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Comparing rxvt-unicode/src/screen.C (file contents):
Revision 1.413 by root, Wed Jan 18 12:39:14 2012 UTC vs.
Revision 1.461 by root, Thu Jun 17 00:49:20 2021 UTC

…		…
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) 2003-2007 Marc Lehmann <schmorp@schmorp.de>	6	* Copyright (c) 2003-2007 Marc Lehmann <schmorp@schmorp.de>
		7	* Copyright (c) 2015 Emanuele Giaquinta <e.giaquinta@glauco.it>
7	*	8	*
8	* This program is free software; you can redistribute it and/or modify	9	* 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	10	* 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	11	* the Free Software Foundation; either version 3 of the License, or
11	* (at your option) any later version.	12	* (at your option) any later version.
12	*	13	*
13	* This program is distributed in the hope that it will be useful,	14	* This program is distributed in the hope that it will be useful,
14	* but WITHOUT ANY WARRANTY; without even the implied warranty of	15	* but WITHOUT ANY WARRANTY; without even the implied warranty of
15	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the	16	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
…		…
27	#include "../config.h" /* NECESSARY */	28	#include "../config.h" /* NECESSARY */
28	#include "rxvt.h" /* NECESSARY */	29	#include "rxvt.h" /* NECESSARY */
29	#include "rxvtperl.h" /* NECESSARY */	30	#include "rxvtperl.h" /* NECESSARY */
30		31
31	#include <inttypes.h>	32	#include <inttypes.h>
32
33	#include "salloc.C" // HACK, should be a separate compile!
34		33
35	static inline void	34	static inline void
36	fill_text (text_t *start, text_t value, int len)	35	fill_text (text_t *start, text_t value, int len)
37	{	36	{
38	while (len--)	37	while (len--)
…		…
96	* SCREEN `COMMON' ROUTINES *	95	* SCREEN `COMMON' ROUTINES *
97	* ------------------------------------------------------------------------- */	96	* ------------------------------------------------------------------------- */
98		97
99	/* Fill part/all of a line with blanks. */	98	/* Fill part/all of a line with blanks. */
100	void	99	void
101	rxvt_term::scr_blank_line (line_t &l, unsigned int col, unsigned int width, rend_t efs) const NOTHROW	100	rxvt_term::scr_blank_line (line_t &l, unsigned int col, unsigned int width, rend_t efs) const noexcept
102	{	101	{
103	if (!l.t)	102	if (!l.valid ())
104	{	103	{
105	lalloc (l);	104	l.alloc ();
106	col = 0;	105	col = 0;
107	width = ncol;	106	width = ncol;
108	}	107	}
109		108
110	l.touch ();	109	l.touch ();
…		…
123	}	122	}
124		123
125	/* ------------------------------------------------------------------------- */	124	/* ------------------------------------------------------------------------- */
126	/* Fill a full line with blanks - make sure it is allocated first */	125	/* Fill a full line with blanks - make sure it is allocated first */
127	void	126	void
128	rxvt_term::scr_blank_screen_mem (line_t &l, rend_t efs) const NOTHROW	127	rxvt_term::scr_blank_screen_mem (line_t &l, rend_t efs) const noexcept
129	{	128	{
130	scr_blank_line (l, 0, ncol, efs);	129	scr_blank_line (l, 0, ncol, efs);
131		130
132	l.l = 0;	131	l.l = 0;
133	l.f = 0;	132	l.f = 0;
134	}	133	}
135		134
136	// nuke a single wide character at the given column	135	// nuke a single wide character at the given column
137	void	136	void
138	rxvt_term::scr_kill_char (line_t &l, int col) const NOTHROW	137	rxvt_term::scr_kill_char (line_t &l, int col) const noexcept
139	{	138	{
140	// find begin	139	// find begin
141	while (col > 0 && l.t[col] == NOCHAR)	140	while (col > 0 && l.t[col] == NOCHAR)
142	col--;	141	col--;
143		142
…		…
152	l.r[col] = rend;	151	l.r[col] = rend;
153	col++;	152	col++;
154	} while (col < ncol && l.t[col] == NOCHAR);	153	} while (col < ncol && l.t[col] == NOCHAR);
155	}	154	}
156		155
		156	// set the rendition of a single wide character beginning at the given column
		157	void
		158	rxvt_term::scr_set_char_rend (line_t &l, int col, rend_t rend)
		159	{
		160	do {
		161	l.r[col] = rend;
		162	col++;
		163	} while (col < ncol && l.t[col] == NOCHAR);
		164	}
		165
157	/* ------------------------------------------------------------------------- *	166	/* ------------------------------------------------------------------------- *
158	* SCREEN INITIALISATION *	167	* SCREEN INITIALISATION *
159	* ------------------------------------------------------------------------- */	168	* ------------------------------------------------------------------------- */
160		169
161	void	170	void
		171	rxvt_term::scr_alloc () noexcept
		172	{
		173	int tsize = sizeof (text_t) * ncol;
		174	int rsize = sizeof (rend_t) * ncol;
		175
		176	// we assume that rend_t size is a sufficient alignment
		177	// factor for text_t and line_t values, and we only
		178	// need to adjust tsize.
		179	tsize = (tsize + sizeof (rend_t) - 1);
		180	tsize -= tsize % sizeof (rend_t);
		181
		182	int all_rows = total_rows + nrow + nrow;
		183
		184	chunk_size = (sizeof (line_t) + rsize + tsize) * all_rows;
		185	chunk = chunk_alloc (chunk_size, 0);
		186
		187	char *base = (char *)chunk + sizeof (line_t) * all_rows;
		188
		189	for (int row = 0; row < all_rows; ++row)
		190	{
		191	line_t &l = ((line_t *)chunk) [row];
		192
		193	l.t = (text_t *)base; base += tsize;
		194	l.r = (rend_t *)base; base += rsize;
		195	l.l = -1;
		196	l.f = 0;
		197	}
		198
		199	drawn_buf = (line_t *)chunk;
		200	swap_buf = drawn_buf + nrow;
		201	row_buf = swap_buf + nrow;
		202	}
		203
		204	void
		205	rxvt_term::copy_line (line_t &dst, line_t &src)
		206	{
		207	scr_blank_screen_mem (dst, DEFAULT_RSTYLE);
		208	dst.l = min (src.l, ncol);
		209	memcpy (dst.t, src.t, sizeof (text_t) * dst.l);
		210	memcpy (dst.r, src.r, sizeof (rend_t) * dst.l);
		211	dst.f = src.f;
		212	}
		213
		214	void ecb_cold
162	rxvt_term::scr_reset ()	215	rxvt_term::scr_reset ()
163	{	216	{
164	#if ENABLE_OVERLAY	217	#if ENABLE_OVERLAY
165	scr_overlay_off ();	218	scr_overlay_off ();
166	#endif	219	#endif
…		…
192	total_rows = nrow + saveLines;	245	total_rows = nrow + saveLines;
193		246
194	screen.tscroll = 0;	247	screen.tscroll = 0;
195	screen.bscroll = nrow - 1;	248	screen.bscroll = nrow - 1;
196		249
		250	void *prev_chunk = chunk;
		251	size_t prev_chunk_size = chunk_size;
		252	line_t *prev_drawn_buf = drawn_buf;
		253	line_t *prev_swap_buf = swap_buf;
		254	line_t *prev_row_buf = row_buf;
		255
		256	scr_alloc ();
		257
197	if (!row_buf)	258	if (!prev_row_buf)
198	{	259	{
199	/*
200	* first time called so just malloc everything: don't rely on realloc
201	*/
202	top_row = 0;	260	top_row = 0;
203	term_start = 0;	261	term_start = 0;
204
205	talloc = new rxvt_salloc (ncol * sizeof (text_t));
206	ralloc = new rxvt_salloc (ncol * sizeof (rend_t));
207
208	row_buf = (line_t *)rxvt_calloc (total_rows , sizeof (line_t));
209	drawn_buf = (line_t *)rxvt_calloc (nrow , sizeof (line_t));
210	swap_buf = (line_t *)rxvt_calloc (nrow , sizeof (line_t));
211
212	for (int row = nrow; row--; )
213	{
214	scr_blank_screen_mem (ROW (row), DEFAULT_RSTYLE);
215	scr_blank_screen_mem (swap_buf [row], DEFAULT_RSTYLE);
216	scr_blank_screen_mem (drawn_buf[row], DEFAULT_RSTYLE);
217	}
218		262
219	memset (charsets, 'B', sizeof (charsets));	263	memset (charsets, 'B', sizeof (charsets));
220	rstyle = DEFAULT_RSTYLE;	264	rstyle = DEFAULT_RSTYLE;
221	screen.flags = Screen_DefaultFlags;	265	screen.flags = Screen_DefaultFlags;
222	screen.cur.row = screen.cur.col = 0;	266	screen.cur.row = screen.cur.col = 0;
…		…
245	{	289	{
246	/*	290	/*
247	* add or delete rows as appropriate	291	* add or delete rows as appropriate
248	*/	292	*/
249		293
250	rxvt_salloc *old_ta = talloc; talloc = new rxvt_salloc (ncol * sizeof (text_t));	294	int common_col = min (prev_ncol, ncol);
251	rxvt_salloc *old_ra = ralloc; ralloc = new rxvt_salloc (ncol * sizeof (rend_t));
252
253	#if 0
254	if (nrow < prev_nrow)
255	{
256	for (int row = nrow; row < prev_nrow; row++)
257	{
258	lfree (swap_buf [row]);
259	lfree (drawn_buf[row]);
260	}
261	}
262	#endif
263
264	drawn_buf = (line_t *)rxvt_realloc (drawn_buf, nrow * sizeof (line_t));
265	swap_buf = (line_t *)rxvt_realloc (swap_buf , nrow * sizeof (line_t));
266		295
267	for (int row = min (nrow, prev_nrow); row--; )	296	for (int row = min (nrow, prev_nrow); row--; )
268	{	297	{
269	lresize (drawn_buf[row]);	298	scr_blank_screen_mem (drawn_buf [row], DEFAULT_RSTYLE);
270	lresize (swap_buf [row]);	299	memcpy (drawn_buf [row].t, prev_drawn_buf [row].t, sizeof (text_t) * common_col);
271	}	300	memcpy (drawn_buf [row].r, prev_drawn_buf [row].r, sizeof (rend_t) * common_col);
272		301
273	for (int row = prev_nrow; row < nrow; row++)	302	copy_line (swap_buf [row], prev_swap_buf [row]);
274	{	303	}
275	swap_buf [row].clear (); scr_blank_screen_mem (swap_buf [row], DEFAULT_RSTYLE);
276	drawn_buf[row].clear (); scr_blank_screen_mem (drawn_buf[row], DEFAULT_RSTYLE);
277	}
278
279	line_t *old_buf = row_buf;
280	row_buf = (line_t *)rxvt_calloc (total_rows, sizeof (line_t));
281		304
282	int p = MOD (term_start + prev_nrow, prev_total_rows); // previous row	305	int p = MOD (term_start + prev_nrow, prev_total_rows); // previous row
283	int pend = MOD (term_start + top_row , prev_total_rows);	306	int pend = MOD (term_start + top_row , prev_total_rows);
284	int q = total_rows; // rewrapped row	307	int q = total_rows; // rewrapped row
285		308
…		…
293	ocur.row = MOD (term_start + ocur.row, prev_total_rows);	316	ocur.row = MOD (term_start + ocur.row, prev_total_rows);
294		317
295	do	318	do
296	{	319	{
297	p = MOD (p - 1, prev_total_rows);	320	p = MOD (p - 1, prev_total_rows);
298	assert (old_buf [MOD (p, prev_total_rows)].t);	321	assert (prev_row_buf [MOD (p, prev_total_rows)].t);
299	int plines = 1;	322	int plines = 1;
300	int llen = old_buf [MOD (p, prev_total_rows)].l;	323	int llen = prev_row_buf [MOD (p, prev_total_rows)].l;
301		324
302	while (p != pend && old_buf [MOD (p - 1, prev_total_rows)].is_longer ())	325	while (p != pend && prev_row_buf [MOD (p - 1, prev_total_rows)].is_longer ())
303	{	326	{
304	p = MOD (p - 1, prev_total_rows);	327	p = MOD (p - 1, prev_total_rows);
305		328
306	plines++;	329	plines++;
307	llen += prev_ncol;	330	llen += prev_ncol;
…		…
320		343
321	// re-assemble the full line by destination lines	344	// re-assemble the full line by destination lines
322	for (int qrow = q; qlines--; qrow++)	345	for (int qrow = q; qlines--; qrow++)
323	{	346	{
324	qline = row_buf + qrow;	347	qline = row_buf + qrow;
325	lalloc (*qline);	348	qline->alloc (); // redundant with next line
326	qline->l = ncol;	349	qline->l = ncol;
327	qline->is_longer (1);	350	qline->is_longer (1);
328		351
329	int qcol = 0;	352	int qcol = 0;
330		353
…		…
345	// this seems to upset applications/shells/readline	368	// this seems to upset applications/shells/readline
346	// least.	369	// least.
347	if (prow == ocur.row)	370	if (prow == ocur.row)
348	screen.cur.row = q - (total_rows - nrow);	371	screen.cur.row = q - (total_rows - nrow);
349		372
350	line_t &pline = old_buf [prow];	373	line_t &pline = prev_row_buf [prow];
351		374
352	int len = min (min (prev_ncol - pcol, ncol - qcol), llen - lofs);	375	int len = min (min (prev_ncol - pcol, ncol - qcol), llen - lofs);
353		376
354	memcpy (qline->t + qcol, pline.t + pcol, len * sizeof (text_t));	377	memcpy (qline->t + qcol, pline.t + pcol, len * sizeof (text_t));
355	memcpy (qline->r + qcol, pline.r + pcol, len * sizeof (rend_t));	378	memcpy (qline->r + qcol, pline.r + pcol, len * sizeof (rend_t));
…		…
376	{	399	{
377	// if no scrollback exists (yet), wing, instead of wrap	400	// if no scrollback exists (yet), wing, instead of wrap
378		401
379	for (int row = min (nrow, prev_nrow); row--; )	402	for (int row = min (nrow, prev_nrow); row--; )
380	{	403	{
381	line_t &pline = old_buf [MOD (term_start + row, prev_total_rows)];	404	line_t &src = prev_row_buf [MOD (term_start + row, prev_total_rows)];
382	line_t &qline = row_buf [row];	405	line_t &dst = row_buf [row];
383		406
384	qline = pline;	407	copy_line (dst, src);
385	lresize (qline);
386	}	408	}
387		409
388	for (int row = prev_nrow; row < nrow; row++)	410	for (int row = prev_nrow; row < nrow; row++)
389	{
390	row_buf [row].clear (); scr_blank_screen_mem (row_buf [row], DEFAULT_RSTYLE);	411	scr_blank_screen_mem (row_buf [row], DEFAULT_RSTYLE);
391	}
392		412
393	term_start = 0;	413	term_start = 0;
394	}	414	}
395
396	free (old_buf);
397	delete old_ta;
398	delete old_ra;
399		415
400	clamp_it (screen.cur.row, 0, nrow - 1);	416	clamp_it (screen.cur.row, 0, nrow - 1);
401	clamp_it (screen.cur.col, 0, ncol - 1);	417	clamp_it (screen.cur.col, 0, ncol - 1);
402	}	418	}
403		419
		420	for (int row = nrow; row--; )
		421	{
		422	if (!ROW (row).valid ()) scr_blank_screen_mem (ROW (row), DEFAULT_RSTYLE);
		423	if (!swap_buf [row].valid ()) scr_blank_screen_mem (swap_buf [row], DEFAULT_RSTYLE);
		424	if (!drawn_buf [row].valid ()) scr_blank_screen_mem (drawn_buf [row], DEFAULT_RSTYLE);
		425	}
		426
		427	chunk_free (prev_chunk, prev_chunk_size);
		428
404	free (tabs);	429	free (tabs);
405	tabs = (char *)rxvt_malloc (ncol);	430	tabs = (char *)rxvt_malloc (ncol);
406		431
407	for (int col = ncol; col--; )	432	for (int col = ncol; col--; )
408	tabs [col] = col % TABSIZE == 0;	433	tabs [col] = col % TABSIZE == 0;
…		…
415	tt_winch ();	440	tt_winch ();
416		441
417	HOOK_INVOKE ((this, HOOK_RESET, DT_END));	442	HOOK_INVOKE ((this, HOOK_RESET, DT_END));
418	}	443	}
419		444
420	/* ------------------------------------------------------------------------- */	445	void ecb_cold
421	/*
422	* Free everything. That way malloc debugging can find leakage.
423	*/
424	void
425	rxvt_term::scr_release () NOTHROW	446	rxvt_term::scr_release () noexcept
426	{	447	{
427	if (row_buf)	448	chunk_free (chunk, chunk_size);
428	{	449	chunk = 0;
429	delete talloc; talloc = 0;	450	row_buf = 0;
430	delete ralloc; ralloc = 0;
431		451
432	free (row_buf);
433	free (swap_buf);
434	free (drawn_buf);
435	row_buf = 0; // signal that we freed all the arrays above
436
437	free (tabs);	452	free (tabs);
438	tabs = 0;	453	tabs = 0;
439	}
440	}	454	}
441		455
442	/* ------------------------------------------------------------------------- */	456	/* ------------------------------------------------------------------------- */
443	/*	457	/*
444	* Hard/Soft reset	458	* Hard/Soft reset
445	*/	459	*/
446	void	460	void ecb_cold
447	rxvt_term::scr_poweron ()	461	rxvt_term::scr_poweron ()
448	{	462	{
449	scr_release ();	463	scr_release ();
		464
450	prev_nrow = prev_ncol = 0;	465	prev_nrow = prev_ncol = 0;
451	rvideo_mode = false;	466	rvideo_mode = false;
452	scr_soft_reset ();	467	scr_soft_reset ();
453	scr_reset ();	468	scr_reset ();
454		469
455	scr_clear (true);	470	scr_clear (true);
456	scr_refresh ();	471	scr_refresh ();
457	}	472	}
458		473
459	void	474	void ecb_cold
460	rxvt_term::scr_soft_reset () NOTHROW	475	rxvt_term::scr_soft_reset () noexcept
461	{	476	{
462	/* only affects modes, nothing drastic such as clearing the screen */	477	/* only affects modes, nothing drastic such as clearing the screen */
463	#if ENABLE_OVERLAY	478	#if ENABLE_OVERLAY
464	scr_overlay_off ();	479	scr_overlay_off ();
465	#endif	480	#endif
…		…
479	* Save and Restore cursor	494	* Save and Restore cursor
480	* XTERM_SEQ: Save cursor : ESC 7	495	* XTERM_SEQ: Save cursor : ESC 7
481	* XTERM_SEQ: Restore cursor: ESC 8	496	* XTERM_SEQ: Restore cursor: ESC 8
482	*/	497	*/
483	void	498	void
484	rxvt_term::scr_cursor (cursor_mode mode) NOTHROW	499	rxvt_term::scr_cursor (cursor_mode mode) noexcept
485	{	500	{
486	screen_t *s;	501	screen_t *s;
487		502
488	#if NSCREENS && !defined(NO_SECONDARY_SCREEN_CURSOR)	503	#if NSCREENS && !defined(NO_SECONDARY_SCREEN_CURSOR)
489	if (current_screen == SECONDARY)	504	if (current_screen == SECONDARY)
…		…
520	assert (s->cur.row >= 0);	535	assert (s->cur.row >= 0);
521	assert (s->cur.col >= 0);	536	assert (s->cur.col >= 0);
522	}	537	}
523		538
524	void	539	void
525	rxvt_term::scr_swap_screen () NOTHROW	540	rxvt_term::scr_swap_screen () noexcept
526	{	541	{
527	if (!option (Opt_secondaryScreen))	542	if (!option (Opt_secondaryScreen))
528	return;	543	return;
529		544
530	for (int i = prev_nrow; i--; )	545	for (int i = prev_nrow; i--; )
…		…
578	scr_scroll_text (0, prev_nrow - 1, prev_nrow);	593	scr_scroll_text (0, prev_nrow - 1, prev_nrow);
579	}	594	}
580		595
581	// clear WrapNext indicator, solidifying position on next line	596	// clear WrapNext indicator, solidifying position on next line
582	void	597	void
583	rxvt_term::scr_do_wrap () NOTHROW	598	rxvt_term::scr_do_wrap () noexcept
584	{	599	{
585	if (!(screen.flags & Screen_WrapNext))	600	if (!(screen.flags & Screen_WrapNext))
586	return;	601	return;
587		602
588	screen.flags &= ~Screen_WrapNext;	603	screen.flags &= ~Screen_WrapNext;
…		…
598	/* ------------------------------------------------------------------------- */	613	/* ------------------------------------------------------------------------- */
599	/*	614	/*
600	* Change the colour for following text	615	* Change the colour for following text
601	*/	616	*/
602	void	617	void
603	rxvt_term::scr_color (unsigned int color, int fgbg) NOTHROW	618	rxvt_term::scr_color (unsigned int color, int fgbg) noexcept
604	{	619	{
605	if (!IN_RANGE_INC (color, minCOLOR, maxTermCOLOR))	620	if (!IN_RANGE_INC (color, minCOLOR, maxTermCOLOR24))
606	color = fgbg;	621	color = fgbg;
607		622
608	if (fgbg == Color_fg)	623	if (fgbg == Color_fg)
609	rstyle = SET_FGCOLOR (rstyle, color);	624	rstyle = SET_FGCOLOR (rstyle, color);
610	else	625	else
…		…
614	/* ------------------------------------------------------------------------- */	629	/* ------------------------------------------------------------------------- */
615	/*	630	/*
616	* Change the rendition style for following text	631	* Change the rendition style for following text
617	*/	632	*/
618	void	633	void
619	rxvt_term::scr_rendition (int set, int style) NOTHROW	634	rxvt_term::scr_rendition (int set, int style) noexcept
620	{	635	{
621	if (set)	636	if (set)
622	rstyle |= style;	637	rstyle |= style;
623	else if (style == ~RS_None)	638	else if (style == ~RS_None)
624	rstyle = DEFAULT_RSTYLE;	639	rstyle = DEFAULT_RSTYLE;
…		…
630	/*	645	/*
631	* Scroll text between <row1> and <row2> inclusive, by <count> lines	646	* Scroll text between <row1> and <row2> inclusive, by <count> lines
632	* count positive ==> scroll up	647	* count positive ==> scroll up
633	* count negative ==> scroll down	648	* count negative ==> scroll down
634	*/	649	*/
635	int	650	int ecb_hot
636	rxvt_term::scr_scroll_text (int row1, int row2, int count) NOTHROW	651	rxvt_term::scr_scroll_text (int row1, int row2, int count) noexcept
637	{	652	{
638	if (count == 0 || (row1 > row2))	653	if (count == 0 || (row1 > row2))
639	return 0;	654	return 0;
640		655
641	want_refresh = 1;	656	want_refresh = 1;
…		…
701		716
702	// finally move the view window, if desired	717	// finally move the view window, if desired
703	if (option (Opt_scrollWithBuffer)	718	if (option (Opt_scrollWithBuffer)
704	&& view_start != 0	719	&& view_start != 0
705	&& view_start != -saveLines)	720	&& view_start != -saveLines)
706	scr_page (UP, count);	721	scr_page (count);
707		722
708	if (SHOULD_INVOKE (HOOK_SCROLL_BACK))	723	if (SHOULD_INVOKE (HOOK_SCROLL_BACK))
709	HOOK_INVOKE ((this, HOOK_SCROLL_BACK, DT_INT, count, DT_INT, top_row, DT_END));	724	HOOK_INVOKE ((this, HOOK_SCROLL_BACK, DT_INT, count, DT_INT, top_row, DT_END));
710	}	725	}
711	else	726	else
…		…
774		789
775	/* ------------------------------------------------------------------------- */	790	/* ------------------------------------------------------------------------- */
776	/*	791	/*
777	* Add text given in <str> of length <len> to screen struct	792	* Add text given in <str> of length <len> to screen struct
778	*/	793	*/
779	void	794	void ecb_hot
780	rxvt_term::scr_add_lines (const wchar_t *str, int len, int minlines) NOTHROW	795	rxvt_term::scr_add_lines (const wchar_t *str, int len, int minlines) noexcept
781	{	796	{
782	if (len <= 0) /* sanity */	797	if (len <= 0) /* sanity */
783	return;	798	return;
784		799
785	bool checksel;	800	bool checksel;
…		…
997	}	1012	}
998	else if (screen.cur.row > 0	1013	else if (screen.cur.row > 0
999	&& ROW(screen.cur.row - 1).is_longer ())	1014	&& ROW(screen.cur.row - 1).is_longer ())
1000	{	1015	{
1001	linep = &ROW(screen.cur.row - 1);	1016	linep = &ROW(screen.cur.row - 1);
1002	tp = line->t + ncol - 1;	1017	tp = linep->t + ncol - 1;
1003	rp = line->r + ncol - 1;	1018	rp = linep->r + ncol - 1;
1004	}	1019	}
1005	else	1020	else
1006	continue;	1021	continue;
1007		1022
1008	linep->touch ();	1023	linep->touch ();
…		…
1031	/*	1046	/*
1032	* Process Backspace. Move back the cursor back a position, wrap if have to	1047	* Process Backspace. Move back the cursor back a position, wrap if have to
1033	* XTERM_SEQ: CTRL-H	1048	* XTERM_SEQ: CTRL-H
1034	*/	1049	*/
1035	void	1050	void
1036	rxvt_term::scr_backspace () NOTHROW	1051	rxvt_term::scr_backspace () noexcept
1037	{	1052	{
1038	if (screen.cur.col == 0)	1053	if (screen.cur.col == 0)
1039	{	1054	{
1040	if (screen.cur.row > 0)	1055	if (screen.cur.row > 0)
1041	{	1056	{
…		…
1058	* Process Horizontal Tab	1073	* Process Horizontal Tab
1059	* count: +ve = forward; -ve = backwards	1074	* count: +ve = forward; -ve = backwards
1060	* XTERM_SEQ: CTRL-I	1075	* XTERM_SEQ: CTRL-I
1061	*/	1076	*/
1062	void	1077	void
1063	rxvt_term::scr_tab (int count, bool ht) NOTHROW	1078	rxvt_term::scr_tab (int count, bool ht) noexcept
1064	{	1079	{
1065	int i, x;	1080	int i, x;
1066		1081
1067	want_refresh = 1;	1082	want_refresh = 1;
1068	i = x = screen.cur.col;	1083	i = x = screen.cur.col;
…		…
1134	* XTERM_SEQ: ESC 6	1149	* XTERM_SEQ: ESC 6
1135	* Move cursor left in row. If we're at the left boundary, shift everything	1150	* Move cursor left in row. If we're at the left boundary, shift everything
1136	* in that row right. Clear left column.	1151	* in that row right. Clear left column.
1137	*/	1152	*/
1138	#if !ENABLE_MINIMAL	1153	#if !ENABLE_MINIMAL
1139	void	1154	void ecb_cold
1140	rxvt_term::scr_backindex () NOTHROW	1155	rxvt_term::scr_backindex () noexcept
1141	{	1156	{
1142	if (screen.cur.col > 0)	1157	if (screen.cur.col > 0)
1143	scr_gotorc (0, -1, R_RELATIVE | C_RELATIVE);	1158	scr_gotorc (0, -1, R_RELATIVE | C_RELATIVE);
1144	else	1159	else
1145	scr_insdel_chars (1, INSERT);	1160	scr_insdel_chars (1, INSERT);
…		…
1151	* XTERM_SEQ: ESC 9	1166	* XTERM_SEQ: ESC 9
1152	* Move cursor right in row. If we're at the right boundary, shift everything	1167	* Move cursor right in row. If we're at the right boundary, shift everything
1153	* in that row left. Clear right column.	1168	* in that row left. Clear right column.
1154	*/	1169	*/
1155	#if !ENABLE_MINIMAL	1170	#if !ENABLE_MINIMAL
1156	void	1171	void ecb_cold
1157	rxvt_term::scr_forwardindex () NOTHROW	1172	rxvt_term::scr_forwardindex () noexcept
1158	{	1173	{
1159	if (screen.cur.col < ncol - 1)	1174	if (screen.cur.col < ncol - 1)
1160	scr_gotorc (0, 1, R_RELATIVE | C_RELATIVE);	1175	scr_gotorc (0, 1, R_RELATIVE | C_RELATIVE);
1161	else	1176	else
1162	{	1177	{
…		…
1175	/* ------------------------------------------------------------------------- */	1190	/* ------------------------------------------------------------------------- */
1176	/*	1191	/*
1177	* Goto Row/Column	1192	* Goto Row/Column
1178	*/	1193	*/
1179	void	1194	void
1180	rxvt_term::scr_gotorc (int row, int col, int relative) NOTHROW	1195	rxvt_term::scr_gotorc (int row, int col, int relative) noexcept
1181	{	1196	{
1182	want_refresh = 1;	1197	want_refresh = 1;
1183	ZERO_SCROLLBACK ();	1198	ZERO_SCROLLBACK ();
1184		1199
1185	screen.cur.col = relative & C_RELATIVE ? screen.cur.col + col : col;	1200	screen.cur.col = relative & C_RELATIVE ? screen.cur.col + col : col;
…		…
1224	/* ------------------------------------------------------------------------- */	1239	/* ------------------------------------------------------------------------- */
1225	/*	1240	/*
1226	* direction should be UP or DN	1241	* direction should be UP or DN
1227	*/	1242	*/
1228	void	1243	void
1229	rxvt_term::scr_index (enum page_dirn direction) NOTHROW	1244	rxvt_term::scr_index (enum page_dirn direction) noexcept
1230	{	1245	{
1231	int dirn;
1232
1233	want_refresh = 1;	1246	want_refresh = 1;
1234	ZERO_SCROLLBACK ();	1247	ZERO_SCROLLBACK ();
1235		1248
1236	dirn = ((direction == UP) ? 1 : -1);
1237
1238	screen.flags &= ~Screen_WrapNext;	1249	screen.flags &= ~Screen_WrapNext;
1239		1250
1240	if ((screen.cur.row == screen.bscroll && direction == UP)	1251	if ((screen.cur.row == screen.bscroll && direction == UP)
1241	|| (screen.cur.row == screen.tscroll && direction == DN))	1252	|| (screen.cur.row == screen.tscroll && direction == DN))
1242	scr_scroll_text (screen.tscroll, screen.bscroll, dirn);	1253	scr_scroll_text (screen.tscroll, screen.bscroll, direction);
1243	else	1254	else
1244	screen.cur.row += dirn;	1255	screen.cur.row += direction;
1245		1256
1246	clamp_it (screen.cur.row, 0, nrow - 1);	1257	clamp_it (screen.cur.row, 0, nrow - 1);
1247	selection_check (0);	1258	selection_check (0);
1248	}	1259	}
1249		1260
…		…
1254	* XTERM_SEQ: Clear line to left : ESC [ 1 K	1265	* XTERM_SEQ: Clear line to left : ESC [ 1 K
1255	* XTERM_SEQ: Clear whole line : ESC [ 2 K	1266	* XTERM_SEQ: Clear whole line : ESC [ 2 K
1256	* extension: clear to right unless wrapped: ESC [ 3 K	1267	* extension: clear to right unless wrapped: ESC [ 3 K
1257	*/	1268	*/
1258	void	1269	void
1259	rxvt_term::scr_erase_line (int mode) NOTHROW	1270	rxvt_term::scr_erase_line (int mode) noexcept
1260	{	1271	{
1261	unsigned int col, num;	1272	unsigned int col, num;
1262		1273
1263	want_refresh = 1;	1274	want_refresh = 1;
1264	ZERO_SCROLLBACK ();	1275	ZERO_SCROLLBACK ();
…		…
1318	* XTERM_SEQ: Clear screen after cursor : ESC [ 0 J	1329	* XTERM_SEQ: Clear screen after cursor : ESC [ 0 J
1319	* XTERM_SEQ: Clear screen before cursor: ESC [ 1 J	1330	* XTERM_SEQ: Clear screen before cursor: ESC [ 1 J
1320	* XTERM_SEQ: Clear whole screen : ESC [ 2 J	1331	* XTERM_SEQ: Clear whole screen : ESC [ 2 J
1321	*/	1332	*/
1322	void	1333	void
1323	rxvt_term::scr_erase_screen (int mode) NOTHROW	1334	rxvt_term::scr_erase_screen (int mode) noexcept
1324	{	1335	{
1325	int num;	1336	int num;
1326	int32_t row;	1337	int32_t row;
1327	rend_t ren;	1338	rend_t ren;
1328	XGCValues gcvalue;	1339	XGCValues gcvalue;
…		…
1398	}	1409	}
1399	}	1410	}
1400		1411
1401	#if !ENABLE_MINIMAL	1412	#if !ENABLE_MINIMAL
1402	void	1413	void
1403	rxvt_term::scr_erase_savelines () NOTHROW	1414	rxvt_term::scr_erase_savelines () noexcept
1404	{	1415	{
1405	want_refresh = 1;	1416	want_refresh = 1;
1406	ZERO_SCROLLBACK ();	1417	ZERO_SCROLLBACK ();
1407		1418
1408	top_row = 0;	1419	top_row = 0;
…		…
1412	/* ------------------------------------------------------------------------- */	1423	/* ------------------------------------------------------------------------- */
1413	/*	1424	/*
1414	* Fill the screen with `E's	1425	* Fill the screen with `E's
1415	* XTERM_SEQ: Screen Alignment Test: ESC # 8	1426	* XTERM_SEQ: Screen Alignment Test: ESC # 8
1416	*/	1427	*/
1417	void	1428	void ecb_cold
1418	rxvt_term::scr_E () NOTHROW	1429	rxvt_term::scr_E () noexcept
1419	{	1430	{
1420	rend_t fs;	1431	rend_t fs;
1421		1432
1422	want_refresh = 1;	1433	want_refresh = 1;
1423	ZERO_SCROLLBACK ();	1434	ZERO_SCROLLBACK ();
…		…
1448	/* ------------------------------------------------------------------------- */	1459	/* ------------------------------------------------------------------------- */
1449	/*	1460	/*
1450	* Insert/Delete <count> lines	1461	* Insert/Delete <count> lines
1451	*/	1462	*/
1452	void	1463	void
1453	rxvt_term::scr_insdel_lines (int count, int insdel) NOTHROW	1464	rxvt_term::scr_insdel_lines (int count, int insdel) noexcept
1454	{	1465	{
1455	int end;	1466	int end;
1456		1467
1457	ZERO_SCROLLBACK ();	1468	ZERO_SCROLLBACK ();
1458		1469
…		…
1478	/* ------------------------------------------------------------------------- */	1489	/* ------------------------------------------------------------------------- */
1479	/*	1490	/*
1480	* Insert/Delete <count> characters from the current position	1491	* Insert/Delete <count> characters from the current position
1481	*/	1492	*/
1482	void	1493	void
1483	rxvt_term::scr_insdel_chars (int count, int insdel) NOTHROW	1494	rxvt_term::scr_insdel_chars (int count, int insdel) noexcept
1484	{	1495	{
1485	want_refresh = 1;	1496	want_refresh = 1;
1486	ZERO_SCROLLBACK ();	1497	ZERO_SCROLLBACK ();
1487		1498
1488	if (count <= 0)	1499	if (count <= 0)
…		…
1586	/* ------------------------------------------------------------------------- */	1597	/* ------------------------------------------------------------------------- */
1587	/*	1598	/*
1588	* Set the scrolling region	1599	* Set the scrolling region
1589	* XTERM_SEQ: Set region <top> - <bot> inclusive: ESC [ <top> ; <bot> r	1600	* XTERM_SEQ: Set region <top> - <bot> inclusive: ESC [ <top> ; <bot> r
1590	*/	1601	*/
1591	void	1602	void ecb_cold
1592	rxvt_term::scr_scroll_region (int top, int bot) NOTHROW	1603	rxvt_term::scr_scroll_region (int top, int bot) noexcept
1593	{	1604	{
1594	max_it (top, 0);	1605	max_it (top, 0);
1595	min_it (bot, nrow - 1);	1606	min_it (bot, nrow - 1);
1596		1607
1597	if (top > bot)	1608	if (top > bot)
…		…
1606	/*	1617	/*
1607	* Make the cursor visible/invisible	1618	* Make the cursor visible/invisible
1608	* XTERM_SEQ: Make cursor visible : ESC [ ? 25 h	1619	* XTERM_SEQ: Make cursor visible : ESC [ ? 25 h
1609	* XTERM_SEQ: Make cursor invisible: ESC [ ? 25 l	1620	* XTERM_SEQ: Make cursor invisible: ESC [ ? 25 l
1610	*/	1621	*/
1611	void	1622	void ecb_cold
1612	rxvt_term::scr_cursor_visible (int mode) NOTHROW	1623	rxvt_term::scr_cursor_visible (int mode) noexcept
1613	{	1624	{
1614	want_refresh = 1;	1625	want_refresh = 1;
1615		1626
1616	if (mode)	1627	if (mode)
1617	screen.flags |= Screen_VisibleCursor;	1628	screen.flags |= Screen_VisibleCursor;
…		…
1623	/*	1634	/*
1624	* Set/unset automatic wrapping	1635	* Set/unset automatic wrapping
1625	* XTERM_SEQ: Set Wraparound : ESC [ ? 7 h	1636	* XTERM_SEQ: Set Wraparound : ESC [ ? 7 h
1626	* XTERM_SEQ: Unset Wraparound: ESC [ ? 7 l	1637	* XTERM_SEQ: Unset Wraparound: ESC [ ? 7 l
1627	*/	1638	*/
1628	void	1639	void ecb_cold
1629	rxvt_term::scr_autowrap (int mode) NOTHROW	1640	rxvt_term::scr_autowrap (int mode) noexcept
1630	{	1641	{
1631	if (mode)	1642	if (mode)
1632	screen.flags |= Screen_Autowrap;	1643	screen.flags |= Screen_Autowrap;
1633	else	1644	else
1634	screen.flags &= ~(Screen_Autowrap | Screen_WrapNext);	1645	screen.flags &= ~(Screen_Autowrap | Screen_WrapNext);
…		…
1642	* Relative mode: line numbers are relative to top margin of scrolling region	1653	* Relative mode: line numbers are relative to top margin of scrolling region
1643	* and the cursor cannot be moved outside.	1654	* and the cursor cannot be moved outside.
1644	* XTERM_SEQ: Set Absolute: ESC [ ? 6 h	1655	* XTERM_SEQ: Set Absolute: ESC [ ? 6 h
1645	* XTERM_SEQ: Set Relative: ESC [ ? 6 l	1656	* XTERM_SEQ: Set Relative: ESC [ ? 6 l
1646	*/	1657	*/
1647	void	1658	void ecb_cold
1648	rxvt_term::scr_relative_origin (int mode) NOTHROW	1659	rxvt_term::scr_relative_origin (int mode) noexcept
1649	{	1660	{
1650	if (mode)	1661	if (mode)
1651	screen.flags |= Screen_Relative;	1662	screen.flags |= Screen_Relative;
1652	else	1663	else
1653	screen.flags &= ~Screen_Relative;	1664	screen.flags &= ~Screen_Relative;
…		…
1659	/*	1670	/*
1660	* Set insert/replace mode	1671	* Set insert/replace mode
1661	* XTERM_SEQ: Set Insert mode : ESC [ ? 4 h	1672	* XTERM_SEQ: Set Insert mode : ESC [ ? 4 h
1662	* XTERM_SEQ: Set Replace mode: ESC [ ? 4 l	1673	* XTERM_SEQ: Set Replace mode: ESC [ ? 4 l
1663	*/	1674	*/
1664	void	1675	void ecb_cold
1665	rxvt_term::scr_insert_mode (int mode) NOTHROW	1676	rxvt_term::scr_insert_mode (int mode) noexcept
1666	{	1677	{
1667	if (mode)	1678	if (mode)
1668	screen.flags |= Screen_Insert;	1679	screen.flags |= Screen_Insert;
1669	else	1680	else
1670	screen.flags &= ~Screen_Insert;	1681	screen.flags &= ~Screen_Insert;
…		…
1675	* Set/Unset tabs	1686	* Set/Unset tabs
1676	* XTERM_SEQ: Set tab at current column : ESC H	1687	* XTERM_SEQ: Set tab at current column : ESC H
1677	* XTERM_SEQ: Clear tab at current column: ESC [ 0 g	1688	* XTERM_SEQ: Clear tab at current column: ESC [ 0 g
1678	* XTERM_SEQ: Clear all tabs : ESC [ 3 g	1689	* XTERM_SEQ: Clear all tabs : ESC [ 3 g
1679	*/	1690	*/
1680	void	1691	void ecb_cold
1681	rxvt_term::scr_set_tab (int mode) NOTHROW	1692	rxvt_term::scr_set_tab (int mode) noexcept
1682	{	1693	{
1683	if (mode < 0)	1694	if (mode < 0)
1684	memset (tabs, 0, ncol);	1695	memset (tabs, 0, ncol);
1685	else if (screen.cur.col < ncol)	1696	else if (screen.cur.col < ncol)
1686	tabs [screen.cur.col] = !!mode;	1697	tabs [screen.cur.col] = !!mode;
…		…
1691	* Set reverse/normal video	1702	* Set reverse/normal video
1692	* XTERM_SEQ: Reverse video: ESC [ ? 5 h	1703	* XTERM_SEQ: Reverse video: ESC [ ? 5 h
1693	* XTERM_SEQ: Normal video : ESC [ ? 5 l	1704	* XTERM_SEQ: Normal video : ESC [ ? 5 l
1694	*/	1705	*/
1695	void	1706	void
1696	rxvt_term::scr_rvideo_mode (bool on) NOTHROW	1707	rxvt_term::scr_rvideo_mode (bool on) noexcept
1697	{	1708	{
1698	rvideo_mode = on;	1709	rvideo_mode = on;
1699		1710
1700	#ifndef NO_BELL	1711	#ifndef NO_BELL
1701	on ^= rvideo_bell;	1712	on ^= rvideo_bell;
…		…
1703		1714
1704	if (rvideo_state != on)	1715	if (rvideo_state != on)
1705	{	1716	{
1706	rvideo_state = on;	1717	rvideo_state = on;
1707		1718
		1719	#if OFF_FOCUS_FADING
		1720	if (rs[Rs_fade])
		1721	{
		1722	::swap (pix_colors_focused[Color_fg], pix_colors_focused[Color_bg]);
		1723	::swap (pix_colors_unfocused[Color_fg], pix_colors_unfocused[Color_bg]);
		1724	}
		1725	else
		1726	#endif
1708	::swap (pix_colors[Color_fg], pix_colors[Color_bg]);	1727	::swap (pix_colors[Color_fg], pix_colors[Color_bg]);
1709	#ifdef HAVE_BG_PIXMAP	1728	#ifdef HAVE_IMG
1710	if (bg_pixmap == None)	1729	if (bg_img == 0)
1711	#endif	1730	#endif
1712	XSetWindowBackground (dpy, vt, pix_colors[Color_bg]);	1731	XSetWindowBackground (dpy, vt, pix_colors[Color_bg]);
1713		1732
1714	XGCValues gcvalue;	1733	XGCValues gcvalue;
1715	gcvalue.foreground = pix_colors[Color_fg];	1734	gcvalue.foreground = pix_colors[Color_fg];
…		…
1724	/* ------------------------------------------------------------------------- */	1743	/* ------------------------------------------------------------------------- */
1725	/*	1744	/*
1726	* Report current cursor position	1745	* Report current cursor position
1727	* XTERM_SEQ: Report position: ESC [ 6 n	1746	* XTERM_SEQ: Report position: ESC [ 6 n
1728	*/	1747	*/
1729	void	1748	void ecb_cold
1730	rxvt_term::scr_report_position () NOTHROW	1749	rxvt_term::scr_report_position () noexcept
1731	{	1750	{
1732	tt_printf ("\033[%d;%dR", screen.cur.row + 1, screen.cur.col + 1);	1751	tt_printf ("\033[%d;%dR", screen.cur.row + 1, screen.cur.col + 1);
1733	}	1752	}
1734		1753
1735	/* ------------------------------------------------------------------------- *	1754	/* ------------------------------------------------------------------------- *
…		…
1737	* ------------------------------------------------------------------------- */	1756	* ------------------------------------------------------------------------- */
1738		1757
1739	/*	1758	/*
1740	* Set font style	1759	* Set font style
1741	*/	1760	*/
1742	void	1761	void ecb_cold
1743	rxvt_term::set_font_style () NOTHROW	1762	rxvt_term::set_font_style () noexcept
1744	{	1763	{
1745	#if 0	1764	#if 0
1746	switch (charsets [screen.charset])	1765	switch (charsets [screen.charset])
1747	{	1766	{
1748	case '0': /* DEC Special Character & Line Drawing Set */	1767	case '0': /* DEC Special Character & Line Drawing Set */
…		…
1769	* XTERM_SEQ: Invoke G0 character set: CTRL-O	1788	* XTERM_SEQ: Invoke G0 character set: CTRL-O
1770	* XTERM_SEQ: Invoke G1 character set: CTRL-N	1789	* XTERM_SEQ: Invoke G1 character set: CTRL-N
1771	* XTERM_SEQ: Invoke G2 character set: ESC N	1790	* XTERM_SEQ: Invoke G2 character set: ESC N
1772	* XTERM_SEQ: Invoke G3 character set: ESC O	1791	* XTERM_SEQ: Invoke G3 character set: ESC O
1773	*/	1792	*/
1774	void	1793	void ecb_cold
1775	rxvt_term::scr_charset_choose (int set) NOTHROW	1794	rxvt_term::scr_charset_choose (int set) noexcept
1776	{	1795	{
1777	screen.charset = set;	1796	screen.charset = set;
1778	set_font_style ();	1797	set_font_style ();
1779	}	1798	}
1780		1799
…		…
1786	* XTERM_SEQ: Set G2 character set: ESC * <C>	1805	* XTERM_SEQ: Set G2 character set: ESC * <C>
1787	* XTERM_SEQ: Set G3 character set: ESC + <C>	1806	* XTERM_SEQ: Set G3 character set: ESC + <C>
1788	* See set_font_style for possible values for <C>	1807	* See set_font_style for possible values for <C>
1789	*/	1808	*/
1790	void	1809	void
1791	rxvt_term::scr_charset_set (int set, unsigned int ch) NOTHROW	1810	rxvt_term::scr_charset_set (int set, unsigned int ch) noexcept
1792	{	1811	{
1793	charsets[set] = (unsigned char)ch;	1812	charsets[set] = (unsigned char)ch;
1794	set_font_style ();	1813	set_font_style ();
1795	}	1814	}
1796		1815
…		…
1800	* ------------------------------------------------------------------------- */	1819	* ------------------------------------------------------------------------- */
1801		1820
1802	/*	1821	/*
1803	* refresh matching text.	1822	* refresh matching text.
1804	*/	1823	*/
1805	bool	1824	bool ecb_cold
1806	rxvt_term::scr_refresh_rend (rend_t mask, rend_t value) NOTHROW	1825	rxvt_term::scr_refresh_rend (rend_t mask, rend_t value) noexcept
1807	{	1826	{
1808	bool found = false;	1827	bool found = false;
1809		1828
1810	for (int i = 0; i < nrow; i++)	1829	for (int i = 0; i < nrow; i++)
1811	{	1830	{
…		…
1829	PART_BEG = 0,	1848	PART_BEG = 0,
1830	PART_END,	1849	PART_END,
1831	RC_COUNT	1850	RC_COUNT
1832	};	1851	};
1833		1852
1834	void	1853	void ecb_hot
1835	rxvt_term::scr_expose (int x, int y, int ewidth, int eheight, bool refresh) NOTHROW	1854	rxvt_term::scr_expose (int x, int y, int ewidth, int eheight, bool refresh) noexcept
1836	{	1855	{
1837	int i;	1856	int i;
1838	row_col_t rc[RC_COUNT];	1857	row_col_t rc[RC_COUNT];
1839		1858
1840	if (!drawn_buf) /* sanity check */	1859	if (!drawn_buf) /* sanity check */
…		…
1874	/* ------------------------------------------------------------------------- */	1893	/* ------------------------------------------------------------------------- */
1875	/*	1894	/*
1876	* Refresh the entire screen	1895	* Refresh the entire screen
1877	*/	1896	*/
1878	void	1897	void
1879	rxvt_term::scr_touch (bool refresh) NOTHROW	1898	rxvt_term::scr_touch (bool refresh) noexcept
1880	{	1899	{
1881	scr_expose (0, 0, vt_width, vt_height, refresh);	1900	scr_expose (0, 0, vt_width, vt_height, refresh);
1882	}	1901	}
1883		1902
1884	/* ------------------------------------------------------------------------- */	1903	/* ------------------------------------------------------------------------- */
1885	/*	1904	/*
1886	* Move the display so that the line represented by scrollbar value Y is at	1905	* Move the display so that the line represented by scrollbar value Y is at
1887	* the top of the screen	1906	* the top of the screen
1888	*/	1907	*/
1889	void	1908	void
1890	rxvt_term::scr_move_to (int y, int len) NOTHROW	1909	rxvt_term::scr_move_to (int y, int len) noexcept
1891	{	1910	{
1892	scr_changeview ((top_row - nrow) * (len - y) / len + (nrow - 1));	1911	// lerp (y, 0, len, top_row, nrow - 1)
		1912	scr_changeview (top_row + (nrow - 1 - top_row) * y / len);
1893	}	1913	}
1894		1914
1895	/* ------------------------------------------------------------------------- */	1915	/* ------------------------------------------------------------------------- */
1896	/*	1916	/*
1897	* Page the screen up/down nlines	1917	* Page the screen up/down nlines
1898	* direction should be UP or DN	1918	* direction should be UP or DN
1899	*/	1919	*/
1900	bool	1920	bool
1901	rxvt_term::scr_page (enum page_dirn direction, int nlines) NOTHROW	1921	rxvt_term::scr_page (int nlines) noexcept
1902	{	1922	{
1903	int new_view_start =
1904	direction == UP ? view_start - nlines
1905	: view_start + nlines;
1906
1907	return scr_changeview (new_view_start);	1923	return scr_changeview (view_start - nlines);
1908	}	1924	}
1909		1925
1910	bool	1926	bool
1911	rxvt_term::scr_changeview (int new_view_start) NOTHROW	1927	rxvt_term::scr_changeview (int new_view_start) noexcept
1912	{	1928	{
1913	clamp_it (new_view_start, top_row, 0);	1929	clamp_it (new_view_start, top_row, 0);
1914		1930
1915	if (new_view_start == view_start)	1931	if (new_view_start == view_start)
1916	return false;	1932	return false;
…		…
1934	}	1950	}
1935	#endif	1951	#endif
1936		1952
1937	/* ------------------------------------------------------------------------- */	1953	/* ------------------------------------------------------------------------- */
1938	void	1954	void
1939	rxvt_term::scr_bell () NOTHROW	1955	rxvt_term::scr_bell () noexcept
1940	{	1956	{
1941	#ifndef NO_BELL	1957	#ifndef NO_BELL
1942		1958
1943	# ifndef NO_MAPALERT	1959	# ifndef NO_MAPALERT
1944	# ifdef MAPALERT_OPTION	1960	# ifdef MAPALERT_OPTION
…		…
1965	HOOK_INVOKE ((this, HOOK_BELL, DT_END));	1981	HOOK_INVOKE ((this, HOOK_BELL, DT_END));
1966	#endif	1982	#endif
1967	}	1983	}
1968		1984
1969	/* ------------------------------------------------------------------------- */	1985	/* ------------------------------------------------------------------------- */
1970	void	1986	void ecb_cold
1971	rxvt_term::scr_printscreen (int fullhist) NOTHROW	1987	rxvt_term::scr_printscreen (int fullhist) noexcept
1972	{	1988	{
1973	#ifdef PRINTPIPE	1989	#ifdef PRINTPIPE
1974	int nrows, row_start;	1990	int nrows, row_start;
1975	FILE *fd = popen_printer ();	1991	FILE *fd = popen_printer ();
1976		1992
…		…
2024	/*	2040	/*
2025	* Refresh the screen	2041	* Refresh the screen
2026	* drawn_text/drawn_rend contain the screen information before the update.	2042	* drawn_text/drawn_rend contain the screen information before the update.
2027	* screen.text/screen.rend contain what the screen will change to.	2043	* screen.text/screen.rend contain what the screen will change to.
2028	*/	2044	*/
2029	void	2045	void ecb_hot
2030	rxvt_term::scr_refresh () NOTHROW	2046	rxvt_term::scr_refresh () noexcept
2031	{	2047	{
2032	int16_t col, row, /* column/row we're processing */	2048	int16_t col, row, /* column/row we're processing */
2033	ocrow; /* old cursor row */	2049	ocrow; /* old cursor row */
2034	int i; /* tmp */	2050	int i; /* tmp */
2035	#ifndef NO_CURSORCOLOR
2036	rend_t cc1; /* store colours at cursor position (s) */
2037	#endif
2038	rend_t *crp; // cursor rendition pointer
2039	rend_t ccol1, /* Cursor colour */	2051	rend_t ccol1, /* Cursor colour */
2040	ccol2; /* Cursor colour2 */	2052	ccol2; /* Cursor colour2 */
		2053	rend_t cur_rend;
		2054	int cur_col;
		2055	int cursorwidth;
2041		2056
2042	want_refresh = 0; /* screen is current */	2057	want_refresh = 0; /* screen is current */
2043		2058
2044	if (refresh_type == NO_REFRESH || !mapped)	2059	if (refresh_type == NO_REFRESH || !mapped)
2045	return;	2060	return;
…		…
2049	*/	2064	*/
2050	refresh_count = 0;	2065	refresh_count = 0;
2051		2066
2052	unsigned int old_screen_flags = screen.flags;	2067	unsigned int old_screen_flags = screen.flags;
2053	bool have_bg = 0;	2068	bool have_bg = 0;
2054	#ifdef HAVE_BG_PIXMAP	2069	#ifdef HAVE_IMG
2055	have_bg = bg_pixmap != None;	2070	have_bg = bg_img != 0;
2056	#endif	2071	#endif
2057	ocrow = oldcursor.row; /* is there an old outline cursor on screen? */	2072	ocrow = oldcursor.row; /* is there an old outline cursor on screen? */
2058		2073
2059	/*	2074	/*
2060	* B: reverse any characters which are selected	2075	* B: reverse any characters which are selected
…		…
2070		2085
2071	/*	2086	/*
2072	* C: set the cursor character (s)	2087	* C: set the cursor character (s)
2073	*/	2088	*/
2074	{	2089	{
2075	bool setoldcursor;
2076
2077	#ifdef CURSOR_BLINK	2090	#ifdef CURSOR_BLINK
2078	if (hidden_cursor)	2091	if (hidden_cursor)
2079	showcursor = 0;	2092	showcursor = 0;
2080	#endif	2093	#endif
2081		2094
…		…
2084	int col = screen.cur.col;	2097	int col = screen.cur.col;
2085		2098
2086	while (col && ROW(screen.cur.row).t[col] == NOCHAR)	2099	while (col && ROW(screen.cur.row).t[col] == NOCHAR)
2087	col--;	2100	col--;
2088		2101
		2102	cursorwidth = 1;
		2103	while (col + cursorwidth < ncol
		2104	&& ROW(screen.cur.row).t[col + cursorwidth] == NOCHAR)
		2105	cursorwidth++;
		2106
2089	crp = &ROW(screen.cur.row).r[col];	2107	cur_rend = ROW(screen.cur.row).r[col];
		2108	cur_col = col;
2090		2109
2091	#ifndef NO_CURSORCOLOR	2110	#ifndef NO_CURSORCOLOR
2092	cc1 = *crp & (RS_fgMask | RS_bgMask);
2093	if (ISSET_PIXCOLOR (Color_cursor))	2111	if (ISSET_PIXCOLOR (Color_cursor))
2094	ccol1 = Color_cursor;	2112	ccol1 = Color_cursor;
2095	else	2113	else
2096	#endif	2114	#endif
2097	#ifdef CURSOR_COLOR_IS_RENDITION_COLOR	2115	#ifdef CURSOR_COLOR_IS_RENDITION_COLOR
…		…
2109	ccol2 = bgcolor_of (rstyle);	2127	ccol2 = bgcolor_of (rstyle);
2110	#else	2128	#else
2111	ccol2 = Color_bg;	2129	ccol2 = Color_bg;
2112	#endif	2130	#endif
2113		2131
2114	if (focus)	2132	if (focus && cursor_type == 0)
2115	{	2133	{
2116	if (option (Opt_cursorUnderline))	2134	rend_t rend = cur_rend;
2117	*crp ^= RS_Uline;	2135
2118	else
2119	{
2120	*crp ^= RS_RVid;	2136	rend ^= RS_RVid;
2121	*crp = SET_FGCOLOR (*crp, ccol1);	2137	rend = SET_FGCOLOR (rend, ccol1);
2122	*crp = SET_BGCOLOR (*crp, ccol2);	2138	rend = SET_BGCOLOR (rend, ccol2);
2123	}	2139
		2140	scr_set_char_rend (ROW(screen.cur.row), cur_col, rend);
2124	}	2141	}
2125	}	2142	}
2126		2143
2127	/* make sure no outline cursor is left around */	2144	/* make sure no outline cursor is left around */
2128	setoldcursor = 0;	2145	if (ocrow != -1 && ocrow < nrow && oldcursor.col < ncol)
2129	if (ocrow != -1)	2146	drawn_buf[ocrow].r[oldcursor.col] ^= (RS_RVid | RS_Uline);
		2147
		2148	// save the current cursor coordinates if the cursor is visible
		2149	// and either the window is unfocused or the cursor style is
		2150	// underline or vertical bar, so as to clear the outline cursor in
		2151	// the next refresh if the cursor moves or becomes invisible
		2152	if (showcursor && (!focus || cursor_type != 0) && screen.cur.row - view_start < nrow)
2130	{	2153	{
2131	if (screen.cur.row - view_start != ocrow	2154	oldcursor.row = screen.cur.row - view_start;
2132	|| screen.cur.col != oldcursor.col)	2155	oldcursor.col = screen.cur.col;
2133	{
2134	if (ocrow < nrow
2135	&& oldcursor.col < ncol)
2136	drawn_buf[ocrow].r[oldcursor.col] ^= (RS_RVid | RS_Uline);
2137
2138	if (focus || !showcursor)
2139	oldcursor.row = -1;
2140	else
2141	setoldcursor = 1;
2142	}
2143	}	2156	}
2144	else if (!focus)	2157	else
2145	setoldcursor = 1;
2146
2147	if (setoldcursor)
2148	{
2149	if (screen.cur.row - view_start >= nrow)
2150	oldcursor.row = -1;	2158	oldcursor.row = -1;
2151	else
2152	{
2153	oldcursor.row = screen.cur.row - view_start;
2154	oldcursor.col = screen.cur.col;
2155	}
2156	}
2157	}	2159	}
2158		2160
2159	#ifndef NO_SLOW_LINK_SUPPORT	2161	#ifndef NO_SLOW_LINK_SUPPORT
2160	/*	2162	/*
2161	* D: CopyArea pass - very useful for slower links	2163	* D: CopyArea pass - very useful for slower links
…		…
2242	int ypixel = (int)Row2Pixel (row);	2244	int ypixel = (int)Row2Pixel (row);
2243		2245
2244	for (col = 0; col < ncol; col++)	2246	for (col = 0; col < ncol; col++)
2245	{	2247	{
2246	/* compare new text with old - if exactly the same then continue */	2248	/* compare new text with old - if exactly the same then continue */
2247	if (stp[col] == dtp[col] /* Must match characters to skip. */	2249	if (stp[col] == dtp[col] && RS_SAME (srp[col], drp[col]))
2248	&& (RS_SAME (srp[col], drp[col]) /* Either rendition the same or */
2249	|| (stp[col] == ' ' /* space w/ no background change */
2250	&& GET_BGATTR (srp[col]) == GET_BGATTR (drp[col]))))
2251	continue;	2250	continue;
2252		2251
2253	// redraw one or more characters	2252	// redraw one or more characters
2254		2253
2255	// seek to the beginning of wide characters	2254	// seek to the beginning of wide characters
…		…
2427	else	2426	else
2428	font->draw (*drawable, xpixel, ypixel, text, count, fore, back);	2427	font->draw (*drawable, xpixel, ypixel, text, count, fore, back);
2429		2428
2430	if (ecb_unlikely (rend & RS_Uline && font->descent > 1 && fore != back))	2429	if (ecb_unlikely (rend & RS_Uline && font->descent > 1 && fore != back))
2431	{	2430	{
		2431	if (showcursor && focus && row == screen.cur.row
		2432	&& IN_RANGE_EXC (col, cur_col, cur_col + cursorwidth))
		2433	XSetForeground (dpy, gc, pix_colors[ccol1]);
		2434	else
2432	#if ENABLE_FRILLS	2435	#if ENABLE_FRILLS
2433	if (ISSET_PIXCOLOR (Color_underline))	2436	if (ISSET_PIXCOLOR (Color_underline))
2434	XSetForeground (dpy, gc, pix_colors[Color_underline]);	2437	XSetForeground (dpy, gc, pix_colors[Color_underline]);
2435	else	2438	else
2436	#endif	2439	#endif
…		…
2448	*/	2451	*/
2449	if (showcursor)	2452	if (showcursor)
2450	{	2453	{
2451	if (focus)	2454	if (focus)
2452	{	2455	{
2453	if (option (Opt_cursorUnderline))	2456	if (cursor_type == 0)
2454	*crp ^= RS_Uline;	2457	scr_set_char_rend (ROW(screen.cur.row), cur_col, cur_rend);
2455	else	2458	else if (oldcursor.row >= 0)
2456	{	2459	{
2457	*crp ^= RS_RVid;	2460	XSetForeground (dpy, gc, pix_colors[ccol1]);
2458	#ifndef NO_CURSORCOLOR	2461	if (cursor_type == 1)
2459	*crp = (*crp & ~ (RS_fgMask | RS_bgMask)) | cc1;	2462	XFillRectangle (dpy, vt, gc,
2460	#endif	2463	Col2Pixel (cur_col),
		2464	Row2Pixel (oldcursor.row + 1) - 2,
		2465	Width2Pixel (1),
		2466	2);
		2467	else
		2468	XFillRectangle (dpy, vt, gc,
		2469	Col2Pixel (cur_col),
		2470	Row2Pixel (oldcursor.row),
		2471	2,
		2472	Height2Pixel (1));
2461	}	2473	}
2462	}	2474	}
2463	else if (oldcursor.row >= 0)	2475	else if (oldcursor.row >= 0)
2464	{	2476	{
2465	int cursorwidth = 1;
2466	int col = oldcursor.col;
2467
2468	while (col && ROW(screen.cur.row).t[col] == NOCHAR)
2469	col--;
2470
2471	while (col + cursorwidth < ncol
2472	&& drawn_buf[oldcursor.row].t[col + cursorwidth] == NOCHAR)
2473	cursorwidth++;
2474
2475	#ifndef NO_CURSORCOLOR
2476	if (ISSET_PIXCOLOR (Color_cursor))
2477	XSetForeground (dpy, gc, pix_colors[Color_cursor]);
2478	else
2479	#endif
2480	XSetForeground (dpy, gc, pix_colors[ccol1]);	2477	XSetForeground (dpy, gc, pix_colors[ccol1]);
2481		2478
2482	XDrawRectangle (dpy, vt, gc,	2479	XDrawRectangle (dpy, vt, gc,
2483	Col2Pixel (col),	2480	Col2Pixel (cur_col),
2484	Row2Pixel (oldcursor.row),	2481	Row2Pixel (oldcursor.row),
2485	(unsigned int) (Width2Pixel (cursorwidth) - 1),	2482	(unsigned int) (Width2Pixel (cursorwidth) - 1),
2486	(unsigned int) (Height2Pixel (1) - lineSpace - 1));	2483	(unsigned int) (Height2Pixel (1) - 1));
2487	}	2484	}
2488	}	2485	}
2489		2486
2490	/*	2487	/*
2491	* H: cleanup selection	2488	* H: cleanup selection
…		…
2500	screen.flags = old_screen_flags;	2497	screen.flags = old_screen_flags;
2501	num_scr = 0;	2498	num_scr = 0;
2502	num_scr_allow = 1;	2499	num_scr_allow = 1;
2503	}	2500	}
2504		2501
2505	void	2502	void ecb_cold
2506	rxvt_term::scr_remap_chars (line_t &l) NOTHROW	2503	rxvt_term::scr_remap_chars (line_t &l) noexcept
2507	{	2504	{
2508	if (!l.t)	2505	if (!l.valid ())
2509	return;	2506	return;
2510		2507
2511	l.touch (); // maybe a bit of an overkill, but it's not performance-relevant	2508	l.touch (); // maybe a bit of an overkill, but it's not performance-relevant
2512		2509
2513	for (int i = ncol; i--; )	2510	for (int i = ncol; i--; )
2514	l.r[i] = SET_FONT (l.r[i], FONTSET (l.r[i])->find_font (l.t[i]));	2511	l.r[i] = SET_FONT (l.r[i], FONTSET (l.r[i])->find_font (l.t[i]));
2515	}	2512	}
2516		2513
2517	void	2514	void ecb_cold
2518	rxvt_term::scr_remap_chars () NOTHROW	2515	rxvt_term::scr_remap_chars () noexcept
2519	{	2516	{
2520	for (int i = total_rows; i--; )	2517	for (int i = total_rows; i--; )
2521	scr_remap_chars (row_buf [i]);	2518	scr_remap_chars (row_buf [i]);
2522		2519
2523	for (int i = nrow; i--; )	2520	for (int i = nrow; i--; )
…		…
2525	scr_remap_chars (drawn_buf [i]);	2522	scr_remap_chars (drawn_buf [i]);
2526	scr_remap_chars (swap_buf [i]);	2523	scr_remap_chars (swap_buf [i]);
2527	}	2524	}
2528	}	2525	}
2529		2526
2530	void	2527	void ecb_cold
2531	rxvt_term::scr_recolour (bool refresh) NOTHROW	2528	rxvt_term::scr_recolor (bool refresh) noexcept
2532	{	2529	{
2533	bool transparent = false;	2530	bool transparent = false;
2534		2531
2535	#ifdef HAVE_BG_PIXMAP	2532	#ifdef HAVE_IMG
2536	if (bg_pixmap != None)	2533	if (bg_img != 0)
2537	{	2534	{
2538	# ifdef ENABLE_TRANSPARENCY	2535	# if ENABLE_TRANSPARENCY
2539	if (bg_flags & BG_IS_TRANSPARENT)	2536	if (bg_flags & BG_IS_TRANSPARENT)
2540	{	2537	{
2541	XSetWindowBackgroundPixmap (dpy, parent, bg_pixmap);	2538	XSetWindowBackgroundPixmap (dpy, parent, bg_img->pm);
2542	XSetWindowBackgroundPixmap (dpy, vt, ParentRelative);	2539	XSetWindowBackgroundPixmap (dpy, vt, ParentRelative);
2543		2540
2544	transparent = true;	2541	transparent = true;
2545	}	2542	}
2546	else	2543	else
2547	# endif	2544	# endif
2548	{	2545	{
2549	XSetWindowBackground (dpy, parent, pix_colors[Color_border]);	2546	XSetWindowBackground (dpy, parent, pix_colors[Color_border]);
2550	XSetWindowBackgroundPixmap (dpy, vt, bg_pixmap);	2547	XSetWindowBackgroundPixmap (dpy, vt, bg_img->pm);
2551	}	2548	}
2552	}	2549	}
2553	else	2550	else
2554	#endif	2551	#endif
2555	{	2552	{
…		…
2557	XSetWindowBackground (dpy, vt, pix_colors[Color_bg]);	2554	XSetWindowBackground (dpy, vt, pix_colors[Color_bg]);
2558	}	2555	}
2559		2556
2560	XClearWindow (dpy, parent);	2557	XClearWindow (dpy, parent);
2561		2558
2562	if (scrollBar.win)	2559	if (scrollBar.state && scrollBar.win)
2563	{	2560	{
2564	if (transparent)	2561	if (transparent)
2565	XSetWindowBackgroundPixmap (dpy, scrollBar.win, ParentRelative);	2562	XSetWindowBackgroundPixmap (dpy, scrollBar.win, ParentRelative);
2566	else	2563	else
2567	XSetWindowBackground (dpy, scrollBar.win, pix_colors[Color_border]);	2564	XSetWindowBackground (dpy, scrollBar.win, pix_colors[scrollBar.color ()]);
2568	scrollBar.state = SB_STATE_IDLE;	2565	scrollBar.state = SB_STATE_IDLE;
2569	scrollBar.show (0);	2566	scrollBar.show (0);
2570	}	2567	}
2571		2568
2572	if (refresh)	2569	if (refresh)
…		…
2577	want_refresh = 1;	2574	want_refresh = 1;
2578	}	2575	}
2579		2576
2580	/* ------------------------------------------------------------------------- */	2577	/* ------------------------------------------------------------------------- */
2581	void	2578	void
2582	rxvt_term::scr_clear (bool really) NOTHROW	2579	rxvt_term::scr_clear (bool really) noexcept
2583	{	2580	{
2584	if (!mapped)	2581	if (!mapped)
2585	return;	2582	return;
2586		2583
2587	num_scr_allow = 0;	2584	num_scr_allow = 0;
…		…
2590	if (really)	2587	if (really)
2591	XClearWindow (dpy, vt);	2588	XClearWindow (dpy, vt);
2592	}	2589	}
2593		2590
2594	void	2591	void
2595	rxvt_term::scr_xor_rect (int beg_row, int beg_col, int end_row, int end_col, rend_t rstyle1, rend_t rstyle2) NOTHROW	2592	rxvt_term::scr_xor_rect (int beg_row, int beg_col, int end_row, int end_col, rend_t rstyle1, rend_t rstyle2) noexcept
2596	{	2593	{
2597	int view_end = view_start + nrow;	2594	int view_end = view_start + nrow;
2598	int row, col;	2595	int row, col;
2599		2596
2600	for (row = max (beg_row, view_start); row <= min (end_row, view_end); row++)	2597	for (row = max (beg_row, view_start); row <= min (end_row, view_end); row++)
…		…
2612	srp[col] ^= rstyle2;	2609	srp[col] ^= rstyle2;
2613	}	2610	}
2614	}	2611	}
2615		2612
2616	void	2613	void
2617	rxvt_term::scr_xor_span (int beg_row, int beg_col, int end_row, int end_col, rend_t rstyle) NOTHROW	2614	rxvt_term::scr_xor_span (int beg_row, int beg_col, int end_row, int end_col, rend_t rstyle) noexcept
2618	{	2615	{
2619	int view_end = view_start + nrow;	2616	int view_end = view_start + nrow;
2620	int row, col;	2617	int row, col;
2621		2618
2622	if (beg_row >= view_start)	2619	if (beg_row >= view_start)
…		…
2638	for (rend_t *srp = ROW(row).r; col < end_col; col++)	2635	for (rend_t *srp = ROW(row).r; col < end_col; col++)
2639	srp[col] ^= rstyle;	2636	srp[col] ^= rstyle;
2640	}	2637	}
2641		2638
2642	/* ------------------------------------------------------------------------- */	2639	/* ------------------------------------------------------------------------- */
2643	void	2640	void ecb_hot
2644	rxvt_term::scr_reverse_selection () NOTHROW	2641	rxvt_term::scr_reverse_selection () noexcept
2645	{	2642	{
2646	if (selection.op	2643	if (selection.op
2647	&& current_screen == selection.screen	2644	&& current_screen == selection.screen
2648	&& selection.end.row >= view_start)	2645	&& selection.end.row >= view_start)
2649	{	2646	{
…		…
2665	* Dump the whole scrollback and screen to the passed filedescriptor. The	2662	* Dump the whole scrollback and screen to the passed filedescriptor. The
2666	* invoking routine must close the fd.	2663	* invoking routine must close the fd.
2667	*/	2664	*/
2668	#if 0	2665	#if 0
2669	void	2666	void
2670	rxvt_term::scr_dump (int fd) NOTHROW	2667	rxvt_term::scr_dump (int fd) noexcept
2671	{	2668	{
2672	// if this method is needed, it can be implemented by factoring the	2669	// if this method is needed, it can be implemented by factoring the
2673	// relevant code in scr_printscreen	2670	// relevant code in scr_printscreen
2674	}	2671	}
2675	#endif	2672	#endif
2676		2673
2677	/* ------------------------------------------------------------------------- *	2674	/* ------------------------------------------------------------------------- *
2678	* CHARACTER SELECTION *	2675	* CHARACTER SELECTION *
2679	* ------------------------------------------------------------------------- */	2676	* ------------------------------------------------------------------------- */
2680	void	2677	void
2681	rxvt_term::selection_check (int check_more) NOTHROW	2678	rxvt_term::selection_check (int check_more) noexcept
2682	{	2679	{
2683	if (!selection.op)	2680	if (!selection.op)
2684	return;	2681	return;
2685		2682
2686	if (!IN_RANGE_EXC (selection.beg.row, top_row, nrow)	2683	if (!IN_RANGE_EXC (selection.beg.row, top_row, nrow)
…		…
2691	&& !ROWCOL_IS_BEFORE (screen.cur, selection.beg)	2688	&& !ROWCOL_IS_BEFORE (screen.cur, selection.beg)
2692	&& ROWCOL_IS_BEFORE (screen.cur, selection.end)))	2689	&& ROWCOL_IS_BEFORE (screen.cur, selection.end)))
2693	CLEAR_ALL_SELECTION ();	2690	CLEAR_ALL_SELECTION ();
2694	}	2691	}
2695		2692
		2693	void
		2694	rxvt_term::selection_changed () noexcept
		2695	{
		2696	line_t &r1 = ROW (selection.beg.row);
		2697	while (selection.beg.col < r1.l && r1.t [selection.beg.col] == NOCHAR)
		2698	++selection.beg.col;
		2699
		2700	line_t &r2 = ROW (selection.end.row);
		2701	while (selection.end.col < r2.l && r2.t [selection.end.col] == NOCHAR)
		2702	++selection.end.col;
		2703
		2704	want_refresh = 1;
		2705	}
		2706
2696	/* ------------------------------------------------------------------------- */	2707	/* ------------------------------------------------------------------------- */
2697	/*	2708	/*
2698	* Paste a selection direct to the command fd	2709	* Paste a selection direct to the command fd
2699	*/	2710	*/
2700	void	2711	void
2701	rxvt_term::tt_paste (char *data, unsigned int len) NOTHROW	2712	rxvt_term::tt_paste (char *data, unsigned int len) noexcept
2702	{	2713	{
2703	/* convert normal newline chars into common keyboard Return key sequence */	2714	/* convert normal newline chars into common keyboard Return key sequence */
2704	for (unsigned int i = 0; i < len; i++)	2715	for (unsigned int i = 0; i < len; i++)
2705	if (data[i] == C0_LF)	2716	if (data[i] == C0_LF)
2706	data[i] = C0_CR;	2717	data[i] = C0_CR;
…		…
2713	if (priv_modes & PrivMode_BracketPaste)	2724	if (priv_modes & PrivMode_BracketPaste)
2714	tt_printf ("\x1b[201~");	2725	tt_printf ("\x1b[201~");
2715	}	2726	}
2716		2727
2717	void	2728	void
2718	rxvt_term::paste (char *data, unsigned int len) NOTHROW	2729	rxvt_term::paste (char *data, unsigned int len) noexcept
2719	{	2730	{
2720	if (HOOK_INVOKE ((this, HOOK_TT_PASTE, DT_STR_LEN, data, len, DT_END)))	2731	if (HOOK_INVOKE ((this, HOOK_TT_PASTE, DT_STR_LEN, data, len, DT_END)))
2721	return;	2732	return;
2722		2733
2723	tt_paste (data, len);	2734	tt_paste (data, len);
…		…
2729	* if the requested selection has no owner or is empty CUT_BUFFER0 is used	2740	* if the requested selection has no owner or is empty CUT_BUFFER0 is used
2730	* as fallback	2741	* as fallback
2731	* EXT: button 2 release	2742	* EXT: button 2 release
2732	*/	2743	*/
2733	void	2744	void
2734	rxvt_term::selection_request (Time tm, int selnum) NOTHROW	2745	rxvt_term::selection_request (Time tm, int selnum) noexcept
2735	{	2746	{
2736	if (!selection_req)	2747	if (!selection_req)
2737	{	2748	{
2738	selection_req = new rxvt_selection (display, selnum, tm, vt, xa[XA_VT_SELECTION], this);	2749	selection_req = new rxvt_selection (display, selnum, tm, vt, xa[XA_VT_SELECTION], this);
2739	selection_req->run ();	2750	selection_req->run ();
…		…
2744	/*	2755	/*
2745	* Clear all selected text	2756	* Clear all selected text
2746	* EXT: SelectionClear	2757	* EXT: SelectionClear
2747	*/	2758	*/
2748	void	2759	void
2749	rxvt_term::selection_clear (bool clipboard) NOTHROW	2760	rxvt_term::selection_clear (bool clipboard) noexcept
2750	{	2761	{
2751	if (!clipboard)	2762	if (!clipboard)
2752	{	2763	{
2753	want_refresh = 1;	2764	want_refresh = 1;
2754	free (selection.text);	2765	free (selection.text);
…		…
2839	if (*t == NOCHAR)	2850	if (*t == NOCHAR)
2840	t++;	2851	t++;
2841	#if ENABLE_COMBINING	2852	#if ENABLE_COMBINING
2842	else if (IS_COMPOSE (*t))	2853	else if (IS_COMPOSE (*t))
2843	{	2854	{
2844	int len = rxvt_composite.expand (*t, 0);	2855	int len = rxvt_composite.expand (*t);
2845		2856
2846	extra -= (len - 1);	2857	extra -= (len - 1);
2847		2858
2848	if (extra < 0)	2859	if (extra < 0)
2849	{	2860	{
…		…
2896		2907
2897	selection_grab (tm);	2908	selection_grab (tm);
2898	}	2909	}
2899		2910
2900	bool	2911	bool
2901	rxvt_term::selection_grab (Time tm, bool clipboard) NOTHROW	2912	rxvt_term::selection_grab (Time tm, bool clipboard) noexcept
2902	{	2913	{
2903	Atom sel;	2914	Atom sel;
2904		2915
2905	if (!clipboard)	2916	if (!clipboard)
2906	{	2917	{
…		…
2939	/* ------------------------------------------------------------------------- */	2950	/* ------------------------------------------------------------------------- */
2940	/*	2951	/*
2941	* Mark or select text based upon number of clicks: 1, 2, or 3	2952	* Mark or select text based upon number of clicks: 1, 2, or 3
2942	* EXT: button 1 press	2953	* EXT: button 1 press
2943	*/	2954	*/
2944	void	2955	void ecb_cold
2945	rxvt_term::selection_click (int clicks, int x, int y) NOTHROW	2956	rxvt_term::selection_click (int clicks, int x, int y) noexcept
2946	{	2957	{
2947	clicks = ((clicks - 1) % 3) + 1;	2958	clicks = ((clicks - 1) % 3) + 1;
2948	selection.clicks = clicks; /* save clicks so extend will work */	2959	selection.clicks = clicks; /* save clicks so extend will work */
2949		2960
2950	if (clicks == 2 && !selection.rect	2961	if (clicks == 2 && !selection.rect
…		…
2968		2979
2969	/* ------------------------------------------------------------------------- */	2980	/* ------------------------------------------------------------------------- */
2970	/*	2981	/*
2971	* Mark a selection at the specified col/row	2982	* Mark a selection at the specified col/row
2972	*/	2983	*/
2973	void	2984	void ecb_cold
2974	rxvt_term::selection_start_colrow (int col, int row) NOTHROW	2985	rxvt_term::selection_start_colrow (int col, int row) noexcept
2975	{	2986	{
2976	want_refresh = 1;	2987	want_refresh = 1;
2977		2988
2978	selection.mark.row = row + view_start;	2989	selection.mark.row = row + view_start;
2979	selection.mark.col = col;	2990	selection.mark.col = col;
…		…
3001	* Word select: select text for 2 clicks	3012	* Word select: select text for 2 clicks
3002	* We now only find out the boundary in one direction	3013	* We now only find out the boundary in one direction
3003	*/	3014	*/
3004		3015
3005	/* what do we want: spaces/tabs are delimiters or cutchars or non-cutchars */	3016	/* what do we want: spaces/tabs are delimiters or cutchars or non-cutchars */
3006	#define DELIMIT_TEXT(x) \	3017	#define DELIMIT_TEXT(x) \
3007	(unicode::is_space (x) ? 2 : (x) <= 0xff && !!strchr (rs[Rs_cutchars], (x)))	3018	(unicode::is_space (x) ? 2 : (x) <= 0xff && !!strchr (rs[Rs_cutchars], (x)))
3008	#define DELIMIT_REND(x) 1	3019	#define DELIMIT_REND(x) 1
3009		3020
3010	void	3021	void ecb_cold
3011	rxvt_term::selection_delimit_word (enum page_dirn dirn, const row_col_t *mark, row_col_t *ret) NOTHROW	3022	rxvt_term::selection_delimit_word (enum page_dirn dirn, const row_col_t *mark, row_col_t *ret) noexcept
3012	{	3023	{
3013	int col, row, dirnadd, tcol, trow, w1, w2;	3024	int col, row, dirnadd, tcol, trow, w1, w2;
3014	row_col_t bound;	3025	row_col_t bound;
3015	text_t *stp;	3026	text_t *stp;
3016	rend_t *srp;	3027	rend_t *srp;
…		…
3089	* EXT: button 3 press; button 1 or 3 drag	3100	* EXT: button 3 press; button 1 or 3 drag
3090	* flag == 0 ==> button 1	3101	* flag == 0 ==> button 1
3091	* flag == 1 ==> button 3 press	3102	* flag == 1 ==> button 3 press
3092	* flag == 2 ==> button 3 motion	3103	* flag == 2 ==> button 3 motion
3093	*/	3104	*/
3094	void	3105	void ecb_cold
3095	rxvt_term::selection_extend (int x, int y, int flag) NOTHROW	3106	rxvt_term::selection_extend (int x, int y, int flag) noexcept
3096	{	3107	{
3097	int col = clamp (Pixel2Col (x), 0, ncol);	3108	int col = clamp (Pixel2Col (x), 0, ncol);
3098	int row = clamp (Pixel2Row (y), 0, nrow - 1);	3109	int row = clamp (Pixel2Row (y), 0, nrow - 1);
3099		3110
3100	/*	3111	/*
…		…
3125		3136
3126	/* ------------------------------------------------------------------------- */	3137	/* ------------------------------------------------------------------------- */
3127	/*	3138	/*
3128	* Extend the selection to the specified col/row	3139	* Extend the selection to the specified col/row
3129	*/	3140	*/
3130	void	3141	void ecb_cold
3131	rxvt_term::selection_extend_colrow (int32_t col, int32_t row, int button3, int buttonpress, int clickchange) NOTHROW	3142	rxvt_term::selection_extend_colrow (int32_t col, int32_t row, int button3, int buttonpress, int clickchange) noexcept
3132	{	3143	{
3133	row_col_t pos;	3144	row_col_t pos;
3134	enum {	3145	enum {
3135	LEFT, RIGHT	3146	LEFT, RIGHT
3136	} closeto = RIGHT;	3147	} closeto = RIGHT;
3137
3138	want_refresh = 1;
3139		3148
3140	switch (selection.op)	3149	switch (selection.op)
3141	{	3150	{
3142	case SELECTION_INIT:	3151	case SELECTION_INIT:
3143	CLEAR_SELECTION ();	3152	CLEAR_SELECTION ();
…		…
3323		3332
3324	#if !ENABLE_MINIMAL	3333	#if !ENABLE_MINIMAL
3325	if (selection.rect && selection.beg.col > selection.end.col)	3334	if (selection.rect && selection.beg.col > selection.end.col)
3326	::swap (selection.beg.col, selection.end.col);	3335	::swap (selection.beg.col, selection.end.col);
3327	#endif	3336	#endif
		3337
		3338	selection_changed ();
3328	}	3339	}
3329		3340
3330	#if !ENABLE_MINIMAL	3341	#if !ENABLE_MINIMAL
3331	void	3342	void ecb_cold
3332	rxvt_term::selection_remove_trailing_spaces () NOTHROW	3343	rxvt_term::selection_remove_trailing_spaces () noexcept
3333	{	3344	{
3334	int32_t end_col, end_row;	3345	int32_t end_col, end_row;
3335	text_t *stp;	3346	text_t *stp;
3336		3347
3337	end_col = selection.end.col;	3348	end_col = selection.end.col;
…		…
3374	/* ------------------------------------------------------------------------- */	3385	/* ------------------------------------------------------------------------- */
3375	/*	3386	/*
3376	* Double click on button 3 when already selected	3387	* Double click on button 3 when already selected
3377	* EXT: button 3 double click	3388	* EXT: button 3 double click
3378	*/	3389	*/
3379	void	3390	void ecb_cold
3380	rxvt_term::selection_rotate (int x, int y) NOTHROW	3391	rxvt_term::selection_rotate (int x, int y) noexcept
3381	{	3392	{
3382	selection.clicks = selection.clicks % 3 + 1;	3393	selection.clicks = selection.clicks % 3 + 1;
3383	selection_extend_colrow (Pixel2Col (x), Pixel2Row (y), 1, 0, 1);	3394	selection_extend_colrow (Pixel2Col (x), Pixel2Row (y), 1, 0, 1);
3384	}	3395	}
3385		3396
3386	/* ------------------------------------------------------------------------- */	3397	/* ------------------------------------------------------------------------- */
3387	/*	3398	/*
3388	* Respond to a request for our current selection	3399	* Respond to a request for our current selection
3389	* EXT: SelectionRequest	3400	* EXT: SelectionRequest
3390	*/	3401	*/
3391	void	3402	void ecb_cold
3392	rxvt_term::selection_send (const XSelectionRequestEvent &rq) NOTHROW	3403	rxvt_term::selection_send (const XSelectionRequestEvent &rq) noexcept
3393	{	3404	{
3394	Atom property = rq.property == None ? rq.target : rq.property;	3405	Atom property = rq.property == None ? rq.target : rq.property;
3395	XSelectionEvent ev;	3406	XSelectionEvent ev;
3396		3407
3397	ev.type = SelectionNotify;	3408	ev.type = SelectionNotify;
…		…
3489	cl = selection.clip_text;	3500	cl = selection.clip_text;
3490	selectlen = selection.clip_len;	3501	selectlen = selection.clip_len;
3491	}	3502	}
3492	else	3503	else
3493	{	3504	{
3494	cl = L"";	3505	cl = (wchar_t *)L"";
3495	selectlen = 0;	3506	selectlen = 0;
3496	}	3507	}
3497		3508
3498	#if !ENABLE_MINIMAL	3509	#if !ENABLE_MINIMAL
3499	// xlib is horribly broken with respect to UTF8_STRING, and nobody cares to fix it	3510	// xlib is horribly broken with respect to UTF8_STRING, and nobody cares to fix it
…		…
3529		3540
3530	XSendEvent (dpy, rq.requestor, False, 0L, (XEvent *)&ev);	3541	XSendEvent (dpy, rq.requestor, False, 0L, (XEvent *)&ev);
3531	}	3542	}
3532		3543
3533	/* ------------------------------------------------------------------------- */	3544	/* ------------------------------------------------------------------------- */
3534	#ifdef USE_XIM	3545	#if USE_XIM
3535	void	3546	void ecb_cold
3536	rxvt_term::im_set_position (XPoint &pos) NOTHROW	3547	rxvt_term::im_set_position (XPoint &pos) noexcept
3537	{	3548	{
3538	XWindowAttributes xwa;	3549	XWindowAttributes xwa;
3539		3550
3540	XGetWindowAttributes (dpy, vt, &xwa);	3551	XGetWindowAttributes (dpy, vt, &xwa);
3541		3552
…		…
3544	}	3555	}
3545	#endif	3556	#endif
3546		3557
3547	#if ENABLE_OVERLAY	3558	#if ENABLE_OVERLAY
3548	void	3559	void
3549	rxvt_term::scr_overlay_new (int x, int y, int w, int h) NOTHROW	3560	rxvt_term::scr_overlay_new (int x, int y, int w, int h) noexcept
3550	{	3561	{
3551	if (nrow < 1 || ncol < 1)	3562	if (nrow < 1 || ncol < 1)
3552	return;	3563	return;
3553		3564
3554	want_refresh = 1;	3565	want_refresh = 1;
…		…
3599	*rp = r;	3610	*rp = r;
3600	}	3611	}
3601	}	3612	}
3602		3613
3603	void	3614	void
3604	rxvt_term::scr_overlay_off () NOTHROW	3615	rxvt_term::scr_overlay_off () noexcept
3605	{	3616	{
3606	if (!ov.text)	3617	if (!ov.text)
3607	return;	3618	return;
3608		3619
3609	want_refresh = 1;	3620	want_refresh = 1;
…		…
3617	delete [] ov.text; ov.text = 0;	3628	delete [] ov.text; ov.text = 0;
3618	delete [] ov.rend; ov.rend = 0;	3629	delete [] ov.rend; ov.rend = 0;
3619	}	3630	}
3620		3631
3621	void	3632	void
3622	rxvt_term::scr_overlay_set (int x, int y, text_t text, rend_t rend) NOTHROW	3633	rxvt_term::scr_overlay_set (int x, int y, text_t text, rend_t rend) noexcept
3623	{	3634	{
3624	if (!ov.text || x >= ov.w - 2 || y >= ov.h - 2)	3635	if (!ov.text || x >= ov.w - 2 || y >= ov.h - 2)
3625	return;	3636	return;
3626		3637
3627	x++, y++;	3638	x++, y++;
…		…
3629	ov.text[y][x] = text;	3640	ov.text[y][x] = text;
3630	ov.rend[y][x] = rend;	3641	ov.rend[y][x] = rend;
3631	}	3642	}
3632		3643
3633	void	3644	void
3634	rxvt_term::scr_overlay_set (int x, int y, const char *s) NOTHROW	3645	rxvt_term::scr_overlay_set (int x, int y, const char *s) noexcept
3635	{	3646	{
3636	while (*s)	3647	while (*s)
3637	scr_overlay_set (x++, y, *s++);	3648	scr_overlay_set (x++, y, *s++);
3638	}	3649	}
3639		3650
3640	void	3651	void
3641	rxvt_term::scr_overlay_set (int x, int y, const wchar_t *s) NOTHROW	3652	rxvt_term::scr_overlay_set (int x, int y, const wchar_t *s) noexcept
3642	{	3653	{
3643	while (*s)	3654	while (*s)
3644	{	3655	{
3645	text_t t = *s++;	3656	text_t t = *s++;
3646	int width = WCWIDTH (t);	3657	int width = WCWIDTH (t);
…		…
3652	}	3663	}
3653	}	3664	}
3654	}	3665	}
3655		3666
3656	void	3667	void
3657	rxvt_term::scr_swap_overlay () NOTHROW	3668	rxvt_term::scr_swap_overlay () noexcept
3658	{	3669	{
3659	if (!ov.text)	3670	if (!ov.text)
3660	return;	3671	return;
3661		3672
3662	// hide cursor if it is within the overlay area	3673	// hide cursor if it is within the overlay area

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