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

Comparing rxvt-unicode/src/screen.C (file contents):
Revision 1.222 by root, Wed Jan 11 05:14:26 2006 UTC vs.
Revision 1.250 by root, Wed Jan 25 13:24:45 2006 UTC

…		…
115	* SCREEN `COMMON' ROUTINES *	115	* SCREEN `COMMON' ROUTINES *
116	* ------------------------------------------------------------------------- */	116	* ------------------------------------------------------------------------- */
117		117
118	/* Fill part/all of a line with blanks. */	118	/* Fill part/all of a line with blanks. */
119	void	119	void
120	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
121	{	121	{
122	if (!l.t)	122	if (!l.t)
123	{	123	{
124	lalloc (l);	124	lalloc (l);
125	col = 0;	125	col = 0;
…		…
142	}	142	}
143		143
144	/* ------------------------------------------------------------------------- */	144	/* ------------------------------------------------------------------------- */
145	/* 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 */
146	void	146	void
147	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
148	{	148	{
149	scr_blank_line (l, 0, ncol, efs);	149	scr_blank_line (l, 0, ncol, efs);
150		150
151	l.l = 0;	151	l.l = 0;
152	l.f = 0;	152	l.f = 0;
…		…
173	nrow = 24;	173	nrow = 24;
174		174
175	if (ncol == prev_ncol && nrow == prev_nrow)	175	if (ncol == prev_ncol && nrow == prev_nrow)
176	return;	176	return;
177		177
		178	if (current_screen != PRIMARY)
		179	scr_swap_screen ();
		180
178	// we need at least two lines for wrapping to work correctly	181	// we need at least two lines for wrapping to work correctly
179	if (nrow + saveLines < 2)	182	while (nrow + saveLines < 2)
180	{	183	{
181	//TODO//FIXME	184	//TODO//FIXME
182	saveLines++;	185	saveLines++;
183	prev_nrow--;	186	prev_nrow--;
184	nsaved++;	187	top_row--;
185	}	188	}
186		189
187	want_refresh = 1;	190	want_refresh = 1;
188		191
189	int prev_total_rows = prev_nrow + saveLines;	192	int prev_total_rows = prev_nrow + saveLines;
…		…
195	if (!row_buf)	198	if (!row_buf)
196	{	199	{
197	/*	200	/*
198	* 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
199	*/	202	*/
200	nsaved = 0; /* no saved lines */	203	top_row = 0;
201	term_start = 0;	204	term_start = 0;
202		205
203	talloc = new rxvt_salloc (ncol * sizeof (text_t));	206	talloc = new rxvt_salloc (ncol * sizeof (text_t));
204	ralloc = new rxvt_salloc (ncol * sizeof (rend_t));	207	ralloc = new rxvt_salloc (ncol * sizeof (rend_t));
205		208
…		…
234	selection.text = NULL;	237	selection.text = NULL;
235	selection.len = 0;	238	selection.len = 0;
236	selection.op = SELECTION_CLEAR;	239	selection.op = SELECTION_CLEAR;
237	selection.screen = PRIMARY;	240	selection.screen = PRIMARY;
238	selection.clicks = 0;	241	selection.clicks = 0;
239	CLEAR_ALL_SELECTION ();	242	rvideo_state = rvideo_mode = false;
240	rvideo = 0;
241	}	243	}
242	else	244	else
243	{	245	{
244	/*	246	/*
245	* add or delete rows as appropriate	247	* add or delete rows as appropriate
…		…
276		278
277	line_t *old_buf = row_buf;	279	line_t *old_buf = row_buf;
278	row_buf = (line_t *)rxvt_calloc (total_rows + nrow, sizeof (line_t));	280	row_buf = (line_t *)rxvt_calloc (total_rows + nrow, sizeof (line_t));
279		281
280	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
281	int pend = MOD (term_start - nsaved , prev_total_rows);	283	int pend = MOD (term_start + top_row , prev_total_rows);
282	int q = total_rows; // rewrapped row	284	int q = total_rows; // rewrapped row
283		285
284	if (nsaved)	286	if (top_row)
285	{	287	{
286	// 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
287	// to come up with a lean and mean algorithm.	289	// to come up with a lean and mean algorithm.
288		290
289	row_col_t ocur = screen.cur;	291	row_col_t ocur = screen.cur;
290	ocur.row = MOD (term_start + ocur.row, prev_total_rows);	292	ocur.row = MOD (term_start + ocur.row, prev_total_rows);
291		293
…		…
325	qline->l = ncol;	327	qline->l = ncol;
326	qline->is_longer (1);	328	qline->is_longer (1);
327		329
328	int qcol = 0;	330	int qcol = 0;
329		331
		332	// see below for cursor adjustment rationale
		333	if (p == ocur.row)
		334	screen.cur.row = q - (total_rows - nrow);
		335
330	// fill a single destination line	336	// fill a single destination line
331	while (lofs < llen && qcol < ncol)	337	while (lofs < llen && qcol < ncol)
332	{	338	{
333	int prow = lofs / prev_ncol;	339	int prow = lofs / prev_ncol;
334	int pcol = lofs % prev_ncol;	340	int pcol = lofs % prev_ncol;
…		…
344		350
345	line_t &pline = old_buf [prow];	351	line_t &pline = old_buf [prow];
346		352
347	int len = min (min (prev_ncol - pcol, ncol - qcol), llen - lofs);	353	int len = min (min (prev_ncol - pcol, ncol - qcol), llen - lofs);
348		354
349	assert (len);
350	assert (pline.t);
351
352	memcpy (qline->t + qcol, pline.t + pcol, len * sizeof (text_t));	355	memcpy (qline->t + qcol, pline.t + pcol, len * sizeof (text_t));
353	memcpy (qline->r + qcol, pline.r + pcol, len * sizeof (rend_t));	356	memcpy (qline->r + qcol, pline.r + pcol, len * sizeof (rend_t));
354		357
355	lofs += len;	358	lofs += len;
356	qcol += len;	359	qcol += len;
…		…
362	scr_blank_line (*qline, qline->l, ncol - qline->l, DEFAULT_RSTYLE);	365	scr_blank_line (*qline, qline->l, ncol - qline->l, DEFAULT_RSTYLE);
363	}	366	}
364	while (p != pend && q > 0);	367	while (p != pend && q > 0);
365		368
366	term_start = total_rows - nrow;	369	term_start = total_rows - nrow;
367	nsaved = term_start - q;	370	top_row = q - term_start;
368		371
369	// make sure all terminal lines exist	372	// make sure all terminal lines exist
370	while (nsaved < 0)	373	while (top_row > 0)
371	scr_blank_screen_mem (ROW (-++nsaved), DEFAULT_RSTYLE);	374	scr_blank_screen_mem (ROW (--top_row), DEFAULT_RSTYLE);
372	}	375	}
373	else	376	else
374	{	377	{
375	// if no scrollback exists (yet), wing, instead of wrap	378	// if no scrollback exists (yet), wing, instead of wrap
376		379
…		…
389	}	392	}
390		393
391	term_start = 0;	394	term_start = 0;
392	}	395	}
393		396
394	#ifdef DEBUG_STRICT //TODO: remove
395	for (int i = -nsaved; i < nrow; i++)
396	assert (ROW (i).t);
397	#endif
398
399	free (old_buf);	397	free (old_buf);
400	delete old_ta;	398	delete old_ta;
401	delete old_ra;	399	delete old_ra;
402		400
403	clamp_it (screen.cur.row, 0, nrow - 1);	401	clamp_it (screen.cur.row, 0, nrow - 1);
404	clamp_it (screen.cur.col, 0, ncol - 1);	402	clamp_it (screen.cur.col, 0, ncol - 1);
405		403
406	if (tabs)
407	free (tabs);	404	free (tabs);
408	}	405	}
		406
		407	CLEAR_ALL_SELECTION ();
409		408
410	prev_nrow = nrow;	409	prev_nrow = nrow;
411	prev_ncol = ncol;	410	prev_ncol = ncol;
412		411
413	tabs = (char *)rxvt_malloc (ncol * sizeof (char));	412	tabs = (char *)rxvt_malloc (ncol * sizeof (char));
414		413
415	for (int col = ncol; col--; )	414	for (int col = ncol; col--; )
416	tabs [col] = col % TABSIZE == 0;	415	tabs [col] = col % TABSIZE == 0;
417		416
		417	if (current_screen != PRIMARY)
		418	scr_swap_screen ();
		419
418	tt_winch ();	420	tt_winch ();
419		421
420	HOOK_INVOKE ((this, HOOK_RESET, DT_END));	422	HOOK_INVOKE ((this, HOOK_RESET, DT_END));
421	}	423	}
422		424
423	/* ------------------------------------------------------------------------- */	425	/* ------------------------------------------------------------------------- */
424	/*	426	/*
425	* Free everything. That way malloc debugging can find leakage.	427	* Free everything. That way malloc debugging can find leakage.
426	*/	428	*/
427	void	429	void
428	rxvt_term::scr_release ()	430	rxvt_term::scr_release () NOTHROW
429	{	431	{
		432	if (row_buf)
		433	{
430	delete talloc; talloc = 0;	434	delete talloc; talloc = 0;
431	delete ralloc; ralloc = 0;	435	delete ralloc; ralloc = 0;
432		436
433	free (row_buf);	437	free (row_buf);
434	free (swap_buf);	438	free (swap_buf);
435	free (drawn_buf);	439	free (drawn_buf);
436	free (tabs);	440	free (tabs);
437		441
438	row_buf = 0; // signal that we freed all the arrays	442	row_buf = 0; // signal that we freed all the arrays
		443	}
439	}	444	}
440		445
441	/* ------------------------------------------------------------------------- */	446	/* ------------------------------------------------------------------------- */
442	/*	447	/*
443	* Hard reset	448	* Hard reset
…		…
448	scr_release ();	453	scr_release ();
449	prev_nrow = prev_ncol = 0;	454	prev_nrow = prev_ncol = 0;
450	scr_reset ();	455	scr_reset ();
451		456
452	scr_clear (true);	457	scr_clear (true);
453	scr_refresh (SLOW_REFRESH);	458	scr_refresh ();
454	}	459	}
455		460
456	/* ------------------------------------------------------------------------- *	461	/* ------------------------------------------------------------------------- *
457	* PROCESS SCREEN COMMANDS *	462	* PROCESS SCREEN COMMANDS *
458	* ------------------------------------------------------------------------- */	463	* ------------------------------------------------------------------------- */
…		…
460	* Save and Restore cursor	465	* Save and Restore cursor
461	* XTERM_SEQ: Save cursor : ESC 7	466	* XTERM_SEQ: Save cursor : ESC 7
462	* XTERM_SEQ: Restore cursor: ESC 8	467	* XTERM_SEQ: Restore cursor: ESC 8
463	*/	468	*/
464	void	469	void
465	rxvt_term::scr_cursor (int mode)	470	rxvt_term::scr_cursor (cursor_mode mode) NOTHROW
466	{	471	{
467	screen_t *s;	472	screen_t *s;
468		473
469	#if NSCREENS && !defined(NO_SECONDARY_SCREEN_CURSOR)	474	#if NSCREENS && !defined(NO_SECONDARY_SCREEN_CURSOR)
470	if (current_screen == SECONDARY)	475	if (current_screen == SECONDARY)
…		…
502	assert (s->cur.row >= 0);	507	assert (s->cur.row >= 0);
503	assert (s->cur.col >= 0);	508	assert (s->cur.col >= 0);
504	#endif	509	#endif
505	}	510	}
506		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
507	/* ------------------------------------------------------------------------- */	527	/* ------------------------------------------------------------------------- */
508	/*	528	/*
509	* Swap between primary and secondary screens	529	* Swap between primary and secondary screens
510	* XTERM_SEQ: Primary screen : ESC [ ? 4 7 h	530	* XTERM_SEQ: Primary screen : ESC [ ? 4 7 h
511	* XTERM_SEQ: Secondary screen: ESC [ ? 4 7 l	531	* XTERM_SEQ: Secondary screen: ESC [ ? 4 7 l
512	*/	532	*/
513	int	533	void
514	rxvt_term::scr_change_screen (int scrn)	534	rxvt_term::scr_change_screen (int scrn)
515	{	535	{
		536	if (scrn == current_screen)
		537	return;
		538
516	want_refresh = 1;	539	want_refresh = 1;
517	view_start = 0;	540	view_start = 0;
518		541
519	if (current_screen == scrn)
520	return scrn;
521
522	selection_check (2); /* check for boundary cross */	542	selection_check (2); /* check for boundary cross */
523		543
524	int i = current_screen; current_screen = scrn; scrn = i;	544	int i = current_screen; current_screen = scrn; scrn = i;
525
526	::swap (screen.cur.row, swap.cur.row);
527	::swap (screen.cur.col, swap.cur.col);
528
529	screen.cur.row = clamp (screen.cur.row, 0, prev_nrow - 1);
530	screen.cur.col = clamp (screen.cur.col, 0, prev_ncol - 1);
531		545
532	#if NSCREENS	546	#if NSCREENS
533	if (OPTION (Opt_secondaryScreen))	547	if (OPTION (Opt_secondaryScreen))
534	{	548	{
535	num_scr = 0;	549	num_scr = 0;
536		550
537	for (int i = prev_nrow; i--; )	551	scr_swap_screen ();
538	::swap (ROW(i), swap_buf [i]);
539		552
540	::swap (screen.charset, swap.charset);	553	::swap (screen.charset, swap.charset);
541	::swap (screen.flags, swap.flags);	554	::swap (screen.flags, swap.flags);
542	screen.flags |= Screen_VisibleCursor;	555	screen.flags |= Screen_VisibleCursor;
543	swap.flags |= Screen_VisibleCursor;	556	swap.flags |= Screen_VisibleCursor;
544	}	557	}
545	else	558	else
546	#endif	559	#endif
547	if (OPTION (Opt_secondaryScroll))	560	if (OPTION (Opt_secondaryScroll))
548	scr_scroll_text (0, prev_nrow - 1, prev_nrow);	561	scr_scroll_text (0, prev_nrow - 1, prev_nrow);
549
550	return scrn;
551	}	562	}
552		563
553	// clear WrapNext indicator, solidifying position on next line	564	// clear WrapNext indicator, solidifying position on next line
554	void	565	void
555	rxvt_term::scr_do_wrap ()	566	rxvt_term::scr_do_wrap () NOTHROW
556	{	567	{
557	if (!(screen.flags & Screen_WrapNext))	568	if (!(screen.flags & Screen_WrapNext))
558	return;	569	return;
559		570
560	screen.flags &= ~Screen_WrapNext;	571	screen.flags &= ~Screen_WrapNext;
…		…
570	/* ------------------------------------------------------------------------- */	581	/* ------------------------------------------------------------------------- */
571	/*	582	/*
572	* Change the colour for following text	583	* Change the colour for following text
573	*/	584	*/
574	void	585	void
575	rxvt_term::scr_color (unsigned int color, int fgbg)	586	rxvt_term::scr_color (unsigned int color, int fgbg) NOTHROW
576	{	587	{
577	if (!IN_RANGE_INC (color, minTermCOLOR, maxTermCOLOR))	588	if (!IN_RANGE_INC (color, minCOLOR, maxTermCOLOR))
578	color = fgbg;	589	color = fgbg;
579		590
580	if (fgbg == Color_fg)	591	if (fgbg == Color_fg)
581	rstyle = SET_FGCOLOR (rstyle, color);	592	rstyle = SET_FGCOLOR (rstyle, color);
582	else	593	else
…		…
586	/* ------------------------------------------------------------------------- */	597	/* ------------------------------------------------------------------------- */
587	/*	598	/*
588	* Change the rendition style for following text	599	* Change the rendition style for following text
589	*/	600	*/
590	void	601	void
591	rxvt_term::scr_rendition (int set, int style)	602	rxvt_term::scr_rendition (int set, int style) NOTHROW
592	{	603	{
593	if (set)	604	if (set)
594	rstyle |= style;	605	rstyle |= style;
595	else if (style == ~RS_None)	606	else if (style == ~RS_None)
596	rstyle = DEFAULT_RSTYLE;	607	rstyle = DEFAULT_RSTYLE;
…		…
603	* Scroll text between <row1> and <row2> inclusive, by <count> lines	614	* Scroll text between <row1> and <row2> inclusive, by <count> lines
604	* count positive ==> scroll up	615	* count positive ==> scroll up
605	* count negative ==> scroll down	616	* count negative ==> scroll down
606	*/	617	*/
607	int	618	int
608	rxvt_term::scr_scroll_text (int row1, int row2, int count)	619	rxvt_term::scr_scroll_text (int row1, int row2, int count) NOTHROW
609	{	620	{
610	if (count == 0 || (row1 > row2))	621	if (count == 0 || (row1 > row2))
611	return 0;	622	return 0;
612		623
613	want_refresh = 1;	624	want_refresh = 1;
614	num_scr += count;	625	num_scr += count;
615		626
616	if (count > 0	627	if (count > 0
617	&& row1 == 0	628	&& row1 == 0
618	&& row2 == nrow - 1
619	&& (current_screen == PRIMARY || OPTION (Opt_secondaryScroll)))	629	&& (current_screen == PRIMARY || OPTION (Opt_secondaryScroll)))
620	{	630	{
621	nsaved = min (nsaved + count, saveLines);	631	top_row = max (top_row - count, -saveLines);
622		632
623	HOOK_INVOKE ((this, HOOK_SCROLL_BACK, DT_INT, count, DT_INT, nsaved, DT_END));	633	// scroll everything up 'count' lines
		634	term_start = (term_start + count) % total_rows;
		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	}
624		667
625	term_start = (term_start + count) % total_rows;	668	// move and/or clear selection, if any
626
627	if (selection.op && current_screen == selection.screen)	669	if (selection.op && current_screen == selection.screen)
628	{	670	{
629	selection.beg.row -= count;	671	selection.beg.row -= count;
630	selection.end.row -= count;	672	selection.end.row -= count;
631	selection.mark.row -= count;	673	selection.mark.row -= count;
632		674
633	if (selection.beg.row < -nsaved	675	if (selection.beg.row < top_row
634	|| selection.end.row < -nsaved	676	|| selection.end.row < top_row
635	|| selection.mark.row < -nsaved)	677	|| selection.mark.row < top_row)
636	{	678	{
637	CLEAR_ALL_SELECTION ();	679	CLEAR_ALL_SELECTION ();
638	selection.op = SELECTION_CLEAR;	680	selection.op = SELECTION_CLEAR;
639	}	681	}
640	}	682	}
641		683
642	for (int i = count; i--; )	684	// finally move the view window, if desired
643	{
644	// basically thi is a slightly optimized scr_blank_screen_mem
645	// it is worth the effort on slower machines
646	line_t &l = ROW(row2 - i);
647
648	scr_blank_line (l, 0, l.l, rstyle);
649
650	l.l = 0;
651	l.f = 0;
652	}
653
654	if (OPTION (Opt_scrollWithBuffer)	685	if (OPTION (Opt_scrollWithBuffer)
655	&& view_start != 0	686	&& view_start != 0
656	&& view_start != saveLines)	687	&& view_start != -saveLines)
657	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));
658	}	692	}
659	else	693	else
660	{	694	{
661	if (selection.op && current_screen == selection.screen)	695	if (selection.op && current_screen == selection.screen)
662	{	696	{
…		…
708	/* ------------------------------------------------------------------------- */	742	/* ------------------------------------------------------------------------- */
709	/*	743	/*
710	* Add text given in <str> of length <len> to screen struct	744	* Add text given in <str> of length <len> to screen struct
711	*/	745	*/
712	void	746	void
713	rxvt_term::scr_add_lines (const wchar_t *str, int len, int minlines)	747	rxvt_term::scr_add_lines (const wchar_t *str, int len, int minlines) NOTHROW
714	{	748	{
715	if (len <= 0) /* sanity */	749	if (len <= 0) /* sanity */
716	return;	750	return;
717		751
718	unsigned char checksel;	752	unsigned char checksel;
…		…
724	ZERO_SCROLLBACK ();	758	ZERO_SCROLLBACK ();
725		759
726	if (minlines > 0)	760	if (minlines > 0)
727	{	761	{
728	minlines += screen.cur.row - screen.bscroll;	762	minlines += screen.cur.row - screen.bscroll;
		763	min_it (minlines, screen.cur.row - top_row);
729		764
730	if (minlines > 0	765	if (minlines > 0
731	&& screen.tscroll == 0	766	&& screen.tscroll == 0
732	&& screen.bscroll == nrow - 1)	767	&& screen.bscroll == nrow - 1)
733	{	768	{
…		…
738	}	773	}
739		774
740	#ifdef DEBUG_STRICT	775	#ifdef DEBUG_STRICT
741	assert (screen.cur.col < ncol);	776	assert (screen.cur.col < ncol);
742	assert (screen.cur.row < nrow	777	assert (screen.cur.row < nrow
743	&& screen.cur.row >= -nsaved);	778	&& screen.cur.row >= top_row);
744	#endif	779	#endif
745	int row = screen.cur.row;	780	int row = screen.cur.row;
746		781
747	checksel = selection.op && current_screen == selection.screen ? 1 : 0;	782	checksel = selection.op && current_screen == selection.screen ? 1 : 0;
748		783
…		…
794	CLEAR_SELECTION ();	829	CLEAR_SELECTION ();
795	}	830	}
796		831
797	if (screen.flags & Screen_WrapNext)	832	if (screen.flags & Screen_WrapNext)
798	{	833	{
799	max_it (line->l, ncol);
800	line->is_longer (1);
801
802	scr_do_wrap ();	834	scr_do_wrap ();
803		835
		836	line->l = ncol;
		837	line->is_longer (1);
		838
804	row = screen.cur.row;	839	row = screen.cur.row;
805	line = &ROW(row); /* _must_ refresh */	840	line = &ROW(row); /* _must_ refresh */
806	}	841	}
807		842
808	// some utf-8 decoders "decode" surrogate characters: let's fix this.	843	// some utf-8 decoders "decode" surrogate characters: let's fix this.
809	if (IN_RANGE_INC (c, 0xd800, 0xdfff))	844	if (IN_RANGE_INC (c, 0xd800, 0xdfff))
810	c = 0xfffd;	845	c = 0xfffd;
811		846
812	// rely on wcwidth to tell us the character width, at least for non-latin1	847	// rely on wcwidth to tell us the character width, do wcwidth before
813	// do wcwidth before further replacements, as wcwidth might return -1	848	// further replacements, as wcwidth might return -1 for the line
814	// for the line drawing characters below as they might be invalid in the current	849	// drawing characters below as they might be invalid in the current
815	// locale.	850	// locale.
816	int width = c < 0x100 ? 1 : wcwidth (c);	851	int width = WCWIDTH (c);
817		852
818	if (charsets [screen.charset] == '0') // DEC SPECIAL	853	if (charsets [screen.charset] == '0') // DEC SPECIAL
819	{	854	{
820	// vt100 special graphics and line drawing	855	// vt100 special graphics and line drawing
821	// 5f-7e standard vt100	856	// 5f-7e standard vt100
…		…
972	/*	1007	/*
973	* Process Backspace. Move back the cursor back a position, wrap if have to	1008	* Process Backspace. Move back the cursor back a position, wrap if have to
974	* XTERM_SEQ: CTRL-H	1009	* XTERM_SEQ: CTRL-H
975	*/	1010	*/
976	void	1011	void
977	rxvt_term::scr_backspace ()	1012	rxvt_term::scr_backspace () NOTHROW
978	{	1013	{
979	want_refresh = 1;	1014	want_refresh = 1;
980		1015
981	if (screen.cur.col == 0)	1016	if (screen.cur.col == 0)
982	{	1017	{
…		…
1000	* Process Horizontal Tab	1035	* Process Horizontal Tab
1001	* count: +ve = forward; -ve = backwards	1036	* count: +ve = forward; -ve = backwards
1002	* XTERM_SEQ: CTRL-I	1037	* XTERM_SEQ: CTRL-I
1003	*/	1038	*/
1004	void	1039	void
1005	rxvt_term::scr_tab (int count, bool ht)	1040	rxvt_term::scr_tab (int count, bool ht) NOTHROW
1006	{	1041	{
1007	int i, x;	1042	int i, x;
1008		1043
1009	want_refresh = 1;	1044	want_refresh = 1;
1010	i = x = screen.cur.col;	1045	i = x = screen.cur.col;
…		…
1077	* Move cursor left in row. If we're at the left boundary, shift everything	1112	* Move cursor left in row. If we're at the left boundary, shift everything
1078	* in that row right. Clear left column.	1113	* in that row right. Clear left column.
1079	*/	1114	*/
1080	#if ENABLE_FRILLS	1115	#if ENABLE_FRILLS
1081	void	1116	void
1082	rxvt_term::scr_backindex ()	1117	rxvt_term::scr_backindex () NOTHROW
1083	{	1118	{
1084	if (screen.cur.col > 0)	1119	if (screen.cur.col > 0)
1085	scr_gotorc (0, -1, R_RELATIVE | C_RELATIVE);	1120	scr_gotorc (0, -1, R_RELATIVE | C_RELATIVE);
1086	else	1121	else
1087	scr_insdel_chars (1, INSERT);	1122	scr_insdel_chars (1, INSERT);
…		…
1094	* Move cursor right in row. If we're at the right boundary, shift everything	1129	* Move cursor right in row. If we're at the right boundary, shift everything
1095	* in that row left. Clear right column.	1130	* in that row left. Clear right column.
1096	*/	1131	*/
1097	#if ENABLE_FRILLS	1132	#if ENABLE_FRILLS
1098	void	1133	void
1099	rxvt_term::scr_forwardindex ()	1134	rxvt_term::scr_forwardindex () NOTHROW
1100	{	1135	{
1101	if (screen.cur.col < ncol - 1)	1136	if (screen.cur.col < ncol - 1)
1102	scr_gotorc (0, 1, R_RELATIVE | C_RELATIVE);	1137	scr_gotorc (0, 1, R_RELATIVE | C_RELATIVE);
1103	else	1138	else
1104	{	1139	{
…		…
1117	/* ------------------------------------------------------------------------- */	1152	/* ------------------------------------------------------------------------- */
1118	/*	1153	/*
1119	* Goto Row/Column	1154	* Goto Row/Column
1120	*/	1155	*/
1121	void	1156	void
1122	rxvt_term::scr_gotorc (int row, int col, int relative)	1157	rxvt_term::scr_gotorc (int row, int col, int relative) NOTHROW
1123	{	1158	{
1124	want_refresh = 1;	1159	want_refresh = 1;
1125	ZERO_SCROLLBACK ();	1160	ZERO_SCROLLBACK ();
1126		1161
1127	screen.cur.col = relative & C_RELATIVE ? screen.cur.col + col : col;	1162	screen.cur.col = relative & C_RELATIVE ? screen.cur.col + col : col;
…		…
1165	/* ------------------------------------------------------------------------- */	1200	/* ------------------------------------------------------------------------- */
1166	/*	1201	/*
1167	* direction should be UP or DN	1202	* direction should be UP or DN
1168	*/	1203	*/
1169	void	1204	void
1170	rxvt_term::scr_index (enum page_dirn direction)	1205	rxvt_term::scr_index (enum page_dirn direction) NOTHROW
1171	{	1206	{
1172	int dirn;	1207	int dirn;
1173		1208
1174	want_refresh = 1;	1209	want_refresh = 1;
1175	ZERO_SCROLLBACK ();	1210	ZERO_SCROLLBACK ();
…		…
1194	* XTERM_SEQ: Clear line to right: ESC [ 0 K	1229	* XTERM_SEQ: Clear line to right: ESC [ 0 K
1195	* XTERM_SEQ: Clear line to left : ESC [ 1 K	1230	* XTERM_SEQ: Clear line to left : ESC [ 1 K
1196	* XTERM_SEQ: Clear whole line : ESC [ 2 K	1231	* XTERM_SEQ: Clear whole line : ESC [ 2 K
1197	*/	1232	*/
1198	void	1233	void
1199	rxvt_term::scr_erase_line (int mode)	1234	rxvt_term::scr_erase_line (int mode) NOTHROW
1200	{	1235	{
1201	unsigned int col, num;	1236	unsigned int col, num;
1202		1237
1203	want_refresh = 1;	1238	want_refresh = 1;
1204	ZERO_SCROLLBACK ();	1239	ZERO_SCROLLBACK ();
…		…
1248	* XTERM_SEQ: Clear screen after cursor : ESC [ 0 J	1283	* XTERM_SEQ: Clear screen after cursor : ESC [ 0 J
1249	* XTERM_SEQ: Clear screen before cursor: ESC [ 1 J	1284	* XTERM_SEQ: Clear screen before cursor: ESC [ 1 J
1250	* XTERM_SEQ: Clear whole screen : ESC [ 2 J	1285	* XTERM_SEQ: Clear whole screen : ESC [ 2 J
1251	*/	1286	*/
1252	void	1287	void
1253	rxvt_term::scr_erase_screen (int mode)	1288	rxvt_term::scr_erase_screen (int mode) NOTHROW
1254	{	1289	{
1255	int num;	1290	int num;
1256	int32_t row;	1291	int32_t row;
1257	rend_t ren;	1292	rend_t ren;
1258	XGCValues gcvalue;	1293	XGCValues gcvalue;
…		…
1318	}	1353	}
1319	}	1354	}
1320		1355
1321	#if ENABLE_FRILLS	1356	#if ENABLE_FRILLS
1322	void	1357	void
1323	rxvt_term::scr_erase_savelines ()	1358	rxvt_term::scr_erase_savelines () NOTHROW
1324	{	1359	{
1325	want_refresh = 1;	1360	want_refresh = 1;
1326	ZERO_SCROLLBACK ();	1361	ZERO_SCROLLBACK ();
1327		1362
1328	nsaved = 0;	1363	top_row = 0;
1329	}	1364	}
1330	#endif	1365	#endif
1331		1366
1332	/* ------------------------------------------------------------------------- */	1367	/* ------------------------------------------------------------------------- */
1333	/*	1368	/*
1334	* Fill the screen with `E's	1369	* Fill the screen with `E's
1335	* XTERM_SEQ: Screen Alignment Test: ESC # 8	1370	* XTERM_SEQ: Screen Alignment Test: ESC # 8
1336	*/	1371	*/
1337	void	1372	void
1338	rxvt_term::scr_E ()	1373	rxvt_term::scr_E () NOTHROW
1339	{	1374	{
1340	rend_t fs;	1375	rend_t fs;
1341		1376
1342	want_refresh = 1;	1377	want_refresh = 1;
1343	ZERO_SCROLLBACK ();	1378	ZERO_SCROLLBACK ();
…		…
1364	/* ------------------------------------------------------------------------- */	1399	/* ------------------------------------------------------------------------- */
1365	/*	1400	/*
1366	* Insert/Delete <count> lines	1401	* Insert/Delete <count> lines
1367	*/	1402	*/
1368	void	1403	void
1369	rxvt_term::scr_insdel_lines (int count, int insdel)	1404	rxvt_term::scr_insdel_lines (int count, int insdel) NOTHROW
1370	{	1405	{
1371	int end;	1406	int end;
1372		1407
1373	ZERO_SCROLLBACK ();	1408	ZERO_SCROLLBACK ();
1374		1409
…		…
1394	/* ------------------------------------------------------------------------- */	1429	/* ------------------------------------------------------------------------- */
1395	/*	1430	/*
1396	* Insert/Delete <count> characters from the current position	1431	* Insert/Delete <count> characters from the current position
1397	*/	1432	*/
1398	void	1433	void
1399	rxvt_term::scr_insdel_chars (int count, int insdel)	1434	rxvt_term::scr_insdel_chars (int count, int insdel) NOTHROW
1400	{	1435	{
1401	int col, row;	1436	int col, row;
1402	rend_t tr;	1437	rend_t tr;
1403		1438
1404	want_refresh = 1;	1439	want_refresh = 1;
…		…
1492	/*	1527	/*
1493	* Set the scrolling region	1528	* Set the scrolling region
1494	* XTERM_SEQ: Set region <top> - <bot> inclusive: ESC [ <top> ; <bot> r	1529	* XTERM_SEQ: Set region <top> - <bot> inclusive: ESC [ <top> ; <bot> r
1495	*/	1530	*/
1496	void	1531	void
1497	rxvt_term::scr_scroll_region (int top, int bot)	1532	rxvt_term::scr_scroll_region (int top, int bot) NOTHROW
1498	{	1533	{
1499	max_it (top, 0);	1534	max_it (top, 0);
1500	min_it (bot, nrow - 1);	1535	min_it (bot, nrow - 1);
1501		1536
1502	if (top > bot)	1537	if (top > bot)
…		…
1512	* Make the cursor visible/invisible	1547	* Make the cursor visible/invisible
1513	* XTERM_SEQ: Make cursor visible : ESC [ ? 25 h	1548	* XTERM_SEQ: Make cursor visible : ESC [ ? 25 h
1514	* XTERM_SEQ: Make cursor invisible: ESC [ ? 25 l	1549	* XTERM_SEQ: Make cursor invisible: ESC [ ? 25 l
1515	*/	1550	*/
1516	void	1551	void
1517	rxvt_term::scr_cursor_visible (int mode)	1552	rxvt_term::scr_cursor_visible (int mode) NOTHROW
1518	{	1553	{
1519	want_refresh = 1;	1554	want_refresh = 1;
1520		1555
1521	if (mode)	1556	if (mode)
1522	screen.flags |= Screen_VisibleCursor;	1557	screen.flags |= Screen_VisibleCursor;
…		…
1529	* Set/unset automatic wrapping	1564	* Set/unset automatic wrapping
1530	* XTERM_SEQ: Set Wraparound : ESC [ ? 7 h	1565	* XTERM_SEQ: Set Wraparound : ESC [ ? 7 h
1531	* XTERM_SEQ: Unset Wraparound: ESC [ ? 7 l	1566	* XTERM_SEQ: Unset Wraparound: ESC [ ? 7 l
1532	*/	1567	*/
1533	void	1568	void
1534	rxvt_term::scr_autowrap (int mode)	1569	rxvt_term::scr_autowrap (int mode) NOTHROW
1535	{	1570	{
1536	if (mode)	1571	if (mode)
1537	screen.flags |= Screen_Autowrap;	1572	screen.flags |= Screen_Autowrap;
1538	else	1573	else
1539	screen.flags &= ~(Screen_Autowrap | Screen_WrapNext);	1574	screen.flags &= ~(Screen_Autowrap | Screen_WrapNext);
…		…
1548	* and the cursor cannot be moved outside.	1583	* and the cursor cannot be moved outside.
1549	* XTERM_SEQ: Set Absolute: ESC [ ? 6 h	1584	* XTERM_SEQ: Set Absolute: ESC [ ? 6 h
1550	* XTERM_SEQ: Set Relative: ESC [ ? 6 l	1585	* XTERM_SEQ: Set Relative: ESC [ ? 6 l
1551	*/	1586	*/
1552	void	1587	void
1553	rxvt_term::scr_relative_origin (int mode)	1588	rxvt_term::scr_relative_origin (int mode) NOTHROW
1554	{	1589	{
1555	if (mode)	1590	if (mode)
1556	screen.flags |= Screen_Relative;	1591	screen.flags |= Screen_Relative;
1557	else	1592	else
1558	screen.flags &= ~Screen_Relative;	1593	screen.flags &= ~Screen_Relative;
…		…
1565	* Set insert/replace mode	1600	* Set insert/replace mode
1566	* XTERM_SEQ: Set Insert mode : ESC [ ? 4 h	1601	* XTERM_SEQ: Set Insert mode : ESC [ ? 4 h
1567	* XTERM_SEQ: Set Replace mode: ESC [ ? 4 l	1602	* XTERM_SEQ: Set Replace mode: ESC [ ? 4 l
1568	*/	1603	*/
1569	void	1604	void
1570	rxvt_term::scr_insert_mode (int mode)	1605	rxvt_term::scr_insert_mode (int mode) NOTHROW
1571	{	1606	{
1572	if (mode)	1607	if (mode)
1573	screen.flags |= Screen_Insert;	1608	screen.flags |= Screen_Insert;
1574	else	1609	else
1575	screen.flags &= ~Screen_Insert;	1610	screen.flags &= ~Screen_Insert;
…		…
1581	* XTERM_SEQ: Set tab at current column : ESC H	1616	* XTERM_SEQ: Set tab at current column : ESC H
1582	* XTERM_SEQ: Clear tab at current column: ESC [ 0 g	1617	* XTERM_SEQ: Clear tab at current column: ESC [ 0 g
1583	* XTERM_SEQ: Clear all tabs : ESC [ 3 g	1618	* XTERM_SEQ: Clear all tabs : ESC [ 3 g
1584	*/	1619	*/
1585	void	1620	void
1586	rxvt_term::scr_set_tab (int mode)	1621	rxvt_term::scr_set_tab (int mode) NOTHROW
1587	{	1622	{
1588	if (mode < 0)	1623	if (mode < 0)
1589	memset (tabs, 0, ncol * sizeof (char));	1624	memset (tabs, 0, ncol * sizeof (char));
1590	else if (screen.cur.col < ncol)	1625	else if (screen.cur.col < ncol)
1591	tabs [screen.cur.col] = !!mode;	1626	tabs [screen.cur.col] = !!mode;
…		…
1596	* Set reverse/normal video	1631	* Set reverse/normal video
1597	* XTERM_SEQ: Reverse video: ESC [ ? 5 h	1632	* XTERM_SEQ: Reverse video: ESC [ ? 5 h
1598	* XTERM_SEQ: Normal video : ESC [ ? 5 l	1633	* XTERM_SEQ: Normal video : ESC [ ? 5 l
1599	*/	1634	*/
1600	void	1635	void
1601	rxvt_term::scr_rvideo_mode (int mode)	1636	rxvt_term::scr_rvideo_mode (bool on) NOTHROW
1602	{	1637	{
1603	XGCValues gcvalue;	1638	rvideo_mode = on;
1604		1639
		1640	#ifndef NO_BELL
		1641	on ^= rvideo_bell;
		1642	#endif
		1643
1605	if (rvideo != mode)	1644	if (rvideo_state != on)
1606	{	1645	{
1607	rvideo = mode;	1646	rvideo_state = on;
		1647
1608	::swap (pix_colors[Color_fg], pix_colors[Color_bg]);	1648	::swap (pix_colors[Color_fg], pix_colors[Color_bg]);
1609	#if XPM_BACKGROUND	1649	#if XPM_BACKGROUND
1610	if (bgPixmap.pixmap == None)	1650	if (bgPixmap.pixmap == None)
1611	#endif	1651	#endif
1612	#if TRANSPARENT	1652	#if TRANSPARENT
1613	if (! OPTION (Opt_transparent) || am_transparent == 0)	1653	if (!OPTION (Opt_transparent) || am_transparent == 0)
1614	#endif	1654	#endif
1615	XSetWindowBackground (display->display, vt,	1655	XSetWindowBackground (display->display, vt, pix_colors[Color_bg]);
1616	pix_colors[Color_bg]);
1617		1656
		1657	XGCValues gcvalue;
1618	gcvalue.foreground = pix_colors[Color_fg];	1658	gcvalue.foreground = pix_colors[Color_fg];
1619	gcvalue.background = pix_colors[Color_bg];	1659	gcvalue.background = pix_colors[Color_bg];
1620	XChangeGC (display->display, gc, GCBackground | GCForeground,	1660	XChangeGC (display->display, gc, GCBackground | GCForeground, &gcvalue);
1621	&gcvalue);	1661
1622	scr_clear ();	1662	scr_clear ();
1623	scr_touch (true);	1663	scr_touch (true);
1624	}	1664	}
1625	}	1665	}
1626		1666
…		…
1628	/*	1668	/*
1629	* Report current cursor position	1669	* Report current cursor position
1630	* XTERM_SEQ: Report position: ESC [ 6 n	1670	* XTERM_SEQ: Report position: ESC [ 6 n
1631	*/	1671	*/
1632	void	1672	void
1633	rxvt_term::scr_report_position ()	1673	rxvt_term::scr_report_position () NOTHROW
1634	{	1674	{
1635	tt_printf ("\033[%d;%dR", screen.cur.row + 1, screen.cur.col + 1);	1675	tt_printf ("\033[%d;%dR", screen.cur.row + 1, screen.cur.col + 1);
1636	}	1676	}
1637		1677
1638	/* ------------------------------------------------------------------------- *	1678	/* ------------------------------------------------------------------------- *
…		…
1641		1681
1642	/*	1682	/*
1643	* Set font style	1683	* Set font style
1644	*/	1684	*/
1645	void	1685	void
1646	rxvt_term::set_font_style ()	1686	rxvt_term::set_font_style () NOTHROW
1647	{	1687	{
1648	#if 0	1688	#if 0
1649	switch (charsets [screen.charset])	1689	switch (charsets [screen.charset])
1650	{	1690	{
1651	case '0': /* DEC Special Character & Line Drawing Set */	1691	case '0': /* DEC Special Character & Line Drawing Set */
…		…
1673	* XTERM_SEQ: Invoke G1 character set: CTRL-N	1713	* XTERM_SEQ: Invoke G1 character set: CTRL-N
1674	* XTERM_SEQ: Invoke G2 character set: ESC N	1714	* XTERM_SEQ: Invoke G2 character set: ESC N
1675	* XTERM_SEQ: Invoke G3 character set: ESC O	1715	* XTERM_SEQ: Invoke G3 character set: ESC O
1676	*/	1716	*/
1677	void	1717	void
1678	rxvt_term::scr_charset_choose (int set)	1718	rxvt_term::scr_charset_choose (int set) NOTHROW
1679	{	1719	{
1680	screen.charset = set;	1720	screen.charset = set;
1681	set_font_style ();	1721	set_font_style ();
1682	}	1722	}
1683		1723
…		…
1689	* XTERM_SEQ: Set G2 character set: ESC * <C>	1729	* XTERM_SEQ: Set G2 character set: ESC * <C>
1690	* XTERM_SEQ: Set G3 character set: ESC + <C>	1730	* XTERM_SEQ: Set G3 character set: ESC + <C>
1691	* See set_font_style for possible values for <C>	1731	* See set_font_style for possible values for <C>
1692	*/	1732	*/
1693	void	1733	void
1694	rxvt_term::scr_charset_set (int set, unsigned int ch)	1734	rxvt_term::scr_charset_set (int set, unsigned int ch) NOTHROW
1695	{	1735	{
1696	charsets[set] = (unsigned char)ch;	1736	charsets[set] = (unsigned char)ch;
1697	set_font_style ();	1737	set_font_style ();
1698	}	1738	}
1699		1739
…		…
1704		1744
1705	/*	1745	/*
1706	* refresh matching text.	1746	* refresh matching text.
1707	*/	1747	*/
1708	bool	1748	bool
1709	rxvt_term::scr_refresh_rend (rend_t mask, rend_t value)	1749	rxvt_term::scr_refresh_rend (rend_t mask, rend_t value) NOTHROW
1710	{	1750	{
1711	bool found = false;	1751	bool found = false;
1712		1752
1713	for (int i = 0; i < nrow; i++)	1753	for (int i = 0; i < nrow; i++)
1714	{	1754	{
…		…
1734	PART_END,	1774	PART_END,
1735	RC_COUNT	1775	RC_COUNT
1736	};	1776	};
1737		1777
1738	void	1778	void
1739	rxvt_term::scr_expose (int x, int y, int ewidth, int eheight, bool refresh)	1779	rxvt_term::scr_expose (int x, int y, int ewidth, int eheight, bool refresh) NOTHROW
1740	{	1780	{
1741	int i;	1781	int i;
1742	row_col_t rc[RC_COUNT];	1782	row_col_t rc[RC_COUNT];
1743		1783
1744	if (!drawn_buf) /* sanity check */	1784	if (!drawn_buf) /* sanity check */
…		…
1767	}	1807	}
1768		1808
1769	for (i = rc[PART_BEG].row; i <= rc[PART_END].row; i++)	1809	for (i = rc[PART_BEG].row; i <= rc[PART_END].row; i++)
1770	fill_text (&drawn_buf[i].t[rc[PART_BEG].col], 0, rc[PART_END].col - rc[PART_BEG].col + 1);	1810	fill_text (&drawn_buf[i].t[rc[PART_BEG].col], 0, rc[PART_END].col - rc[PART_BEG].col + 1);
1771		1811
		1812	num_scr_allow = 0;
		1813
1772	if (refresh)	1814	if (refresh)
1773	scr_refresh (SLOW_REFRESH);	1815	scr_refresh ();
1774	}	1816	}
1775		1817
1776	/* ------------------------------------------------------------------------- */	1818	/* ------------------------------------------------------------------------- */
1777	/*	1819	/*
1778	* Refresh the entire screen	1820	* Refresh the entire screen
1779	*/	1821	*/
1780	void	1822	void
1781	rxvt_term::scr_touch (bool refresh)	1823	rxvt_term::scr_touch (bool refresh) NOTHROW
1782	{	1824	{
1783	scr_expose (0, 0, width, height, refresh);	1825	scr_expose (0, 0, width, height, refresh);
1784	}	1826	}
1785		1827
1786	/* ------------------------------------------------------------------------- */	1828	/* ------------------------------------------------------------------------- */
1787	/*	1829	/*
1788	* Move the display so that the line represented by scrollbar value Y is at	1830	* Move the display so that the line represented by scrollbar value Y is at
1789	* the top of the screen	1831	* the top of the screen
1790	*/	1832	*/
1791	int	1833	void
1792	rxvt_term::scr_move_to (int y, int len)	1834	rxvt_term::scr_move_to (int y, int len) NOTHROW
1793	{	1835	{
1794	long p = 0;	1836	scr_changeview ((top_row - nrow) * (len - y) / len + (nrow - 1));
1795	unsigned int oldviewstart;
1796
1797	oldviewstart = view_start;
1798
1799	if (y < len)
1800	{
1801	p = (nrow + nsaved) * (len - y) / len;
1802	p -= (long) (nrow - 1);
1803	p = max (p, 0);
1804	}
1805
1806	view_start = (unsigned int)min (p, nsaved);
1807
1808	return scr_changeview (oldviewstart);
1809	}	1837	}
1810		1838
1811	/* ------------------------------------------------------------------------- */	1839	/* ------------------------------------------------------------------------- */
1812	/*	1840	/*
1813	* Page the screen up/down nlines	1841	* Page the screen up/down nlines
1814	* direction should be UP or DN	1842	* direction should be UP or DN
1815	*/	1843	*/
1816	int	1844	bool
1817	rxvt_term::scr_page (enum page_dirn direction, int nlines)	1845	rxvt_term::scr_page (enum page_dirn direction, int nlines) NOTHROW
1818	{	1846	{
1819	int n;	1847	int new_view_start =
1820	unsigned int oldviewstart;
1821
1822	oldviewstart = view_start;
1823
1824	if (direction == UP)
1825	{
1826	n = view_start + nlines;
1827	view_start = min (n, nsaved);
1828	}
1829	else
1830	{
1831	n = view_start - nlines;	1848	direction == UP ? view_start - nlines
1832	view_start = max (n, 0);	1849	: view_start + nlines;
1833	}
1834		1850
1835	return scr_changeview (oldviewstart);	1851	return scr_changeview (new_view_start);
1836	}	1852	}
1837		1853
1838	int	1854	bool
1839	rxvt_term::scr_changeview (unsigned int oldviewstart)	1855	rxvt_term::scr_changeview (int new_view_start) NOTHROW
1840	{	1856	{
		1857	clamp_it (new_view_start, top_row, 0);
		1858
1841	if (view_start != oldviewstart)	1859	if (new_view_start == view_start)
1842	{	1860	return false;
		1861
		1862	num_scr += new_view_start - view_start;
		1863	view_start = new_view_start;
		1864	want_refresh = 1;
		1865
1843	HOOK_INVOKE ((this, HOOK_VIEW_CHANGE, DT_INT, view_start, DT_END));	1866	HOOK_INVOKE ((this, HOOK_VIEW_CHANGE, DT_INT, view_start, DT_END));
1844		1867
1845	want_refresh = 1;	1868	return true;
1846	num_scr -= (view_start - oldviewstart);
1847	}
1848
1849	return (int)view_start - (int)oldviewstart;
1850	}	1869	}
1851		1870
1852	/* ------------------------------------------------------------------------- */	1871	#ifndef NO_BELL
1853	void	1872	void
		1873	rxvt_term::bell_cb (time_watcher &w)
		1874	{
		1875	rvideo_bell = false;
		1876	scr_rvideo_mode (rvideo_mode);
		1877	}
		1878	#endif
		1879
		1880	/* ------------------------------------------------------------------------- */
		1881	void
1854	rxvt_term::scr_bell ()	1882	rxvt_term::scr_bell () NOTHROW
1855	{	1883	{
1856	#ifndef NO_BELL	1884	#ifndef NO_BELL
1857		1885
1858	# ifndef NO_MAPALERT	1886	# ifndef NO_MAPALERT
1859	# ifdef MAPALERT_OPTION	1887	# ifdef MAPALERT_OPTION
…		…
1862	XMapWindow (display->display, parent[0]);	1890	XMapWindow (display->display, parent[0]);
1863	# endif	1891	# endif
1864		1892
1865	if (OPTION (Opt_visualBell))	1893	if (OPTION (Opt_visualBell))
1866	{	1894	{
1867	scr_rvideo_mode (!rvideo); /* refresh also done */	1895	rvideo_bell = true;
		1896	scr_rvideo_mode (rvideo_mode);
1868	display->flush ();	1897	display->flush ();
1869	rxvt_usleep (VISUAL_BELL_DURATION);	1898
1870	scr_rvideo_mode (!rvideo); /* refresh also done */	1899	bell_ev.start (NOW + VISUAL_BELL_DURATION);
1871	}	1900	}
1872	else	1901	else
1873	XBell (display->display, 0);	1902	XBell (display->display, 0);
1874		1903
1875	#endif	1904	#endif
1876	}	1905	}
1877		1906
1878	/* ------------------------------------------------------------------------- */	1907	/* ------------------------------------------------------------------------- */
1879	/* ARGSUSED */	1908	/* ARGSUSED */
1880	void	1909	void
1881	rxvt_term::scr_printscreen (int fullhist)	1910	rxvt_term::scr_printscreen (int fullhist) NOTHROW
1882	{	1911	{
1883	#ifdef PRINTPIPE	1912	#ifdef PRINTPIPE
1884	int nrows, row_start;	1913	int nrows, row_start;
1885	FILE *fd;	1914	FILE *fd;
1886		1915
1887	if ((fd = popen_printer ()) == NULL)	1916	if ((fd = popen_printer ()) == NULL)
1888	return;	1917	return;
1889		1918
1890	if (fullhist)	1919	if (fullhist)
1891	{	1920	{
1892	nrows = nrow + nsaved;	1921	nrows = nrow - top_row;
1893	row_start = -nsaved;	1922	row_start = top_row;
1894	}	1923	}
1895	else	1924	else
1896	{	1925	{
1897	nrows = nrow;	1926	nrows = nrow;
1898	row_start = -view_start;	1927	row_start = view_start;
1899	}	1928	}
1900		1929
1901	wctomb (0, 0);	1930	wctomb (0, 0);
1902		1931
1903	for (int r1 = 0; r1 < nrows; r1++)	1932	for (int r1 = 0; r1 < nrows; r1++)
…		…
1935	* Refresh the screen	1964	* Refresh the screen
1936	* drawn_text/drawn_rend contain the screen information before the update.	1965	* drawn_text/drawn_rend contain the screen information before the update.
1937	* screen.text/screen.rend contain what the screen will change to.	1966	* screen.text/screen.rend contain what the screen will change to.
1938	*/	1967	*/
1939	void	1968	void
1940	rxvt_term::scr_refresh (unsigned char refresh_type)	1969	rxvt_term::scr_refresh () NOTHROW
1941	{	1970	{
1942	unsigned char must_clear, /* use draw_string not draw_image_string */	1971	unsigned char must_clear, /* use draw_string not draw_image_string */
1943	showcursor; /* show the cursor */	1972	showcursor; /* show the cursor */
1944	int16_t col, row, /* column/row we're processing */	1973	int16_t col, row, /* column/row we're processing */
1945	ocrow; /* old cursor row */	1974	ocrow; /* old cursor row */
…		…
2031		2060
2032	/* make sure no outline cursor is left around */	2061	/* make sure no outline cursor is left around */
2033	setoldcursor = 0;	2062	setoldcursor = 0;
2034	if (ocrow != -1)	2063	if (ocrow != -1)
2035	{	2064	{
2036	if (screen.cur.row + view_start != ocrow	2065	if (screen.cur.row - view_start != ocrow
2037	|| screen.cur.col != oldcursor.col)	2066	|| screen.cur.col != oldcursor.col)
2038	{	2067	{
2039	if (ocrow < nrow	2068	if (ocrow < nrow
2040	&& oldcursor.col < ncol)	2069	&& oldcursor.col < ncol)
2041	drawn_buf[ocrow].r[oldcursor.col] ^= (RS_RVid | RS_Uline);	2070	drawn_buf[ocrow].r[oldcursor.col] ^= (RS_RVid | RS_Uline);
…		…
2049	else if (!focus)	2078	else if (!focus)
2050	setoldcursor = 1;	2079	setoldcursor = 1;
2051		2080
2052	if (setoldcursor)	2081	if (setoldcursor)
2053	{	2082	{
2054	if (screen.cur.row + view_start >= nrow)	2083	if (screen.cur.row - view_start >= nrow)
2055	oldcursor.row = -1;	2084	oldcursor.row = -1;
2056	else	2085	else
2057	{	2086	{
2058	oldcursor.row = screen.cur.row + view_start;	2087	oldcursor.row = screen.cur.row - view_start;
2059	oldcursor.col = screen.cur.col;	2088	oldcursor.col = screen.cur.col;
2060	}	2089	}
2061	}	2090	}
2062	}	2091	}
2063		2092
…		…
2069	#ifndef NO_SLOW_LINK_SUPPORT	2098	#ifndef NO_SLOW_LINK_SUPPORT
2070	/*	2099	/*
2071	* D: CopyArea pass - very useful for slower links	2100	* D: CopyArea pass - very useful for slower links
2072	* This has been deliberately kept simple.	2101	* This has been deliberately kept simple.
2073	*/	2102	*/
2074	i = num_scr;
2075	if (!display->is_local	2103	if (!display->is_local
2076	&& refresh_type == FAST_REFRESH && num_scr_allow && num_scr	2104	&& refresh_type == FAST_REFRESH && num_scr_allow && num_scr
2077	&& abs (num_scr) < nrow && !must_clear)	2105	&& abs (num_scr) < nrow && !must_clear)
2078	{	2106	{
2079	int16_t nits;	2107	int16_t nits;
2080	int j;	2108	int j;
2081	int len, wlen;	2109	int len, wlen;
		2110	dLocal (int, num_scr);
2082		2111
2083	j = nrow;	2112	j = nrow;
2084	wlen = len = -1;	2113	wlen = len = -1;
2085	row = i > 0 ? 0 : j - 1;	2114	row = i > 0 ? 0 : j - 1;
2086	for (; j-- >= 0; row += (i > 0 ? 1 : -1))	2115	for (; j-- >= 0; row += (i > 0 ? 1 : -1))
2087	{	2116	{
2088	if (row + i >= 0 && row + i < nrow && row + i != ocrow)	2117	if (row + i >= 0 && row + i < nrow && row + i != ocrow)
2089	{	2118	{
2090	line_t s = ROW(row - view_start);	2119	line_t s = ROW(view_start + row);
2091	line_t d = drawn_buf[row];	2120	line_t d = drawn_buf[row];
2092	line_t d2 = drawn_buf[row + i];	2121	line_t d2 = drawn_buf[row + i];
2093		2122
2094	for (nits = 0, col = ncol; col--; )	2123	for (nits = 0, col = ncol; col--; )
2095	if (s.t[col] != d2.t[col] || s.r[col] != d2.r[col])	2124	if (s.t[col] != d2.t[col] || s.r[col] != d2.r[col])
…		…
2133	/*	2162	/*
2134	* E: main pass across every character	2163	* E: main pass across every character
2135	*/	2164	*/
2136	for (row = 0; row < nrow; row++)	2165	for (row = 0; row < nrow; row++)
2137	{	2166	{
2138	text_t *stp = ROW(row - view_start).t;	2167	text_t *stp = ROW(view_start + row).t;
2139	rend_t *srp = ROW(row - view_start).r;	2168	rend_t *srp = ROW(view_start + row).r;
2140	text_t *dtp = drawn_buf[row].t;	2169	text_t *dtp = drawn_buf[row].t;
2141	rend_t *drp = drawn_buf[row].r;	2170	rend_t *drp = drawn_buf[row].r;
2142		2171
2143	/*	2172	/*
2144	* E2: OK, now the real pass	2173	* E2: OK, now the real pass
…		…
2215		2244
2216	// only do special processing if any attributes are set, which is unlikely	2245	// only do special processing if any attributes are set, which is unlikely
2217	if (rend & (RS_Bold | RS_Italic | RS_Uline | RS_RVid | RS_Blink | RS_Careful))	2246	if (rend & (RS_Bold | RS_Italic | RS_Uline | RS_RVid | RS_Blink | RS_Careful))
2218	{	2247	{
2219	#if ENABLE_STYLES	2248	#if ENABLE_STYLES
2220	// force redraw after "careful" characters to avoid pixel droppings	2249	// "careful" (too wide) character handling
2221	if (srp[col] & RS_Careful && col < ncol - 1 && 0)
2222	drp[col + 1] = ~srp[col + 1];
2223		2250
2224	// include previous careful character(s) if possible, looks nicer (best effort...)	2251	// include previous careful character(s) if possible, looks nicer (best effort...)
2225	while (text > stp	2252	while (text > stp
2226	&& srp[text - stp - 1] & RS_Careful	2253	&& srp[text - stp - 1] & RS_Careful
2227	&& RS_SAME (rend, srp[text - stp - 1]))	2254	&& RS_SAME (rend, srp[text - stp - 1]))
2228	text--, count++, xpixel -= fwidth;	2255	text--, count++, xpixel -= fwidth;
		2256
		2257	// force redraw after "careful" characters to avoid pixel droppings
		2258	for (int i = 0; srp[col + i] & RS_Careful && col + i < ncol - 1; i++)
		2259	drp[col + i + 1] = ~srp[col + i + 1];
		2260
		2261	// force redraw before "careful" characters to avoid pixel droppings
		2262	for (int i = 0; srp[text - stp - i] & RS_Careful && text - i > stp; i++)
		2263	drp[text - stp - i - 1] = ~srp[text - stp - i - 1];
2229	#endif	2264	#endif
2230		2265
2231	bool invert = rend & RS_RVid;	2266	bool invert = rend & RS_RVid;
2232		2267
2233	#ifndef NO_BOLD_UNDERLINE_REVERSE	2268	#ifndef NO_BOLD_UNDERLINE_REVERSE
…		…
2386	num_scr = 0;	2421	num_scr = 0;
2387	num_scr_allow = 1;	2422	num_scr_allow = 1;
2388	}	2423	}
2389		2424
2390	void	2425	void
2391	rxvt_term::scr_remap_chars (line_t &l)	2426	rxvt_term::scr_remap_chars (line_t &l) NOTHROW
2392	{	2427	{
2393	if (!l.t)	2428	if (!l.t)
2394	return;	2429	return;
2395		2430
2396	l.touch (); // maybe a bit of an overkill, but it's not performance-relevant	2431	l.touch (); // maybe a bit of an overkill, but it's not performance-relevant
…		…
2398	for (int i = ncol; i--; )	2433	for (int i = ncol; i--; )
2399	l.r[i] = SET_FONT (l.r[i], FONTSET (l.r[i])->find_font (l.t[i]));	2434	l.r[i] = SET_FONT (l.r[i], FONTSET (l.r[i])->find_font (l.t[i]));
2400	}	2435	}
2401		2436
2402	void	2437	void
2403	rxvt_term::scr_remap_chars ()	2438	rxvt_term::scr_remap_chars () NOTHROW
2404	{	2439	{
2405	for (int i = total_rows; i--; )	2440	for (int i = total_rows; i--; )
2406	scr_remap_chars (row_buf [i]);	2441	scr_remap_chars (row_buf [i]);
2407		2442
2408	for (int i = nrow; i--; )	2443	for (int i = nrow; i--; )
…		…
2411	scr_remap_chars (swap_buf [i]);	2446	scr_remap_chars (swap_buf [i]);
2412	}	2447	}
2413	}	2448	}
2414		2449
2415	void	2450	void
2416	rxvt_term::scr_recolour ()	2451	rxvt_term::scr_recolour () NOTHROW
2417	{	2452	{
2418	if (1	2453	if (1
2419	#if TRANSPARENT	2454	#if TRANSPARENT
2420	&& !am_transparent	2455	&& !am_transparent
2421	#endif	2456	#endif
…		…
2442	want_refresh = 1;	2477	want_refresh = 1;
2443	}	2478	}
2444		2479
2445	/* ------------------------------------------------------------------------- */	2480	/* ------------------------------------------------------------------------- */
2446	void	2481	void
2447	rxvt_term::scr_clear (bool really)	2482	rxvt_term::scr_clear (bool really) NOTHROW
2448	{	2483	{
2449	if (!mapped)	2484	if (!mapped)
2450	return;	2485	return;
2451		2486
2452	num_scr_allow = 0;	2487	num_scr_allow = 0;
…		…
2455	if (really)	2490	if (really)
2456	XClearWindow (display->display, vt);	2491	XClearWindow (display->display, vt);
2457	}	2492	}
2458		2493
2459	void	2494	void
2460	rxvt_term::scr_xor_rect (int beg_row, int beg_col, int end_row, int end_col, rend_t rstyle1, rend_t rstyle2)	2495	rxvt_term::scr_xor_rect (int beg_row, int beg_col, int end_row, int end_col, rend_t rstyle1, rend_t rstyle2) NOTHROW
2461	{	2496	{
2462	int view_end = -view_start + nrow;	2497	int view_end = view_start + nrow;
2463	int row, col;	2498	int row, col;
2464		2499
2465	for (row = max (beg_row, -view_start); row <= min (end_row, view_end); row++)	2500	for (row = max (beg_row, view_start); row <= min (end_row, view_end); row++)
2466	{	2501	{
2467	text_t *stp = ROW(row).t;	2502	text_t *stp = ROW(row).t;
2468	rend_t *srp = ROW(row).r;	2503	rend_t *srp = ROW(row).r;
2469		2504
2470	for (col = beg_col; col < end_col; col++)	2505	for (col = beg_col; col < end_col; col++)
…		…
2477	srp[col] ^= rstyle2;	2512	srp[col] ^= rstyle2;
2478	}	2513	}
2479	}	2514	}
2480		2515
2481	void	2516	void
2482	rxvt_term::scr_xor_span (int beg_row, int beg_col, int end_row, int end_col, rend_t rstyle)	2517	rxvt_term::scr_xor_span (int beg_row, int beg_col, int end_row, int end_col, rend_t rstyle) NOTHROW
2483	{	2518	{
2484	int view_end = -view_start + nrow;	2519	int view_end = view_start + nrow;
2485	int row, col;	2520	int row, col;
2486		2521
2487	if (beg_row >= -view_start)	2522	if (beg_row >= view_start)
2488	{	2523	{
2489	col = beg_col;	2524	col = beg_col;
2490	row = beg_row;	2525	row = beg_row;
2491	}	2526	}
2492	else	2527	else
2493	{	2528	{
2494	col = 0;	2529	col = 0;
2495	row = -view_start;	2530	row = view_start;
2496	}	2531	}
2497		2532
2498	for (; row < min (end_row, view_end); row++, col = 0)	2533	for (; row < min (end_row, view_end); row++, col = 0)
2499	for (rend_t *srp = ROW(row).r; col < ncol; col++)	2534	for (rend_t *srp = ROW(row).r; col < ncol; col++)
2500	srp[col] ^= rstyle;	2535	srp[col] ^= rstyle;
…		…
2504	srp[col] ^= rstyle;	2539	srp[col] ^= rstyle;
2505	}	2540	}
2506		2541
2507	/* ------------------------------------------------------------------------- */	2542	/* ------------------------------------------------------------------------- */
2508	void	2543	void
2509	rxvt_term::scr_reverse_selection ()	2544	rxvt_term::scr_reverse_selection () NOTHROW
2510	{	2545	{
2511	if (selection.op	2546	if (selection.op
2512	&& current_screen == selection.screen	2547	&& current_screen == selection.screen
2513	&& selection.end.row >= -view_start)	2548	&& selection.end.row >= view_start)
2514	{	2549	{
2515	#if ENABLE_FRILLS	2550	#if ENABLE_FRILLS
2516	if (selection.rect)	2551	if (selection.rect)
2517	scr_xor_rect (selection.beg.row, selection.beg.col,	2552	scr_xor_rect (selection.beg.row, selection.beg.col,
2518	selection.end.row, selection.end.col,	2553	selection.end.row, selection.end.col,
…		…
2530	* Dump the whole scrollback and screen to the passed filedescriptor. The	2565	* Dump the whole scrollback and screen to the passed filedescriptor. The
2531	* invoking routine must close the fd.	2566	* invoking routine must close the fd.
2532	*/	2567	*/
2533	#if 0	2568	#if 0
2534	void	2569	void
2535	rxvt_term::scr_dump (int fd)	2570	rxvt_term::scr_dump (int fd) NOTHROW
2536	{	2571	{
2537	int row, wrote;	2572	int row, wrote;
2538	unsigned int width, towrite;	2573	unsigned int width, towrite;
2539	char r1[] = "\n";	2574	char r1[] = "\n";
2540		2575
…		…
2559		2594
2560	/* ------------------------------------------------------------------------- *	2595	/* ------------------------------------------------------------------------- *
2561	* CHARACTER SELECTION *	2596	* CHARACTER SELECTION *
2562	* ------------------------------------------------------------------------- */	2597	* ------------------------------------------------------------------------- */
2563	void	2598	void
2564	rxvt_term::selection_check (int check_more)	2599	rxvt_term::selection_check (int check_more) NOTHROW
2565	{	2600	{
2566	row_col_t pos;	2601	row_col_t pos;
2567		2602
2568	if (!selection.op)	2603	if (!selection.op)
2569	return;	2604	return;
2570		2605
2571	pos.row = pos.col = 0;	2606	pos.row = pos.col = 0;
2572	if (!IN_RANGE_EXC (selection.beg.row, -nsaved, nrow)	2607	if (!IN_RANGE_EXC (selection.beg.row, top_row, nrow)
2573	|| !IN_RANGE_EXC (selection.mark.row, -nsaved, nrow)	2608	|| !IN_RANGE_EXC (selection.mark.row, top_row, nrow)
2574	|| !IN_RANGE_EXC (selection.end.row, -nsaved, nrow)	2609	|| !IN_RANGE_EXC (selection.end.row, top_row, nrow)
2575	|| (check_more == 1	2610	|| (check_more == 1
2576	&& current_screen == selection.screen	2611	&& current_screen == selection.screen
2577	&& !ROWCOL_IS_BEFORE (screen.cur, selection.beg)	2612	&& !ROWCOL_IS_BEFORE (screen.cur, selection.beg)
2578	&& ROWCOL_IS_BEFORE (screen.cur, selection.end))	2613	&& ROWCOL_IS_BEFORE (screen.cur, selection.end))
2579	|| (check_more == 2	2614	|| (check_more == 2
…		…
2590	/* ------------------------------------------------------------------------- */	2625	/* ------------------------------------------------------------------------- */
2591	/*	2626	/*
2592	* Paste a selection direct to the command fd	2627	* Paste a selection direct to the command fd
2593	*/	2628	*/
2594	void	2629	void
2595	rxvt_term::paste (char *data, unsigned int len)	2630	rxvt_term::paste (char *data, unsigned int len) NOTHROW
2596	{	2631	{
2597	/* convert normal newline chars into common keyboard Return key sequence */	2632	/* convert normal newline chars into common keyboard Return key sequence */
2598	for (unsigned int i = 0; i < len; i++)	2633	for (unsigned int i = 0; i < len; i++)
2599	if (data[i] == C0_LF)	2634	if (data[i] == C0_LF)
2600	data[i] = C0_CR;	2635	data[i] = C0_CR;
…		…
2606	/*	2641	/*
2607	* Respond to a notification that a primary selection has been sent	2642	* Respond to a notification that a primary selection has been sent
2608	* EXT: SelectionNotify	2643	* EXT: SelectionNotify
2609	*/	2644	*/
2610	void	2645	void
2611	rxvt_term::selection_paste (Window win, Atom prop, bool delete_prop)	2646	rxvt_term::selection_paste (Window win, Atom prop, bool delete_prop) NOTHROW
2612	{	2647	{
2613	if (prop == None) /* check for failed XConvertSelection */	2648	if (prop == None) /* check for failed XConvertSelection */
2614	{	2649	{
2615	if ((selection_type & Sel_CompoundText))	2650	if ((selection_type & Sel_CompoundText))
2616	{	2651	{
…		…
2768	if (selection_wait == Sel_normal)	2803	if (selection_wait == Sel_normal)
2769	selection_wait = Sel_none;	2804	selection_wait = Sel_none;
2770	}	2805	}
2771		2806
2772	void	2807	void
2773	rxvt_term::incr_cb (time_watcher &w)	2808	rxvt_term::incr_cb (time_watcher &w) NOTHROW
2774	{	2809	{
2775	selection_wait = Sel_none;	2810	selection_wait = Sel_none;
2776		2811
2777	incr_buf_size = 0;	2812	incr_buf_size = 0;
2778	free (incr_buf);	2813	free (incr_buf);
2779		2814
2780	rxvt_warn ("data loss: timeout on INCR selection paste, ignoring.\n");	2815	rxvt_warn ("data loss: timeout on INCR selection paste, ignoring.\n");
2781	}	2816	}
2782		2817
2783	void	2818	void
2784	rxvt_term::selection_property (Window win, Atom prop)	2819	rxvt_term::selection_property (Window win, Atom prop) NOTHROW
2785	{	2820	{
2786	if (prop == None || selection_wait != Sel_incr)	2821	if (prop == None || selection_wait != Sel_incr)
2787	return;	2822	return;
2788		2823
2789	selection_paste (win, prop, true);	2824	selection_paste (win, prop, true);
…		…
2798	* (+) if ownership is claimed but property is empty, rxvt_selection_paste ()	2833	* (+) if ownership is claimed but property is empty, rxvt_selection_paste ()
2799	* will auto fallback to CUT_BUFFER0	2834	* will auto fallback to CUT_BUFFER0
2800	* EXT: button 2 release	2835	* EXT: button 2 release
2801	*/	2836	*/
2802	void	2837	void
2803	rxvt_term::selection_request (Time tm, int x, int y)	2838	rxvt_term::selection_request (Time tm, int selnum) NOTHROW
2804	{	2839	{
2805	if (x < 0 || x >= width || y < 0 || y >= height)	2840	if (selection.text && selnum == Sel_Primary)
2806	return; /* outside window */
2807
2808	if (selection.text)
2809	{ /* internal selection */	2841	{ /* internal selection */
2810	char *str = rxvt_wcstombs (selection.text, selection.len);	2842	char *str = rxvt_wcstombs (selection.text, selection.len);
2811	paste (str, strlen (str));	2843	paste (str, strlen (str));
2812	free (str);	2844	free (str);
2813	return;	2845	return;
2814	}	2846	}
2815	else	2847	else
2816	{	2848	{
2817	int i;
2818
2819	selection_request_time = tm;	2849	selection_request_time = tm;
2820	selection_wait = Sel_normal;	2850	selection_wait = Sel_normal;
2821		2851
2822	for (i = Sel_Primary; i <= Sel_Clipboard; i++)
2823	{
2824	#if X_HAVE_UTF8_STRING	2852	#if X_HAVE_UTF8_STRING
2825	selection_type = Sel_UTF8String;	2853	selection_type = Sel_UTF8String;
2826	if (selection_request_other (xa[XA_UTF8_STRING], i))	2854	if (selection_request_other (xa[XA_UTF8_STRING], selnum))
2827	return;	2855	return;
2828	#else	2856	#else
2829	selection_type = Sel_CompoundText;	2857	selection_type = Sel_CompoundText;
2830	if (selection_request_other (xa[XA_COMPOUND_TEXT], i))	2858	if (selection_request_other (xa[XA_COMPOUND_TEXT], selnum))
2831	return;	2859	return;
2832	#endif	2860	#endif
2833	}
2834	}	2861	}
2835		2862
2836	selection_wait = Sel_none; /* don't loop in selection_paste () */	2863	selection_wait = Sel_none; /* don't loop in selection_paste () */
2837	selection_paste (display->root, XA_CUT_BUFFER0, false);	2864	selection_paste (display->root, XA_CUT_BUFFER0, false);
2838	}	2865	}
2839		2866
2840	int	2867	int
2841	rxvt_term::selection_request_other (Atom target, int selnum)	2868	rxvt_term::selection_request_other (Atom target, int selnum) NOTHROW
2842	{	2869	{
2843	Atom sel;	2870	Atom sel;
2844		2871
2845	selection_type |= selnum;	2872	selection_type |= selnum;
2846		2873
…		…
2865	/*	2892	/*
2866	* Clear all selected text	2893	* Clear all selected text
2867	* EXT: SelectionClear	2894	* EXT: SelectionClear
2868	*/	2895	*/
2869	void	2896	void
2870	rxvt_term::selection_clear ()	2897	rxvt_term::selection_clear () NOTHROW
2871	{	2898	{
2872	want_refresh = 1;	2899	want_refresh = 1;
2873	free (selection.text);	2900	free (selection.text);
2874	selection.text = NULL;	2901	selection.text = NULL;
2875	selection.len = 0;	2902	selection.len = 0;
…		…
3010		3037
3011	selection_grab (tm);	3038	selection_grab (tm);
3012	}	3039	}
3013		3040
3014	bool	3041	bool
3015	rxvt_term::selection_grab (Time tm)	3042	rxvt_term::selection_grab (Time tm) NOTHROW
3016	{	3043	{
3017	selection_time = tm;	3044	selection_time = tm;
3018		3045
3019	XSetSelectionOwner (display->display, XA_PRIMARY, vt, tm);	3046	XSetSelectionOwner (display->display, XA_PRIMARY, vt, tm);
3020	if (XGetSelectionOwner (display->display, XA_PRIMARY) == vt)	3047	if (XGetSelectionOwner (display->display, XA_PRIMARY) == vt)
3021	{	3048	{
3022	display->set_selection_owner (this);	3049	display->set_selection_owner (this);
3023	return true;	3050	return true;
3024	}	3051	}
3025	else	3052	else
		3053	{
		3054	selection_clear ();
3026	return false;	3055	return false;
		3056	}
3027		3057
3028	#if 0	3058	#if 0
3029	XTextProperty ct;	3059	XTextProperty ct;
3030		3060
3031	if (XwcTextListToTextProperty (display->display, &selection.text, 1, XStringStyle, &ct) >= 0)	3061	if (XwcTextListToTextProperty (display->display, &selection.text, 1, XStringStyle, &ct) >= 0)
…		…
3040	/*	3070	/*
3041	* Mark or select text based upon number of clicks: 1, 2, or 3	3071	* Mark or select text based upon number of clicks: 1, 2, or 3
3042	* EXT: button 1 press	3072	* EXT: button 1 press
3043	*/	3073	*/
3044	void	3074	void
3045	rxvt_term::selection_click (int clicks, int x, int y)	3075	rxvt_term::selection_click (int clicks, int x, int y) NOTHROW
3046	{	3076	{
3047	clicks = ((clicks - 1) % 3) + 1;	3077	clicks = ((clicks - 1) % 3) + 1;
3048	selection.clicks = clicks; /* save clicks so extend will work */	3078	selection.clicks = clicks; /* save clicks so extend will work */
3049		3079
		3080	if (clicks == 2 && !selection.rect
		3081	&& HOOK_INVOKE ((this, HOOK_SEL_EXTEND, DT_END)))
		3082	{
		3083	MEvent.clicks = 1; // what a mess
		3084	selection.screen = current_screen;
		3085	selection.op = SELECTION_CONT;
		3086	return;
		3087	}
		3088
3050	selection_start_colrow (Pixel2Col (x), Pixel2Row (y));	3089	selection_start_colrow (Pixel2Col (x), Pixel2Row (y));
3051		3090
3052	if (clicks == 2 || clicks == 3)	3091	if (clicks == 2 || clicks == 3)
3053	selection_extend_colrow (selection.mark.col,	3092	selection_extend_colrow (selection.mark.col,
3054	selection.mark.row + view_start,	3093	selection.mark.row - view_start,
3055	0, /* button 3 */	3094	0, /* button 3 */
3056	1, /* button press */	3095	1, /* button press */
3057	0); /* click change */	3096	0); /* click change */
3058	}	3097	}
3059		3098
3060	/* ------------------------------------------------------------------------- */	3099	/* ------------------------------------------------------------------------- */
3061	/*	3100	/*
3062	* Mark a selection at the specified col/row	3101	* Mark a selection at the specified col/row
3063	*/	3102	*/
3064	void	3103	void
3065	rxvt_term::selection_start_colrow (int col, int row)	3104	rxvt_term::selection_start_colrow (int col, int row) NOTHROW
3066	{	3105	{
3067	want_refresh = 1;	3106	want_refresh = 1;
3068		3107
3069	selection.mark.row = row - view_start;	3108	selection.mark.row = row + view_start;
3070	selection.mark.col = col;	3109	selection.mark.col = col;
3071		3110
3072	selection.mark.row = clamp (selection.mark.row, -nsaved, nrow - 1);	3111	selection.mark.row = clamp (selection.mark.row, top_row, nrow - 1);
3073	selection.mark.col = clamp (selection.mark.col, 0, ncol - 1);	3112	selection.mark.col = clamp (selection.mark.col, 0, ncol - 1);
3074		3113
3075	while (selection.mark.col > 0	3114	while (selection.mark.col > 0
3076	&& ROW(selection.mark.row).t[selection.mark.col] == NOCHAR)	3115	&& ROW(selection.mark.row).t[selection.mark.col] == NOCHAR)
3077	--selection.mark.col;	3116	--selection.mark.col;
…		…
3096	#define DELIMIT_TEXT(x) \	3135	#define DELIMIT_TEXT(x) \
3097	(unicode::is_space (x) ? 2 : (x) <= 0xff && !!strchr (rs[Rs_cutchars], (x)))	3136	(unicode::is_space (x) ? 2 : (x) <= 0xff && !!strchr (rs[Rs_cutchars], (x)))
3098	#define DELIMIT_REND(x) 1	3137	#define DELIMIT_REND(x) 1
3099		3138
3100	void	3139	void
3101	rxvt_term::selection_delimit_word (enum page_dirn dirn, const row_col_t *mark, row_col_t *ret)	3140	rxvt_term::selection_delimit_word (enum page_dirn dirn, const row_col_t *mark, row_col_t *ret) NOTHROW
3102	{	3141	{
3103	int col, row, dirnadd, tcol, trow, w1, w2;	3142	int col, row, dirnadd, tcol, trow, w1, w2;
3104	row_col_t bound;	3143	row_col_t bound;
3105	text_t *stp;	3144	text_t *stp;
3106	rend_t *srp;	3145	rend_t *srp;
3107		3146
3108	if (dirn == UP)	3147	if (dirn == UP)
3109	{	3148	{
3110	bound.row = - nsaved - 1;	3149	bound.row = top_row - 1;
3111	bound.col = 0;	3150	bound.col = 0;
3112	dirnadd = -1;	3151	dirnadd = -1;
3113	}	3152	}
3114	else	3153	else
3115	{	3154	{
…		…
3180	* flag == 0 ==> button 1	3219	* flag == 0 ==> button 1
3181	* flag == 1 ==> button 3 press	3220	* flag == 1 ==> button 3 press
3182	* flag == 2 ==> button 3 motion	3221	* flag == 2 ==> button 3 motion
3183	*/	3222	*/
3184	void	3223	void
3185	rxvt_term::selection_extend (int x, int y, int flag)	3224	rxvt_term::selection_extend (int x, int y, int flag) NOTHROW
3186	{	3225	{
3187	int col = clamp (Pixel2Col (x), 0, ncol);	3226	int col = clamp (Pixel2Col (x), 0, ncol);
3188	int row = clamp (Pixel2Row (y), 0, nrow - 1);	3227	int row = clamp (Pixel2Row (y), 0, nrow - 1);
3189		3228
3190	/*	3229	/*
…		…
3193	* select nothing. Otherwise, if we're to the right of the mark, you have to	3232	* select nothing. Otherwise, if we're to the right of the mark, you have to
3194	* be _past_ a character for it to be selected.	3233	* be _past_ a character for it to be selected.
3195	*/	3234	*/
3196	if (((selection.clicks % 3) == 1) && !flag	3235	if (((selection.clicks % 3) == 1) && !flag
3197	&& (col == selection.mark.col	3236	&& (col == selection.mark.col
3198	&& (row == selection.mark.row + view_start)))	3237	&& (row == selection.mark.row - view_start)))
3199	{	3238	{
3200	/* select nothing */	3239	/* select nothing */
3201	selection.beg.row = selection.end.row = 0;	3240	selection.beg.row = selection.end.row = 0;
3202	selection.beg.col = selection.end.col = 0;	3241	selection.beg.col = selection.end.col = 0;
3203	selection.clicks = 4;	3242	selection.clicks = 4;
…		…
3216	/* ------------------------------------------------------------------------- */	3255	/* ------------------------------------------------------------------------- */
3217	/*	3256	/*
3218	* Extend the selection to the specified col/row	3257	* Extend the selection to the specified col/row
3219	*/	3258	*/
3220	void	3259	void
3221	rxvt_term::selection_extend_colrow (int32_t col, int32_t row, int button3, int buttonpress, int clickchange)	3260	rxvt_term::selection_extend_colrow (int32_t col, int32_t row, int button3, int buttonpress, int clickchange) NOTHROW
3222	{	3261	{
3223	row_col_t pos;	3262	row_col_t pos;
3224	enum {	3263	enum {
3225	LEFT, RIGHT	3264	LEFT, RIGHT
3226	} closeto = RIGHT;	3265	} closeto = RIGHT;
…		…
3258	selection.beg.col = selection.end.col = selection.mark.col;	3297	selection.beg.col = selection.end.col = selection.mark.col;
3259	selection.beg.row = selection.end.row = selection.mark.row;	3298	selection.beg.row = selection.end.row = selection.mark.row;
3260	}	3299	}
3261		3300
3262	pos.col = col;	3301	pos.col = col;
3263	pos.row = row - view_start;	3302	pos.row = view_start + row;
3264		3303
3265	/*	3304	/*
3266	* This is mainly xterm style selection with a couple of differences, mainly	3305	* This is mainly xterm style selection with a couple of differences, mainly
3267	* in the way button3 drag extension works.	3306	* in the way button3 drag extension works.
3268	* We're either doing: button1 drag; button3 press; or button3 drag	3307	* We're either doing: button1 drag; button3 press; or button3 drag
…		…
3349	else if (selection.clicks == 2)	3388	else if (selection.clicks == 2)
3350	{	3389	{
3351	if (ROWCOL_IS_AFTER (selection.end, selection.beg))	3390	if (ROWCOL_IS_AFTER (selection.end, selection.beg))
3352	selection.end.col--;	3391	selection.end.col--;
3353		3392
3354	if (!HOOK_INVOKE ((this, HOOK_SEL_EXTEND, DT_END)))
3355	{
3356	selection_delimit_word (UP, &selection.beg, &selection.beg);	3393	selection_delimit_word (UP, &selection.beg, &selection.beg);
3357	selection_delimit_word (DN, &selection.end, &selection.end);	3394	selection_delimit_word (DN, &selection.end, &selection.end);
3358	}
3359	}	3395	}
3360	else if (selection.clicks == 3)	3396	else if (selection.clicks == 3)
3361	{	3397	{
3362	#if ENABLE_FRILLS	3398	#if ENABLE_FRILLS
3363	if (OPTION (Opt_tripleclickwords))	3399	if (OPTION (Opt_tripleclickwords))
…		…
3415	#endif	3451	#endif
3416	}	3452	}
3417		3453
3418	#if ENABLE_FRILLS	3454	#if ENABLE_FRILLS
3419	void	3455	void
3420	rxvt_term::selection_remove_trailing_spaces ()	3456	rxvt_term::selection_remove_trailing_spaces () NOTHROW
3421	{	3457	{
3422	int32_t end_col, end_row;	3458	int32_t end_col, end_row;
3423	text_t *stp;	3459	text_t *stp;
3424		3460
3425	end_col = selection.end.col;	3461	end_col = selection.end.col;
…		…
3463	/*	3499	/*
3464	* Double click on button 3 when already selected	3500	* Double click on button 3 when already selected
3465	* EXT: button 3 double click	3501	* EXT: button 3 double click
3466	*/	3502	*/
3467	void	3503	void
3468	rxvt_term::selection_rotate (int x, int y)	3504	rxvt_term::selection_rotate (int x, int y) NOTHROW
3469	{	3505	{
3470	selection.clicks = selection.clicks % 3 + 1;	3506	selection.clicks = selection.clicks % 3 + 1;
3471	selection_extend_colrow (Pixel2Col (x), Pixel2Row (y), 1, 0, 1);	3507	selection_extend_colrow (Pixel2Col (x), Pixel2Row (y), 1, 0, 1);
3472	}	3508	}
3473		3509
…		…
3475	/*	3511	/*
3476	* Respond to a request for our current selection	3512	* Respond to a request for our current selection
3477	* EXT: SelectionRequest	3513	* EXT: SelectionRequest
3478	*/	3514	*/
3479	void	3515	void
3480	rxvt_term::selection_send (const XSelectionRequestEvent &rq)	3516	rxvt_term::selection_send (const XSelectionRequestEvent &rq) NOTHROW
3481	{	3517	{
3482	XSelectionEvent ev;	3518	XSelectionEvent ev;
3483	dDisp;	3519	dDisp;
3484		3520
3485	ev.type = SelectionNotify;	3521	ev.type = SelectionNotify;
…		…
3613		3649
3614	/*	3650	/*
3615	* return col/row values corresponding to x/y pixel values	3651	* return col/row values corresponding to x/y pixel values
3616	*/	3652	*/
3617	void	3653	void
3618	rxvt_term::pixel_position (int *x, int *y)	3654	rxvt_term::pixel_position (int *x, int *y) NOTHROW
3619	{	3655	{
3620	*x = Pixel2Col (*x);	3656	*x = Pixel2Col (*x);
3621	/* max_it (*x, 0); min_it (*x, (int)ncol - 1); */	3657	/* max_it (*x, 0); min_it (*x, (int)ncol - 1); */
3622	*y = Pixel2Row (*y);	3658	*y = Pixel2Row (*y);
3623	/* max_it (*y, 0); min_it (*y, (int)nrow - 1); */	3659	/* max_it (*y, 0); min_it (*y, (int)nrow - 1); */
3624	}	3660	}
3625		3661
3626	/* ------------------------------------------------------------------------- */	3662	/* ------------------------------------------------------------------------- */
3627	#ifdef USE_XIM	3663	#ifdef USE_XIM
3628	void	3664	void
3629	rxvt_term::im_set_position (XPoint &pos)	3665	rxvt_term::im_set_position (XPoint &pos) NOTHROW
3630	{	3666	{
3631	XWindowAttributes xwa;	3667	XWindowAttributes xwa;
3632		3668
3633	XGetWindowAttributes (display->display, vt, &xwa);	3669	XGetWindowAttributes (display->display, vt, &xwa);
3634		3670
…		…
3637	}	3673	}
3638	#endif	3674	#endif
3639		3675
3640	#if ENABLE_OVERLAY	3676	#if ENABLE_OVERLAY
3641	void	3677	void
3642	rxvt_term::scr_overlay_new (int x, int y, int w, int h)	3678	rxvt_term::scr_overlay_new (int x, int y, int w, int h) NOTHROW
3643	{	3679	{
3644	if (nrow < 1 || ncol < 1)	3680	if (nrow < 1 || ncol < 1)
3645	return;	3681	return;
3646		3682
3647	want_refresh = 1;	3683	want_refresh = 1;
…		…
3692	*rp = r;	3728	*rp = r;
3693	}	3729	}
3694	}	3730	}
3695		3731
3696	void	3732	void
3697	rxvt_term::scr_overlay_off ()	3733	rxvt_term::scr_overlay_off () NOTHROW
3698	{	3734	{
3699	if (!ov_text)	3735	if (!ov_text)
3700	return;	3736	return;
3701		3737
3702	want_refresh = 1;	3738	want_refresh = 1;
…		…
3710	delete [] ov_text; ov_text = 0;	3746	delete [] ov_text; ov_text = 0;
3711	delete [] ov_rend; ov_rend = 0;	3747	delete [] ov_rend; ov_rend = 0;
3712	}	3748	}
3713		3749
3714	void	3750	void
3715	rxvt_term::scr_overlay_set (int x, int y, text_t text, rend_t rend)	3751	rxvt_term::scr_overlay_set (int x, int y, text_t text, rend_t rend) NOTHROW
3716	{	3752	{
3717	if (!ov_text || x >= ov_w - 2 || y >= ov_h - 2)	3753	if (!ov_text || x >= ov_w - 2 || y >= ov_h - 2)
3718	return;	3754	return;
3719		3755
3720	x++, y++;	3756	x++, y++;
…		…
3722	ov_text[y][x] = text;	3758	ov_text[y][x] = text;
3723	ov_rend[y][x] = rend;	3759	ov_rend[y][x] = rend;
3724	}	3760	}
3725		3761
3726	void	3762	void
3727	rxvt_term::scr_overlay_set (int x, int y, const char *s)	3763	rxvt_term::scr_overlay_set (int x, int y, const char *s) NOTHROW
3728	{	3764	{
3729	while (*s)	3765	while (*s)
3730	scr_overlay_set (x++, y, *s++);	3766	scr_overlay_set (x++, y, *s++);
3731	}	3767	}
3732		3768
3733	void	3769	void
3734	rxvt_term::scr_overlay_set (int x, int y, const wchar_t *s)	3770	rxvt_term::scr_overlay_set (int x, int y, const wchar_t *s) NOTHROW
3735	{	3771	{
3736	while (*s)	3772	while (*s)
3737	{	3773	{
3738	text_t t = *s++;	3774	text_t t = *s++;
3739	int width = wcwidth (t);	3775	int width = WCWIDTH (t);
3740		3776
3741	while (width--)	3777	while (width--)
3742	{	3778	{
3743	scr_overlay_set (x++, y, t);	3779	scr_overlay_set (x++, y, t);
3744	t = NOCHAR;	3780	t = NOCHAR;
3745	}	3781	}
3746	}	3782	}
3747	}	3783	}
3748		3784
3749	void	3785	void
3750	rxvt_term::scr_swap_overlay ()	3786	rxvt_term::scr_swap_overlay () NOTHROW
3751	{	3787	{
3752	if (!ov_text)	3788	if (!ov_text)
3753	return;	3789	return;
3754		3790
3755	// swap screen mem with overlay	3791	// swap screen mem with overlay
3756	for (int y = ov_h; y--; )	3792	for (int y = ov_h; y--; )
3757	{	3793	{
3758	text_t *t1 = ov_text[y];	3794	text_t *t1 = ov_text[y];
3759	rend_t *r1 = ov_rend[y];	3795	rend_t *r1 = ov_rend[y];
3760		3796
3761	text_t *t2 = ROW(y + ov_y - view_start).t + ov_x;	3797	text_t *t2 = ROW(y + ov_y + view_start).t + ov_x;
3762	rend_t *r2 = ROW(y + ov_y - view_start).r + ov_x;	3798	rend_t *r2 = ROW(y + ov_y + view_start).r + ov_x;
3763		3799
3764	for (int x = ov_w; x--; )	3800	for (int x = ov_w; x--; )
3765	{	3801	{
3766	text_t t = *t1; *t1++ = *t2; *t2++ = t;	3802	text_t t = *t1; *t1++ = *t2; *t2++ = t;
3767	rend_t r = *r1; *r1++ = *r2; *r2++ = SET_FONT (r, FONTSET (r)->find_font (t));	3803	rend_t r = *r1; *r1++ = *r2; *r2++ = SET_FONT (r, FONTSET (r)->find_font (t));

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