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Comparing rxvt-unicode/src/screen.C (file contents):
Revision 1.175 by root, Tue Dec 20 19:30:59 2005 UTC vs.
Revision 1.189 by root, Thu Dec 22 15:28:15 2005 UTC

… …
83#define ROWCOL_IN_ROW_AT_OR_AFTER(X, Y) \ 83#define ROWCOL_IN_ROW_AT_OR_AFTER(X, Y) \
84 ROW_AND_COL_IN_ROW_AT_OR_AFTER ((X).row, (X).col, (Y).row, (Y).col) 84 ROW_AND_COL_IN_ROW_AT_OR_AFTER ((X).row, (X).col, (Y).row, (Y).col)
85#define ROWCOL_IN_ROW_AT_OR_BEFORE(X, Y) \ 85#define ROWCOL_IN_ROW_AT_OR_BEFORE(X, Y) \
86 ROW_AND_COL_IN_ROW_AT_OR_BEFORE ((X).row, (X).col, (Y).row, (Y).col) 86 ROW_AND_COL_IN_ROW_AT_OR_BEFORE ((X).row, (X).col, (Y).row, (Y).col)
87 87
88#define LINENO(n) (((n) + term_start + total_rows) % total_rows)
89#define ROW(n) (save [LINENO (n)])
90
91/* 88/*
92 * CLEAR_ROWS : clear <num> rows starting from row <row> 89 * CLEAR_ROWS : clear <num> rows starting from row <row>
93 * CLEAR_CHARS: clear <num> chars starting from pixel position <x,y> 90 * CLEAR_CHARS: clear <num> chars starting from pixel position <x,y>
94 * ERASE_ROWS : set <num> rows starting from row <row> to the foreground colour 91 * ERASE_ROWS : set <num> rows starting from row <row> to the foreground colour
95 */ 92 */
… …
150} 147}
151 148
152/* ------------------------------------------------------------------------- * 149/* ------------------------------------------------------------------------- *
153 * SCREEN INITIALISATION * 150 * SCREEN INITIALISATION *
154 * ------------------------------------------------------------------------- */ 151 * ------------------------------------------------------------------------- */
152
155void 153void
156rxvt_term::scr_reset () 154rxvt_term::scr_reset ()
157{ 155{
158 unsigned int p, q;
159 int k;
160
161#if ENABLE_OVERLAY 156#if ENABLE_OVERLAY
162 scr_overlay_off (); 157 scr_overlay_off ();
163#endif 158#endif
164 159
165 view_start = 0; 160 view_start = 0;
… …
175 return; 170 return;
176 171
177 // we need at least two lines for wrapping to work correctly 172 // we need at least two lines for wrapping to work correctly
178 if (nrow + saveLines < 2) 173 if (nrow + saveLines < 2)
179 { 174 {
175 //TODO//FIXME
180 saveLines++; 176 saveLines++;
181 prev_nrow--; 177 prev_nrow--;
182 nsaved++; 178 nsaved++;
183 } 179 }
184 180
… …
188 total_rows = nrow + saveLines; 184 total_rows = nrow + saveLines;
189 185
190 screen.tscroll = 0; 186 screen.tscroll = 0;
191 screen.bscroll = nrow - 1; 187 screen.bscroll = nrow - 1;
192 188
193 if (!save) 189 if (!row_buf)
194 { 190 {
195 /* 191 /*
196 * first time called so just malloc everything: don't rely on realloc 192 * first time called so just malloc everything: don't rely on realloc
197 * Note: this is still needed so that all the scrollback lines are NULL 193 * Note: this is still needed so that all the scrollback lines are NULL
198 */ 194 */
… …
200 term_start = 0; 196 term_start = 0;
201 197
202 talloc = new rxvt_salloc (ncol * sizeof (text_t)); 198 talloc = new rxvt_salloc (ncol * sizeof (text_t));
203 ralloc = new rxvt_salloc (ncol * sizeof (rend_t)); 199 ralloc = new rxvt_salloc (ncol * sizeof (rend_t));
204 200
205 save = (line_t *)rxvt_calloc (total_rows, sizeof (line_t));
206 buf = (line_t *)rxvt_calloc (total_rows, sizeof (line_t)); 201 row_buf = (line_t *)rxvt_calloc (total_rows, sizeof (line_t));
202 temp_buf = (line_t *)rxvt_calloc (total_rows, sizeof (line_t));
207 drawn = (line_t *)rxvt_calloc (nrow, sizeof (line_t)); 203 drawn_buf = (line_t *)rxvt_calloc (nrow , sizeof (line_t));
208 swap_save = (line_t *)rxvt_calloc (nrow, sizeof (line_t)); 204 swap_buf = (line_t *)rxvt_calloc (nrow , sizeof (line_t));
209 205
210 for (p = nrow; p--; ) 206 for (int row = nrow; row--; )
211 { 207 {
212 scr_blank_screen_mem (ROW(p), DEFAULT_RSTYLE); 208 scr_blank_screen_mem (ROW (row), DEFAULT_RSTYLE);
213 scr_blank_screen_mem (swap_save[p], DEFAULT_RSTYLE); 209 scr_blank_screen_mem (swap_buf [row], DEFAULT_RSTYLE);
214 scr_blank_screen_mem (drawn[p], DEFAULT_RSTYLE); 210 scr_blank_screen_mem (drawn_buf[row], DEFAULT_RSTYLE);
215 } 211 }
216 212
217 memset (charsets, 'B', sizeof (charsets)); 213 memset (charsets, 'B', sizeof (charsets));
218 rstyle = DEFAULT_RSTYLE; 214 rstyle = DEFAULT_RSTYLE;
219 screen.flags = Screen_DefaultFlags; 215 screen.flags = Screen_DefaultFlags;
… …
243 { 239 {
244 /* 240 /*
245 * add or delete rows as appropriate 241 * add or delete rows as appropriate
246 */ 242 */
247 243
248 rxvt_salloc *old_ta; 244 rxvt_salloc *old_ta = talloc; talloc = new rxvt_salloc (ncol * sizeof (text_t));
249 rxvt_salloc *old_ra; 245 rxvt_salloc *old_ra = ralloc; ralloc = new rxvt_salloc (ncol * sizeof (rend_t));
250 246
247#if 0
251 if (nrow < prev_nrow) 248 if (nrow < prev_nrow)
252 { 249 {
253 /* delete rows */
254 k = min (nsaved, prev_nrow - nrow);
255 // k = max (0, - ( (nrow - 1) - r->screen.cur.row)); // mmc's http://maruska.dyndns.org/wiki/scrolling-bug //make configurable? //D TODO
256 scr_scroll_text (0, (int)prev_nrow - 1, k, 1);
257
258 for (p = nrow; p < prev_nrow; p++) 250 for (int row = nrow; row < prev_nrow; row++)
259 { 251 {
260 lfree (ROW(p));
261 lfree (swap_save[p]); 252 lfree (swap_buf [row]);
262 lfree (drawn[p]); 253 lfree (drawn_buf[row]);
263 } 254 }
255 }
256#endif
264 257
265 /* we have fewer rows so fix up cursor position */ 258 drawn_buf = (line_t *)rxvt_realloc (drawn_buf, nrow * sizeof (line_t));
266 MIN_IT (screen.cur.row, (int32_t)nrow - 1); 259 temp_buf = (line_t *)rxvt_realloc (temp_buf , nrow * sizeof (line_t));
260 swap_buf = (line_t *)rxvt_realloc (swap_buf , nrow * sizeof (line_t));
267 261
268 scr_reset_realloc (); /* realloc _last_ */ 262 for (int row = min (nrow, prev_nrow); row--; )
263 {
264 lresize (drawn_buf[row]);
265 lresize (swap_buf [row]);
266 }
267
268 for (int row = prev_nrow; row < nrow; row++)
269 {
270 swap_buf [row].clear (); scr_blank_screen_mem (swap_buf [row], DEFAULT_RSTYLE);
271 drawn_buf[row].clear (); scr_blank_screen_mem (drawn_buf[row], DEFAULT_RSTYLE);
272 }
273
274 line_t *old_buf = row_buf; row_buf = (line_t *)rxvt_calloc (total_rows, sizeof (line_t));
269 } 275
270 else if (nrow > prev_nrow) 276 int p = MOD (term_start + prev_nrow, prev_total_rows); // previous row
271 { 277 int pend = MOD (term_start - nsaved , prev_total_rows);
272 /* add rows */ 278 int q = total_rows; // rewrapped row
273 scr_reset_realloc (); /* realloc _first_ */
274 279
275 int ocol = ncol; 280 if (nsaved)
276 ncol = prev_ncol; // save b/c scr_blank_screen_mem uses this 281 {
282 // re-wrap lines, this is rather ugly, possibly because I am too dumb
283 // to come up with a lean and mean algorithm.
277 284
278 k = min (nsaved, nrow - prev_nrow); 285 while (p != pend && q > 0)
279
280 for (p = prev_total_rows; p < total_rows; p++)
281 save[p].clear ();
282
283 for (p = prev_total_rows; p < total_rows - k; p++)
284 scr_blank_screen_mem (save[p], DEFAULT_RSTYLE);
285
286 for (p = prev_nrow; p < nrow; p++)
287 { 286 {
288 swap_save[p].clear (); scr_blank_screen_mem (swap_save[p], DEFAULT_RSTYLE); 287 p = MOD (p - 1, prev_total_rows);
289 drawn[p].clear (); scr_blank_screen_mem (drawn[p], DEFAULT_RSTYLE);
290 }
291
292 if (k > 0)
293 {
294 scr_scroll_text (0, (int)nrow - 1, -k, 1);
295 screen.cur.row += k;
296 screen.s_cur.row += k;
297 nsaved -= k;
298 }
299
300#ifdef DEBUG_STRICT 288#ifdef DEBUG_STRICT
301 assert (screen.cur.row < nrow); 289 assert (old_buf [MOD (p, prev_total_rows)].t);
302#else /* drive with your eyes closed */
303 MIN_IT (screen.cur.row, nrow - 1);
304#endif 290#endif
305 ncol = ocol; // save b/c scr_blank_screen_mem uses this
306 }
307 291
308 /* resize columns */ 292 int llen = old_buf [MOD (p, prev_total_rows)].l;
309 if (ncol != prev_ncol)
310 {
311 old_ta = talloc; talloc = new rxvt_salloc (ncol * sizeof (text_t));
312 old_ra = ralloc; ralloc = new rxvt_salloc (ncol * sizeof (rend_t));
313 293
314 for (p = total_rows; p--; ) 294 while (p != pend && old_buf [MOD (p - 1, prev_total_rows)].is_longer ())
315 lresize (save[p]);
316
317 for (p = nrow; p--; )
318 {
319 lresize (drawn[p]);
320 lresize (swap_save[p]);
321 }
322
323 MIN_IT (screen.cur.col, (int16_t)ncol - 1);
324
325 delete old_ta;
326 delete old_ra;
327 }
328
329#if 0
330 // re-wrap lines, this is rather ugly, possibly because I am too dumb
331 // to come up with a lean and mean algorithm.
332 rxvt_salloc *ta = new rxvt_salloc (ncol * sizeof (text_t));
333 rxvt_salloc *ra = new rxvt_salloc (ncol * sizeof (rend_t));
334
335 text_t **tp = (text_t **)rxvt_calloc (total_rows, sizeof (text_t *));
336 rend_t **rp = (rend_t **)rxvt_calloc (total_rows, sizeof (rend_t *));
337 tlen_t *tl = (tlen_t *) rxvt_calloc (total_rows, sizeof (tlen_t));
338
339 for (p = 0; p < prev_total_rows; p++) printf ("P %p %d\n", save[p].t, save[p].l);//D
340
341 p = prev_total_rows;
342 q = total_rows;
343
344 while (p > 0 && q > 0)
345 {
346 --p;
347
348 printf ("pq %d:%d\n", p, q);
349 if (save[p].t)
350 {
351 int llen = save[p].l;
352
353 assert (llen >= 0);
354
355 while (p && save[p - 1].l < 0)
356 { 295 {
357 --p; 296 p = MOD (p - 1, prev_total_rows);
297
358 llen += prev_ncol; 298 llen += prev_ncol;
359 } 299 }
360 300
361 int qlines = llen / ncol + 1; 301 int qlines = max (0, (llen - 1) / ncol) + 1;
302
303 // drop partial lines completely
304 if (q < qlines)
305 break;
306
307 q -= qlines;
308
362 int lofs = 0; 309 int lofs = 0;
310 line_t *qline;
363 311
364 q -= qlines; 312 // re-assemble the full line by destination lines
365
366 int qrow = q;
367
368 printf ("QL %d llen %d\n", qlines, llen);//D
369 for (; qlines--; qrow++) 313 for (int qrow = q; qlines--; qrow++)
370 { 314 {
315 qline = row_buf + qrow;
316 lalloc (*qline);
317 qline->set_is_longer ();
318
371 if (qrow >= 0) 319 int qcol = 0;
320
321 // fill a single destination line
322 while (lofs < llen && qcol < ncol)
372 { 323 {
373 tp [qrow] = (text_t *)ta->alloc ();
374 rp [qrow] = (rend_t *)ra->alloc ();
375 tl [qrow] = LINE_CONT1;
376
377 int qcol = 0;
378
379 for (;;)
380 {
381 int prow = lofs / prev_ncol + p; 324 int prow = lofs / prev_ncol;
382 int pcol = lofs % prev_ncol; 325 int pcol = lofs % prev_ncol;
383 326
327 line_t &pline = old_buf [MOD (p + prow, prev_total_rows)];
328
384 int len = min (min (prev_ncol - pcol, ncol - qcol), llen - lofs); 329 int len = min (min (prev_ncol - pcol, ncol - qcol), llen - lofs);
385 330
386 printf ("q %d lofs %d>%d len %d pq %d:%d p %d:%d q :%d\n", q, llen, lofs, len, prev_ncol, ncol, prow, pcol, qcol);
387
388 if (len <= 0)
389 {
390 tl [qrow] = qcol;
391
392 TODO
393 scr_blank_line (tp [qrow] + qcol, rp [qrow] + qcol,
394 ncol - qcol, DEFAULT_RSTYLE);
395
396 break;
397 }
398
399 assert (lofs < 1000); 331 assert (len);
332 assert (pline.t);
400 333
401 memcpy (tp [qrow] + qcol, save[prow].t + pcol, len * sizeof (text_t)); 334 memcpy (qline->t + qcol, pline.t + pcol, len * sizeof (text_t));
402 memcpy (rp [qrow] + qcol, save[prow].r + pcol, len * sizeof (rend_t)); 335 memcpy (qline->r + qcol, pline.r + pcol, len * sizeof (rend_t));
403 336
404 lofs += len; 337 lofs += len;
405 qcol += len; 338 qcol += len;
406
407 if (qcol == ncol)
408 break;
409 }
410 } 339 }
411 else
412 lofs += ncol;
413 } 340 }
341
342 qline->l = llen < ncol ? llen : MOD (llen - 1, ncol) + 1;
343 scr_blank_line (*qline, qline->l, ncol - qline->l, DEFAULT_RSTYLE);
414 } 344 }
345
346 term_start = total_rows - nrow;
347 view_start = 0;
348 nsaved = term_start - q;
349
350 // make sure all terminal lines exist
351 while (nsaved < 0)
352 scr_blank_screen_mem (ROW (-++nsaved), DEFAULT_RSTYLE);
353
354 }
355 else
415 } 356 {
357 // if no scrollback exists (yet), wing, instead of wrap
358
359 for (int row = min (nrow, prev_nrow); row--; )
360 {
361 line_t &pline = old_buf [MOD (term_start + row, prev_total_rows)];
362 line_t &qline = row_buf [row];
416 363
417 free (screen.text); screen.text = tp; 364 qline = pline;
418 free (screen.rend); screen.rend = rp; 365 lresize (qline);
419 free (screen.tlen); screen.tlen = tl; 366 }
420 367
421 for (p = 0; p < total_rows; p++) printf ("P %p %d\n", save[p].t, save[p].l);//D 368 for (int row = prev_nrow; row < nrow; row++)
369 {
370 row_buf [row].clear (); scr_blank_screen_mem (row_buf [row], DEFAULT_RSTYLE);
371 }
372
373 term_start = 0;
374 view_start = 0;
375 }
376
377#ifdef DEBUG_STRICT
378 for (int i = -nsaved; i < nrow; i++)
379 assert (ROW (i).t);
422#endif 380#endif
381
382 free (old_buf);
383 delete old_ta;
384 delete old_ra;
385
386 clamp_it (screen.cur.row, 0, nrow - 1);
387 clamp_it (screen.cur.col, 0, ncol - 1);
423 388
424 if (tabs) 389 if (tabs)
425 free (tabs); 390 free (tabs);
426 } 391 }
427 392
428 prev_nrow = nrow; 393 prev_nrow = nrow;
429 prev_ncol = ncol; 394 prev_ncol = ncol;
430 395
431 tabs = (char *)rxvt_malloc (ncol * sizeof (char)); 396 tabs = (char *)rxvt_malloc (ncol * sizeof (char));
432 397
433 for (p = 0; p < ncol; p++) 398 for (int col = ncol; col--; )
434 tabs[p] = (p % TABSIZE == 0) ? 1 : 0; 399 tabs [col] = col % TABSIZE == 0;
435 400
436 tt_winch (); 401 tt_winch ();
437}
438
439void
440rxvt_term::scr_reset_realloc ()
441{
442 swap_save = (line_t *) rxvt_realloc (swap_save , nrow * sizeof (line_t));
443 drawn = (line_t *) rxvt_realloc (drawn , nrow * sizeof (line_t));
444 buf = (line_t *) rxvt_realloc (buf , nrow * sizeof (line_t));
445 save = (line_t *) rxvt_realloc (save , total_rows * sizeof (line_t));
446} 402}
447 403
448/* ------------------------------------------------------------------------- */ 404/* ------------------------------------------------------------------------- */
449/* 405/*
450 * Free everything. That way malloc debugging can find leakage. 406 * Free everything. That way malloc debugging can find leakage.
… …
453rxvt_term::scr_release () 409rxvt_term::scr_release ()
454{ 410{
455 delete talloc; talloc = 0; 411 delete talloc; talloc = 0;
456 delete ralloc; ralloc = 0; 412 delete ralloc; ralloc = 0;
457 413
458 free (save); 414 free (row_buf);
459 free (swap_save); 415 free (swap_buf);
460 free (drawn); 416 free (drawn_buf);
461 free (buf); 417 free (temp_buf);
462 free (tabs); 418 free (tabs);
419
420 row_buf = 0; // signal that we freed all the arrays
463} 421}
464 422
465/* ------------------------------------------------------------------------- */ 423/* ------------------------------------------------------------------------- */
466/* 424/*
467 * Hard reset 425 * Hard reset
… …
518 set_font_style (); 476 set_font_style ();
519 break; 477 break;
520 } 478 }
521 479
522 /* boundary check in case screen size changed between SAVE and RESTORE */ 480 /* boundary check in case screen size changed between SAVE and RESTORE */
523 MIN_IT (s->cur.row, nrow - 1); 481 min_it (s->cur.row, nrow - 1);
524 MIN_IT (s->cur.col, ncol - 1); 482 min_it (s->cur.col, ncol - 1);
525#ifdef DEBUG_STRICT 483#ifdef DEBUG_STRICT
526 assert (s->cur.row >= 0); 484 assert (s->cur.row >= 0);
527 assert (s->cur.col >= 0); 485 assert (s->cur.col >= 0);
528#else /* drive with your eyes closed */
529 MAX_IT (s->cur.row, 0);
530 MAX_IT (s->cur.col, 0);
531#endif 486#endif
532} 487}
533 488
534/* ------------------------------------------------------------------------- */ 489/* ------------------------------------------------------------------------- */
535/* 490/*
… …
538 * XTERM_SEQ: Secondary screen: ESC [ ? 4 7 l 493 * XTERM_SEQ: Secondary screen: ESC [ ? 4 7 l
539 */ 494 */
540int 495int
541rxvt_term::scr_change_screen (int scrn) 496rxvt_term::scr_change_screen (int scrn)
542{ 497{
543 int i;
544#if NSCREENS
545 int offset;
546#endif
547
548 want_refresh = 1; 498 want_refresh = 1;
549
550 view_start = 0; 499 view_start = 0;
551 500
552 if (current_screen == scrn) 501 if (current_screen == scrn)
553 return scrn; 502 return scrn;
554 503
555 selection_check (2); /* check for boundary cross */ 504 selection_check (2); /* check for boundary cross */
556 505
557 i = current_screen; current_screen = scrn; scrn = i; 506 int i = current_screen; current_screen = scrn; scrn = i;
558 507
559 SWAP_IT (screen.cur.row, swap.cur.row, int16_t); 508 ::swap (screen.cur.row, swap.cur.row);
560 SWAP_IT (screen.cur.col, swap.cur.col, int16_t); 509 ::swap (screen.cur.col, swap.cur.col);
561 MAX_IT (screen.cur.row, 0); 510
562 MIN_IT (screen.cur.row, (int32_t)prev_nrow - 1); 511 screen.cur.row = clamp (screen.cur.row, 0, prev_nrow - 1);
563 MAX_IT (screen.cur.col, 0); 512 screen.cur.col = clamp (screen.cur.col, 0, prev_ncol - 1);
564 MIN_IT (screen.cur.col, (int32_t)prev_ncol - 1);
565 513
566#if NSCREENS 514#if NSCREENS
567 if (options & Opt_secondaryScreen) 515 if (options & Opt_secondaryScreen)
568 { 516 {
569 num_scr = 0; 517 num_scr = 0;
570 offset = saveLines;
571 518
572 for (i = prev_nrow; i--;) 519 for (int i = prev_nrow; i--; )
573 SWAP_IT (ROW(i), swap_save[i], line_t); 520 ::swap (ROW(i), swap_buf [i]);
574 521
575 SWAP_IT (screen.charset, swap.charset, int16_t); 522 ::swap (screen.charset, swap.charset);
576 SWAP_IT (screen.flags, swap.flags, int); 523 ::swap (screen.flags, swap.flags);
577 screen.flags |= Screen_VisibleCursor; 524 screen.flags |= Screen_VisibleCursor;
578 swap.flags |= Screen_VisibleCursor; 525 swap.flags |= Screen_VisibleCursor;
579 } 526 }
580 else 527 else
581#endif 528#endif
582 if (options & Opt_secondaryScroll) 529 if (options & Opt_secondaryScroll)
583 scr_scroll_text (0, prev_nrow - 1, prev_nrow, 0); 530 scr_scroll_text (0, prev_nrow - 1, prev_nrow);
584 531
585 return scrn; 532 return scrn;
586} 533}
587 534
588// clear WrapNext indicator, solidifying position on next line 535// clear WrapNext indicator, solidifying position on next line
… …
595 screen.flags &= ~Screen_WrapNext; 542 screen.flags &= ~Screen_WrapNext;
596 543
597 screen.cur.col = 0; 544 screen.cur.col = 0;
598 545
599 if (screen.cur.row == screen.bscroll) 546 if (screen.cur.row == screen.bscroll)
600 scr_scroll_text (screen.tscroll, screen.bscroll, 1, 0); 547 scr_scroll_text (screen.tscroll, screen.bscroll, 1);
601 else if (screen.cur.row < nrow - 1) 548 else if (screen.cur.row < nrow - 1)
602 screen.cur.row++; 549 screen.cur.row++;
603} 550}
604 551
605/* ------------------------------------------------------------------------- */ 552/* ------------------------------------------------------------------------- */
… …
636/* ------------------------------------------------------------------------- */ 583/* ------------------------------------------------------------------------- */
637/* 584/*
638 * Scroll text between <row1> and <row2> inclusive, by <count> lines 585 * Scroll text between <row1> and <row2> inclusive, by <count> lines
639 * count positive ==> scroll up 586 * count positive ==> scroll up
640 * count negative ==> scroll down 587 * count negative ==> scroll down
641 * spec == 0 for normal routines
642 */ 588 */
643int 589int
644rxvt_term::scr_scroll_text (int row1, int row2, int count, int spec) 590rxvt_term::scr_scroll_text (int row1, int row2, int count)
645{ 591{
646 int i, j;
647
648 if (count == 0 || (row1 > row2)) 592 if (count == 0 || (row1 > row2))
649 return 0; 593 return 0;
650 594
651 want_refresh = 1; 595 want_refresh = 1;
596 num_scr += count;
652 597
653 if (row1 == 0 && count > 0 598 if (count > 0
599 && row1 == 0
600 && row2 == nrow - 1
654 && (current_screen == PRIMARY || options & Opt_secondaryScroll)) 601 && (current_screen == PRIMARY || options & Opt_secondaryScroll))
655 { 602 {
656 nsaved = min (nsaved + count, saveLines); 603 nsaved = min (nsaved + count, saveLines);
657 term_start = (term_start + count) % total_rows; 604 term_start = (term_start + count) % total_rows;
658 605
659 if (selection.op && current_screen == selection.screen) 606 if (selection.op && current_screen == selection.screen)
660 { 607 {
661 selection.beg.row -= count; 608 selection.beg.row -= count;
662 selection.end.row -= count; 609 selection.end.row -= count;
663 selection.mark.row -= count; 610 selection.mark.row -= count;
611
612 selection_check (0);
664 } 613 }
665 614
666 for (int i = count; i--; ) 615 for (int i = count; i--; )
667 scr_blank_screen_mem (ROW(row2 - i), rstyle); 616 scr_blank_screen_mem (ROW(row2 - i), rstyle);
668 617
… …
671 && view_start != saveLines) 620 && view_start != saveLines)
672 scr_page (UP, count); 621 scr_page (UP, count);
673 } 622 }
674 else 623 else
675 { 624 {
676 if (!spec)
677 row1 += saveLines;
678
679 row2 += saveLines;
680
681 if (selection.op && current_screen == selection.screen) 625 if (selection.op && current_screen == selection.screen)
682 { 626 {
683 i = selection.beg.row + saveLines; 627 int i = selection.beg.row;
684 j = selection.end.row + saveLines; 628 int j = selection.end.row;
685 629
686 if ((i < row1 && j > row1) 630 if ((i < row1 && j > row1)
687 || (i < row2 && j > row2) 631 || (i < row2 && j > row2)
688 || (i - count < row1 && i >= row1) 632 || (i - count < row1 && i >= row1)
689 || (i - count > row2 && i <= row2) 633 || (i - count > row2 && i <= row2)
… …
697 { 641 {
698 /* move selected region too */ 642 /* move selected region too */
699 selection.beg.row -= count; 643 selection.beg.row -= count;
700 selection.end.row -= count; 644 selection.end.row -= count;
701 selection.mark.row -= count; 645 selection.mark.row -= count;
646
647 selection_check (0);
702 } 648 }
703 } 649 }
704 650
705 selection_check (0); /* _after_ nsaved update */ 651 // use a simple and robust scrolling algorithm, this
652 // part of scr_scroll_text is not time-critical.
706 653
707 num_scr += count;
708 j = count;
709
710 if (count < 0)
711 count = -count;
712
713 i = row2 - row1 + 1; 654 int rows = row2 - row1 + 1;
714 MIN_IT (count, i);
715 655
716 if (j > 0) 656 min_it (count, rows);
717 {
718 /* scroll up */
719 657
720 /* Copy lines that will get clobbered by the rotation */ 658 for (int row = 0; row < rows; row++)
721 memcpy (buf, save + row1, count * sizeof (line_t));
722
723 /* Rotate lines */
724 i = row2 - row1 - count + 1;
725 memmove (save + row1, save + row1 + count, i * sizeof (line_t));
726
727 j = row2 - count + 1, i = count;
728 } 659 {
729 else /* if (j < 0) */ 660 temp_buf [row] = ROW(row1 + (row + count + rows) % rows);
661
662 if (!IN_RANGE_EXC (row + count, 0, rows))
663 scr_blank_screen_mem (temp_buf [row], rstyle);
730 { 664 }
731 /* scroll down */
732 665
733 /* Copy lines that will get clobbered by the rotation */ 666 for (int row = 0; row < rows; row++)
734 for (i = 0, j = row2; i < count; i++, j--) 667 ROW(row1 + row) = temp_buf [row];
735 buf[i] = save[j];
736
737 /* Rotate lines */
738 for (j = row2, i = j - count; i >= row1; i--, j--)
739 save[j] = save[i];
740
741 j = row1, i = count;
742 count = -count;
743 }
744
745 /* Resurrect lines */
746 memcpy (save + j, buf, i * sizeof (line_t));
747
748 if (!spec) /* line length may not equal ncol */
749 for (; i--; j++)
750 scr_blank_screen_mem (save[j], rstyle);
751 } 668 }
752 669
753 return count; 670 return count;
754} 671}
755 672
… …
773 last_col = ncol; 690 last_col = ncol;
774 691
775 if (nlines > 0) 692 if (nlines > 0)
776 { 693 {
777 nlines += screen.cur.row - screen.bscroll; 694 nlines += screen.cur.row - screen.bscroll;
778 if ((nlines > 0) 695 if (nlines > 0
779 && (screen.tscroll == 0) 696 && screen.tscroll == 0
780 && (screen.bscroll == (nrow - 1))) 697 && screen.bscroll == (nrow - 1))
781 { 698 {
782 /* _at least_ this many lines need to be scrolled */ 699 /* _at least_ this many lines need to be scrolled */
783 scr_scroll_text (screen.tscroll, screen.bscroll, nlines, 0); 700 scr_scroll_text (screen.tscroll, screen.bscroll, nlines);
784 screen.cur.row -= nlines; 701 screen.cur.row -= nlines;
785 } 702 }
786 } 703 }
787 704
788#ifdef DEBUG_STRICT 705#ifdef DEBUG_STRICT
789 assert (screen.cur.col < last_col); 706 assert (screen.cur.col < last_col);
790 assert ((screen.cur.row < nrow) 707 assert (screen.cur.row < nrow
791 && (screen.cur.row >= - (int32_t)nsaved)); 708 && screen.cur.row >= -nsaved);
792#else /* drive with your eyes closed */
793 MIN_IT (screen.cur.col, last_col - 1);
794 MIN_IT (screen.cur.row, (int32_t)nrow - 1);
795 MAX_IT (screen.cur.row, - (int32_t)nsaved);
796#endif 709#endif
797 row = screen.cur.row; 710 row = screen.cur.row;
798 711
799 checksel = selection.op && current_screen == selection.screen ? 1 : 0; 712 checksel = selection.op && current_screen == selection.screen ? 1 : 0;
800 713
… …
806 719
807 if (c < 0x20) 720 if (c < 0x20)
808 if (c == C0_LF) 721 if (c == C0_LF)
809 { 722 {
810 if (!line->is_longer ()) /* XXX: think about this */ 723 if (!line->is_longer ()) /* XXX: think about this */
811 MAX_IT (line->l, screen.cur.col); 724 max_it (line->l, screen.cur.col);
812 725
813 screen.flags &= ~Screen_WrapNext; 726 screen.flags &= ~Screen_WrapNext;
814 727
815 if (screen.cur.row == screen.bscroll) 728 if (screen.cur.row == screen.bscroll)
816 scr_scroll_text (screen.tscroll, screen.bscroll, 1, 0); 729 scr_scroll_text (screen.tscroll, screen.bscroll, 1);
817 else if (screen.cur.row < (nrow - 1)) 730 else if (screen.cur.row < (nrow - 1))
818 row = ++screen.cur.row; 731 row = ++screen.cur.row;
819 732
820 line = &ROW(row); /* _must_ refresh */ 733 line = &ROW(row); /* _must_ refresh */
821 continue; 734 continue;
822 } 735 }
823 else if (c == C0_CR) 736 else if (c == C0_CR)
824 { 737 {
825 if (!line->is_longer ()) /* XXX: think about this */ 738 if (!line->is_longer ()) /* XXX: think about this */
826 MAX_IT (line->l, screen.cur.col); 739 max_it (line->l, screen.cur.col);
827 740
828 screen.flags &= ~Screen_WrapNext; 741 screen.flags &= ~Screen_WrapNext;
829 screen.cur.col = 0; 742 screen.cur.col = 0;
830 continue; 743 continue;
831 } 744 }
… …
1007#endif 920#endif
1008 } 921 }
1009 } 922 }
1010 923
1011 if (!line->is_longer ()) /* XXX: think about this */ 924 if (!line->is_longer ()) /* XXX: think about this */
1012 MAX_IT (line->l, screen.cur.col); 925 max_it (line->l, screen.cur.col);
1013 926
1014#ifdef DEBUG_STRICT 927#ifdef DEBUG_STRICT
1015 assert (screen.cur.row >= 0); 928 assert (screen.cur.row >= 0);
1016#else /* drive with your eyes closed */
1017 MAX_IT (screen.cur.row, 0);
1018#endif 929#endif
1019} 930}
1020 931
1021/* ------------------------------------------------------------------------- */ 932/* ------------------------------------------------------------------------- */
1022/* 933/*
… …
1088 if (ht && options & Opt_pastableTabs) 999 if (ht && options & Opt_pastableTabs)
1089 { 1000 {
1090 base_rend = SET_FONT (base_rend, 0); 1001 base_rend = SET_FONT (base_rend, 0);
1091 1002
1092 if (!l.is_longer ()) /* XXX: think about this */ 1003 if (!l.is_longer ()) /* XXX: think about this */
1093 MAX_IT (l.l, x); 1004 max_it (l.l, x);
1094 1005
1095 i = screen.cur.col; 1006 i = screen.cur.col;
1096 1007
1097 l.t[i] = '\t'; 1008 l.t[i] = '\t';
1098 l.r[i] = base_rend; 1009 l.r[i] = base_rend;
… …
1177{ 1088{
1178 want_refresh = 1; 1089 want_refresh = 1;
1179 ZERO_SCROLLBACK (); 1090 ZERO_SCROLLBACK ();
1180 1091
1181 screen.cur.col = relative & C_RELATIVE ? screen.cur.col + col : col; 1092 screen.cur.col = relative & C_RELATIVE ? screen.cur.col + col : col;
1182 MAX_IT (screen.cur.col, 0); 1093 clamp_it (screen.cur.col, 0, ncol - 1);
1183 MIN_IT (screen.cur.col, (int32_t)ncol - 1);
1184 1094
1185 screen.flags &= ~Screen_WrapNext; 1095 screen.flags &= ~Screen_WrapNext;
1186 1096
1187 if (relative & R_RELATIVE) 1097 if (relative & R_RELATIVE)
1188 { 1098 {
… …
1206 else 1116 else
1207 { 1117 {
1208 if (screen.flags & Screen_Relative) 1118 if (screen.flags & Screen_Relative)
1209 { /* relative origin mode */ 1119 { /* relative origin mode */
1210 screen.cur.row = row + screen.tscroll; 1120 screen.cur.row = row + screen.tscroll;
1211 MIN_IT (screen.cur.row, screen.bscroll); 1121 min_it (screen.cur.row, screen.bscroll);
1212 } 1122 }
1213 else 1123 else
1214 screen.cur.row = row; 1124 screen.cur.row = row;
1215 } 1125 }
1216 1126
1217 MAX_IT (screen.cur.row, 0); 1127 clamp_it (screen.cur.row, 0, nrow - 1);
1218 MIN_IT (screen.cur.row, (int32_t)nrow - 1);
1219} 1128}
1220 1129
1221/* ------------------------------------------------------------------------- */ 1130/* ------------------------------------------------------------------------- */
1222/* 1131/*
1223 * direction should be UP or DN 1132 * direction should be UP or DN
… …
1234 1143
1235 screen.flags &= ~Screen_WrapNext; 1144 screen.flags &= ~Screen_WrapNext;
1236 1145
1237 if ((screen.cur.row == screen.bscroll && direction == UP) 1146 if ((screen.cur.row == screen.bscroll && direction == UP)
1238 || (screen.cur.row == screen.tscroll && direction == DN)) 1147 || (screen.cur.row == screen.tscroll && direction == DN))
1239 scr_scroll_text (screen.tscroll, screen.bscroll, dirn, 0); 1148 scr_scroll_text (screen.tscroll, screen.bscroll, dirn);
1240 else 1149 else
1241 screen.cur.row += dirn; 1150 screen.cur.row += dirn;
1242 1151
1243 MAX_IT (screen.cur.row, 0); 1152 clamp_it (screen.cur.row, 0, nrow - 1);
1244 MIN_IT (screen.cur.row, (int32_t)nrow - 1);
1245 selection_check (0); 1153 selection_check (0);
1246} 1154}
1247 1155
1248/* ------------------------------------------------------------------------- */ 1156/* ------------------------------------------------------------------------- */
1249/* 1157/*
… …
1267 switch (mode) 1175 switch (mode)
1268 { 1176 {
1269 case 0: /* erase to end of line */ 1177 case 0: /* erase to end of line */
1270 col = screen.cur.col; 1178 col = screen.cur.col;
1271 num = ncol - col; 1179 num = ncol - col;
1272 MIN_IT (ROW(row).l, (int16_t)col); 1180 min_it (ROW(row).l, col);
1273 if (ROWCOL_IN_ROW_AT_OR_AFTER (selection.beg, screen.cur) 1181 if (ROWCOL_IN_ROW_AT_OR_AFTER (selection.beg, screen.cur)
1274 || ROWCOL_IN_ROW_AT_OR_AFTER (selection.end, screen.cur)) 1182 || ROWCOL_IN_ROW_AT_OR_AFTER (selection.end, screen.cur))
1275 CLEAR_SELECTION (); 1183 CLEAR_SELECTION ();
1276 break; 1184 break;
1277 case 1: /* erase to beginning of line */ 1185 case 1: /* erase to beginning of line */
… …
1305 */ 1213 */
1306void 1214void
1307rxvt_term::scr_erase_screen (int mode) 1215rxvt_term::scr_erase_screen (int mode)
1308{ 1216{
1309 int num; 1217 int num;
1310 int32_t row, row_offset; 1218 int32_t row;
1311 rend_t ren; 1219 rend_t ren;
1312 XGCValues gcvalue; 1220 XGCValues gcvalue;
1313 1221
1314 want_refresh = 1; 1222 want_refresh = 1;
1315 ZERO_SCROLLBACK (); 1223 ZERO_SCROLLBACK ();
1316
1317 row_offset = (int32_t)saveLines;
1318 1224
1319 switch (mode) 1225 switch (mode)
1320 { 1226 {
1321 case 0: /* erase to end of screen */ 1227 case 0: /* erase to end of screen */
1322 selection_check (1); 1228 selection_check (1);
… …
1346 CLEAR_SELECTION (); 1252 CLEAR_SELECTION ();
1347 1253
1348 if (row >= nrow) /* Out Of Bounds */ 1254 if (row >= nrow) /* Out Of Bounds */
1349 return; 1255 return;
1350 1256
1351 MIN_IT (num, (nrow - row)); 1257 min_it (num, nrow - row);
1352 1258
1353 if (rstyle & (RS_RVid | RS_Uline)) 1259 if (rstyle & (RS_RVid | RS_Uline))
1354 ren = (rend_t) ~RS_None; 1260 ren = (rend_t) ~RS_None;
1355 else if (GET_BASEBG (rstyle) == Color_bg) 1261 else if (GET_BASEBG (rstyle) == Color_bg)
1356 { 1262 {
… …
1367 XChangeGC (display->display, gc, GCForeground, &gcvalue); 1273 XChangeGC (display->display, gc, GCForeground, &gcvalue);
1368 } 1274 }
1369 1275
1370 for (; num--; row++) 1276 for (; num--; row++)
1371 { 1277 {
1372 scr_blank_screen_mem (save[row + row_offset], rstyle); 1278 scr_blank_screen_mem (ROW (row), rstyle);
1373 save[row + row_offset].l = 0; 1279 ROW (row).l = 0;
1374 scr_blank_line (drawn[row], 0, ncol, ren); 1280 scr_blank_line (drawn_buf [row], 0, ncol, ren);
1375 } 1281 }
1376} 1282}
1377 1283
1378#if ENABLE_FRILLS 1284#if ENABLE_FRILLS
1379void 1285void
… …
1392 * XTERM_SEQ: Screen Alignment Test: ESC # 8 1298 * XTERM_SEQ: Screen Alignment Test: ESC # 8
1393 */ 1299 */
1394void 1300void
1395rxvt_term::scr_E () 1301rxvt_term::scr_E ()
1396{ 1302{
1397 int i, j, k;
1398 rend_t *r1, fs; 1303 rend_t fs;
1399 1304
1400 want_refresh = 1; 1305 want_refresh = 1;
1401 ZERO_SCROLLBACK (); 1306 ZERO_SCROLLBACK ();
1402 1307
1403 num_scr_allow = 0; 1308 num_scr_allow = 0;
1404 selection_check (3); 1309 selection_check (3);
1405 1310
1406 fs = SET_FONT (rstyle, FONTSET (rstyle)->find_font ('E')); 1311 fs = SET_FONT (rstyle, FONTSET (rstyle)->find_font ('E'));
1407 for (k = saveLines, i = nrow; i--; k++) 1312 for (int row = nrow; row--; )
1408 { 1313 {
1409 line_t &line = save[k]; 1314 line_t &line = ROW(row);
1410 1315
1411 fill_text (line.t, 'E', ncol); 1316 fill_text (line.t, 'E', ncol);
1317 rend_t *r1 = line.r;
1412 1318
1413 for (r1 = line.r, j = ncol; j--; ) 1319 for (int j = ncol; j--; )
1414 *r1++ = fs; 1320 *r1++ = fs;
1415 1321
1416 line.l = ncol; /* make the `E's selectable */ 1322 line.l = ncol; /* make the `E's selectable */
1417 } 1323 }
1418} 1324}
… …
1442 count = end; 1348 count = end;
1443 } 1349 }
1444 1350
1445 scr_do_wrap (); 1351 scr_do_wrap ();
1446 1352
1447 scr_scroll_text (screen.cur.row, screen.bscroll, insdel * count, 0); 1353 scr_scroll_text (screen.cur.row, screen.bscroll, insdel * count);
1448} 1354}
1449 1355
1450/* ------------------------------------------------------------------------- */ 1356/* ------------------------------------------------------------------------- */
1451/* 1357/*
1452 * Insert/Delete <count> characters from the current position 1358 * Insert/Delete <count> characters from the current position
… …
1464 return; 1370 return;
1465 1371
1466 scr_do_wrap (); 1372 scr_do_wrap ();
1467 1373
1468 selection_check (1); 1374 selection_check (1);
1469 MIN_IT (count, (ncol - screen.cur.col)); 1375 min_it (count, ncol - screen.cur.col);
1470 1376
1471 row = screen.cur.row + saveLines; 1377 row = screen.cur.row;
1472 1378
1473 line_t *line = save + row; 1379 line_t *line = &ROW(row);
1474 1380
1475 switch (insdel) 1381 switch (insdel)
1476 { 1382 {
1477 case INSERT: 1383 case INSERT:
1478 for (col = ncol - 1; (col - count) >= screen.cur.col; col--) 1384 for (col = ncol - 1; (col - count) >= screen.cur.col; col--)
… …
1482 } 1388 }
1483 1389
1484 if (!line->is_longer ()) 1390 if (!line->is_longer ())
1485 { 1391 {
1486 line->l += count; 1392 line->l += count;
1487 MIN_IT (line->l, ncol); 1393 min_it (line->l, ncol);
1488 } 1394 }
1489 1395
1490 if (selection.op && current_screen == selection.screen 1396 if (selection.op && current_screen == selection.screen
1491 && ROWCOL_IN_ROW_AT_OR_AFTER (selection.beg, screen.cur)) 1397 && ROWCOL_IN_ROW_AT_OR_AFTER (selection.beg, screen.cur))
1492 { 1398 {
… …
1499 selection.mark.col += count; /* XXX: yes? */ 1405 selection.mark.col += count; /* XXX: yes? */
1500 selection.end.col += count; 1406 selection.end.col += count;
1501 } 1407 }
1502 } 1408 }
1503 1409
1504 scr_blank_line (save[row], screen.cur.col, count, rstyle); 1410 scr_blank_line (*line, screen.cur.col, count, rstyle);
1505 break; 1411 break;
1506 1412
1507 case ERASE: 1413 case ERASE:
1508 screen.cur.col += count; /* don't worry if > ncol */ 1414 screen.cur.col += count; /* don't worry if > ncol */
1509 selection_check (1); 1415 selection_check (1);
1510 screen.cur.col -= count; 1416 screen.cur.col -= count;
1511 scr_blank_line (save[row], screen.cur.col, count, rstyle); 1417 scr_blank_line (*line, screen.cur.col, count, rstyle);
1512 break; 1418 break;
1513 1419
1514 case DELETE: 1420 case DELETE:
1515 tr = line->r[ncol - 1] & (RS_fgMask | RS_bgMask | RS_baseattrMask); 1421 tr = line->r[ncol - 1] & (RS_fgMask | RS_bgMask | RS_baseattrMask);
1516 1422
… …
1523 scr_blank_line (*line, ncol - count, count, tr); 1429 scr_blank_line (*line, ncol - count, count, tr);
1524 1430
1525 if (line->is_longer ()) /* break line continuation */ 1431 if (line->is_longer ()) /* break line continuation */
1526 line->l = ncol; 1432 line->l = ncol;
1527 1433
1528 line->l -= count; 1434 line->l = max (line->l - count, 0);
1529 MAX_IT (line->l, 0);
1530 1435
1531 if (selection.op && current_screen == selection.screen 1436 if (selection.op && current_screen == selection.screen
1532 && ROWCOL_IN_ROW_AT_OR_AFTER (selection.beg, screen.cur)) 1437 && ROWCOL_IN_ROW_AT_OR_AFTER (selection.beg, screen.cur))
1533 { 1438 {
1534 if (selection.end.row != screen.cur.row 1439 if (selection.end.row != screen.cur.row
… …
1554 * XTERM_SEQ: Set region <top> - <bot> inclusive: ESC [ <top> ; <bot> r 1459 * XTERM_SEQ: Set region <top> - <bot> inclusive: ESC [ <top> ; <bot> r
1555 */ 1460 */
1556void 1461void
1557rxvt_term::scr_scroll_region (int top, int bot) 1462rxvt_term::scr_scroll_region (int top, int bot)
1558{ 1463{
1559 MAX_IT (top, 0); 1464 max_it (top, 0);
1560 MIN_IT (bot, (int)nrow - 1); 1465 min_it (bot, nrow - 1);
1561 1466
1562 if (top > bot) 1467 if (top > bot)
1563 return; 1468 return;
1564 1469
1565 screen.tscroll = top; 1470 screen.tscroll = top;
… …
1663 XGCValues gcvalue; 1568 XGCValues gcvalue;
1664 1569
1665 if (rvideo != mode) 1570 if (rvideo != mode)
1666 { 1571 {
1667 rvideo = mode; 1572 rvideo = mode;
1668 SWAP_IT (pix_colors[Color_fg], pix_colors[Color_bg], rxvt_color); 1573 ::swap (pix_colors[Color_fg], pix_colors[Color_bg]);
1669#if XPM_BACKGROUND 1574#if XPM_BACKGROUND
1670 if (bgPixmap.pixmap == None) 1575 if (bgPixmap.pixmap == None)
1671#endif 1576#endif
1672#if TRANSPARENT 1577#if TRANSPARENT
1673 if (! (options & Opt_transparent) || am_transparent == 0) 1578 if (! (options & Opt_transparent) || am_transparent == 0)
… …
1769 bool found = false; 1674 bool found = false;
1770 1675
1771 for (int i = 0; i < nrow; i++) 1676 for (int i = 0; i < nrow; i++)
1772 { 1677 {
1773 int col = 0; 1678 int col = 0;
1774 rend_t *drp = drawn[i].r; 1679 rend_t *drp = drawn_buf[i].r;
1775 1680
1776 for (; col < ncol; col++, drp++) 1681 for (; col < ncol; col++, drp++)
1777 if ((*drp & mask) == value) 1682 if ((*drp & mask) == value)
1778 { 1683 {
1779 found = true; 1684 found = true;
… …
1797rxvt_term::scr_expose (int x, int y, int ewidth, int eheight, bool refresh) 1702rxvt_term::scr_expose (int x, int y, int ewidth, int eheight, bool refresh)
1798{ 1703{
1799 int i; 1704 int i;
1800 row_col_t rc[RC_COUNT]; 1705 row_col_t rc[RC_COUNT];
1801 1706
1802 if (!drawn) /* sanity check */ 1707 if (!drawn_buf) /* sanity check */
1803 return; 1708 return;
1804 1709
1805#ifndef NO_SLOW_LINK_SUPPORT 1710#ifndef NO_SLOW_LINK_SUPPORT
1806 if (refresh_type == FAST_REFRESH && !display->is_local) 1711 if (refresh_type == FAST_REFRESH && !display->is_local)
1807 { 1712 {
1808 y = 0; 1713 y = 0;
1809 eheight = height; 1714 eheight = height;
1810 } 1715 }
1811#endif
1812
1813#ifdef DEBUG_STRICT
1814 x = max (x, 0);
1815 x = min (x, (int)width);
1816 y = max (y, 0);
1817 y = min (y, (int)height);
1818#endif 1716#endif
1819 1717
1820 /* round down */ 1718 /* round down */
1821 rc[PART_BEG].col = Pixel2Col (x); 1719 rc[PART_BEG].col = Pixel2Col (x);
1822 rc[PART_BEG].row = Pixel2Row (y); 1720 rc[PART_BEG].row = Pixel2Row (y);
… …
1825 rc[PART_END].row = Pixel2Row (y + eheight + fheight - 1); 1723 rc[PART_END].row = Pixel2Row (y + eheight + fheight - 1);
1826 1724
1827 /* sanity checks */ 1725 /* sanity checks */
1828 for (i = PART_BEG; i < RC_COUNT; i++) 1726 for (i = PART_BEG; i < RC_COUNT; i++)
1829 { 1727 {
1830 MIN_IT (rc[i].col, ncol - 1); 1728 min_it (rc[i].col, ncol - 1);
1831 MIN_IT (rc[i].row, nrow - 1); 1729 min_it (rc[i].row, nrow - 1);
1832 } 1730 }
1833 1731
1834 for (i = rc[PART_BEG].row; i <= rc[PART_END].row; i++) 1732 for (i = rc[PART_BEG].row; i <= rc[PART_END].row; i++)
1835 fill_text (&drawn[i].t[rc[PART_BEG].col], 0, rc[PART_END].col - rc[PART_BEG].col + 1); 1733 fill_text (&drawn_buf[i].t[rc[PART_BEG].col], 0, rc[PART_END].col - rc[PART_BEG].col + 1);
1836 1734
1837 if (refresh) 1735 if (refresh)
1838 scr_refresh (SLOW_REFRESH); 1736 scr_refresh (SLOW_REFRESH);
1839} 1737}
1840 1738
… …
1941/* ARGSUSED */ 1839/* ARGSUSED */
1942void 1840void
1943rxvt_term::scr_printscreen (int fullhist) 1841rxvt_term::scr_printscreen (int fullhist)
1944{ 1842{
1945#ifdef PRINTPIPE 1843#ifdef PRINTPIPE
1946 int i, r1, nrows, row_offset; 1844 int nrows, row_start;
1947 FILE *fd; 1845 FILE *fd;
1948 1846
1949 if ((fd = popen_printer ()) == NULL) 1847 if ((fd = popen_printer ()) == NULL)
1950 return; 1848 return;
1951 1849
1952 nrows = nrow;
1953 row_offset = saveLines;
1954
1955 if (!fullhist) 1850 if (fullhist)
1956 row_offset -= view_start; 1851 {
1852 nrows = nrow + nsaved;
1853 row_start = -nsaved;
1854 }
1957 else 1855 else
1958 { 1856 {
1959 nrows += nsaved; 1857 nrows = nrow;
1960 row_offset -= nsaved; 1858 row_start = -view_start;
1961 } 1859 }
1962 1860
1963 wctomb (0, 0); 1861 wctomb (0, 0);
1964 1862
1965 for (r1 = 0; r1 < nrows; r1++) 1863 for (int r1 = 0; r1 < nrows; r1++)
1966 { 1864 {
1967 text_t *tp = save[r1 + row_offset].t; 1865 text_t *tp = ROW(r1).t;
1968 int len = save[r1 + row_offset].l; 1866 int len = ROW(r1).l;
1969 1867
1970 for (i = len >= 0 ? len : ncol - 1; i--; ) //TODO//FIXME//LEN 1868 for (int i = len >= 0 ? len : ncol - 1; i--; ) //TODO//FIXME//LEN
1971 { 1869 {
1972 char mb[MB_LEN_MAX]; 1870 char mb[MB_LEN_MAX];
1973 text_t t = *tp++; 1871 text_t t = *tp++;
1974 if (t == NOCHAR) 1872 if (t == NOCHAR)
1975 continue; 1873 continue;
… …
2003{ 1901{
2004 unsigned char must_clear, /* use draw_string not draw_image_string */ 1902 unsigned char must_clear, /* use draw_string not draw_image_string */
2005 showcursor; /* show the cursor */ 1903 showcursor; /* show the cursor */
2006 int16_t col, row, /* column/row we're processing */ 1904 int16_t col, row, /* column/row we're processing */
2007 ocrow; /* old cursor row */ 1905 ocrow; /* old cursor row */
2008 int i, /* tmp */ 1906 int i; /* tmp */
2009 row_offset; /* basic offset in screen structure */
2010#ifndef NO_CURSORCOLOR 1907#ifndef NO_CURSORCOLOR
2011 rend_t cc1; /* store colours at cursor position (s) */ 1908 rend_t cc1; /* store colours at cursor position (s) */
2012#endif 1909#endif
2013 rend_t *crp; // cursor rendition pointer 1910 rend_t *crp; // cursor rendition pointer
2014 1911
… …
2020 /* 1917 /*
2021 * A: set up vars 1918 * A: set up vars
2022 */ 1919 */
2023 must_clear = 0; 1920 must_clear = 0;
2024 refresh_count = 0; 1921 refresh_count = 0;
2025
2026 row_offset = term_start - view_start;
2027 1922
2028#if XPM_BACKGROUND 1923#if XPM_BACKGROUND
2029 must_clear |= bgPixmap.pixmap != None; 1924 must_clear |= bgPixmap.pixmap != None;
2030#endif 1925#endif
2031#if TRANSPARENT 1926#if TRANSPARENT
… …
2101 if (screen.cur.row + view_start != ocrow 1996 if (screen.cur.row + view_start != ocrow
2102 || screen.cur.col != oldcursor.col) 1997 || screen.cur.col != oldcursor.col)
2103 { 1998 {
2104 if (ocrow < nrow 1999 if (ocrow < nrow
2105 && oldcursor.col < ncol) 2000 && oldcursor.col < ncol)
2106 drawn[ocrow].r[oldcursor.col] ^= (RS_RVid | RS_Uline); 2001 drawn_buf[ocrow].r[oldcursor.col] ^= (RS_RVid | RS_Uline);
2107 2002
2108 if (focus || !showcursor) 2003 if (focus || !showcursor)
2109 oldcursor.row = -1; 2004 oldcursor.row = -1;
2110 else 2005 else
2111 setoldcursor = 1; 2006 setoldcursor = 1;
… …
2135 * D: CopyArea pass - very useful for slower links 2030 * D: CopyArea pass - very useful for slower links
2136 * This has been deliberately kept simple. 2031 * This has been deliberately kept simple.
2137 */ 2032 */
2138 i = num_scr; 2033 i = num_scr;
2139 if (!display->is_local 2034 if (!display->is_local
2140 && refresh_type == FAST_REFRESH && num_scr_allow && i 2035 && refresh_type == FAST_REFRESH && num_scr_allow && num_scr
2141 && abs (i) < nrow && !must_clear) 2036 && abs (num_scr) < nrow && !must_clear)
2142 { 2037 {
2143 int16_t nits; 2038 int16_t nits;
2144 int j; 2039 int j;
2145 int len, wlen; 2040 int len, wlen;
2146 2041
… …
2149 row = i > 0 ? 0 : j - 1; 2044 row = i > 0 ? 0 : j - 1;
2150 for (; j-- >= 0; row += (i > 0 ? 1 : -1)) 2045 for (; j-- >= 0; row += (i > 0 ? 1 : -1))
2151 { 2046 {
2152 if (row + i >= 0 && row + i < nrow && row + i != ocrow) 2047 if (row + i >= 0 && row + i < nrow && row + i != ocrow)
2153 { 2048 {
2154 line_t s = save[(row + row_offset) % nlines]; 2049 line_t s = ROW(row - view_start);
2155 line_t d = drawn[row]; 2050 line_t d = drawn_buf[row];
2156 line_t d2 = drawn[row + i]; 2051 line_t d2 = drawn_buf[row + i];
2157 2052
2158 for (nits = 0, col = ncol; col--; ) 2053 for (nits = 0, col = ncol; col--; )
2159 if (s.t[col] != d2.t[col] || s.r[col] != d2.r[col]) 2054 if (s.t[col] != d2.t[col] || s.r[col] != d2.r[col])
2160 nits--; 2055 nits--;
2161 else if (s.t[col] != d.t[col] || s.r[col] != d.r[col]) 2056 else if (s.t[col] != d.t[col] || s.r[col] != d.r[col])
… …
2179 2074
2180 if (len != -1) 2075 if (len != -1)
2181 { 2076 {
2182 /* also comes here at end if needed because of >= above */ 2077 /* also comes here at end if needed because of >= above */
2183 if (wlen < len) 2078 if (wlen < len)
2184 SWAP_IT (wlen, len, int); 2079 ::swap (wlen, len);
2185 2080
2186 XCopyArea (display->display, vt, vt, 2081 XCopyArea (display->display, vt, vt,
2187 gc, 0, Row2Pixel (len + i), 2082 gc, 0, Row2Pixel (len + i),
2188 (unsigned int)TermWin_TotalWidth (), 2083 (unsigned int)TermWin_TotalWidth (),
2189 (unsigned int)Height2Pixel (wlen - len + 1), 2084 (unsigned int)Height2Pixel (wlen - len + 1),
… …
2197 /* 2092 /*
2198 * E: main pass across every character 2093 * E: main pass across every character
2199 */ 2094 */
2200 for (row = 0; row < nrow; row++) 2095 for (row = 0; row < nrow; row++)
2201 { 2096 {
2202 text_t *stp = save[(row + row_offset) % total_rows].t; 2097 text_t *stp = ROW(row - view_start).t;
2203 rend_t *srp = save[(row + row_offset) % total_rows].r; 2098 rend_t *srp = ROW(row - view_start).r;
2204 text_t *dtp = drawn[row].t; 2099 text_t *dtp = drawn_buf[row].t;
2205 rend_t *drp = drawn[row].r; 2100 rend_t *drp = drawn_buf[row].r;
2206 2101
2207 /* 2102 /*
2208 * E2: OK, now the real pass 2103 * E2: OK, now the real pass
2209 */ 2104 */
2210 int ypixel = (int)Row2Pixel (row); 2105 int ypixel = (int)Row2Pixel (row);
… …
2321 fore = Color_UL; 2216 fore = Color_UL;
2322#endif 2217#endif
2323 2218
2324 if (invert) 2219 if (invert)
2325 { 2220 {
2326 SWAP_IT (fore, back, int); 2221 ::swap (fore, back);
2327 2222
2328#ifndef NO_BOLD_UNDERLINE_REVERSE 2223#ifndef NO_BOLD_UNDERLINE_REVERSE
2329 if (ISSET_PIXCOLOR (Color_RV)) 2224 if (ISSET_PIXCOLOR (Color_RV))
2330 back = Color_RV; 2225 back = Color_RV;
2331 2226
… …
2423 2318
2424 while (col && ROW(screen.cur.row).t[col] == NOCHAR) 2319 while (col && ROW(screen.cur.row).t[col] == NOCHAR)
2425 col--; 2320 col--;
2426 2321
2427 while (col + cursorwidth < ncol 2322 while (col + cursorwidth < ncol
2428 && drawn[oldcursor.row].t[col + cursorwidth] == NOCHAR) 2323 && drawn_buf[oldcursor.row].t[col + cursorwidth] == NOCHAR)
2429 cursorwidth++; 2324 cursorwidth++;
2430 2325
2431#ifndef NO_CURSORCOLOR 2326#ifndef NO_CURSORCOLOR
2432 if (ISSET_PIXCOLOR (Color_cursor)) 2327 if (ISSET_PIXCOLOR (Color_cursor))
2433 XSetForeground (display->display, gc, pix_colors[Color_cursor]); 2328 XSetForeground (display->display, gc, pix_colors[Color_cursor]);
… …
2465 2360
2466void 2361void
2467rxvt_term::scr_remap_chars () 2362rxvt_term::scr_remap_chars ()
2468{ 2363{
2469 for (int i = total_rows; i--; ) 2364 for (int i = total_rows; i--; )
2470 scr_remap_chars (save[i]); 2365 scr_remap_chars (row_buf [i]);
2471 2366
2472 for (int i = nrow; i--; ) 2367 for (int i = nrow; i--; )
2473 { 2368 {
2474 scr_remap_chars (drawn[i]); 2369 scr_remap_chars (drawn_buf [i]);
2475 scr_remap_chars (swap_save[i]); 2370 scr_remap_chars (swap_buf [i]);
2476 } 2371 }
2477} 2372}
2478 2373
2479void 2374void
2480rxvt_term::scr_recolour () 2375rxvt_term::scr_recolour ()
… …
2577 char r1[] = "\n"; 2472 char r1[] = "\n";
2578 2473
2579 for (row = saveLines - nsaved; 2474 for (row = saveLines - nsaved;
2580 row < saveLines + nrow - 1; row++) 2475 row < saveLines + nrow - 1; row++)
2581 { 2476 {
2582 width = save[row].l >= 0 ? save[row].l 2477 width = row_buf[row].l >= 0 ? row_buf[row].l
2583 : ncol; 2478 : ncol;
2584 for (towrite = width; towrite; towrite -= wrote) 2479 for (towrite = width; towrite; towrite -= wrote)
2585 { 2480 {
2586 wrote = write (fd, & (save[row].t[width - towrite]), 2481 wrote = write (fd, & (row_buf[row].t[width - towrite]),
2587 towrite); 2482 towrite);
2588 if (wrote < 0) 2483 if (wrote < 0)
2589 return; /* XXX: death, no report */ 2484 return; /* XXX: death, no report */
2590 } 2485 }
2591 if (save[row].l >= 0) 2486 if (row_buf[row].l >= 0)
2592 if (write (fd, r1, 1) <= 0) 2487 if (write (fd, r1, 1) <= 0)
2593 return; /* XXX: death, no report */ 2488 return; /* XXX: death, no report */
2594 } 2489 }
2595} 2490}
2596#endif 2491#endif
… …
3073 want_refresh = 1; 2968 want_refresh = 1;
3074 2969
3075 selection.mark.row = row - view_start; 2970 selection.mark.row = row - view_start;
3076 selection.mark.col = col; 2971 selection.mark.col = col;
3077 2972
3078 selection.mark.row = min (max (selection.mark.row, -nsaved), nrow - 1); 2973 selection.mark.row = clamp (selection.mark.row, -nsaved, nrow - 1);
3079 selection.mark.col = min (max (selection.mark.col, 0), ncol - 1); 2974 selection.mark.col = clamp (selection.mark.col, 0, ncol - 1);
3080 2975
3081 while (selection.mark.col > 0 2976 while (selection.mark.col > 0
3082 && ROW(selection.mark.row).t[selection.mark.col] == NOCHAR) 2977 && ROW(selection.mark.row).t[selection.mark.col] == NOCHAR)
3083 --selection.mark.col; 2978 --selection.mark.col;
3084 2979
… …
3189 * flag == 2 ==> button 3 motion 3084 * flag == 2 ==> button 3 motion
3190 */ 3085 */
3191void 3086void
3192rxvt_term::selection_extend (int x, int y, int flag) 3087rxvt_term::selection_extend (int x, int y, int flag)
3193{ 3088{
3194 int col = min (max (Pixel2Col (x), 0), nrow - 1); 3089 int col = clamp (Pixel2Col (x), 0, ncol);
3195 int row = min (max (Pixel2Row (y), 0), ncol); 3090 int row = clamp (Pixel2Row (y), 0, nrow - 1);
3196 3091
3197 /* 3092 /*
3198 * If we're selecting characters (single click) then we must check first 3093 * If we're selecting characters (single click) then we must check first
3199 * if we are at the same place as the original mark. If we are then 3094 * if we are at the same place as the original mark. If we are then
3200 * select nothing. Otherwise, if we're to the right of the mark, you have to 3095 * select nothing. Otherwise, if we're to the right of the mark, you have to
… …
3371 for (int end_row = selection.mark.row; end_row < nrow; end_row++) 3266 for (int end_row = selection.mark.row; end_row < nrow; end_row++)
3372 { 3267 {
3373 if (!ROW(end_row).is_longer ()) 3268 if (!ROW(end_row).is_longer ())
3374 { 3269 {
3375 selection.end.row = end_row; 3270 selection.end.row = end_row;
3376 selection.end.col = save[end_row + saveLines].l; 3271 selection.end.col = ROW(end_row).l;
3377 selection_remove_trailing_spaces (); 3272 selection_remove_trailing_spaces ();
3378 break; 3273 break;
3379 } 3274 }
3380 } 3275 }
3381 } 3276 }
… …
3413 } 3308 }
3414 } 3309 }
3415 3310
3416#if ENABLE_FRILLS 3311#if ENABLE_FRILLS
3417 if (selection.rect && selection.beg.col > selection.end.col) 3312 if (selection.rect && selection.beg.col > selection.end.col)
3418 SWAP_IT (selection.beg.col, selection.end.col, int); 3313 ::swap (selection.beg.col, selection.end.col);
3419#endif 3314#endif
3420} 3315}
3421 3316
3422#if ENABLE_FRILLS 3317#if ENABLE_FRILLS
3423void 3318void
… …
3621 */ 3516 */
3622void 3517void
3623rxvt_term::pixel_position (int *x, int *y) 3518rxvt_term::pixel_position (int *x, int *y)
3624{ 3519{
3625 *x = Pixel2Col (*x); 3520 *x = Pixel2Col (*x);
3626 /* MAX_IT (*x, 0); MIN_IT (*x, (int)ncol - 1); */ 3521 /* max_it (*x, 0); min_it (*x, (int)ncol - 1); */
3627 *y = Pixel2Row (*y); 3522 *y = Pixel2Row (*y);
3628 /* MAX_IT (*y, 0); MIN_IT (*y, (int)nrow - 1); */ 3523 /* max_it (*y, 0); min_it (*y, (int)nrow - 1); */
3629} 3524}
3630 3525
3631/* ------------------------------------------------------------------------- */ 3526/* ------------------------------------------------------------------------- */
3632#ifdef USE_XIM 3527#ifdef USE_XIM
3633void 3528void
… …
3655 3550
3656 if (x < 0) x = ncol - w; 3551 if (x < 0) x = ncol - w;
3657 if (y < 0) y = nrow - h; 3552 if (y < 0) y = nrow - h;
3658 3553
3659 // make space for border 3554 // make space for border
3660 w += 2; MIN_IT (w, ncol); 3555 w += 2; min_it (w, ncol);
3661 h += 2; MIN_IT (h, nrow); 3556 h += 2; min_it (h, nrow);
3662 3557
3663 x -= 1; MAX_IT (x, 0); 3558 x -= 1; clamp_it (x, 0, ncol - w);
3664 y -= 1; MAX_IT (y, 0); 3559 y -= 1; clamp_it (y, 0, nrow - h);
3665
3666 MIN_IT (x, ncol - w);
3667 MIN_IT (y, nrow - h);
3668 3560
3669 ov_x = x; ov_y = y; 3561 ov_x = x; ov_y = y;
3670 ov_w = w; ov_h = h; 3562 ov_w = w; ov_h = h;
3671 3563
3672 ov_text = new text_t *[h]; 3564 ov_text = new text_t *[h];

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