co")) <= 0 )
*cols=80;
}
}
void vt_bold(on)
int on;
{
if ( on && capabilities[md].value )
tputs(capabilities[md].value, 1, outc);
else
printf("\033[%sm", (on ? "1" : "22"));
}
void vt_underline(on)
int on;
{
if ( capabilities[on ? us : ue].value )
tputs(capabilities[on ? us : ue].value, 1, outc);
else
printf("\033[%sm", on ? "4" : "24");
}
void vt_blink(on)
int on;
{
if ( on && capabilities[mb].value )
tputs(capabilities[mb].value, 1, outc);
else
printf("\033[%sm", on ? "5" : "25");
}
void vt_reverse(on)
int on;
{
if ( on && capabilities[mr].value )
tputs(capabilities[mr].value, 1, outc);
else
printf("\033[%sm", on ? "7" : "27");
}
void vt_resetattr()
{
if ( capabilities[me].value )
tputs(capabilities[me].value, 1, outc);
else
printf("\033[m");
}
void vt_widemode(on)
int on;
{
if ( on && capabilities[ZF].value )
tputs(capabilities[ZF].value, 1, outc);
else
printf("\033[?3%c", on ? 'h' : 'l');
}
void vt_savecursor()
{
if ( capabilities[sc].value )
tputs(capabilities[sc].value, 1, outc);
else
printf("\0337");
}
void vt_restcursor()
{
if ( capabilities[rc].value )
tputs(capabilities[rc].value, 1, outc);
else
printf("\0338");
}
#else
char *termcap_init(termtype)
char *termtype;
{
return(NULL);
}
void vt_rows_cols(termtype, rows, cols)
char *termtype;
int *rows;
int *cols;
{
if ( cols ) {
if ( strcmp("vt100-w", termtype) == 0 )
{ /* vt100-wide terminal (132 columns) */
*cols=132;
} else
*cols = 80;
}
if ( rows )
*rows = 24;
}
void vt_bold(on)
int on;
{
printf("\033[%sm", (on ? "1" : "22"));
}
void vt_underline(on)
int on;
{
printf("\033[%sm", on ? "4" : "24");
}
void vt_blink(on)
int on;
{
printf("\033[%sm", on ? "5" : "25");
}
void vt_reverse(on)
int on;
{
printf("\033[%sm", on ? "7" : "27");
}
void vt_resetattr()
{
printf("\033[m");
}
void vt_widemode(on)
int on;
{
printf("\033[?3%c", on ? 'h' : 'l');
}
void vt_savecursor()
{
printf("\0337");
}
void vt_restcursor()
{
printf("\0338");
}
#endif
/* vt100 compatible versions of the screen update routines */
char *vt_initterm(terminal_type, rows, cols)
char *terminal_type;
int *rows;
int *cols;
{
extern char *getenv();
static char *termtype=NULL, *error=NULL;
if ( (termtype=getenv("TERM")) == NULL )
return("Terminal type must be set to vt100");
if ( strncmp(termtype, "vt10x", 4) != 0 &&
strncmp(termtype, "xterm", 5) != 0 &&
/* A vt10x emulation detector --> */ ! vttest() )
return("Terminal type must be set to vt100");
if ( strlen(termtype) > 256 )
return("Terminal type too long");
/* Get extra (possibly) capabilities from termcap */
if ( (error=termcap_init(termtype)) != NULL )
return(error);
vt_rows_cols(termtype, rows, cols);
if ( terminal_type )
strcpy(terminal_type, termtype);
return(NULL);
}
void vt_bell()
{
printf("\007");
}
void vt_goto(row, col)
int row, col;
{
printf("\033[%d;%dH", row, col);
}
void vt_up(numrows)
int numrows;
{
printf("\033[%dA", numrows);
}
void vt_down(numrows)
int numrows;
{
printf("\033[%dB", numrows);
}
void vt_right(numcols)
int numcols;
{
printf("\033[%dC", numcols);
}
void vt_left(numcols)
int numcols;
{
printf("\033[%dD", numcols);
}
void vt_clrscr()
{
printf("\033[2J");
}
void vt_clreos()
{
printf("\033[J");
}
void vt_clrbgs()
{
printf("\033[1J");
}
void vt_clrline()
{
printf("\033[2K");
}
void vt_clreol()
{
printf("\033[K");
}
void vt_clrbgl()
{
printf("\033[1K");
}
void vt_delunder(num)
int num;
{
printf("\033[%dP", num);
}
void vt_delline(num)
int num;
{
printf("\033[%dM", num);
}
void vt_insline(num)
int num;
{
printf("\033[%dL", num);
}
void vt_setattr(textattr)
int textattr;
{
vt_resetattr();
if ( textattr&BOLD )
vt_bold(1);
if ( textattr&UNDERLINE )
vt_underline(1);
if ( textattr&BLINK )
vt_blink(1);
if ( textattr&REVERSE )
vt_reverse(1);
}
void vt_setfg(color)
int color;
{
printf("\033[%dm", color+30);
}
void vt_setbg(color)
int color;
{
printf("\033[%dm", color+40);
}
void vt_altcharset(charset, type)
int charset;
int type;
{
switch (type) {
case UK_CHARSET:
printf("\033%cA", (charset == G0 ? '(' : ')'));
break;
case US_CHARSET:
printf("\033%cB", (charset == G0 ? '(' : ')'));
break;
case GRAPHICS:
printf("\033%c0", (charset == G0 ? '(' : ')'));
break;
default: break;
}
}
void vt_setscroll(upper, lower)
int upper, lower;
{
if ( !upper && !lower ) {
printf("\033[r");
} else {
printf("\033[%d;%dr", upper, lower);
}
}
void vt_revscroll()
{
printf("\033M");
}
void vt_keystate(application)
int application;
{
/* Set and reset the numeric keypad and arrowkeys */
if ( application )
printf("\033=\033[?1h");
else
printf("\033>\033[?1l");
}
void vt_insertchar(numcols)
{
printf("\033[%d@", numcols);
}
void vt_reset()
{
printf("\033c");
}
void vt_update()
{
fflush(stdout);
}
|