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hellisabove
2023-03-18 20:26:52 +02:00
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/*
* Program: Display routines
*
*
* Donn Cave
* Networks and Distributed Computing
* Computing and Communications
* University of Washington
* Administration Builiding, AG-44
* Seattle, Washington, 98195, USA
* Internet: donn@cac.washington.edu
*
* Please address all bugs and comments to "pine-bugs@cac.washington.edu"
*
*
* Pine and Pico are registered trademarks of the University of Washington.
* No commercial use of these trademarks may be made without prior written
* permission of the University of Washington.
*
* Pine, Pico, and Pilot software and its included text are Copyright
* 1989-2001 by the University of Washington.
*
* The full text of our legal notices is contained in the file called
* CPYRIGHT, included with this distribution.
*
*/
/*
* tinfo - substitute for tcap, on systems that have terminfo.
*/
#define termdef 1 /* don't define "term" external */
#if defined(USE_TERMINFO)
extern char *tigetstr ();
#define MARGIN 8
#define SCRSIZ 64
#define MROW 2
static int tinfomove PROTO((int, int));
static int tinfoeeol PROTO((void));
static int tinfoeeop PROTO((void));
static int tinfobeep PROTO((void));
static int tinforev PROTO((int));
static int tinfoopen PROTO((void));
static int tinfoterminalinfo PROTO((int));
static int tinfoclose PROTO((void));
static void setup_dflt_esc_seq PROTO((void));
static void tinfoinsert PROTO((int));
static void tinfodelete PROTO((void));
extern int tput();
/**
** Note: The tgoto calls should really be replaced by tparm calls for
** modern terminfo. tgoto(s, x, y) == tparm(s, y, x).
**/
int _tlines, _tcolumns;
char *_clearscreen, *_moveto, *_up, *_down, *_right, *_left,
*_setinverse, *_clearinverse,
*_setunderline, *_clearunderline,
*_setbold, *_clearallattr, /* there is no clear only bold! */
*_cleartoeoln, *_cleartoeos,
*_deleteline, /* delete line */
*_insertline, /* insert line */
*_scrollregion, /* define a scrolling region, vt100 */
*_insertchar, /* insert character, preferable to : */
*_startinsert, /* set insert mode and, */
*_endinsert, /* end insert mode */
*_deletechar, /* delete character */
*_startdelete, /* set delete mode and, */
*_enddelete, /* end delete mode */
*_scrolldown, /* scroll down */
*_scrollup, /* scroll up */
*_termcap_init, /* string to start termcap */
*_termcap_end, /* string to end termcap */
*_op, *_oc, *_setaf, *_setab, *_setf, *_setb, *_scp;
int _colors, _pairs, _bce;
char term_name[40];
TERM term = {
NROW-1,
NCOL,
MARGIN,
SCRSIZ,
MROW,
tinfoopen,
tinfoterminalinfo,
tinfoclose,
ttgetc,
ttputc,
ttflush,
tinfomove,
tinfoeeol,
tinfoeeop,
tinfobeep,
tinforev
};
/*
* Add default keypad sequences to the trie.
*/
static void
setup_dflt_esc_seq()
{
/*
* this is sort of a hack [no kidding], but it allows us to use
* the function keys on pc's running telnet
*/
/*
* UW-NDC/UCS vt10[02] application mode.
*/
kpinsert("\033OP", F1, 1);
kpinsert("\033OQ", F2, 1);
kpinsert("\033OR", F3, 1);
kpinsert("\033OS", F4, 1);
kpinsert("\033Op", F5, 1);
kpinsert("\033Oq", F6, 1);
kpinsert("\033Or", F7, 1);
kpinsert("\033Os", F8, 1);
kpinsert("\033Ot", F9, 1);
kpinsert("\033Ou", F10, 1);
kpinsert("\033Ov", F11, 1);
kpinsert("\033Ow", F12, 1);
/*
* DEC vt100, ANSI and cursor key mode.
*/
kpinsert("\033OA", KEY_UP, 1);
kpinsert("\033OB", KEY_DOWN, 1);
kpinsert("\033OC", KEY_RIGHT, 1);
kpinsert("\033OD", KEY_LEFT, 1);
/*
* special keypad functions
*/
kpinsert("\033[4J", KEY_PGUP, 1);
kpinsert("\033[3J", KEY_PGDN, 1);
kpinsert("\033[2J", KEY_HOME, 1);
kpinsert("\033[N", KEY_END, 1);
/*
* vt220?
*/
kpinsert("\033[5~", KEY_PGUP, 1);
kpinsert("\033[6~", KEY_PGDN, 1);
kpinsert("\033[1~", KEY_HOME, 1);
kpinsert("\033[4~", KEY_END, 1);
/*
* konsole, XTerm (XFree 4.x.x) keyboard setting
*/
kpinsert("\033[H", KEY_HOME, 1);
kpinsert("\033[F", KEY_END, 1);
/*
* gnome-terminal 2.6.0, don't know why it
* changed from 2.2.1
*/
kpinsert("\033OH", KEY_HOME, 1);
kpinsert("\033OF", KEY_END, 1);
/*
* "\033[2~" was common for KEY_HOME in a quick survey
* of terminals (though typically the Insert key).
* Teraterm 2.33 sends the following escape sequences,
* which is quite incompatible with everything
* else:
* Home: "\033[2~" End: "\033[5~" PgUp: "\033[3~"
* PgDn: "\033[6~"
* The best thing to do would be to fix TeraTerm
* keymappings or to tweak terminfo.
*/
/*
* ANSI mode.
*/
kpinsert("\033[=a", F1, 1);
kpinsert("\033[=b", F2, 1);
kpinsert("\033[=c", F3, 1);
kpinsert("\033[=d", F4, 1);
kpinsert("\033[=e", F5, 1);
kpinsert("\033[=f", F6, 1);
kpinsert("\033[=g", F7, 1);
kpinsert("\033[=h", F8, 1);
kpinsert("\033[=i", F9, 1);
kpinsert("\033[=j", F10, 1);
kpinsert("\033[=k", F11, 1);
kpinsert("\033[=l", F12, 1);
/*
* DEC vt100, ANSI and cursor key mode reset.
*/
kpinsert("\033[A", KEY_UP, 1);
kpinsert("\033[B", KEY_DOWN, 1);
kpinsert("\033[C", KEY_RIGHT, 1);
kpinsert("\033[D", KEY_LEFT, 1);
/*
* DEC vt52 mode.
*/
kpinsert("\033A", KEY_UP, 1);
kpinsert("\033B", KEY_DOWN, 1);
kpinsert("\033C", KEY_RIGHT, 1);
kpinsert("\033D", KEY_LEFT, 1);
/*
* DEC vt52 application keys, and some Zenith 19.
*/
kpinsert("\033?r", KEY_DOWN, 1);
kpinsert("\033?t", KEY_LEFT, 1);
kpinsert("\033?v", KEY_RIGHT, 1);
kpinsert("\033?x", KEY_UP, 1);
/*
* Sun Console sequences.
*/
kpinsert("\033[1", KEY_SWALLOW_Z, 1);
kpinsert("\033[215", KEY_SWAL_UP, 1);
kpinsert("\033[217", KEY_SWAL_LEFT, 1);
kpinsert("\033[219", KEY_SWAL_RIGHT, 1);
kpinsert("\033[221", KEY_SWAL_DOWN, 1);
/*
* Kermit App Prog Cmd, gobble until ESC \ (kermit should intercept this)
*/
kpinsert("\033_", KEY_KERMIT, 1);
/*
* Fake a control character.
*/
kpinsert("\033\033", KEY_DOUBLE_ESC, 1);
}
static int
tinfoterminalinfo(termcap_wins)
int termcap_wins;
{
char *_ku, *_kd, *_kl, *_kr,
*_kppu, *_kppd, *_kphome, *_kpend, *_kpdel,
*_kf1, *_kf2, *_kf3, *_kf4, *_kf5, *_kf6,
*_kf7, *_kf8, *_kf9, *_kf10, *_kf11, *_kf12;
char *ttnm;
if (Pmaster) {
/*
* setupterm() automatically retrieves the value
* of the TERM variable.
*/
int err;
ttnm = getenv("TERM");
if(!ttnm)
return(-1);
strcpy(term_name, ttnm);
setupterm (0, 1, &err);
if (err != 1) return(err-2);
}
else {
/*
* setupterm() issues a message and exits, if the
* terminfo data base is gone or the term type is
* unknown, if arg2 is 0.
*/
setupterm (0, 1, 0);
}
_clearscreen = tigetstr("clear");
_moveto = tigetstr("cup");
_up = tigetstr("cuu1");
_down = tigetstr("cud1");
_right = tigetstr("cuf1");
_left = tigetstr("cub1");
_setinverse = tigetstr("smso");
_clearinverse = tigetstr("rmso");
_setunderline = tigetstr("smul");
_clearunderline = tigetstr("rmul");
_setbold = tigetstr("bold");
_clearallattr = tigetstr("sgr0");
_cleartoeoln = tigetstr("el");
_cleartoeos = tigetstr("ed");
_deletechar = tigetstr("dch1");
_insertchar = tigetstr("ich1");
_startinsert = tigetstr("smir");
_endinsert = tigetstr("rmir");
_deleteline = tigetstr("dl1");
_insertline = tigetstr("il1");
_scrollregion = tigetstr("csr");
_scrolldown = tigetstr("ind");
_scrollup = tigetstr("ri");
_termcap_init = tigetstr("smcup");
_termcap_end = tigetstr("rmcup");
_startdelete = tigetstr("smdc");
_enddelete = tigetstr("rmdc");
_ku = tigetstr("kcuu1");
_kd = tigetstr("kcud1");
_kl = tigetstr("kcub1");
_kr = tigetstr("kcuf1");
_kppu = tigetstr("kpp");
_kppd = tigetstr("knp");
_kphome = tigetstr("khome");
_kpend = tigetstr("kend");
_kpdel = tigetstr("kdch1");
_kf1 = tigetstr("kf1");
_kf2 = tigetstr("kf2");
_kf3 = tigetstr("kf3");
_kf4 = tigetstr("kf4");
_kf5 = tigetstr("kf5");
_kf6 = tigetstr("kf6");
_kf7 = tigetstr("kf7");
_kf8 = tigetstr("kf8");
_kf9 = tigetstr("kf9");
_kf10 = tigetstr("kf10");
_kf11 = tigetstr("kf11");
_kf12 = tigetstr("kf12");
_colors = tigetnum("colors");
_pairs = tigetnum("pairs");
_setaf = tigetstr("setaf");
_setab = tigetstr("setab");
_setf = tigetstr("setf");
_setb = tigetstr("setb");
_scp = tigetstr("scp");
_op = tigetstr("op");
_oc = tigetstr("oc");
_bce = tigetflag("bce");
_tlines = tigetnum("lines");
if(_tlines == -1){
char *er;
int rr;
/* tigetnum failed, try $LINES */
er = getenv("LINES");
if(er && (rr = atoi(er)) > 0)
_tlines = rr;
}
_tcolumns = tigetnum("cols");
if(_tcolumns == -1){
char *ec;
int cc;
/* tigetnum failed, try $COLUMNS */
ec = getenv("COLUMNS");
if(ec && (cc = atoi(ec)) > 0)
_tcolumns = cc;
}
/*
* Add default keypad sequences to the trie.
* Since these come first, they will override any conflicting termcap
* or terminfo escape sequences defined below. An escape sequence is
* considered conflicting if one is a prefix of the other.
* So, without TERMCAP_WINS, there will likely be some termcap/terminfo
* escape sequences that don't work, because they conflict with default
* sequences defined here.
*/
if(!termcap_wins)
setup_dflt_esc_seq();
/*
* add termcap/info escape sequences to the trie...
*/
if(_ku != NULL && _kd != NULL && _kl != NULL && _kr != NULL){
kpinsert(_ku, KEY_UP, termcap_wins);
kpinsert(_kd, KEY_DOWN, termcap_wins);
kpinsert(_kl, KEY_LEFT, termcap_wins);
kpinsert(_kr, KEY_RIGHT, termcap_wins);
}
if(_kppu != NULL && _kppd != NULL){
kpinsert(_kppu, KEY_PGUP, termcap_wins);
kpinsert(_kppd, KEY_PGDN, termcap_wins);
}
kpinsert(_kphome, KEY_HOME, termcap_wins);
kpinsert(_kpend, KEY_END, termcap_wins);
kpinsert(_kpdel, KEY_DEL, termcap_wins);
kpinsert(_kf1, F1, termcap_wins);
kpinsert(_kf2, F2, termcap_wins);
kpinsert(_kf3, F3, termcap_wins);
kpinsert(_kf4, F4, termcap_wins);
kpinsert(_kf5, F5, termcap_wins);
kpinsert(_kf6, F6, termcap_wins);
kpinsert(_kf7, F7, termcap_wins);
kpinsert(_kf8, F8, termcap_wins);
kpinsert(_kf9, F9, termcap_wins);
kpinsert(_kf10, F10, termcap_wins);
kpinsert(_kf11, F11, termcap_wins);
kpinsert(_kf12, F12, termcap_wins);
/*
* Add default keypad sequences to the trie.
* Since these come after the termcap/terminfo escape sequences above,
* the termcap/info sequences will override any conflicting default
* escape sequences defined here.
* So, with TERMCAP_WINS, some of the default sequences will be missing.
* This means that you'd better get all of your termcap/terminfo entries
* correct if you define TERMCAP_WINS.
*/
if(termcap_wins)
setup_dflt_esc_seq();
if(Pmaster)
return(0);
else
return(TRUE);
}
static int
tinfoopen()
{
int row, col;
/*
* determine the terminal's communication speed and decide
* if we need to do optimization ...
*/
optimize = ttisslow();
col = _tcolumns;
row = _tlines;
if(row >= 0)
row--;
ttgetwinsz(&row, &col);
term.t_nrow = (short) row;
term.t_ncol = (short) col;
eolexist = (_cleartoeoln != NULL); /* able to use clear to EOL? */
revexist = (_setinverse != NULL);
if(_deletechar == NULL && (_startdelete == NULL || _enddelete == NULL))
delchar = FALSE;
if(_insertchar == NULL && (_startinsert == NULL || _endinsert == NULL))
inschar = FALSE;
if((_scrollregion == NULL || _scrolldown == NULL || _scrollup == NULL)
&& (_deleteline == NULL || _insertline == NULL))
scrollexist = FALSE;
if(_clearscreen == NULL || _moveto == NULL || _up == NULL){
if(Pmaster == NULL){
puts("Incomplete terminfo entry\n");
exit(1);
}
}
ttopen();
if(_termcap_init && !Pmaster) {
putpad(_termcap_init); /* any init terminfo requires */
if (_scrollregion)
putpad(tgoto(_scrollregion, term.t_nrow, 0)) ;
}
/*
* Initialize UW-modified NCSA telnet to use its functionkeys
*/
if(gmode&MDFKEY && Pmaster == NULL)
puts("\033[99h");
/* return ignored */
return(0);
}
static tinfoclose()
{
if(!Pmaster){
if(gmode&MDFKEY)
puts("\033[99l"); /* reset UW-NCSA telnet keys */
if(_termcap_end) /* any clean up terminfo requires */
putpad(_termcap_end);
}
ttclose();
/* return ignored */
return(0);
}
/*
* tinfoinsert - insert a character at the current character position.
* _insertchar takes precedence.
*/
static void
tinfoinsert(ch)
register int ch;
{
if(_insertchar != NULL){
putpad(_insertchar);
ttputc(ch);
}
else{
putpad(_startinsert);
ttputc(ch);
putpad(_endinsert);
}
}
/*
* tinfodelete - delete a character at the current character position.
*/
static void
tinfodelete()
{
if(_startdelete == NULL && _enddelete == NULL)
putpad(_deletechar);
else{
putpad(_startdelete);
putpad(_deletechar);
putpad(_enddelete);
}
}
/*
* o_scrolldown() - open a line at the given row position.
* use either region scrolling or deleteline/insertline
* to open a new line.
*/
o_scrolldown(row, n)
register int row;
register int n;
{
register int i;
if(_scrollregion != NULL){
putpad(tgoto(_scrollregion, term.t_nrow - (term.t_mrow+1), row));
tinfomove(row, 0);
for(i = 0; i < n; i++)
putpad((_scrollup != NULL && *_scrollup != '\0') ? _scrollup : "\n" );
putpad(tgoto(_scrollregion, term.t_nrow, 0));
tinfomove(row, 0);
}
else{
/*
* this code causes a jiggly motion of the keymenu when scrolling
*/
for(i = 0; i < n; i++){
tinfomove(term.t_nrow - (term.t_mrow+1), 0);
putpad(_deleteline);
tinfomove(row, 0);
putpad(_insertline);
}
#ifdef NOWIGGLYLINES
/*
* this code causes a sweeping motion up and down the display
*/
tinfomove(term.t_nrow - term.t_mrow - n, 0);
for(i = 0; i < n; i++)
putpad(_deleteline);
tinfomove(row, 0);
for(i = 0; i < n; i++)
putpad(_insertline);
#endif
}
/* return ignored */
return(0);
}
/*
* o_scrollup() - open a line at the given row position.
* use either region scrolling or deleteline/insertline
* to open a new line.
*/
o_scrollup(row, n)
register int row;
register int n;
{
register int i;
if(_scrollregion != NULL){
putpad(tgoto(_scrollregion, term.t_nrow - (term.t_mrow+1), row));
/* setting scrolling region moves cursor to home */
tinfomove(term.t_nrow-(term.t_mrow+1), 0);
for(i = 0;i < n; i++)
putpad((_scrolldown == NULL || _scrolldown[0] == '\0') ? "\n"
: _scrolldown);
putpad(tgoto(_scrollregion, term.t_nrow, 0));
tinfomove(2, 0);
}
else{
for(i = 0; i < n; i++){
tinfomove(row, 0);
putpad(_deleteline);
tinfomove(term.t_nrow - (term.t_mrow+1), 0);
putpad(_insertline);
}
#ifdef NOWIGGLYLINES
/* see note above */
tinfomove(row, 0);
for(i = 0; i < n; i++)
putpad(_deleteline);
tinfomove(term.t_nrow - term.t_mrow - n, 0);
for(i = 0;i < n; i++)
putpad(_insertline);
#endif
}
/* return ignored */
return(0);
}
/*
* o_insert - use terminfo to optimized character insert
* returns: true if it optimized output, false otherwise
*/
o_insert(c)
int c;
{
if(inschar){
tinfoinsert(c);
return(1); /* no problems! */
}
return(0); /* can't do it. */
}
/*
* o_delete - use terminfo to optimized character insert
* returns true if it optimized output, false otherwise
*/
o_delete()
{
if(delchar){
tinfodelete();
return(1); /* deleted, no problem! */
}
return(0); /* no dice. */
}
static tinfomove(row, col)
register int row, col;
{
putpad(tgoto(_moveto, col, row));
/* return ignored */
return(0);
}
static tinfoeeol()
{
int c, starting_col, starting_line;
char *last_bg_color;
/*
* If the terminal doesn't have back color erase, then we have to
* erase manually to preserve the background color.
*/
if(pico_usingcolor() && (!_bce || !_cleartoeoln)){
extern int ttcol, ttrow;
starting_col = ttcol;
starting_line = ttrow;
last_bg_color = pico_get_last_bg_color();
pico_set_nbg_color();
for(c = ttcol; c < term.t_ncol; c++)
ttputc(' ');
tinfomove(starting_line, starting_col);
if(last_bg_color){
pico_set_bg_color(last_bg_color);
free(last_bg_color);
}
}
else if(_cleartoeoln)
putpad(_cleartoeoln);
/* return ignored */
return(0);
}
static tinfoeeop()
{
int i, starting_col, starting_row;
/*
* If the terminal doesn't have back color erase, then we have to
* erase manually to preserve the background color.
*/
if(pico_usingcolor() && (!_bce || !_cleartoeos)){
extern int ttcol, ttrow;
starting_col = ttcol;
starting_row = ttrow;
tinfoeeol(); /* rest of this line */
for(i = ttrow+1; i <= term.t_nrow; i++){ /* the remaining lines */
tinfomove(i, 0);
tinfoeeol();
}
tinfomove(starting_row, starting_col);
}
else if(_cleartoeos)
putpad(_cleartoeos);
/* return ignored */
return(0);
}
static tinforev(state) /* change reverse video status */
int state; /* FALSE = normal video, TRUE = rev video */
{
if(state)
StartInverse();
else
EndInverse();
return(1);
}
static tinfobeep()
{
ttputc(BELL);
/* return ignored */
return(0);
}
static void
putpad(str)
char *str;
{
tputs(str, 1, ttputc);
}
#endif /* USE_TERMINFO */