374330e2 |
1 | #include <windows.h> |
2 | |
3 | #include <stdio.h> |
4 | #include <stdlib.h> |
5 | |
6 | #include "putty.h" |
7 | |
c9def1b8 |
8 | #define CL_ANSIMIN 0x0001 /* Codes in all ANSI like terminals. */ |
e14a5a13 |
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 */ |
c9def1b8 |
17 | #define CL_SCOANSI 0x1000 /* SCOANSI not in ANSIMIN. */ |
18 | #define CL_ANSI 0x2000 /* ANSI ECMA-48 not in the VT100..VT420 */ |
19 | #define CL_OTHER 0x4000 /* Others, Xterm, linux, putty, dunno, etc */ |
e14a5a13 |
20 | |
c9def1b8 |
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_VT220 (TM_VT102|CL_VT220) |
25 | #define TM_VTXXX (TM_VT220|CL_VT340TEXT|CL_VT510|CL_VT420|CL_VT320) |
26 | #define TM_SCOANSI (CL_ANSIMIN|CL_SCOANSI) |
27 | |
28 | #define TM_PUTTY (0xFFFF) |
e14a5a13 |
29 | |
30 | #define compatibility(x) \ |
31 | if ( ((CL_##x)&compatibility_level) == 0 ) { \ |
32 | termstate=TOPLEVEL; \ |
33 | break; \ |
34 | } |
c9def1b8 |
35 | #define compatibility2(x,y) \ |
36 | if ( ((CL_##x|CL_##y)&compatibility_level) == 0 ) { \ |
37 | termstate=TOPLEVEL; \ |
38 | break; \ |
39 | } |
e14a5a13 |
40 | |
41 | #define has_compat(x) ( ((CL_##x)&compatibility_level) != 0 ) |
42 | |
43 | static int compatibility_level = TM_PUTTY; |
44 | |
45 | |
374330e2 |
46 | static unsigned long *text; /* buffer of text on terminal screen */ |
47 | static unsigned long *scrtop; /* top of working screen */ |
48 | static unsigned long *disptop; /* top of displayed screen */ |
49 | static unsigned long *sbtop; /* top of scrollback */ |
c9def1b8 |
50 | static unsigned long *sbbot; /* furthest extent of scrollback */ |
374330e2 |
51 | static unsigned long *cpos; /* cursor position (convenience) */ |
52 | static unsigned long *disptext; /* buffer of text on real screen */ |
53 | static unsigned long *wanttext; /* buffer of text we want on screen */ |
54 | static unsigned long *alttext; /* buffer of text on alt. screen */ |
55 | |
56 | static unsigned char *selspace; /* buffer for building selections in */ |
57 | |
58 | #define TSIZE (sizeof(*text)) |
59 | #define fix_cpos do { cpos = scrtop + curs_y * (cols+1) + curs_x; } while(0) |
60 | |
61 | static unsigned long curr_attr, save_attr; |
e14a5a13 |
62 | static unsigned long erase_char = ERASE_CHAR; |
374330e2 |
63 | |
64 | static int curs_x, curs_y; /* cursor */ |
65 | static int save_x, save_y; /* saved cursor position */ |
66 | static int marg_t, marg_b; /* scroll margins */ |
67 | static int dec_om; /* DEC origin mode flag */ |
68 | static int wrap, wrapnext; /* wrap flags */ |
69 | static int insert; /* insert-mode flag */ |
70 | static int cset; /* 0 or 1: which char set */ |
71 | static int save_cset, save_csattr; /* saved with cursor position */ |
72 | static int rvideo; /* global reverse video flag */ |
e14a5a13 |
73 | static int cursor_on; /* cursor enabled flag */ |
74 | static int reset_132; /* Flag ESC c resets to 80 cols */ |
75 | static int use_bce; /* Use Background coloured erase */ |
76 | static int blinker; /* When blinking is the cursor on ? */ |
c9def1b8 |
77 | static int tblinker; /* When the blinking text is on */ |
78 | static int blink_is_real; /* Actually blink blinking text */ |
374330e2 |
79 | |
80 | static unsigned long cset_attr[2]; |
81 | |
82 | /* |
83 | * Saved settings on the alternate screen. |
84 | */ |
85 | static int alt_x, alt_y, alt_om, alt_wrap, alt_wnext, alt_ins, alt_cset; |
86 | static int alt_t, alt_b; |
87 | static int alt_which; |
88 | |
89 | #define ARGS_MAX 32 /* max # of esc sequence arguments */ |
064916ea |
90 | #define ARG_DEFAULT 0 /* if an arg isn't specified */ |
374330e2 |
91 | #define def(a,d) ( (a) == ARG_DEFAULT ? (d) : (a) ) |
92 | static int esc_args[ARGS_MAX]; |
93 | static int esc_nargs; |
94 | static int esc_query; |
8b811b12 |
95 | #define ANSI(x,y) ((x)+((y)<<8)) |
96 | #define ANSI_QUE(x) ANSI(x,TRUE) |
374330e2 |
97 | |
98 | #define OSC_STR_MAX 2048 |
99 | static int osc_strlen; |
100 | static char osc_string[OSC_STR_MAX+1]; |
101 | static int osc_w; |
102 | |
c9def1b8 |
103 | static char id_string[1024] = "\033[?6c"; |
104 | |
374330e2 |
105 | static unsigned char *tabs; |
106 | |
374330e2 |
107 | static enum { |
cabfd08c |
108 | TOPLEVEL, |
109 | SEEN_ESC, |
110 | SEEN_CSI, |
111 | SEEN_OSC, |
112 | SEEN_OSC_W, |
113 | |
114 | DO_CTRLS, |
115 | |
116 | IGNORE_NEXT, |
117 | SET_GL, SET_GR, |
118 | SEEN_OSC_P, |
119 | OSC_STRING, OSC_MAYBE_ST, |
e14a5a13 |
120 | SEEN_ESCHASH, |
121 | VT52_ESC, |
122 | VT52_Y1, |
123 | VT52_Y2 |
374330e2 |
124 | } termstate; |
125 | |
126 | static enum { |
127 | NO_SELECTION, ABOUT_TO, DRAGGING, SELECTED |
128 | } selstate; |
129 | static enum { |
130 | SM_CHAR, SM_WORD, SM_LINE |
131 | } selmode; |
132 | static unsigned long *selstart, *selend, *selanchor; |
133 | |
134 | static short wordness[256] = { |
135 | 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 */ |
136 | 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 */ |
137 | 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 */ |
138 | 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 */ |
139 | 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 */ |
140 | 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 */ |
141 | 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 */ |
142 | 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 */ |
143 | }; |
144 | |
145 | static unsigned char sel_nl[] = SEL_NL; |
c9def1b8 |
146 | static char * paste_buffer = 0; |
147 | static int paste_len, paste_pos, paste_hold; |
374330e2 |
148 | |
149 | /* |
150 | * Internal prototypes. |
151 | */ |
152 | static void do_paint (Context, int); |
153 | static void erase_lots (int, int, int); |
154 | static void swap_screen (int); |
155 | static void update_sbar (void); |
156 | static void deselect (void); |
157 | |
158 | /* |
159 | * Set up power-on settings for the terminal. |
160 | */ |
161 | static void power_on(void) { |
162 | curs_x = curs_y = alt_x = alt_y = save_x = save_y = 0; |
163 | alt_t = marg_t = 0; |
164 | if (rows != -1) |
165 | alt_b = marg_b = rows - 1; |
166 | else |
167 | alt_b = marg_b = 0; |
168 | if (cols != -1) { |
169 | int i; |
170 | for (i = 0; i < cols; i++) |
171 | tabs[i] = (i % 8 == 0 ? TRUE : FALSE); |
172 | } |
173 | alt_om = dec_om = cfg.dec_om; |
174 | alt_wnext = wrapnext = alt_ins = insert = FALSE; |
175 | alt_wrap = wrap = cfg.wrap_mode; |
176 | alt_cset = cset = 0; |
177 | cset_attr[0] = cset_attr[1] = ATTR_ASCII; |
178 | rvideo = 0; |
e14a5a13 |
179 | cursor_on = 1; |
374330e2 |
180 | save_attr = curr_attr = ATTR_DEFAULT; |
181 | app_cursor_keys = cfg.app_cursor; |
182 | app_keypad_keys = cfg.app_keypad; |
c9def1b8 |
183 | use_bce = cfg.bce; |
184 | blink_is_real = cfg.blinktext; |
e14a5a13 |
185 | erase_char = ERASE_CHAR; |
374330e2 |
186 | alt_which = 0; |
187 | { |
188 | int i; |
189 | for (i = 0; i < 256; i++) |
190 | wordness[i] = cfg.wordness[i]; |
191 | } |
192 | if (text) { |
193 | swap_screen (1); |
194 | erase_lots (FALSE, TRUE, TRUE); |
195 | swap_screen (0); |
196 | erase_lots (FALSE, TRUE, TRUE); |
197 | } |
198 | } |
199 | |
200 | /* |
201 | * Force a screen update. |
202 | */ |
203 | void term_update(void) { |
204 | Context ctx; |
205 | ctx = get_ctx(); |
206 | if (ctx) { |
c9def1b8 |
207 | if ( (seen_key_event && (cfg.scroll_on_key)) || |
a094ae43 |
208 | (seen_disp_event && (cfg.scroll_on_disp)) ) { |
cabfd08c |
209 | disptop = scrtop; |
210 | seen_disp_event = seen_key_event = 0; |
8ac3e544 |
211 | update_sbar(); |
cabfd08c |
212 | } |
374330e2 |
213 | do_paint (ctx, TRUE); |
ec8679e9 |
214 | sys_cursor(curs_x, curs_y + (scrtop - disptop) / (cols+1)); |
374330e2 |
215 | free_ctx (ctx); |
374330e2 |
216 | } |
217 | } |
218 | |
219 | /* |
220 | * Same as power_on(), but an external function. |
221 | */ |
222 | void term_pwron(void) { |
223 | power_on(); |
224 | fix_cpos; |
225 | disptop = scrtop; |
226 | deselect(); |
227 | term_update(); |
228 | } |
229 | |
230 | /* |
231 | * Clear the scrollback. |
232 | */ |
233 | void term_clrsb(void) { |
234 | disptop = sbtop = scrtop; |
235 | update_sbar(); |
236 | } |
237 | |
238 | /* |
239 | * Initialise the terminal. |
240 | */ |
241 | void term_init(void) { |
c9def1b8 |
242 | text = sbtop = sbbot = scrtop = disptop = cpos = NULL; |
374330e2 |
243 | disptext = wanttext = NULL; |
244 | tabs = NULL; |
245 | selspace = NULL; |
246 | deselect(); |
247 | rows = cols = -1; |
374330e2 |
248 | power_on(); |
249 | } |
250 | |
251 | /* |
252 | * Set up the terminal for a given size. |
253 | */ |
254 | void term_size(int newrows, int newcols, int newsavelines) { |
255 | unsigned long *newtext, *newdisp, *newwant, *newalt; |
256 | int i, j, crows, ccols; |
257 | |
d6832394 |
258 | int save_alt_which = alt_which; |
259 | |
374330e2 |
260 | if (newrows == rows && newcols == cols && newsavelines == savelines) |
261 | return; /* nothing to do */ |
262 | |
d6832394 |
263 | deselect(); |
264 | swap_screen(0); |
265 | |
374330e2 |
266 | alt_t = marg_t = 0; |
267 | alt_b = marg_b = newrows - 1; |
268 | |
269 | newtext = smalloc ((newrows+newsavelines)*(newcols+1)*TSIZE); |
c9def1b8 |
270 | sbbot = newtext + newsavelines*(newcols+1); |
374330e2 |
271 | for (i=0; i<(newrows+newsavelines)*(newcols+1); i++) |
c9def1b8 |
272 | newtext[i] = erase_char; |
374330e2 |
273 | if (rows != -1) { |
274 | crows = rows + (scrtop - sbtop) / (cols+1); |
275 | if (crows > newrows+newsavelines) |
276 | crows = newrows+newsavelines; |
c9def1b8 |
277 | if (newrows>crows) |
278 | disptop = newtext; |
279 | else |
280 | disptop = newtext + (crows-newrows)*(newcols+1); |
374330e2 |
281 | ccols = (cols < newcols ? cols : newcols); |
282 | for (i=0; i<crows; i++) { |
c9def1b8 |
283 | int oldidx = (rows - crows + i) * (cols+1); |
284 | int newidx = (newrows - crows + i) * (newcols+1); |
285 | |
374330e2 |
286 | for (j=0; j<ccols; j++) |
c9def1b8 |
287 | disptop[newidx+j] = scrtop[oldidx+j]; |
288 | disptop[newidx+newcols] = |
289 | (cols == newcols ? scrtop[oldidx+cols] |
290 | : (scrtop[oldidx+cols]&LATTR_MODE)); |
374330e2 |
291 | } |
c9def1b8 |
292 | sbtop = newtext; |
293 | } else { |
294 | sbtop = disptop = newtext; |
295 | } |
374330e2 |
296 | scrtop = disptop; |
297 | sfree (text); |
298 | text = newtext; |
299 | |
300 | newdisp = smalloc (newrows*(newcols+1)*TSIZE); |
301 | for (i=0; i<newrows*(newcols+1); i++) |
302 | newdisp[i] = ATTR_INVALID; |
303 | sfree (disptext); |
304 | disptext = newdisp; |
305 | |
306 | newwant = smalloc (newrows*(newcols+1)*TSIZE); |
307 | for (i=0; i<newrows*(newcols+1); i++) |
308 | newwant[i] = ATTR_INVALID; |
309 | sfree (wanttext); |
310 | wanttext = newwant; |
311 | |
312 | newalt = smalloc (newrows*(newcols+1)*TSIZE); |
313 | for (i=0; i<newrows*(newcols+1); i++) |
e14a5a13 |
314 | newalt[i] = erase_char; |
374330e2 |
315 | sfree (alttext); |
316 | alttext = newalt; |
317 | |
318 | sfree (selspace); |
319 | selspace = smalloc ( (newrows+newsavelines) * (newcols+sizeof(sel_nl)) ); |
320 | |
321 | tabs = srealloc (tabs, newcols*sizeof(*tabs)); |
322 | { |
323 | int i; |
324 | for (i = (cols > 0 ? cols : 0); i < newcols; i++) |
325 | tabs[i] = (i % 8 == 0 ? TRUE : FALSE); |
326 | } |
327 | |
328 | if (rows > 0) |
329 | curs_y += newrows - rows; |
330 | if (curs_y < 0) |
331 | curs_y = 0; |
332 | if (curs_y >= newrows) |
333 | curs_y = newrows-1; |
334 | if (curs_x >= newcols) |
335 | curs_x = newcols-1; |
336 | alt_x = alt_y = 0; |
337 | wrapnext = alt_wnext = FALSE; |
338 | |
339 | rows = newrows; |
340 | cols = newcols; |
341 | savelines = newsavelines; |
342 | fix_cpos; |
343 | |
d6832394 |
344 | swap_screen(save_alt_which); |
345 | |
374330e2 |
346 | update_sbar(); |
347 | term_update(); |
348 | } |
349 | |
350 | /* |
351 | * Swap screens. |
352 | */ |
353 | static void swap_screen (int which) { |
354 | int t; |
355 | unsigned long tt; |
356 | |
357 | if (which == alt_which) |
358 | return; |
359 | |
360 | alt_which = which; |
361 | |
362 | for (t=0; t<rows*(cols+1); t++) { |
363 | tt = scrtop[t]; scrtop[t] = alttext[t]; alttext[t] = tt; |
364 | } |
365 | |
366 | t = curs_x; curs_x = alt_x; alt_x = t; |
367 | t = curs_y; curs_y = alt_y; alt_y = t; |
368 | t = marg_t; marg_t = alt_t; alt_t = t; |
369 | t = marg_b; marg_b = alt_b; alt_b = t; |
370 | t = dec_om; dec_om = alt_om; alt_om = t; |
371 | t = wrap; wrap = alt_wrap; alt_wrap = t; |
372 | t = wrapnext; wrapnext = alt_wnext; alt_wnext = t; |
373 | t = insert; insert = alt_ins; alt_ins = t; |
374 | t = cset; cset = alt_cset; alt_cset = t; |
375 | |
376 | fix_cpos; |
377 | } |
378 | |
379 | /* |
374330e2 |
380 | * Update the scroll bar. |
381 | */ |
382 | static void update_sbar(void) { |
383 | int min; |
384 | |
385 | min = (sbtop - text) / (cols+1); |
386 | set_sbar ((scrtop - text) / (cols+1) + rows - min, |
387 | (disptop - text) / (cols+1) - min, |
388 | rows); |
389 | } |
390 | |
391 | /* |
392 | * Check whether the region bounded by the two pointers intersects |
393 | * the scroll region, and de-select the on-screen selection if so. |
394 | */ |
395 | static void check_selection (unsigned long *from, unsigned long *to) { |
396 | if (from < selend && selstart < to) |
397 | deselect(); |
398 | } |
399 | |
400 | /* |
401 | * Scroll the screen. (`lines' is +ve for scrolling forward, -ve |
402 | * for backward.) `sb' is TRUE if the scrolling is permitted to |
403 | * affect the scrollback buffer. |
404 | */ |
405 | static void scroll (int topline, int botline, int lines, int sb) { |
406 | unsigned long *scroll_top; |
c9def1b8 |
407 | unsigned long *newscr; |
374330e2 |
408 | int scroll_size, size, i; |
c9def1b8 |
409 | int scrtop_is_disptop = (scrtop==disptop); |
410 | static int recursive = 0; |
411 | |
412 | /* Only scroll more than the window if we're doing a 10% scroll */ |
413 | if (!recursive && lines > botline - topline + 1) |
414 | lines = botline - topline + 1; |
374330e2 |
415 | |
416 | scroll_top = scrtop + topline*(cols+1); |
417 | size = (lines < 0 ? -lines : lines) * (cols+1); |
418 | scroll_size = (botline - topline + 1) * (cols+1) - size; |
419 | |
cabfd08c |
420 | if (lines > 0 && topline == 0 && alt_which == 0 && sb) { |
374330e2 |
421 | /* |
cabfd08c |
422 | * Since we're going to scroll the top line and we're on the |
c9def1b8 |
423 | * scrolling screen let's also effect the scrollback buffer. |
424 | * |
425 | * This is normally done by moving the position the screen |
426 | * painter reads from to reduce the amount of memory copying |
427 | * required. |
374330e2 |
428 | */ |
c9def1b8 |
429 | if (scroll_size >= 0 && !recursive) { |
430 | newscr = scrtop + lines * (cols+1); |
431 | |
432 | if (newscr > sbbot && botline == rows-1) { |
433 | /* We've hit the bottom of memory, so we have to do a |
434 | * physical scroll. But instead of just 1 line do it |
435 | * by 10% of the available memory. |
436 | * |
437 | * If the scroll region isn't the whole screen then we can't |
438 | * do this as it stands. We would need to recover the bottom |
439 | * of the screen from the scroll buffer after being sure that |
440 | * it doesn't get deleted. |
441 | */ |
442 | |
443 | i = (rows+savelines)/10; |
444 | |
445 | /* Make it simple and ensure safe recursion */ |
446 | if ( i<savelines-1) { |
447 | recursive ++; |
448 | scroll(topline, botline, i, sb); |
449 | recursive --; |
450 | |
451 | newscr = scrtop - i * (cols+1); |
452 | if (scrtop_is_disptop) disptop = newscr; |
453 | scrtop = newscr; |
454 | } |
455 | |
456 | newscr = scrtop + lines * (cols+1); |
457 | } |
458 | |
459 | if (newscr <= sbbot) { |
460 | if (scrtop_is_disptop) disptop = newscr; |
461 | scrtop = newscr; |
462 | |
463 | if (botline == rows-1 ) |
464 | for (i = 0; i < size; i++) |
465 | scrtop[i+scroll_size] = erase_char; |
466 | |
467 | update_sbar(); |
468 | fix_cpos; |
469 | |
470 | if (botline != rows-1) { |
471 | /* This fastscroll only works for full window scrolls. |
472 | * If the caller wanted a partial one we have to reverse |
473 | * scroll the bottom of the screen. |
474 | */ |
475 | scroll(botline-lines+1, rows-1, -lines, 0); |
476 | } |
477 | return ; |
478 | } |
479 | |
480 | /* If we can't scroll by memory remapping do it physically. |
481 | * But rather than expensivly doing the scroll buffer just |
482 | * scroll the screen. All it means is that sometimes we choose |
483 | * to not add lines from a scroll region to the scroll buffer. |
484 | */ |
485 | |
486 | if (savelines <= 400) { |
487 | sbtop -= lines * (cols+1); |
488 | if (sbtop < text) |
489 | sbtop = text; |
490 | scroll_size += scroll_top - sbtop; |
491 | scroll_top = sbtop; |
492 | |
493 | update_sbar(); |
494 | } |
495 | } else { |
496 | /* Ho hum, expensive scroll required. */ |
497 | |
498 | sbtop -= lines * (cols+1); |
499 | if (sbtop < text) |
500 | sbtop = text; |
501 | scroll_size += scroll_top - sbtop; |
502 | scroll_top = sbtop; |
503 | |
504 | update_sbar(); |
505 | } |
374330e2 |
506 | } |
507 | |
508 | if (scroll_size < 0) { |
509 | size += scroll_size; |
510 | scroll_size = 0; |
511 | } |
512 | |
513 | if (lines > 0) { |
514 | if (scroll_size) |
515 | memmove (scroll_top, scroll_top + size, scroll_size*TSIZE); |
516 | for (i = 0; i < size; i++) |
e14a5a13 |
517 | scroll_top[i+scroll_size] = erase_char; |
374330e2 |
518 | if (selstart > scroll_top && |
519 | selstart < scroll_top + size + scroll_size) { |
520 | selstart -= size; |
521 | if (selstart < scroll_top) |
522 | selstart = scroll_top; |
523 | } |
524 | if (selend > scroll_top && |
525 | selend < scroll_top + size + scroll_size) { |
526 | selend -= size; |
527 | if (selend < scroll_top) |
528 | selend = scroll_top; |
529 | } |
c9def1b8 |
530 | if (scrtop_is_disptop) |
531 | disptop = scrtop; |
532 | else |
533 | if (disptop > scroll_top && |
534 | disptop < scroll_top + size + scroll_size) { |
535 | disptop -= size; |
536 | if (disptop < scroll_top) |
537 | disptop = scroll_top; |
538 | } |
374330e2 |
539 | } else { |
540 | if (scroll_size) |
541 | memmove (scroll_top + size, scroll_top, scroll_size*TSIZE); |
542 | for (i = 0; i < size; i++) |
e14a5a13 |
543 | scroll_top[i] = erase_char; |
374330e2 |
544 | if (selstart > scroll_top && |
545 | selstart < scroll_top + size + scroll_size) { |
546 | selstart += size; |
547 | if (selstart > scroll_top + size + scroll_size) |
548 | selstart = scroll_top + size + scroll_size; |
549 | } |
550 | if (selend > scroll_top && |
551 | selend < scroll_top + size + scroll_size) { |
552 | selend += size; |
553 | if (selend > scroll_top + size + scroll_size) |
554 | selend = scroll_top + size + scroll_size; |
555 | } |
c9def1b8 |
556 | if (scrtop_is_disptop) |
557 | disptop = scrtop; |
558 | else if (disptop > scroll_top && |
559 | disptop < scroll_top + size + scroll_size) { |
560 | disptop += size; |
561 | if (disptop > scroll_top + size + scroll_size) |
562 | disptop = scroll_top + size + scroll_size; |
563 | } |
374330e2 |
564 | } |
374330e2 |
565 | } |
566 | |
567 | /* |
568 | * Move the cursor to a given position, clipping at boundaries. We |
569 | * may or may not want to clip at the scroll margin: marg_clip is 0 |
570 | * not to, 1 to disallow _passing_ the margins, and 2 to disallow |
571 | * even _being_ outside the margins. |
572 | */ |
573 | static void move (int x, int y, int marg_clip) { |
574 | if (x < 0) |
575 | x = 0; |
576 | if (x >= cols) |
577 | x = cols-1; |
578 | if (marg_clip) { |
579 | if ((curs_y >= marg_t || marg_clip == 2) && y < marg_t) |
580 | y = marg_t; |
581 | if ((curs_y <= marg_b || marg_clip == 2) && y > marg_b) |
582 | y = marg_b; |
583 | } |
584 | if (y < 0) |
585 | y = 0; |
586 | if (y >= rows) |
587 | y = rows-1; |
588 | curs_x = x; |
589 | curs_y = y; |
590 | fix_cpos; |
591 | wrapnext = FALSE; |
592 | } |
593 | |
594 | /* |
595 | * Save or restore the cursor and SGR mode. |
596 | */ |
597 | static void save_cursor(int save) { |
598 | if (save) { |
599 | save_x = curs_x; |
600 | save_y = curs_y; |
601 | save_attr = curr_attr; |
602 | save_cset = cset; |
603 | save_csattr = cset_attr[cset]; |
604 | } else { |
605 | curs_x = save_x; |
606 | curs_y = save_y; |
c9def1b8 |
607 | /* Make sure the window hasn't shrunk since the save */ |
608 | if (curs_x >= cols) curs_x = cols-1; |
609 | if (curs_y >= rows) curs_y = rows-1; |
610 | |
374330e2 |
611 | curr_attr = save_attr; |
612 | cset = save_cset; |
613 | cset_attr[cset] = save_csattr; |
614 | fix_cpos; |
e14a5a13 |
615 | if (use_bce) erase_char = (' ' |(curr_attr&(ATTR_FGMASK|ATTR_BGMASK))); |
374330e2 |
616 | } |
617 | } |
618 | |
619 | /* |
620 | * Erase a large portion of the screen: the whole screen, or the |
621 | * whole line, or parts thereof. |
622 | */ |
623 | static void erase_lots (int line_only, int from_begin, int to_end) { |
624 | unsigned long *startpos, *endpos; |
625 | |
626 | if (line_only) { |
627 | startpos = cpos - curs_x; |
c9def1b8 |
628 | endpos = startpos + cols; |
629 | /* I've removed the +1 so that the Wide screen stuff is not |
630 | * removed when it shouldn't be. |
631 | */ |
374330e2 |
632 | } else { |
633 | startpos = scrtop; |
634 | endpos = startpos + rows * (cols+1); |
635 | } |
636 | if (!from_begin) |
637 | startpos = cpos; |
638 | if (!to_end) |
e14a5a13 |
639 | endpos = cpos+1; |
374330e2 |
640 | check_selection (startpos, endpos); |
e14a5a13 |
641 | |
642 | /* Clear screen also forces a full window redraw, just in case. */ |
643 | if (startpos == scrtop && endpos == scrtop + rows * (cols+1)) |
644 | term_invalidate(); |
645 | |
374330e2 |
646 | while (startpos < endpos) |
e14a5a13 |
647 | *startpos++ = erase_char; |
374330e2 |
648 | } |
649 | |
650 | /* |
651 | * Insert or delete characters within the current line. n is +ve if |
652 | * insertion is desired, and -ve for deletion. |
653 | */ |
654 | static void insch (int n) { |
655 | int dir = (n < 0 ? -1 : +1); |
656 | int m; |
657 | |
658 | n = (n < 0 ? -n : n); |
659 | if (n > cols - curs_x) |
660 | n = cols - curs_x; |
661 | m = cols - curs_x - n; |
662 | check_selection (cpos, cpos+n); |
663 | if (dir < 0) { |
664 | memmove (cpos, cpos+n, m*TSIZE); |
665 | while (n--) |
e14a5a13 |
666 | cpos[m++] = erase_char; |
374330e2 |
667 | } else { |
668 | memmove (cpos+n, cpos, m*TSIZE); |
669 | while (n--) |
e14a5a13 |
670 | cpos[n] = erase_char; |
374330e2 |
671 | } |
672 | } |
673 | |
674 | /* |
675 | * Toggle terminal mode `mode' to state `state'. (`query' indicates |
676 | * whether the mode is a DEC private one or a normal one.) |
677 | */ |
678 | static void toggle_mode (int mode, int query, int state) { |
679 | if (query) switch (mode) { |
680 | case 1: /* application cursor keys */ |
681 | app_cursor_keys = state; |
682 | break; |
e14a5a13 |
683 | case 2: /* VT52 mode */ |
684 | vt52_mode = !state; |
685 | break; |
374330e2 |
686 | case 3: /* 80/132 columns */ |
687 | deselect(); |
e14a5a13 |
688 | request_resize (state ? 132 : 80, rows, 1); |
689 | reset_132 = state; |
374330e2 |
690 | break; |
691 | case 5: /* reverse video */ |
692 | rvideo = state; |
cabfd08c |
693 | seen_disp_event = TRUE; |
e14a5a13 |
694 | if (state) term_update(); |
374330e2 |
695 | break; |
696 | case 6: /* DEC origin mode */ |
697 | dec_om = state; |
698 | break; |
699 | case 7: /* auto wrap */ |
700 | wrap = state; |
701 | break; |
c9def1b8 |
702 | case 8: /* auto key repeat */ |
703 | repeat_off = !state; |
704 | break; |
e14a5a13 |
705 | case 25: /* enable/disable cursor */ |
ec55b220 |
706 | compatibility2(OTHER,VT220); |
e14a5a13 |
707 | cursor_on = state; |
708 | seen_disp_event = TRUE; |
709 | break; |
374330e2 |
710 | case 47: /* alternate screen */ |
e14a5a13 |
711 | compatibility(OTHER); |
374330e2 |
712 | deselect(); |
713 | swap_screen (state); |
714 | disptop = scrtop; |
715 | break; |
716 | } else switch (mode) { |
717 | case 4: /* set insert mode */ |
e14a5a13 |
718 | compatibility(VT102); |
374330e2 |
719 | insert = state; |
720 | break; |
e14a5a13 |
721 | case 12: /* set echo mode */ |
722 | /* |
723 | * This may be very good in smcup and rmcup (or smkx & rmkx) if you |
724 | * have a long RTT and the telnet client/daemon doesn't understand |
725 | * linemode. |
726 | * |
727 | * DONT send TS_RECHO/TS_LECHO; the telnet daemon tries to fix the |
728 | * tty and _really_ confuses some programs. |
729 | */ |
ec55b220 |
730 | compatibility2(OTHER,VT220); |
e14a5a13 |
731 | ldisc = (state? &ldisc_simple : &ldisc_term); |
732 | break; |
c9def1b8 |
733 | case 20: /* Return sends ... */ |
734 | cr_lf_return = state; |
735 | break; |
374330e2 |
736 | } |
737 | } |
738 | |
739 | /* |
740 | * Process an OSC sequence: set window title or icon name. |
741 | */ |
742 | static void do_osc(void) { |
743 | if (osc_w) { |
744 | while (osc_strlen--) |
745 | wordness[(unsigned char)osc_string[osc_strlen]] = esc_args[0]; |
746 | } else { |
747 | osc_string[osc_strlen] = '\0'; |
748 | switch (esc_args[0]) { |
749 | case 0: |
750 | case 1: |
751 | set_icon (osc_string); |
752 | if (esc_args[0] == 1) |
753 | break; |
754 | /* fall through: parameter 0 means set both */ |
755 | case 2: |
756 | case 21: |
757 | set_title (osc_string); |
758 | break; |
759 | } |
760 | } |
761 | } |
762 | |
763 | /* |
764 | * Remove everything currently in `inbuf' and stick it up on the |
765 | * in-memory display. There's a big state machine in here to |
766 | * process escape sequences... |
767 | */ |
768 | void term_out(void) { |
c9def1b8 |
769 | int c, inbuf_reap; |
770 | |
771 | static int beep_overload = 0; |
772 | int beep_count = 0; |
773 | |
774 | for(inbuf_reap = 0; inbuf_reap < inbuf_head; inbuf_reap++) |
775 | { |
776 | c = inbuf[inbuf_reap]; |
374330e2 |
777 | |
c9def1b8 |
778 | /* |
5fd04f07 |
779 | * Optionally log the session traffic to a file. Useful for |
780 | * debugging and possibly also useful for actual logging. |
781 | */ |
782 | if (logfile) { |
374330e2 |
783 | static FILE *fp = NULL; |
5fd04f07 |
784 | if (!fp) fp = fopen(logfile, "wb"); |
374330e2 |
785 | if (fp) fputc (c, fp); |
786 | } |
e14a5a13 |
787 | /* Note only VT220+ are 8-bit VT102 is seven bit, it shouldn't even |
788 | * be able to display 8-bit characters, but I'll let that go 'cause |
789 | * of i18n. |
790 | */ |
c9def1b8 |
791 | if( ( (c&0x60) == 0 || c == '\177') && |
792 | termstate < DO_CTRLS && |
e14a5a13 |
793 | ( (c&0x80) == 0 || has_compat(VT220))) { |
374330e2 |
794 | switch (c) { |
795 | case '\005': /* terminal type query */ |
e14a5a13 |
796 | /* Strictly speaking this is VT100 but a VT100 defaults to |
797 | * no response. Other terminals respond at their option. |
798 | * |
799 | * Don't put a CR in the default string as this tends to |
800 | * upset some weird software. |
801 | * |
802 | * An xterm returns "xterm" (5 characters) |
803 | */ |
804 | compatibility(OTHER); |
805 | ldisc->send ("PuTTY", 5); |
374330e2 |
806 | break; |
807 | case '\007': |
c9def1b8 |
808 | beep_count++; |
809 | if(beep_count>6) beep_overload=1; |
374330e2 |
810 | disptop = scrtop; |
374330e2 |
811 | break; |
812 | case '\b': |
c9def1b8 |
813 | if (curs_x == 0 && curs_y == 0) |
814 | ; |
815 | else if (curs_x == 0 && curs_y > 0) |
374330e2 |
816 | curs_x = cols-1, curs_y--; |
817 | else if (wrapnext) |
818 | wrapnext = FALSE; |
819 | else |
820 | curs_x--; |
821 | fix_cpos; |
cabfd08c |
822 | seen_disp_event = TRUE; |
374330e2 |
823 | break; |
824 | case '\016': |
e14a5a13 |
825 | compatibility(VT100); |
374330e2 |
826 | cset = 1; |
827 | break; |
828 | case '\017': |
e14a5a13 |
829 | compatibility(VT100); |
374330e2 |
830 | cset = 0; |
831 | break; |
832 | case '\033': |
e14a5a13 |
833 | if (vt52_mode) |
834 | termstate = VT52_ESC; |
835 | else { |
836 | compatibility(ANSIMIN); |
837 | termstate = SEEN_ESC; |
838 | } |
374330e2 |
839 | break; |
840 | case 0233: |
e14a5a13 |
841 | compatibility(VT220); |
374330e2 |
842 | termstate = SEEN_CSI; |
843 | esc_nargs = 1; |
844 | esc_args[0] = ARG_DEFAULT; |
845 | esc_query = FALSE; |
846 | break; |
847 | case 0235: |
e14a5a13 |
848 | compatibility(VT220); |
374330e2 |
849 | termstate = SEEN_OSC; |
850 | esc_args[0] = 0; |
851 | break; |
852 | case '\r': |
853 | curs_x = 0; |
854 | wrapnext = FALSE; |
855 | fix_cpos; |
cabfd08c |
856 | seen_disp_event = TRUE; |
c9def1b8 |
857 | paste_hold = 0; |
374330e2 |
858 | break; |
859 | case '\013': |
860 | case '\014': |
e14a5a13 |
861 | compatibility(VT100); |
374330e2 |
862 | case '\n': |
863 | if (curs_y == marg_b) |
864 | scroll (marg_t, marg_b, 1, TRUE); |
865 | else if (curs_y < rows-1) |
866 | curs_y++; |
cabfd08c |
867 | if (cfg.lfhascr) |
868 | curs_x = 0; |
374330e2 |
869 | fix_cpos; |
870 | wrapnext = FALSE; |
cabfd08c |
871 | seen_disp_event = 1; |
c9def1b8 |
872 | paste_hold = 0; |
374330e2 |
873 | break; |
874 | case '\t': |
374330e2 |
875 | { |
876 | unsigned long *old_cpos = cpos; |
c9def1b8 |
877 | unsigned long *p = scrtop + curs_y * (cols+1) + cols; |
878 | |
879 | do { |
880 | curs_x++; |
881 | } while (curs_x < cols-1 && !tabs[curs_x]); |
882 | |
883 | if ((*p & LATTR_MODE) != LATTR_NORM) |
884 | { |
885 | if (curs_x >= cols/2) |
886 | curs_x = cols/2-1; |
887 | } |
888 | else |
889 | { |
890 | if (curs_x >= cols) |
891 | curs_x = cols-1; |
892 | } |
893 | |
374330e2 |
894 | fix_cpos; |
895 | check_selection (old_cpos, cpos); |
896 | } |
cabfd08c |
897 | seen_disp_event = TRUE; |
374330e2 |
898 | break; |
ec55b220 |
899 | case '\177': /* Destructive backspace |
900 | This does nothing on a real VT100 */ |
901 | compatibility(OTHER); |
902 | if (curs_x && !wrapnext) curs_x--; |
903 | wrapnext = FALSE; |
904 | fix_cpos; |
905 | *cpos = (' ' | curr_attr | ATTR_ASCII); |
906 | break; |
cabfd08c |
907 | } |
908 | } |
909 | else switch (termstate) { |
910 | case TOPLEVEL: |
8b811b12 |
911 | /* Only graphic characters get this far, ctrls are stripped above */ |
912 | if (wrapnext) { |
c9def1b8 |
913 | cpos[1] |= ATTR_WRAPPED; |
8b811b12 |
914 | if (curs_y == marg_b) |
915 | scroll (marg_t, marg_b, 1, TRUE); |
916 | else if (curs_y < rows-1) |
917 | curs_y++; |
918 | curs_x = 0; |
919 | fix_cpos; |
920 | wrapnext = FALSE; |
8b811b12 |
921 | } |
922 | if (insert) |
923 | insch (1); |
e14a5a13 |
924 | if (selstate != NO_SELECTION) |
925 | check_selection (cpos, cpos+1); |
926 | switch (cset_attr[cset]) { |
927 | /* Linedraw characters are different from 'ESC ( B' only |
928 | * for a small range, for ones outside that range make sure |
929 | * we use the same font as well as the same encoding. |
930 | */ |
931 | case ATTR_LINEDRW: |
ec55b220 |
932 | if (c<0x5f || c>0x7F) |
e14a5a13 |
933 | *cpos++ = xlat_tty2scr((unsigned char)c) | curr_attr | |
934 | ATTR_ASCII; |
ec55b220 |
935 | else if (c==0x5F) |
936 | *cpos++ = ' ' | curr_attr | ATTR_ASCII; |
e14a5a13 |
937 | else |
938 | *cpos++ = ((unsigned char)c) | curr_attr | ATTR_LINEDRW; |
939 | break; |
ec55b220 |
940 | case ATTR_GBCHR: |
941 | /* If UK-ASCII, make the '#' a LineDraw Pound */ |
942 | if (c == '#') { |
943 | *cpos++ = '}' | curr_attr | ATTR_LINEDRW; |
944 | break; |
945 | } |
946 | /*FALLTHROUGH*/ |
e14a5a13 |
947 | default: |
948 | *cpos++ = xlat_tty2scr((unsigned char)c) | curr_attr | |
949 | (c <= 0x7F ? cset_attr[cset] : ATTR_ASCII); |
950 | break; |
951 | } |
8b811b12 |
952 | curs_x++; |
953 | if (curs_x == cols) { |
954 | cpos--; |
955 | curs_x--; |
956 | wrapnext = wrap; |
374330e2 |
957 | } |
8b811b12 |
958 | seen_disp_event = 1; |
374330e2 |
959 | break; |
cabfd08c |
960 | |
374330e2 |
961 | case IGNORE_NEXT: |
962 | termstate = TOPLEVEL; |
963 | break; |
964 | case OSC_MAYBE_ST: |
965 | /* |
966 | * This state is virtually identical to SEEN_ESC, with the |
967 | * exception that we have an OSC sequence in the pipeline, |
968 | * and _if_ we see a backslash, we process it. |
969 | */ |
970 | if (c == '\\') { |
971 | do_osc(); |
972 | termstate = TOPLEVEL; |
973 | break; |
974 | } |
975 | /* else fall through */ |
976 | case SEEN_ESC: |
977 | termstate = TOPLEVEL; |
978 | switch (c) { |
374330e2 |
979 | case ' ': /* some weird sequence? */ |
e14a5a13 |
980 | compatibility(VT220); |
374330e2 |
981 | termstate = IGNORE_NEXT; |
982 | break; |
983 | case '[': /* enter CSI mode */ |
984 | termstate = SEEN_CSI; |
985 | esc_nargs = 1; |
986 | esc_args[0] = ARG_DEFAULT; |
987 | esc_query = FALSE; |
988 | break; |
989 | case ']': /* xterm escape sequences */ |
e14a5a13 |
990 | /* Compatibility is nasty here, xterm, linux, decterm yuk! */ |
991 | compatibility(OTHER); |
374330e2 |
992 | termstate = SEEN_OSC; |
993 | esc_args[0] = 0; |
994 | break; |
995 | case '(': /* should set GL */ |
e14a5a13 |
996 | compatibility(VT100); |
374330e2 |
997 | termstate = SET_GL; |
998 | break; |
999 | case ')': /* should set GR */ |
e14a5a13 |
1000 | compatibility(VT100); |
374330e2 |
1001 | termstate = SET_GR; |
1002 | break; |
1003 | case '7': /* save cursor */ |
e14a5a13 |
1004 | compatibility(VT100); |
374330e2 |
1005 | save_cursor (TRUE); |
1006 | break; |
1007 | case '8': /* restore cursor */ |
e14a5a13 |
1008 | compatibility(VT100); |
374330e2 |
1009 | save_cursor (FALSE); |
cabfd08c |
1010 | seen_disp_event = TRUE; |
374330e2 |
1011 | break; |
1012 | case '=': |
e14a5a13 |
1013 | compatibility(VT100); |
374330e2 |
1014 | app_keypad_keys = TRUE; |
1015 | break; |
1016 | case '>': |
e14a5a13 |
1017 | compatibility(VT100); |
374330e2 |
1018 | app_keypad_keys = FALSE; |
1019 | break; |
1020 | case 'D': /* exactly equivalent to LF */ |
e14a5a13 |
1021 | compatibility(VT100); |
374330e2 |
1022 | if (curs_y == marg_b) |
1023 | scroll (marg_t, marg_b, 1, TRUE); |
1024 | else if (curs_y < rows-1) |
1025 | curs_y++; |
1026 | fix_cpos; |
1027 | wrapnext = FALSE; |
cabfd08c |
1028 | seen_disp_event = TRUE; |
374330e2 |
1029 | break; |
1030 | case 'E': /* exactly equivalent to CR-LF */ |
e14a5a13 |
1031 | compatibility(VT100); |
374330e2 |
1032 | curs_x = 0; |
374330e2 |
1033 | if (curs_y == marg_b) |
1034 | scroll (marg_t, marg_b, 1, TRUE); |
1035 | else if (curs_y < rows-1) |
1036 | curs_y++; |
1037 | fix_cpos; |
1038 | wrapnext = FALSE; |
cabfd08c |
1039 | seen_disp_event = TRUE; |
374330e2 |
1040 | break; |
1041 | case 'M': /* reverse index - backwards LF */ |
e14a5a13 |
1042 | compatibility(VT100); |
374330e2 |
1043 | if (curs_y == marg_t) |
1044 | scroll (marg_t, marg_b, -1, TRUE); |
1045 | else if (curs_y > 0) |
1046 | curs_y--; |
1047 | fix_cpos; |
1048 | wrapnext = FALSE; |
cabfd08c |
1049 | seen_disp_event = TRUE; |
374330e2 |
1050 | break; |
1051 | case 'Z': /* terminal type query */ |
e14a5a13 |
1052 | compatibility(VT100); |
c9def1b8 |
1053 | ldisc->send (id_string, strlen(id_string)); |
374330e2 |
1054 | break; |
1055 | case 'c': /* restore power-on settings */ |
e14a5a13 |
1056 | compatibility(VT100); |
374330e2 |
1057 | power_on(); |
e14a5a13 |
1058 | if (reset_132) { |
1059 | request_resize (80, rows, 1); |
1060 | reset_132 = 0; |
1061 | } |
374330e2 |
1062 | fix_cpos; |
1063 | disptop = scrtop; |
cabfd08c |
1064 | seen_disp_event = TRUE; |
374330e2 |
1065 | break; |
1066 | case '#': /* ESC # 8 fills screen with Es :-) */ |
e14a5a13 |
1067 | compatibility(VT100); |
374330e2 |
1068 | termstate = SEEN_ESCHASH; |
1069 | break; |
1070 | case 'H': /* set a tab */ |
e14a5a13 |
1071 | compatibility(VT100); |
374330e2 |
1072 | tabs[curs_x] = TRUE; |
1073 | break; |
1074 | } |
1075 | break; |
1076 | case SEEN_CSI: |
1077 | termstate = TOPLEVEL; /* default */ |
8b811b12 |
1078 | if( isdigit(c) ) |
1079 | { |
374330e2 |
1080 | if (esc_nargs <= ARGS_MAX) { |
1081 | if (esc_args[esc_nargs-1] == ARG_DEFAULT) |
1082 | esc_args[esc_nargs-1] = 0; |
1083 | esc_args[esc_nargs-1] = |
1084 | 10 * esc_args[esc_nargs-1] + c - '0'; |
1085 | } |
1086 | termstate = SEEN_CSI; |
8b811b12 |
1087 | } |
1088 | else if( c == ';' ) |
1089 | { |
374330e2 |
1090 | if (++esc_nargs <= ARGS_MAX) |
1091 | esc_args[esc_nargs-1] = ARG_DEFAULT; |
1092 | termstate = SEEN_CSI; |
8b811b12 |
1093 | } |
1094 | else if( c < '@' ) |
1095 | { |
1096 | if( esc_query ) esc_query = -1; |
1097 | else if( c == '?' ) esc_query = TRUE; |
1098 | else esc_query = c; |
374330e2 |
1099 | termstate = SEEN_CSI; |
8b811b12 |
1100 | } |
1101 | else switch (ANSI(c,esc_query)) { |
374330e2 |
1102 | case 'A': /* move up N lines */ |
1103 | move (curs_x, curs_y - def(esc_args[0], 1), 1); |
cabfd08c |
1104 | seen_disp_event = TRUE; |
374330e2 |
1105 | break; |
e14a5a13 |
1106 | case 'e': /* move down N lines */ |
1107 | compatibility(ANSI); |
1108 | case 'B': |
374330e2 |
1109 | move (curs_x, curs_y + def(esc_args[0], 1), 1); |
cabfd08c |
1110 | seen_disp_event = TRUE; |
374330e2 |
1111 | break; |
e14a5a13 |
1112 | case 'a': /* move right N cols */ |
1113 | compatibility(ANSI); |
1114 | case 'C': |
374330e2 |
1115 | move (curs_x + def(esc_args[0], 1), curs_y, 1); |
cabfd08c |
1116 | seen_disp_event = TRUE; |
374330e2 |
1117 | break; |
1118 | case 'D': /* move left N cols */ |
1119 | move (curs_x - def(esc_args[0], 1), curs_y, 1); |
cabfd08c |
1120 | seen_disp_event = TRUE; |
374330e2 |
1121 | break; |
1122 | case 'E': /* move down N lines and CR */ |
e14a5a13 |
1123 | compatibility(ANSI); |
374330e2 |
1124 | move (0, curs_y + def(esc_args[0], 1), 1); |
cabfd08c |
1125 | seen_disp_event = TRUE; |
374330e2 |
1126 | break; |
1127 | case 'F': /* move up N lines and CR */ |
e14a5a13 |
1128 | compatibility(ANSI); |
374330e2 |
1129 | move (0, curs_y - def(esc_args[0], 1), 1); |
cabfd08c |
1130 | seen_disp_event = TRUE; |
374330e2 |
1131 | break; |
1132 | case 'G': case '`': /* set horizontal posn */ |
e14a5a13 |
1133 | compatibility(ANSI); |
374330e2 |
1134 | move (def(esc_args[0], 1) - 1, curs_y, 0); |
cabfd08c |
1135 | seen_disp_event = TRUE; |
374330e2 |
1136 | break; |
1137 | case 'd': /* set vertical posn */ |
e14a5a13 |
1138 | compatibility(ANSI); |
374330e2 |
1139 | move (curs_x, (dec_om ? marg_t : 0) + def(esc_args[0], 1) - 1, |
1140 | (dec_om ? 2 : 0)); |
cabfd08c |
1141 | seen_disp_event = TRUE; |
374330e2 |
1142 | break; |
1143 | case 'H': case 'f': /* set horz and vert posns at once */ |
1144 | if (esc_nargs < 2) |
1145 | esc_args[1] = ARG_DEFAULT; |
1146 | move (def(esc_args[1], 1) - 1, |
1147 | (dec_om ? marg_t : 0) + def(esc_args[0], 1) - 1, |
1148 | (dec_om ? 2 : 0)); |
cabfd08c |
1149 | seen_disp_event = TRUE; |
374330e2 |
1150 | break; |
1151 | case 'J': /* erase screen or parts of it */ |
1152 | { |
1153 | unsigned int i = def(esc_args[0], 0) + 1; |
1154 | if (i > 3) |
1155 | i = 0; |
1156 | erase_lots(FALSE, !!(i & 2), !!(i & 1)); |
1157 | } |
1158 | disptop = scrtop; |
cabfd08c |
1159 | seen_disp_event = TRUE; |
374330e2 |
1160 | break; |
1161 | case 'K': /* erase line or parts of it */ |
1162 | { |
1163 | unsigned int i = def(esc_args[0], 0) + 1; |
1164 | if (i > 3) |
1165 | i = 0; |
1166 | erase_lots(TRUE, !!(i & 2), !!(i & 1)); |
1167 | } |
cabfd08c |
1168 | seen_disp_event = TRUE; |
374330e2 |
1169 | break; |
1170 | case 'L': /* insert lines */ |
e14a5a13 |
1171 | compatibility(VT102); |
374330e2 |
1172 | if (curs_y <= marg_b) |
1173 | scroll (curs_y, marg_b, -def(esc_args[0], 1), FALSE); |
cabfd08c |
1174 | seen_disp_event = TRUE; |
374330e2 |
1175 | break; |
1176 | case 'M': /* delete lines */ |
e14a5a13 |
1177 | compatibility(VT102); |
374330e2 |
1178 | if (curs_y <= marg_b) |
cabfd08c |
1179 | scroll (curs_y, marg_b, def(esc_args[0], 1), TRUE); |
1180 | seen_disp_event = TRUE; |
374330e2 |
1181 | break; |
1182 | case '@': /* insert chars */ |
e14a5a13 |
1183 | /* XXX VTTEST says this is vt220, vt510 manual says vt102 */ |
1184 | compatibility(VT102); |
374330e2 |
1185 | insch (def(esc_args[0], 1)); |
cabfd08c |
1186 | seen_disp_event = TRUE; |
374330e2 |
1187 | break; |
1188 | case 'P': /* delete chars */ |
e14a5a13 |
1189 | compatibility(VT102); |
374330e2 |
1190 | insch (-def(esc_args[0], 1)); |
cabfd08c |
1191 | seen_disp_event = TRUE; |
374330e2 |
1192 | break; |
1193 | case 'c': /* terminal type query */ |
e14a5a13 |
1194 | compatibility(VT100); |
1195 | /* This is the response for a VT102 */ |
c9def1b8 |
1196 | ldisc->send (id_string, strlen(id_string)); |
374330e2 |
1197 | break; |
1198 | case 'n': /* cursor position query */ |
1199 | if (esc_args[0] == 6) { |
1200 | char buf[32]; |
1201 | sprintf (buf, "\033[%d;%dR", curs_y + 1, curs_x + 1); |
5bc238bb |
1202 | ldisc->send (buf, strlen(buf)); |
374330e2 |
1203 | } |
e14a5a13 |
1204 | else if (esc_args[0] == 5) { |
e14a5a13 |
1205 | ldisc->send ("\033[0n", 4); |
1206 | } |
374330e2 |
1207 | break; |
e14a5a13 |
1208 | case 'h': /* toggle modes to high */ |
8b811b12 |
1209 | case ANSI_QUE('h'): |
e14a5a13 |
1210 | compatibility(VT100); |
1211 | { |
1212 | int i; |
1213 | for (i=0; i<esc_nargs; i++) |
1214 | toggle_mode (esc_args[i], esc_query, TRUE); |
1215 | } |
374330e2 |
1216 | break; |
e14a5a13 |
1217 | case 'l': /* toggle modes to low */ |
8b811b12 |
1218 | case ANSI_QUE('l'): |
e14a5a13 |
1219 | compatibility(VT100); |
1220 | { |
1221 | int i; |
1222 | for (i=0; i<esc_nargs; i++) |
1223 | toggle_mode (esc_args[i], esc_query, FALSE); |
1224 | } |
374330e2 |
1225 | break; |
1226 | case 'g': /* clear tabs */ |
e14a5a13 |
1227 | compatibility(VT100); |
374330e2 |
1228 | if (esc_nargs == 1) { |
1229 | if (esc_args[0] == 0) { |
1230 | tabs[curs_x] = FALSE; |
1231 | } else if (esc_args[0] == 3) { |
1232 | int i; |
1233 | for (i = 0; i < cols; i++) |
1234 | tabs[i] = FALSE; |
1235 | } |
1236 | } |
1237 | break; |
1238 | case 'r': /* set scroll margins */ |
e14a5a13 |
1239 | compatibility(VT100); |
8b811b12 |
1240 | if (esc_nargs <= 2) { |
374330e2 |
1241 | int top, bot; |
7e394092 |
1242 | top = def(esc_args[0], 1) - 1; |
1243 | bot = (esc_nargs <= 1 || esc_args[1] == 0 ? rows : |
1244 | def(esc_args[1], rows)) - 1; |
374330e2 |
1245 | if (bot >= rows) |
1246 | bot = rows-1; |
7e394092 |
1247 | /* VTTEST Bug 9 - if region is less than 2 lines |
1248 | * don't change region. |
1249 | */ |
83ea993b |
1250 | if (bot-top > 0) { |
374330e2 |
1251 | marg_t = top; |
1252 | marg_b = bot; |
1253 | curs_x = 0; |
1254 | /* |
1255 | * I used to think the cursor should be |
1256 | * placed at the top of the newly marginned |
1257 | * area. Apparently not: VMS TPU falls over |
1258 | * if so. |
e14a5a13 |
1259 | * |
1260 | * Well actually it should for Origin mode - RDB |
374330e2 |
1261 | */ |
e14a5a13 |
1262 | curs_y = (dec_om ? marg_t : 0); |
374330e2 |
1263 | fix_cpos; |
cabfd08c |
1264 | seen_disp_event = TRUE; |
374330e2 |
1265 | } |
1266 | } |
1267 | break; |
1268 | case 'm': /* set graphics rendition */ |
1269 | { |
e14a5a13 |
1270 | /* |
1271 | * A VT100 without the AVO only had one attribute, either |
1272 | * underline or reverse video depending on the cursor type, |
1273 | * this was selected by CSI 7m. |
1274 | * |
1275 | * case 2: |
1276 | * This is DIM on the VT100-AVO and VT102 |
1277 | * case 5: |
1278 | * This is BLINK on the VT100-AVO and VT102+ |
1279 | * case 8: |
1280 | * This is INVIS on the VT100-AVO and VT102 |
1281 | * case 21: |
1282 | * This like 22 disables BOLD, DIM and INVIS |
1283 | * |
1284 | * The ANSI colours appear on any terminal that has colour |
1285 | * (obviously) but the interaction between sgr0 and the |
1286 | * colours varies but is usually related to the background |
1287 | * colour erase item. |
1288 | * The interaction between colour attributes and the mono |
1289 | * ones is also very implementation dependent. |
1290 | * |
1291 | * The 39 and 49 attributes are likely to be unimplemented. |
1292 | */ |
374330e2 |
1293 | int i; |
1294 | for (i=0; i<esc_nargs; i++) { |
1295 | switch (def(esc_args[i], 0)) { |
1296 | case 0: /* restore defaults */ |
1297 | curr_attr = ATTR_DEFAULT; break; |
1298 | case 1: /* enable bold */ |
e14a5a13 |
1299 | compatibility(VT100AVO); |
374330e2 |
1300 | curr_attr |= ATTR_BOLD; break; |
374330e2 |
1301 | case 21: /* (enable double underline) */ |
e14a5a13 |
1302 | compatibility(OTHER); |
1303 | case 4: /* enable underline */ |
1304 | compatibility(VT100AVO); |
374330e2 |
1305 | curr_attr |= ATTR_UNDER; break; |
e14a5a13 |
1306 | case 5: /* enable blink */ |
1307 | compatibility(VT100AVO); |
1308 | curr_attr |= ATTR_BLINK; break; |
374330e2 |
1309 | case 7: /* enable reverse video */ |
1310 | curr_attr |= ATTR_REVERSE; break; |
1311 | case 22: /* disable bold */ |
ec55b220 |
1312 | compatibility2(OTHER,VT220); |
374330e2 |
1313 | curr_attr &= ~ATTR_BOLD; break; |
1314 | case 24: /* disable underline */ |
ec55b220 |
1315 | compatibility2(OTHER,VT220); |
374330e2 |
1316 | curr_attr &= ~ATTR_UNDER; break; |
e14a5a13 |
1317 | case 25: /* disable blink */ |
ec55b220 |
1318 | compatibility2(OTHER,VT220); |
e14a5a13 |
1319 | curr_attr &= ~ATTR_BLINK; break; |
374330e2 |
1320 | case 27: /* disable reverse video */ |
ec55b220 |
1321 | compatibility2(OTHER,VT220); |
374330e2 |
1322 | curr_attr &= ~ATTR_REVERSE; break; |
1323 | case 30: case 31: case 32: case 33: |
1324 | case 34: case 35: case 36: case 37: |
1325 | /* foreground */ |
1326 | curr_attr &= ~ATTR_FGMASK; |
1327 | curr_attr |= (esc_args[i] - 30) << ATTR_FGSHIFT; |
1328 | break; |
1329 | case 39: /* default-foreground */ |
1330 | curr_attr &= ~ATTR_FGMASK; |
1331 | curr_attr |= ATTR_DEFFG; |
1332 | break; |
1333 | case 40: case 41: case 42: case 43: |
1334 | case 44: case 45: case 46: case 47: |
1335 | /* background */ |
1336 | curr_attr &= ~ATTR_BGMASK; |
1337 | curr_attr |= (esc_args[i] - 40) << ATTR_BGSHIFT; |
1338 | break; |
1339 | case 49: /* default-background */ |
1340 | curr_attr &= ~ATTR_BGMASK; |
1341 | curr_attr |= ATTR_DEFBG; |
1342 | break; |
1343 | } |
1344 | } |
e14a5a13 |
1345 | if (use_bce) |
c9def1b8 |
1346 | erase_char = |
1347 | (' '| |
1348 | (curr_attr&(ATTR_FGMASK|ATTR_BGMASK|ATTR_BLINK)) |
1349 | ); |
374330e2 |
1350 | } |
1351 | break; |
1352 | case 's': /* save cursor */ |
1353 | save_cursor (TRUE); |
1354 | break; |
1355 | case 'u': /* restore cursor */ |
1356 | save_cursor (FALSE); |
cabfd08c |
1357 | seen_disp_event = TRUE; |
374330e2 |
1358 | break; |
1359 | case 't': /* set page size - ie window height */ |
e14a5a13 |
1360 | /* |
1361 | * VT340/VT420 sequence DECSLPP, DEC only allows values |
1362 | * 24/25/36/48/72/144 other emulators (eg dtterm) use |
1363 | * illegal values (eg first arg 1..9) for window changing |
1364 | * and reports. |
1365 | */ |
1366 | compatibility(VT340TEXT); |
1367 | if (esc_nargs<=1 && (esc_args[0]<1 || esc_args[0]>=24)) { |
c9def1b8 |
1368 | request_resize (cols, def(esc_args[0], 24), 0); |
e14a5a13 |
1369 | deselect(); |
1370 | } |
1371 | break; |
1372 | case ANSI('|', '*'): |
1373 | /* VT420 sequence DECSNLS |
1374 | * Set number of lines on screen |
1375 | * VT420 uses VGA like hardware and can support any size in |
1376 | * reasonable range (24..49 AIUI) with no default specified. |
1377 | */ |
1378 | compatibility(VT420); |
c9def1b8 |
1379 | if (esc_nargs==1 && esc_args[0]>0) { |
1380 | request_resize (cols, def(esc_args[0], cfg.height), 0); |
e14a5a13 |
1381 | deselect(); |
1382 | } |
1383 | break; |
1384 | case ANSI('|', '$'): |
1385 | /* VT340/VT420 sequence DECSCPP |
1386 | * Set number of columns per page |
1387 | * Docs imply range is only 80 or 132, but I'll allow any. |
1388 | */ |
1389 | compatibility(VT340TEXT); |
1390 | if (esc_nargs<=1) { |
c9def1b8 |
1391 | request_resize (def(esc_args[0], cfg.width), rows, 0); |
e14a5a13 |
1392 | deselect(); |
1393 | } |
374330e2 |
1394 | break; |
1395 | case 'X': /* write N spaces w/o moving cursor */ |
e14a5a13 |
1396 | /* XXX VTTEST says this is vt220, vt510 manual says vt100 */ |
c9def1b8 |
1397 | compatibility(ANSIMIN); |
374330e2 |
1398 | { |
1399 | int n = def(esc_args[0], 1); |
1400 | unsigned long *p = cpos; |
1401 | if (n > cols - curs_x) |
1402 | n = cols - curs_x; |
1403 | check_selection (cpos, cpos+n); |
1404 | while (n--) |
e14a5a13 |
1405 | *p++ = erase_char; |
cabfd08c |
1406 | seen_disp_event = TRUE; |
374330e2 |
1407 | } |
1408 | break; |
1409 | case 'x': /* report terminal characteristics */ |
e14a5a13 |
1410 | compatibility(VT100); |
374330e2 |
1411 | { |
1412 | char buf[32]; |
1413 | int i = def(esc_args[0], 0); |
1414 | if (i == 0 || i == 1) { |
1415 | strcpy (buf, "\033[2;1;1;112;112;1;0x"); |
1416 | buf[2] += i; |
5bc238bb |
1417 | ldisc->send (buf, 20); |
374330e2 |
1418 | } |
1419 | } |
1420 | break; |
e14a5a13 |
1421 | case ANSI('L','='): |
1422 | compatibility(OTHER); |
1423 | use_bce = (esc_args[0]<=0); |
1424 | erase_char = ERASE_CHAR; |
1425 | if (use_bce) |
1426 | erase_char = (' '|(curr_attr&(ATTR_FGMASK|ATTR_BGMASK))); |
1427 | break; |
c9def1b8 |
1428 | case ANSI('E','='): |
1429 | compatibility(OTHER); |
1430 | blink_is_real = (esc_args[0]>=1); |
1431 | break; |
e14a5a13 |
1432 | case ANSI('p','"'): |
1433 | /* Allow the host to make this emulator a 'perfect' VT102. |
1434 | * This first appeared in the VT220, but we do need to get |
1435 | * back to PuTTY mode so I won't check it. |
1436 | * |
ec55b220 |
1437 | * The arg in 40..42 are a PuTTY extension. |
1438 | * The 2nd arg, 8bit vs 7bit is not checked. |
e14a5a13 |
1439 | * |
1440 | * Setting VT102 mode should also change the Fkeys to |
1441 | * generate PF* codes as a real VT102 has no Fkeys. |
1442 | * The VT220 does this, F11..F13 become ESC,BS,LF other Fkeys |
1443 | * send nothing. |
1444 | * |
1445 | * Note ESC c will NOT change this! |
1446 | */ |
1447 | |
ec55b220 |
1448 | switch (esc_args[0]) { |
1449 | case 61: compatibility_level &= ~TM_VTXXX; |
1450 | compatibility_level |= TM_VT102; break; |
1451 | case 62: compatibility_level &= ~TM_VTXXX; |
1452 | compatibility_level |= TM_VT220; break; |
1453 | |
1454 | default: if( esc_args[0] > 60 && esc_args[0] < 70 ) |
1455 | compatibility_level |= TM_VTXXX; |
1456 | break; |
1457 | |
1458 | case 40: compatibility_level &= TM_VTXXX; break; |
1459 | case 41: compatibility_level = TM_PUTTY; break; |
1460 | case 42: compatibility_level = TM_SCOANSI; break; |
1461 | |
1462 | case ARG_DEFAULT: |
1463 | compatibility_level = TM_PUTTY; break; |
1464 | case 50: break; |
1465 | } |
1466 | |
1467 | /* Change the response to CSI c */ |
1468 | if (esc_args[0] == 50) { |
1469 | int i; |
1470 | char lbuf[64]; |
1471 | strcpy(id_string, "\033[?"); |
1472 | for (i=1; i<esc_nargs; i++) { |
1473 | if (i!=1) strcat(id_string, ";"); |
1474 | sprintf(lbuf, "%d", esc_args[i]); |
1475 | strcat(id_string, lbuf); |
1476 | } |
1477 | strcat(id_string, "c"); |
1478 | } |
1479 | |
1480 | #if 0 |
1481 | /* Is this a good idea ? |
1482 | * Well we should do a soft reset at this point ... |
1483 | */ |
1484 | if (!has_compat(VT420) && has_compat(VT100)) { |
1485 | if (reset_132) request_resize (132, 24, 1); |
1486 | else request_resize ( 80, 24, 1); |
1487 | } |
1488 | #endif |
e14a5a13 |
1489 | break; |
374330e2 |
1490 | } |
1491 | break; |
1492 | case SET_GL: |
1493 | case SET_GR: |
e14a5a13 |
1494 | /* VT100 only here, checked above */ |
374330e2 |
1495 | switch (c) { |
1496 | case 'A': |
1497 | cset_attr[termstate == SET_GL ? 0 : 1] = ATTR_GBCHR; |
1498 | break; |
1499 | case '0': |
1500 | cset_attr[termstate == SET_GL ? 0 : 1] = ATTR_LINEDRW; |
1501 | break; |
e14a5a13 |
1502 | case 'B': |
374330e2 |
1503 | default: /* specifically, 'B' */ |
1504 | cset_attr[termstate == SET_GL ? 0 : 1] = ATTR_ASCII; |
1505 | break; |
1506 | } |
e14a5a13 |
1507 | if( !has_compat(VT220) || c != '%' ) |
8b811b12 |
1508 | termstate = TOPLEVEL; |
374330e2 |
1509 | break; |
1510 | case SEEN_OSC: |
1511 | osc_w = FALSE; |
1512 | switch (c) { |
374330e2 |
1513 | case 'P': /* Linux palette sequence */ |
1514 | termstate = SEEN_OSC_P; |
1515 | osc_strlen = 0; |
1516 | break; |
1517 | case 'R': /* Linux palette reset */ |
1518 | palette_reset(); |
1519 | term_invalidate(); |
1520 | termstate = TOPLEVEL; |
1521 | break; |
1522 | case 'W': /* word-set */ |
1523 | termstate = SEEN_OSC_W; |
1524 | osc_w = TRUE; |
1525 | break; |
1526 | case '0': case '1': case '2': case '3': case '4': |
1527 | case '5': case '6': case '7': case '8': case '9': |
1528 | esc_args[0] = 10 * esc_args[0] + c - '0'; |
1529 | break; |
1530 | case 'L': |
1531 | /* |
1532 | * Grotty hack to support xterm and DECterm title |
1533 | * sequences concurrently. |
1534 | */ |
1535 | if (esc_args[0] == 2) { |
1536 | esc_args[0] = 1; |
1537 | break; |
1538 | } |
1539 | /* else fall through */ |
1540 | default: |
1541 | termstate = OSC_STRING; |
1542 | osc_strlen = 0; |
1543 | } |
1544 | break; |
1545 | case OSC_STRING: |
8b811b12 |
1546 | /* |
1547 | * This OSC stuff is EVIL. It takes just one character to get into |
1548 | * sysline mode and it's not initially obvious how to get out. |
1549 | * So I've added CR and LF as string aborts. |
1550 | * This shouldn't effect compatibility as I believe embedded |
1551 | * control characters are supposed to be interpreted (maybe?) |
1552 | * and they don't display anything useful anyway. |
1553 | * |
1554 | * -- RDB |
1555 | */ |
1556 | if (c == '\n' || c == '\r') { |
1557 | termstate = TOPLEVEL; |
1558 | } else if (c == 0234 || c == '\007' ) { |
374330e2 |
1559 | /* |
1560 | * These characters terminate the string; ST and BEL |
1561 | * terminate the sequence and trigger instant |
1562 | * processing of it, whereas ESC goes back to SEEN_ESC |
1563 | * mode unless it is followed by \, in which case it is |
1564 | * synonymous with ST in the first place. |
1565 | */ |
1566 | do_osc(); |
1567 | termstate = TOPLEVEL; |
1568 | } else if (c == '\033') |
1569 | termstate = OSC_MAYBE_ST; |
1570 | else if (osc_strlen < OSC_STR_MAX) |
1571 | osc_string[osc_strlen++] = c; |
1572 | break; |
1573 | case SEEN_OSC_P: |
1574 | { |
1575 | int max = (osc_strlen == 0 ? 21 : 16); |
1576 | int val; |
1577 | if (c >= '0' && c <= '9') |
1578 | val = c - '0'; |
1579 | else if (c >= 'A' && c <= 'A'+max-10) |
1580 | val = c - 'A' + 10; |
1581 | else if (c >= 'a' && c <= 'a'+max-10) |
1582 | val = c - 'a' + 10; |
1583 | else |
1584 | termstate = TOPLEVEL; |
1585 | osc_string[osc_strlen++] = val; |
1586 | if (osc_strlen >= 7) { |
1587 | palette_set (osc_string[0], |
1588 | osc_string[1] * 16 + osc_string[2], |
1589 | osc_string[3] * 16 + osc_string[4], |
1590 | osc_string[5] * 16 + osc_string[6]); |
1591 | term_invalidate(); |
1592 | termstate = TOPLEVEL; |
1593 | } |
1594 | } |
1595 | break; |
1596 | case SEEN_OSC_W: |
1597 | switch (c) { |
374330e2 |
1598 | case '0': case '1': case '2': case '3': case '4': |
1599 | case '5': case '6': case '7': case '8': case '9': |
1600 | esc_args[0] = 10 * esc_args[0] + c - '0'; |
1601 | break; |
1602 | default: |
1603 | termstate = OSC_STRING; |
1604 | osc_strlen = 0; |
1605 | } |
1606 | break; |
1607 | case SEEN_ESCHASH: |
c9def1b8 |
1608 | { |
1609 | unsigned long *p; |
1610 | unsigned long nlattr; |
1611 | int n; |
1612 | |
1613 | switch (c) { |
1614 | case '8': |
1615 | p = scrtop; |
1616 | n = rows * (cols+1); |
1617 | while (n--) |
1618 | *p++ = ATTR_DEFAULT | 'E'; |
1619 | disptop = scrtop; |
1620 | seen_disp_event = TRUE; |
1621 | check_selection (scrtop, scrtop + rows * (cols+1)); |
1622 | break; |
1623 | |
1624 | case '3': nlattr = LATTR_TOP; if(0) { |
1625 | case '4': nlattr = LATTR_BOT; } if(0) { |
1626 | case '5': nlattr = LATTR_NORM; } if(0) { |
1627 | case '6': nlattr = LATTR_WIDE; } |
1628 | |
1629 | p = scrtop + curs_y * (cols+1) + cols; |
1630 | *p &= ~LATTR_MODE; |
1631 | *p |= nlattr; |
1632 | } |
374330e2 |
1633 | } |
1634 | termstate = TOPLEVEL; |
1635 | break; |
e14a5a13 |
1636 | case VT52_ESC: |
1637 | termstate = TOPLEVEL; |
1638 | seen_disp_event = TRUE; |
1639 | switch (c) { |
1640 | case 'A': |
1641 | move (curs_x, curs_y - 1, 1); |
1642 | break; |
1643 | case 'B': |
1644 | move (curs_x, curs_y + 1, 1); |
1645 | break; |
1646 | case 'C': |
1647 | move (curs_x + 1, curs_y, 1); |
1648 | break; |
1649 | case 'D': |
1650 | move (curs_x - 1, curs_y, 1); |
1651 | break; |
1652 | case 'F': |
1653 | cset_attr[cset=0] = ATTR_LINEDRW; |
1654 | break; |
1655 | case 'G': |
1656 | cset_attr[cset=0] = ATTR_ASCII; |
1657 | break; |
1658 | case 'H': |
1659 | move (0, 0, 0); |
1660 | break; |
1661 | case 'I': |
1662 | if (curs_y == 0) |
1663 | scroll (0, rows-1, -1, TRUE); |
1664 | else if (curs_y > 0) |
1665 | curs_y--; |
1666 | fix_cpos; |
1667 | wrapnext = FALSE; |
1668 | break; |
1669 | case 'J': |
1670 | erase_lots(FALSE, FALSE, TRUE); |
1671 | disptop = scrtop; |
1672 | break; |
1673 | case 'K': |
1674 | erase_lots(TRUE, FALSE, TRUE); |
1675 | break; |
1676 | case 'V': |
1677 | /* XXX Print cursor line */ |
1678 | break; |
1679 | case 'W': |
1680 | /* XXX Start controller mode */ |
1681 | break; |
1682 | case 'X': |
1683 | /* XXX Stop controller mode */ |
1684 | break; |
1685 | case 'Y': |
1686 | termstate = VT52_Y1; |
1687 | break; |
1688 | case 'Z': |
1689 | ldisc->send ("\033/Z", 3); |
1690 | break; |
1691 | case '=': |
ec55b220 |
1692 | app_keypad_keys = TRUE; |
e14a5a13 |
1693 | break; |
1694 | case '>': |
ec55b220 |
1695 | app_keypad_keys = FALSE; |
e14a5a13 |
1696 | break; |
1697 | case '<': |
1698 | /* XXX This should switch to VT100 mode not current or default |
1699 | * VT mode. But this will only have effect in a VT220+ |
1700 | * emulation. |
1701 | */ |
1702 | vt52_mode = FALSE; |
1703 | break; |
1704 | case '^': |
1705 | /* XXX Enter auto print mode */ |
1706 | break; |
1707 | case '_': |
1708 | /* XXX Exit auto print mode */ |
1709 | break; |
1710 | case ']': |
1711 | /* XXX Print screen */ |
1712 | break; |
1713 | } |
1714 | break; |
1715 | case VT52_Y1: |
1716 | termstate = VT52_Y2; |
1717 | move(curs_x, c-' ', 0); |
1718 | break; |
1719 | case VT52_Y2: |
1720 | termstate = TOPLEVEL; |
1721 | move(c-' ', curs_y, 0); |
1722 | break; |
374330e2 |
1723 | } |
e14a5a13 |
1724 | if (selstate != NO_SELECTION) |
1725 | check_selection (cpos, cpos+1); |
374330e2 |
1726 | } |
c9def1b8 |
1727 | inbuf_head = 0; |
1728 | |
1729 | if (beep_overload) |
1730 | { |
1731 | if(!beep_count) beep_overload=0; |
1732 | } |
1733 | else if(beep_count && beep_count<5 && cfg.beep) |
1734 | beep(beep_count/3); |
374330e2 |
1735 | } |
1736 | |
1737 | /* |
1738 | * Compare two lines to determine whether they are sufficiently |
1739 | * alike to scroll-optimise one to the other. Return the degree of |
1740 | * similarity. |
1741 | */ |
1742 | static int linecmp (unsigned long *a, unsigned long *b) { |
1743 | int i, n; |
1744 | |
1745 | for (i=n=0; i < cols; i++) |
1746 | n += (*a++ == *b++); |
1747 | return n; |
1748 | } |
1749 | |
1750 | /* |
1751 | * Given a context, update the window. Out of paranoia, we don't |
1752 | * allow WM_PAINT responses to do scrolling optimisations. |
1753 | */ |
ec8679e9 |
1754 | static void do_paint (Context ctx, int may_optimise){ |
374330e2 |
1755 | int i, j, start, our_curs_y; |
1756 | unsigned long attr, rv, cursor; |
1757 | char ch[1024]; |
1758 | |
e14a5a13 |
1759 | if (cursor_on) { |
1760 | if (has_focus) { |
217dceef |
1761 | if (blinker || !cfg.blink_cur) |
1762 | cursor = ATTR_ACTCURS; |
1763 | else |
1764 | cursor = 0; |
e14a5a13 |
1765 | } |
1766 | else |
1767 | cursor = ATTR_PASCURS; |
1768 | } |
1769 | else cursor = 0; |
374330e2 |
1770 | rv = (rvideo ? ATTR_REVERSE : 0); |
1771 | our_curs_y = curs_y + (scrtop - disptop) / (cols+1); |
1772 | |
1773 | for (i=0; i<rows; i++) { |
1774 | int idx = i*(cols+1); |
c9def1b8 |
1775 | int lattr = (disptop[idx+cols] & LATTR_MODE); |
374330e2 |
1776 | for (j=0; j<=cols; j++,idx++) { |
1777 | unsigned long *d = disptop+idx; |
c9def1b8 |
1778 | wanttext[idx] = lattr | ((*d ^ rv |
374330e2 |
1779 | ^ (selstart <= d && d < selend ? |
1780 | ATTR_REVERSE : 0)) | |
1781 | (i==our_curs_y && j==curs_x ? cursor : 0)); |
c9def1b8 |
1782 | |
1783 | if (blink_is_real) { |
1784 | if (has_focus && tblinker && (wanttext[idx]&ATTR_BLINK) ) |
1785 | { |
1786 | wanttext[idx] &= ATTR_MASK; |
1787 | wanttext[idx] += ' '; |
1788 | } |
1789 | wanttext[idx] &= ~ATTR_BLINK; |
1790 | } |
374330e2 |
1791 | } |
1792 | } |
1793 | |
1794 | /* |
1795 | * We would perform scrolling optimisations in here, if they |
1796 | * didn't have a nasty tendency to cause the whole sodding |
1797 | * program to hang for a second at speed-critical moments. |
1798 | * We'll leave it well alone... |
1799 | */ |
1800 | |
1801 | for (i=0; i<rows; i++) { |
1802 | int idx = i*(cols+1); |
c9def1b8 |
1803 | int lattr = (wanttext[idx+cols] & LATTR_MODE); |
374330e2 |
1804 | start = -1; |
1805 | for (j=0; j<=cols; j++,idx++) { |
1806 | unsigned long t = wanttext[idx]; |
1807 | int needs_update = (j < cols && t != disptext[idx]); |
1808 | int keep_going = (start != -1 && needs_update && |
1809 | (t & ATTR_MASK) == attr && |
1810 | j-start < sizeof(ch)); |
1811 | if (start != -1 && !keep_going) { |
c9def1b8 |
1812 | do_text (ctx, start, i, ch, j-start, attr, lattr); |
374330e2 |
1813 | start = -1; |
1814 | } |
1815 | if (needs_update) { |
1816 | if (start == -1) { |
1817 | start = j; |
1818 | attr = t & ATTR_MASK; |
1819 | } |
1820 | ch[j-start] = (char) (t & CHAR_MASK); |
1821 | } |
1822 | disptext[idx] = t; |
1823 | } |
1824 | } |
1825 | } |
1826 | |
1827 | /* |
e14a5a13 |
1828 | * Flick the switch that says if blinking things should be shown or hidden. |
1829 | */ |
1830 | |
1831 | void term_blink(int flg) { |
1832 | static long last_blink = 0; |
c9def1b8 |
1833 | static long last_tblink = 0; |
e14a5a13 |
1834 | long now, blink_diff; |
1835 | |
c9def1b8 |
1836 | now = GetTickCount(); |
1837 | blink_diff = now-last_tblink; |
1838 | |
1839 | /* Make sure the text blinks no more than 2Hz */ |
1840 | if (blink_diff<0 || blink_diff>450) |
1841 | { |
1842 | last_tblink = now; |
1843 | tblinker = !tblinker; |
1844 | } |
1845 | |
e14a5a13 |
1846 | if (flg) { |
1847 | blinker = 1; |
c9def1b8 |
1848 | last_blink = now; |
e14a5a13 |
1849 | return; |
1850 | } |
e14a5a13 |
1851 | |
1852 | blink_diff = now-last_blink; |
1853 | |
1854 | /* Make sure the cursor blinks no more than 2Hz */ |
1855 | if (blink_diff>=0 && blink_diff<450) |
1856 | return; |
1857 | |
1858 | last_blink = now; |
1859 | blinker = !blinker; |
1860 | } |
1861 | |
1862 | /* |
374330e2 |
1863 | * Invalidate the whole screen so it will be repainted in full. |
1864 | */ |
1865 | void term_invalidate(void) { |
1866 | int i; |
1867 | |
1868 | for (i=0; i<rows*(cols+1); i++) |
1869 | disptext[i] = ATTR_INVALID; |
1870 | } |
1871 | |
1872 | /* |
1873 | * Paint the window in response to a WM_PAINT message. |
1874 | */ |
1875 | void term_paint (Context ctx, int l, int t, int r, int b) { |
1876 | int i, j, left, top, right, bottom; |
1877 | |
1878 | left = l / font_width; |
1879 | right = (r - 1) / font_width; |
1880 | top = t / font_height; |
1881 | bottom = (b - 1) / font_height; |
e42ad027 |
1882 | for (i = top; i <= bottom && i < rows ; i++) |
c9def1b8 |
1883 | { |
1884 | if ( (disptext[i*(cols+1)+cols]&LATTR_MODE) == LATTR_NORM) |
1885 | for (j = left; j <= right && j < cols ; j++) |
1886 | disptext[i*(cols+1)+j] = ATTR_INVALID; |
1887 | else |
1888 | for (j = left/2; j <= right/2+1 && j < cols ; j++) |
1889 | disptext[i*(cols+1)+j] = ATTR_INVALID; |
1890 | } |
374330e2 |
1891 | |
e14a5a13 |
1892 | /* This should happen soon enough, also for some reason it sometimes |
1893 | * fails to actually do anything when re-sizing ... painting the wrong |
1894 | * window perhaps ? |
374330e2 |
1895 | do_paint (ctx, FALSE); |
e14a5a13 |
1896 | */ |
374330e2 |
1897 | } |
1898 | |
1899 | /* |
1900 | * Attempt to scroll the scrollback. The second parameter gives the |
1901 | * position we want to scroll to; the first is +1 to denote that |
1902 | * this position is relative to the beginning of the scrollback, -1 |
1903 | * to denote it is relative to the end, and 0 to denote that it is |
1904 | * relative to the current position. |
1905 | */ |
1906 | void term_scroll (int rel, int where) { |
1907 | int n = where * (cols+1); |
1908 | |
1909 | disptop = (rel < 0 ? scrtop : |
1910 | rel > 0 ? sbtop : disptop) + n; |
1911 | if (disptop < sbtop) |
1912 | disptop = sbtop; |
1913 | if (disptop > scrtop) |
1914 | disptop = scrtop; |
1915 | update_sbar(); |
1916 | term_update(); |
1917 | } |
1918 | |
1919 | /* |
1920 | * Spread the selection outwards according to the selection mode. |
1921 | */ |
1922 | static unsigned long *sel_spread_half (unsigned long *p, int dir) { |
1923 | unsigned long *linestart, *lineend; |
1924 | int x; |
1925 | short wvalue; |
1926 | |
1927 | x = (p - text) % (cols+1); |
1928 | linestart = p - x; |
1929 | lineend = linestart + cols; |
1930 | |
1931 | switch (selmode) { |
1932 | case SM_CHAR: |
1933 | /* |
1934 | * In this mode, every character is a separate unit, except |
1935 | * for runs of spaces at the end of a non-wrapping line. |
1936 | */ |
1937 | if (!(linestart[cols] & ATTR_WRAPPED)) { |
1938 | unsigned long *q = lineend; |
1939 | while (q > linestart && (q[-1] & CHAR_MASK) == 0x20) |
1940 | q--; |
1941 | if (q == lineend) |
1942 | q--; |
1943 | if (p >= q) |
1944 | p = (dir == -1 ? q : lineend - 1); |
1945 | } |
1946 | break; |
1947 | case SM_WORD: |
1948 | /* |
1949 | * In this mode, the units are maximal runs of characters |
1950 | * whose `wordness' has the same value. |
1951 | */ |
1952 | wvalue = wordness[*p & CHAR_MASK]; |
1953 | if (dir == +1) { |
1954 | while (p < lineend && wordness[p[1] & CHAR_MASK] == wvalue) |
1955 | p++; |
1956 | } else { |
1957 | while (p > linestart && wordness[p[-1] & CHAR_MASK] == wvalue) |
1958 | p--; |
1959 | } |
1960 | break; |
1961 | case SM_LINE: |
1962 | /* |
1963 | * In this mode, every line is a unit. |
1964 | */ |
1965 | p = (dir == -1 ? linestart : lineend - 1); |
1966 | break; |
1967 | } |
1968 | return p; |
1969 | } |
1970 | |
1971 | static void sel_spread (void) { |
1972 | selstart = sel_spread_half (selstart, -1); |
1973 | selend = sel_spread_half (selend - 1, +1) + 1; |
1974 | } |
1975 | |
1976 | void term_mouse (Mouse_Button b, Mouse_Action a, int x, int y) { |
37508af4 |
1977 | unsigned long *selpoint; |
1978 | |
1979 | if (y<0) y = 0; |
1980 | if (y>=rows) y = rows-1; |
094ed2a6 |
1981 | if (x<0) { |
1982 | if (y > 0) { |
1983 | x = cols-1; |
1984 | y--; |
1985 | } else |
1986 | x = 0; |
1987 | } |
37508af4 |
1988 | if (x>=cols) x = cols-1; |
1989 | |
c9def1b8 |
1990 | selpoint = disptop + y * (cols+1); |
1991 | if ((selpoint[cols]&LATTR_MODE) != LATTR_NORM) |
1992 | selpoint += x/2; |
1993 | else |
1994 | selpoint += x; |
374330e2 |
1995 | |
1996 | if (b == MB_SELECT && a == MA_CLICK) { |
1997 | deselect(); |
1998 | selstate = ABOUT_TO; |
1999 | selanchor = selpoint; |
2000 | selmode = SM_CHAR; |
2001 | } else if (b == MB_SELECT && (a == MA_2CLK || a == MA_3CLK)) { |
2002 | deselect(); |
2003 | selmode = (a == MA_2CLK ? SM_WORD : SM_LINE); |
2004 | selstate = DRAGGING; |
2005 | selstart = selanchor = selpoint; |
2006 | selend = selstart + 1; |
2007 | sel_spread(); |
2008 | } else if ((b == MB_SELECT && a == MA_DRAG) || |
2009 | (b == MB_EXTEND && a != MA_RELEASE)) { |
2010 | if (selstate == ABOUT_TO && selanchor == selpoint) |
2011 | return; |
2012 | if (b == MB_EXTEND && a != MA_DRAG && selstate == SELECTED) { |
2013 | if (selpoint-selstart < (selend-selstart)/2) |
2014 | selanchor = selend - 1; |
2015 | else |
2016 | selanchor = selstart; |
2017 | selstate = DRAGGING; |
2018 | } |
2019 | if (selstate != ABOUT_TO && selstate != DRAGGING) |
2020 | selanchor = selpoint; |
2021 | selstate = DRAGGING; |
2022 | if (selpoint < selanchor) { |
2023 | selstart = selpoint; |
2024 | selend = selanchor + 1; |
2025 | } else { |
2026 | selstart = selanchor; |
2027 | selend = selpoint + 1; |
2028 | } |
2029 | sel_spread(); |
2030 | } else if ((b == MB_SELECT || b == MB_EXTEND) && a == MA_RELEASE) { |
2031 | if (selstate == DRAGGING) { |
2032 | /* |
2033 | * We've completed a selection. We now transfer the |
2034 | * data to the clipboard. |
2035 | */ |
2036 | unsigned char *p = selspace; |
2037 | unsigned long *q = selstart; |
2038 | |
2039 | while (q < selend) { |
2040 | int nl = FALSE; |
2041 | unsigned long *lineend = q - (q-text) % (cols+1) + cols; |
2042 | unsigned long *nlpos = lineend; |
2043 | |
2044 | if (!(*nlpos & ATTR_WRAPPED)) { |
2045 | while ((nlpos[-1] & CHAR_MASK) == 0x20 && nlpos > q) |
2046 | nlpos--; |
2047 | if (nlpos < selend) |
2048 | nl = TRUE; |
2049 | } |
2050 | while (q < nlpos && q < selend) |
ec55b220 |
2051 | { |
dcfa5de1 |
2052 | #if 0 |
ec55b220 |
2053 | /* VT Specials -> ISO8859-1 */ |
2054 | static const char poorman2[] = |
2055 | "* # HTFFCRLF\xB0 \xB1 NLVT+ + + + + - - - - - + + + + | <=>=PI!=\xA3 \xB7 "; |
dcfa5de1 |
2056 | #endif |
ec55b220 |
2057 | |
2058 | int ch = (*q & CHAR_MASK); |
2059 | |
dcfa5de1 |
2060 | #if 0 |
2061 | if ((*q & ATTR_LINEDRW) && ch >= 0x60 && ch < 0x7F) { |
ec55b220 |
2062 | int x; |
2063 | *p++ = poorman2[2*(ch-0x60)]; |
2064 | if ( (x = poorman2[2*(ch-0x60)+1]) != ' ') |
2065 | *p++ = x; |
dcfa5de1 |
2066 | } else |
2067 | #endif |
ec55b220 |
2068 | #if 0 |
dcfa5de1 |
2069 | if ((*q & ATTR_GBCHR) && ch == '#') |
ec55b220 |
2070 | *p++ = (unsigned char) 0xA3; |
ec55b220 |
2071 | else |
dcfa5de1 |
2072 | #endif |
ec55b220 |
2073 | *p++ = (unsigned char) ch; |
2074 | q++; |
2075 | } |
374330e2 |
2076 | if (nl) { |
2077 | int i; |
2078 | for (i=0; i<sizeof(sel_nl); i++) |
2079 | *p++ = sel_nl[i]; |
2080 | } |
2081 | q = lineend + 1; /* start of next line */ |
2082 | } |
f0df44da |
2083 | write_clip (selspace, p - selspace, FALSE); |
374330e2 |
2084 | selstate = SELECTED; |
2085 | } else |
2086 | selstate = NO_SELECTION; |
2087 | } else if (b == MB_PASTE && (a==MA_CLICK || a==MA_2CLK || a==MA_3CLK)) { |
2088 | char *data; |
2089 | int len; |
2090 | |
2091 | get_clip((void **) &data, &len); |
2092 | if (data) { |
2093 | char *p, *q; |
c9def1b8 |
2094 | |
2095 | if (paste_buffer) sfree(paste_buffer); |
2096 | paste_pos = paste_hold = paste_len = 0; |
2097 | paste_buffer = smalloc(len); |
2098 | |
374330e2 |
2099 | p = q = data; |
2100 | while (p < data+len) { |
2101 | while (p < data+len && |
2102 | !(p <= data+len-sizeof(sel_nl) && |
2103 | !memcmp(p, sel_nl, sizeof(sel_nl)))) |
2104 | p++; |
14963b8f |
2105 | |
2106 | { |
2107 | int i; |
2108 | unsigned char c; |
2109 | for(i=0;i<p-q;i++) |
2110 | { |
2111 | c=xlat_kbd2tty(q[i]); |
c9def1b8 |
2112 | paste_buffer[paste_len++] = c; |
14963b8f |
2113 | } |
2114 | } |
2115 | |
374330e2 |
2116 | if (p <= data+len-sizeof(sel_nl) && |
2117 | !memcmp(p, sel_nl, sizeof(sel_nl))) { |
c9def1b8 |
2118 | paste_buffer[paste_len++] = '\r'; |
374330e2 |
2119 | p += sizeof(sel_nl); |
2120 | } |
2121 | q = p; |
2122 | } |
c9def1b8 |
2123 | |
2124 | /* Assume a small paste will be OK in one go. */ |
2125 | if (paste_len<256) { |
2126 | ldisc->send (paste_buffer, paste_len); |
2127 | if (paste_buffer) sfree(paste_buffer); |
2128 | paste_buffer = 0; |
2129 | paste_pos = paste_hold = paste_len = 0; |
2130 | } |
374330e2 |
2131 | } |
2132 | get_clip(NULL, NULL); |
2133 | } |
2134 | |
2135 | term_update(); |
2136 | } |
2137 | |
c9def1b8 |
2138 | void term_nopaste() { |
2139 | if(paste_len == 0) return; |
2140 | sfree(paste_buffer); |
2141 | paste_buffer = 0; |
2142 | paste_len = 0; |
2143 | } |
2144 | |
2145 | void term_paste() { |
8df7a775 |
2146 | static long last_paste = 0; |
c9def1b8 |
2147 | long now, paste_diff; |
2148 | |
2149 | if(paste_len == 0) return; |
2150 | |
2151 | /* Don't wait forever to paste */ |
2152 | if(paste_hold) { |
2153 | now = GetTickCount(); |
2154 | paste_diff = now-last_paste; |
2155 | if (paste_diff>=0 && paste_diff<450) |
2156 | return; |
2157 | } |
2158 | paste_hold = 0; |
2159 | |
2160 | while(paste_pos<paste_len) |
2161 | { |
8df7a775 |
2162 | int n = 0; |
2163 | while (n + paste_pos < paste_len) { |
2164 | if (paste_buffer[paste_pos + n++] == '\r') |
2165 | break; |
2166 | } |
2167 | ldisc->send (paste_buffer+paste_pos, n); |
2168 | paste_pos += n; |
c9def1b8 |
2169 | |
8df7a775 |
2170 | if (paste_pos < paste_len) { |
c9def1b8 |
2171 | paste_hold = 1; |
2172 | return; |
2173 | } |
2174 | } |
2175 | sfree(paste_buffer); |
2176 | paste_buffer = 0; |
2177 | paste_len = 0; |
2178 | } |
2179 | |
374330e2 |
2180 | static void deselect (void) { |
2181 | selstate = NO_SELECTION; |
2182 | selstart = selend = scrtop; |
2183 | } |
2184 | |
2185 | void term_deselect (void) { |
2186 | deselect(); |
2187 | term_update(); |
2188 | } |
fe50e814 |
2189 | |
2190 | /* |
2191 | * from_backend(), to get data from the backend for the terminal. |
2192 | */ |
2193 | void from_backend(int is_stderr, char *data, int len) { |
2194 | while (len--) { |
2195 | if (inbuf_head >= INBUF_SIZE) |
2196 | term_out(); |
2197 | inbuf[inbuf_head++] = *data++; |
2198 | } |
2199 | } |