15 #define CL_ANSIMIN 0x0001 /* Codes in all ANSI like terminals. */
16 #define CL_VT100 0x0002 /* VT100 */
17 #define CL_VT100AVO 0x0004 /* VT100 +AVO; 132x24 (not 132x14) & attrs */
18 #define CL_VT102 0x0008 /* VT102 */
19 #define CL_VT220 0x0010 /* VT220 */
20 #define CL_VT320 0x0020 /* VT320 */
21 #define CL_VT420 0x0040 /* VT420 */
22 #define CL_VT510 0x0080 /* VT510, NB VT510 includes ANSI */
23 #define CL_VT340TEXT 0x0100 /* VT340 extensions that appear in the VT420 */
24 #define CL_SCOANSI 0x1000 /* SCOANSI not in ANSIMIN. */
25 #define CL_ANSI 0x2000 /* ANSI ECMA-48 not in the VT100..VT420 */
26 #define CL_OTHER 0x4000 /* Others, Xterm, linux, putty, dunno, etc */
28 #define TM_VT100 (CL_ANSIMIN|CL_VT100)
29 #define TM_VT100AVO (TM_VT100|CL_VT100AVO)
30 #define TM_VT102 (TM_VT100AVO|CL_VT102)
31 #define TM_VT220 (TM_VT102|CL_VT220)
32 #define TM_VTXXX (TM_VT220|CL_VT340TEXT|CL_VT510|CL_VT420|CL_VT320)
33 #define TM_SCOANSI (CL_ANSIMIN|CL_SCOANSI)
35 #define TM_PUTTY (0xFFFF)
37 #define compatibility(x) \
38 if ( ((CL_##x)&compatibility_level) == 0 ) { \
42 #define compatibility2(x,y) \
43 if ( ((CL_##x|CL_##y)&compatibility_level) == 0 ) { \
48 #define has_compat(x) ( ((CL_##x)&compatibility_level) != 0 )
50 static int compatibility_level
= TM_PUTTY
;
53 static unsigned long *text
; /* buffer of text on terminal screen */
54 static unsigned long *scrtop
; /* top of working screen */
55 static unsigned long *disptop
; /* top of displayed screen */
56 static unsigned long *sbtop
; /* top of scrollback */
57 static unsigned long *sbbot
; /* furthest extent of scrollback */
58 static unsigned long *cpos
; /* cursor position (convenience) */
59 static unsigned long *disptext
; /* buffer of text on real screen */
60 static unsigned long *wanttext
; /* buffer of text we want on screen */
61 static unsigned long *alttext
; /* buffer of text on alt. screen */
63 static unsigned char *selspace
; /* buffer for building selections in */
65 #define TSIZE (sizeof(*text))
66 #define fix_cpos do { cpos = scrtop + curs_y * (cols+1) + curs_x; } while(0)
68 static unsigned long curr_attr
, save_attr
;
69 static unsigned long erase_char
= ERASE_CHAR
;
71 static int curs_x
, curs_y
; /* cursor */
72 static int save_x
, save_y
; /* saved cursor position */
73 static int marg_t
, marg_b
; /* scroll margins */
74 static int dec_om
; /* DEC origin mode flag */
75 static int wrap
, wrapnext
; /* wrap flags */
76 static int insert
; /* insert-mode flag */
77 static int cset
; /* 0 or 1: which char set */
78 static int save_cset
, save_csattr
; /* saved with cursor position */
79 static int rvideo
; /* global reverse video flag */
80 static int cursor_on
; /* cursor enabled flag */
81 static int reset_132
; /* Flag ESC c resets to 80 cols */
82 static int use_bce
; /* Use Background coloured erase */
83 static int blinker
; /* When blinking is the cursor on ? */
84 static int tblinker
; /* When the blinking text is on */
85 static int blink_is_real
; /* Actually blink blinking text */
87 static unsigned long cset_attr
[2];
90 * Saved settings on the alternate screen.
92 static int alt_x
, alt_y
, alt_om
, alt_wrap
, alt_wnext
, alt_ins
, alt_cset
;
93 static int alt_t
, alt_b
;
96 #define ARGS_MAX 32 /* max # of esc sequence arguments */
97 #define ARG_DEFAULT 0 /* if an arg isn't specified */
98 #define def(a,d) ( (a) == ARG_DEFAULT ? (d) : (a) )
99 static int esc_args
[ARGS_MAX
];
100 static int esc_nargs
;
101 static int esc_query
;
102 #define ANSI(x,y) ((x)+((y)<<8))
103 #define ANSI_QUE(x) ANSI(x,TRUE)
105 #define OSC_STR_MAX 2048
106 static int osc_strlen
;
107 static char osc_string
[OSC_STR_MAX
+1];
110 static char id_string
[1024] = "\033[?6c";
112 static unsigned char *tabs
;
126 OSC_STRING
, OSC_MAYBE_ST
,
134 NO_SELECTION
, ABOUT_TO
, DRAGGING
, SELECTED
137 SM_CHAR
, SM_WORD
, SM_LINE
139 static unsigned long *selstart
, *selend
, *selanchor
;
141 static short wordness
[256] = {
142 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 01 */
143 0,1,2,1,1,1,1,1,1,1,1,1,1,2,2,2, 2,2,2,2,2,2,2,2,2,2,1,1,1,1,1,1, /* 23 */
144 1,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2, 2,2,2,2,2,2,2,2,2,2,2,1,1,1,1,2, /* 45 */
145 1,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2, 2,2,2,2,2,2,2,2,2,2,2,1,1,1,1,1, /* 67 */
146 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, /* 89 */
147 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, /* AB */
148 2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2, 2,2,2,2,2,2,2,1,2,2,2,2,2,2,2,2, /* CD */
149 2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2, 2,2,2,2,2,2,2,1,2,2,2,2,2,2,2,2, /* EF */
152 static unsigned char sel_nl
[] = SEL_NL
;
153 static char * paste_buffer
= 0;
154 static int paste_len
, paste_pos
, paste_hold
;
157 * Internal prototypes.
159 static void do_paint (Context
, int);
160 static void erase_lots (int, int, int);
161 static void swap_screen (int);
162 static void update_sbar (void);
163 static void deselect (void);
166 * Set up power-on settings for the terminal.
168 static void power_on(void) {
169 curs_x
= curs_y
= alt_x
= alt_y
= save_x
= save_y
= 0;
172 alt_b
= marg_b
= rows
- 1;
177 for (i
= 0; i
< cols
; i
++)
178 tabs
[i
] = (i
% 8 == 0 ? TRUE
: FALSE
);
180 alt_om
= dec_om
= cfg
.dec_om
;
181 alt_wnext
= wrapnext
= alt_ins
= insert
= FALSE
;
182 alt_wrap
= wrap
= cfg
.wrap_mode
;
184 cset_attr
[0] = cset_attr
[1] = ATTR_ASCII
;
187 save_attr
= curr_attr
= ATTR_DEFAULT
;
188 app_cursor_keys
= cfg
.app_cursor
;
189 app_keypad_keys
= cfg
.app_keypad
;
191 blink_is_real
= cfg
.blinktext
;
192 erase_char
= ERASE_CHAR
;
196 for (i
= 0; i
< 256; i
++)
197 wordness
[i
] = cfg
.wordness
[i
];
201 erase_lots (FALSE
, TRUE
, TRUE
);
203 erase_lots (FALSE
, TRUE
, TRUE
);
208 * Force a screen update.
210 void term_update(void) {
214 if ( (seen_key_event
&& (cfg
.scroll_on_key
)) ||
215 (seen_disp_event
&& (!cfg
.scroll_on_key
)) ) {
217 seen_disp_event
= seen_key_event
= 0;
219 do_paint (ctx
, TRUE
);
220 sys_cursor(curs_x
, curs_y
+ (scrtop
- disptop
) / (cols
+1));
226 * Same as power_on(), but an external function.
228 void term_pwron(void) {
237 * Clear the scrollback.
239 void term_clrsb(void) {
240 disptop
= sbtop
= scrtop
;
245 * Initialise the terminal.
247 void term_init(void) {
248 text
= sbtop
= sbbot
= scrtop
= disptop
= cpos
= NULL
;
249 disptext
= wanttext
= NULL
;
258 * Set up the terminal for a given size.
260 void term_size(int newrows
, int newcols
, int newsavelines
) {
261 unsigned long *newtext
, *newdisp
, *newwant
, *newalt
;
262 int i
, j
, crows
, ccols
;
264 int save_alt_which
= alt_which
;
266 if (newrows
== rows
&& newcols
== cols
&& newsavelines
== savelines
)
267 return; /* nothing to do */
273 alt_b
= marg_b
= newrows
- 1;
275 newtext
= smalloc ((newrows
+newsavelines
)*(newcols
+1)*TSIZE
);
276 sbbot
= newtext
+ newsavelines
*(newcols
+1);
277 for (i
=0; i
<(newrows
+newsavelines
)*(newcols
+1); i
++)
278 newtext
[i
] = erase_char
;
280 crows
= rows
+ (scrtop
- sbtop
) / (cols
+1);
281 if (crows
> newrows
+newsavelines
)
282 crows
= newrows
+newsavelines
;
286 disptop
= newtext
+ (crows
-newrows
)*(newcols
+1);
287 ccols
= (cols
< newcols ? cols
: newcols
);
288 for (i
=0; i
<crows
; i
++) {
289 int oldidx
= (rows
- crows
+ i
) * (cols
+1);
290 int newidx
= (newrows
- crows
+ i
) * (newcols
+1);
292 for (j
=0; j
<ccols
; j
++)
293 disptop
[newidx
+j
] = scrtop
[oldidx
+j
];
294 disptop
[newidx
+newcols
] =
295 (cols
== newcols ? scrtop
[oldidx
+cols
]
296 : (scrtop
[oldidx
+cols
]&LATTR_MODE
));
300 sbtop
= disptop
= newtext
;
306 newdisp
= smalloc (newrows
*(newcols
+1)*TSIZE
);
307 for (i
=0; i
<newrows
*(newcols
+1); i
++)
308 newdisp
[i
] = ATTR_INVALID
;
312 newwant
= smalloc (newrows
*(newcols
+1)*TSIZE
);
313 for (i
=0; i
<newrows
*(newcols
+1); i
++)
314 newwant
[i
] = ATTR_INVALID
;
318 newalt
= smalloc (newrows
*(newcols
+1)*TSIZE
);
319 for (i
=0; i
<newrows
*(newcols
+1); i
++)
320 newalt
[i
] = erase_char
;
325 selspace
= smalloc ( (newrows
+newsavelines
) * (newcols
+sizeof(sel_nl
)) );
327 tabs
= srealloc (tabs
, newcols
*sizeof(*tabs
));
330 for (i
= (cols
> 0 ? cols
: 0); i
< newcols
; i
++)
331 tabs
[i
] = (i
% 8 == 0 ? TRUE
: FALSE
);
335 curs_y
+= newrows
- rows
;
338 if (curs_y
>= newrows
)
340 if (curs_x
>= newcols
)
343 wrapnext
= alt_wnext
= FALSE
;
347 savelines
= newsavelines
;
350 swap_screen(save_alt_which
);
359 static void swap_screen (int which
) {
363 if (which
== alt_which
)
368 for (t
=0; t
<rows
*(cols
+1); t
++) {
369 tt
= scrtop
[t
]; scrtop
[t
] = alttext
[t
]; alttext
[t
] = tt
;
372 t
= curs_x
; curs_x
= alt_x
; alt_x
= t
;
373 t
= curs_y
; curs_y
= alt_y
; alt_y
= t
;
374 t
= marg_t
; marg_t
= alt_t
; alt_t
= t
;
375 t
= marg_b
; marg_b
= alt_b
; alt_b
= t
;
376 t
= dec_om
; dec_om
= alt_om
; alt_om
= t
;
377 t
= wrap
; wrap
= alt_wrap
; alt_wrap
= t
;
378 t
= wrapnext
; wrapnext
= alt_wnext
; alt_wnext
= t
;
379 t
= insert
; insert
= alt_ins
; alt_ins
= t
;
380 t
= cset
; cset
= alt_cset
; alt_cset
= t
;
386 * Update the scroll bar.
388 static void update_sbar(void) {
391 min
= (sbtop
- text
) / (cols
+1);
392 set_sbar ((scrtop
- text
) / (cols
+1) + rows
- min
,
393 (disptop
- text
) / (cols
+1) - min
,
398 * Check whether the region bounded by the two pointers intersects
399 * the scroll region, and de-select the on-screen selection if so.
401 static void check_selection (unsigned long *from
, unsigned long *to
) {
402 if (from
< selend
&& selstart
< to
)
407 * Scroll the screen. (`lines' is +ve for scrolling forward, -ve
408 * for backward.) `sb' is TRUE if the scrolling is permitted to
409 * affect the scrollback buffer.
411 static void scroll (int topline
, int botline
, int lines
, int sb
) {
412 unsigned long *scroll_top
;
413 unsigned long *newscr
;
414 int scroll_size
, size
, i
;
415 int scrtop_is_disptop
= (scrtop
==disptop
);
416 static int recursive
= 0;
418 /* Only scroll more than the window if we're doing a 10% scroll */
419 if (!recursive
&& lines
> botline
- topline
+ 1)
420 lines
= botline
- topline
+ 1;
422 scroll_top
= scrtop
+ topline
*(cols
+1);
423 size
= (lines
< 0 ?
-lines
: lines
) * (cols
+1);
424 scroll_size
= (botline
- topline
+ 1) * (cols
+1) - size
;
426 if (lines
> 0 && topline
== 0 && alt_which
== 0 && sb
) {
428 * Since we're going to scroll the top line and we're on the
429 * scrolling screen let's also effect the scrollback buffer.
431 * This is normally done by moving the position the screen
432 * painter reads from to reduce the amount of memory copying
435 if (scroll_size
>= 0 && !recursive
) {
436 newscr
= scrtop
+ lines
* (cols
+1);
438 if (newscr
> sbbot
&& botline
== rows
-1) {
439 /* We've hit the bottom of memory, so we have to do a
440 * physical scroll. But instead of just 1 line do it
441 * by 10% of the available memory.
443 * If the scroll region isn't the whole screen then we can't
444 * do this as it stands. We would need to recover the bottom
445 * of the screen from the scroll buffer after being sure that
446 * it doesn't get deleted.
449 i
= (rows
+savelines
)/10;
451 /* Make it simple and ensure safe recursion */
452 if ( i
<savelines
-1) {
454 scroll(topline
, botline
, i
, sb
);
457 newscr
= scrtop
- i
* (cols
+1);
458 if (scrtop_is_disptop
) disptop
= newscr
;
462 newscr
= scrtop
+ lines
* (cols
+1);
465 if (newscr
<= sbbot
) {
466 if (scrtop_is_disptop
) disptop
= newscr
;
469 if (botline
== rows
-1 )
470 for (i
= 0; i
< size
; i
++)
471 scrtop
[i
+scroll_size
] = erase_char
;
476 if (botline
!= rows
-1) {
477 /* This fastscroll only works for full window scrolls.
478 * If the caller wanted a partial one we have to reverse
479 * scroll the bottom of the screen.
481 scroll(botline
-lines
+1, rows
-1, -lines
, 0);
486 /* If we can't scroll by memory remapping do it physically.
487 * But rather than expensivly doing the scroll buffer just
488 * scroll the screen. All it means is that sometimes we choose
489 * to not add lines from a scroll region to the scroll buffer.
492 if (savelines
<= 400) {
493 sbtop
-= lines
* (cols
+1);
496 scroll_size
+= scroll_top
- sbtop
;
502 /* Ho hum, expensive scroll required. */
504 sbtop
-= lines
* (cols
+1);
507 scroll_size
+= scroll_top
- sbtop
;
514 if (scroll_size
< 0) {
521 memmove (scroll_top
, scroll_top
+ size
, scroll_size
*TSIZE
);
522 for (i
= 0; i
< size
; i
++)
523 scroll_top
[i
+scroll_size
] = erase_char
;
524 if (selstart
> scroll_top
&&
525 selstart
< scroll_top
+ size
+ scroll_size
) {
527 if (selstart
< scroll_top
)
528 selstart
= scroll_top
;
530 if (selend
> scroll_top
&&
531 selend
< scroll_top
+ size
+ scroll_size
) {
533 if (selend
< scroll_top
)
536 if (scrtop_is_disptop
)
539 if (disptop
> scroll_top
&&
540 disptop
< scroll_top
+ size
+ scroll_size
) {
542 if (disptop
< scroll_top
)
543 disptop
= scroll_top
;
547 memmove (scroll_top
+ size
, scroll_top
, scroll_size
*TSIZE
);
548 for (i
= 0; i
< size
; i
++)
549 scroll_top
[i
] = erase_char
;
550 if (selstart
> scroll_top
&&
551 selstart
< scroll_top
+ size
+ scroll_size
) {
553 if (selstart
> scroll_top
+ size
+ scroll_size
)
554 selstart
= scroll_top
+ size
+ scroll_size
;
556 if (selend
> scroll_top
&&
557 selend
< scroll_top
+ size
+ scroll_size
) {
559 if (selend
> scroll_top
+ size
+ scroll_size
)
560 selend
= scroll_top
+ size
+ scroll_size
;
562 if (scrtop_is_disptop
)
564 else if (disptop
> scroll_top
&&
565 disptop
< scroll_top
+ size
+ scroll_size
) {
567 if (disptop
> scroll_top
+ size
+ scroll_size
)
568 disptop
= scroll_top
+ size
+ scroll_size
;
574 * Move the cursor to a given position, clipping at boundaries. We
575 * may or may not want to clip at the scroll margin: marg_clip is 0
576 * not to, 1 to disallow _passing_ the margins, and 2 to disallow
577 * even _being_ outside the margins.
579 static void move (int x
, int y
, int marg_clip
) {
585 if ((curs_y
>= marg_t
|| marg_clip
== 2) && y
< marg_t
)
587 if ((curs_y
<= marg_b
|| marg_clip
== 2) && y
> marg_b
)
601 * Save or restore the cursor and SGR mode.
603 static void save_cursor(int save
) {
607 save_attr
= curr_attr
;
609 save_csattr
= cset_attr
[cset
];
613 /* Make sure the window hasn't shrunk since the save */
614 if (curs_x
>= cols
) curs_x
= cols
-1;
615 if (curs_y
>= rows
) curs_y
= rows
-1;
617 curr_attr
= save_attr
;
619 cset_attr
[cset
] = save_csattr
;
621 if (use_bce
) erase_char
= (' ' |(curr_attr
&(ATTR_FGMASK
|ATTR_BGMASK
)));
626 * Erase a large portion of the screen: the whole screen, or the
627 * whole line, or parts thereof.
629 static void erase_lots (int line_only
, int from_begin
, int to_end
) {
630 unsigned long *startpos
, *endpos
;
633 startpos
= cpos
- curs_x
;
634 endpos
= startpos
+ cols
;
635 /* I've removed the +1 so that the Wide screen stuff is not
636 * removed when it shouldn't be.
640 endpos
= startpos
+ rows
* (cols
+1);
646 check_selection (startpos
, endpos
);
648 /* Clear screen also forces a full window redraw, just in case. */
649 if (startpos
== scrtop
&& endpos
== scrtop
+ rows
* (cols
+1))
652 while (startpos
< endpos
)
653 *startpos
++ = erase_char
;
657 * Insert or delete characters within the current line. n is +ve if
658 * insertion is desired, and -ve for deletion.
660 static void insch (int n
) {
661 int dir
= (n
< 0 ?
-1 : +1);
664 n
= (n
< 0 ?
-n
: n
);
665 if (n
> cols
- curs_x
)
667 m
= cols
- curs_x
- n
;
668 check_selection (cpos
, cpos
+n
);
670 memmove (cpos
, cpos
+n
, m
*TSIZE
);
672 cpos
[m
++] = erase_char
;
674 memmove (cpos
+n
, cpos
, m
*TSIZE
);
676 cpos
[n
] = erase_char
;
681 * Toggle terminal mode `mode' to state `state'. (`query' indicates
682 * whether the mode is a DEC private one or a normal one.)
684 static void toggle_mode (int mode
, int query
, int state
) {
685 if (query
) switch (mode
) {
686 case 1: /* application cursor keys */
687 app_cursor_keys
= state
;
689 case 2: /* VT52 mode */
692 case 3: /* 80/132 columns */
694 request_resize (state ?
132 : 80, rows
, 1);
697 case 5: /* reverse video */
699 seen_disp_event
= TRUE
;
700 if (state
) term_update();
702 case 6: /* DEC origin mode */
705 case 7: /* auto wrap */
708 case 8: /* auto key repeat */
711 case 25: /* enable/disable cursor */
712 compatibility2(OTHER
,VT220
);
714 seen_disp_event
= TRUE
;
716 case 47: /* alternate screen */
717 compatibility(OTHER
);
722 } else switch (mode
) {
723 case 4: /* set insert mode */
724 compatibility(VT102
);
727 case 12: /* set echo mode */
729 * This may be very good in smcup and rmcup (or smkx & rmkx) if you
730 * have a long RTT and the telnet client/daemon doesn't understand
733 * DONT send TS_RECHO/TS_LECHO; the telnet daemon tries to fix the
734 * tty and _really_ confuses some programs.
736 compatibility2(OTHER
,VT220
);
737 ldisc
= (state?
&ldisc_simple
: &ldisc_term
);
739 case 20: /* Return sends ... */
740 cr_lf_return
= state
;
746 * Process an OSC sequence: set window title or icon name.
748 static void do_osc(void) {
751 wordness
[(unsigned char)osc_string
[osc_strlen
]] = esc_args
[0];
753 osc_string
[osc_strlen
] = '\0';
754 switch (esc_args
[0]) {
757 set_icon (osc_string
);
758 if (esc_args
[0] == 1)
760 /* fall through: parameter 0 means set both */
763 set_title (osc_string
);
770 * Remove everything currently in `inbuf' and stick it up on the
771 * in-memory display. There's a big state machine in here to
772 * process escape sequences...
774 void term_out(void) {
777 static int beep_overload
= 0;
780 for(inbuf_reap
= 0; inbuf_reap
< inbuf_head
; inbuf_reap
++)
782 c
= inbuf
[inbuf_reap
];
785 * Optionally log the session traffic to a file. Useful for
786 * debugging and possibly also useful for actual logging.
789 static FILE *fp
= NULL
;
790 if (!fp
) fp
= fopen(logfile
, "wb");
791 if (fp
) fputc (c
, fp
);
793 /* Note only VT220+ are 8-bit VT102 is seven bit, it shouldn't even
794 * be able to display 8-bit characters, but I'll let that go 'cause
797 if( ( (c
&0x60) == 0 || c
== '\177') &&
798 termstate
< DO_CTRLS
&&
799 ( (c
&0x80) == 0 || has_compat(VT220
))) {
801 case '\005': /* terminal type query */
802 /* Strictly speaking this is VT100 but a VT100 defaults to
803 * no response. Other terminals respond at their option.
805 * Don't put a CR in the default string as this tends to
806 * upset some weird software.
808 * An xterm returns "xterm" (5 characters)
810 compatibility(OTHER
);
811 ldisc
->send ("PuTTY", 5);
815 if(beep_count
>6) beep_overload
=1;
819 if (curs_x
== 0 && curs_y
== 0)
821 else if (curs_x
== 0 && curs_y
> 0)
822 curs_x
= cols
-1, curs_y
--;
828 seen_disp_event
= TRUE
;
831 compatibility(VT100
);
835 compatibility(VT100
);
840 termstate
= VT52_ESC
;
842 compatibility(ANSIMIN
);
843 termstate
= SEEN_ESC
;
847 compatibility(VT220
);
848 termstate
= SEEN_CSI
;
850 esc_args
[0] = ARG_DEFAULT
;
854 compatibility(VT220
);
855 termstate
= SEEN_OSC
;
862 seen_disp_event
= TRUE
;
867 compatibility(VT100
);
869 if (curs_y
== marg_b
)
870 scroll (marg_t
, marg_b
, 1, TRUE
);
871 else if (curs_y
< rows
-1)
882 unsigned long *old_cpos
= cpos
;
883 unsigned long *p
= scrtop
+ curs_y
* (cols
+1) + cols
;
887 } while (curs_x
< cols
-1 && !tabs
[curs_x
]);
889 if ((*p
& LATTR_MODE
) != LATTR_NORM
)
891 if (curs_x
>= cols
/2)
901 check_selection (old_cpos
, cpos
);
903 seen_disp_event
= TRUE
;
905 case '\177': /* Destructive backspace
906 This does nothing on a real VT100 */
907 compatibility(OTHER
);
908 if (curs_x
&& !wrapnext
) curs_x
--;
911 *cpos
= (' ' | curr_attr
| ATTR_ASCII
);
915 else switch (termstate
) {
917 /* Only graphic characters get this far, ctrls are stripped above */
919 cpos
[1] |= ATTR_WRAPPED
;
920 if (curs_y
== marg_b
)
921 scroll (marg_t
, marg_b
, 1, TRUE
);
922 else if (curs_y
< rows
-1)
930 if (selstate
!= NO_SELECTION
)
931 check_selection (cpos
, cpos
+1);
932 switch (cset_attr
[cset
]) {
933 /* Linedraw characters are different from 'ESC ( B' only
934 * for a small range, for ones outside that range make sure
935 * we use the same font as well as the same encoding.
938 if (c
<0x5f || c
>0x7F)
939 *cpos
++ = xlat_tty2scr((unsigned char)c
) | curr_attr
|
942 *cpos
++ = ' ' | curr_attr
| ATTR_ASCII
;
944 *cpos
++ = ((unsigned char)c
) | curr_attr
| ATTR_LINEDRW
;
947 /* If UK-ASCII, make the '#' a LineDraw Pound */
949 *cpos
++ = '}' | curr_attr
| ATTR_LINEDRW
;
954 *cpos
++ = xlat_tty2scr((unsigned char)c
) | curr_attr
|
955 (c
<= 0x7F ? cset_attr
[cset
] : ATTR_ASCII
);
959 if (curs_x
== cols
) {
968 termstate
= TOPLEVEL
;
972 * This state is virtually identical to SEEN_ESC, with the
973 * exception that we have an OSC sequence in the pipeline,
974 * and _if_ we see a backslash, we process it.
978 termstate
= TOPLEVEL
;
981 /* else fall through */
983 termstate
= TOPLEVEL
;
985 case ' ': /* some weird sequence? */
986 compatibility(VT220
);
987 termstate
= IGNORE_NEXT
;
989 case '[': /* enter CSI mode */
990 termstate
= SEEN_CSI
;
992 esc_args
[0] = ARG_DEFAULT
;
995 case ']': /* xterm escape sequences */
996 /* Compatibility is nasty here, xterm, linux, decterm yuk! */
997 compatibility(OTHER
);
998 termstate
= SEEN_OSC
;
1001 case '(': /* should set GL */
1002 compatibility(VT100
);
1005 case ')': /* should set GR */
1006 compatibility(VT100
);
1009 case '7': /* save cursor */
1010 compatibility(VT100
);
1013 case '8': /* restore cursor */
1014 compatibility(VT100
);
1015 save_cursor (FALSE
);
1016 seen_disp_event
= TRUE
;
1019 compatibility(VT100
);
1020 app_keypad_keys
= TRUE
;
1023 compatibility(VT100
);
1024 app_keypad_keys
= FALSE
;
1026 case 'D': /* exactly equivalent to LF */
1027 compatibility(VT100
);
1028 if (curs_y
== marg_b
)
1029 scroll (marg_t
, marg_b
, 1, TRUE
);
1030 else if (curs_y
< rows
-1)
1034 seen_disp_event
= TRUE
;
1036 case 'E': /* exactly equivalent to CR-LF */
1037 compatibility(VT100
);
1039 if (curs_y
== marg_b
)
1040 scroll (marg_t
, marg_b
, 1, TRUE
);
1041 else if (curs_y
< rows
-1)
1045 seen_disp_event
= TRUE
;
1047 case 'M': /* reverse index - backwards LF */
1048 compatibility(VT100
);
1049 if (curs_y
== marg_t
)
1050 scroll (marg_t
, marg_b
, -1, TRUE
);
1051 else if (curs_y
> 0)
1055 seen_disp_event
= TRUE
;
1057 case 'Z': /* terminal type query */
1058 compatibility(VT100
);
1059 ldisc
->send (id_string
, strlen(id_string
));
1061 case 'c': /* restore power-on settings */
1062 compatibility(VT100
);
1065 request_resize (80, rows
, 1);
1070 seen_disp_event
= TRUE
;
1072 case '#': /* ESC # 8 fills screen with Es :-) */
1073 compatibility(VT100
);
1074 termstate
= SEEN_ESCHASH
;
1076 case 'H': /* set a tab */
1077 compatibility(VT100
);
1078 tabs
[curs_x
] = TRUE
;
1083 termstate
= TOPLEVEL
; /* default */
1086 if (esc_nargs
<= ARGS_MAX
) {
1087 if (esc_args
[esc_nargs
-1] == ARG_DEFAULT
)
1088 esc_args
[esc_nargs
-1] = 0;
1089 esc_args
[esc_nargs
-1] =
1090 10 * esc_args
[esc_nargs
-1] + c
- '0';
1092 termstate
= SEEN_CSI
;
1096 if (++esc_nargs
<= ARGS_MAX
)
1097 esc_args
[esc_nargs
-1] = ARG_DEFAULT
;
1098 termstate
= SEEN_CSI
;
1102 if( esc_query
) esc_query
= -1;
1103 else if( c
== '?' ) esc_query
= TRUE
;
1105 termstate
= SEEN_CSI
;
1107 else switch (ANSI(c
,esc_query
)) {
1108 case 'A': /* move up N lines */
1109 move (curs_x
, curs_y
- def(esc_args
[0], 1), 1);
1110 seen_disp_event
= TRUE
;
1112 case 'e': /* move down N lines */
1113 compatibility(ANSI
);
1115 move (curs_x
, curs_y
+ def(esc_args
[0], 1), 1);
1116 seen_disp_event
= TRUE
;
1118 case 'a': /* move right N cols */
1119 compatibility(ANSI
);
1121 move (curs_x
+ def(esc_args
[0], 1), curs_y
, 1);
1122 seen_disp_event
= TRUE
;
1124 case 'D': /* move left N cols */
1125 move (curs_x
- def(esc_args
[0], 1), curs_y
, 1);
1126 seen_disp_event
= TRUE
;
1128 case 'E': /* move down N lines and CR */
1129 compatibility(ANSI
);
1130 move (0, curs_y
+ def(esc_args
[0], 1), 1);
1131 seen_disp_event
= TRUE
;
1133 case 'F': /* move up N lines and CR */
1134 compatibility(ANSI
);
1135 move (0, curs_y
- def(esc_args
[0], 1), 1);
1136 seen_disp_event
= TRUE
;
1138 case 'G': case '`': /* set horizontal posn */
1139 compatibility(ANSI
);
1140 move (def(esc_args
[0], 1) - 1, curs_y
, 0);
1141 seen_disp_event
= TRUE
;
1143 case 'd': /* set vertical posn */
1144 compatibility(ANSI
);
1145 move (curs_x
, (dec_om ? marg_t
: 0) + def(esc_args
[0], 1) - 1,
1147 seen_disp_event
= TRUE
;
1149 case 'H': case 'f': /* set horz and vert posns at once */
1151 esc_args
[1] = ARG_DEFAULT
;
1152 move (def(esc_args
[1], 1) - 1,
1153 (dec_om ? marg_t
: 0) + def(esc_args
[0], 1) - 1,
1155 seen_disp_event
= TRUE
;
1157 case 'J': /* erase screen or parts of it */
1159 unsigned int i
= def(esc_args
[0], 0) + 1;
1162 erase_lots(FALSE
, !!(i
& 2), !!(i
& 1));
1165 seen_disp_event
= TRUE
;
1167 case 'K': /* erase line or parts of it */
1169 unsigned int i
= def(esc_args
[0], 0) + 1;
1172 erase_lots(TRUE
, !!(i
& 2), !!(i
& 1));
1174 seen_disp_event
= TRUE
;
1176 case 'L': /* insert lines */
1177 compatibility(VT102
);
1178 if (curs_y
<= marg_b
)
1179 scroll (curs_y
, marg_b
, -def(esc_args
[0], 1), FALSE
);
1180 seen_disp_event
= TRUE
;
1182 case 'M': /* delete lines */
1183 compatibility(VT102
);
1184 if (curs_y
<= marg_b
)
1185 scroll (curs_y
, marg_b
, def(esc_args
[0], 1), TRUE
);
1186 seen_disp_event
= TRUE
;
1188 case '@': /* insert chars */
1189 /* XXX VTTEST says this is vt220, vt510 manual says vt102 */
1190 compatibility(VT102
);
1191 insch (def(esc_args
[0], 1));
1192 seen_disp_event
= TRUE
;
1194 case 'P': /* delete chars */
1195 compatibility(VT102
);
1196 insch (-def(esc_args
[0], 1));
1197 seen_disp_event
= TRUE
;
1199 case 'c': /* terminal type query */
1200 compatibility(VT100
);
1201 /* This is the response for a VT102 */
1202 ldisc
->send (id_string
, strlen(id_string
));
1204 case 'n': /* cursor position query */
1205 if (esc_args
[0] == 6) {
1207 sprintf (buf
, "\033[%d;%dR", curs_y
+ 1, curs_x
+ 1);
1208 ldisc
->send (buf
, strlen(buf
));
1210 else if (esc_args
[0] == 5) {
1211 ldisc
->send ("\033[0n", 4);
1214 case 'h': /* toggle modes to high */
1216 compatibility(VT100
);
1219 for (i
=0; i
<esc_nargs
; i
++)
1220 toggle_mode (esc_args
[i
], esc_query
, TRUE
);
1223 case 'l': /* toggle modes to low */
1225 compatibility(VT100
);
1228 for (i
=0; i
<esc_nargs
; i
++)
1229 toggle_mode (esc_args
[i
], esc_query
, FALSE
);
1232 case 'g': /* clear tabs */
1233 compatibility(VT100
);
1234 if (esc_nargs
== 1) {
1235 if (esc_args
[0] == 0) {
1236 tabs
[curs_x
] = FALSE
;
1237 } else if (esc_args
[0] == 3) {
1239 for (i
= 0; i
< cols
; i
++)
1244 case 'r': /* set scroll margins */
1245 compatibility(VT100
);
1246 if (esc_nargs
<= 2) {
1248 top
= def(esc_args
[0], 1) - 1;
1249 bot
= (esc_nargs
<= 1 || esc_args
[1] == 0 ? rows
:
1250 def(esc_args
[1], rows
)) - 1;
1253 /* VTTEST Bug 9 - if region is less than 2 lines
1254 * don't change region.
1261 * I used to think the cursor should be
1262 * placed at the top of the newly marginned
1263 * area. Apparently not: VMS TPU falls over
1266 * Well actually it should for Origin mode - RDB
1268 curs_y
= (dec_om ? marg_t
: 0);
1270 seen_disp_event
= TRUE
;
1274 case 'm': /* set graphics rendition */
1277 * A VT100 without the AVO only had one attribute, either
1278 * underline or reverse video depending on the cursor type,
1279 * this was selected by CSI 7m.
1282 * This is DIM on the VT100-AVO and VT102
1284 * This is BLINK on the VT100-AVO and VT102+
1286 * This is INVIS on the VT100-AVO and VT102
1288 * This like 22 disables BOLD, DIM and INVIS
1290 * The ANSI colours appear on any terminal that has colour
1291 * (obviously) but the interaction between sgr0 and the
1292 * colours varies but is usually related to the background
1293 * colour erase item.
1294 * The interaction between colour attributes and the mono
1295 * ones is also very implementation dependent.
1297 * The 39 and 49 attributes are likely to be unimplemented.
1300 for (i
=0; i
<esc_nargs
; i
++) {
1301 switch (def(esc_args
[i
], 0)) {
1302 case 0: /* restore defaults */
1303 curr_attr
= ATTR_DEFAULT
; break;
1304 case 1: /* enable bold */
1305 compatibility(VT100AVO
);
1306 curr_attr
|= ATTR_BOLD
; break;
1307 case 21: /* (enable double underline) */
1308 compatibility(OTHER
);
1309 case 4: /* enable underline */
1310 compatibility(VT100AVO
);
1311 curr_attr
|= ATTR_UNDER
; break;
1312 case 5: /* enable blink */
1313 compatibility(VT100AVO
);
1314 curr_attr
|= ATTR_BLINK
; break;
1315 case 7: /* enable reverse video */
1316 curr_attr
|= ATTR_REVERSE
; break;
1317 case 22: /* disable bold */
1318 compatibility2(OTHER
,VT220
);
1319 curr_attr
&= ~ATTR_BOLD
; break;
1320 case 24: /* disable underline */
1321 compatibility2(OTHER
,VT220
);
1322 curr_attr
&= ~ATTR_UNDER
; break;
1323 case 25: /* disable blink */
1324 compatibility2(OTHER
,VT220
);
1325 curr_attr
&= ~ATTR_BLINK
; break;
1326 case 27: /* disable reverse video */
1327 compatibility2(OTHER
,VT220
);
1328 curr_attr
&= ~ATTR_REVERSE
; break;
1329 case 30: case 31: case 32: case 33:
1330 case 34: case 35: case 36: case 37:
1332 curr_attr
&= ~ATTR_FGMASK
;
1333 curr_attr
|= (esc_args
[i
] - 30) << ATTR_FGSHIFT
;
1335 case 39: /* default-foreground */
1336 curr_attr
&= ~ATTR_FGMASK
;
1337 curr_attr
|= ATTR_DEFFG
;
1339 case 40: case 41: case 42: case 43:
1340 case 44: case 45: case 46: case 47:
1342 curr_attr
&= ~ATTR_BGMASK
;
1343 curr_attr
|= (esc_args
[i
] - 40) << ATTR_BGSHIFT
;
1345 case 49: /* default-background */
1346 curr_attr
&= ~ATTR_BGMASK
;
1347 curr_attr
|= ATTR_DEFBG
;
1354 (curr_attr
&(ATTR_FGMASK
|ATTR_BGMASK
|ATTR_BLINK
))
1358 case 's': /* save cursor */
1361 case 'u': /* restore cursor */
1362 save_cursor (FALSE
);
1363 seen_disp_event
= TRUE
;
1365 case 't': /* set page size - ie window height */
1367 * VT340/VT420 sequence DECSLPP, DEC only allows values
1368 * 24/25/36/48/72/144 other emulators (eg dtterm) use
1369 * illegal values (eg first arg 1..9) for window changing
1372 compatibility(VT340TEXT
);
1373 if (esc_nargs
<=1 && (esc_args
[0]<1 || esc_args
[0]>=24)) {
1374 request_resize (cols
, def(esc_args
[0], 24), 0);
1378 case ANSI('|', '*'):
1379 /* VT420 sequence DECSNLS
1380 * Set number of lines on screen
1381 * VT420 uses VGA like hardware and can support any size in
1382 * reasonable range (24..49 AIUI) with no default specified.
1384 compatibility(VT420
);
1385 if (esc_nargs
==1 && esc_args
[0]>0) {
1386 request_resize (cols
, def(esc_args
[0], cfg
.height
), 0);
1390 case ANSI('|', '$'):
1391 /* VT340/VT420 sequence DECSCPP
1392 * Set number of columns per page
1393 * Docs imply range is only 80 or 132, but I'll allow any.
1395 compatibility(VT340TEXT
);
1397 request_resize (def(esc_args
[0], cfg
.width
), rows
, 0);
1401 case 'X': /* write N spaces w/o moving cursor */
1402 /* XXX VTTEST says this is vt220, vt510 manual says vt100 */
1403 compatibility(ANSIMIN
);
1405 int n
= def(esc_args
[0], 1);
1406 unsigned long *p
= cpos
;
1407 if (n
> cols
- curs_x
)
1409 check_selection (cpos
, cpos
+n
);
1412 seen_disp_event
= TRUE
;
1415 case 'x': /* report terminal characteristics */
1416 compatibility(VT100
);
1419 int i
= def(esc_args
[0], 0);
1420 if (i
== 0 || i
== 1) {
1421 strcpy (buf
, "\033[2;1;1;112;112;1;0x");
1423 ldisc
->send (buf
, 20);
1428 compatibility(OTHER
);
1429 use_bce
= (esc_args
[0]<=0);
1430 erase_char
= ERASE_CHAR
;
1432 erase_char
= (' '|(curr_attr
&(ATTR_FGMASK
|ATTR_BGMASK
)));
1435 compatibility(OTHER
);
1436 blink_is_real
= (esc_args
[0]>=1);
1439 /* Allow the host to make this emulator a 'perfect' VT102.
1440 * This first appeared in the VT220, but we do need to get
1441 * back to PuTTY mode so I won't check it.
1443 * The arg in 40..42 are a PuTTY extension.
1444 * The 2nd arg, 8bit vs 7bit is not checked.
1446 * Setting VT102 mode should also change the Fkeys to
1447 * generate PF* codes as a real VT102 has no Fkeys.
1448 * The VT220 does this, F11..F13 become ESC,BS,LF other Fkeys
1451 * Note ESC c will NOT change this!
1454 switch (esc_args
[0]) {
1455 case 61: compatibility_level
&= ~TM_VTXXX
;
1456 compatibility_level
|= TM_VT102
; break;
1457 case 62: compatibility_level
&= ~TM_VTXXX
;
1458 compatibility_level
|= TM_VT220
; break;
1460 default: if( esc_args
[0] > 60 && esc_args
[0] < 70 )
1461 compatibility_level
|= TM_VTXXX
;
1464 case 40: compatibility_level
&= TM_VTXXX
; break;
1465 case 41: compatibility_level
= TM_PUTTY
; break;
1466 case 42: compatibility_level
= TM_SCOANSI
; break;
1469 compatibility_level
= TM_PUTTY
; break;
1473 /* Change the response to CSI c */
1474 if (esc_args
[0] == 50) {
1477 strcpy(id_string
, "\033[?");
1478 for (i
=1; i
<esc_nargs
; i
++) {
1479 if (i
!=1) strcat(id_string
, ";");
1480 sprintf(lbuf
, "%d", esc_args
[i
]);
1481 strcat(id_string
, lbuf
);
1483 strcat(id_string
, "c");
1487 /* Is this a good idea ?
1488 * Well we should do a soft reset at this point ...
1490 if (!has_compat(VT420
) && has_compat(VT100
)) {
1491 if (reset_132
) request_resize (132, 24, 1);
1492 else request_resize ( 80, 24, 1);
1500 /* VT100 only here, checked above */
1503 cset_attr
[termstate
== SET_GL ?
0 : 1] = ATTR_GBCHR
;
1506 cset_attr
[termstate
== SET_GL ?
0 : 1] = ATTR_LINEDRW
;
1509 default: /* specifically, 'B' */
1510 cset_attr
[termstate
== SET_GL ?
0 : 1] = ATTR_ASCII
;
1513 if( !has_compat(VT220
) || c
!= '%' )
1514 termstate
= TOPLEVEL
;
1519 case 'P': /* Linux palette sequence */
1520 termstate
= SEEN_OSC_P
;
1523 case 'R': /* Linux palette reset */
1526 termstate
= TOPLEVEL
;
1528 case 'W': /* word-set */
1529 termstate
= SEEN_OSC_W
;
1532 case '0': case '1': case '2': case '3': case '4':
1533 case '5': case '6': case '7': case '8': case '9':
1534 esc_args
[0] = 10 * esc_args
[0] + c
- '0';
1538 * Grotty hack to support xterm and DECterm title
1539 * sequences concurrently.
1541 if (esc_args
[0] == 2) {
1545 /* else fall through */
1547 termstate
= OSC_STRING
;
1553 * This OSC stuff is EVIL. It takes just one character to get into
1554 * sysline mode and it's not initially obvious how to get out.
1555 * So I've added CR and LF as string aborts.
1556 * This shouldn't effect compatibility as I believe embedded
1557 * control characters are supposed to be interpreted (maybe?)
1558 * and they don't display anything useful anyway.
1562 if (c
== '\n' || c
== '\r') {
1563 termstate
= TOPLEVEL
;
1564 } else if (c
== 0234 || c
== '\007' ) {
1566 * These characters terminate the string; ST and BEL
1567 * terminate the sequence and trigger instant
1568 * processing of it, whereas ESC goes back to SEEN_ESC
1569 * mode unless it is followed by \, in which case it is
1570 * synonymous with ST in the first place.
1573 termstate
= TOPLEVEL
;
1574 } else if (c
== '\033')
1575 termstate
= OSC_MAYBE_ST
;
1576 else if (osc_strlen
< OSC_STR_MAX
)
1577 osc_string
[osc_strlen
++] = c
;
1581 int max
= (osc_strlen
== 0 ?
21 : 16);
1583 if (c
>= '0' && c
<= '9')
1585 else if (c
>= 'A' && c
<= 'A'+max
-10)
1587 else if (c
>= 'a' && c
<= 'a'+max
-10)
1590 termstate
= TOPLEVEL
;
1591 osc_string
[osc_strlen
++] = val
;
1592 if (osc_strlen
>= 7) {
1593 palette_set (osc_string
[0],
1594 osc_string
[1] * 16 + osc_string
[2],
1595 osc_string
[3] * 16 + osc_string
[4],
1596 osc_string
[5] * 16 + osc_string
[6]);
1598 termstate
= TOPLEVEL
;
1604 case '0': case '1': case '2': case '3': case '4':
1605 case '5': case '6': case '7': case '8': case '9':
1606 esc_args
[0] = 10 * esc_args
[0] + c
- '0';
1609 termstate
= OSC_STRING
;
1616 unsigned long nlattr
;
1622 n
= rows
* (cols
+1);
1624 *p
++ = ATTR_DEFAULT
| 'E';
1626 seen_disp_event
= TRUE
;
1627 check_selection (scrtop
, scrtop
+ rows
* (cols
+1));
1630 case '3': nlattr
= LATTR_TOP
; if(0) {
1631 case '4': nlattr
= LATTR_BOT
; } if(0) {
1632 case '5': nlattr
= LATTR_NORM
; } if(0) {
1633 case '6': nlattr
= LATTR_WIDE
; }
1635 p
= scrtop
+ curs_y
* (cols
+1) + cols
;
1640 termstate
= TOPLEVEL
;
1643 termstate
= TOPLEVEL
;
1644 seen_disp_event
= TRUE
;
1647 move (curs_x
, curs_y
- 1, 1);
1650 move (curs_x
, curs_y
+ 1, 1);
1653 move (curs_x
+ 1, curs_y
, 1);
1656 move (curs_x
- 1, curs_y
, 1);
1659 cset_attr
[cset
=0] = ATTR_LINEDRW
;
1662 cset_attr
[cset
=0] = ATTR_ASCII
;
1669 scroll (0, rows
-1, -1, TRUE
);
1670 else if (curs_y
> 0)
1676 erase_lots(FALSE
, FALSE
, TRUE
);
1680 erase_lots(TRUE
, FALSE
, TRUE
);
1683 /* XXX Print cursor line */
1686 /* XXX Start controller mode */
1689 /* XXX Stop controller mode */
1692 termstate
= VT52_Y1
;
1695 ldisc
->send ("\033/Z", 3);
1698 app_keypad_keys
= TRUE
;
1701 app_keypad_keys
= FALSE
;
1704 /* XXX This should switch to VT100 mode not current or default
1705 * VT mode. But this will only have effect in a VT220+
1711 /* XXX Enter auto print mode */
1714 /* XXX Exit auto print mode */
1717 /* XXX Print screen */
1722 termstate
= VT52_Y2
;
1723 move(curs_x
, c
-' ', 0);
1726 termstate
= TOPLEVEL
;
1727 move(c
-' ', curs_y
, 0);
1730 if (selstate
!= NO_SELECTION
)
1731 check_selection (cpos
, cpos
+1);
1737 if(!beep_count
) beep_overload
=0;
1739 else if(beep_count
&& beep_count
<5 && cfg
.beep
)
1744 * Compare two lines to determine whether they are sufficiently
1745 * alike to scroll-optimise one to the other. Return the degree of
1748 static int linecmp (unsigned long *a
, unsigned long *b
) {
1751 for (i
=n
=0; i
< cols
; i
++)
1752 n
+= (*a
++ == *b
++);
1757 * Given a context, update the window. Out of paranoia, we don't
1758 * allow WM_PAINT responses to do scrolling optimisations.
1760 static void do_paint (Context ctx
, int may_optimise
){
1761 int i
, j
, start
, our_curs_y
;
1762 unsigned long attr
, rv
, cursor
;
1767 if (blinker
|| !cfg
.blink_cur
)
1768 cursor
= ATTR_ACTCURS
;
1773 cursor
= ATTR_PASCURS
;
1776 rv
= (rvideo ? ATTR_REVERSE
: 0);
1777 our_curs_y
= curs_y
+ (scrtop
- disptop
) / (cols
+1);
1779 for (i
=0; i
<rows
; i
++) {
1780 int idx
= i
*(cols
+1);
1781 int lattr
= (disptop
[idx
+cols
] & LATTR_MODE
);
1782 for (j
=0; j
<=cols
; j
++,idx
++) {
1783 unsigned long *d
= disptop
+idx
;
1784 wanttext
[idx
] = lattr
| ((*d
^ rv
1785 ^ (selstart
<= d
&& d
< selend ?
1786 ATTR_REVERSE
: 0)) |
1787 (i
==our_curs_y
&& j
==curs_x ? cursor
: 0));
1789 if (blink_is_real
) {
1790 if (has_focus
&& tblinker
&& (wanttext
[idx
]&ATTR_BLINK
) )
1792 wanttext
[idx
] &= ATTR_MASK
;
1793 wanttext
[idx
] += ' ';
1795 wanttext
[idx
] &= ~ATTR_BLINK
;
1801 * We would perform scrolling optimisations in here, if they
1802 * didn't have a nasty tendency to cause the whole sodding
1803 * program to hang for a second at speed-critical moments.
1804 * We'll leave it well alone...
1807 for (i
=0; i
<rows
; i
++) {
1808 int idx
= i
*(cols
+1);
1809 int lattr
= (wanttext
[idx
+cols
] & LATTR_MODE
);
1811 for (j
=0; j
<=cols
; j
++,idx
++) {
1812 unsigned long t
= wanttext
[idx
];
1813 int needs_update
= (j
< cols
&& t
!= disptext
[idx
]);
1814 int keep_going
= (start
!= -1 && needs_update
&&
1815 (t
& ATTR_MASK
) == attr
&&
1816 j
-start
< sizeof(ch
));
1817 if (start
!= -1 && !keep_going
) {
1818 do_text (ctx
, start
, i
, ch
, j
-start
, attr
, lattr
);
1824 attr
= t
& ATTR_MASK
;
1826 ch
[j
-start
] = (char) (t
& CHAR_MASK
);
1834 * Flick the switch that says if blinking things should be shown or hidden.
1837 void term_blink(int flg
) {
1838 static long last_blink
= 0;
1839 static long last_tblink
= 0;
1840 long now
, blink_diff
;
1842 now
= GetTickCount();
1843 blink_diff
= now
-last_tblink
;
1845 /* Make sure the text blinks no more than 2Hz */
1846 if (blink_diff
<0 || blink_diff
>450)
1849 tblinker
= !tblinker
;
1858 blink_diff
= now
-last_blink
;
1860 /* Make sure the cursor blinks no more than 2Hz */
1861 if (blink_diff
>=0 && blink_diff
<450)
1869 * Invalidate the whole screen so it will be repainted in full.
1871 void term_invalidate(void) {
1874 for (i
=0; i
<rows
*(cols
+1); i
++)
1875 disptext
[i
] = ATTR_INVALID
;
1879 * Paint the window in response to a WM_PAINT message.
1881 void term_paint (Context ctx
, int l
, int t
, int r
, int b
) {
1882 int i
, j
, left
, top
, right
, bottom
;
1884 left
= l
/ font_width
;
1885 right
= (r
- 1) / font_width
;
1886 top
= t
/ font_height
;
1887 bottom
= (b
- 1) / font_height
;
1888 for (i
= top
; i
<= bottom
&& i
< rows
; i
++)
1890 if ( (disptext
[i
*(cols
+1)+cols
]&LATTR_MODE
) == LATTR_NORM
)
1891 for (j
= left
; j
<= right
&& j
< cols
; j
++)
1892 disptext
[i
*(cols
+1)+j
] = ATTR_INVALID
;
1894 for (j
= left
/2; j
<= right
/2+1 && j
< cols
; j
++)
1895 disptext
[i
*(cols
+1)+j
] = ATTR_INVALID
;
1898 /* This should happen soon enough, also for some reason it sometimes
1899 * fails to actually do anything when re-sizing ... painting the wrong
1901 do_paint (ctx, FALSE);
1906 * Attempt to scroll the scrollback. The second parameter gives the
1907 * position we want to scroll to; the first is +1 to denote that
1908 * this position is relative to the beginning of the scrollback, -1
1909 * to denote it is relative to the end, and 0 to denote that it is
1910 * relative to the current position.
1912 void term_scroll (int rel
, int where
) {
1913 int n
= where
* (cols
+1);
1915 disptop
= (rel
< 0 ? scrtop
:
1916 rel
> 0 ? sbtop
: disptop
) + n
;
1917 if (disptop
< sbtop
)
1919 if (disptop
> scrtop
)
1926 * Spread the selection outwards according to the selection mode.
1928 static unsigned long *sel_spread_half (unsigned long *p
, int dir
) {
1929 unsigned long *linestart
, *lineend
;
1933 x
= (p
- text
) % (cols
+1);
1935 lineend
= linestart
+ cols
;
1940 * In this mode, every character is a separate unit, except
1941 * for runs of spaces at the end of a non-wrapping line.
1943 if (!(linestart
[cols
] & ATTR_WRAPPED
)) {
1944 unsigned long *q
= lineend
;
1945 while (q
> linestart
&& (q
[-1] & CHAR_MASK
) == 0x20)
1950 p
= (dir
== -1 ? q
: lineend
- 1);
1955 * In this mode, the units are maximal runs of characters
1956 * whose `wordness' has the same value.
1958 wvalue
= wordness
[*p
& CHAR_MASK
];
1960 while (p
< lineend
&& wordness
[p
[1] & CHAR_MASK
] == wvalue
)
1963 while (p
> linestart
&& wordness
[p
[-1] & CHAR_MASK
] == wvalue
)
1969 * In this mode, every line is a unit.
1971 p
= (dir
== -1 ? linestart
: lineend
- 1);
1977 static void sel_spread (void) {
1978 selstart
= sel_spread_half (selstart
, -1);
1979 selend
= sel_spread_half (selend
- 1, +1) + 1;
1982 void term_mouse (Mouse_Button b
, Mouse_Action a
, int x
, int y
) {
1983 unsigned long *selpoint
;
1986 if (y
>=rows
) y
= rows
-1;
1994 if (x
>=cols
) x
= cols
-1;
1996 selpoint
= disptop
+ y
* (cols
+1);
1997 if ((selpoint
[cols
]&LATTR_MODE
) != LATTR_NORM
)
2002 if (b
== MB_SELECT
&& a
== MA_CLICK
) {
2004 selstate
= ABOUT_TO
;
2005 selanchor
= selpoint
;
2007 } else if (b
== MB_SELECT
&& (a
== MA_2CLK
|| a
== MA_3CLK
)) {
2009 selmode
= (a
== MA_2CLK ? SM_WORD
: SM_LINE
);
2010 selstate
= DRAGGING
;
2011 selstart
= selanchor
= selpoint
;
2012 selend
= selstart
+ 1;
2014 } else if ((b
== MB_SELECT
&& a
== MA_DRAG
) ||
2015 (b
== MB_EXTEND
&& a
!= MA_RELEASE
)) {
2016 if (selstate
== ABOUT_TO
&& selanchor
== selpoint
)
2018 if (b
== MB_EXTEND
&& a
!= MA_DRAG
&& selstate
== SELECTED
) {
2019 if (selpoint
-selstart
< (selend
-selstart
)/2)
2020 selanchor
= selend
- 1;
2022 selanchor
= selstart
;
2023 selstate
= DRAGGING
;
2025 if (selstate
!= ABOUT_TO
&& selstate
!= DRAGGING
)
2026 selanchor
= selpoint
;
2027 selstate
= DRAGGING
;
2028 if (selpoint
< selanchor
) {
2029 selstart
= selpoint
;
2030 selend
= selanchor
+ 1;
2032 selstart
= selanchor
;
2033 selend
= selpoint
+ 1;
2036 } else if ((b
== MB_SELECT
|| b
== MB_EXTEND
) && a
== MA_RELEASE
) {
2037 if (selstate
== DRAGGING
) {
2039 * We've completed a selection. We now transfer the
2040 * data to the clipboard.
2042 unsigned char *p
= selspace
;
2043 unsigned long *q
= selstart
;
2045 while (q
< selend
) {
2047 unsigned long *lineend
= q
- (q
-text
) % (cols
+1) + cols
;
2048 unsigned long *nlpos
= lineend
;
2050 if (!(*nlpos
& ATTR_WRAPPED
)) {
2051 while ((nlpos
[-1] & CHAR_MASK
) == 0x20 && nlpos
> q
)
2056 while (q
< nlpos
&& q
< selend
)
2058 /* VT Specials -> ISO8859-1 */
2059 static const char poorman2
[] =
2060 "* # HTFFCRLF\xB0 \xB1 NLVT+ + + + + - - - - - + + + + | <=>=PI!=\xA3 \xB7 ";
2062 int ch
= (*q
& CHAR_MASK
);
2064 if ((*q
& ATTR_LINEDRW
) && ch
>= 0x60 && ch
< 0x7F )
2067 *p
++ = poorman2
[2*(ch
-0x60)];
2068 if ( (x
= poorman2
[2*(ch
-0x60)+1]) != ' ')
2072 else if ((*q
& ATTR_GBCHR
) && ch
== '#')
2073 *p
++ = (unsigned char) 0xA3;
2076 *p
++ = (unsigned char) ch
;
2081 for (i
=0; i
<sizeof(sel_nl
); i
++)
2084 q
= lineend
+ 1; /* start of next line */
2086 write_clip (selspace
, p
- selspace
, FALSE
);
2087 selstate
= SELECTED
;
2089 selstate
= NO_SELECTION
;
2090 } else if (b
== MB_PASTE
&& (a
==MA_CLICK
|| a
==MA_2CLK
|| a
==MA_3CLK
)) {
2094 get_clip((void **) &data
, &len
);
2098 if (paste_buffer
) sfree(paste_buffer
);
2099 paste_pos
= paste_hold
= paste_len
= 0;
2100 paste_buffer
= smalloc(len
);
2103 while (p
< data
+len
) {
2104 while (p
< data
+len
&&
2105 !(p
<= data
+len
-sizeof(sel_nl
) &&
2106 !memcmp(p
, sel_nl
, sizeof(sel_nl
))))
2114 c
=xlat_kbd2tty(q
[i
]);
2115 paste_buffer
[paste_len
++] = c
;
2119 if (p
<= data
+len
-sizeof(sel_nl
) &&
2120 !memcmp(p
, sel_nl
, sizeof(sel_nl
))) {
2121 paste_buffer
[paste_len
++] = '\r';
2122 p
+= sizeof(sel_nl
);
2127 /* Assume a small paste will be OK in one go. */
2128 if (paste_len
<256) {
2129 ldisc
->send (paste_buffer
, paste_len
);
2130 if (paste_buffer
) sfree(paste_buffer
);
2132 paste_pos
= paste_hold
= paste_len
= 0;
2135 get_clip(NULL
, NULL
);
2141 void term_nopaste() {
2142 if(paste_len
== 0) return;
2143 sfree(paste_buffer
);
2149 static long last_paste
= 0;
2150 long now
, paste_diff
;
2152 if(paste_len
== 0) return;
2154 /* Don't wait forever to paste */
2156 now
= GetTickCount();
2157 paste_diff
= now
-last_paste
;
2158 if (paste_diff
>=0 && paste_diff
<450)
2163 while(paste_pos
<paste_len
)
2165 char c
= paste_buffer
[paste_pos
++];
2166 ldisc
->send (&c
, 1);
2173 sfree(paste_buffer
);
2178 static void deselect (void) {
2179 selstate
= NO_SELECTION
;
2180 selstart
= selend
= scrtop
;
2183 void term_deselect (void) {