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/cvs/rxvt-unicode/src/screen.C

Comparing rxvt-unicode/src/screen.C (file contents):
Revision 1.201 by root, Sat Dec 31 16:40:28 2005 UTC vs.
Revision 1.247 by root, Sun Jan 22 20:39:47 2006 UTC

1	/*--------------------------------*-C-*--------------------------------------*	1	/*--------------------------------*-C-*--------------------------------------*
2	* File: screen.C	2	* File: screen.C
3	*---------------------------------------------------------------------------*	3	*---------------------------------------------------------------------------*
4	*	4	*
5	* Copyright (c) 1997-2001 Geoff Wing <gcw@pobox.com>	5	* Copyright (c) 1997-2001 Geoff Wing <gcw@pobox.com>
6	* Copyright (c) 2003-2004 Marc Lehmann <pcg@goof.com>	6	* Copyright (c) 2003-2006 Marc Lehmann <pcg@goof.com>
7	*	7	*
8	* This program is free software; you can redistribute it and/or modify	8	* This program is free software; you can redistribute it and/or modify
9	* it under the terms of the GNU General Public License as published by	9	* it under the terms of the GNU General Public License as published by
10	* the Free Software Foundation; either version 2 of the License, or	10	* the Free Software Foundation; either version 2 of the License, or
11	* (at your option) any later version.	11	* (at your option) any later version.
…		…
24	* This file handles _all_ screen updates and selections	24	* This file handles _all_ screen updates and selections
25	*/	25	*/
26		26
27	#include "../config.h" /* NECESSARY */	27	#include "../config.h" /* NECESSARY */
28	#include "rxvt.h" /* NECESSARY */	28	#include "rxvt.h" /* NECESSARY */
		29	#include "rxvtperl.h" /* NECESSARY */
29		30
30	#include <X11/Xmd.h> /* get the typedef for CARD32 */	31	#include <X11/Xmd.h> /* get the typedef for CARD32 */
31		32
32	#include <inttypes.h>	33	#include <inttypes.h>
33		34
…		…
46		47
47	/* ------------------------------------------------------------------------- *	48	/* ------------------------------------------------------------------------- *
48	* GENERAL SCREEN AND SELECTION UPDATE ROUTINES *	49	* GENERAL SCREEN AND SELECTION UPDATE ROUTINES *
49	* ------------------------------------------------------------------------- */	50	* ------------------------------------------------------------------------- */
50	#define ZERO_SCROLLBACK() \	51	#define ZERO_SCROLLBACK() \
51	if (options & Opt_scrollTtyOutput) \	52	if (OPTION (Opt_scrollTtyOutput)) \
52	view_start = 0	53	view_start = 0
53	#define CLEAR_SELECTION() \	54	#define CLEAR_SELECTION() \
54	selection.beg.row = selection.beg.col \	55	selection.beg.row = selection.beg.col \
55	= selection.end.row = selection.end.col = 0	56	= selection.end.row = selection.end.col = 0
56	#define CLEAR_ALL_SELECTION() \	57	#define CLEAR_ALL_SELECTION() \
…		…
114	* SCREEN `COMMON' ROUTINES *	115	* SCREEN `COMMON' ROUTINES *
115	* ------------------------------------------------------------------------- */	116	* ------------------------------------------------------------------------- */
116		117
117	/* Fill part/all of a line with blanks. */	118	/* Fill part/all of a line with blanks. */
118	void	119	void
119	rxvt_term::scr_blank_line (line_t &l, unsigned int col, unsigned int width, rend_t efs)	120	rxvt_term::scr_blank_line (line_t &l, unsigned int col, unsigned int width, rend_t efs) const NOTHROW
120	{	121	{
121	if (!l.t)	122	if (!l.t)
122	{	123	{
123	lalloc (l);	124	lalloc (l);
124	col = 0;	125	col = 0;
125	width = ncol;	126	width = ncol;
126	}	127	}
127		128
		129	l.touch ();
		130
128	efs &= ~RS_baseattrMask;	131	efs &= ~RS_baseattrMask;
129	efs = SET_FONT (efs, FONTSET (efs)->find_font (' '));	132	efs = SET_FONT (efs, FONTSET (efs)->find_font (' '));
130		133
131	text_t *et = l.t + col;	134	text_t *et = l.t + col;
132	rend_t *er = l.r + col;	135	rend_t *er = l.r + col;
…		…
139	}	142	}
140		143
141	/* ------------------------------------------------------------------------- */	144	/* ------------------------------------------------------------------------- */
142	/* Fill a full line with blanks - make sure it is allocated first */	145	/* Fill a full line with blanks - make sure it is allocated first */
143	void	146	void
144	rxvt_term::scr_blank_screen_mem (line_t &l, rend_t efs)	147	rxvt_term::scr_blank_screen_mem (line_t &l, rend_t efs) const NOTHROW
145	{	148	{
146	scr_blank_line (l, 0, ncol, efs);	149	scr_blank_line (l, 0, ncol, efs);
		150
		151	l.l = 0;
		152	l.f = 0;
147	}	153	}
148		154
149	/* ------------------------------------------------------------------------- *	155	/* ------------------------------------------------------------------------- *
150	* SCREEN INITIALISATION *	156	* SCREEN INITIALISATION *
151	* ------------------------------------------------------------------------- */	157	* ------------------------------------------------------------------------- */
…		…
167	nrow = 24;	173	nrow = 24;
168		174
169	if (ncol == prev_ncol && nrow == prev_nrow)	175	if (ncol == prev_ncol && nrow == prev_nrow)
170	return;	176	return;
171		177
		178	if (current_screen != PRIMARY)
		179	scr_swap_screen ();
		180
172	// we need at least two lines for wrapping to work correctly	181	// we need at least two lines for wrapping to work correctly
173	if (nrow + saveLines < 2)	182	while (nrow + saveLines < 2)
174	{	183	{
175	//TODO//FIXME	184	//TODO//FIXME
176	saveLines++;	185	saveLines++;
177	prev_nrow--;	186	prev_nrow--;
178	nsaved++;	187	top_row--;
179	}	188	}
180		189
181	want_refresh = 1;	190	want_refresh = 1;
182		191
183	int prev_total_rows = prev_nrow + saveLines;	192	int prev_total_rows = prev_nrow + saveLines;
…		…
188		197
189	if (!row_buf)	198	if (!row_buf)
190	{	199	{
191	/*	200	/*
192	* first time called so just malloc everything: don't rely on realloc	201	* first time called so just malloc everything: don't rely on realloc
193	* Note: this is still needed so that all the scrollback lines are NULL
194	*/	202	*/
195	nsaved = 0; /* no saved lines */	203	top_row = 0;
196	term_start = 0;	204	term_start = 0;
197		205
198	talloc = new rxvt_salloc (ncol * sizeof (text_t));	206	talloc = new rxvt_salloc (ncol * sizeof (text_t));
199	ralloc = new rxvt_salloc (ncol * sizeof (rend_t));	207	ralloc = new rxvt_salloc (ncol * sizeof (rend_t));
200		208
201	row_buf = (line_t *)rxvt_calloc (total_rows, sizeof (line_t));	209	row_buf = (line_t *)rxvt_calloc (total_rows + nrow, sizeof (line_t));
202	temp_buf = (line_t *)rxvt_calloc (total_rows, sizeof (line_t));
203	drawn_buf = (line_t *)rxvt_calloc (nrow , sizeof (line_t));	210	drawn_buf = (line_t *)rxvt_calloc (nrow , sizeof (line_t));
204	swap_buf = (line_t *)rxvt_calloc (nrow , sizeof (line_t));	211	swap_buf = (line_t *)rxvt_calloc (nrow , sizeof (line_t));
205		212
206	for (int row = nrow; row--; )	213	for (int row = nrow; row--; )
207	{	214	{
208	scr_blank_screen_mem (ROW (row), DEFAULT_RSTYLE);	215	scr_blank_screen_mem (ROW (row), DEFAULT_RSTYLE);
209	scr_blank_screen_mem (swap_buf [row], DEFAULT_RSTYLE);	216	scr_blank_screen_mem (swap_buf [row], DEFAULT_RSTYLE);
…		…
230	selection.text = NULL;	237	selection.text = NULL;
231	selection.len = 0;	238	selection.len = 0;
232	selection.op = SELECTION_CLEAR;	239	selection.op = SELECTION_CLEAR;
233	selection.screen = PRIMARY;	240	selection.screen = PRIMARY;
234	selection.clicks = 0;	241	selection.clicks = 0;
235	CLEAR_ALL_SELECTION ();	242	rvideo_state = rvideo_mode = false;
236	rvideo = 0;
237	}	243	}
238	else	244	else
239	{	245	{
240	/*	246	/*
241	* add or delete rows as appropriate	247	* add or delete rows as appropriate
…		…
254	}	260	}
255	}	261	}
256	#endif	262	#endif
257		263
258	drawn_buf = (line_t *)rxvt_realloc (drawn_buf, nrow * sizeof (line_t));	264	drawn_buf = (line_t *)rxvt_realloc (drawn_buf, nrow * sizeof (line_t));
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));	265	swap_buf = (line_t *)rxvt_realloc (swap_buf , nrow * sizeof (line_t));
261		266
262	for (int row = min (nrow, prev_nrow); row--; )	267	for (int row = min (nrow, prev_nrow); row--; )
263	{	268	{
264	lresize (drawn_buf[row]);	269	lresize (drawn_buf[row]);
…		…
269	{	274	{
270	swap_buf [row].clear (); scr_blank_screen_mem (swap_buf [row], DEFAULT_RSTYLE);	275	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);	276	drawn_buf[row].clear (); scr_blank_screen_mem (drawn_buf[row], DEFAULT_RSTYLE);
272	}	277	}
273		278
		279	line_t *old_buf = row_buf;
274	line_t *old_buf = row_buf; row_buf = (line_t *)rxvt_calloc (total_rows, sizeof (line_t));	280	row_buf = (line_t *)rxvt_calloc (total_rows + nrow, sizeof (line_t));
275		281
276	int p = MOD (term_start + prev_nrow, prev_total_rows); // previous row	282	int p = MOD (term_start + prev_nrow, prev_total_rows); // previous row
277	int pend = MOD (term_start - nsaved , prev_total_rows);	283	int pend = MOD (term_start + top_row , prev_total_rows);
278	int q = total_rows; // rewrapped row	284	int q = total_rows; // rewrapped row
279		285
280	if (nsaved)	286	if (top_row)
281	{	287	{
282	// re-wrap lines, this is rather ugly, possibly because I am too dumb	288	// Re-wrap lines. This is rather ugly, possibly because I am too dumb
283	// to come up with a lean and mean algorithm.	289	// to come up with a lean and mean algorithm.
284		290
285	row_col_t ocur = screen.cur;	291	row_col_t ocur = screen.cur;
286	ocur.row = MOD (term_start + ocur.row, prev_total_rows);	292	ocur.row = MOD (term_start + ocur.row, prev_total_rows);
287		293
…		…
289	{	295	{
290	p = MOD (p - 1, prev_total_rows);	296	p = MOD (p - 1, prev_total_rows);
291	#ifdef DEBUG_STRICT	297	#ifdef DEBUG_STRICT
292	assert (old_buf [MOD (p, prev_total_rows)].t);	298	assert (old_buf [MOD (p, prev_total_rows)].t);
293	#endif	299	#endif
294
295	int plines = 1;	300	int plines = 1;
296	int llen = old_buf [MOD (p, prev_total_rows)].l;	301	int llen = old_buf [MOD (p, prev_total_rows)].l;
297		302
298	while (p != pend && old_buf [MOD (p - 1, prev_total_rows)].is_longer ())	303	while (p != pend && old_buf [MOD (p - 1, prev_total_rows)].is_longer ())
299	{	304	{
…		…
317	// re-assemble the full line by destination lines	322	// re-assemble the full line by destination lines
318	for (int qrow = q; qlines--; qrow++)	323	for (int qrow = q; qlines--; qrow++)
319	{	324	{
320	qline = row_buf + qrow;	325	qline = row_buf + qrow;
321	lalloc (*qline);	326	lalloc (*qline);
		327	qline->l = ncol;
322	qline->set_is_longer ();	328	qline->is_longer (1);
323		329
324	int qcol = 0;	330	int qcol = 0;
325		331
		332	// see below for cursor adjustment rationale
		333	if (p == ocur.row)
		334	screen.cur.row = q - (total_rows - nrow);
		335
326	// fill a single destination line	336	// fill a single destination line
327	while (lofs < llen && qcol < ncol)	337	while (lofs < llen && qcol < ncol)
328	{	338	{
329	int prow = lofs / prev_ncol;	339	int prow = lofs / prev_ncol;
330	int pcol = lofs % prev_ncol;	340	int pcol = lofs % prev_ncol;
…		…
340		350
341	line_t &pline = old_buf [prow];	351	line_t &pline = old_buf [prow];
342		352
343	int len = min (min (prev_ncol - pcol, ncol - qcol), llen - lofs);	353	int len = min (min (prev_ncol - pcol, ncol - qcol), llen - lofs);
344		354
345	assert (len);
346	assert (pline.t);
347
348	memcpy (qline->t + qcol, pline.t + pcol, len * sizeof (text_t));	355	memcpy (qline->t + qcol, pline.t + pcol, len * sizeof (text_t));
349	memcpy (qline->r + qcol, pline.r + pcol, len * sizeof (rend_t));	356	memcpy (qline->r + qcol, pline.r + pcol, len * sizeof (rend_t));
350		357
351	lofs += len;	358	lofs += len;
352	qcol += len;	359	qcol += len;
353	}	360	}
354	}	361	}
355		362
356	qline->l = llen ? MOD (llen - 1, ncol) + 1 : 0;	363	qline->l = llen ? MOD (llen - 1, ncol) + 1 : 0;
357	#ifdef DEBUG_STRICT //TODO//FIXME//TEMPORARY	364	qline->is_longer (0);
358	if (qline->l < 0)
359	{
360	fprintf (stderr, "ERROR, PLEASE REPORT to rxvt-unicode@plan9.de: qline->l %d = llen %d < ncol %d ? %d : MOD %d\n", qline->l,llen,ncol,llen,MOD (llen - 1, ncol) + 1);//D
361	qline->l = 0;
362	}
363	#endif
364	scr_blank_line (*qline, qline->l, ncol - qline->l, DEFAULT_RSTYLE);	365	scr_blank_line (*qline, qline->l, ncol - qline->l, DEFAULT_RSTYLE);
365	}	366	}
366	while (p != pend && q > 0);	367	while (p != pend && q > 0);
367		368
368	term_start = total_rows - nrow;	369	term_start = total_rows - nrow;
369	nsaved = term_start - q;	370	top_row = q - term_start;
370		371
371	// make sure all terminal lines exist	372	// make sure all terminal lines exist
372	while (nsaved < 0)	373	while (top_row > 0)
373	scr_blank_screen_mem (ROW (-++nsaved), DEFAULT_RSTYLE);	374	scr_blank_screen_mem (ROW (--top_row), DEFAULT_RSTYLE);
374
375	}	375	}
376	else	376	else
377	{	377	{
378	// if no scrollback exists (yet), wing, instead of wrap	378	// if no scrollback exists (yet), wing, instead of wrap
379		379
…		…
392	}	392	}
393		393
394	term_start = 0;	394	term_start = 0;
395	}	395	}
396		396
397	#ifdef DEBUG_STRICT //TODO: remove
398	for (int i = -nsaved; i < nrow; i++)
399	assert (ROW (i).t);
400	#endif
401
402	free (old_buf);	397	free (old_buf);
403	delete old_ta;	398	delete old_ta;
404	delete old_ra;	399	delete old_ra;
405		400
406	clamp_it (screen.cur.row, 0, nrow - 1);	401	clamp_it (screen.cur.row, 0, nrow - 1);
407	clamp_it (screen.cur.col, 0, ncol - 1);	402	clamp_it (screen.cur.col, 0, ncol - 1);
408		403
409	if (tabs)
410	free (tabs);	404	free (tabs);
411	}	405	}
		406
		407	CLEAR_ALL_SELECTION ();
412		408
413	prev_nrow = nrow;	409	prev_nrow = nrow;
414	prev_ncol = ncol;	410	prev_ncol = ncol;
415		411
416	tabs = (char *)rxvt_malloc (ncol * sizeof (char));	412	tabs = (char *)rxvt_malloc (ncol * sizeof (char));
417		413
418	for (int col = ncol; col--; )	414	for (int col = ncol; col--; )
419	tabs [col] = col % TABSIZE == 0;	415	tabs [col] = col % TABSIZE == 0;
420		416
		417	if (current_screen != PRIMARY)
		418	scr_swap_screen ();
		419
421	tt_winch ();	420	tt_winch ();
		421
		422	HOOK_INVOKE ((this, HOOK_RESET, DT_END));
422	}	423	}
423		424
424	/* ------------------------------------------------------------------------- */	425	/* ------------------------------------------------------------------------- */
425	/*	426	/*
426	* Free everything. That way malloc debugging can find leakage.	427	* Free everything. That way malloc debugging can find leakage.
427	*/	428	*/
428	void	429	void
429	rxvt_term::scr_release ()	430	rxvt_term::scr_release () NOTHROW
430	{	431	{
		432	if (row_buf)
		433	{
431	delete talloc; talloc = 0;	434	delete talloc; talloc = 0;
432	delete ralloc; ralloc = 0;	435	delete ralloc; ralloc = 0;
433		436
434	free (row_buf);	437	free (row_buf);
435	free (swap_buf);	438	free (swap_buf);
436	free (drawn_buf);	439	free (drawn_buf);
437	free (temp_buf);
438	free (tabs);	440	free (tabs);
439		441
440	row_buf = 0; // signal that we freed all the arrays	442	row_buf = 0; // signal that we freed all the arrays
		443	}
441	}	444	}
442		445
443	/* ------------------------------------------------------------------------- */	446	/* ------------------------------------------------------------------------- */
444	/*	447	/*
445	* Hard reset	448	* Hard reset
…		…
450	scr_release ();	453	scr_release ();
451	prev_nrow = prev_ncol = 0;	454	prev_nrow = prev_ncol = 0;
452	scr_reset ();	455	scr_reset ();
453		456
454	scr_clear (true);	457	scr_clear (true);
455	scr_refresh (SLOW_REFRESH);	458	scr_refresh ();
456	}	459	}
457		460
458	/* ------------------------------------------------------------------------- *	461	/* ------------------------------------------------------------------------- *
459	* PROCESS SCREEN COMMANDS *	462	* PROCESS SCREEN COMMANDS *
460	* ------------------------------------------------------------------------- */	463	* ------------------------------------------------------------------------- */
…		…
462	* Save and Restore cursor	465	* Save and Restore cursor
463	* XTERM_SEQ: Save cursor : ESC 7	466	* XTERM_SEQ: Save cursor : ESC 7
464	* XTERM_SEQ: Restore cursor: ESC 8	467	* XTERM_SEQ: Restore cursor: ESC 8
465	*/	468	*/
466	void	469	void
467	rxvt_term::scr_cursor (int mode)	470	rxvt_term::scr_cursor (cursor_mode mode) NOTHROW
468	{	471	{
469	screen_t *s;	472	screen_t *s;
470		473
471	#if NSCREENS && !defined(NO_SECONDARY_SCREEN_CURSOR)	474	#if NSCREENS && !defined(NO_SECONDARY_SCREEN_CURSOR)
472	if (current_screen == SECONDARY)	475	if (current_screen == SECONDARY)
…		…
504	assert (s->cur.row >= 0);	507	assert (s->cur.row >= 0);
505	assert (s->cur.col >= 0);	508	assert (s->cur.col >= 0);
506	#endif	509	#endif
507	}	510	}
508		511
		512	void
		513	rxvt_term::scr_swap_screen ()
		514	{
		515	if (!OPTION (Opt_secondaryScreen))
		516	return;
		517
		518	for (int i = prev_nrow; i--; )
		519	::swap (ROW(i), swap_buf [i]);
		520
		521	::swap (screen.cur, swap.cur);
		522
		523	screen.cur.row = clamp (screen.cur.row, 0, prev_nrow - 1);
		524	screen.cur.col = clamp (screen.cur.col, 0, prev_ncol - 1);
		525	}
		526
509	/* ------------------------------------------------------------------------- */	527	/* ------------------------------------------------------------------------- */
510	/*	528	/*
511	* Swap between primary and secondary screens	529	* Swap between primary and secondary screens
512	* XTERM_SEQ: Primary screen : ESC [ ? 4 7 h	530	* XTERM_SEQ: Primary screen : ESC [ ? 4 7 h
513	* XTERM_SEQ: Secondary screen: ESC [ ? 4 7 l	531	* XTERM_SEQ: Secondary screen: ESC [ ? 4 7 l
514	*/	532	*/
515	int	533	void
516	rxvt_term::scr_change_screen (int scrn)	534	rxvt_term::scr_change_screen (int scrn)
517	{	535	{
		536	if (scrn == current_screen)
		537	return;
		538
518	want_refresh = 1;	539	want_refresh = 1;
519	view_start = 0;	540	view_start = 0;
520		541
521	if (current_screen == scrn)
522	return scrn;
523
524	selection_check (2); /* check for boundary cross */	542	selection_check (2); /* check for boundary cross */
525		543
526	int i = current_screen; current_screen = scrn; scrn = i;	544	int i = current_screen; current_screen = scrn; scrn = i;
527		545
528	::swap (screen.cur.row, swap.cur.row);
529	::swap (screen.cur.col, swap.cur.col);
530
531	screen.cur.row = clamp (screen.cur.row, 0, prev_nrow - 1);
532	screen.cur.col = clamp (screen.cur.col, 0, prev_ncol - 1);
533
534	#if NSCREENS	546	#if NSCREENS
535	if (options & Opt_secondaryScreen)	547	if (OPTION (Opt_secondaryScreen))
536	{	548	{
537	num_scr = 0;	549	num_scr = 0;
538		550
539	for (int i = prev_nrow; i--; )	551	scr_swap_screen ();
540	::swap (ROW(i), swap_buf [i]);
541		552
542	::swap (screen.charset, swap.charset);	553	::swap (screen.charset, swap.charset);
543	::swap (screen.flags, swap.flags);	554	::swap (screen.flags, swap.flags);
544	screen.flags |= Screen_VisibleCursor;	555	screen.flags |= Screen_VisibleCursor;
545	swap.flags |= Screen_VisibleCursor;	556	swap.flags |= Screen_VisibleCursor;
546	}	557	}
547	else	558	else
548	#endif	559	#endif
549	if (options & Opt_secondaryScroll)	560	if (OPTION (Opt_secondaryScroll))
550	scr_scroll_text (0, prev_nrow - 1, prev_nrow);	561	scr_scroll_text (0, prev_nrow - 1, prev_nrow);
551
552	return scrn;
553	}	562	}
554		563
555	// clear WrapNext indicator, solidifying position on next line	564	// clear WrapNext indicator, solidifying position on next line
556	void	565	void
557	rxvt_term::scr_do_wrap ()	566	rxvt_term::scr_do_wrap () NOTHROW
558	{	567	{
559	if (!(screen.flags & Screen_WrapNext))	568	if (!(screen.flags & Screen_WrapNext))
560	return;	569	return;
561		570
562	screen.flags &= ~Screen_WrapNext;	571	screen.flags &= ~Screen_WrapNext;
…		…
572	/* ------------------------------------------------------------------------- */	581	/* ------------------------------------------------------------------------- */
573	/*	582	/*
574	* Change the colour for following text	583	* Change the colour for following text
575	*/	584	*/
576	void	585	void
577	rxvt_term::scr_color (unsigned int color, int fgbg)	586	rxvt_term::scr_color (unsigned int color, int fgbg) NOTHROW
578	{	587	{
579	if (color > maxTermCOLOR)	588	if (!IN_RANGE_INC (color, minCOLOR, maxTermCOLOR))
580	color = fgbg;	589	color = fgbg;
581		590
582	if (fgbg == Color_fg)	591	if (fgbg == Color_fg)
583	rstyle = SET_FGCOLOR (rstyle, color);	592	rstyle = SET_FGCOLOR (rstyle, color);
584	else	593	else
…		…
588	/* ------------------------------------------------------------------------- */	597	/* ------------------------------------------------------------------------- */
589	/*	598	/*
590	* Change the rendition style for following text	599	* Change the rendition style for following text
591	*/	600	*/
592	void	601	void
593	rxvt_term::scr_rendition (int set, int style)	602	rxvt_term::scr_rendition (int set, int style) NOTHROW
594	{	603	{
595	if (set)	604	if (set)
596	rstyle |= style;	605	rstyle |= style;
597	else if (style == ~RS_None)	606	else if (style == ~RS_None)
598	rstyle = DEFAULT_RSTYLE;	607	rstyle = DEFAULT_RSTYLE;
…		…
605	* Scroll text between <row1> and <row2> inclusive, by <count> lines	614	* Scroll text between <row1> and <row2> inclusive, by <count> lines
606	* count positive ==> scroll up	615	* count positive ==> scroll up
607	* count negative ==> scroll down	616	* count negative ==> scroll down
608	*/	617	*/
609	int	618	int
610	rxvt_term::scr_scroll_text (int row1, int row2, int count)	619	rxvt_term::scr_scroll_text (int row1, int row2, int count) NOTHROW
611	{	620	{
612	if (count == 0 || (row1 > row2))	621	if (count == 0 || (row1 > row2))
613	return 0;	622	return 0;
614		623
615	want_refresh = 1;	624	want_refresh = 1;
616	num_scr += count;	625	num_scr += count;
617		626
618	if (count > 0	627	if (count > 0
619	&& row1 == 0	628	&& row1 == 0
620	&& row2 == nrow - 1
621	&& (current_screen == PRIMARY || options & Opt_secondaryScroll))	629	&& (current_screen == PRIMARY || OPTION (Opt_secondaryScroll)))
622	{	630	{
623	nsaved = min (nsaved + count, saveLines);	631	top_row = max (top_row - count, -saveLines);
		632
		633	// scroll everything up 'count' lines
624	term_start = (term_start + count) % total_rows;	634	term_start = (term_start + count) % total_rows;
625		635
		636	// sever bottommost line
		637	{
		638	line_t &l = ROW(row2 - count);
		639	l.is_longer (0);
		640	l.touch ();
		641	}
		642
		643	// erase newly scrolled-in lines
		644	for (int i = count; i--; )
		645	{
		646	// basically this is a slightly optimized scr_blank_screen_mem
		647	// it is worth the effort on slower machines
		648	line_t &l = ROW(nrow - 1 - i);
		649
		650	scr_blank_line (l, 0, l.l, rstyle);
		651
		652	l.l = 0;
		653	l.f = 0;
		654	}
		655
		656	// now copy lines below the scroll region bottom to the
		657	// bottom of the screen again, so they look as if they
		658	// hadn't moved.
		659	for (int i = nrow; --i > row2; )
		660	{
		661	line_t &l1 = ROW(i - count);
		662	line_t &l2 = ROW(i);
		663
		664	::swap (l1, l2);
		665	l2.touch ();
		666	}
		667
		668	// move and/or clear selection, if any
626	if (selection.op && current_screen == selection.screen)	669	if (selection.op && current_screen == selection.screen)
627	{	670	{
628	selection.beg.row -= count;	671	selection.beg.row -= count;
629	selection.end.row -= count;	672	selection.end.row -= count;
630	selection.mark.row -= count;	673	selection.mark.row -= count;
631		674
632	if (selection.beg.row < -nsaved	675	if (selection.beg.row < top_row
633	|| selection.end.row < -nsaved	676	|| selection.end.row < top_row
634	|| selection.mark.row < -nsaved)	677	|| selection.mark.row < top_row)
635	{	678	{
636	CLEAR_ALL_SELECTION ();	679	CLEAR_ALL_SELECTION ();
637	selection.op = SELECTION_CLEAR;	680	selection.op = SELECTION_CLEAR;
638	}	681	}
639	}	682	}
640		683
641	for (int i = count; i--; )	684	// finally move the view window, if desired
642	{
643	ROW(row2 - i).l = 0;
644	scr_blank_screen_mem (ROW(row2 - i), rstyle);
645	}
646
647	if ((options & Opt_scrollWithBuffer)	685	if (OPTION (Opt_scrollWithBuffer)
648	&& view_start != 0	686	&& view_start != 0
649	&& view_start != saveLines)	687	&& view_start != -saveLines)
650	scr_page (UP, count);	688	scr_page (UP, count);
		689
		690	if (SHOULD_INVOKE (HOOK_SCROLL_BACK))
		691	HOOK_INVOKE ((this, HOOK_SCROLL_BACK, DT_INT, count, DT_INT, top_row, DT_END));
651	}	692	}
652	else	693	else
653	{	694	{
654	if (selection.op && current_screen == selection.screen)	695	if (selection.op && current_screen == selection.screen)
655	{	696	{
…		…
679		720
680	int rows = row2 - row1 + 1;	721	int rows = row2 - row1 + 1;
681		722
682	min_it (count, rows);	723	min_it (count, rows);
683		724
		725	line_t *temp_buf = row_buf + total_rows;
		726
684	for (int row = 0; row < rows; row++)	727	for (int row = 0; row < rows; row++)
685	{	728	{
686	temp_buf [row] = ROW(row1 + (row + count + rows) % rows);	729	temp_buf [row] = ROW(row1 + (row + count + rows) % rows);
687		730
688	if (!IN_RANGE_EXC (row + count, 0, rows))	731	if (!IN_RANGE_EXC (row + count, 0, rows))
…		…
699	/* ------------------------------------------------------------------------- */	742	/* ------------------------------------------------------------------------- */
700	/*	743	/*
701	* Add text given in <str> of length <len> to screen struct	744	* Add text given in <str> of length <len> to screen struct
702	*/	745	*/
703	void	746	void
704	rxvt_term::scr_add_lines (const unicode_t *str, int nlines, int len)	747	rxvt_term::scr_add_lines (const wchar_t *str, int len, int minlines) NOTHROW
705	{	748	{
706	if (len <= 0) /* sanity */	749	if (len <= 0) /* sanity */
707	return;	750	return;
708		751
709	unsigned char checksel;	752	unsigned char checksel;
710	unicode_t c;	753	unicode_t c;
711	int last_col;	754	int ncol = this->ncol;
712	const unicode_t *strend = str + len;	755	const wchar_t *strend = str + len;
713		756
714	want_refresh = 1;	757	want_refresh = 1;
715	ZERO_SCROLLBACK ();	758	ZERO_SCROLLBACK ();
716	last_col = ncol;
717		759
718	if (nlines > 0)	760	if (minlines > 0)
719	{	761	{
720	nlines += screen.cur.row - screen.bscroll;	762	minlines += screen.cur.row - screen.bscroll;
		763
721	if (nlines > 0	764	if (minlines > 0
722	&& screen.tscroll == 0	765	&& screen.tscroll == 0
723	&& screen.bscroll == (nrow - 1))	766	&& screen.bscroll == nrow - 1)
724	{	767	{
725	/* _at least_ this many lines need to be scrolled */	768	/* _at least_ this many lines need to be scrolled */
726	scr_scroll_text (screen.tscroll, screen.bscroll, nlines);	769	scr_scroll_text (screen.tscroll, screen.bscroll, minlines);
727	screen.cur.row -= nlines;	770	screen.cur.row -= minlines;
728	}	771	}
729	}	772	}
730		773
731	#ifdef DEBUG_STRICT	774	#ifdef DEBUG_STRICT
732	assert (screen.cur.col < last_col);	775	assert (screen.cur.col < ncol);
733	assert (screen.cur.row < nrow	776	assert (screen.cur.row < nrow
734	&& screen.cur.row >= -nsaved);	777	&& screen.cur.row >= top_row);
735	#endif	778	#endif
736	int row = screen.cur.row;	779	int row = screen.cur.row;
737		780
738	checksel = selection.op && current_screen == selection.screen ? 1 : 0;	781	checksel = selection.op && current_screen == selection.screen ? 1 : 0;
739		782
740	line_t *line = &ROW(row);	783	line_t *line = &ROW(row);
741		784
742	while (str < strend)	785	while (str < strend)
743	{	786	{
744	c = *str++;	787	c = (unicode_t)*str++; // convert to rxvt-unicodes representation
745		788
746	if (c < 0x20)	789	if (c < 0x20)
747	if (c == C0_LF)	790	if (c == C0_LF)
748	{	791	{
749	if (!line->is_longer ()) /* XXX: think about this */
750	max_it (line->l, screen.cur.col);	792	max_it (line->l, screen.cur.col);
751		793
752	screen.flags &= ~Screen_WrapNext;	794	screen.flags &= ~Screen_WrapNext;
753		795
754	if (screen.cur.row == screen.bscroll)	796	if (screen.cur.row == screen.bscroll)
755	scr_scroll_text (screen.tscroll, screen.bscroll, 1);	797	scr_scroll_text (screen.tscroll, screen.bscroll, 1);
…		…
759	line = &ROW(row); /* _must_ refresh */	801	line = &ROW(row); /* _must_ refresh */
760	continue;	802	continue;
761	}	803	}
762	else if (c == C0_CR)	804	else if (c == C0_CR)
763	{	805	{
764	if (!line->is_longer ()) /* XXX: think about this */
765	max_it (line->l, screen.cur.col);	806	max_it (line->l, screen.cur.col);
766		807
767	screen.flags &= ~Screen_WrapNext;	808	screen.flags &= ~Screen_WrapNext;
768	screen.cur.col = 0;	809	screen.cur.col = 0;
769	continue;	810	continue;
770	}	811	}
…		…
787	CLEAR_SELECTION ();	828	CLEAR_SELECTION ();
788	}	829	}
789		830
790	if (screen.flags & Screen_WrapNext)	831	if (screen.flags & Screen_WrapNext)
791	{	832	{
792	line->set_is_longer ();
793
794	scr_do_wrap ();	833	scr_do_wrap ();
795		834
		835	line->l = ncol;
		836	line->is_longer (1);
		837
796	row = screen.cur.row;	838	row = screen.cur.row;
797	line = &ROW(row); /* _must_ refresh */	839	line = &ROW(row); /* _must_ refresh */
798	}	840	}
799		841
800	// some utf-8 decoders "decode" surrogate characters: let's fix this.	842	// some utf-8 decoders "decode" surrogate characters: let's fix this.
…		…
805	// do wcwidth before further replacements, as wcwidth might return -1	847	// do wcwidth before further replacements, as wcwidth might return -1
806	// for the line drawing characters below as they might be invalid in the current	848	// for the line drawing characters below as they might be invalid in the current
807	// locale.	849	// locale.
808	int width = c < 0x100 ? 1 : wcwidth (c);	850	int width = c < 0x100 ? 1 : wcwidth (c);
809		851
810	if (charsets[screen.charset] == '0') // DEC SPECIAL	852	if (charsets [screen.charset] == '0') // DEC SPECIAL
811	{	853	{
812	// vt100 special graphics and line drawing	854	// vt100 special graphics and line drawing
813	// 5f-7e standard vt100	855	// 5f-7e standard vt100
814	// 40-5e rxvt extension for extra curses acs chars	856	// 40-5e rxvt extension for extra curses acs chars
815	static uint16_t vt100_0[62] = { // 41 .. 7e	857	static uint16_t vt100_0[62] = { // 41 .. 7e
…		…
867	}	909	}
868		910
869	rend_t rend = SET_FONT (rstyle, FONTSET (rstyle)->find_font (c));	911	rend_t rend = SET_FONT (rstyle, FONTSET (rstyle)->find_font (c));
870		912
871	// if the character doesn't fit into the remaining columns...	913	// if the character doesn't fit into the remaining columns...
872	if (screen.cur.col > last_col - width && last_col >= width)	914	if (screen.cur.col > ncol - width && ncol >= width)
873	{	915	{
874	// ...output spaces	916	// ...output spaces
875	c = ' ';	917	c = ' ';
876	// and try the same character next loop iteration	918	// and try the same character next loop iteration
877	--str;	919	--str;
878	}	920	}
879		921
		922	line->touch ();
		923
880	do	924	do
881	{	925	{
882	line->t[screen.cur.col] = c;	926	line->t[screen.cur.col] = c;
883	line->r[screen.cur.col] = rend;	927	line->r[screen.cur.col] = rend;
884		928
885	if (screen.cur.col < last_col - 1)	929	if (screen.cur.col < ncol - 1)
886	screen.cur.col++;	930	screen.cur.col++;
887	else	931	else
888	{	932	{
889	line->l = last_col;	933	line->l = ncol;
890	if (screen.flags & Screen_Autowrap)	934	if (screen.flags & Screen_Autowrap)
891	screen.flags |= Screen_WrapNext;	935	screen.flags |= Screen_WrapNext;
892	break;	936	break;
893	}	937	}
894		938
…		…
896	}	940	}
897	while (--width > 0);	941	while (--width > 0);
898		942
899	// pad with spaces when overwriting wide character with smaller one	943	// pad with spaces when overwriting wide character with smaller one
900	if (!width)	944	if (!width)
		945	{
		946	line->touch ();
		947
901	for (int c = screen.cur.col; c < last_col && line->t[c] == NOCHAR; c++)	948	for (int c = screen.cur.col; c < ncol && line->t[c] == NOCHAR; c++)
902	{	949	{
903	line->t[c] = ' ';	950	line->t[c] = ' ';
904	line->r[c] = rend;	951	line->r[c] = rend;
905	}	952	}
		953	}
906	}	954	}
907	else // width == 0	955	else // width == 0
908	{	956	{
909	#if ENABLE_COMBINING	957	#if ENABLE_COMBINING
910	// handle combining characters	958	// handle combining characters
911	// we just tag the accent on the previous on-screen character.	959	// we just tag the accent on the previous on-screen character.
912	// this is arguably not correct, but also arguably not wrong.	960	// this is arguably not correct, but also arguably not wrong.
913	// we don't handle double-width characters nicely yet.	961	// we don't handle double-width characters nicely yet.
		962	line_t *linep;
914	text_t *tp;	963	text_t *tp;
915	rend_t *rp;	964	rend_t *rp;
916		965
917	if (screen.cur.col > 0)	966	if (screen.cur.col > 0)
918	{	967	{
		968	linep = line;
919	tp = line->t + screen.cur.col - 1;	969	tp = line->t + screen.cur.col - 1;
920	rp = line->r + screen.cur.col - 1;	970	rp = line->r + screen.cur.col - 1;
921
922	while (*tp == NOCHAR && tp > line->t)
923	tp--, rp--;
924	}	971	}
925	else if (screen.cur.row > 0	972	else if (screen.cur.row > 0
926	&& ROW(screen.cur.row - 1).is_longer ())	973	&& ROW(screen.cur.row - 1).is_longer ())
927	{	974	{
928	line_t *line = &ROW(screen.cur.row - 1);	975	linep = &ROW(screen.cur.row - 1);
929
930	tp = line->t + last_col - 1;	976	tp = line->t + ncol - 1;
931	rp = line->r + last_col - 1;	977	rp = line->r + ncol - 1;
932
933	while (*tp == NOCHAR && tp > line->t)
934	tp--, rp--;
935	}	978	}
936	else	979	else
937	continue;	980	continue;
		981
		982	linep->touch ();
		983
		984	while (*tp == NOCHAR && tp > linep->t)
		985	tp--, rp--;
938		986
939	// first try to find a precomposed character	987	// first try to find a precomposed character
940	unicode_t n = rxvt_compose (*tp, c);	988	unicode_t n = rxvt_compose (*tp, c);
941	if (n == NOCHAR)	989	if (n == NOCHAR)
942	n = rxvt_composite.compose (*tp, c);	990	n = rxvt_composite.compose (*tp, c);
…		…
945	*rp = SET_FONT (*rp, FONTSET (*rp)->find_font (*tp));	993	*rp = SET_FONT (*rp, FONTSET (*rp)->find_font (*tp));
946	#endif	994	#endif
947	}	995	}
948	}	996	}
949		997
950	if (!line->is_longer ()) /* XXX: think about this */
951	max_it (line->l, screen.cur.col);	998	max_it (line->l, screen.cur.col);
952		999
953	#ifdef DEBUG_STRICT	1000	#ifdef DEBUG_STRICT
954	assert (screen.cur.row >= 0);	1001	assert (screen.cur.row >= 0);
955	#endif	1002	#endif
956	}	1003	}
…		…
959	/*	1006	/*
960	* Process Backspace. Move back the cursor back a position, wrap if have to	1007	* Process Backspace. Move back the cursor back a position, wrap if have to
961	* XTERM_SEQ: CTRL-H	1008	* XTERM_SEQ: CTRL-H
962	*/	1009	*/
963	void	1010	void
964	rxvt_term::scr_backspace ()	1011	rxvt_term::scr_backspace () NOTHROW
965	{	1012	{
966	want_refresh = 1;	1013	want_refresh = 1;
967		1014
968	if (screen.cur.col == 0)	1015	if (screen.cur.col == 0)
969	{	1016	{
…		…
987	* Process Horizontal Tab	1034	* Process Horizontal Tab
988	* count: +ve = forward; -ve = backwards	1035	* count: +ve = forward; -ve = backwards
989	* XTERM_SEQ: CTRL-I	1036	* XTERM_SEQ: CTRL-I
990	*/	1037	*/
991	void	1038	void
992	rxvt_term::scr_tab (int count, bool ht)	1039	rxvt_term::scr_tab (int count, bool ht) NOTHROW
993	{	1040	{
994	int i, x;	1041	int i, x;
995		1042
996	want_refresh = 1;	1043	want_refresh = 1;
997	i = x = screen.cur.col;	1044	i = x = screen.cur.col;
…		…
1006		1053
1007	for (; ++i < ncol; )	1054	for (; ++i < ncol; )
1008	if (tabs[i])	1055	if (tabs[i])
1009	{	1056	{
1010	x = i;	1057	x = i;
		1058
1011	if (!--count)	1059	if (!--count)
1012	break;	1060	break;
1013	}	1061	}
1014	else	1062	else
1015	ht &= l.t[i] == ' '	1063	ht &= l.t[i] == ' '
…		…
1018	if (count)	1066	if (count)
1019	x = ncol - 1;	1067	x = ncol - 1;
1020		1068
1021	// store horizontal tab commands as characters inside the text	1069	// store horizontal tab commands as characters inside the text
1022	// buffer so they can be selected and pasted.	1070	// buffer so they can be selected and pasted.
1023	if (ht && options & Opt_pastableTabs)	1071	if (ht && OPTION (Opt_pastableTabs))
1024	{	1072	{
1025	base_rend = SET_FONT (base_rend, 0);	1073	base_rend = SET_FONT (base_rend, 0);
1026		1074
1027	if (!l.is_longer ()) /* XXX: think about this */	1075	l.touch (x);
1028	max_it (l.l, x);
1029		1076
1030	i = screen.cur.col;	1077	i = screen.cur.col;
1031		1078
1032	l.t[i] = '\t';	1079	l.t[i] = '\t';
1033	l.r[i] = base_rend;	1080	l.r[i] = base_rend;
…		…
1064	* Move cursor left in row. If we're at the left boundary, shift everything	1111	* Move cursor left in row. If we're at the left boundary, shift everything
1065	* in that row right. Clear left column.	1112	* in that row right. Clear left column.
1066	*/	1113	*/
1067	#if ENABLE_FRILLS	1114	#if ENABLE_FRILLS
1068	void	1115	void
1069	rxvt_term::scr_backindex ()	1116	rxvt_term::scr_backindex () NOTHROW
1070	{	1117	{
1071	if (screen.cur.col > 0)	1118	if (screen.cur.col > 0)
1072	scr_gotorc (0, -1, R_RELATIVE | C_RELATIVE);	1119	scr_gotorc (0, -1, R_RELATIVE | C_RELATIVE);
1073	else	1120	else
1074	scr_insdel_chars (1, INSERT);	1121	scr_insdel_chars (1, INSERT);
…		…
1081	* Move cursor right in row. If we're at the right boundary, shift everything	1128	* Move cursor right in row. If we're at the right boundary, shift everything
1082	* in that row left. Clear right column.	1129	* in that row left. Clear right column.
1083	*/	1130	*/
1084	#if ENABLE_FRILLS	1131	#if ENABLE_FRILLS
1085	void	1132	void
1086	rxvt_term::scr_forwardindex ()	1133	rxvt_term::scr_forwardindex () NOTHROW
1087	{	1134	{
1088	if (screen.cur.col < ncol - 1)	1135	if (screen.cur.col < ncol - 1)
1089	scr_gotorc (0, 1, R_RELATIVE | C_RELATIVE);	1136	scr_gotorc (0, 1, R_RELATIVE | C_RELATIVE);
1090	else	1137	else
1091	{	1138	{
1092	if (ROW(screen.cur.row).is_longer ()) //TODO//FIXME//LEN	1139	line_t &l = ROW(screen.cur.row);
1093	ROW(screen.cur.row).l = ncol;	1140
		1141	l.touch ();
		1142	l.is_longer (0);
1094		1143
1095	scr_gotorc (0, 0, R_RELATIVE);	1144	scr_gotorc (0, 0, R_RELATIVE);
1096	scr_insdel_chars (1, DELETE);	1145	scr_insdel_chars (1, DELETE);
1097	scr_gotorc (0, ncol - 1, R_RELATIVE);	1146	scr_gotorc (0, ncol - 1, R_RELATIVE);
1098	}	1147	}
…		…
1102	/* ------------------------------------------------------------------------- */	1151	/* ------------------------------------------------------------------------- */
1103	/*	1152	/*
1104	* Goto Row/Column	1153	* Goto Row/Column
1105	*/	1154	*/
1106	void	1155	void
1107	rxvt_term::scr_gotorc (int row, int col, int relative)	1156	rxvt_term::scr_gotorc (int row, int col, int relative) NOTHROW
1108	{	1157	{
1109	want_refresh = 1;	1158	want_refresh = 1;
1110	ZERO_SCROLLBACK ();	1159	ZERO_SCROLLBACK ();
1111		1160
1112	screen.cur.col = relative & C_RELATIVE ? screen.cur.col + col : col;	1161	screen.cur.col = relative & C_RELATIVE ? screen.cur.col + col : col;
…		…
1150	/* ------------------------------------------------------------------------- */	1199	/* ------------------------------------------------------------------------- */
1151	/*	1200	/*
1152	* direction should be UP or DN	1201	* direction should be UP or DN
1153	*/	1202	*/
1154	void	1203	void
1155	rxvt_term::scr_index (enum page_dirn direction)	1204	rxvt_term::scr_index (enum page_dirn direction) NOTHROW
1156	{	1205	{
1157	int dirn;	1206	int dirn;
1158		1207
1159	want_refresh = 1;	1208	want_refresh = 1;
1160	ZERO_SCROLLBACK ();	1209	ZERO_SCROLLBACK ();
…		…
1179	* XTERM_SEQ: Clear line to right: ESC [ 0 K	1228	* XTERM_SEQ: Clear line to right: ESC [ 0 K
1180	* XTERM_SEQ: Clear line to left : ESC [ 1 K	1229	* XTERM_SEQ: Clear line to left : ESC [ 1 K
1181	* XTERM_SEQ: Clear whole line : ESC [ 2 K	1230	* XTERM_SEQ: Clear whole line : ESC [ 2 K
1182	*/	1231	*/
1183	void	1232	void
1184	rxvt_term::scr_erase_line (int mode)	1233	rxvt_term::scr_erase_line (int mode) NOTHROW
1185	{	1234	{
1186	unsigned int col, num;	1235	unsigned int col, num;
1187		1236
1188	want_refresh = 1;	1237	want_refresh = 1;
1189	ZERO_SCROLLBACK ();	1238	ZERO_SCROLLBACK ();
1190		1239
1191	selection_check (1);	1240	selection_check (1);
1192		1241
1193	line_t &line = ROW(screen.cur.row);	1242	line_t &line = ROW(screen.cur.row);
		1243
		1244	line.touch ();
		1245	line.is_longer (0);
1194		1246
1195	switch (mode)	1247	switch (mode)
1196	{	1248	{
1197	case 0: /* erase to end of line */	1249	case 0: /* erase to end of line */
1198	col = screen.cur.col;	1250	col = screen.cur.col;
…		…
1230	* XTERM_SEQ: Clear screen after cursor : ESC [ 0 J	1282	* XTERM_SEQ: Clear screen after cursor : ESC [ 0 J
1231	* XTERM_SEQ: Clear screen before cursor: ESC [ 1 J	1283	* XTERM_SEQ: Clear screen before cursor: ESC [ 1 J
1232	* XTERM_SEQ: Clear whole screen : ESC [ 2 J	1284	* XTERM_SEQ: Clear whole screen : ESC [ 2 J
1233	*/	1285	*/
1234	void	1286	void
1235	rxvt_term::scr_erase_screen (int mode)	1287	rxvt_term::scr_erase_screen (int mode) NOTHROW
1236	{	1288	{
1237	int num;	1289	int num;
1238	int32_t row;	1290	int32_t row;
1239	rend_t ren;	1291	rend_t ren;
1240	XGCValues gcvalue;	1292	XGCValues gcvalue;
…		…
1293	XChangeGC (display->display, gc, GCForeground, &gcvalue);	1345	XChangeGC (display->display, gc, GCForeground, &gcvalue);
1294	}	1346	}
1295		1347
1296	for (; num--; row++)	1348	for (; num--; row++)
1297	{	1349	{
1298	ROW (row).l = 0;
1299	scr_blank_screen_mem (ROW (row), rstyle);	1350	scr_blank_screen_mem (ROW(row), rstyle);
1300	scr_blank_line (drawn_buf [row], 0, ncol, ren);	1351	scr_blank_line (drawn_buf [row], 0, ncol, ren);
1301	}	1352	}
1302	}	1353	}
1303		1354
1304	#if ENABLE_FRILLS	1355	#if ENABLE_FRILLS
1305	void	1356	void
1306	rxvt_term::scr_erase_savelines ()	1357	rxvt_term::scr_erase_savelines () NOTHROW
1307	{	1358	{
1308	want_refresh = 1;	1359	want_refresh = 1;
1309	ZERO_SCROLLBACK ();	1360	ZERO_SCROLLBACK ();
1310		1361
1311	nsaved = 0;	1362	top_row = 0;
1312	}	1363	}
1313	#endif	1364	#endif
1314		1365
1315	/* ------------------------------------------------------------------------- */	1366	/* ------------------------------------------------------------------------- */
1316	/*	1367	/*
1317	* Fill the screen with `E's	1368	* Fill the screen with `E's
1318	* XTERM_SEQ: Screen Alignment Test: ESC # 8	1369	* XTERM_SEQ: Screen Alignment Test: ESC # 8
1319	*/	1370	*/
1320	void	1371	void
1321	rxvt_term::scr_E ()	1372	rxvt_term::scr_E () NOTHROW
1322	{	1373	{
1323	rend_t fs;	1374	rend_t fs;
1324		1375
1325	want_refresh = 1;	1376	want_refresh = 1;
1326	ZERO_SCROLLBACK ();	1377	ZERO_SCROLLBACK ();
…		…
1337	rend_t *r1 = line.r;	1388	rend_t *r1 = line.r;
1338		1389
1339	for (int j = ncol; j--; )	1390	for (int j = ncol; j--; )
1340	*r1++ = fs;	1391	*r1++ = fs;
1341		1392
1342	line.l = ncol; /* make the `E's selectable */	1393	line.is_longer (0);
		1394	line.touch (ncol);
1343	}	1395	}
1344	}	1396	}
1345		1397
1346	/* ------------------------------------------------------------------------- */	1398	/* ------------------------------------------------------------------------- */
1347	/*	1399	/*
1348	* Insert/Delete <count> lines	1400	* Insert/Delete <count> lines
1349	*/	1401	*/
1350	void	1402	void
1351	rxvt_term::scr_insdel_lines (int count, int insdel)	1403	rxvt_term::scr_insdel_lines (int count, int insdel) NOTHROW
1352	{	1404	{
1353	int end;	1405	int end;
1354		1406
1355	ZERO_SCROLLBACK ();	1407	ZERO_SCROLLBACK ();
1356		1408
…		…
1376	/* ------------------------------------------------------------------------- */	1428	/* ------------------------------------------------------------------------- */
1377	/*	1429	/*
1378	* Insert/Delete <count> characters from the current position	1430	* Insert/Delete <count> characters from the current position
1379	*/	1431	*/
1380	void	1432	void
1381	rxvt_term::scr_insdel_chars (int count, int insdel)	1433	rxvt_term::scr_insdel_chars (int count, int insdel) NOTHROW
1382	{	1434	{
1383	int col, row;	1435	int col, row;
1384	rend_t tr;	1436	rend_t tr;
1385		1437
1386	want_refresh = 1;	1438	want_refresh = 1;
…		…
1395	min_it (count, ncol - screen.cur.col);	1447	min_it (count, ncol - screen.cur.col);
1396		1448
1397	row = screen.cur.row;	1449	row = screen.cur.row;
1398		1450
1399	line_t *line = &ROW(row);	1451	line_t *line = &ROW(row);
		1452
		1453	line->touch ();
		1454	line->is_longer (0);
1400		1455
1401	switch (insdel)	1456	switch (insdel)
1402	{	1457	{
1403	case INSERT:	1458	case INSERT:
1404	for (col = ncol - 1; (col - count) >= screen.cur.col; col--)	1459	for (col = ncol - 1; (col - count) >= screen.cur.col; col--)
1405	{	1460	{
1406	line->t[col] = line->t[col - count];	1461	line->t[col] = line->t[col - count];
1407	line->r[col] = line->r[col - count];	1462	line->r[col] = line->r[col - count];
1408	}	1463	}
1409		1464
1410	if (!line->is_longer ())	1465	line->l = min (line->l + count, ncol);
1411	{
1412	line->l += count;
1413	min_it (line->l, ncol);
1414	}
1415		1466
1416	if (selection.op && current_screen == selection.screen	1467	if (selection.op && current_screen == selection.screen
1417	&& ROWCOL_IN_ROW_AT_OR_AFTER (selection.beg, screen.cur))	1468	&& ROWCOL_IN_ROW_AT_OR_AFTER (selection.beg, screen.cur))
1418	{	1469	{
1419	if (selection.end.row != screen.cur.row	1470	if (selection.end.row != screen.cur.row
…		…
1432		1483
1433	case ERASE:	1484	case ERASE:
1434	screen.cur.col += count; /* don't worry if > ncol */	1485	screen.cur.col += count; /* don't worry if > ncol */
1435	selection_check (1);	1486	selection_check (1);
1436	screen.cur.col -= count;	1487	screen.cur.col -= count;
		1488
		1489	line->l = max (line->l - count, 0);
1437	scr_blank_line (*line, screen.cur.col, count, rstyle);	1490	scr_blank_line (*line, screen.cur.col, count, rstyle);
1438	break;	1491	break;
1439		1492
1440	case DELETE:	1493	case DELETE:
1441	tr = line->r[ncol - 1] & (RS_fgMask | RS_bgMask | RS_baseattrMask);	1494	tr = line->r[ncol - 1] & (RS_fgMask | RS_bgMask | RS_baseattrMask);
…		…
1444	{	1497	{
1445	line->t[col] = line->t[col + count];	1498	line->t[col] = line->t[col + count];
1446	line->r[col] = line->r[col + count];	1499	line->r[col] = line->r[col + count];
1447	}	1500	}
1448		1501
		1502	line->l = max (line->l - count, 0);
1449	scr_blank_line (*line, ncol - count, count, tr);	1503	scr_blank_line (*line, ncol - count, count, tr);
1450
1451	if (line->is_longer ()) /* break line continuation */
1452	line->l = ncol;
1453
1454	line->l = max (line->l - count, 0);
1455		1504
1456	if (selection.op && current_screen == selection.screen	1505	if (selection.op && current_screen == selection.screen
1457	&& ROWCOL_IN_ROW_AT_OR_AFTER (selection.beg, screen.cur))	1506	&& ROWCOL_IN_ROW_AT_OR_AFTER (selection.beg, screen.cur))
1458	{	1507	{
1459	if (selection.end.row != screen.cur.row	1508	if (selection.end.row != screen.cur.row
…		…
1477	/*	1526	/*
1478	* Set the scrolling region	1527	* Set the scrolling region
1479	* XTERM_SEQ: Set region <top> - <bot> inclusive: ESC [ <top> ; <bot> r	1528	* XTERM_SEQ: Set region <top> - <bot> inclusive: ESC [ <top> ; <bot> r
1480	*/	1529	*/
1481	void	1530	void
1482	rxvt_term::scr_scroll_region (int top, int bot)	1531	rxvt_term::scr_scroll_region (int top, int bot) NOTHROW
1483	{	1532	{
1484	max_it (top, 0);	1533	max_it (top, 0);
1485	min_it (bot, nrow - 1);	1534	min_it (bot, nrow - 1);
1486		1535
1487	if (top > bot)	1536	if (top > bot)
…		…
1497	* Make the cursor visible/invisible	1546	* Make the cursor visible/invisible
1498	* XTERM_SEQ: Make cursor visible : ESC [ ? 25 h	1547	* XTERM_SEQ: Make cursor visible : ESC [ ? 25 h
1499	* XTERM_SEQ: Make cursor invisible: ESC [ ? 25 l	1548	* XTERM_SEQ: Make cursor invisible: ESC [ ? 25 l
1500	*/	1549	*/
1501	void	1550	void
1502	rxvt_term::scr_cursor_visible (int mode)	1551	rxvt_term::scr_cursor_visible (int mode) NOTHROW
1503	{	1552	{
1504	want_refresh = 1;	1553	want_refresh = 1;
1505		1554
1506	if (mode)	1555	if (mode)
1507	screen.flags |= Screen_VisibleCursor;	1556	screen.flags |= Screen_VisibleCursor;
…		…
1514	* Set/unset automatic wrapping	1563	* Set/unset automatic wrapping
1515	* XTERM_SEQ: Set Wraparound : ESC [ ? 7 h	1564	* XTERM_SEQ: Set Wraparound : ESC [ ? 7 h
1516	* XTERM_SEQ: Unset Wraparound: ESC [ ? 7 l	1565	* XTERM_SEQ: Unset Wraparound: ESC [ ? 7 l
1517	*/	1566	*/
1518	void	1567	void
1519	rxvt_term::scr_autowrap (int mode)	1568	rxvt_term::scr_autowrap (int mode) NOTHROW
1520	{	1569	{
1521	if (mode)	1570	if (mode)
1522	screen.flags |= Screen_Autowrap;	1571	screen.flags |= Screen_Autowrap;
1523	else	1572	else
1524	screen.flags &= ~(Screen_Autowrap | Screen_WrapNext);	1573	screen.flags &= ~(Screen_Autowrap | Screen_WrapNext);
…		…
1533	* and the cursor cannot be moved outside.	1582	* and the cursor cannot be moved outside.
1534	* XTERM_SEQ: Set Absolute: ESC [ ? 6 h	1583	* XTERM_SEQ: Set Absolute: ESC [ ? 6 h
1535	* XTERM_SEQ: Set Relative: ESC [ ? 6 l	1584	* XTERM_SEQ: Set Relative: ESC [ ? 6 l
1536	*/	1585	*/
1537	void	1586	void
1538	rxvt_term::scr_relative_origin (int mode)	1587	rxvt_term::scr_relative_origin (int mode) NOTHROW
1539	{	1588	{
1540	if (mode)	1589	if (mode)
1541	screen.flags |= Screen_Relative;	1590	screen.flags |= Screen_Relative;
1542	else	1591	else
1543	screen.flags &= ~Screen_Relative;	1592	screen.flags &= ~Screen_Relative;
…		…
1550	* Set insert/replace mode	1599	* Set insert/replace mode
1551	* XTERM_SEQ: Set Insert mode : ESC [ ? 4 h	1600	* XTERM_SEQ: Set Insert mode : ESC [ ? 4 h
1552	* XTERM_SEQ: Set Replace mode: ESC [ ? 4 l	1601	* XTERM_SEQ: Set Replace mode: ESC [ ? 4 l
1553	*/	1602	*/
1554	void	1603	void
1555	rxvt_term::scr_insert_mode (int mode)	1604	rxvt_term::scr_insert_mode (int mode) NOTHROW
1556	{	1605	{
1557	if (mode)	1606	if (mode)
1558	screen.flags |= Screen_Insert;	1607	screen.flags |= Screen_Insert;
1559	else	1608	else
1560	screen.flags &= ~Screen_Insert;	1609	screen.flags &= ~Screen_Insert;
…		…
1566	* XTERM_SEQ: Set tab at current column : ESC H	1615	* XTERM_SEQ: Set tab at current column : ESC H
1567	* XTERM_SEQ: Clear tab at current column: ESC [ 0 g	1616	* XTERM_SEQ: Clear tab at current column: ESC [ 0 g
1568	* XTERM_SEQ: Clear all tabs : ESC [ 3 g	1617	* XTERM_SEQ: Clear all tabs : ESC [ 3 g
1569	*/	1618	*/
1570	void	1619	void
1571	rxvt_term::scr_set_tab (int mode)	1620	rxvt_term::scr_set_tab (int mode) NOTHROW
1572	{	1621	{
1573	if (mode < 0)	1622	if (mode < 0)
1574	memset (tabs, 0, ncol * sizeof (char));	1623	memset (tabs, 0, ncol * sizeof (char));
1575	else if (screen.cur.col < ncol)	1624	else if (screen.cur.col < ncol)
1576	tabs[screen.cur.col] = (mode ? 1 : 0);	1625	tabs [screen.cur.col] = !!mode;
1577	}	1626	}
1578		1627
1579	/* ------------------------------------------------------------------------- */	1628	/* ------------------------------------------------------------------------- */
1580	/*	1629	/*
1581	* Set reverse/normal video	1630	* Set reverse/normal video
1582	* XTERM_SEQ: Reverse video: ESC [ ? 5 h	1631	* XTERM_SEQ: Reverse video: ESC [ ? 5 h
1583	* XTERM_SEQ: Normal video : ESC [ ? 5 l	1632	* XTERM_SEQ: Normal video : ESC [ ? 5 l
1584	*/	1633	*/
1585	void	1634	void
1586	rxvt_term::scr_rvideo_mode (int mode)	1635	rxvt_term::scr_rvideo_mode (bool on) NOTHROW
1587	{	1636	{
1588	XGCValues gcvalue;	1637	rvideo_mode = on;
1589		1638
		1639	#ifndef NO_BELL
		1640	on ^= rvideo_bell;
		1641	#endif
		1642
1590	if (rvideo != mode)	1643	if (rvideo_state != on)
1591	{	1644	{
1592	rvideo = mode;	1645	rvideo_state = on;
		1646
1593	::swap (pix_colors[Color_fg], pix_colors[Color_bg]);	1647	::swap (pix_colors[Color_fg], pix_colors[Color_bg]);
1594	#if XPM_BACKGROUND	1648	#if XPM_BACKGROUND
1595	if (bgPixmap.pixmap == None)	1649	if (bgPixmap.pixmap == None)
1596	#endif	1650	#endif
1597	#if TRANSPARENT	1651	#if TRANSPARENT
1598	if (! (options & Opt_transparent) || am_transparent == 0)	1652	if (!OPTION (Opt_transparent) || am_transparent == 0)
1599	#endif	1653	#endif
1600	XSetWindowBackground (display->display, vt,	1654	XSetWindowBackground (display->display, vt, pix_colors[Color_bg]);
1601	pix_colors[Color_bg]);
1602		1655
		1656	XGCValues gcvalue;
1603	gcvalue.foreground = pix_colors[Color_fg];	1657	gcvalue.foreground = pix_colors[Color_fg];
1604	gcvalue.background = pix_colors[Color_bg];	1658	gcvalue.background = pix_colors[Color_bg];
1605	XChangeGC (display->display, gc, GCBackground | GCForeground,	1659	XChangeGC (display->display, gc, GCBackground | GCForeground, &gcvalue);
1606	&gcvalue);	1660
1607	scr_clear ();	1661	scr_clear ();
1608	scr_touch (true);	1662	scr_touch (true);
1609	}	1663	}
1610	}	1664	}
1611		1665
…		…
1613	/*	1667	/*
1614	* Report current cursor position	1668	* Report current cursor position
1615	* XTERM_SEQ: Report position: ESC [ 6 n	1669	* XTERM_SEQ: Report position: ESC [ 6 n
1616	*/	1670	*/
1617	void	1671	void
1618	rxvt_term::scr_report_position ()	1672	rxvt_term::scr_report_position () NOTHROW
1619	{	1673	{
1620	tt_printf ("\033[%d;%dR", screen.cur.row + 1, screen.cur.col + 1);	1674	tt_printf ("\033[%d;%dR", screen.cur.row + 1, screen.cur.col + 1);
1621	}	1675	}
1622		1676
1623	/* ------------------------------------------------------------------------- *	1677	/* ------------------------------------------------------------------------- *
…		…
1626		1680
1627	/*	1681	/*
1628	* Set font style	1682	* Set font style
1629	*/	1683	*/
1630	void	1684	void
1631	rxvt_term::set_font_style ()	1685	rxvt_term::set_font_style () NOTHROW
1632	{	1686	{
		1687	#if 0
1633	switch (charsets[screen.charset])	1688	switch (charsets [screen.charset])
1634	{	1689	{
1635	case '0': /* DEC Special Character & Line Drawing Set */	1690	case '0': /* DEC Special Character & Line Drawing Set */
1636	break;	1691	break;
1637	case 'A': /* United Kingdom (UK) */	1692	case 'A': /* United Kingdom (UK) */
1638	break;	1693	break;
…		…
1645	case 'C': /* Finnish character set */	1700	case 'C': /* Finnish character set */
1646	break;	1701	break;
1647	case 'K': /* German character set */	1702	case 'K': /* German character set */
1648	break;	1703	break;
1649	}	1704	}
		1705	#endif
1650	}	1706	}
1651		1707
1652	/* ------------------------------------------------------------------------- */	1708	/* ------------------------------------------------------------------------- */
1653	/*	1709	/*
1654	* Choose a font	1710	* Choose a font
…		…
1656	* XTERM_SEQ: Invoke G1 character set: CTRL-N	1712	* XTERM_SEQ: Invoke G1 character set: CTRL-N
1657	* XTERM_SEQ: Invoke G2 character set: ESC N	1713	* XTERM_SEQ: Invoke G2 character set: ESC N
1658	* XTERM_SEQ: Invoke G3 character set: ESC O	1714	* XTERM_SEQ: Invoke G3 character set: ESC O
1659	*/	1715	*/
1660	void	1716	void
1661	rxvt_term::scr_charset_choose (int set)	1717	rxvt_term::scr_charset_choose (int set) NOTHROW
1662	{	1718	{
1663	screen.charset = set;	1719	screen.charset = set;
1664	set_font_style ();	1720	set_font_style ();
1665	}	1721	}
1666		1722
…		…
1672	* XTERM_SEQ: Set G2 character set: ESC * <C>	1728	* XTERM_SEQ: Set G2 character set: ESC * <C>
1673	* XTERM_SEQ: Set G3 character set: ESC + <C>	1729	* XTERM_SEQ: Set G3 character set: ESC + <C>
1674	* See set_font_style for possible values for <C>	1730	* See set_font_style for possible values for <C>
1675	*/	1731	*/
1676	void	1732	void
1677	rxvt_term::scr_charset_set (int set, unsigned int ch)	1733	rxvt_term::scr_charset_set (int set, unsigned int ch) NOTHROW
1678	{	1734	{
1679	charsets[set] = (unsigned char)ch;	1735	charsets[set] = (unsigned char)ch;
1680	set_font_style ();	1736	set_font_style ();
1681	}	1737	}
1682		1738
…		…
1687		1743
1688	/*	1744	/*
1689	* refresh matching text.	1745	* refresh matching text.
1690	*/	1746	*/
1691	bool	1747	bool
1692	rxvt_term::scr_refresh_rend (rend_t mask, rend_t value)	1748	rxvt_term::scr_refresh_rend (rend_t mask, rend_t value) NOTHROW
1693	{	1749	{
1694	bool found = false;	1750	bool found = false;
1695		1751
1696	for (int i = 0; i < nrow; i++)	1752	for (int i = 0; i < nrow; i++)
1697	{	1753	{
…		…
1717	PART_END,	1773	PART_END,
1718	RC_COUNT	1774	RC_COUNT
1719	};	1775	};
1720		1776
1721	void	1777	void
1722	rxvt_term::scr_expose (int x, int y, int ewidth, int eheight, bool refresh)	1778	rxvt_term::scr_expose (int x, int y, int ewidth, int eheight, bool refresh) NOTHROW
1723	{	1779	{
1724	int i;	1780	int i;
1725	row_col_t rc[RC_COUNT];	1781	row_col_t rc[RC_COUNT];
1726		1782
1727	if (!drawn_buf) /* sanity check */	1783	if (!drawn_buf) /* sanity check */
…		…
1750	}	1806	}
1751		1807
1752	for (i = rc[PART_BEG].row; i <= rc[PART_END].row; i++)	1808	for (i = rc[PART_BEG].row; i <= rc[PART_END].row; i++)
1753	fill_text (&drawn_buf[i].t[rc[PART_BEG].col], 0, rc[PART_END].col - rc[PART_BEG].col + 1);	1809	fill_text (&drawn_buf[i].t[rc[PART_BEG].col], 0, rc[PART_END].col - rc[PART_BEG].col + 1);
1754		1810
		1811	num_scr_allow = 0;
		1812
1755	if (refresh)	1813	if (refresh)
1756	scr_refresh (SLOW_REFRESH);	1814	scr_refresh ();
1757	}	1815	}
1758		1816
1759	/* ------------------------------------------------------------------------- */	1817	/* ------------------------------------------------------------------------- */
1760	/*	1818	/*
1761	* Refresh the entire screen	1819	* Refresh the entire screen
1762	*/	1820	*/
1763	void	1821	void
1764	rxvt_term::scr_touch (bool refresh)	1822	rxvt_term::scr_touch (bool refresh) NOTHROW
1765	{	1823	{
1766	scr_expose (0, 0, width, height, refresh);	1824	scr_expose (0, 0, width, height, refresh);
1767	}	1825	}
1768		1826
1769	/* ------------------------------------------------------------------------- */	1827	/* ------------------------------------------------------------------------- */
1770	/*	1828	/*
1771	* Move the display so that the line represented by scrollbar value Y is at	1829	* Move the display so that the line represented by scrollbar value Y is at
1772	* the top of the screen	1830	* the top of the screen
1773	*/	1831	*/
1774	int	1832	void
1775	rxvt_term::scr_move_to (int y, int len)	1833	rxvt_term::scr_move_to (int y, int len) NOTHROW
1776	{	1834	{
1777	long p = 0;	1835	scr_changeview ((top_row - nrow) * (len - y) / len + (nrow - 1));
1778	unsigned int oldviewstart;
1779
1780	oldviewstart = view_start;
1781
1782	if (y < len)
1783	{
1784	p = (nrow + nsaved) * (len - y) / len;
1785	p -= (long) (nrow - 1);
1786	p = max (p, 0);
1787	}
1788
1789	view_start = (unsigned int)min (p, nsaved);
1790
1791	return scr_changeview (oldviewstart);
1792	}	1836	}
1793		1837
1794	/* ------------------------------------------------------------------------- */	1838	/* ------------------------------------------------------------------------- */
1795	/*	1839	/*
1796	* Page the screen up/down nlines	1840	* Page the screen up/down nlines
1797	* direction should be UP or DN	1841	* direction should be UP or DN
1798	*/	1842	*/
1799	int	1843	bool
1800	rxvt_term::scr_page (enum page_dirn direction, int nlines)	1844	rxvt_term::scr_page (enum page_dirn direction, int nlines) NOTHROW
1801	{	1845	{
1802	int n;	1846	int new_view_start =
1803	unsigned int oldviewstart;
1804
1805	oldviewstart = view_start;
1806
1807	if (direction == UP)
1808	{
1809	n = view_start + nlines;
1810	view_start = min (n, nsaved);
1811	}
1812	else
1813	{
1814	n = view_start - nlines;	1847	direction == UP ? view_start - nlines
1815	view_start = max (n, 0);	1848	: view_start + nlines;
1816	}
1817		1849
1818	return scr_changeview (oldviewstart);	1850	return scr_changeview (new_view_start);
1819	}	1851	}
1820		1852
1821	int	1853	bool
1822	rxvt_term::scr_changeview (unsigned int oldviewstart)	1854	rxvt_term::scr_changeview (int new_view_start) NOTHROW
1823	{	1855	{
		1856	clamp_it (new_view_start, top_row, 0);
		1857
1824	if (view_start != oldviewstart)	1858	if (new_view_start == view_start)
1825	{	1859	return false;
		1860
		1861	num_scr += new_view_start - view_start;
		1862	view_start = new_view_start;
1826	want_refresh = 1;	1863	want_refresh = 1;
1827	num_scr -= (view_start - oldviewstart);
1828	}
1829		1864
1830	return (int) (view_start - oldviewstart);	1865	HOOK_INVOKE ((this, HOOK_VIEW_CHANGE, DT_INT, view_start, DT_END));
1831	}
1832		1866
1833	/* ------------------------------------------------------------------------- */	1867	return true;
		1868	}
		1869
		1870	#ifndef NO_BELL
1834	void	1871	void
		1872	rxvt_term::bell_cb (time_watcher &w)
		1873	{
		1874	rvideo_bell = false;
		1875	scr_rvideo_mode (rvideo_mode);
		1876	}
		1877	#endif
		1878
		1879	/* ------------------------------------------------------------------------- */
		1880	void
1835	rxvt_term::scr_bell ()	1881	rxvt_term::scr_bell () NOTHROW
1836	{	1882	{
1837	#ifndef NO_BELL	1883	#ifndef NO_BELL
1838		1884
1839	# ifndef NO_MAPALERT	1885	# ifndef NO_MAPALERT
1840	# ifdef MAPALERT_OPTION	1886	# ifdef MAPALERT_OPTION
1841	if (options & Opt_mapAlert)	1887	if (OPTION (Opt_mapAlert))
1842	# endif	1888	# endif
1843	XMapWindow (display->display, parent[0]);	1889	XMapWindow (display->display, parent[0]);
1844	# endif	1890	# endif
1845		1891
1846	if (options & Opt_visualBell)	1892	if (OPTION (Opt_visualBell))
1847	{	1893	{
1848	scr_rvideo_mode (!rvideo); /* refresh also done */	1894	rvideo_bell = true;
1849	rxvt_usleep (VISUAL_BELL_DURATION);	1895	scr_rvideo_mode (rvideo_mode);
1850	scr_rvideo_mode (!rvideo); /* refresh also done */	1896	display->flush ();
		1897
		1898	bell_ev.start (NOW + VISUAL_BELL_DURATION);
1851	}	1899	}
1852	else	1900	else
1853	XBell (display->display, 0);	1901	XBell (display->display, 0);
1854		1902
1855	#endif	1903	#endif
1856	}	1904	}
1857		1905
1858	/* ------------------------------------------------------------------------- */	1906	/* ------------------------------------------------------------------------- */
1859	/* ARGSUSED */	1907	/* ARGSUSED */
1860	void	1908	void
1861	rxvt_term::scr_printscreen (int fullhist)	1909	rxvt_term::scr_printscreen (int fullhist) NOTHROW
1862	{	1910	{
1863	#ifdef PRINTPIPE	1911	#ifdef PRINTPIPE
1864	int nrows, row_start;	1912	int nrows, row_start;
1865	FILE *fd;	1913	FILE *fd;
1866		1914
1867	if ((fd = popen_printer ()) == NULL)	1915	if ((fd = popen_printer ()) == NULL)
1868	return;	1916	return;
1869		1917
1870	if (fullhist)	1918	if (fullhist)
1871	{	1919	{
1872	nrows = nrow + nsaved;	1920	nrows = nrow - top_row;
1873	row_start = -nsaved;	1921	row_start = top_row;
1874	}	1922	}
1875	else	1923	else
1876	{	1924	{
1877	nrows = nrow;	1925	nrows = nrow;
1878	row_start = -view_start;	1926	row_start = view_start;
1879	}	1927	}
1880		1928
1881	wctomb (0, 0);	1929	wctomb (0, 0);
1882		1930
1883	for (int r1 = 0; r1 < nrows; r1++)	1931	for (int r1 = 0; r1 < nrows; r1++)
…		…
1915	* Refresh the screen	1963	* Refresh the screen
1916	* drawn_text/drawn_rend contain the screen information before the update.	1964	* drawn_text/drawn_rend contain the screen information before the update.
1917	* screen.text/screen.rend contain what the screen will change to.	1965	* screen.text/screen.rend contain what the screen will change to.
1918	*/	1966	*/
1919	void	1967	void
1920	rxvt_term::scr_refresh (unsigned char refresh_type)	1968	rxvt_term::scr_refresh () NOTHROW
1921	{	1969	{
1922	unsigned char must_clear, /* use draw_string not draw_image_string */	1970	unsigned char must_clear, /* use draw_string not draw_image_string */
1923	showcursor; /* show the cursor */	1971	showcursor; /* show the cursor */
1924	int16_t col, row, /* column/row we're processing */	1972	int16_t col, row, /* column/row we're processing */
1925	ocrow; /* old cursor row */	1973	ocrow; /* old cursor row */
…		…
1942		1990
1943	#if XPM_BACKGROUND	1991	#if XPM_BACKGROUND
1944	must_clear |= bgPixmap.pixmap != None;	1992	must_clear |= bgPixmap.pixmap != None;
1945	#endif	1993	#endif
1946	#if TRANSPARENT	1994	#if TRANSPARENT
1947	must_clear |= (options & Opt_transparent) && am_transparent;	1995	must_clear |= OPTION (Opt_transparent) && am_transparent;
1948	#endif	1996	#endif
1949	ocrow = oldcursor.row; /* is there an old outline cursor on screen? */	1997	ocrow = oldcursor.row; /* is there an old outline cursor on screen? */
1950		1998
1951	/*	1999	/*
1952	* B: reverse any characters which are selected	2000	* B: reverse any characters which are selected
…		…
1976		2024
1977	crp = &ROW(screen.cur.row).r[col];	2025	crp = &ROW(screen.cur.row).r[col];
1978		2026
1979	if (showcursor && focus)	2027	if (showcursor && focus)
1980	{	2028	{
1981	if (options & Opt_cursorUnderline)	2029	if (OPTION (Opt_cursorUnderline))
1982	*crp ^= RS_Uline;	2030	*crp ^= RS_Uline;
1983	else	2031	else
1984	{	2032	{
1985	*crp ^= RS_RVid;	2033	*crp ^= RS_RVid;
1986		2034
…		…
2011		2059
2012	/* make sure no outline cursor is left around */	2060	/* make sure no outline cursor is left around */
2013	setoldcursor = 0;	2061	setoldcursor = 0;
2014	if (ocrow != -1)	2062	if (ocrow != -1)
2015	{	2063	{
2016	if (screen.cur.row + view_start != ocrow	2064	if (screen.cur.row - view_start != ocrow
2017	|| screen.cur.col != oldcursor.col)	2065	|| screen.cur.col != oldcursor.col)
2018	{	2066	{
2019	if (ocrow < nrow	2067	if (ocrow < nrow
2020	&& oldcursor.col < ncol)	2068	&& oldcursor.col < ncol)
2021	drawn_buf[ocrow].r[oldcursor.col] ^= (RS_RVid | RS_Uline);	2069	drawn_buf[ocrow].r[oldcursor.col] ^= (RS_RVid | RS_Uline);
…		…
2029	else if (!focus)	2077	else if (!focus)
2030	setoldcursor = 1;	2078	setoldcursor = 1;
2031		2079
2032	if (setoldcursor)	2080	if (setoldcursor)
2033	{	2081	{
2034	if (screen.cur.row + view_start >= nrow)	2082	if (screen.cur.row - view_start >= nrow)
2035	oldcursor.row = -1;	2083	oldcursor.row = -1;
2036	else	2084	else
2037	{	2085	{
2038	oldcursor.row = screen.cur.row + view_start;	2086	oldcursor.row = screen.cur.row - view_start;
2039	oldcursor.col = screen.cur.col;	2087	oldcursor.col = screen.cur.col;
2040	}	2088	}
2041	}	2089	}
2042	}	2090	}
2043		2091
		2092	HOOK_INVOKE ((this, HOOK_REFRESH_BEGIN, DT_END));
2044	#if ENABLE_OVERLAY	2093	#if ENABLE_OVERLAY
2045	scr_swap_overlay ();	2094	scr_swap_overlay ();
2046	#endif	2095	#endif
2047		2096
2048	#ifndef NO_SLOW_LINK_SUPPORT	2097	#ifndef NO_SLOW_LINK_SUPPORT
2049	/*	2098	/*
2050	* D: CopyArea pass - very useful for slower links	2099	* D: CopyArea pass - very useful for slower links
2051	* This has been deliberately kept simple.	2100	* This has been deliberately kept simple.
2052	*/	2101	*/
2053	i = num_scr;
2054	if (!display->is_local	2102	if (!display->is_local
2055	&& refresh_type == FAST_REFRESH && num_scr_allow && num_scr	2103	&& refresh_type == FAST_REFRESH && num_scr_allow && num_scr
2056	&& abs (num_scr) < nrow && !must_clear)	2104	&& abs (num_scr) < nrow && !must_clear)
2057	{	2105	{
2058	int16_t nits;	2106	int16_t nits;
2059	int j;	2107	int j;
2060	int len, wlen;	2108	int len, wlen;
		2109	dLocal (int, num_scr);
2061		2110
2062	j = nrow;	2111	j = nrow;
2063	wlen = len = -1;	2112	wlen = len = -1;
2064	row = i > 0 ? 0 : j - 1;	2113	row = i > 0 ? 0 : j - 1;
2065	for (; j-- >= 0; row += (i > 0 ? 1 : -1))	2114	for (; j-- >= 0; row += (i > 0 ? 1 : -1))
2066	{	2115	{
2067	if (row + i >= 0 && row + i < nrow && row + i != ocrow)	2116	if (row + i >= 0 && row + i < nrow && row + i != ocrow)
2068	{	2117	{
2069	line_t s = ROW(row - view_start);	2118	line_t s = ROW(view_start + row);
2070	line_t d = drawn_buf[row];	2119	line_t d = drawn_buf[row];
2071	line_t d2 = drawn_buf[row + i];	2120	line_t d2 = drawn_buf[row + i];
2072		2121
2073	for (nits = 0, col = ncol; col--; )	2122	for (nits = 0, col = ncol; col--; )
2074	if (s.t[col] != d2.t[col] || s.r[col] != d2.r[col])	2123	if (s.t[col] != d2.t[col] || s.r[col] != d2.r[col])
…		…
2098	if (wlen < len)	2147	if (wlen < len)
2099	::swap (wlen, len);	2148	::swap (wlen, len);
2100		2149
2101	XCopyArea (display->display, vt, vt,	2150	XCopyArea (display->display, vt, vt,
2102	gc, 0, Row2Pixel (len + i),	2151	gc, 0, Row2Pixel (len + i),
2103	(unsigned int)TermWin_TotalWidth (),	2152	(unsigned int)this->width,
2104	(unsigned int)Height2Pixel (wlen - len + 1),	2153	(unsigned int)Height2Pixel (wlen - len + 1),
2105	0, Row2Pixel (len));	2154	0, Row2Pixel (len));
2106	len = -1;	2155	len = -1;
2107	}	2156	}
2108	}	2157	}
…		…
2112	/*	2161	/*
2113	* E: main pass across every character	2162	* E: main pass across every character
2114	*/	2163	*/
2115	for (row = 0; row < nrow; row++)	2164	for (row = 0; row < nrow; row++)
2116	{	2165	{
2117	text_t *stp = ROW(row - view_start).t;	2166	text_t *stp = ROW(view_start + row).t;
2118	rend_t *srp = ROW(row - view_start).r;	2167	rend_t *srp = ROW(view_start + row).r;
2119	text_t *dtp = drawn_buf[row].t;	2168	text_t *dtp = drawn_buf[row].t;
2120	rend_t *drp = drawn_buf[row].r;	2169	rend_t *drp = drawn_buf[row].r;
2121		2170
2122	/*	2171	/*
2123	* E2: OK, now the real pass	2172	* E2: OK, now the real pass
…		…
2311	} /* for (row....) */	2360	} /* for (row....) */
2312		2361
2313	#if ENABLE_OVERLAY	2362	#if ENABLE_OVERLAY
2314	scr_swap_overlay ();	2363	scr_swap_overlay ();
2315	#endif	2364	#endif
		2365	HOOK_INVOKE ((this, HOOK_REFRESH_END, DT_END));
2316		2366
2317	/*	2367	/*
2318	* G: cleanup cursor and display outline cursor if necessary	2368	* G: cleanup cursor and display outline cursor if necessary
2319	*/	2369	*/
2320	if (showcursor)	2370	if (showcursor)
2321	{	2371	{
2322	if (focus)	2372	if (focus)
2323	{	2373	{
2324	if (options & Opt_cursorUnderline)	2374	if (OPTION (Opt_cursorUnderline))
2325	*crp ^= RS_Uline;	2375	*crp ^= RS_Uline;
2326	else	2376	else
2327	{	2377	{
2328	*crp ^= RS_RVid;	2378	*crp ^= RS_RVid;
2329	#ifndef NO_CURSORCOLOR	2379	#ifndef NO_CURSORCOLOR
…		…
2359	/*	2409	/*
2360	* H: cleanup selection	2410	* H: cleanup selection
2361	*/	2411	*/
2362	scr_reverse_selection ();	2412	scr_reverse_selection ();
2363		2413
2364	if (refresh_type & SMOOTH_REFRESH)
2365	XFlush (display->display);
2366
2367	num_scr = 0;	2414	num_scr = 0;
2368	num_scr_allow = 1;	2415	num_scr_allow = 1;
2369	}	2416	}
2370		2417
2371	void	2418	void
2372	rxvt_term::scr_remap_chars (const line_t &l)	2419	rxvt_term::scr_remap_chars (line_t &l) NOTHROW
2373	{	2420	{
2374	if (!l.t)	2421	if (!l.t)
2375	return;	2422	return;
2376		2423
		2424	l.touch (); // maybe a bit of an overkill, but it's not performance-relevant
		2425
2377	for (int i = ncol; i--; )	2426	for (int i = ncol; i--; )
2378	l.r[i] = SET_FONT (l.r[i], FONTSET (l.r[i])->find_font (l.t[i]));	2427	l.r[i] = SET_FONT (l.r[i], FONTSET (l.r[i])->find_font (l.t[i]));
2379	}	2428	}
2380		2429
2381	void	2430	void
2382	rxvt_term::scr_remap_chars ()	2431	rxvt_term::scr_remap_chars () NOTHROW
2383	{	2432	{
2384	for (int i = total_rows; i--; )	2433	for (int i = total_rows; i--; )
2385	scr_remap_chars (row_buf [i]);	2434	scr_remap_chars (row_buf [i]);
2386		2435
2387	for (int i = nrow; i--; )	2436	for (int i = nrow; i--; )
…		…
2390	scr_remap_chars (swap_buf [i]);	2439	scr_remap_chars (swap_buf [i]);
2391	}	2440	}
2392	}	2441	}
2393		2442
2394	void	2443	void
2395	rxvt_term::scr_recolour ()	2444	rxvt_term::scr_recolour () NOTHROW
2396	{	2445	{
2397	if (1	2446	if (1
2398	#if TRANSPARENT	2447	#if TRANSPARENT
2399	&& !am_transparent	2448	&& !am_transparent
2400	#endif	2449	#endif
…		…
2421	want_refresh = 1;	2470	want_refresh = 1;
2422	}	2471	}
2423		2472
2424	/* ------------------------------------------------------------------------- */	2473	/* ------------------------------------------------------------------------- */
2425	void	2474	void
2426	rxvt_term::scr_clear (bool really)	2475	rxvt_term::scr_clear (bool really) NOTHROW
2427	{	2476	{
2428	if (!mapped)	2477	if (!mapped)
2429	return;	2478	return;
2430		2479
2431	num_scr_allow = 0;	2480	num_scr_allow = 0;
…		…
2433		2482
2434	if (really)	2483	if (really)
2435	XClearWindow (display->display, vt);	2484	XClearWindow (display->display, vt);
2436	}	2485	}
2437		2486
2438	/* ------------------------------------------------------------------------- */
2439	void	2487	void
		2488	rxvt_term::scr_xor_rect (int beg_row, int beg_col, int end_row, int end_col, rend_t rstyle1, rend_t rstyle2) NOTHROW
		2489	{
		2490	int view_end = view_start + nrow;
		2491	int row, col;
		2492
		2493	for (row = max (beg_row, view_start); row <= min (end_row, view_end); row++)
		2494	{
		2495	text_t *stp = ROW(row).t;
		2496	rend_t *srp = ROW(row).r;
		2497
		2498	for (col = beg_col; col < end_col; col++)
		2499	srp[col] ^= rstyle1;
		2500
		2501	while (col-- > beg_col && (stp[col] == NOCHAR || unicode::is_space (stp[col])))
		2502	srp[col] ^= rstyle2;
		2503
		2504	if (++col < end_col)
		2505	srp[col] ^= rstyle2;
		2506	}
		2507	}
		2508
		2509	void
		2510	rxvt_term::scr_xor_span (int beg_row, int beg_col, int end_row, int end_col, rend_t rstyle) NOTHROW
		2511	{
		2512	int view_end = view_start + nrow;
		2513	int row, col;
		2514
		2515	if (beg_row >= view_start)
		2516	{
		2517	col = beg_col;
		2518	row = beg_row;
		2519	}
		2520	else
		2521	{
		2522	col = 0;
		2523	row = view_start;
		2524	}
		2525
		2526	for (; row < min (end_row, view_end); row++, col = 0)
		2527	for (rend_t *srp = ROW(row).r; col < ncol; col++)
		2528	srp[col] ^= rstyle;
		2529
		2530	if (row == end_row)
		2531	for (rend_t *srp = ROW(row).r; col < end_col; col++)
		2532	srp[col] ^= rstyle;
		2533	}
		2534
		2535	/* ------------------------------------------------------------------------- */
		2536	void
2440	rxvt_term::scr_reverse_selection ()	2537	rxvt_term::scr_reverse_selection () NOTHROW
2441	{	2538	{
2442	if (selection.op	2539	if (selection.op
2443	&& current_screen == selection.screen	2540	&& current_screen == selection.screen
2444	&& selection.end.row >= -view_start)	2541	&& selection.end.row >= view_start)
2445	{	2542	{
2446	int view_end = -view_start + nrow;
2447	int row, col;
2448
2449	#if ENABLE_FRILLS	2543	#if ENABLE_FRILLS
2450	if (selection.rect)	2544	if (selection.rect)
2451	{	2545	scr_xor_rect (selection.beg.row, selection.beg.col,
2452	for (row = max (selection.beg.row, -view_start); row <= min (selection.end.row, view_end); row++)	2546	selection.end.row, selection.end.col,
2453	{	2547	RS_RVid, RS_RVid | RS_Uline);
2454	text_t *stp = ROW(row).t;
2455	rend_t *srp = ROW(row).r;
2456
2457	for (col = selection.beg.col; col < selection.end.col; col++)
2458	srp[col] ^= RS_RVid;
2459
2460	while (col-- > selection.beg.col && (stp[col] == NOCHAR || unicode::is_space (stp[col])))
2461	srp[col] ^= RS_RVid | RS_Uline;
2462	}
2463	}
2464	else	2548	else
2465	#endif	2549	#endif
2466	{	2550	scr_xor_span (selection.beg.row, selection.beg.col,
2467	if (selection.beg.row >= -view_start)	2551	selection.end.row, selection.end.col,
2468	{	2552	RS_RVid);
2469	col = selection.beg.col;
2470	row = selection.beg.row;
2471	}
2472	else
2473	{
2474	col = 0;
2475	row = -view_start;
2476	}
2477
2478	for (; row < min (selection.end.row, view_end); row++, col = 0)
2479	for (rend_t *srp = ROW(row).r; col < ncol; col++)
2480	srp[col] ^= RS_RVid;
2481
2482	if (row == selection.end.row)
2483	for (rend_t *srp = ROW(row).r; col < selection.end.col; col++)
2484	srp[col] ^= RS_RVid;
2485	}
2486	}	2553	}
2487	}	2554	}
2488		2555
2489	/* ------------------------------------------------------------------------- */	2556	/* ------------------------------------------------------------------------- */
2490	/*	2557	/*
2491	* Dump the whole scrollback and screen to the passed filedescriptor. The	2558	* Dump the whole scrollback and screen to the passed filedescriptor. The
2492	* invoking routine must close the fd.	2559	* invoking routine must close the fd.
2493	*/	2560	*/
2494	#if 0	2561	#if 0
2495	void	2562	void
2496	rxvt_term::scr_dump (int fd)	2563	rxvt_term::scr_dump (int fd) NOTHROW
2497	{	2564	{
2498	int row, wrote;	2565	int row, wrote;
2499	unsigned int width, towrite;	2566	unsigned int width, towrite;
2500	char r1[] = "\n";	2567	char r1[] = "\n";
2501		2568
…		…
2520		2587
2521	/* ------------------------------------------------------------------------- *	2588	/* ------------------------------------------------------------------------- *
2522	* CHARACTER SELECTION *	2589	* CHARACTER SELECTION *
2523	* ------------------------------------------------------------------------- */	2590	* ------------------------------------------------------------------------- */
2524	void	2591	void
2525	rxvt_term::selection_check (int check_more)	2592	rxvt_term::selection_check (int check_more) NOTHROW
2526	{	2593	{
2527	row_col_t pos;	2594	row_col_t pos;
2528		2595
2529	if (!selection.op)	2596	if (!selection.op)
2530	return;	2597	return;
2531		2598
2532	pos.row = pos.col = 0;	2599	pos.row = pos.col = 0;
2533	if (!IN_RANGE_EXC (selection.beg.row, -nsaved, nrow)	2600	if (!IN_RANGE_EXC (selection.beg.row, top_row, nrow)
2534	|| !IN_RANGE_EXC (selection.mark.row, -nsaved, nrow)	2601	|| !IN_RANGE_EXC (selection.mark.row, top_row, nrow)
2535	|| !IN_RANGE_EXC (selection.end.row, -nsaved, nrow)	2602	|| !IN_RANGE_EXC (selection.end.row, top_row, nrow)
2536	|| (check_more == 1	2603	|| (check_more == 1
2537	&& current_screen == selection.screen	2604	&& current_screen == selection.screen
2538	&& !ROWCOL_IS_BEFORE (screen.cur, selection.beg)	2605	&& !ROWCOL_IS_BEFORE (screen.cur, selection.beg)
2539	&& ROWCOL_IS_BEFORE (screen.cur, selection.end))	2606	&& ROWCOL_IS_BEFORE (screen.cur, selection.end))
2540	|| (check_more == 2	2607	|| (check_more == 2
…		…
2551	/* ------------------------------------------------------------------------- */	2618	/* ------------------------------------------------------------------------- */
2552	/*	2619	/*
2553	* Paste a selection direct to the command fd	2620	* Paste a selection direct to the command fd
2554	*/	2621	*/
2555	void	2622	void
2556	rxvt_term::paste (unsigned char *data, unsigned int len)	2623	rxvt_term::paste (char *data, unsigned int len) NOTHROW
2557	{	2624	{
2558	/* convert normal newline chars into common keyboard Return key sequence */	2625	/* convert normal newline chars into common keyboard Return key sequence */
2559	for (unsigned int i = 0; i < len; i++)	2626	for (unsigned int i = 0; i < len; i++)
2560	if (data[i] == C0_LF)	2627	if (data[i] == C0_LF)
2561	data[i] = C0_CR;	2628	data[i] = C0_CR;
…		…
2567	/*	2634	/*
2568	* Respond to a notification that a primary selection has been sent	2635	* Respond to a notification that a primary selection has been sent
2569	* EXT: SelectionNotify	2636	* EXT: SelectionNotify
2570	*/	2637	*/
2571	void	2638	void
2572	rxvt_term::selection_paste (Window win, Atom prop, bool delete_prop)	2639	rxvt_term::selection_paste (Window win, Atom prop, bool delete_prop) NOTHROW
2573	{	2640	{
2574	if (prop == None) /* check for failed XConvertSelection */	2641	if (prop == None) /* check for failed XConvertSelection */
2575	{	2642	{
2576	if ((selection_type & Sel_CompoundText))	2643	if ((selection_type & Sel_CompoundText))
2577	{	2644	{
…		…
2705	{	2772	{
2706	wchar_t *w = rxvt_utf8towcs ((const char *)ct.value, ct.nitems);	2773	wchar_t *w = rxvt_utf8towcs ((const char *)ct.value, ct.nitems);
2707	char *s = rxvt_wcstombs (w);	2774	char *s = rxvt_wcstombs (w);
2708	free (w);	2775	free (w);
2709	// TODO: strlen == only the first element will be converted. well...	2776	// TODO: strlen == only the first element will be converted. well...
2710	paste ((unsigned char *)s, strlen (s));	2777	paste (s, strlen (s));
2711	free (s);	2778	free (s);
2712	}	2779	}
2713	else	2780	else
2714	#endif	2781	#endif
2715	if (XmbTextPropertyToTextList (display->display, &ct, &cl, &cr) >= 0	2782	if (XmbTextPropertyToTextList (display->display, &ct, &cl, &cr) >= 0
2716	&& cl)	2783	&& cl)
2717	{	2784	{
2718	for (int i = 0; i < cr; i++)	2785	for (int i = 0; i < cr; i++)
2719	paste ((unsigned char *)cl[i], strlen (cl[i]));	2786	paste (cl[i], strlen (cl[i]));
2720		2787
2721	XFreeStringList (cl);	2788	XFreeStringList (cl);
2722	}	2789	}
2723	else	2790	else
2724	paste (ct.value, ct.nitems); // paste raw	2791	paste ((char *)ct.value, ct.nitems); // paste raw
2725		2792
2726	bailout:	2793	bailout:
2727	XFree (ct.value);	2794	XFree (ct.value);
2728		2795
2729	if (selection_wait == Sel_normal)	2796	if (selection_wait == Sel_normal)
2730	selection_wait = Sel_none;	2797	selection_wait = Sel_none;
2731	}	2798	}
2732		2799
2733	void	2800	void
2734	rxvt_term::incr_cb (time_watcher &w)	2801	rxvt_term::incr_cb (time_watcher &w) NOTHROW
2735	{	2802	{
2736	selection_wait = Sel_none;	2803	selection_wait = Sel_none;
2737		2804
2738	incr_buf_size = 0;	2805	incr_buf_size = 0;
2739	free (incr_buf);	2806	free (incr_buf);
2740		2807
2741	rxvt_warn ("data loss: timeout on INCR selection paste, ignoring.\n");	2808	rxvt_warn ("data loss: timeout on INCR selection paste, ignoring.\n");
2742	}	2809	}
2743		2810
2744	void	2811	void
2745	rxvt_term::selection_property (Window win, Atom prop)	2812	rxvt_term::selection_property (Window win, Atom prop) NOTHROW
2746	{	2813	{
2747	if (prop == None || selection_wait != Sel_incr)	2814	if (prop == None || selection_wait != Sel_incr)
2748	return;	2815	return;
2749		2816
2750	selection_paste (win, prop, true);	2817	selection_paste (win, prop, true);
…		…
2759	* (+) if ownership is claimed but property is empty, rxvt_selection_paste ()	2826	* (+) if ownership is claimed but property is empty, rxvt_selection_paste ()
2760	* will auto fallback to CUT_BUFFER0	2827	* will auto fallback to CUT_BUFFER0
2761	* EXT: button 2 release	2828	* EXT: button 2 release
2762	*/	2829	*/
2763	void	2830	void
2764	rxvt_term::selection_request (Time tm, int x, int y)	2831	rxvt_term::selection_request (Time tm, int selnum) NOTHROW
2765	{	2832	{
2766	if (x < 0 || x >= width || y < 0 || y >= height)	2833	if (selection.text && selnum == Sel_Primary)
2767	return; /* outside window */
2768
2769	if (selection.text)
2770	{ /* internal selection */	2834	{ /* internal selection */
2771	char *str = rxvt_wcstombs (selection.text, selection.len);	2835	char *str = rxvt_wcstombs (selection.text, selection.len);
2772	paste ((unsigned char *)str, strlen (str));	2836	paste (str, strlen (str));
2773	free (str);	2837	free (str);
2774	return;	2838	return;
2775	}	2839	}
2776	else	2840	else
2777	{	2841	{
2778	int i;
2779
2780	selection_request_time = tm;	2842	selection_request_time = tm;
2781	selection_wait = Sel_normal;	2843	selection_wait = Sel_normal;
2782		2844
2783	for (i = Sel_Primary; i <= Sel_Clipboard; i++)
2784	{
2785	#if X_HAVE_UTF8_STRING	2845	#if X_HAVE_UTF8_STRING
2786	selection_type = Sel_UTF8String;	2846	selection_type = Sel_UTF8String;
2787	if (selection_request_other (xa[XA_UTF8_STRING], i))	2847	if (selection_request_other (xa[XA_UTF8_STRING], selnum))
2788	return;	2848	return;
2789	#else	2849	#else
2790	selection_type = Sel_CompoundText;	2850	selection_type = Sel_CompoundText;
2791	if (selection_request_other (xa[XA_COMPOUND_TEXT], i))	2851	if (selection_request_other (xa[XA_COMPOUND_TEXT], selnum))
2792	return;	2852	return;
2793	#endif	2853	#endif
2794	}
2795	}	2854	}
2796		2855
2797	selection_wait = Sel_none; /* don't loop in selection_paste () */	2856	selection_wait = Sel_none; /* don't loop in selection_paste () */
2798	selection_paste (display->root, XA_CUT_BUFFER0, false);	2857	selection_paste (display->root, XA_CUT_BUFFER0, false);
2799	}	2858	}
2800		2859
2801	int	2860	int
2802	rxvt_term::selection_request_other (Atom target, int selnum)	2861	rxvt_term::selection_request_other (Atom target, int selnum) NOTHROW
2803	{	2862	{
2804	Atom sel;	2863	Atom sel;
2805		2864
2806	selection_type |= selnum;	2865	selection_type |= selnum;
2807		2866
…		…
2826	/*	2885	/*
2827	* Clear all selected text	2886	* Clear all selected text
2828	* EXT: SelectionClear	2887	* EXT: SelectionClear
2829	*/	2888	*/
2830	void	2889	void
2831	rxvt_term::selection_clear ()	2890	rxvt_term::selection_clear () NOTHROW
2832	{	2891	{
2833	want_refresh = 1;	2892	want_refresh = 1;
2834	free (selection.text);	2893	free (selection.text);
2835	selection.text = NULL;	2894	selection.text = NULL;
2836	selection.len = 0;	2895	selection.len = 0;
…		…
2869	selection.op = SELECTION_DONE;	2928	selection.op = SELECTION_DONE;
2870		2929
2871	if (selection.clicks == 4)	2930	if (selection.clicks == 4)
2872	return; /* nothing selected, go away */	2931	return; /* nothing selected, go away */
2873		2932
		2933	if (HOOK_INVOKE ((this, HOOK_SEL_MAKE, DT_LONG, (long)tm, DT_END)))
		2934	return;
		2935
2874	i = (selection.end.row - selection.beg.row + 1) * (ncol + 1);	2936	i = (selection.end.row - selection.beg.row + 1) * (ncol + 1);
2875	new_selection_text = (wchar_t *)rxvt_malloc ((i + 4) * sizeof (wchar_t));	2937	new_selection_text = (wchar_t *)rxvt_malloc ((i + 4) * sizeof (wchar_t));
2876		2938
2877	int ofs = 0;	2939	int ofs = 0;
2878	int extra = 0;	2940	int extra = 0;
…		…
2890	col = selection.beg.col;	2952	col = selection.beg.col;
2891	end_col = ncol + 1;	2953	end_col = ncol + 1;
2892	}	2954	}
2893	else	2955	else
2894	#endif	2956	#endif
2895	end_col = ROW(row).is_longer () ? ncol : ROW(row).l; //TODO//FIXME//LEN	2957	end_col = ROW(row).l;
2896		2958
2897	col = max (col, 0);	2959	col = max (col, 0);
2898		2960
2899	if (row == selection.end.row	2961	if (row == selection.end.row
2900	#if ENABLE_FRILLS	2962	#if ENABLE_FRILLS
…		…
2902	#endif	2964	#endif
2903	)	2965	)
2904	min_it (end_col, selection.end.col);	2966	min_it (end_col, selection.end.col);
2905		2967
2906	t = ROW(row).t + col;	2968	t = ROW(row).t + col;
		2969
2907	for (; col < end_col; col++)	2970	for (; col < end_col; col++)
2908	{	2971	{
2909	if (*t == NOCHAR)	2972	if (*t == NOCHAR)
2910	t++;	2973	t++;
2911	#if ENABLE_COMBINING	2974	#if ENABLE_COMBINING
…		…
2960		3023
2961	// we usually allocate much more than necessary, so realloc it smaller again	3024	// we usually allocate much more than necessary, so realloc it smaller again
2962	selection.len = ofs;	3025	selection.len = ofs;
2963	selection.text = (wchar_t *)rxvt_realloc (new_selection_text, (ofs + 1) * sizeof (wchar_t));	3026	selection.text = (wchar_t *)rxvt_realloc (new_selection_text, (ofs + 1) * sizeof (wchar_t));
2964		3027
		3028	if (HOOK_INVOKE ((this, HOOK_SEL_GRAB, DT_LONG, (long)tm, DT_END)))
		3029	return;
		3030
		3031	selection_grab (tm);
		3032	}
		3033
		3034	bool
		3035	rxvt_term::selection_grab (Time tm) NOTHROW
		3036	{
		3037	selection_time = tm;
		3038
2965	XSetSelectionOwner (display->display, XA_PRIMARY, vt, tm);	3039	XSetSelectionOwner (display->display, XA_PRIMARY, vt, tm);
2966	if (XGetSelectionOwner (display->display, XA_PRIMARY) == vt)	3040	if (XGetSelectionOwner (display->display, XA_PRIMARY) == vt)
		3041	{
2967	display->set_selection_owner (this);	3042	display->set_selection_owner (this);
		3043	return true;
		3044	}
2968	else	3045	else
2969	rxvt_warn ("can't get primary selection, ignoring.\n");	3046	{
		3047	selection_clear ();
		3048	return false;
		3049	}
2970		3050
2971	#if 0	3051	#if 0
2972	XTextProperty ct;	3052	XTextProperty ct;
2973		3053
2974	if (XwcTextListToTextProperty (display->display, &selection.text, 1, XStringStyle, &ct) >= 0)	3054	if (XwcTextListToTextProperty (display->display, &selection.text, 1, XStringStyle, &ct) >= 0)
2975	{	3055	{
2976	set_string_property (XA_CUT_BUFFER0, ct.value, ct.nitems);	3056	set_string_property (XA_CUT_BUFFER0, ct.value, ct.nitems);
2977	XFree (ct.value);	3057	XFree (ct.value);
2978	}	3058	}
2979	#endif	3059	#endif
2980
2981	selection_time = tm;
2982	}	3060	}
2983		3061
2984	/* ------------------------------------------------------------------------- */	3062	/* ------------------------------------------------------------------------- */
2985	/*	3063	/*
2986	* Mark or select text based upon number of clicks: 1, 2, or 3	3064	* Mark or select text based upon number of clicks: 1, 2, or 3
2987	* EXT: button 1 press	3065	* EXT: button 1 press
2988	*/	3066	*/
2989	void	3067	void
2990	rxvt_term::selection_click (int clicks, int x, int y)	3068	rxvt_term::selection_click (int clicks, int x, int y) NOTHROW
2991	{	3069	{
2992	clicks = ((clicks - 1) % 3) + 1;	3070	clicks = ((clicks - 1) % 3) + 1;
2993	selection.clicks = clicks; /* save clicks so extend will work */	3071	selection.clicks = clicks; /* save clicks so extend will work */
2994		3072
		3073	if (clicks == 2 && !selection.rect
		3074	&& HOOK_INVOKE ((this, HOOK_SEL_EXTEND, DT_END)))
		3075	{
		3076	MEvent.clicks = 1; // what a mess
		3077	selection.screen = current_screen;
		3078	selection.op = SELECTION_CONT;
		3079	return;
		3080	}
		3081
2995	selection_start_colrow (Pixel2Col (x), Pixel2Row (y));	3082	selection_start_colrow (Pixel2Col (x), Pixel2Row (y));
2996		3083
2997	if (clicks == 2 || clicks == 3)	3084	if (clicks == 2 || clicks == 3)
2998	selection_extend_colrow (selection.mark.col,	3085	selection_extend_colrow (selection.mark.col,
2999	selection.mark.row + view_start,	3086	selection.mark.row - view_start,
3000	0, /* button 3 */	3087	0, /* button 3 */
3001	1, /* button press */	3088	1, /* button press */
3002	0); /* click change */	3089	0); /* click change */
3003	}	3090	}
3004		3091
3005	/* ------------------------------------------------------------------------- */	3092	/* ------------------------------------------------------------------------- */
3006	/*	3093	/*
3007	* Mark a selection at the specified col/row	3094	* Mark a selection at the specified col/row
3008	*/	3095	*/
3009	void	3096	void
3010	rxvt_term::selection_start_colrow (int col, int row)	3097	rxvt_term::selection_start_colrow (int col, int row) NOTHROW
3011	{	3098	{
3012	want_refresh = 1;	3099	want_refresh = 1;
3013		3100
3014	selection.mark.row = row - view_start;	3101	selection.mark.row = row + view_start;
3015	selection.mark.col = col;	3102	selection.mark.col = col;
3016		3103
3017	selection.mark.row = clamp (selection.mark.row, -nsaved, nrow - 1);	3104	selection.mark.row = clamp (selection.mark.row, top_row, nrow - 1);
3018	selection.mark.col = clamp (selection.mark.col, 0, ncol - 1);	3105	selection.mark.col = clamp (selection.mark.col, 0, ncol - 1);
3019		3106
3020	while (selection.mark.col > 0	3107	while (selection.mark.col > 0
3021	&& ROW(selection.mark.row).t[selection.mark.col] == NOCHAR)	3108	&& ROW(selection.mark.row).t[selection.mark.col] == NOCHAR)
3022	--selection.mark.col;	3109	--selection.mark.col;
…		…
3041	#define DELIMIT_TEXT(x) \	3128	#define DELIMIT_TEXT(x) \
3042	(unicode::is_space (x) ? 2 : (x) <= 0xff && !!strchr (rs[Rs_cutchars], (x)))	3129	(unicode::is_space (x) ? 2 : (x) <= 0xff && !!strchr (rs[Rs_cutchars], (x)))
3043	#define DELIMIT_REND(x) 1	3130	#define DELIMIT_REND(x) 1
3044		3131
3045	void	3132	void
3046	rxvt_term::selection_delimit_word (enum page_dirn dirn, const row_col_t *mark, row_col_t *ret)	3133	rxvt_term::selection_delimit_word (enum page_dirn dirn, const row_col_t *mark, row_col_t *ret) NOTHROW
3047	{	3134	{
3048	int col, row, dirnadd, tcol, trow, w1, w2;	3135	int col, row, dirnadd, tcol, trow, w1, w2;
3049	row_col_t bound;	3136	row_col_t bound;
3050	text_t *stp;	3137	text_t *stp;
3051	rend_t *srp;	3138	rend_t *srp;
3052		3139
3053	if (dirn == UP)	3140	if (dirn == UP)
3054	{	3141	{
3055	bound.row = - nsaved - 1;	3142	bound.row = top_row - 1;
3056	bound.col = 0;	3143	bound.col = 0;
3057	dirnadd = -1;	3144	dirnadd = -1;
3058	}	3145	}
3059	else	3146	else
3060	{	3147	{
…		…
3108	}	3195	}
3109	}	3196	}
3110	break;	3197	break;
3111	}	3198	}
3112		3199
3113	Old_Word_Selection_You_Die:
3114	if (dirn == DN)	3200	if (dirn == DN)
3115	col++; /* put us on one past the end */	3201	col++; /* put us on one past the end */
3116		3202
3117	/* Poke the values back in */	3203	/* Poke the values back in */
3118	ret->row = row;	3204	ret->row = row;
…		…
3126	* flag == 0 ==> button 1	3212	* flag == 0 ==> button 1
3127	* flag == 1 ==> button 3 press	3213	* flag == 1 ==> button 3 press
3128	* flag == 2 ==> button 3 motion	3214	* flag == 2 ==> button 3 motion
3129	*/	3215	*/
3130	void	3216	void
3131	rxvt_term::selection_extend (int x, int y, int flag)	3217	rxvt_term::selection_extend (int x, int y, int flag) NOTHROW
3132	{	3218	{
3133	int col = clamp (Pixel2Col (x), 0, ncol);	3219	int col = clamp (Pixel2Col (x), 0, ncol);
3134	int row = clamp (Pixel2Row (y), 0, nrow - 1);	3220	int row = clamp (Pixel2Row (y), 0, nrow - 1);
3135		3221
3136	/*	3222	/*
…		…
3139	* select nothing. Otherwise, if we're to the right of the mark, you have to	3225	* select nothing. Otherwise, if we're to the right of the mark, you have to
3140	* be _past_ a character for it to be selected.	3226	* be _past_ a character for it to be selected.
3141	*/	3227	*/
3142	if (((selection.clicks % 3) == 1) && !flag	3228	if (((selection.clicks % 3) == 1) && !flag
3143	&& (col == selection.mark.col	3229	&& (col == selection.mark.col
3144	&& (row == selection.mark.row + view_start)))	3230	&& (row == selection.mark.row - view_start)))
3145	{	3231	{
3146	/* select nothing */	3232	/* select nothing */
3147	selection.beg.row = selection.end.row = 0;	3233	selection.beg.row = selection.end.row = 0;
3148	selection.beg.col = selection.end.col = 0;	3234	selection.beg.col = selection.end.col = 0;
3149	selection.clicks = 4;	3235	selection.clicks = 4;
…		…
3162	/* ------------------------------------------------------------------------- */	3248	/* ------------------------------------------------------------------------- */
3163	/*	3249	/*
3164	* Extend the selection to the specified col/row	3250	* Extend the selection to the specified col/row
3165	*/	3251	*/
3166	void	3252	void
3167	rxvt_term::selection_extend_colrow (int32_t col, int32_t row, int button3, int buttonpress, int clickchange)	3253	rxvt_term::selection_extend_colrow (int32_t col, int32_t row, int button3, int buttonpress, int clickchange) NOTHROW
3168	{	3254	{
3169	row_col_t pos;	3255	row_col_t pos;
3170	enum {	3256	enum {
3171	LEFT, RIGHT	3257	LEFT, RIGHT
3172	} closeto = RIGHT;	3258	} closeto = RIGHT;
…		…
3204	selection.beg.col = selection.end.col = selection.mark.col;	3290	selection.beg.col = selection.end.col = selection.mark.col;
3205	selection.beg.row = selection.end.row = selection.mark.row;	3291	selection.beg.row = selection.end.row = selection.mark.row;
3206	}	3292	}
3207		3293
3208	pos.col = col;	3294	pos.col = col;
3209	pos.row = row - view_start;	3295	pos.row = view_start + row;
3210		3296
3211	/*	3297	/*
3212	* This is mainly xterm style selection with a couple of differences, mainly	3298	* This is mainly xterm style selection with a couple of differences, mainly
3213	* in the way button3 drag extension works.	3299	* in the way button3 drag extension works.
3214	* We're either doing: button1 drag; button3 press; or button3 drag	3300	* We're either doing: button1 drag; button3 press; or button3 drag
…		…
3301	selection_delimit_word (DN, &selection.end, &selection.end);	3387	selection_delimit_word (DN, &selection.end, &selection.end);
3302	}	3388	}
3303	else if (selection.clicks == 3)	3389	else if (selection.clicks == 3)
3304	{	3390	{
3305	#if ENABLE_FRILLS	3391	#if ENABLE_FRILLS
3306	if (options & Opt_tripleclickwords)	3392	if (OPTION (Opt_tripleclickwords))
3307	{	3393	{
3308	selection_delimit_word (UP, &selection.beg, &selection.beg);	3394	selection_delimit_word (UP, &selection.beg, &selection.beg);
3309		3395
3310	for (int end_row = selection.mark.row; end_row < nrow; end_row++)	3396	for (int end_row = selection.mark.row; end_row < nrow; end_row++)
3311	{	3397	{
…		…
3358	#endif	3444	#endif
3359	}	3445	}
3360		3446
3361	#if ENABLE_FRILLS	3447	#if ENABLE_FRILLS
3362	void	3448	void
3363	rxvt_term::selection_remove_trailing_spaces ()	3449	rxvt_term::selection_remove_trailing_spaces () NOTHROW
3364	{	3450	{
3365	int32_t end_col, end_row;	3451	int32_t end_col, end_row;
3366	text_t *stp;	3452	text_t *stp;
3367		3453
3368	end_col = selection.end.col;	3454	end_col = selection.end.col;
…		…
3406	/*	3492	/*
3407	* Double click on button 3 when already selected	3493	* Double click on button 3 when already selected
3408	* EXT: button 3 double click	3494	* EXT: button 3 double click
3409	*/	3495	*/
3410	void	3496	void
3411	rxvt_term::selection_rotate (int x, int y)	3497	rxvt_term::selection_rotate (int x, int y) NOTHROW
3412	{	3498	{
3413	selection.clicks = selection.clicks % 3 + 1;	3499	selection.clicks = selection.clicks % 3 + 1;
3414	selection_extend_colrow (Pixel2Col (x), Pixel2Row (y), 1, 0, 1);	3500	selection_extend_colrow (Pixel2Col (x), Pixel2Row (y), 1, 0, 1);
3415	}	3501	}
3416		3502
…		…
3418	/*	3504	/*
3419	* Respond to a request for our current selection	3505	* Respond to a request for our current selection
3420	* EXT: SelectionRequest	3506	* EXT: SelectionRequest
3421	*/	3507	*/
3422	void	3508	void
3423	rxvt_term::selection_send (const XSelectionRequestEvent &rq)	3509	rxvt_term::selection_send (const XSelectionRequestEvent &rq) NOTHROW
3424	{	3510	{
3425	XSelectionEvent ev;	3511	XSelectionEvent ev;
3426	dDisp;	3512	dDisp;
3427		3513
3428	ev.type = SelectionNotify;	3514	ev.type = SelectionNotify;
…		…
3556		3642
3557	/*	3643	/*
3558	* return col/row values corresponding to x/y pixel values	3644	* return col/row values corresponding to x/y pixel values
3559	*/	3645	*/
3560	void	3646	void
3561	rxvt_term::pixel_position (int *x, int *y)	3647	rxvt_term::pixel_position (int *x, int *y) NOTHROW
3562	{	3648	{
3563	*x = Pixel2Col (*x);	3649	*x = Pixel2Col (*x);
3564	/* max_it (*x, 0); min_it (*x, (int)ncol - 1); */	3650	/* max_it (*x, 0); min_it (*x, (int)ncol - 1); */
3565	*y = Pixel2Row (*y);	3651	*y = Pixel2Row (*y);
3566	/* max_it (*y, 0); min_it (*y, (int)nrow - 1); */	3652	/* max_it (*y, 0); min_it (*y, (int)nrow - 1); */
3567	}	3653	}
3568		3654
3569	/* ------------------------------------------------------------------------- */	3655	/* ------------------------------------------------------------------------- */
3570	#ifdef USE_XIM	3656	#ifdef USE_XIM
3571	void	3657	void
3572	rxvt_term::im_set_position (XPoint &pos)	3658	rxvt_term::im_set_position (XPoint &pos) NOTHROW
3573	{	3659	{
3574	XWindowAttributes xwa;	3660	XWindowAttributes xwa;
3575		3661
3576	XGetWindowAttributes (display->display, vt, &xwa);	3662	XGetWindowAttributes (display->display, vt, &xwa);
3577		3663
…		…
3580	}	3666	}
3581	#endif	3667	#endif
3582		3668
3583	#if ENABLE_OVERLAY	3669	#if ENABLE_OVERLAY
3584	void	3670	void
3585	rxvt_term::scr_overlay_new (int x, int y, int w, int h)	3671	rxvt_term::scr_overlay_new (int x, int y, int w, int h) NOTHROW
3586	{	3672	{
3587	if (nrow < 3 || ncol < 3)	3673	if (nrow < 1 || ncol < 1)
3588	return;	3674	return;
3589		3675
3590	want_refresh = 1;	3676	want_refresh = 1;
3591		3677
3592	scr_overlay_off ();	3678	scr_overlay_off ();
…		…
3635	*rp = r;	3721	*rp = r;
3636	}	3722	}
3637	}	3723	}
3638		3724
3639	void	3725	void
3640	rxvt_term::scr_overlay_off ()	3726	rxvt_term::scr_overlay_off () NOTHROW
3641	{	3727	{
3642	if (!ov_text)	3728	if (!ov_text)
3643	return;	3729	return;
3644		3730
3645	want_refresh = 1;	3731	want_refresh = 1;
…		…
3653	delete [] ov_text; ov_text = 0;	3739	delete [] ov_text; ov_text = 0;
3654	delete [] ov_rend; ov_rend = 0;	3740	delete [] ov_rend; ov_rend = 0;
3655	}	3741	}
3656		3742
3657	void	3743	void
3658	rxvt_term::scr_overlay_set (int x, int y, text_t text, rend_t rend)	3744	rxvt_term::scr_overlay_set (int x, int y, text_t text, rend_t rend) NOTHROW
3659	{	3745	{
3660	if (!ov_text || x >= ov_w - 2 || y >= ov_h - 2)	3746	if (!ov_text || x >= ov_w - 2 || y >= ov_h - 2)
3661	return;	3747	return;
3662		3748
3663	x++, y++;	3749	x++, y++;
…		…
3665	ov_text[y][x] = text;	3751	ov_text[y][x] = text;
3666	ov_rend[y][x] = rend;	3752	ov_rend[y][x] = rend;
3667	}	3753	}
3668		3754
3669	void	3755	void
3670	rxvt_term::scr_overlay_set (int x, int y, const char *s)	3756	rxvt_term::scr_overlay_set (int x, int y, const char *s) NOTHROW
3671	{	3757	{
3672	while (*s)	3758	while (*s)
3673	scr_overlay_set (x++, y, *s++);	3759	scr_overlay_set (x++, y, *s++);
3674	}	3760	}
3675		3761
3676	void	3762	void
3677	rxvt_term::scr_overlay_set (int x, int y, const wchar_t *s)	3763	rxvt_term::scr_overlay_set (int x, int y, const wchar_t *s) NOTHROW
3678	{	3764	{
3679	while (*s)	3765	while (*s)
3680	{	3766	{
3681	text_t t = *s++;	3767	text_t t = *s++;
3682	int width = wcwidth (t);	3768	int width = wcwidth (t);
…		…
3688	}	3774	}
3689	}	3775	}
3690	}	3776	}
3691		3777
3692	void	3778	void
3693	rxvt_term::scr_swap_overlay ()	3779	rxvt_term::scr_swap_overlay () NOTHROW
3694	{	3780	{
3695	if (!ov_text)	3781	if (!ov_text)
3696	return;	3782	return;
3697		3783
3698	// swap screen mem with overlay	3784	// swap screen mem with overlay
3699	for (int y = ov_h; y--; )	3785	for (int y = ov_h; y--; )
3700	{	3786	{
3701	text_t *t1 = ov_text[y];	3787	text_t *t1 = ov_text[y];
3702	rend_t *r1 = ov_rend[y];	3788	rend_t *r1 = ov_rend[y];
3703		3789
3704	text_t *t2 = ROW(y + ov_y - view_start).t + ov_x;	3790	text_t *t2 = ROW(y + ov_y + view_start).t + ov_x;
3705	rend_t *r2 = ROW(y + ov_y - view_start).r + ov_x;	3791	rend_t *r2 = ROW(y + ov_y + view_start).r + ov_x;
3706		3792
3707	for (int x = ov_w; x--; )	3793	for (int x = ov_w; x--; )
3708	{	3794	{
3709	text_t t = *t1; *t1++ = *t2; *t2++ = t;	3795	text_t t = *t1; *t1++ = *t2; *t2++ = t;
3710	rend_t r = *r1; *r1++ = *r2; *r2++ = SET_FONT (r, FONTSET (r)->find_font (t));	3796	rend_t r = *r1; *r1++ = *r2; *r2++ = SET_FONT (r, FONTSET (r)->find_font (t));

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