374330e2 |
1 | #include <windows.h> |
2 | |
3 | #include <stdio.h> |
4 | #include <stdlib.h> |
5 | |
6 | #include "putty.h" |
7 | |
e14a5a13 |
8 | #define CL_ANSIMIN 0x0001 /* Everybody has these even MSDOS */ |
9 | #define CL_VT100 0x0002 /* VT100 */ |
10 | #define CL_VT100AVO 0x0004 /* VT100 +AVO; 132x24 (not 132x14) & attrs */ |
11 | #define CL_VT102 0x0008 /* VT102 */ |
12 | #define CL_VT220 0x0010 /* VT220 */ |
13 | #define CL_VT320 0x0020 /* VT320 */ |
14 | #define CL_VT420 0x0040 /* VT420 */ |
15 | #define CL_VT510 0x0080 /* VT510, NB VT510 includes ANSI */ |
16 | #define CL_VT340TEXT 0x0100 /* VT340 extensions that appear in the VT420 */ |
17 | #define CL_ANSI 0x1000 /* ANSI ECMA-48 not in the VT100..VT420 */ |
18 | #define CL_OTHER 0x2000 /* Others, Xterm, linux, putty, dunno, etc */ |
19 | |
20 | #define TM_ANSIMIN (CL_ANSIMIN) |
21 | #define TM_VT100 (CL_ANSIMIN+CL_VT100) |
22 | #define TM_VT100AVO (TM_VT100+CL_VT100AVO) |
23 | #define TM_VT102 (TM_VT100AVO+CL_VT102) |
24 | #define TM_PUTTY (-1) |
25 | |
26 | #define compatibility(x) \ |
27 | if ( ((CL_##x)&compatibility_level) == 0 ) { \ |
28 | termstate=TOPLEVEL; \ |
29 | break; \ |
30 | } |
31 | |
32 | #define has_compat(x) ( ((CL_##x)&compatibility_level) != 0 ) |
33 | |
34 | static int compatibility_level = TM_PUTTY; |
35 | |
36 | |
374330e2 |
37 | static unsigned long *text; /* buffer of text on terminal screen */ |
38 | static unsigned long *scrtop; /* top of working screen */ |
39 | static unsigned long *disptop; /* top of displayed screen */ |
40 | static unsigned long *sbtop; /* top of scrollback */ |
41 | static unsigned long *cpos; /* cursor position (convenience) */ |
42 | static unsigned long *disptext; /* buffer of text on real screen */ |
43 | static unsigned long *wanttext; /* buffer of text we want on screen */ |
44 | static unsigned long *alttext; /* buffer of text on alt. screen */ |
45 | |
46 | static unsigned char *selspace; /* buffer for building selections in */ |
47 | |
48 | #define TSIZE (sizeof(*text)) |
49 | #define fix_cpos do { cpos = scrtop + curs_y * (cols+1) + curs_x; } while(0) |
50 | |
51 | static unsigned long curr_attr, save_attr; |
e14a5a13 |
52 | static unsigned long erase_char = ERASE_CHAR; |
374330e2 |
53 | |
54 | static int curs_x, curs_y; /* cursor */ |
55 | static int save_x, save_y; /* saved cursor position */ |
56 | static int marg_t, marg_b; /* scroll margins */ |
57 | static int dec_om; /* DEC origin mode flag */ |
58 | static int wrap, wrapnext; /* wrap flags */ |
59 | static int insert; /* insert-mode flag */ |
60 | static int cset; /* 0 or 1: which char set */ |
61 | static int save_cset, save_csattr; /* saved with cursor position */ |
62 | static int rvideo; /* global reverse video flag */ |
e14a5a13 |
63 | static int cursor_on; /* cursor enabled flag */ |
64 | static int reset_132; /* Flag ESC c resets to 80 cols */ |
65 | static int use_bce; /* Use Background coloured erase */ |
66 | static int blinker; /* When blinking is the cursor on ? */ |
67 | static int vt52_mode; /* Is VT100+ in vt52 mode ? */ |
374330e2 |
68 | |
69 | static unsigned long cset_attr[2]; |
70 | |
71 | /* |
72 | * Saved settings on the alternate screen. |
73 | */ |
74 | static int alt_x, alt_y, alt_om, alt_wrap, alt_wnext, alt_ins, alt_cset; |
75 | static int alt_t, alt_b; |
76 | static int alt_which; |
77 | |
78 | #define ARGS_MAX 32 /* max # of esc sequence arguments */ |
064916ea |
79 | #define ARG_DEFAULT 0 /* if an arg isn't specified */ |
374330e2 |
80 | #define def(a,d) ( (a) == ARG_DEFAULT ? (d) : (a) ) |
81 | static int esc_args[ARGS_MAX]; |
82 | static int esc_nargs; |
83 | static int esc_query; |
8b811b12 |
84 | #define ANSI(x,y) ((x)+((y)<<8)) |
85 | #define ANSI_QUE(x) ANSI(x,TRUE) |
374330e2 |
86 | |
87 | #define OSC_STR_MAX 2048 |
88 | static int osc_strlen; |
89 | static char osc_string[OSC_STR_MAX+1]; |
90 | static int osc_w; |
91 | |
92 | static unsigned char *tabs; |
93 | |
374330e2 |
94 | static enum { |
cabfd08c |
95 | TOPLEVEL, |
96 | SEEN_ESC, |
97 | SEEN_CSI, |
98 | SEEN_OSC, |
99 | SEEN_OSC_W, |
100 | |
101 | DO_CTRLS, |
102 | |
103 | IGNORE_NEXT, |
104 | SET_GL, SET_GR, |
105 | SEEN_OSC_P, |
106 | OSC_STRING, OSC_MAYBE_ST, |
e14a5a13 |
107 | SEEN_ESCHASH, |
108 | VT52_ESC, |
109 | VT52_Y1, |
110 | VT52_Y2 |
374330e2 |
111 | } termstate; |
112 | |
113 | static enum { |
114 | NO_SELECTION, ABOUT_TO, DRAGGING, SELECTED |
115 | } selstate; |
116 | static enum { |
117 | SM_CHAR, SM_WORD, SM_LINE |
118 | } selmode; |
119 | static unsigned long *selstart, *selend, *selanchor; |
120 | |
121 | static short wordness[256] = { |
122 | 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 */ |
123 | 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 */ |
124 | 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 */ |
125 | 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 */ |
126 | 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 */ |
127 | 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 */ |
128 | 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 */ |
129 | 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 */ |
130 | }; |
131 | |
132 | static unsigned char sel_nl[] = SEL_NL; |
133 | |
134 | /* |
135 | * Internal prototypes. |
136 | */ |
137 | static void do_paint (Context, int); |
138 | static void erase_lots (int, int, int); |
139 | static void swap_screen (int); |
140 | static void update_sbar (void); |
141 | static void deselect (void); |
142 | |
143 | /* |
144 | * Set up power-on settings for the terminal. |
145 | */ |
146 | static void power_on(void) { |
147 | curs_x = curs_y = alt_x = alt_y = save_x = save_y = 0; |
148 | alt_t = marg_t = 0; |
149 | if (rows != -1) |
150 | alt_b = marg_b = rows - 1; |
151 | else |
152 | alt_b = marg_b = 0; |
153 | if (cols != -1) { |
154 | int i; |
155 | for (i = 0; i < cols; i++) |
156 | tabs[i] = (i % 8 == 0 ? TRUE : FALSE); |
157 | } |
158 | alt_om = dec_om = cfg.dec_om; |
159 | alt_wnext = wrapnext = alt_ins = insert = FALSE; |
160 | alt_wrap = wrap = cfg.wrap_mode; |
161 | alt_cset = cset = 0; |
162 | cset_attr[0] = cset_attr[1] = ATTR_ASCII; |
163 | rvideo = 0; |
e14a5a13 |
164 | cursor_on = 1; |
374330e2 |
165 | save_attr = curr_attr = ATTR_DEFAULT; |
166 | app_cursor_keys = cfg.app_cursor; |
167 | app_keypad_keys = cfg.app_keypad; |
e14a5a13 |
168 | use_bce = 0; |
169 | erase_char = ERASE_CHAR; |
374330e2 |
170 | alt_which = 0; |
171 | { |
172 | int i; |
173 | for (i = 0; i < 256; i++) |
174 | wordness[i] = cfg.wordness[i]; |
175 | } |
176 | if (text) { |
177 | swap_screen (1); |
178 | erase_lots (FALSE, TRUE, TRUE); |
179 | swap_screen (0); |
180 | erase_lots (FALSE, TRUE, TRUE); |
181 | } |
182 | } |
183 | |
184 | /* |
185 | * Force a screen update. |
186 | */ |
187 | void term_update(void) { |
188 | Context ctx; |
189 | ctx = get_ctx(); |
190 | if (ctx) { |
0b961e0a |
191 | if ( (seen_key_event && (unscroll_event & US_KEY)) || |
cabfd08c |
192 | (seen_disp_event && (unscroll_event & US_DISP)) ) { |
193 | disptop = scrtop; |
194 | seen_disp_event = seen_key_event = 0; |
195 | } |
374330e2 |
196 | do_paint (ctx, TRUE); |
197 | free_ctx (ctx); |
374330e2 |
198 | } |
199 | } |
200 | |
201 | /* |
202 | * Same as power_on(), but an external function. |
203 | */ |
204 | void term_pwron(void) { |
205 | power_on(); |
206 | fix_cpos; |
207 | disptop = scrtop; |
208 | deselect(); |
209 | term_update(); |
210 | } |
211 | |
212 | /* |
213 | * Clear the scrollback. |
214 | */ |
215 | void term_clrsb(void) { |
216 | disptop = sbtop = scrtop; |
217 | update_sbar(); |
218 | } |
219 | |
220 | /* |
221 | * Initialise the terminal. |
222 | */ |
223 | void term_init(void) { |
224 | text = sbtop = scrtop = disptop = cpos = NULL; |
225 | disptext = wanttext = NULL; |
226 | tabs = NULL; |
227 | selspace = NULL; |
228 | deselect(); |
229 | rows = cols = -1; |
374330e2 |
230 | power_on(); |
231 | } |
232 | |
233 | /* |
234 | * Set up the terminal for a given size. |
235 | */ |
236 | void term_size(int newrows, int newcols, int newsavelines) { |
237 | unsigned long *newtext, *newdisp, *newwant, *newalt; |
238 | int i, j, crows, ccols; |
239 | |
d6832394 |
240 | int save_alt_which = alt_which; |
241 | |
374330e2 |
242 | if (newrows == rows && newcols == cols && newsavelines == savelines) |
243 | return; /* nothing to do */ |
244 | |
d6832394 |
245 | deselect(); |
246 | swap_screen(0); |
247 | |
374330e2 |
248 | alt_t = marg_t = 0; |
249 | alt_b = marg_b = newrows - 1; |
250 | |
251 | newtext = smalloc ((newrows+newsavelines)*(newcols+1)*TSIZE); |
252 | disptop = newtext + newsavelines*(newcols+1); |
253 | for (i=0; i<(newrows+newsavelines)*(newcols+1); i++) |
254 | newtext[i] = ERASE_CHAR; |
255 | if (rows != -1) { |
256 | crows = rows + (scrtop - sbtop) / (cols+1); |
257 | if (crows > newrows+newsavelines) |
258 | crows = newrows+newsavelines; |
259 | ccols = (cols < newcols ? cols : newcols); |
260 | for (i=0; i<crows; i++) { |
261 | int oldidx = (rows + savelines - crows + i) * (cols+1); |
262 | int newidx = (newrows + newsavelines - crows + i) * (newcols+1); |
263 | for (j=0; j<ccols; j++) |
264 | newtext[newidx+j] = text[oldidx+j]; |
265 | newtext[newidx+newcols] = |
266 | (cols == newcols ? text[oldidx+cols] : 0); |
267 | } |
268 | sbtop = disptop - (crows - newrows) * (newcols+1); |
269 | if (sbtop > disptop) |
270 | sbtop = disptop; |
271 | } else |
272 | sbtop = disptop; |
273 | scrtop = disptop; |
274 | sfree (text); |
275 | text = newtext; |
276 | |
277 | newdisp = smalloc (newrows*(newcols+1)*TSIZE); |
278 | for (i=0; i<newrows*(newcols+1); i++) |
279 | newdisp[i] = ATTR_INVALID; |
280 | sfree (disptext); |
281 | disptext = newdisp; |
282 | |
283 | newwant = smalloc (newrows*(newcols+1)*TSIZE); |
284 | for (i=0; i<newrows*(newcols+1); i++) |
285 | newwant[i] = ATTR_INVALID; |
286 | sfree (wanttext); |
287 | wanttext = newwant; |
288 | |
289 | newalt = smalloc (newrows*(newcols+1)*TSIZE); |
290 | for (i=0; i<newrows*(newcols+1); i++) |
e14a5a13 |
291 | newalt[i] = erase_char; |
374330e2 |
292 | sfree (alttext); |
293 | alttext = newalt; |
294 | |
295 | sfree (selspace); |
296 | selspace = smalloc ( (newrows+newsavelines) * (newcols+sizeof(sel_nl)) ); |
297 | |
298 | tabs = srealloc (tabs, newcols*sizeof(*tabs)); |
299 | { |
300 | int i; |
301 | for (i = (cols > 0 ? cols : 0); i < newcols; i++) |
302 | tabs[i] = (i % 8 == 0 ? TRUE : FALSE); |
303 | } |
304 | |
305 | if (rows > 0) |
306 | curs_y += newrows - rows; |
307 | if (curs_y < 0) |
308 | curs_y = 0; |
309 | if (curs_y >= newrows) |
310 | curs_y = newrows-1; |
311 | if (curs_x >= newcols) |
312 | curs_x = newcols-1; |
313 | alt_x = alt_y = 0; |
314 | wrapnext = alt_wnext = FALSE; |
315 | |
316 | rows = newrows; |
317 | cols = newcols; |
318 | savelines = newsavelines; |
319 | fix_cpos; |
320 | |
d6832394 |
321 | swap_screen(save_alt_which); |
322 | |
374330e2 |
323 | update_sbar(); |
324 | term_update(); |
325 | } |
326 | |
327 | /* |
328 | * Swap screens. |
329 | */ |
330 | static void swap_screen (int which) { |
331 | int t; |
332 | unsigned long tt; |
333 | |
334 | if (which == alt_which) |
335 | return; |
336 | |
337 | alt_which = which; |
338 | |
339 | for (t=0; t<rows*(cols+1); t++) { |
340 | tt = scrtop[t]; scrtop[t] = alttext[t]; alttext[t] = tt; |
341 | } |
342 | |
343 | t = curs_x; curs_x = alt_x; alt_x = t; |
344 | t = curs_y; curs_y = alt_y; alt_y = t; |
345 | t = marg_t; marg_t = alt_t; alt_t = t; |
346 | t = marg_b; marg_b = alt_b; alt_b = t; |
347 | t = dec_om; dec_om = alt_om; alt_om = t; |
348 | t = wrap; wrap = alt_wrap; alt_wrap = t; |
349 | t = wrapnext; wrapnext = alt_wnext; alt_wnext = t; |
350 | t = insert; insert = alt_ins; alt_ins = t; |
351 | t = cset; cset = alt_cset; alt_cset = t; |
352 | |
353 | fix_cpos; |
354 | } |
355 | |
356 | /* |
357 | * Retrieve a character from `inbuf'. |
358 | */ |
359 | static int inbuf_getc(void) { |
360 | if (inbuf_head == inbuf_reap) |
361 | return -1; /* EOF */ |
362 | else { |
363 | int n = inbuf_reap; |
364 | inbuf_reap = (inbuf_reap+1) & INBUF_MASK; |
365 | return inbuf[n]; |
366 | } |
367 | } |
368 | |
369 | /* |
370 | * Update the scroll bar. |
371 | */ |
372 | static void update_sbar(void) { |
373 | int min; |
374 | |
375 | min = (sbtop - text) / (cols+1); |
376 | set_sbar ((scrtop - text) / (cols+1) + rows - min, |
377 | (disptop - text) / (cols+1) - min, |
378 | rows); |
379 | } |
380 | |
381 | /* |
382 | * Check whether the region bounded by the two pointers intersects |
383 | * the scroll region, and de-select the on-screen selection if so. |
384 | */ |
385 | static void check_selection (unsigned long *from, unsigned long *to) { |
386 | if (from < selend && selstart < to) |
387 | deselect(); |
388 | } |
389 | |
390 | /* |
391 | * Scroll the screen. (`lines' is +ve for scrolling forward, -ve |
392 | * for backward.) `sb' is TRUE if the scrolling is permitted to |
393 | * affect the scrollback buffer. |
394 | */ |
395 | static void scroll (int topline, int botline, int lines, int sb) { |
396 | unsigned long *scroll_top; |
397 | int scroll_size, size, i; |
398 | |
399 | scroll_top = scrtop + topline*(cols+1); |
400 | size = (lines < 0 ? -lines : lines) * (cols+1); |
401 | scroll_size = (botline - topline + 1) * (cols+1) - size; |
402 | |
cabfd08c |
403 | if (lines > 0 && topline == 0 && alt_which == 0 && sb) { |
374330e2 |
404 | /* |
cabfd08c |
405 | * Since we're going to scroll the top line and we're on the |
406 | * scrolling screen let's also affect the scrollback buffer. |
374330e2 |
407 | */ |
408 | sbtop -= lines * (cols+1); |
409 | if (sbtop < text) |
410 | sbtop = text; |
411 | scroll_size += scroll_top - sbtop; |
412 | scroll_top = sbtop; |
413 | update_sbar(); |
414 | } |
415 | |
416 | if (scroll_size < 0) { |
417 | size += scroll_size; |
418 | scroll_size = 0; |
419 | } |
420 | |
421 | if (lines > 0) { |
422 | if (scroll_size) |
423 | memmove (scroll_top, scroll_top + size, scroll_size*TSIZE); |
424 | for (i = 0; i < size; i++) |
e14a5a13 |
425 | scroll_top[i+scroll_size] = erase_char; |
374330e2 |
426 | if (selstart > scroll_top && |
427 | selstart < scroll_top + size + scroll_size) { |
428 | selstart -= size; |
429 | if (selstart < scroll_top) |
430 | selstart = scroll_top; |
431 | } |
432 | if (selend > scroll_top && |
433 | selend < scroll_top + size + scroll_size) { |
434 | selend -= size; |
435 | if (selend < scroll_top) |
436 | selend = scroll_top; |
437 | } |
438 | } else { |
439 | if (scroll_size) |
440 | memmove (scroll_top + size, scroll_top, scroll_size*TSIZE); |
441 | for (i = 0; i < size; i++) |
e14a5a13 |
442 | scroll_top[i] = erase_char; |
374330e2 |
443 | if (selstart > scroll_top && |
444 | selstart < scroll_top + size + scroll_size) { |
445 | selstart += size; |
446 | if (selstart > scroll_top + size + scroll_size) |
447 | selstart = scroll_top + size + scroll_size; |
448 | } |
449 | if (selend > scroll_top && |
450 | selend < scroll_top + size + scroll_size) { |
451 | selend += size; |
452 | if (selend > scroll_top + size + scroll_size) |
453 | selend = scroll_top + size + scroll_size; |
454 | } |
455 | } |
374330e2 |
456 | } |
457 | |
458 | /* |
459 | * Move the cursor to a given position, clipping at boundaries. We |
460 | * may or may not want to clip at the scroll margin: marg_clip is 0 |
461 | * not to, 1 to disallow _passing_ the margins, and 2 to disallow |
462 | * even _being_ outside the margins. |
463 | */ |
464 | static void move (int x, int y, int marg_clip) { |
465 | if (x < 0) |
466 | x = 0; |
467 | if (x >= cols) |
468 | x = cols-1; |
469 | if (marg_clip) { |
470 | if ((curs_y >= marg_t || marg_clip == 2) && y < marg_t) |
471 | y = marg_t; |
472 | if ((curs_y <= marg_b || marg_clip == 2) && y > marg_b) |
473 | y = marg_b; |
474 | } |
475 | if (y < 0) |
476 | y = 0; |
477 | if (y >= rows) |
478 | y = rows-1; |
479 | curs_x = x; |
480 | curs_y = y; |
481 | fix_cpos; |
482 | wrapnext = FALSE; |
483 | } |
484 | |
485 | /* |
486 | * Save or restore the cursor and SGR mode. |
487 | */ |
488 | static void save_cursor(int save) { |
489 | if (save) { |
490 | save_x = curs_x; |
491 | save_y = curs_y; |
492 | save_attr = curr_attr; |
493 | save_cset = cset; |
494 | save_csattr = cset_attr[cset]; |
495 | } else { |
496 | curs_x = save_x; |
497 | curs_y = save_y; |
498 | curr_attr = save_attr; |
499 | cset = save_cset; |
500 | cset_attr[cset] = save_csattr; |
501 | fix_cpos; |
e14a5a13 |
502 | if (use_bce) erase_char = (' ' |(curr_attr&(ATTR_FGMASK|ATTR_BGMASK))); |
374330e2 |
503 | } |
504 | } |
505 | |
506 | /* |
507 | * Erase a large portion of the screen: the whole screen, or the |
508 | * whole line, or parts thereof. |
509 | */ |
510 | static void erase_lots (int line_only, int from_begin, int to_end) { |
511 | unsigned long *startpos, *endpos; |
512 | |
513 | if (line_only) { |
514 | startpos = cpos - curs_x; |
515 | endpos = startpos + cols+1; |
516 | } else { |
517 | startpos = scrtop; |
518 | endpos = startpos + rows * (cols+1); |
519 | } |
520 | if (!from_begin) |
521 | startpos = cpos; |
522 | if (!to_end) |
e14a5a13 |
523 | endpos = cpos+1; |
374330e2 |
524 | check_selection (startpos, endpos); |
e14a5a13 |
525 | |
526 | /* Clear screen also forces a full window redraw, just in case. */ |
527 | if (startpos == scrtop && endpos == scrtop + rows * (cols+1)) |
528 | term_invalidate(); |
529 | |
374330e2 |
530 | while (startpos < endpos) |
e14a5a13 |
531 | *startpos++ = erase_char; |
374330e2 |
532 | } |
533 | |
534 | /* |
535 | * Insert or delete characters within the current line. n is +ve if |
536 | * insertion is desired, and -ve for deletion. |
537 | */ |
538 | static void insch (int n) { |
539 | int dir = (n < 0 ? -1 : +1); |
540 | int m; |
541 | |
542 | n = (n < 0 ? -n : n); |
543 | if (n > cols - curs_x) |
544 | n = cols - curs_x; |
545 | m = cols - curs_x - n; |
546 | check_selection (cpos, cpos+n); |
547 | if (dir < 0) { |
548 | memmove (cpos, cpos+n, m*TSIZE); |
549 | while (n--) |
e14a5a13 |
550 | cpos[m++] = erase_char; |
374330e2 |
551 | } else { |
552 | memmove (cpos+n, cpos, m*TSIZE); |
553 | while (n--) |
e14a5a13 |
554 | cpos[n] = erase_char; |
374330e2 |
555 | } |
556 | } |
557 | |
558 | /* |
559 | * Toggle terminal mode `mode' to state `state'. (`query' indicates |
560 | * whether the mode is a DEC private one or a normal one.) |
561 | */ |
562 | static void toggle_mode (int mode, int query, int state) { |
563 | if (query) switch (mode) { |
564 | case 1: /* application cursor keys */ |
565 | app_cursor_keys = state; |
566 | break; |
e14a5a13 |
567 | case 2: /* VT52 mode */ |
568 | vt52_mode = !state; |
569 | break; |
374330e2 |
570 | case 3: /* 80/132 columns */ |
571 | deselect(); |
e14a5a13 |
572 | request_resize (state ? 132 : 80, rows, 1); |
573 | reset_132 = state; |
374330e2 |
574 | break; |
575 | case 5: /* reverse video */ |
576 | rvideo = state; |
cabfd08c |
577 | seen_disp_event = TRUE; |
e14a5a13 |
578 | if (state) term_update(); |
374330e2 |
579 | break; |
580 | case 6: /* DEC origin mode */ |
581 | dec_om = state; |
582 | break; |
583 | case 7: /* auto wrap */ |
584 | wrap = state; |
585 | break; |
e14a5a13 |
586 | case 25: /* enable/disable cursor */ |
587 | compatibility(VT220); |
588 | cursor_on = state; |
589 | seen_disp_event = TRUE; |
590 | break; |
374330e2 |
591 | case 47: /* alternate screen */ |
e14a5a13 |
592 | compatibility(OTHER); |
374330e2 |
593 | deselect(); |
594 | swap_screen (state); |
595 | disptop = scrtop; |
596 | break; |
597 | } else switch (mode) { |
598 | case 4: /* set insert mode */ |
e14a5a13 |
599 | compatibility(VT102); |
374330e2 |
600 | insert = state; |
601 | break; |
e14a5a13 |
602 | case 12: /* set echo mode */ |
603 | /* |
604 | * This may be very good in smcup and rmcup (or smkx & rmkx) if you |
605 | * have a long RTT and the telnet client/daemon doesn't understand |
606 | * linemode. |
607 | * |
608 | * DONT send TS_RECHO/TS_LECHO; the telnet daemon tries to fix the |
609 | * tty and _really_ confuses some programs. |
610 | */ |
611 | compatibility(VT220); |
612 | ldisc = (state? &ldisc_simple : &ldisc_term); |
613 | break; |
374330e2 |
614 | } |
615 | } |
616 | |
617 | /* |
618 | * Process an OSC sequence: set window title or icon name. |
619 | */ |
620 | static void do_osc(void) { |
621 | if (osc_w) { |
622 | while (osc_strlen--) |
623 | wordness[(unsigned char)osc_string[osc_strlen]] = esc_args[0]; |
624 | } else { |
625 | osc_string[osc_strlen] = '\0'; |
626 | switch (esc_args[0]) { |
627 | case 0: |
628 | case 1: |
629 | set_icon (osc_string); |
630 | if (esc_args[0] == 1) |
631 | break; |
632 | /* fall through: parameter 0 means set both */ |
633 | case 2: |
634 | case 21: |
635 | set_title (osc_string); |
636 | break; |
637 | } |
638 | } |
639 | } |
640 | |
641 | /* |
642 | * Remove everything currently in `inbuf' and stick it up on the |
643 | * in-memory display. There's a big state machine in here to |
644 | * process escape sequences... |
645 | */ |
646 | void term_out(void) { |
647 | int c; |
374330e2 |
648 | |
649 | while ( (c = inbuf_getc()) != -1) { |
5fd04f07 |
650 | /* |
651 | * Optionally log the session traffic to a file. Useful for |
652 | * debugging and possibly also useful for actual logging. |
653 | */ |
654 | if (logfile) { |
374330e2 |
655 | static FILE *fp = NULL; |
5fd04f07 |
656 | if (!fp) fp = fopen(logfile, "wb"); |
374330e2 |
657 | if (fp) fputc (c, fp); |
658 | } |
e14a5a13 |
659 | /* Note only VT220+ are 8-bit VT102 is seven bit, it shouldn't even |
660 | * be able to display 8-bit characters, but I'll let that go 'cause |
661 | * of i18n. |
662 | */ |
663 | if( (c&0x60) == 0 && termstate < DO_CTRLS && |
664 | ( (c&0x80) == 0 || has_compat(VT220))) { |
374330e2 |
665 | switch (c) { |
666 | case '\005': /* terminal type query */ |
e14a5a13 |
667 | /* Strictly speaking this is VT100 but a VT100 defaults to |
668 | * no response. Other terminals respond at their option. |
669 | * |
670 | * Don't put a CR in the default string as this tends to |
671 | * upset some weird software. |
672 | * |
673 | * An xterm returns "xterm" (5 characters) |
674 | */ |
675 | compatibility(OTHER); |
676 | ldisc->send ("PuTTY", 5); |
374330e2 |
677 | break; |
678 | case '\007': |
679 | beep(); |
680 | disptop = scrtop; |
374330e2 |
681 | break; |
682 | case '\b': |
683 | if (curs_x == 0 && curs_y > 0) |
684 | curs_x = cols-1, curs_y--; |
685 | else if (wrapnext) |
686 | wrapnext = FALSE; |
687 | else |
688 | curs_x--; |
689 | fix_cpos; |
cabfd08c |
690 | seen_disp_event = TRUE; |
374330e2 |
691 | break; |
692 | case '\016': |
e14a5a13 |
693 | compatibility(VT100); |
374330e2 |
694 | cset = 1; |
695 | break; |
696 | case '\017': |
e14a5a13 |
697 | compatibility(VT100); |
374330e2 |
698 | cset = 0; |
699 | break; |
700 | case '\033': |
e14a5a13 |
701 | if (vt52_mode) |
702 | termstate = VT52_ESC; |
703 | else { |
704 | compatibility(ANSIMIN); |
705 | termstate = SEEN_ESC; |
706 | } |
374330e2 |
707 | break; |
708 | case 0233: |
e14a5a13 |
709 | compatibility(VT220); |
374330e2 |
710 | termstate = SEEN_CSI; |
711 | esc_nargs = 1; |
712 | esc_args[0] = ARG_DEFAULT; |
713 | esc_query = FALSE; |
714 | break; |
715 | case 0235: |
e14a5a13 |
716 | compatibility(VT220); |
374330e2 |
717 | termstate = SEEN_OSC; |
718 | esc_args[0] = 0; |
719 | break; |
720 | case '\r': |
721 | curs_x = 0; |
722 | wrapnext = FALSE; |
723 | fix_cpos; |
cabfd08c |
724 | seen_disp_event = TRUE; |
374330e2 |
725 | break; |
726 | case '\013': |
727 | case '\014': |
e14a5a13 |
728 | compatibility(VT100); |
374330e2 |
729 | case '\n': |
730 | if (curs_y == marg_b) |
731 | scroll (marg_t, marg_b, 1, TRUE); |
732 | else if (curs_y < rows-1) |
733 | curs_y++; |
cabfd08c |
734 | if (cfg.lfhascr) |
735 | curs_x = 0; |
374330e2 |
736 | fix_cpos; |
737 | wrapnext = FALSE; |
cabfd08c |
738 | seen_disp_event = 1; |
374330e2 |
739 | break; |
740 | case '\t': |
741 | do { |
742 | curs_x++; |
743 | } while (curs_x < cols-1 && !tabs[curs_x]); |
744 | if (curs_x >= cols) |
745 | curs_x = cols-1; |
746 | { |
747 | unsigned long *old_cpos = cpos; |
748 | fix_cpos; |
749 | check_selection (old_cpos, cpos); |
750 | } |
cabfd08c |
751 | seen_disp_event = TRUE; |
374330e2 |
752 | break; |
cabfd08c |
753 | } |
754 | } |
755 | else switch (termstate) { |
756 | case TOPLEVEL: |
8b811b12 |
757 | /* Only graphic characters get this far, ctrls are stripped above */ |
758 | if (wrapnext) { |
759 | cpos[1] = ATTR_WRAPPED; |
760 | if (curs_y == marg_b) |
761 | scroll (marg_t, marg_b, 1, TRUE); |
762 | else if (curs_y < rows-1) |
763 | curs_y++; |
764 | curs_x = 0; |
765 | fix_cpos; |
766 | wrapnext = FALSE; |
8b811b12 |
767 | } |
768 | if (insert) |
769 | insch (1); |
e14a5a13 |
770 | if (selstate != NO_SELECTION) |
771 | check_selection (cpos, cpos+1); |
772 | switch (cset_attr[cset]) { |
773 | /* Linedraw characters are different from 'ESC ( B' only |
774 | * for a small range, for ones outside that range make sure |
775 | * we use the same font as well as the same encoding. |
776 | */ |
777 | case ATTR_LINEDRW: |
778 | if (c<0x60 || c>0x7F) |
779 | *cpos++ = xlat_tty2scr((unsigned char)c) | curr_attr | |
780 | ATTR_ASCII; |
781 | else |
782 | *cpos++ = ((unsigned char)c) | curr_attr | ATTR_LINEDRW; |
783 | break; |
784 | default: |
785 | *cpos++ = xlat_tty2scr((unsigned char)c) | curr_attr | |
786 | (c <= 0x7F ? cset_attr[cset] : ATTR_ASCII); |
787 | break; |
788 | } |
8b811b12 |
789 | curs_x++; |
790 | if (curs_x == cols) { |
791 | cpos--; |
792 | curs_x--; |
793 | wrapnext = wrap; |
374330e2 |
794 | } |
8b811b12 |
795 | seen_disp_event = 1; |
374330e2 |
796 | break; |
cabfd08c |
797 | |
374330e2 |
798 | case IGNORE_NEXT: |
799 | termstate = TOPLEVEL; |
800 | break; |
801 | case OSC_MAYBE_ST: |
802 | /* |
803 | * This state is virtually identical to SEEN_ESC, with the |
804 | * exception that we have an OSC sequence in the pipeline, |
805 | * and _if_ we see a backslash, we process it. |
806 | */ |
807 | if (c == '\\') { |
808 | do_osc(); |
809 | termstate = TOPLEVEL; |
810 | break; |
811 | } |
812 | /* else fall through */ |
813 | case SEEN_ESC: |
814 | termstate = TOPLEVEL; |
815 | switch (c) { |
374330e2 |
816 | case ' ': /* some weird sequence? */ |
e14a5a13 |
817 | compatibility(VT220); |
374330e2 |
818 | termstate = IGNORE_NEXT; |
819 | break; |
820 | case '[': /* enter CSI mode */ |
821 | termstate = SEEN_CSI; |
822 | esc_nargs = 1; |
823 | esc_args[0] = ARG_DEFAULT; |
824 | esc_query = FALSE; |
825 | break; |
826 | case ']': /* xterm escape sequences */ |
e14a5a13 |
827 | /* Compatibility is nasty here, xterm, linux, decterm yuk! */ |
828 | compatibility(OTHER); |
374330e2 |
829 | termstate = SEEN_OSC; |
830 | esc_args[0] = 0; |
831 | break; |
832 | case '(': /* should set GL */ |
e14a5a13 |
833 | compatibility(VT100); |
374330e2 |
834 | termstate = SET_GL; |
835 | break; |
836 | case ')': /* should set GR */ |
e14a5a13 |
837 | compatibility(VT100); |
374330e2 |
838 | termstate = SET_GR; |
839 | break; |
840 | case '7': /* save cursor */ |
e14a5a13 |
841 | compatibility(VT100); |
374330e2 |
842 | save_cursor (TRUE); |
843 | break; |
844 | case '8': /* restore cursor */ |
e14a5a13 |
845 | compatibility(VT100); |
374330e2 |
846 | save_cursor (FALSE); |
cabfd08c |
847 | seen_disp_event = TRUE; |
374330e2 |
848 | break; |
849 | case '=': |
e14a5a13 |
850 | compatibility(VT100); |
374330e2 |
851 | app_keypad_keys = TRUE; |
852 | break; |
853 | case '>': |
e14a5a13 |
854 | compatibility(VT100); |
374330e2 |
855 | app_keypad_keys = FALSE; |
856 | break; |
857 | case 'D': /* exactly equivalent to LF */ |
e14a5a13 |
858 | compatibility(VT100); |
374330e2 |
859 | if (curs_y == marg_b) |
860 | scroll (marg_t, marg_b, 1, TRUE); |
861 | else if (curs_y < rows-1) |
862 | curs_y++; |
863 | fix_cpos; |
864 | wrapnext = FALSE; |
cabfd08c |
865 | seen_disp_event = TRUE; |
374330e2 |
866 | break; |
867 | case 'E': /* exactly equivalent to CR-LF */ |
e14a5a13 |
868 | compatibility(VT100); |
374330e2 |
869 | curs_x = 0; |
870 | wrapnext = FALSE; |
871 | if (curs_y == marg_b) |
872 | scroll (marg_t, marg_b, 1, TRUE); |
873 | else if (curs_y < rows-1) |
874 | curs_y++; |
875 | fix_cpos; |
876 | wrapnext = FALSE; |
cabfd08c |
877 | seen_disp_event = TRUE; |
374330e2 |
878 | break; |
879 | case 'M': /* reverse index - backwards LF */ |
e14a5a13 |
880 | compatibility(VT100); |
374330e2 |
881 | if (curs_y == marg_t) |
882 | scroll (marg_t, marg_b, -1, TRUE); |
883 | else if (curs_y > 0) |
884 | curs_y--; |
885 | fix_cpos; |
886 | wrapnext = FALSE; |
cabfd08c |
887 | seen_disp_event = TRUE; |
374330e2 |
888 | break; |
889 | case 'Z': /* terminal type query */ |
e14a5a13 |
890 | compatibility(VT100); |
5bc238bb |
891 | ldisc->send ("\033[?6c", 5); |
374330e2 |
892 | break; |
893 | case 'c': /* restore power-on settings */ |
e14a5a13 |
894 | compatibility(VT100); |
374330e2 |
895 | power_on(); |
e14a5a13 |
896 | if (reset_132) { |
897 | request_resize (80, rows, 1); |
898 | reset_132 = 0; |
899 | } |
374330e2 |
900 | fix_cpos; |
901 | disptop = scrtop; |
cabfd08c |
902 | seen_disp_event = TRUE; |
374330e2 |
903 | break; |
904 | case '#': /* ESC # 8 fills screen with Es :-) */ |
e14a5a13 |
905 | compatibility(VT100); |
374330e2 |
906 | termstate = SEEN_ESCHASH; |
907 | break; |
908 | case 'H': /* set a tab */ |
e14a5a13 |
909 | compatibility(VT100); |
374330e2 |
910 | tabs[curs_x] = TRUE; |
911 | break; |
912 | } |
913 | break; |
914 | case SEEN_CSI: |
915 | termstate = TOPLEVEL; /* default */ |
8b811b12 |
916 | if( isdigit(c) ) |
917 | { |
374330e2 |
918 | if (esc_nargs <= ARGS_MAX) { |
919 | if (esc_args[esc_nargs-1] == ARG_DEFAULT) |
920 | esc_args[esc_nargs-1] = 0; |
921 | esc_args[esc_nargs-1] = |
922 | 10 * esc_args[esc_nargs-1] + c - '0'; |
923 | } |
924 | termstate = SEEN_CSI; |
8b811b12 |
925 | } |
926 | else if( c == ';' ) |
927 | { |
374330e2 |
928 | if (++esc_nargs <= ARGS_MAX) |
929 | esc_args[esc_nargs-1] = ARG_DEFAULT; |
930 | termstate = SEEN_CSI; |
8b811b12 |
931 | } |
932 | else if( c < '@' ) |
933 | { |
934 | if( esc_query ) esc_query = -1; |
935 | else if( c == '?' ) esc_query = TRUE; |
936 | else esc_query = c; |
374330e2 |
937 | termstate = SEEN_CSI; |
8b811b12 |
938 | } |
939 | else switch (ANSI(c,esc_query)) { |
374330e2 |
940 | case 'A': /* move up N lines */ |
941 | move (curs_x, curs_y - def(esc_args[0], 1), 1); |
cabfd08c |
942 | seen_disp_event = TRUE; |
374330e2 |
943 | break; |
e14a5a13 |
944 | case 'e': /* move down N lines */ |
945 | compatibility(ANSI); |
946 | case 'B': |
374330e2 |
947 | move (curs_x, curs_y + def(esc_args[0], 1), 1); |
cabfd08c |
948 | seen_disp_event = TRUE; |
374330e2 |
949 | break; |
e14a5a13 |
950 | case 'a': /* move right N cols */ |
951 | compatibility(ANSI); |
952 | case 'C': |
374330e2 |
953 | move (curs_x + def(esc_args[0], 1), curs_y, 1); |
cabfd08c |
954 | seen_disp_event = TRUE; |
374330e2 |
955 | break; |
956 | case 'D': /* move left N cols */ |
957 | move (curs_x - def(esc_args[0], 1), curs_y, 1); |
cabfd08c |
958 | seen_disp_event = TRUE; |
374330e2 |
959 | break; |
960 | case 'E': /* move down N lines and CR */ |
e14a5a13 |
961 | compatibility(ANSI); |
374330e2 |
962 | move (0, curs_y + def(esc_args[0], 1), 1); |
cabfd08c |
963 | seen_disp_event = TRUE; |
374330e2 |
964 | break; |
965 | case 'F': /* move up N lines and CR */ |
e14a5a13 |
966 | compatibility(ANSI); |
374330e2 |
967 | move (0, curs_y - def(esc_args[0], 1), 1); |
cabfd08c |
968 | seen_disp_event = TRUE; |
374330e2 |
969 | break; |
970 | case 'G': case '`': /* set horizontal posn */ |
e14a5a13 |
971 | compatibility(ANSI); |
374330e2 |
972 | move (def(esc_args[0], 1) - 1, curs_y, 0); |
cabfd08c |
973 | seen_disp_event = TRUE; |
374330e2 |
974 | break; |
975 | case 'd': /* set vertical posn */ |
e14a5a13 |
976 | compatibility(ANSI); |
374330e2 |
977 | move (curs_x, (dec_om ? marg_t : 0) + def(esc_args[0], 1) - 1, |
978 | (dec_om ? 2 : 0)); |
cabfd08c |
979 | seen_disp_event = TRUE; |
374330e2 |
980 | break; |
981 | case 'H': case 'f': /* set horz and vert posns at once */ |
982 | if (esc_nargs < 2) |
983 | esc_args[1] = ARG_DEFAULT; |
984 | move (def(esc_args[1], 1) - 1, |
985 | (dec_om ? marg_t : 0) + def(esc_args[0], 1) - 1, |
986 | (dec_om ? 2 : 0)); |
cabfd08c |
987 | seen_disp_event = TRUE; |
374330e2 |
988 | break; |
989 | case 'J': /* erase screen or parts of it */ |
990 | { |
991 | unsigned int i = def(esc_args[0], 0) + 1; |
992 | if (i > 3) |
993 | i = 0; |
994 | erase_lots(FALSE, !!(i & 2), !!(i & 1)); |
995 | } |
996 | disptop = scrtop; |
cabfd08c |
997 | seen_disp_event = TRUE; |
374330e2 |
998 | break; |
999 | case 'K': /* erase line or parts of it */ |
1000 | { |
1001 | unsigned int i = def(esc_args[0], 0) + 1; |
1002 | if (i > 3) |
1003 | i = 0; |
1004 | erase_lots(TRUE, !!(i & 2), !!(i & 1)); |
1005 | } |
cabfd08c |
1006 | seen_disp_event = TRUE; |
374330e2 |
1007 | break; |
1008 | case 'L': /* insert lines */ |
e14a5a13 |
1009 | compatibility(VT102); |
374330e2 |
1010 | if (curs_y <= marg_b) |
1011 | scroll (curs_y, marg_b, -def(esc_args[0], 1), FALSE); |
cabfd08c |
1012 | seen_disp_event = TRUE; |
374330e2 |
1013 | break; |
1014 | case 'M': /* delete lines */ |
e14a5a13 |
1015 | compatibility(VT102); |
374330e2 |
1016 | if (curs_y <= marg_b) |
cabfd08c |
1017 | scroll (curs_y, marg_b, def(esc_args[0], 1), TRUE); |
1018 | seen_disp_event = TRUE; |
374330e2 |
1019 | break; |
1020 | case '@': /* insert chars */ |
e14a5a13 |
1021 | /* XXX VTTEST says this is vt220, vt510 manual says vt102 */ |
1022 | compatibility(VT102); |
374330e2 |
1023 | insch (def(esc_args[0], 1)); |
cabfd08c |
1024 | seen_disp_event = TRUE; |
374330e2 |
1025 | break; |
1026 | case 'P': /* delete chars */ |
e14a5a13 |
1027 | compatibility(VT102); |
374330e2 |
1028 | insch (-def(esc_args[0], 1)); |
cabfd08c |
1029 | seen_disp_event = TRUE; |
374330e2 |
1030 | break; |
1031 | case 'c': /* terminal type query */ |
e14a5a13 |
1032 | compatibility(VT100); |
1033 | /* This is the response for a VT102 */ |
5bc238bb |
1034 | ldisc->send ("\033[?6c", 5); |
374330e2 |
1035 | break; |
1036 | case 'n': /* cursor position query */ |
1037 | if (esc_args[0] == 6) { |
e14a5a13 |
1038 | /* Wonder of wonders ANSI.SYS has this!! */ |
374330e2 |
1039 | char buf[32]; |
1040 | sprintf (buf, "\033[%d;%dR", curs_y + 1, curs_x + 1); |
5bc238bb |
1041 | ldisc->send (buf, strlen(buf)); |
374330e2 |
1042 | } |
e14a5a13 |
1043 | else if (esc_args[0] == 5) { |
1044 | /* Are we working ... well I suppose so :-) */ |
1045 | /* But ANSI.SYS doesn't say it's working :-) :-) */ |
1046 | compatibility(VT100); |
1047 | ldisc->send ("\033[0n", 4); |
1048 | } |
374330e2 |
1049 | break; |
e14a5a13 |
1050 | case 'h': /* toggle modes to high */ |
8b811b12 |
1051 | case ANSI_QUE('h'): |
e14a5a13 |
1052 | compatibility(VT100); |
1053 | { |
1054 | int i; |
1055 | for (i=0; i<esc_nargs; i++) |
1056 | toggle_mode (esc_args[i], esc_query, TRUE); |
1057 | } |
374330e2 |
1058 | break; |
e14a5a13 |
1059 | case 'l': /* toggle modes to low */ |
8b811b12 |
1060 | case ANSI_QUE('l'): |
e14a5a13 |
1061 | compatibility(VT100); |
1062 | { |
1063 | int i; |
1064 | for (i=0; i<esc_nargs; i++) |
1065 | toggle_mode (esc_args[i], esc_query, FALSE); |
1066 | } |
374330e2 |
1067 | break; |
1068 | case 'g': /* clear tabs */ |
e14a5a13 |
1069 | compatibility(VT100); |
374330e2 |
1070 | if (esc_nargs == 1) { |
1071 | if (esc_args[0] == 0) { |
1072 | tabs[curs_x] = FALSE; |
1073 | } else if (esc_args[0] == 3) { |
1074 | int i; |
1075 | for (i = 0; i < cols; i++) |
1076 | tabs[i] = FALSE; |
1077 | } |
1078 | } |
1079 | break; |
1080 | case 'r': /* set scroll margins */ |
e14a5a13 |
1081 | compatibility(VT100); |
8b811b12 |
1082 | if (esc_nargs <= 2) { |
374330e2 |
1083 | int top, bot; |
e14a5a13 |
1084 | /* VTTEST Bug 9 if the first arg is default _or_ zero |
1085 | * this is a full screen region irrespective of 2nd arg. |
1086 | */ |
1087 | if (esc_args[0] <= 0) { |
1088 | top=0; |
1089 | bot=rows-1; |
1090 | } else { |
1091 | top = def(esc_args[0], 1) - 1; |
1092 | bot = (esc_nargs <= 1 || esc_args[1] == 0 ? rows : |
1093 | def(esc_args[1], rows)) - 1; |
1094 | } |
374330e2 |
1095 | if (bot >= rows) |
1096 | bot = rows-1; |
1097 | if (top <= bot) { |
1098 | marg_t = top; |
1099 | marg_b = bot; |
1100 | curs_x = 0; |
1101 | /* |
1102 | * I used to think the cursor should be |
1103 | * placed at the top of the newly marginned |
1104 | * area. Apparently not: VMS TPU falls over |
1105 | * if so. |
e14a5a13 |
1106 | * |
1107 | * Well actually it should for Origin mode - RDB |
374330e2 |
1108 | */ |
e14a5a13 |
1109 | curs_y = (dec_om ? marg_t : 0); |
374330e2 |
1110 | fix_cpos; |
cabfd08c |
1111 | seen_disp_event = TRUE; |
374330e2 |
1112 | } |
1113 | } |
1114 | break; |
1115 | case 'm': /* set graphics rendition */ |
1116 | { |
e14a5a13 |
1117 | /* |
1118 | * A VT100 without the AVO only had one attribute, either |
1119 | * underline or reverse video depending on the cursor type, |
1120 | * this was selected by CSI 7m. |
1121 | * |
1122 | * case 2: |
1123 | * This is DIM on the VT100-AVO and VT102 |
1124 | * case 5: |
1125 | * This is BLINK on the VT100-AVO and VT102+ |
1126 | * case 8: |
1127 | * This is INVIS on the VT100-AVO and VT102 |
1128 | * case 21: |
1129 | * This like 22 disables BOLD, DIM and INVIS |
1130 | * |
1131 | * The ANSI colours appear on any terminal that has colour |
1132 | * (obviously) but the interaction between sgr0 and the |
1133 | * colours varies but is usually related to the background |
1134 | * colour erase item. |
1135 | * The interaction between colour attributes and the mono |
1136 | * ones is also very implementation dependent. |
1137 | * |
1138 | * The 39 and 49 attributes are likely to be unimplemented. |
1139 | */ |
374330e2 |
1140 | int i; |
1141 | for (i=0; i<esc_nargs; i++) { |
1142 | switch (def(esc_args[i], 0)) { |
1143 | case 0: /* restore defaults */ |
1144 | curr_attr = ATTR_DEFAULT; break; |
1145 | case 1: /* enable bold */ |
e14a5a13 |
1146 | compatibility(VT100AVO); |
374330e2 |
1147 | curr_attr |= ATTR_BOLD; break; |
374330e2 |
1148 | case 21: /* (enable double underline) */ |
e14a5a13 |
1149 | compatibility(OTHER); |
1150 | case 4: /* enable underline */ |
1151 | compatibility(VT100AVO); |
374330e2 |
1152 | curr_attr |= ATTR_UNDER; break; |
e14a5a13 |
1153 | case 5: /* enable blink */ |
1154 | compatibility(VT100AVO); |
1155 | curr_attr |= ATTR_BLINK; break; |
374330e2 |
1156 | case 7: /* enable reverse video */ |
1157 | curr_attr |= ATTR_REVERSE; break; |
1158 | case 22: /* disable bold */ |
e14a5a13 |
1159 | compatibility(VT220); |
374330e2 |
1160 | curr_attr &= ~ATTR_BOLD; break; |
1161 | case 24: /* disable underline */ |
e14a5a13 |
1162 | compatibility(VT220); |
374330e2 |
1163 | curr_attr &= ~ATTR_UNDER; break; |
e14a5a13 |
1164 | case 25: /* disable blink */ |
1165 | compatibility(VT220); |
1166 | curr_attr &= ~ATTR_BLINK; break; |
374330e2 |
1167 | case 27: /* disable reverse video */ |
e14a5a13 |
1168 | compatibility(VT220); |
374330e2 |
1169 | curr_attr &= ~ATTR_REVERSE; break; |
1170 | case 30: case 31: case 32: case 33: |
1171 | case 34: case 35: case 36: case 37: |
1172 | /* foreground */ |
1173 | curr_attr &= ~ATTR_FGMASK; |
1174 | curr_attr |= (esc_args[i] - 30) << ATTR_FGSHIFT; |
1175 | break; |
1176 | case 39: /* default-foreground */ |
1177 | curr_attr &= ~ATTR_FGMASK; |
1178 | curr_attr |= ATTR_DEFFG; |
1179 | break; |
1180 | case 40: case 41: case 42: case 43: |
1181 | case 44: case 45: case 46: case 47: |
1182 | /* background */ |
1183 | curr_attr &= ~ATTR_BGMASK; |
1184 | curr_attr |= (esc_args[i] - 40) << ATTR_BGSHIFT; |
1185 | break; |
1186 | case 49: /* default-background */ |
1187 | curr_attr &= ~ATTR_BGMASK; |
1188 | curr_attr |= ATTR_DEFBG; |
1189 | break; |
1190 | } |
1191 | } |
e14a5a13 |
1192 | if (use_bce) |
1193 | erase_char = (' '|(curr_attr&(ATTR_FGMASK|ATTR_BGMASK))); |
374330e2 |
1194 | } |
1195 | break; |
1196 | case 's': /* save cursor */ |
1197 | save_cursor (TRUE); |
1198 | break; |
1199 | case 'u': /* restore cursor */ |
1200 | save_cursor (FALSE); |
cabfd08c |
1201 | seen_disp_event = TRUE; |
374330e2 |
1202 | break; |
1203 | case 't': /* set page size - ie window height */ |
e14a5a13 |
1204 | /* |
1205 | * VT340/VT420 sequence DECSLPP, DEC only allows values |
1206 | * 24/25/36/48/72/144 other emulators (eg dtterm) use |
1207 | * illegal values (eg first arg 1..9) for window changing |
1208 | * and reports. |
1209 | */ |
1210 | compatibility(VT340TEXT); |
1211 | if (esc_nargs<=1 && (esc_args[0]<1 || esc_args[0]>=24)) { |
1212 | request_resize (cols, def(esc_args[0], 24), 0); |
1213 | deselect(); |
1214 | } |
1215 | break; |
1216 | case ANSI('|', '*'): |
1217 | /* VT420 sequence DECSNLS |
1218 | * Set number of lines on screen |
1219 | * VT420 uses VGA like hardware and can support any size in |
1220 | * reasonable range (24..49 AIUI) with no default specified. |
1221 | */ |
1222 | compatibility(VT420); |
1223 | if (esc_nargs==1 && esc_args[0]>=24) { |
1224 | request_resize (cols, def(esc_args[0], cfg.height), 0); |
1225 | deselect(); |
1226 | } |
1227 | break; |
1228 | case ANSI('|', '$'): |
1229 | /* VT340/VT420 sequence DECSCPP |
1230 | * Set number of columns per page |
1231 | * Docs imply range is only 80 or 132, but I'll allow any. |
1232 | */ |
1233 | compatibility(VT340TEXT); |
1234 | if (esc_nargs<=1) { |
1235 | request_resize (cols, def(esc_args[0], cfg.width), 0); |
1236 | deselect(); |
1237 | } |
374330e2 |
1238 | break; |
1239 | case 'X': /* write N spaces w/o moving cursor */ |
e14a5a13 |
1240 | /* XXX VTTEST says this is vt220, vt510 manual says vt100 */ |
1241 | compatibility(VT100); |
374330e2 |
1242 | { |
1243 | int n = def(esc_args[0], 1); |
1244 | unsigned long *p = cpos; |
1245 | if (n > cols - curs_x) |
1246 | n = cols - curs_x; |
1247 | check_selection (cpos, cpos+n); |
1248 | while (n--) |
e14a5a13 |
1249 | *p++ = erase_char; |
cabfd08c |
1250 | seen_disp_event = TRUE; |
374330e2 |
1251 | } |
1252 | break; |
1253 | case 'x': /* report terminal characteristics */ |
e14a5a13 |
1254 | compatibility(VT100); |
374330e2 |
1255 | { |
1256 | char buf[32]; |
1257 | int i = def(esc_args[0], 0); |
1258 | if (i == 0 || i == 1) { |
1259 | strcpy (buf, "\033[2;1;1;112;112;1;0x"); |
1260 | buf[2] += i; |
5bc238bb |
1261 | ldisc->send (buf, 20); |
374330e2 |
1262 | } |
1263 | } |
1264 | break; |
e14a5a13 |
1265 | case ANSI('L','='): |
1266 | compatibility(OTHER); |
1267 | use_bce = (esc_args[0]<=0); |
1268 | erase_char = ERASE_CHAR; |
1269 | if (use_bce) |
1270 | erase_char = (' '|(curr_attr&(ATTR_FGMASK|ATTR_BGMASK))); |
1271 | break; |
1272 | case ANSI('p','"'): |
1273 | /* Allow the host to make this emulator a 'perfect' VT102. |
1274 | * This first appeared in the VT220, but we do need to get |
1275 | * back to PuTTY mode so I won't check it. |
1276 | * |
1277 | * The arg == 60 is a PuTTY extension. |
1278 | * The 2nd arg, 8bit vs 7bit is not obeyed. |
1279 | * |
1280 | * Setting VT102 mode should also change the Fkeys to |
1281 | * generate PF* codes as a real VT102 has no Fkeys. |
1282 | * The VT220 does this, F11..F13 become ESC,BS,LF other Fkeys |
1283 | * send nothing. |
1284 | * |
1285 | * Note ESC c will NOT change this! |
1286 | */ |
1287 | |
1288 | if (esc_args[0] == 61) compatibility_level = TM_VT102; |
1289 | else if (esc_args[0] == 60) compatibility_level = TM_ANSIMIN; |
1290 | else compatibility_level = TM_PUTTY; |
1291 | break; |
374330e2 |
1292 | } |
1293 | break; |
1294 | case SET_GL: |
1295 | case SET_GR: |
e14a5a13 |
1296 | /* VT100 only here, checked above */ |
374330e2 |
1297 | switch (c) { |
1298 | case 'A': |
1299 | cset_attr[termstate == SET_GL ? 0 : 1] = ATTR_GBCHR; |
1300 | break; |
1301 | case '0': |
1302 | cset_attr[termstate == SET_GL ? 0 : 1] = ATTR_LINEDRW; |
1303 | break; |
e14a5a13 |
1304 | case 'B': |
374330e2 |
1305 | default: /* specifically, 'B' */ |
1306 | cset_attr[termstate == SET_GL ? 0 : 1] = ATTR_ASCII; |
1307 | break; |
1308 | } |
e14a5a13 |
1309 | if( !has_compat(VT220) || c != '%' ) |
8b811b12 |
1310 | termstate = TOPLEVEL; |
374330e2 |
1311 | break; |
1312 | case SEEN_OSC: |
1313 | osc_w = FALSE; |
1314 | switch (c) { |
374330e2 |
1315 | case 'P': /* Linux palette sequence */ |
1316 | termstate = SEEN_OSC_P; |
1317 | osc_strlen = 0; |
1318 | break; |
1319 | case 'R': /* Linux palette reset */ |
1320 | palette_reset(); |
1321 | term_invalidate(); |
1322 | termstate = TOPLEVEL; |
1323 | break; |
1324 | case 'W': /* word-set */ |
1325 | termstate = SEEN_OSC_W; |
1326 | osc_w = TRUE; |
1327 | break; |
1328 | case '0': case '1': case '2': case '3': case '4': |
1329 | case '5': case '6': case '7': case '8': case '9': |
1330 | esc_args[0] = 10 * esc_args[0] + c - '0'; |
1331 | break; |
1332 | case 'L': |
1333 | /* |
1334 | * Grotty hack to support xterm and DECterm title |
1335 | * sequences concurrently. |
1336 | */ |
1337 | if (esc_args[0] == 2) { |
1338 | esc_args[0] = 1; |
1339 | break; |
1340 | } |
1341 | /* else fall through */ |
1342 | default: |
1343 | termstate = OSC_STRING; |
1344 | osc_strlen = 0; |
1345 | } |
1346 | break; |
1347 | case OSC_STRING: |
8b811b12 |
1348 | /* |
1349 | * This OSC stuff is EVIL. It takes just one character to get into |
1350 | * sysline mode and it's not initially obvious how to get out. |
1351 | * So I've added CR and LF as string aborts. |
1352 | * This shouldn't effect compatibility as I believe embedded |
1353 | * control characters are supposed to be interpreted (maybe?) |
1354 | * and they don't display anything useful anyway. |
1355 | * |
1356 | * -- RDB |
1357 | */ |
1358 | if (c == '\n' || c == '\r') { |
1359 | termstate = TOPLEVEL; |
1360 | } else if (c == 0234 || c == '\007' ) { |
374330e2 |
1361 | /* |
1362 | * These characters terminate the string; ST and BEL |
1363 | * terminate the sequence and trigger instant |
1364 | * processing of it, whereas ESC goes back to SEEN_ESC |
1365 | * mode unless it is followed by \, in which case it is |
1366 | * synonymous with ST in the first place. |
1367 | */ |
1368 | do_osc(); |
1369 | termstate = TOPLEVEL; |
1370 | } else if (c == '\033') |
1371 | termstate = OSC_MAYBE_ST; |
1372 | else if (osc_strlen < OSC_STR_MAX) |
1373 | osc_string[osc_strlen++] = c; |
1374 | break; |
1375 | case SEEN_OSC_P: |
1376 | { |
1377 | int max = (osc_strlen == 0 ? 21 : 16); |
1378 | int val; |
1379 | if (c >= '0' && c <= '9') |
1380 | val = c - '0'; |
1381 | else if (c >= 'A' && c <= 'A'+max-10) |
1382 | val = c - 'A' + 10; |
1383 | else if (c >= 'a' && c <= 'a'+max-10) |
1384 | val = c - 'a' + 10; |
1385 | else |
1386 | termstate = TOPLEVEL; |
1387 | osc_string[osc_strlen++] = val; |
1388 | if (osc_strlen >= 7) { |
1389 | palette_set (osc_string[0], |
1390 | osc_string[1] * 16 + osc_string[2], |
1391 | osc_string[3] * 16 + osc_string[4], |
1392 | osc_string[5] * 16 + osc_string[6]); |
1393 | term_invalidate(); |
1394 | termstate = TOPLEVEL; |
1395 | } |
1396 | } |
1397 | break; |
1398 | case SEEN_OSC_W: |
1399 | switch (c) { |
374330e2 |
1400 | case '0': case '1': case '2': case '3': case '4': |
1401 | case '5': case '6': case '7': case '8': case '9': |
1402 | esc_args[0] = 10 * esc_args[0] + c - '0'; |
1403 | break; |
1404 | default: |
1405 | termstate = OSC_STRING; |
1406 | osc_strlen = 0; |
1407 | } |
1408 | break; |
1409 | case SEEN_ESCHASH: |
1410 | if (c == '8') { |
1411 | unsigned long *p = scrtop; |
1412 | int n = rows * (cols+1); |
1413 | while (n--) |
1414 | *p++ = ATTR_DEFAULT | 'E'; |
1415 | disptop = scrtop; |
cabfd08c |
1416 | seen_disp_event = TRUE; |
374330e2 |
1417 | check_selection (scrtop, scrtop + rows * (cols+1)); |
1418 | } |
1419 | termstate = TOPLEVEL; |
1420 | break; |
e14a5a13 |
1421 | case VT52_ESC: |
1422 | termstate = TOPLEVEL; |
1423 | seen_disp_event = TRUE; |
1424 | switch (c) { |
1425 | case 'A': |
1426 | move (curs_x, curs_y - 1, 1); |
1427 | break; |
1428 | case 'B': |
1429 | move (curs_x, curs_y + 1, 1); |
1430 | break; |
1431 | case 'C': |
1432 | move (curs_x + 1, curs_y, 1); |
1433 | break; |
1434 | case 'D': |
1435 | move (curs_x - 1, curs_y, 1); |
1436 | break; |
1437 | case 'F': |
1438 | cset_attr[cset=0] = ATTR_LINEDRW; |
1439 | break; |
1440 | case 'G': |
1441 | cset_attr[cset=0] = ATTR_ASCII; |
1442 | break; |
1443 | case 'H': |
1444 | move (0, 0, 0); |
1445 | break; |
1446 | case 'I': |
1447 | if (curs_y == 0) |
1448 | scroll (0, rows-1, -1, TRUE); |
1449 | else if (curs_y > 0) |
1450 | curs_y--; |
1451 | fix_cpos; |
1452 | wrapnext = FALSE; |
1453 | break; |
1454 | case 'J': |
1455 | erase_lots(FALSE, FALSE, TRUE); |
1456 | disptop = scrtop; |
1457 | break; |
1458 | case 'K': |
1459 | erase_lots(TRUE, FALSE, TRUE); |
1460 | break; |
1461 | case 'V': |
1462 | /* XXX Print cursor line */ |
1463 | break; |
1464 | case 'W': |
1465 | /* XXX Start controller mode */ |
1466 | break; |
1467 | case 'X': |
1468 | /* XXX Stop controller mode */ |
1469 | break; |
1470 | case 'Y': |
1471 | termstate = VT52_Y1; |
1472 | break; |
1473 | case 'Z': |
1474 | ldisc->send ("\033/Z", 3); |
1475 | break; |
1476 | case '=': |
1477 | app_cursor_keys = TRUE; |
1478 | break; |
1479 | case '>': |
1480 | app_cursor_keys = FALSE; |
1481 | break; |
1482 | case '<': |
1483 | /* XXX This should switch to VT100 mode not current or default |
1484 | * VT mode. But this will only have effect in a VT220+ |
1485 | * emulation. |
1486 | */ |
1487 | vt52_mode = FALSE; |
1488 | break; |
1489 | case '^': |
1490 | /* XXX Enter auto print mode */ |
1491 | break; |
1492 | case '_': |
1493 | /* XXX Exit auto print mode */ |
1494 | break; |
1495 | case ']': |
1496 | /* XXX Print screen */ |
1497 | break; |
1498 | } |
1499 | break; |
1500 | case VT52_Y1: |
1501 | termstate = VT52_Y2; |
1502 | move(curs_x, c-' ', 0); |
1503 | break; |
1504 | case VT52_Y2: |
1505 | termstate = TOPLEVEL; |
1506 | move(c-' ', curs_y, 0); |
1507 | break; |
374330e2 |
1508 | } |
e14a5a13 |
1509 | if (selstate != NO_SELECTION) |
1510 | check_selection (cpos, cpos+1); |
374330e2 |
1511 | } |
374330e2 |
1512 | } |
1513 | |
1514 | /* |
1515 | * Compare two lines to determine whether they are sufficiently |
1516 | * alike to scroll-optimise one to the other. Return the degree of |
1517 | * similarity. |
1518 | */ |
1519 | static int linecmp (unsigned long *a, unsigned long *b) { |
1520 | int i, n; |
1521 | |
1522 | for (i=n=0; i < cols; i++) |
1523 | n += (*a++ == *b++); |
1524 | return n; |
1525 | } |
1526 | |
1527 | /* |
1528 | * Given a context, update the window. Out of paranoia, we don't |
1529 | * allow WM_PAINT responses to do scrolling optimisations. |
1530 | */ |
1531 | static void do_paint (Context ctx, int may_optimise){ |
1532 | int i, j, start, our_curs_y; |
1533 | unsigned long attr, rv, cursor; |
1534 | char ch[1024]; |
1535 | |
e14a5a13 |
1536 | if (cursor_on) { |
1537 | if (has_focus) { |
217dceef |
1538 | if (blinker || !cfg.blink_cur) |
1539 | cursor = ATTR_ACTCURS; |
1540 | else |
1541 | cursor = 0; |
e14a5a13 |
1542 | } |
1543 | else |
1544 | cursor = ATTR_PASCURS; |
1545 | } |
1546 | else cursor = 0; |
374330e2 |
1547 | rv = (rvideo ? ATTR_REVERSE : 0); |
1548 | our_curs_y = curs_y + (scrtop - disptop) / (cols+1); |
1549 | |
1550 | for (i=0; i<rows; i++) { |
1551 | int idx = i*(cols+1); |
1552 | for (j=0; j<=cols; j++,idx++) { |
1553 | unsigned long *d = disptop+idx; |
1554 | wanttext[idx] = ((*d ^ rv |
1555 | ^ (selstart <= d && d < selend ? |
1556 | ATTR_REVERSE : 0)) | |
1557 | (i==our_curs_y && j==curs_x ? cursor : 0)); |
1558 | } |
1559 | } |
1560 | |
1561 | /* |
1562 | * We would perform scrolling optimisations in here, if they |
1563 | * didn't have a nasty tendency to cause the whole sodding |
1564 | * program to hang for a second at speed-critical moments. |
1565 | * We'll leave it well alone... |
1566 | */ |
1567 | |
1568 | for (i=0; i<rows; i++) { |
1569 | int idx = i*(cols+1); |
1570 | start = -1; |
1571 | for (j=0; j<=cols; j++,idx++) { |
1572 | unsigned long t = wanttext[idx]; |
1573 | int needs_update = (j < cols && t != disptext[idx]); |
1574 | int keep_going = (start != -1 && needs_update && |
1575 | (t & ATTR_MASK) == attr && |
1576 | j-start < sizeof(ch)); |
1577 | if (start != -1 && !keep_going) { |
1578 | do_text (ctx, start, i, ch, j-start, attr); |
1579 | start = -1; |
1580 | } |
1581 | if (needs_update) { |
1582 | if (start == -1) { |
1583 | start = j; |
1584 | attr = t & ATTR_MASK; |
1585 | } |
1586 | ch[j-start] = (char) (t & CHAR_MASK); |
1587 | } |
1588 | disptext[idx] = t; |
1589 | } |
1590 | } |
1591 | } |
1592 | |
1593 | /* |
e14a5a13 |
1594 | * Flick the switch that says if blinking things should be shown or hidden. |
1595 | */ |
1596 | |
1597 | void term_blink(int flg) { |
1598 | static long last_blink = 0; |
1599 | long now, blink_diff; |
1600 | |
1601 | if (flg) { |
1602 | blinker = 1; |
1603 | last_blink = GetTickCount(); |
1604 | return; |
1605 | } |
1606 | now = GetTickCount(); |
1607 | |
1608 | blink_diff = now-last_blink; |
1609 | |
1610 | /* Make sure the cursor blinks no more than 2Hz */ |
1611 | if (blink_diff>=0 && blink_diff<450) |
1612 | return; |
1613 | |
1614 | last_blink = now; |
1615 | blinker = !blinker; |
1616 | } |
1617 | |
1618 | /* |
374330e2 |
1619 | * Invalidate the whole screen so it will be repainted in full. |
1620 | */ |
1621 | void term_invalidate(void) { |
1622 | int i; |
1623 | |
1624 | for (i=0; i<rows*(cols+1); i++) |
1625 | disptext[i] = ATTR_INVALID; |
1626 | } |
1627 | |
1628 | /* |
1629 | * Paint the window in response to a WM_PAINT message. |
1630 | */ |
1631 | void term_paint (Context ctx, int l, int t, int r, int b) { |
1632 | int i, j, left, top, right, bottom; |
1633 | |
1634 | left = l / font_width; |
1635 | right = (r - 1) / font_width; |
1636 | top = t / font_height; |
1637 | bottom = (b - 1) / font_height; |
e42ad027 |
1638 | for (i = top; i <= bottom && i < rows ; i++) |
1639 | for (j = left; j <= right && j < cols ; j++) |
374330e2 |
1640 | disptext[i*(cols+1)+j] = ATTR_INVALID; |
1641 | |
e14a5a13 |
1642 | /* This should happen soon enough, also for some reason it sometimes |
1643 | * fails to actually do anything when re-sizing ... painting the wrong |
1644 | * window perhaps ? |
374330e2 |
1645 | do_paint (ctx, FALSE); |
e14a5a13 |
1646 | */ |
374330e2 |
1647 | } |
1648 | |
1649 | /* |
1650 | * Attempt to scroll the scrollback. The second parameter gives the |
1651 | * position we want to scroll to; the first is +1 to denote that |
1652 | * this position is relative to the beginning of the scrollback, -1 |
1653 | * to denote it is relative to the end, and 0 to denote that it is |
1654 | * relative to the current position. |
1655 | */ |
1656 | void term_scroll (int rel, int where) { |
1657 | int n = where * (cols+1); |
1658 | |
1659 | disptop = (rel < 0 ? scrtop : |
1660 | rel > 0 ? sbtop : disptop) + n; |
1661 | if (disptop < sbtop) |
1662 | disptop = sbtop; |
1663 | if (disptop > scrtop) |
1664 | disptop = scrtop; |
1665 | update_sbar(); |
1666 | term_update(); |
1667 | } |
1668 | |
1669 | /* |
1670 | * Spread the selection outwards according to the selection mode. |
1671 | */ |
1672 | static unsigned long *sel_spread_half (unsigned long *p, int dir) { |
1673 | unsigned long *linestart, *lineend; |
1674 | int x; |
1675 | short wvalue; |
1676 | |
1677 | x = (p - text) % (cols+1); |
1678 | linestart = p - x; |
1679 | lineend = linestart + cols; |
1680 | |
1681 | switch (selmode) { |
1682 | case SM_CHAR: |
1683 | /* |
1684 | * In this mode, every character is a separate unit, except |
1685 | * for runs of spaces at the end of a non-wrapping line. |
1686 | */ |
1687 | if (!(linestart[cols] & ATTR_WRAPPED)) { |
1688 | unsigned long *q = lineend; |
1689 | while (q > linestart && (q[-1] & CHAR_MASK) == 0x20) |
1690 | q--; |
1691 | if (q == lineend) |
1692 | q--; |
1693 | if (p >= q) |
1694 | p = (dir == -1 ? q : lineend - 1); |
1695 | } |
1696 | break; |
1697 | case SM_WORD: |
1698 | /* |
1699 | * In this mode, the units are maximal runs of characters |
1700 | * whose `wordness' has the same value. |
1701 | */ |
1702 | wvalue = wordness[*p & CHAR_MASK]; |
1703 | if (dir == +1) { |
1704 | while (p < lineend && wordness[p[1] & CHAR_MASK] == wvalue) |
1705 | p++; |
1706 | } else { |
1707 | while (p > linestart && wordness[p[-1] & CHAR_MASK] == wvalue) |
1708 | p--; |
1709 | } |
1710 | break; |
1711 | case SM_LINE: |
1712 | /* |
1713 | * In this mode, every line is a unit. |
1714 | */ |
1715 | p = (dir == -1 ? linestart : lineend - 1); |
1716 | break; |
1717 | } |
1718 | return p; |
1719 | } |
1720 | |
1721 | static void sel_spread (void) { |
1722 | selstart = sel_spread_half (selstart, -1); |
1723 | selend = sel_spread_half (selend - 1, +1) + 1; |
1724 | } |
1725 | |
1726 | void term_mouse (Mouse_Button b, Mouse_Action a, int x, int y) { |
37508af4 |
1727 | unsigned long *selpoint; |
1728 | |
1729 | if (y<0) y = 0; |
1730 | if (y>=rows) y = rows-1; |
094ed2a6 |
1731 | if (x<0) { |
1732 | if (y > 0) { |
1733 | x = cols-1; |
1734 | y--; |
1735 | } else |
1736 | x = 0; |
1737 | } |
37508af4 |
1738 | if (x>=cols) x = cols-1; |
1739 | |
1740 | selpoint = disptop + y * (cols+1) + x; |
374330e2 |
1741 | |
1742 | if (b == MB_SELECT && a == MA_CLICK) { |
1743 | deselect(); |
1744 | selstate = ABOUT_TO; |
1745 | selanchor = selpoint; |
1746 | selmode = SM_CHAR; |
1747 | } else if (b == MB_SELECT && (a == MA_2CLK || a == MA_3CLK)) { |
1748 | deselect(); |
1749 | selmode = (a == MA_2CLK ? SM_WORD : SM_LINE); |
1750 | selstate = DRAGGING; |
1751 | selstart = selanchor = selpoint; |
1752 | selend = selstart + 1; |
1753 | sel_spread(); |
1754 | } else if ((b == MB_SELECT && a == MA_DRAG) || |
1755 | (b == MB_EXTEND && a != MA_RELEASE)) { |
1756 | if (selstate == ABOUT_TO && selanchor == selpoint) |
1757 | return; |
1758 | if (b == MB_EXTEND && a != MA_DRAG && selstate == SELECTED) { |
1759 | if (selpoint-selstart < (selend-selstart)/2) |
1760 | selanchor = selend - 1; |
1761 | else |
1762 | selanchor = selstart; |
1763 | selstate = DRAGGING; |
1764 | } |
1765 | if (selstate != ABOUT_TO && selstate != DRAGGING) |
1766 | selanchor = selpoint; |
1767 | selstate = DRAGGING; |
1768 | if (selpoint < selanchor) { |
1769 | selstart = selpoint; |
1770 | selend = selanchor + 1; |
1771 | } else { |
1772 | selstart = selanchor; |
1773 | selend = selpoint + 1; |
1774 | } |
1775 | sel_spread(); |
1776 | } else if ((b == MB_SELECT || b == MB_EXTEND) && a == MA_RELEASE) { |
1777 | if (selstate == DRAGGING) { |
1778 | /* |
1779 | * We've completed a selection. We now transfer the |
1780 | * data to the clipboard. |
1781 | */ |
1782 | unsigned char *p = selspace; |
1783 | unsigned long *q = selstart; |
1784 | |
1785 | while (q < selend) { |
1786 | int nl = FALSE; |
1787 | unsigned long *lineend = q - (q-text) % (cols+1) + cols; |
1788 | unsigned long *nlpos = lineend; |
1789 | |
1790 | if (!(*nlpos & ATTR_WRAPPED)) { |
1791 | while ((nlpos[-1] & CHAR_MASK) == 0x20 && nlpos > q) |
1792 | nlpos--; |
1793 | if (nlpos < selend) |
1794 | nl = TRUE; |
1795 | } |
1796 | while (q < nlpos && q < selend) |
1797 | *p++ = (unsigned char) (*q++ & CHAR_MASK); |
1798 | if (nl) { |
1799 | int i; |
1800 | for (i=0; i<sizeof(sel_nl); i++) |
1801 | *p++ = sel_nl[i]; |
1802 | } |
1803 | q = lineend + 1; /* start of next line */ |
1804 | } |
1805 | write_clip (selspace, p - selspace); |
1806 | selstate = SELECTED; |
1807 | } else |
1808 | selstate = NO_SELECTION; |
1809 | } else if (b == MB_PASTE && (a==MA_CLICK || a==MA_2CLK || a==MA_3CLK)) { |
1810 | char *data; |
1811 | int len; |
1812 | |
1813 | get_clip((void **) &data, &len); |
1814 | if (data) { |
1815 | char *p, *q; |
1816 | p = q = data; |
1817 | while (p < data+len) { |
1818 | while (p < data+len && |
1819 | !(p <= data+len-sizeof(sel_nl) && |
1820 | !memcmp(p, sel_nl, sizeof(sel_nl)))) |
1821 | p++; |
14963b8f |
1822 | |
1823 | { |
1824 | int i; |
1825 | unsigned char c; |
1826 | for(i=0;i<p-q;i++) |
1827 | { |
1828 | c=xlat_kbd2tty(q[i]); |
5bc238bb |
1829 | ldisc->send(&c,1); |
14963b8f |
1830 | } |
1831 | } |
1832 | |
374330e2 |
1833 | if (p <= data+len-sizeof(sel_nl) && |
1834 | !memcmp(p, sel_nl, sizeof(sel_nl))) { |
5bc238bb |
1835 | ldisc->send ("\r", 1); |
374330e2 |
1836 | p += sizeof(sel_nl); |
1837 | } |
1838 | q = p; |
1839 | } |
1840 | } |
1841 | get_clip(NULL, NULL); |
1842 | } |
1843 | |
1844 | term_update(); |
1845 | } |
1846 | |
1847 | static void deselect (void) { |
1848 | selstate = NO_SELECTION; |
1849 | selstart = selend = scrtop; |
1850 | } |
1851 | |
1852 | void term_deselect (void) { |
1853 | deselect(); |
1854 | term_update(); |
1855 | } |