1 /*---------------------------------------------------------------------------*
3 *---------------------------------------------------------------------------*
5 * Copyright (c) 1997-2001 Geoff Wing <gcw@pobox.com>
6 * Copyright (c) 2003-2006 Marc Lehmann <pcg@goof.com>
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
21 *--------------------------------------------------------------------------*/
24 * This file handles _all_ screen updates and selections
27 #include "../config.h" /* NECESSARY */
28 #include "rxvt.h" /* NECESSARY */
29 #include "rxvtperl.h" /* NECESSARY */
33 #include "salloc.C" // HACK, should be a seperate compile!
35 static inline void fill_text (text_t *start, text_t value, int len)
41 /* ------------------------------------------------------------------------- */
42 #define PROP_SIZE 256*1024
43 #define PASTE_SIZE 32768
44 #define TABSIZE 8 /* default tab size */
46 /* ------------------------------------------------------------------------- *
47 * GENERAL SCREEN AND SELECTION UPDATE ROUTINES *
48 * ------------------------------------------------------------------------- */
49 #define ZERO_SCROLLBACK() \
50 if (option (Opt_scrollTtyOutput)) \
52 #define CLEAR_SELECTION() \
53 selection.beg.row = selection.beg.col \
54 = selection.end.row = selection.end.col = 0
55 #define CLEAR_ALL_SELECTION() \
56 selection.beg.row = selection.beg.col \
57 = selection.mark.row = selection.mark.col \
58 = selection.end.row = selection.end.col = 0
60 #define ROW_AND_COL_IS_AFTER(A, B, C, D) \
61 (((A) > (C)) || (((A) == (C)) && ((B) > (D))))
62 #define ROW_AND_COL_IS_BEFORE(A, B, C, D) \
63 (((A) < (C)) || (((A) == (C)) && ((B) < (D))))
64 #define ROW_AND_COL_IN_ROW_AFTER(A, B, C, D) \
65 (((A) == (C)) && ((B) > (D)))
66 #define ROW_AND_COL_IN_ROW_AT_OR_AFTER(A, B, C, D) \
67 (((A) == (C)) && ((B) >= (D)))
68 #define ROW_AND_COL_IN_ROW_BEFORE(A, B, C, D) \
69 (((A) == (C)) && ((B) < (D)))
70 #define ROW_AND_COL_IN_ROW_AT_OR_BEFORE(A, B, C, D) \
71 (((A) == (C)) && ((B) <= (D)))
73 /* these must be row_col_t */
74 #define ROWCOL_IS_AFTER(X, Y) \
75 ROW_AND_COL_IS_AFTER ((X).row, (X).col, (Y).row, (Y).col)
76 #define ROWCOL_IS_BEFORE(X, Y) \
77 ROW_AND_COL_IS_BEFORE ((X).row, (X).col, (Y).row, (Y).col)
78 #define ROWCOL_IN_ROW_AFTER(X, Y) \
79 ROW_AND_COL_IN_ROW_AFTER ((X).row, (X).col, (Y).row, (Y).col)
80 #define ROWCOL_IN_ROW_BEFORE(X, Y) \
81 ROW_AND_COL_IN_ROW_BEFORE ((X).row, (X).col, (Y).row, (Y).col)
82 #define ROWCOL_IN_ROW_AT_OR_AFTER(X, Y) \
83 ROW_AND_COL_IN_ROW_AT_OR_AFTER ((X).row, (X).col, (Y).row, (Y).col)
84 #define ROWCOL_IN_ROW_AT_OR_BEFORE(X, Y) \
85 ROW_AND_COL_IN_ROW_AT_OR_BEFORE ((X).row, (X).col, (Y).row, (Y).col)
88 * CLEAR_ROWS : clear <num> rows starting from row <row>
89 * CLEAR_CHARS: clear <num> chars starting from pixel position <x,y>
90 * ERASE_ROWS : set <num> rows starting from row <row> to the foreground colour
94 #define CLEAR_ROWS(row, num) \
96 XClearArea (dpy, drawBuffer, 0, \
97 Row2Pixel (row), (unsigned int)width, \
98 (unsigned int)Height2Pixel (num), False)
100 #define CLEAR_CHARS(x, y, num) \
102 XClearArea (dpy, drawBuffer, x, y, \
103 (unsigned int)Width2Pixel (num), \
104 (unsigned int)Height2Pixel (1), False)
106 #define ERASE_ROWS(row, num) \
107 XFillRectangle (dpy, drawBuffer, gc, \
108 0, Row2Pixel (row), \
109 (unsigned int)width, \
110 (unsigned int)Height2Pixel (num))
112 /* ------------------------------------------------------------------------- *
113 * SCREEN `COMMON' ROUTINES *
114 * ------------------------------------------------------------------------- */
116 /* Fill part/all of a line with blanks. */
118 rxvt_term::scr_blank_line (line_t &l, unsigned int col, unsigned int width, rend_t efs) const NOTHROW
129 efs &= ~RS_baseattrMask; // remove italic etc. fontstyles
130 efs = SET_FONT (efs, FONTSET (efs)->find_font (' '));
132 text_t *et = l.t + col;
133 rend_t *er = l.r + col;
142 /* ------------------------------------------------------------------------- */
143 /* Fill a full line with blanks - make sure it is allocated first */
145 rxvt_term::scr_blank_screen_mem (line_t &l, rend_t efs) const NOTHROW
147 scr_blank_line (l, 0, ncol, efs);
153 /* ------------------------------------------------------------------------- *
154 * SCREEN INITIALISATION *
155 * ------------------------------------------------------------------------- */
158 rxvt_term::scr_reset ()
174 if (ncol == prev_ncol && nrow == prev_nrow)
177 if (current_screen != PRIMARY)
180 // we need at least two lines for wrapping to work correctly
181 while (nrow + saveLines < 2)
191 int prev_total_rows = prev_nrow + saveLines;
192 total_rows = nrow + saveLines;
195 screen.bscroll = nrow - 1;
200 * first time called so just malloc everything: don't rely on realloc
205 talloc = new rxvt_salloc (ncol * sizeof (text_t));
206 ralloc = new rxvt_salloc (ncol * sizeof (rend_t));
208 row_buf = (line_t *)rxvt_calloc (total_rows + nrow, 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));
212 for (int row = nrow; row--; )
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);
219 memset (charsets, 'B', sizeof (charsets));
220 rstyle = DEFAULT_RSTYLE;
221 screen.flags = Screen_DefaultFlags;
222 screen.cur.row = screen.cur.col = 0;
224 current_screen = PRIMARY;
228 swap.flags = Screen_DefaultFlags;
229 swap.cur.row = swap.cur.col = 0;
231 current_screen = SECONDARY;
233 current_screen = PRIMARY;
236 selection.text = NULL;
238 selection.op = SELECTION_CLEAR;
239 selection.screen = PRIMARY;
240 selection.clicks = 0;
245 * add or delete rows as appropriate
248 rxvt_salloc *old_ta = talloc; talloc = new rxvt_salloc (ncol * sizeof (text_t));
249 rxvt_salloc *old_ra = ralloc; ralloc = new rxvt_salloc (ncol * sizeof (rend_t));
252 if (nrow < prev_nrow)
254 for (int row = nrow; row < prev_nrow; row++)
256 lfree (swap_buf [row]);
257 lfree (drawn_buf[row]);
262 drawn_buf = (line_t *)rxvt_realloc (drawn_buf, nrow * sizeof (line_t));
263 swap_buf = (line_t *)rxvt_realloc (swap_buf , nrow * sizeof (line_t));
265 for (int row = min (nrow, prev_nrow); row--; )
267 lresize (drawn_buf[row]);
268 lresize (swap_buf [row]);
271 for (int row = prev_nrow; row < nrow; row++)
273 swap_buf [row].clear (); scr_blank_screen_mem (swap_buf [row], DEFAULT_RSTYLE);
274 drawn_buf[row].clear (); scr_blank_screen_mem (drawn_buf[row], DEFAULT_RSTYLE);
277 line_t *old_buf = row_buf;
278 row_buf = (line_t *)rxvt_calloc (total_rows + nrow, sizeof (line_t));
280 int p = MOD (term_start + prev_nrow, prev_total_rows); // previous row
281 int pend = MOD (term_start + top_row , prev_total_rows);
282 int q = total_rows; // rewrapped row
286 // Re-wrap lines. This is rather ugly, possibly because I am too dumb
287 // to come up with a lean and mean algorithm.
289 row_col_t ocur = screen.cur;
290 ocur.row = MOD (term_start + ocur.row, prev_total_rows);
294 p = MOD (p - 1, prev_total_rows);
296 assert (old_buf [MOD (p, prev_total_rows)].t);
299 int llen = old_buf [MOD (p, prev_total_rows)].l;
301 while (p != pend && old_buf [MOD (p - 1, prev_total_rows)].is_longer ())
303 p = MOD (p - 1, prev_total_rows);
309 int qlines = max (0, (llen - 1) / ncol) + 1;
311 // drop partial lines completely
320 // re-assemble the full line by destination lines
321 for (int qrow = q; qlines--; qrow++)
323 qline = row_buf + qrow;
326 qline->is_longer (1);
330 // see below for cursor adjustment rationale
332 screen.cur.row = q - (total_rows - nrow);
334 // fill a single destination line
335 while (lofs < llen && qcol < ncol)
337 int prow = lofs / prev_ncol;
338 int pcol = lofs % prev_ncol;
340 prow = MOD (p + prow, prev_total_rows);
342 // we only adjust the cursor _row_ and put it into
343 // the topmost line of "long line" it was in, as
344 // this seems to upset applications/shells/readline
346 if (prow == ocur.row)
347 screen.cur.row = q - (total_rows - nrow);
349 line_t &pline = old_buf [prow];
351 int len = min (min (prev_ncol - pcol, ncol - qcol), llen - lofs);
353 memcpy (qline->t + qcol, pline.t + pcol, len * sizeof (text_t));
354 memcpy (qline->r + qcol, pline.r + pcol, len * sizeof (rend_t));
361 qline->l = llen ? MOD (llen - 1, ncol) + 1 : 0;
362 qline->is_longer (0);
363 scr_blank_line (*qline, qline->l, ncol - qline->l, DEFAULT_RSTYLE);
365 while (p != pend && q > 0);
367 term_start = total_rows - nrow;
368 top_row = q - term_start;
370 // make sure all terminal lines exist
372 scr_blank_screen_mem (ROW (--top_row), DEFAULT_RSTYLE);
376 // if no scrollback exists (yet), wing, instead of wrap
378 for (int row = min (nrow, prev_nrow); row--; )
380 line_t &pline = old_buf [MOD (term_start + row, prev_total_rows)];
381 line_t &qline = row_buf [row];
387 for (int row = prev_nrow; row < nrow; row++)
389 row_buf [row].clear (); scr_blank_screen_mem (row_buf [row], DEFAULT_RSTYLE);
399 clamp_it (screen.cur.row, 0, nrow - 1);
400 clamp_it (screen.cur.col, 0, ncol - 1);
405 CLEAR_ALL_SELECTION ();
410 tabs = (char *)rxvt_malloc (ncol);
412 for (int col = ncol; --col; )
413 tabs [col] = col % TABSIZE == 0;
415 if (current_screen != PRIMARY)
420 HOOK_INVOKE ((this, HOOK_RESET, DT_END));
423 /* ------------------------------------------------------------------------- */
425 * Free everything. That way malloc debugging can find leakage.
428 rxvt_term::scr_release () NOTHROW
432 delete talloc; talloc = 0;
433 delete ralloc; ralloc = 0;
440 row_buf = 0; // signal that we freed all the arrays
444 /* ------------------------------------------------------------------------- */
449 rxvt_term::scr_poweron ()
452 prev_nrow = prev_ncol = 0;
459 /* ------------------------------------------------------------------------- *
460 * PROCESS SCREEN COMMANDS *
461 * ------------------------------------------------------------------------- */
463 * Save and Restore cursor
464 * XTERM_SEQ: Save cursor : ESC 7
465 * XTERM_SEQ: Restore cursor: ESC 8
468 rxvt_term::scr_cursor (cursor_mode mode) NOTHROW
472 #if NSCREENS && !defined(NO_SECONDARY_SCREEN_CURSOR)
473 if (current_screen == SECONDARY)
482 s->s_cur.row = screen.cur.row;
483 s->s_cur.col = screen.cur.col;
484 s->s_rstyle = rstyle;
485 s->s_charset = screen.charset;
486 s->s_charset_char = charsets[screen.charset];
491 screen.cur.row = s->s_cur.row;
492 screen.cur.col = s->s_cur.col;
493 screen.flags &= ~Screen_WrapNext;
494 rstyle = s->s_rstyle;
495 screen.charset = s->s_charset;
496 charsets[screen.charset] = s->s_charset_char;
501 /* boundary check in case screen size changed between SAVE and RESTORE */
502 min_it (s->cur.row, nrow - 1);
503 min_it (s->cur.col, ncol - 1);
505 assert (s->cur.row >= 0);
506 assert (s->cur.col >= 0);
511 rxvt_term::scr_swap_screen ()
513 if (!option (Opt_secondaryScreen))
516 for (int i = prev_nrow; i--; )
517 ::swap (ROW(i), swap_buf [i]);
519 ::swap (screen.cur, swap.cur);
521 screen.cur.row = clamp (screen.cur.row, 0, prev_nrow - 1);
522 screen.cur.col = clamp (screen.cur.col, 0, prev_ncol - 1);
525 /* ------------------------------------------------------------------------- */
527 * Swap between primary and secondary screens
528 * XTERM_SEQ: Primary screen : ESC [ ? 4 7 h
529 * XTERM_SEQ: Secondary screen: ESC [ ? 4 7 l
532 rxvt_term::scr_change_screen (int scrn)
534 if (scrn == current_screen)
540 selection_check (2); /* check for boundary cross */
542 int i = current_screen; current_screen = scrn; scrn = i;
545 if (option (Opt_secondaryScreen))
551 ::swap (screen.charset, swap.charset);
552 ::swap (screen.flags, swap.flags);
553 screen.flags |= Screen_VisibleCursor;
554 swap.flags |= Screen_VisibleCursor;
558 if (option (Opt_secondaryScroll))
559 scr_scroll_text (0, prev_nrow - 1, prev_nrow);
562 // clear WrapNext indicator, solidifying position on next line
564 rxvt_term::scr_do_wrap () NOTHROW
566 if (!(screen.flags & Screen_WrapNext))
569 screen.flags &= ~Screen_WrapNext;
573 if (screen.cur.row == screen.bscroll)
574 scr_scroll_text (screen.tscroll, screen.bscroll, 1);
575 else if (screen.cur.row < nrow - 1)
579 /* ------------------------------------------------------------------------- */
581 * Change the colour for following text
584 rxvt_term::scr_color (unsigned int color, int fgbg) NOTHROW
586 if (!IN_RANGE_INC (color, minCOLOR, maxTermCOLOR))
589 if (fgbg == Color_fg)
590 rstyle = SET_FGCOLOR (rstyle, color);
592 rstyle = SET_BGCOLOR (rstyle, color);
595 /* ------------------------------------------------------------------------- */
597 * Change the rendition style for following text
600 rxvt_term::scr_rendition (int set, int style) NOTHROW
604 else if (style == ~RS_None)
605 rstyle = DEFAULT_RSTYLE;
610 /* ------------------------------------------------------------------------- */
612 * Scroll text between <row1> and <row2> inclusive, by <count> lines
613 * count positive ==> scroll up
614 * count negative ==> scroll down
617 rxvt_term::scr_scroll_text (int row1, int row2, int count) NOTHROW
619 if (count == 0 || (row1 > row2))
627 && (current_screen == PRIMARY || option (Opt_secondaryScroll)))
629 top_row = max (top_row - count, -saveLines);
631 // scroll everything up 'count' lines
632 term_start = (term_start + count) % total_rows;
634 // sever bottommost line
636 line_t &l = ROW(row2 - count);
641 // erase newly scrolled-in lines
642 for (int i = count; i--; )
644 line_t &l = ROW(nrow - 1 - i);
646 // optimize if already cleared, can be significant on slow machines
647 // could be rolled into scr_blank_screen_mem
648 if (l.r && l.l < ncol - 1 && !((l.r[l.l + 1] ^ rstyle) & (RS_fgMask | RS_bgMask)))
650 scr_blank_line (l, 0, l.l, rstyle);
655 scr_blank_screen_mem (l, rstyle);
658 // now copy lines below the scroll region bottom to the
659 // bottom of the screen again, so they look as if they
661 for (int i = nrow; --i > row2; )
663 line_t &l1 = ROW(i - count);
670 // move and/or clear selection, if any
671 if (selection.op && current_screen == selection.screen)
673 selection.beg.row -= count;
674 selection.end.row -= count;
675 selection.mark.row -= count;
677 if (selection.beg.row < top_row
678 || selection.end.row < top_row
679 || selection.mark.row < top_row)
681 CLEAR_ALL_SELECTION ();
682 selection.op = SELECTION_CLEAR;
686 // finally move the view window, if desired
687 if (option (Opt_scrollWithBuffer)
689 && view_start != -saveLines)
690 scr_page (UP, count);
692 if (SHOULD_INVOKE (HOOK_SCROLL_BACK))
693 HOOK_INVOKE ((this, HOOK_SCROLL_BACK, DT_INT, count, DT_INT, top_row, DT_END));
697 if (selection.op && current_screen == selection.screen)
699 if ((selection.beg.row < row1 && selection.end.row > row1)
700 || (selection.beg.row < row2 && selection.end.row > row2)
701 || (selection.beg.row - count < row1 && selection.beg.row >= row1)
702 || (selection.beg.row - count > row2 && selection.beg.row <= row2)
703 || (selection.end.row - count < row1 && selection.end.row >= row1)
704 || (selection.end.row - count > row2 && selection.end.row <= row2))
706 CLEAR_ALL_SELECTION ();
707 selection.op = SELECTION_CLEAR;
709 else if (selection.end.row >= row1 && selection.end.row <= row2)
711 /* move selected region too */
712 selection.beg.row -= count;
713 selection.end.row -= count;
714 selection.mark.row -= count;
720 // use a simple and robust scrolling algorithm, this
721 // part of scr_scroll_text is not time-critical.
723 int rows = row2 - row1 + 1;
725 min_it (count, rows);
727 line_t *temp_buf = row_buf + total_rows;
729 for (int row = 0; row < rows; row++)
731 temp_buf [row] = ROW(row1 + (row + count + rows) % rows);
733 if (!IN_RANGE_EXC (row + count, 0, rows))
734 scr_blank_screen_mem (temp_buf [row], rstyle);
737 for (int row = 0; row < rows; row++)
738 ROW(row1 + row) = temp_buf [row];
744 /* ------------------------------------------------------------------------- */
746 * Add text given in <str> of length <len> to screen struct
749 rxvt_term::scr_add_lines (const wchar_t *str, int len, int minlines) NOTHROW
751 if (len <= 0) /* sanity */
754 unsigned char checksel;
756 int ncol = this->ncol;
757 const wchar_t *strend = str + len;
764 minlines += screen.cur.row - screen.bscroll;
765 min_it (minlines, screen.cur.row - top_row);
768 && screen.tscroll == 0
769 && screen.bscroll == nrow - 1)
771 /* _at least_ this many lines need to be scrolled */
772 scr_scroll_text (screen.tscroll, screen.bscroll, minlines);
773 screen.cur.row -= minlines;
778 assert (screen.cur.col < ncol);
779 assert (screen.cur.row < nrow
780 && screen.cur.row >= top_row);
782 int row = screen.cur.row;
784 checksel = selection.op && current_screen == selection.screen ? 1 : 0;
786 line_t *line = &ROW(row);
790 c = (unicode_t)*str++; // convert to rxvt-unicodes representation
795 max_it (line->l, screen.cur.col);
797 screen.flags &= ~Screen_WrapNext;
799 if (screen.cur.row == screen.bscroll)
800 scr_scroll_text (screen.tscroll, screen.bscroll, 1);
801 else if (screen.cur.row < (nrow - 1))
802 row = ++screen.cur.row;
804 line = &ROW(row); /* _must_ refresh */
809 max_it (line->l, screen.cur.col);
811 screen.flags &= ~Screen_WrapNext;
821 if (checksel /* see if we're writing within selection */
822 && !ROWCOL_IS_BEFORE (screen.cur, selection.beg)
823 && ROWCOL_IS_BEFORE (screen.cur, selection.end))
827 * If we wrote anywhere in the selected area, kill the selection
828 * XXX: should we kill the mark too? Possibly, but maybe that
829 * should be a similar check.
834 if (screen.flags & Screen_WrapNext)
841 row = screen.cur.row;
842 line = &ROW(row); /* _must_ refresh */
845 // some utf-8 decoders "decode" surrogate characters: let's fix this.
846 if (IN_RANGE_INC (c, 0xd800, 0xdfff))
849 // rely on wcwidth to tell us the character width, do wcwidth before
850 // further replacements, as wcwidth might return -1 for the line
851 // drawing characters below as they might be invalid in the current
853 int width = WCWIDTH (c);
855 if (charsets [screen.charset] == '0') // DEC SPECIAL
857 // vt100 special graphics and line drawing
858 // 5f-7e standard vt100
859 // 40-5e rxvt extension for extra curses acs chars
860 static uint16_t vt100_0[62] = { // 41 .. 7e
861 0x2191, 0x2193, 0x2192, 0x2190, 0x2588, 0x259a, 0x2603, // 41-47 hi mr. snowman!
862 0, 0, 0, 0, 0, 0, 0, 0, // 48-4f
863 0, 0, 0, 0, 0, 0, 0, 0, // 50-57
864 0, 0, 0, 0, 0, 0, 0, 0x0020, // 58-5f
865 0x25c6, 0x2592, 0x2409, 0x240c, 0x240d, 0x240a, 0x00b0, 0x00b1, // 60-67
866 0x2424, 0x240b, 0x2518, 0x2510, 0x250c, 0x2514, 0x253c, 0x23ba, // 68-6f
867 0x23bb, 0x2500, 0x23bc, 0x23bd, 0x251c, 0x2524, 0x2534, 0x252c, // 70-77
868 0x2502, 0x2264, 0x2265, 0x03c0, 0x2260, 0x00a3, 0x00b7, // 78-7e
871 if (c >= 0x41 && c <= 0x7e && vt100_0[c - 0x41])
873 c = vt100_0[c - 0x41];
874 width = 1; // vt100 line drawing characters are always single-width
878 if (screen.flags & Screen_Insert)
879 scr_insdel_chars (width, INSERT);
884 // trim characters we can't store directly :(
886 # if ENABLE_COMBINING
887 c = rxvt_composite.compose (c); // map to lower 16 bits
893 // nuke the character at this position, if required
894 if (line->t[screen.cur.col] == NOCHAR
895 || (screen.cur.col < ncol - 1
896 && line->t[screen.cur.col + 1] == NOCHAR))
898 int col = screen.cur.col;
901 while (col > 0 && line->t[col] == NOCHAR)
904 rend_t rend = SET_FONT (line->r[col], FONTSET (line->r[col])->find_font (' '));
911 } while (col < ncol && line->t[col] == NOCHAR);
914 rend_t rend = SET_FONT (rstyle, FONTSET (rstyle)->find_font (c));
916 // if the character doesn't fit into the remaining columns...
917 if (screen.cur.col > ncol - width && ncol >= width)
921 // and try the same character next loop iteration
929 line->t[screen.cur.col] = c;
930 line->r[screen.cur.col] = rend;
932 if (screen.cur.col < ncol - 1)
937 if (screen.flags & Screen_Autowrap)
938 screen.flags |= Screen_WrapNext;
946 // pad with spaces when overwriting wide character with smaller one
951 for (int c = screen.cur.col; c < ncol && line->t[c] == NOCHAR; c++)
961 // handle combining characters
962 // we just tag the accent on the previous on-screen character.
963 // this is arguably not correct, but also arguably not wrong.
964 // we don't handle double-width characters nicely yet.
969 if (screen.cur.col > 0)
972 tp = line->t + screen.cur.col - 1;
973 rp = line->r + screen.cur.col - 1;
975 else if (screen.cur.row > 0
976 && ROW(screen.cur.row - 1).is_longer ())
978 linep = &ROW(screen.cur.row - 1);
979 tp = line->t + ncol - 1;
980 rp = line->r + ncol - 1;
987 while (*tp == NOCHAR && tp > linep->t)
990 // first try to find a precomposed character
991 unicode_t n = rxvt_compose (*tp, c);
993 n = rxvt_composite.compose (*tp, c);
996 *rp = SET_FONT (*rp, FONTSET (*rp)->find_font (*tp));
1001 max_it (line->l, screen.cur.col);
1004 assert (screen.cur.row >= 0);
1008 /* ------------------------------------------------------------------------- */
1010 * Process Backspace. Move back the cursor back a position, wrap if have to
1014 rxvt_term::scr_backspace () NOTHROW
1018 if (screen.cur.col == 0)
1020 if (screen.cur.row > 0)
1022 #ifdef TERMCAP_HAS_BW
1023 screen.cur.col = ncol - 1;
1029 else if (!(screen.flags & Screen_WrapNext))
1030 scr_gotorc (0, -1, RELATIVE);
1032 screen.flags &= ~Screen_WrapNext;
1035 /* ------------------------------------------------------------------------- */
1037 * Process Horizontal Tab
1038 * count: +ve = forward; -ve = backwards
1042 rxvt_term::scr_tab (int count, bool ht) NOTHROW
1047 i = x = screen.cur.col;
1053 line_t &l = ROW(screen.cur.row);
1054 rend_t base_rend = l.r[i];
1055 ht &= l.t[i] == ' ';
1057 for (; ++i < ncol; )
1067 && RS_SAME (l.r[i], base_rend);
1072 // store horizontal tab commands as characters inside the text
1073 // buffer so they can be selected and pasted.
1074 if (ht && option (Opt_pastableTabs))
1076 base_rend = SET_FONT (base_rend, 0);
1092 else /* if (count < 0) */
1106 if (x != screen.cur.col)
1107 scr_gotorc (0, x, R_RELATIVE);
1110 /* ------------------------------------------------------------------------- */
1112 * Process DEC Back Index
1114 * Move cursor left in row. If we're at the left boundary, shift everything
1115 * in that row right. Clear left column.
1119 rxvt_term::scr_backindex () NOTHROW
1121 if (screen.cur.col > 0)
1122 scr_gotorc (0, -1, R_RELATIVE | C_RELATIVE);
1124 scr_insdel_chars (1, INSERT);
1127 /* ------------------------------------------------------------------------- */
1129 * Process DEC Forward Index
1131 * Move cursor right in row. If we're at the right boundary, shift everything
1132 * in that row left. Clear right column.
1136 rxvt_term::scr_forwardindex () NOTHROW
1138 if (screen.cur.col < ncol - 1)
1139 scr_gotorc (0, 1, R_RELATIVE | C_RELATIVE);
1142 line_t &l = ROW(screen.cur.row);
1147 scr_gotorc (0, 0, R_RELATIVE);
1148 scr_insdel_chars (1, DELETE);
1149 scr_gotorc (0, ncol - 1, R_RELATIVE);
1154 /* ------------------------------------------------------------------------- */
1159 rxvt_term::scr_gotorc (int row, int col, int relative) NOTHROW
1164 screen.cur.col = relative & C_RELATIVE ? screen.cur.col + col : col;
1165 clamp_it (screen.cur.col, 0, ncol - 1);
1167 screen.flags &= ~Screen_WrapNext;
1169 if (relative & R_RELATIVE)
1173 if (screen.cur.row <= screen.bscroll
1174 && (screen.cur.row + row) > screen.bscroll)
1175 screen.cur.row = screen.bscroll;
1177 screen.cur.row += row;
1181 if (screen.cur.row >= screen.tscroll
1182 && (screen.cur.row + row) < screen.tscroll)
1183 screen.cur.row = screen.tscroll;
1185 screen.cur.row += row;
1190 if (screen.flags & Screen_Relative)
1191 { /* relative origin mode */
1192 screen.cur.row = row + screen.tscroll;
1193 min_it (screen.cur.row, screen.bscroll);
1196 screen.cur.row = row;
1199 clamp_it (screen.cur.row, 0, nrow - 1);
1202 /* ------------------------------------------------------------------------- */
1204 * direction should be UP or DN
1207 rxvt_term::scr_index (enum page_dirn direction) NOTHROW
1214 dirn = ((direction == UP) ? 1 : -1);
1216 screen.flags &= ~Screen_WrapNext;
1218 if ((screen.cur.row == screen.bscroll && direction == UP)
1219 || (screen.cur.row == screen.tscroll && direction == DN))
1220 scr_scroll_text (screen.tscroll, screen.bscroll, dirn);
1222 screen.cur.row += dirn;
1224 clamp_it (screen.cur.row, 0, nrow - 1);
1225 selection_check (0);
1228 /* ------------------------------------------------------------------------- */
1230 * Erase part or whole of a line
1231 * XTERM_SEQ: Clear line to right: ESC [ 0 K
1232 * XTERM_SEQ: Clear line to left : ESC [ 1 K
1233 * XTERM_SEQ: Clear whole line : ESC [ 2 K
1236 rxvt_term::scr_erase_line (int mode) NOTHROW
1238 unsigned int col, num;
1243 selection_check (1);
1245 line_t &line = ROW(screen.cur.row);
1252 case 0: /* erase to end of line */
1253 col = screen.cur.col;
1255 min_it (line.l, col);
1256 if (ROWCOL_IN_ROW_AT_OR_AFTER (selection.beg, screen.cur)
1257 || ROWCOL_IN_ROW_AT_OR_AFTER (selection.end, screen.cur))
1260 case 1: /* erase to beginning of line */
1262 num = screen.cur.col + 1;
1263 if (ROWCOL_IN_ROW_AT_OR_BEFORE (selection.beg, screen.cur)
1264 || ROWCOL_IN_ROW_AT_OR_BEFORE (selection.end, screen.cur))
1267 case 2: /* erase whole line */
1271 if (selection.beg.row <= screen.cur.row
1272 && selection.end.row >= screen.cur.row)
1279 scr_blank_line (line, col, num, rstyle);
1282 /* ------------------------------------------------------------------------- */
1284 * Erase part of whole of the screen
1285 * XTERM_SEQ: Clear screen after cursor : ESC [ 0 J
1286 * XTERM_SEQ: Clear screen before cursor: ESC [ 1 J
1287 * XTERM_SEQ: Clear whole screen : ESC [ 2 J
1290 rxvt_term::scr_erase_screen (int mode) NOTHROW
1302 case 0: /* erase to end of screen */
1303 selection_check (1);
1305 row = screen.cur.row + 1; /* possible OOB */
1308 case 1: /* erase to beginning of screen */
1309 selection_check (3);
1312 num = screen.cur.row;
1314 case 2: /* erase whole screen */
1315 selection_check (3);
1323 if (selection.op && current_screen == selection.screen
1324 && ((selection.beg.row >= row && selection.beg.row <= row + num)
1325 || (selection.end.row >= row
1326 && selection.end.row <= row + num)))
1329 if (row >= nrow) /* Out Of Bounds */
1332 min_it (num, nrow - row);
1334 if (rstyle & (RS_RVid | RS_Uline))
1335 ren = (rend_t) ~RS_None;
1336 else if (GET_BASEBG (rstyle) == Color_bg)
1338 ren = DEFAULT_RSTYLE;
1339 CLEAR_ROWS (row, num);
1343 ren = rstyle & (RS_fgMask | RS_bgMask);
1344 gcvalue.foreground = pix_colors[bgcolor_of (rstyle)];
1345 XChangeGC (dpy, gc, GCForeground, &gcvalue);
1346 ERASE_ROWS (row, num);
1347 gcvalue.foreground = pix_colors[Color_fg];
1348 XChangeGC (dpy, gc, GCForeground, &gcvalue);
1351 for (; num--; row++)
1353 scr_blank_screen_mem (ROW(row), rstyle);
1354 scr_blank_line (drawn_buf [row], 0, ncol, ren);
1360 rxvt_term::scr_erase_savelines () NOTHROW
1369 /* ------------------------------------------------------------------------- */
1371 * Fill the screen with `E's
1372 * XTERM_SEQ: Screen Alignment Test: ESC # 8
1375 rxvt_term::scr_E () NOTHROW
1383 selection_check (3);
1385 fs = SET_FONT (rstyle, FONTSET (rstyle)->find_font ('E'));
1386 for (int row = nrow; row--; )
1388 line_t &line = ROW(row);
1390 fill_text (line.t, 'E', ncol);
1391 rend_t *r1 = line.r;
1393 for (int j = ncol; j--; )
1401 /* ------------------------------------------------------------------------- */
1403 * Insert/Delete <count> lines
1406 rxvt_term::scr_insdel_lines (int count, int insdel) NOTHROW
1412 selection_check (1);
1414 if (screen.cur.row > screen.bscroll)
1417 end = screen.bscroll - screen.cur.row + 1;
1420 if (insdel == DELETE)
1422 else if (insdel == INSERT)
1428 scr_scroll_text (screen.cur.row, screen.bscroll, insdel * count);
1431 /* ------------------------------------------------------------------------- */
1433 * Insert/Delete <count> characters from the current position
1436 rxvt_term::scr_insdel_chars (int count, int insdel) NOTHROW
1449 selection_check (1);
1450 min_it (count, ncol - screen.cur.col);
1452 row = screen.cur.row;
1454 line_t *line = &ROW(row);
1457 line->is_longer (0);
1462 for (col = ncol - 1; (col - count) >= screen.cur.col; col--)
1464 line->t[col] = line->t[col - count];
1465 line->r[col] = line->r[col - count];
1468 line->l = min (line->l + count, ncol);
1470 if (selection.op && current_screen == selection.screen
1471 && ROWCOL_IN_ROW_AT_OR_AFTER (selection.beg, screen.cur))
1473 if (selection.end.row != screen.cur.row
1474 || (selection.end.col + count >= ncol))
1477 { /* shift selection */
1478 selection.beg.col += count;
1479 selection.mark.col += count; /* XXX: yes? */
1480 selection.end.col += count;
1484 scr_blank_line (*line, screen.cur.col, count, rstyle);
1488 screen.cur.col += count; /* don't worry if > ncol */
1489 selection_check (1);
1490 screen.cur.col -= count;
1492 line->l = max (line->l - count, 0);
1493 scr_blank_line (*line, screen.cur.col, count, rstyle);
1497 tr = line->r[ncol - 1] & (RS_fgMask | RS_bgMask | RS_baseattrMask);
1499 for (col = screen.cur.col; (col + count) < ncol; col++)
1501 line->t[col] = line->t[col + count];
1502 line->r[col] = line->r[col + count];
1505 line->l = max (line->l - count, 0);
1506 scr_blank_line (*line, ncol - count, count, tr);
1508 if (selection.op && current_screen == selection.screen
1509 && ROWCOL_IN_ROW_AT_OR_AFTER (selection.beg, screen.cur))
1511 if (selection.end.row != screen.cur.row
1512 || (screen.cur.col >= selection.beg.col - count)
1513 || selection.end.col >= ncol)
1517 /* shift selection */
1518 selection.beg.col -= count;
1519 selection.mark.col -= count; /* XXX: yes? */
1520 selection.end.col -= count;
1528 /* ------------------------------------------------------------------------- */
1530 * Set the scrolling region
1531 * XTERM_SEQ: Set region <top> - <bot> inclusive: ESC [ <top> ; <bot> r
1534 rxvt_term::scr_scroll_region (int top, int bot) NOTHROW
1537 min_it (bot, nrow - 1);
1542 screen.tscroll = top;
1543 screen.bscroll = bot;
1544 scr_gotorc (0, 0, 0);
1547 /* ------------------------------------------------------------------------- */
1549 * Make the cursor visible/invisible
1550 * XTERM_SEQ: Make cursor visible : ESC [ ? 25 h
1551 * XTERM_SEQ: Make cursor invisible: ESC [ ? 25 l
1554 rxvt_term::scr_cursor_visible (int mode) NOTHROW
1559 screen.flags |= Screen_VisibleCursor;
1561 screen.flags &= ~Screen_VisibleCursor;
1564 /* ------------------------------------------------------------------------- */
1566 * Set/unset automatic wrapping
1567 * XTERM_SEQ: Set Wraparound : ESC [ ? 7 h
1568 * XTERM_SEQ: Unset Wraparound: ESC [ ? 7 l
1571 rxvt_term::scr_autowrap (int mode) NOTHROW
1574 screen.flags |= Screen_Autowrap;
1576 screen.flags &= ~(Screen_Autowrap | Screen_WrapNext);
1579 /* ------------------------------------------------------------------------- */
1581 * Set/unset margin origin mode
1582 * Absolute mode: line numbers are counted relative to top margin of screen
1583 * and the cursor can be moved outside the scrolling region.
1584 * Relative mode: line numbers are relative to top margin of scrolling region
1585 * and the cursor cannot be moved outside.
1586 * XTERM_SEQ: Set Absolute: ESC [ ? 6 h
1587 * XTERM_SEQ: Set Relative: ESC [ ? 6 l
1590 rxvt_term::scr_relative_origin (int mode) NOTHROW
1593 screen.flags |= Screen_Relative;
1595 screen.flags &= ~Screen_Relative;
1597 scr_gotorc (0, 0, 0);
1600 /* ------------------------------------------------------------------------- */
1602 * Set insert/replace mode
1603 * XTERM_SEQ: Set Insert mode : ESC [ ? 4 h
1604 * XTERM_SEQ: Set Replace mode: ESC [ ? 4 l
1607 rxvt_term::scr_insert_mode (int mode) NOTHROW
1610 screen.flags |= Screen_Insert;
1612 screen.flags &= ~Screen_Insert;
1615 /* ------------------------------------------------------------------------- */
1618 * XTERM_SEQ: Set tab at current column : ESC H
1619 * XTERM_SEQ: Clear tab at current column: ESC [ 0 g
1620 * XTERM_SEQ: Clear all tabs : ESC [ 3 g
1623 rxvt_term::scr_set_tab (int mode) NOTHROW
1626 memset (tabs, 0, ncol);
1627 else if (screen.cur.col < ncol)
1628 tabs [screen.cur.col] = !!mode;
1631 /* ------------------------------------------------------------------------- */
1633 * Set reverse/normal video
1634 * XTERM_SEQ: Reverse video: ESC [ ? 5 h
1635 * XTERM_SEQ: Normal video : ESC [ ? 5 l
1638 rxvt_term::scr_rvideo_mode (bool on) NOTHROW
1646 if (rvideo_state != on)
1650 ::swap (pix_colors[Color_fg], pix_colors[Color_bg]);
1651 #ifdef HAVE_BG_PIXMAP
1652 if (bgPixmap.pixmap == None)
1654 XSetWindowBackground (dpy, vt, pix_colors[Color_bg]);
1657 gcvalue.foreground = pix_colors[Color_fg];
1658 gcvalue.background = pix_colors[Color_bg];
1659 XChangeGC (dpy, gc, GCBackground | GCForeground, &gcvalue);
1666 /* ------------------------------------------------------------------------- */
1668 * Report current cursor position
1669 * XTERM_SEQ: Report position: ESC [ 6 n
1672 rxvt_term::scr_report_position () NOTHROW
1674 tt_printf ("\033[%d;%dR", screen.cur.row + 1, screen.cur.col + 1);
1677 /* ------------------------------------------------------------------------- *
1679 * ------------------------------------------------------------------------- */
1685 rxvt_term::set_font_style () NOTHROW
1688 switch (charsets [screen.charset])
1690 case '0': /* DEC Special Character & Line Drawing Set */
1692 case 'A': /* United Kingdom (UK) */
1694 case 'B': /* United States (USASCII) */
1696 case '<': /* Multinational character set */
1698 case '5': /* Finnish character set */
1700 case 'C': /* Finnish character set */
1702 case 'K': /* German character set */
1708 /* ------------------------------------------------------------------------- */
1711 * XTERM_SEQ: Invoke G0 character set: CTRL-O
1712 * XTERM_SEQ: Invoke G1 character set: CTRL-N
1713 * XTERM_SEQ: Invoke G2 character set: ESC N
1714 * XTERM_SEQ: Invoke G3 character set: ESC O
1717 rxvt_term::scr_charset_choose (int set) NOTHROW
1719 screen.charset = set;
1723 /* ------------------------------------------------------------------------- */
1726 * XTERM_SEQ: Set G0 character set: ESC ( <C>
1727 * XTERM_SEQ: Set G1 character set: ESC ) <C>
1728 * XTERM_SEQ: Set G2 character set: ESC * <C>
1729 * XTERM_SEQ: Set G3 character set: ESC + <C>
1730 * See set_font_style for possible values for <C>
1733 rxvt_term::scr_charset_set (int set, unsigned int ch) NOTHROW
1735 charsets[set] = (unsigned char)ch;
1740 /* ------------------------------------------------------------------------- *
1741 * MAJOR SCREEN MANIPULATION *
1742 * ------------------------------------------------------------------------- */
1745 * refresh matching text.
1748 rxvt_term::scr_refresh_rend (rend_t mask, rend_t value) NOTHROW
1752 for (int i = 0; i < nrow; i++)
1754 rend_t *drp = drawn_buf[i].r;
1756 for (int col = 0; col < ncol; col++, drp++)
1757 if ((*drp & mask) == value)
1777 rxvt_term::scr_expose (int x, int y, int ewidth, int eheight, bool refresh) NOTHROW
1780 row_col_t rc[RC_COUNT];
1782 if (!drawn_buf) /* sanity check */
1785 #ifndef NO_SLOW_LINK_SUPPORT
1786 if (refresh_type == FAST_REFRESH && !display->is_local)
1794 rc[PART_BEG].col = Pixel2Col (x);
1795 rc[PART_BEG].row = Pixel2Row (y);
1797 rc[PART_END].col = Pixel2Width (x + ewidth + fwidth - 1);
1798 rc[PART_END].row = Pixel2Row (y + eheight + fheight - 1);
1801 for (i = PART_BEG; i < RC_COUNT; i++)
1803 min_it (rc[i].col, ncol - 1);
1804 min_it (rc[i].row, nrow - 1);
1806 // TODO: this line somehow causes segfault if scr_expose() is called just after resize
1807 for (i = rc[PART_BEG].row; i <= rc[PART_END].row; i++)
1808 fill_text (&drawn_buf[i].t[rc[PART_BEG].col], 0, rc[PART_END].col - rc[PART_BEG].col + 1);
1816 /* ------------------------------------------------------------------------- */
1818 * Refresh the entire screen
1821 rxvt_term::scr_touch (bool refresh) NOTHROW
1823 scr_expose (0, 0, width, height, refresh);
1826 /* ------------------------------------------------------------------------- */
1828 * Move the display so that the line represented by scrollbar value Y is at
1829 * the top of the screen
1832 rxvt_term::scr_move_to (int y, int len) NOTHROW
1834 scr_changeview ((top_row - nrow) * (len - y) / len + (nrow - 1));
1837 /* ------------------------------------------------------------------------- */
1839 * Page the screen up/down nlines
1840 * direction should be UP or DN
1843 rxvt_term::scr_page (enum page_dirn direction, int nlines) NOTHROW
1845 int new_view_start =
1846 direction == UP ? view_start - nlines
1847 : view_start + nlines;
1849 return scr_changeview (new_view_start);
1853 rxvt_term::scr_changeview (int new_view_start) NOTHROW
1855 clamp_it (new_view_start, top_row, 0);
1857 if (new_view_start == view_start)
1860 num_scr += new_view_start - view_start;
1861 view_start = new_view_start;
1864 HOOK_INVOKE ((this, HOOK_VIEW_CHANGE, DT_INT, view_start, DT_END));
1871 rxvt_term::bell_cb (time_watcher &w)
1873 rvideo_bell = false;
1874 scr_rvideo_mode (rvideo_mode);
1878 /* ------------------------------------------------------------------------- */
1880 rxvt_term::scr_bell () NOTHROW
1884 # ifndef NO_MAPALERT
1885 # ifdef MAPALERT_OPTION
1886 if (option (Opt_mapAlert))
1888 XMapWindow (dpy, parent[0]);
1892 if (option (Opt_urgentOnBell))
1894 if (XWMHints *h = XGetWMHints(dpy, parent[0]))
1896 h->flags |= XUrgencyHint;
1897 XSetWMHints (dpy, parent[0], h);
1902 if (option (Opt_visualBell))
1905 scr_rvideo_mode (rvideo_mode);
1908 bell_ev.start (NOW + VISUAL_BELL_DURATION);
1915 /* ------------------------------------------------------------------------- */
1918 rxvt_term::scr_printscreen (int fullhist) NOTHROW
1921 int nrows, row_start;
1924 if ((fd = popen_printer ()) == NULL)
1929 nrows = nrow - top_row;
1930 row_start = top_row;
1935 row_start = view_start;
1940 for (int r1 = 0; r1 < nrows; r1++)
1942 text_t *tp = ROW(r1).t;
1943 int len = ROW(r1).l;
1945 for (int i = len >= 0 ? len : ncol - 1; i--; ) //TODO//FIXME//LEN
1947 char mb[MB_LEN_MAX];
1952 len = wctomb (mb, t);
1960 fwrite (mb, 1, len, fd);
1966 pclose_printer (fd);
1970 /* ------------------------------------------------------------------------- */
1972 * Refresh the screen
1973 * drawn_text/drawn_rend contain the screen information before the update.
1974 * screen.text/screen.rend contain what the screen will change to.
1977 rxvt_term::scr_refresh () NOTHROW
1979 unsigned char have_bg,
1980 showcursor; /* show the cursor */
1981 int16_t col, row, /* column/row we're processing */
1982 ocrow; /* old cursor row */
1984 #ifndef NO_CURSORCOLOR
1985 rend_t cc1; /* store colours at cursor position (s) */
1987 rend_t *crp; // cursor rendition pointer
1988 rend_t ccol1, /* Cursor colour */
1989 ccol2; /* Cursor colour2 */
1991 want_refresh = 0; /* screen is current */
1993 if (refresh_type == NO_REFRESH || !mapped)
2002 #ifdef HAVE_BG_PIXMAP
2003 have_bg |= bgPixmap.pixmap != None;
2005 ocrow = oldcursor.row; /* is there an old outline cursor on screen? */
2008 * B: reverse any characters which are selected
2010 scr_reverse_selection ();
2013 * C: set the cursor character (s)
2016 unsigned char setoldcursor;
2018 showcursor = (screen.flags & Screen_VisibleCursor);
2026 int col = screen.cur.col;
2028 while (col && ROW(screen.cur.row).t[col] == NOCHAR)
2031 crp = &ROW(screen.cur.row).r[col];
2033 #ifndef NO_CURSORCOLOR
2034 cc1 = *crp & (RS_fgMask | RS_bgMask);
2035 if (ISSET_PIXCOLOR (Color_cursor))
2036 ccol1 = Color_cursor;
2039 #ifdef CURSOR_COLOR_IS_RENDITION_COLOR
2040 ccol1 = fgcolor_of (rstyle);
2045 #ifndef NO_CURSORCOLOR
2046 if (ISSET_PIXCOLOR (Color_cursor2))
2047 ccol2 = Color_cursor2;
2050 #ifdef CURSOR_COLOR_IS_RENDITION_COLOR
2051 ccol2 = bgcolor_of (rstyle);
2056 if (showcursor && focus)
2058 if (option (Opt_cursorUnderline))
2063 *crp = SET_FGCOLOR (*crp, ccol1);
2064 *crp = SET_BGCOLOR (*crp, ccol2);
2069 /* make sure no outline cursor is left around */
2073 if (screen.cur.row - view_start != ocrow
2074 || screen.cur.col != oldcursor.col)
2077 && oldcursor.col < ncol)
2078 drawn_buf[ocrow].r[oldcursor.col] ^= (RS_RVid | RS_Uline);
2080 if (focus || !showcursor)
2091 if (screen.cur.row - view_start >= nrow)
2095 oldcursor.row = screen.cur.row - view_start;
2096 oldcursor.col = screen.cur.col;
2101 HOOK_INVOKE ((this, HOOK_REFRESH_BEGIN, DT_END));
2103 scr_swap_overlay ();
2106 #ifndef NO_SLOW_LINK_SUPPORT
2108 * D: CopyArea pass - very useful for slower links
2109 * This has been deliberately kept simple.
2111 if (!display->is_local
2112 && refresh_type == FAST_REFRESH && num_scr_allow && num_scr
2113 && abs (num_scr) < nrow && !have_bg)
2119 dLocal (int, num_scr);
2123 row = i > 0 ? 0 : j - 1;
2125 for (; j-- >= 0; row += (i > 0 ? 1 : -1))
2127 if (row + i >= 0 && row + i < nrow && row + i != ocrow)
2129 line_t s = ROW(view_start + row);
2130 line_t d = drawn_buf[row];
2131 line_t d2 = drawn_buf[row + i];
2133 for (nits = 0, col = ncol; col--; )
2134 if (s.t[col] != d2.t[col] || s.r[col] != d2.r[col])
2136 else if (s.t[col] != d.t[col] || s.r[col] != d.r[col])
2139 if (nits > 8) /* XXX: arbitrary choice */
2141 for (col = ncol; col--; )
2157 /* also comes here at end if needed because of >= above */
2163 gcv.graphics_exposures = 1; XChangeGC (dpy, gc, GCGraphicsExposures, &gcv);
2164 XCopyArea (dpy, vt, vt,
2165 gc, 0, Row2Pixel (len + i),
2166 (unsigned int)this->width,
2167 (unsigned int)Height2Pixel (wlen - len + 1),
2168 0, Row2Pixel (len));
2169 gcv.graphics_exposures = 0; XChangeGC (dpy, gc, GCGraphicsExposures, &gcv);
2178 * E: main pass across every character
2180 for (row = 0; row < nrow; row++)
2182 text_t *stp = ROW(view_start + row).t;
2183 rend_t *srp = ROW(view_start + row).r;
2184 text_t *dtp = drawn_buf[row].t;
2185 rend_t *drp = drawn_buf[row].r;
2188 * E2: OK, now the real pass
2190 int ypixel = (int)Row2Pixel (row);
2192 for (col = 0; col < ncol; col++)
2194 /* compare new text with old - if exactly the same then continue */
2195 if (stp[col] == dtp[col] /* Must match characters to skip. */
2196 && (RS_SAME (srp[col], drp[col]) /* Either rendition the same or */
2197 || (stp[col] == ' ' /* space w/ no background change */
2198 && GET_BGATTR (srp[col]) == GET_BGATTR (drp[col]))))
2201 // redraw one or more characters
2203 // seek to the beginning of wide characters
2204 while (stp[col] == NOCHAR && col > 0)
2207 rend_t rend = srp[col]; /* screen rendition (target rendtion) */
2208 text_t *text = stp + col;
2211 dtp[col] = stp[col];
2214 int xpixel = Col2Pixel (col);
2216 for (i = 0; ++col < ncol; )
2218 if (stp[col] == NOCHAR)
2220 dtp[col] = stp[col];
2228 if (!RS_SAME (rend, srp[col]))
2233 if (stp[col] != dtp[col]
2234 || !RS_SAME (srp[col], drp[col]))
2236 if (have_bg && (i++ > count / 2))
2239 dtp[col] = stp[col];
2243 else if (have_bg || (stp[col] != ' ' && ++i >= 16))
2247 col--; /* went one too far. move back */
2248 count -= i; /* dump any matching trailing chars */
2250 // sometimes we optimize away the trailing NOCHAR's, add them back
2251 while (i && text[count] == NOCHAR)
2255 * Determine the attributes for the string
2257 int fore = fgcolor_of (rend); // desired foreground
2258 int back = bgcolor_of (rend); // desired background
2260 // only do special processing if any attributes are set, which is unlikely
2261 if (rend & (RS_Bold | RS_Italic | RS_Uline | RS_RVid | RS_Blink | RS_Careful))
2263 bool invert = rend & RS_RVid;
2265 #ifndef NO_BOLD_UNDERLINE_REVERSE
2267 && fore == Color_fg)
2269 if (ISSET_PIXCOLOR (Color_BD))
2277 if (rend & RS_Italic
2278 && fore == Color_fg)
2280 if (ISSET_PIXCOLOR (Color_IT))
2288 if (rend & RS_Uline && fore == Color_fg && ISSET_PIXCOLOR (Color_UL))
2295 if ((showcursor && row == screen.cur.row && text - stp == screen.cur.col)
2296 || !ISSET_PIXCOLOR (Color_HC))
2298 /* invert the column if no highlightColor is set or it is the
2299 * current cursor column */
2300 ::swap (fore, back);
2302 else if (ISSET_PIXCOLOR (Color_HC))
2306 #ifndef NO_BOLD_UNDERLINE_REVERSE
2308 if (ISSET_PIXCOLOR (Color_RV))
2320 if (rend & RS_Blink && (back == Color_bg || fore == Color_bg))
2322 if (!text_blink_ev.active)
2324 text_blink_ev.start (NOW + TEXT_BLINK_INTERVAL);
2327 else if (hidden_text)
2333 // "careful" (too wide) character handling
2335 // include previous careful character(s) if possible, looks nicer (best effort...)
2337 && srp[text - stp - 1] & RS_Careful
2338 && RS_SAME (rend, srp[text - stp - 1]))
2339 text--, count++, xpixel -= fwidth;
2341 // force redraw after "careful" characters to avoid pixel droppings
2342 for (int i = 0; srp[col + i] & RS_Careful && col + i < ncol - 1; i++)
2343 drp[col + i + 1] = srp[col + i + 1] ^ RS_redraw;
2345 // force redraw before "careful" characters to avoid pixel droppings
2346 for (int i = 0; srp[text - stp - i] & RS_Careful && text - i > stp; i++)
2347 drp[text - stp - i - 1] = srp[text - stp - i - 1] ^ RS_redraw;
2352 * Actually do the drawing of the string here
2354 rxvt_font *font = (*fontset[GET_STYLE (rend)])[GET_FONT (rend)];
2356 if (have_bg && back == Color_bg)
2358 // this is very ugly, maybe push it into ->draw?
2360 for (i = 0; i < count; i++) /* don't draw empty strings */
2363 font->draw (*drawable, xpixel, ypixel, text, count, fore, Color_transparent);
2367 CLEAR_CHARS (xpixel, ypixel, count);
2371 font->draw (*drawable, xpixel, ypixel, text, count, fore, back);
2373 if (rend & RS_Uline && font->descent > 1 && fore != back)
2376 if (ISSET_PIXCOLOR (Color_underline))
2377 XSetForeground (dpy, gc, pix_colors[Color_underline]);
2380 XSetForeground (dpy, gc, pix_colors[fore]);
2382 XDrawLine (dpy, drawBuffer, gc,
2383 xpixel, ypixel + font->ascent + 1,
2384 xpixel + Width2Pixel (count) - 1, ypixel + font->ascent + 1);
2386 } /* for (col....) */
2387 } /* for (row....) */
2390 scr_swap_overlay ();
2392 HOOK_INVOKE ((this, HOOK_REFRESH_END, DT_END));
2395 * G: cleanup cursor and display outline cursor if necessary
2401 if (option (Opt_cursorUnderline))
2406 #ifndef NO_CURSORCOLOR
2407 *crp = (*crp & ~ (RS_fgMask | RS_bgMask)) | cc1;
2411 else if (oldcursor.row >= 0)
2413 int cursorwidth = 1;
2414 int col = oldcursor.col;
2416 while (col && ROW(screen.cur.row).t[col] == NOCHAR)
2419 while (col + cursorwidth < ncol
2420 && drawn_buf[oldcursor.row].t[col + cursorwidth] == NOCHAR)
2423 #ifndef NO_CURSORCOLOR
2424 if (ISSET_PIXCOLOR (Color_cursor))
2425 XSetForeground (dpy, gc, pix_colors[Color_cursor]);
2428 XSetForeground (dpy, gc, pix_colors[ccol1]);
2430 XDrawRectangle (dpy, drawBuffer, gc,
2432 Row2Pixel (oldcursor.row),
2433 (unsigned int) (Width2Pixel (cursorwidth) - 1),
2434 (unsigned int) (Height2Pixel (1) - lineSpace - 1));
2439 * H: cleanup selection
2441 scr_reverse_selection ();
2448 rxvt_term::scr_remap_chars (line_t &l) NOTHROW
2453 l.touch (); // maybe a bit of an overkill, but it's not performance-relevant
2455 for (int i = ncol; i--; )
2456 l.r[i] = SET_FONT (l.r[i], FONTSET (l.r[i])->find_font (l.t[i]));
2460 rxvt_term::scr_remap_chars () NOTHROW
2462 for (int i = total_rows; i--; )
2463 scr_remap_chars (row_buf [i]);
2465 for (int i = nrow; i--; )
2467 scr_remap_chars (drawn_buf [i]);
2468 scr_remap_chars (swap_buf [i]);
2473 rxvt_term::scr_recolour () NOTHROW
2475 #ifdef HAVE_BG_PIXMAP
2478 XSetWindowBackground (dpy, parent[0], pix_colors[Color_border]);
2479 XClearWindow (dpy, parent[0]);
2480 XSetWindowBackground (dpy, vt, pix_colors[Color_bg]);
2481 # if HAVE_SCROLLBARS
2484 XSetWindowBackground (dpy, scrollBar.win, pix_colors[Color_border]);
2485 scrollBar.setIdle ();
2496 /* ------------------------------------------------------------------------- */
2498 rxvt_term::scr_clear (bool really) NOTHROW
2507 XClearWindow (dpy, vt);
2511 rxvt_term::scr_xor_rect (int beg_row, int beg_col, int end_row, int end_col, rend_t rstyle1, rend_t rstyle2) NOTHROW
2513 int view_end = view_start + nrow;
2516 for (row = max (beg_row, view_start); row <= min (end_row, view_end); row++)
2518 text_t *stp = ROW(row).t;
2519 rend_t *srp = ROW(row).r;
2521 for (col = beg_col; col < end_col; col++)
2522 srp[col] ^= rstyle1;
2524 while (col-- > beg_col && (stp[col] == NOCHAR || unicode::is_space (stp[col])))
2525 srp[col] ^= rstyle2;
2527 if (++col < end_col)
2528 srp[col] ^= rstyle2;
2533 rxvt_term::scr_xor_span (int beg_row, int beg_col, int end_row, int end_col, rend_t rstyle) NOTHROW
2535 int view_end = view_start + nrow;
2538 if (beg_row >= view_start)
2549 for (; row < min (end_row, view_end); row++, col = 0)
2550 for (rend_t *srp = ROW(row).r; col < ncol; col++)
2554 for (rend_t *srp = ROW(row).r; col < end_col; col++)
2558 /* ------------------------------------------------------------------------- */
2560 rxvt_term::scr_reverse_selection () NOTHROW
2563 && current_screen == selection.screen
2564 && selection.end.row >= view_start)
2568 scr_xor_rect (selection.beg.row, selection.beg.col,
2569 selection.end.row, selection.end.col,
2570 RS_RVid, RS_RVid | RS_Uline);
2573 scr_xor_span (selection.beg.row, selection.beg.col,
2574 selection.end.row, selection.end.col,
2579 /* ------------------------------------------------------------------------- */
2581 * Dump the whole scrollback and screen to the passed filedescriptor. The
2582 * invoking routine must close the fd.
2586 rxvt_term::scr_dump (int fd) NOTHROW
2589 unsigned int width, towrite;
2592 for (row = saveLines - nsaved;
2593 row < saveLines + nrow - 1; row++)
2595 width = row_buf[row].l >= 0 ? row_buf[row].l
2597 for (towrite = width; towrite; towrite -= wrote)
2599 wrote = write (fd, & (row_buf[row].t[width - towrite]),
2602 return; /* XXX: death, no report */
2604 if (row_buf[row].l >= 0)
2605 if (write (fd, r1, 1) <= 0)
2606 return; /* XXX: death, no report */
2611 /* ------------------------------------------------------------------------- *
2612 * CHARACTER SELECTION *
2613 * ------------------------------------------------------------------------- */
2615 rxvt_term::selection_check (int check_more) NOTHROW
2622 pos.row = pos.col = 0;
2623 if (!IN_RANGE_EXC (selection.beg.row, top_row, nrow)
2624 || !IN_RANGE_EXC (selection.mark.row, top_row, nrow)
2625 || !IN_RANGE_EXC (selection.end.row, top_row, nrow)
2627 && current_screen == selection.screen
2628 && !ROWCOL_IS_BEFORE (screen.cur, selection.beg)
2629 && ROWCOL_IS_BEFORE (screen.cur, selection.end))
2631 && ROWCOL_IS_BEFORE (selection.beg, pos)
2632 && ROWCOL_IS_AFTER (selection.end, pos))
2634 && ROWCOL_IS_AFTER (selection.end, pos))
2635 || (check_more == 4 /* screen width change */
2636 && (selection.beg.row != selection.end.row
2637 || selection.end.col > ncol)))
2641 /* ------------------------------------------------------------------------- */
2643 * Paste a selection direct to the command fd
2646 rxvt_term::paste (char *data, unsigned int len) NOTHROW
2648 /* convert normal newline chars into common keyboard Return key sequence */
2649 for (unsigned int i = 0; i < len; i++)
2650 if (data[i] == C0_LF)
2653 tt_write (data, len);
2656 /* ------------------------------------------------------------------------- */
2658 * Respond to a notification that a primary selection has been sent
2659 * EXT: SelectionNotify
2662 rxvt_term::selection_paste (Window win, Atom prop, bool delete_prop) NOTHROW
2664 if (prop == None) /* check for failed XConvertSelection */
2666 if ((selection_type & Sel_CompoundText))
2668 int selnum = selection_type & Sel_whereMask;
2671 if (selnum != Sel_direct)
2672 selection_request_other (XA_STRING, selnum);
2675 if ((selection_type & Sel_UTF8String))
2677 int selnum = selection_type & Sel_whereMask;
2679 selection_type = Sel_CompoundText;
2680 if (selnum != Sel_direct)
2681 selection_request_other (xa[XA_COMPOUND_TEXT], selnum);
2689 unsigned long bytes_after;
2692 if (XGetWindowProperty (dpy, win, prop,
2694 delete_prop, AnyPropertyType,
2695 &ct.encoding, &ct.format,
2696 &ct.nitems, &bytes_after,
2697 &ct.value) != Success)
2703 if (ct.encoding == None)
2708 // fetch and append remaining data
2711 if (XGetWindowProperty (dpy, win, prop,
2712 ct.nitems / 4, (bytes_after + 3) / 4,
2713 delete_prop, AnyPropertyType,
2714 &ct2.encoding, &ct2.format,
2715 &ct2.nitems, &bytes_after,
2716 &ct2.value) != Success)
2719 // realloc should be compatible to XFree, here, and elsewhere, too
2720 ct.value = (unsigned char *)realloc (ct.value, ct.nitems + ct2.nitems + 1);
2721 memcpy (ct.value + ct.nitems, ct2.value, ct2.nitems + 1);
2722 ct.nitems += ct2.nitems;
2730 if (ct.encoding == xa[XA_INCR])
2732 // INCR selection, start handshake
2734 XDeleteProperty (dpy, win, prop);
2736 selection_wait = Sel_incr;
2738 incr_ev.start (NOW + 10);
2745 if (selection_wait == Sel_incr)
2749 // finally complete, now paste the whole thing
2750 selection_wait = Sel_normal;
2751 ct.value = (unsigned char *)incr_buf;
2752 ct.nitems = incr_buf_fill;
2759 if (selection_wait == Sel_normal
2760 && (win != display->root || prop != XA_CUT_BUFFER0)) // avoid recursion
2763 * pass through again trying CUT_BUFFER0 if we've come from
2764 * XConvertSelection () but nothing was presented
2766 selection_paste (display->root, XA_CUT_BUFFER0, False);
2772 else if (selection_wait == Sel_incr)
2774 incr_ev.start (NOW + 10);
2776 while (incr_buf_fill + ct.nitems > incr_buf_size)
2778 incr_buf_size = incr_buf_size ? incr_buf_size * 2 : 128*1024;
2779 incr_buf = (char *)realloc (incr_buf, incr_buf_size);
2782 memcpy (incr_buf + incr_buf_fill, ct.value, ct.nitems);
2783 incr_buf_fill += ct.nitems;
2792 // xlib is horribly broken with respect to UTF8_STRING, and nobody cares to fix it
2793 // so recode it manually
2794 if (ct.encoding == xa[XA_UTF8_STRING])
2796 wchar_t *w = rxvt_utf8towcs ((const char *)ct.value, ct.nitems);
2797 char *s = rxvt_wcstombs (w);
2799 // TODO: strlen == only the first element will be converted. well...
2800 paste (s, strlen (s));
2805 if (XmbTextPropertyToTextList (dpy, &ct, &cl, &cr) >= 0
2808 for (int i = 0; i < cr; i++)
2809 paste (cl[i], strlen (cl[i]));
2811 XFreeStringList (cl);
2814 paste ((char *)ct.value, ct.nitems); // paste raw
2819 if (selection_wait == Sel_normal)
2820 selection_wait = Sel_none;
2824 rxvt_term::incr_cb (time_watcher &w) NOTHROW
2826 selection_wait = Sel_none;
2831 rxvt_warn ("data loss: timeout on INCR selection paste, ignoring.\n");
2835 rxvt_term::selection_property (Window win, Atom prop) NOTHROW
2837 if (prop == None || selection_wait != Sel_incr)
2840 selection_paste (win, prop, true);
2843 /* ------------------------------------------------------------------------- */
2845 * Request the current selection:
2846 * Order: > internal selection if available
2847 * > PRIMARY, SECONDARY, CLIPBOARD if ownership is claimed (+)
2849 * (+) if ownership is claimed but property is empty, rxvt_selection_paste ()
2850 * will auto fallback to CUT_BUFFER0
2851 * EXT: button 2 release
2854 rxvt_term::selection_request (Time tm, int selnum) NOTHROW
2856 if (selection.text && selnum == Sel_Primary)
2857 { /* internal selection */
2858 char *str = rxvt_wcstombs (selection.text, selection.len);
2859 paste (str, strlen (str));
2865 selection_request_time = tm;
2866 selection_wait = Sel_normal;
2868 #if X_HAVE_UTF8_STRING
2869 selection_type = Sel_UTF8String;
2870 if (selection_request_other (xa[XA_UTF8_STRING], selnum))
2873 selection_type = Sel_CompoundText;
2874 if (selection_request_other (xa[XA_COMPOUND_TEXT], selnum))
2879 selection_wait = Sel_none; /* don't loop in selection_paste () */
2880 selection_paste (display->root, XA_CUT_BUFFER0, false);
2884 rxvt_term::selection_request_other (Atom target, int selnum) NOTHROW
2888 selection_type |= selnum;
2890 if (selnum == Sel_Primary)
2892 else if (selnum == Sel_Secondary)
2895 sel = xa[XA_CLIPBOARD];
2897 if (XGetSelectionOwner (dpy, sel) != None)
2899 XConvertSelection (dpy, sel, target, xa[XA_VT_SELECTION],
2900 vt, selection_request_time);
2907 /* ------------------------------------------------------------------------- */
2909 * Clear all selected text
2910 * EXT: SelectionClear
2913 rxvt_term::selection_clear () NOTHROW
2916 free (selection.text);
2917 selection.text = NULL;
2921 if (display->selection_owner == this)
2922 display->selection_owner = 0;
2925 /* ------------------------------------------------------------------------- */
2927 * Copy a selection into the cut buffer
2928 * EXT: button 1 or 3 release
2931 rxvt_term::selection_make (Time tm)
2934 wchar_t *new_selection_text;
2937 switch (selection.op)
2939 case SELECTION_CONT:
2941 case SELECTION_INIT:
2944 case SELECTION_BEGIN:
2945 selection.op = SELECTION_DONE;
2951 selection.op = SELECTION_DONE;
2953 if (selection.clicks == 4)
2954 return; /* nothing selected, go away */
2956 if (HOOK_INVOKE ((this, HOOK_SEL_MAKE, DT_LONG, (long)tm, DT_END)))
2959 i = (selection.end.row - selection.beg.row + 1) * (ncol + 1);
2960 new_selection_text = (wchar_t *)rxvt_malloc ((i + 4) * sizeof (wchar_t));
2965 int col = selection.beg.col;
2966 int row = selection.beg.row;
2970 for (; row <= selection.end.row; row++, col = 0)
2975 col = selection.beg.col;
2980 end_col = ROW(row).l;
2984 if (row == selection.end.row
2989 min_it (end_col, selection.end.col);
2991 t = ROW(row).t + col;
2993 for (; col < end_col; col++)
2997 #if ENABLE_COMBINING
2998 else if (IS_COMPOSE (*t))
3000 int len = rxvt_composite.expand (*t, 0);
3008 new_selection_text = (wchar_t *)rxvt_realloc (new_selection_text, (i + 4) * sizeof (wchar_t));
3011 ofs += rxvt_composite.expand (*t++, new_selection_text + ofs);
3015 new_selection_text[ofs++] = *t++;
3022 && new_selection_text[ofs - 1] != C0_LF
3023 && unicode::is_space (new_selection_text[ofs - 1]))
3026 new_selection_text[ofs++] = C0_LF;
3030 if (!ROW(row).is_longer () && row != selection.end.row)
3031 new_selection_text[ofs++] = C0_LF;
3034 if (end_col != selection.end.col)
3035 new_selection_text[ofs++] = C0_LF;
3037 new_selection_text[ofs] = 0;
3041 free (new_selection_text);
3045 free (selection.text);
3047 // we usually allocate much more than necessary, so realloc it smaller again
3048 selection.len = ofs;
3049 selection.text = (wchar_t *)rxvt_realloc (new_selection_text, (ofs + 1) * sizeof (wchar_t));
3051 if (HOOK_INVOKE ((this, HOOK_SEL_GRAB, DT_LONG, (long)tm, DT_END)))
3054 selection_grab (tm);
3058 rxvt_term::selection_grab (Time tm) NOTHROW
3060 selection_time = tm;
3062 XSetSelectionOwner (dpy, XA_PRIMARY, vt, tm);
3063 if (XGetSelectionOwner (dpy, XA_PRIMARY) == vt)
3065 display->set_selection_owner (this);
3077 if (XwcTextListToTextProperty (dpy, &selection.text, 1, XStringStyle, &ct) >= 0)
3079 set_string_property (XA_CUT_BUFFER0, ct.value, ct.nitems);
3085 /* ------------------------------------------------------------------------- */
3087 * Mark or select text based upon number of clicks: 1, 2, or 3
3088 * EXT: button 1 press
3091 rxvt_term::selection_click (int clicks, int x, int y) NOTHROW
3093 clicks = ((clicks - 1) % 3) + 1;
3094 selection.clicks = clicks; /* save clicks so extend will work */
3096 if (clicks == 2 && !selection.rect
3097 && HOOK_INVOKE ((this, HOOK_SEL_EXTEND, DT_END)))
3099 MEvent.clicks = 1; // what a mess
3100 selection.screen = current_screen;
3101 selection.op = SELECTION_CONT;
3105 selection_start_colrow (Pixel2Col (x), Pixel2Row (y));
3107 if (clicks == 2 || clicks == 3)
3108 selection_extend_colrow (selection.mark.col,
3109 selection.mark.row - view_start,
3111 1, /* button press */
3112 0); /* click change */
3115 /* ------------------------------------------------------------------------- */
3117 * Mark a selection at the specified col/row
3120 rxvt_term::selection_start_colrow (int col, int row) NOTHROW
3124 selection.mark.row = row + view_start;
3125 selection.mark.col = col;
3127 selection.mark.row = clamp (selection.mark.row, top_row, nrow - 1);
3128 selection.mark.col = clamp (selection.mark.col, 0, ncol - 1);
3130 while (selection.mark.col > 0
3131 && ROW(selection.mark.row).t[selection.mark.col] == NOCHAR)
3132 --selection.mark.col;
3135 { /* clear the old selection */
3136 selection.beg.row = selection.end.row = selection.mark.row;
3137 selection.beg.col = selection.end.col = selection.mark.col;
3140 selection.op = SELECTION_INIT;
3141 selection.screen = current_screen;
3144 /* ------------------------------------------------------------------------- */
3146 * Word select: select text for 2 clicks
3147 * We now only find out the boundary in one direction
3150 /* what do we want: spaces/tabs are delimiters or cutchars or non-cutchars */
3151 #define DELIMIT_TEXT(x) \
3152 (unicode::is_space (x) ? 2 : (x) <= 0xff && !!strchr (rs[Rs_cutchars], (x)))
3153 #define DELIMIT_REND(x) 1
3156 rxvt_term::selection_delimit_word (enum page_dirn dirn, const row_col_t *mark, row_col_t *ret) NOTHROW
3158 int col, row, dirnadd, tcol, trow, w1, w2;
3165 bound.row = top_row - 1;
3172 bound.col = ncol - 1;
3177 col = max (mark->col, 0);
3179 /* find the edge of a word */
3180 stp = ROW(row).t + col; w1 = DELIMIT_TEXT (*stp);
3181 srp = ROW(row).r + col; w2 = DELIMIT_REND (*srp);
3185 for (; col != bound.col; col += dirnadd)
3193 if (DELIMIT_TEXT (*stp) != w1)
3195 if (DELIMIT_REND (*srp) != w2)
3199 if ((col == bound.col) && (row != bound.row))
3201 if (ROW(row - (dirn == UP ? 1 : 0)).is_longer ())
3203 trow = row + dirnadd;
3204 tcol = dirn == UP ? ncol - 1 : 0;
3209 stp = ROW(trow).t + tcol;
3210 srp = ROW(trow).r + tcol;
3212 if (DELIMIT_TEXT (*stp) != w1 || DELIMIT_REND (*srp) != w2)
3224 col++; /* put us on one past the end */
3226 /* Poke the values back in */
3231 /* ------------------------------------------------------------------------- */
3233 * Extend the selection to the specified x/y pixel location
3234 * EXT: button 3 press; button 1 or 3 drag
3235 * flag == 0 ==> button 1
3236 * flag == 1 ==> button 3 press
3237 * flag == 2 ==> button 3 motion
3240 rxvt_term::selection_extend (int x, int y, int flag) NOTHROW
3242 int col = clamp (Pixel2Col (x), 0, ncol);
3243 int row = clamp (Pixel2Row (y), 0, nrow - 1);
3246 * If we're selecting characters (single click) then we must check first
3247 * if we are at the same place as the original mark. If we are then
3248 * select nothing. Otherwise, if we're to the right of the mark, you have to
3249 * be _past_ a character for it to be selected.
3251 if (((selection.clicks % 3) == 1) && !flag
3252 && (col == selection.mark.col
3253 && (row == selection.mark.row - view_start)))
3255 /* select nothing */
3256 selection.beg.row = selection.end.row = 0;
3257 selection.beg.col = selection.end.col = 0;
3258 selection.clicks = 4;
3263 if (selection.clicks == 4)
3264 selection.clicks = 1;
3266 selection_extend_colrow (col, row, !!flag, /* ? button 3 */
3267 flag == 1 ? 1 : 0, /* ? button press */
3268 0); /* no click change */
3271 /* ------------------------------------------------------------------------- */
3273 * Extend the selection to the specified col/row
3276 rxvt_term::selection_extend_colrow (int32_t col, int32_t row, int button3, int buttonpress, int clickchange) NOTHROW
3285 switch (selection.op)
3287 case SELECTION_INIT:
3289 selection.op = SELECTION_BEGIN;
3291 case SELECTION_BEGIN:
3292 if (row != selection.mark.row || col != selection.mark.col
3293 || (!button3 && buttonpress))
3294 selection.op = SELECTION_CONT;
3296 case SELECTION_DONE:
3297 selection.op = SELECTION_CONT;
3299 case SELECTION_CONT:
3301 case SELECTION_CLEAR:
3302 selection_start_colrow (col, row);
3308 if (selection.beg.col == selection.end.col
3309 && selection.beg.col != selection.mark.col
3310 && selection.beg.row == selection.end.row
3311 && selection.beg.row != selection.mark.row)
3313 selection.beg.col = selection.end.col = selection.mark.col;
3314 selection.beg.row = selection.end.row = selection.mark.row;
3318 pos.row = view_start + row;
3321 * This is mainly xterm style selection with a couple of differences, mainly
3322 * in the way button3 drag extension works.
3323 * We're either doing: button1 drag; button3 press; or button3 drag
3324 * a) button1 drag : select around a midpoint/word/line - that point/word/line
3325 * is always at the left/right edge of the selection.
3326 * b) button3 press: extend/contract character/word/line at whichever edge of
3327 * the selection we are closest to.
3328 * c) button3 drag : extend/contract character/word/line - we select around
3329 * a point/word/line which is either the start or end of the selection
3330 * and it was decided by whichever point/word/line was `fixed' at the
3331 * time of the most recent button3 press
3333 if (button3 && buttonpress)
3334 { /* button3 press */
3336 * first determine which edge of the selection we are closest to
3338 if (ROWCOL_IS_BEFORE (pos, selection.beg)
3339 || (!ROWCOL_IS_AFTER (pos, selection.end)
3340 && (((pos.col - selection.beg.col)
3341 + ((pos.row - selection.beg.row) * ncol))
3342 < ((selection.end.col - pos.col)
3343 + ((selection.end.row - pos.row) * ncol)))))
3346 if (closeto == LEFT)
3348 selection.beg.row = pos.row;
3349 selection.beg.col = pos.col;
3350 selection.mark.row = selection.end.row;
3351 selection.mark.col = selection.end.col - (selection.clicks == 2);
3355 selection.end.row = pos.row;
3356 selection.end.col = pos.col;
3357 selection.mark.row = selection.beg.row;
3358 selection.mark.col = selection.beg.col;
3362 { /* button1 drag or button3 drag */
3363 if (ROWCOL_IS_AFTER (selection.mark, pos))
3365 if (selection.mark.row == selection.end.row
3366 && selection.mark.col == selection.end.col
3368 && selection.clicks == 2)
3369 selection.mark.col--;
3371 selection.beg.row = pos.row;
3372 selection.beg.col = pos.col;
3373 selection.end.row = selection.mark.row;
3374 selection.end.col = selection.mark.col + (selection.clicks == 2);
3378 selection.beg.row = selection.mark.row;
3379 selection.beg.col = selection.mark.col;
3380 selection.end.row = pos.row;
3381 selection.end.col = pos.col;
3385 if (selection.clicks == 1)
3387 if (selection.beg.col > ROW(selection.beg.row).l //TODO//FIXME//LEN
3388 && !ROW(selection.beg.row).is_longer ()
3393 selection.beg.col = ncol;
3396 selection.end.col > ROW(selection.end.row).l //TODO//FIXME//LEN
3397 && !ROW(selection.end.row).is_longer ()
3402 selection.end.col = ncol;
3404 else if (selection.clicks == 2)
3406 if (ROWCOL_IS_AFTER (selection.end, selection.beg))
3407 selection.end.col--;
3409 selection_delimit_word (UP, &selection.beg, &selection.beg);
3410 selection_delimit_word (DN, &selection.end, &selection.end);
3412 else if (selection.clicks == 3)
3415 if (option (Opt_tripleclickwords))
3417 selection_delimit_word (UP, &selection.beg, &selection.beg);
3419 for (int end_row = selection.mark.row; end_row < nrow; end_row++)
3421 if (!ROW(end_row).is_longer ())
3423 selection.end.row = end_row;
3424 selection.end.col = ROW(end_row).l;
3425 # if !ENABLE_MINIMAL
3426 selection_remove_trailing_spaces ();
3435 if (ROWCOL_IS_AFTER (selection.mark, selection.beg))
3436 selection.mark.col++;
3438 selection.beg.col = 0;
3439 selection.end.col = ncol;
3441 // select a complete logical line
3442 while (selection.beg.row > -saveLines
3443 && ROW(selection.beg.row - 1).is_longer ())
3444 selection.beg.row--;
3446 while (selection.end.row < nrow
3447 && ROW(selection.end.row).is_longer ())
3448 selection.end.row++;
3452 if (button3 && buttonpress)
3453 { /* mark may need to be changed */
3454 if (closeto == LEFT)
3456 selection.mark.row = selection.end.row;
3457 selection.mark.col = selection.end.col - (selection.clicks == 2);
3461 selection.mark.row = selection.beg.row;
3462 selection.mark.col = selection.beg.col;
3467 if (selection.rect && selection.beg.col > selection.end.col)
3468 ::swap (selection.beg.col, selection.end.col);
3474 rxvt_term::selection_remove_trailing_spaces () NOTHROW
3476 int32_t end_col, end_row;
3479 end_col = selection.end.col;
3480 end_row = selection.end.row;
3482 for (; end_row >= selection.beg.row; )
3484 stp = ROW(end_row).t;
3486 while (--end_col >= 0)
3488 if (stp[end_col] != NOCHAR
3489 && !unicode::is_space (stp[end_col]))
3494 || !ROW(end_row - 1).is_longer ())
3496 selection.end.col = end_col + 1;
3497 selection.end.row = end_row;
3505 if (selection.mark.row > selection.end.row)
3507 selection.mark.row = selection.end.row;
3508 selection.mark.col = selection.end.col;
3510 else if (selection.mark.row == selection.end.row
3511 && selection.mark.col > selection.end.col)
3512 selection.mark.col = selection.end.col;
3516 /* ------------------------------------------------------------------------- */
3518 * Double click on button 3 when already selected
3519 * EXT: button 3 double click
3522 rxvt_term::selection_rotate (int x, int y) NOTHROW
3524 selection.clicks = selection.clicks % 3 + 1;
3525 selection_extend_colrow (Pixel2Col (x), Pixel2Row (y), 1, 0, 1);
3528 /* ------------------------------------------------------------------------- */
3530 * Respond to a request for our current selection
3531 * EXT: SelectionRequest
3534 rxvt_term::selection_send (const XSelectionRequestEvent &rq) NOTHROW
3538 ev.type = SelectionNotify;
3540 ev.display = rq.display;
3541 ev.requestor = rq.requestor;
3542 ev.selection = rq.selection;
3543 ev.target = rq.target;
3546 if (rq.target == xa[XA_TARGETS])
3548 Atom target_list[6];
3549 Atom *target = target_list;
3551 *target++ = xa[XA_TARGETS];
3552 *target++ = xa[XA_TIMESTAMP];
3553 *target++ = XA_STRING;
3554 *target++ = xa[XA_TEXT];
3555 *target++ = xa[XA_COMPOUND_TEXT];
3556 #if X_HAVE_UTF8_STRING
3557 *target++ = xa[XA_UTF8_STRING];
3560 XChangeProperty (dpy, rq.requestor, rq.property, XA_ATOM,
3561 32, PropModeReplace,
3562 (unsigned char *)target_list, target - target_list);
3563 ev.property = rq.property;
3566 else if (rq.target == xa[XA_MULTIPLE])
3568 /* TODO: Handle MULTIPLE */
3571 else if (rq.target == xa[XA_TIMESTAMP] && selection.text)
3573 XChangeProperty (dpy, rq.requestor, rq.property, rq.target,
3574 32, PropModeReplace, (unsigned char *)&selection_time, 1);
3575 ev.property = rq.property;
3577 else if (rq.target == XA_STRING
3578 || rq.target == xa[XA_TEXT]
3579 || rq.target == xa[XA_COMPOUND_TEXT]
3580 || rq.target == xa[XA_UTF8_STRING]
3584 Atom target = rq.target;
3589 enc_string = XStringStyle,
3590 enc_text = XStdICCTextStyle,
3591 enc_compound_text = XCompoundTextStyle,
3592 #ifdef X_HAVE_UTF8_STRING
3593 enc_utf8 = XUTF8StringStyle,
3599 if (target == XA_STRING)
3600 // we actually don't do XA_STRING, but who cares, as i18n clients
3601 // will ask for another format anyways.
3603 else if (target == xa[XA_TEXT])
3605 else if (target == xa[XA_COMPOUND_TEXT])
3606 style = enc_compound_text;
3608 else if (target == xa[XA_UTF8_STRING])
3613 target = xa[XA_COMPOUND_TEXT];
3614 style = enc_compound_text;
3619 cl = selection.text;
3620 selectlen = selection.len;
3629 // xlib is horribly broken with respect to UTF8_STRING, and nobody cares to fix it
3630 // so recode it manually
3631 if (style == enc_utf8)
3634 ct.encoding = target;
3636 ct.value = (unsigned char *)rxvt_wcstoutf8 (cl, selectlen);
3637 ct.nitems = strlen ((char *)ct.value);
3641 if (XwcTextListToTextProperty (dpy, &cl, 1, (XICCEncodingStyle) style, &ct) >= 0)
3645 /* if we failed to convert then send it raw */
3646 ct.value = (unsigned char *)cl;
3647 ct.nitems = selectlen;
3648 ct.encoding = target;
3651 XChangeProperty (dpy, rq.requestor, rq.property,
3652 ct.encoding, 8, PropModeReplace,
3653 ct.value, (int)ct.nitems);
3654 ev.property = rq.property;
3660 XSendEvent (dpy, rq.requestor, False, 0L, (XEvent *)&ev);
3663 /* ------------------------------------------------------------------------- */
3666 rxvt_term::im_set_position (XPoint &pos) NOTHROW
3668 XWindowAttributes xwa;
3670 XGetWindowAttributes (dpy, vt, &xwa);
3672 pos.x = xwa.x + Col2Pixel (screen.cur.col);
3673 pos.y = xwa.y + Height2Pixel (screen.cur.row) + fbase;
3679 rxvt_term::scr_overlay_new (int x, int y, int w, int h) NOTHROW
3681 if (nrow < 1 || ncol < 1)
3688 if (x < 0) x = ncol - w;
3689 if (y < 0) y = nrow - h;
3691 // make space for border
3692 w += 2; min_it (w, ncol);
3693 h += 2; min_it (h, nrow);
3695 x -= 1; clamp_it (x, 0, ncol - w);
3696 y -= 1; clamp_it (y, 0, nrow - h);
3701 ov_text = new text_t *[h];
3702 ov_rend = new rend_t *[h];
3704 for (y = 0; y < h; y++)
3706 text_t *tp = ov_text[y] = new text_t[w];
3707 rend_t *rp = ov_rend[y] = new rend_t[w];
3710 rend_t r = OVERLAY_RSTYLE;
3713 t0 = 0x2554, t1 = 0x2550, t2 = 0x2557;
3715 t0 = 0x2551, t1 = 0x0020, t2 = 0x2551;
3717 t0 = 0x255a, t1 = 0x2550, t2 = 0x255d;
3722 for (x = w - 2; x > 0; --x)
3734 rxvt_term::scr_overlay_off () NOTHROW
3741 for (int y = 0; y < ov_h; y++)
3743 delete [] ov_text[y];
3744 delete [] ov_rend[y];
3747 delete [] ov_text; ov_text = 0;
3748 delete [] ov_rend; ov_rend = 0;
3752 rxvt_term::scr_overlay_set (int x, int y, text_t text, rend_t rend) NOTHROW
3754 if (!ov_text || x >= ov_w - 2 || y >= ov_h - 2)
3759 ov_text[y][x] = text;
3760 ov_rend[y][x] = rend;
3764 rxvt_term::scr_overlay_set (int x, int y, const char *s) NOTHROW
3767 scr_overlay_set (x++, y, *s++);
3771 rxvt_term::scr_overlay_set (int x, int y, const wchar_t *s) NOTHROW
3776 int width = WCWIDTH (t);
3780 scr_overlay_set (x++, y, t);
3787 rxvt_term::scr_swap_overlay () NOTHROW
3792 // swap screen mem with overlay
3793 for (int y = ov_h; y--; )
3795 text_t *t1 = ov_text[y];
3796 rend_t *r1 = ov_rend[y];
3798 text_t *t2 = ROW(y + ov_y + view_start).t + ov_x;
3799 rend_t *r2 = ROW(y + ov_y + view_start).r + ov_x;
3801 for (int x = ov_w; x--; )
3803 text_t t = *t1; *t1++ = *t2; *t2++ = t;
3804 rend_t r = *r1; *r1++ = *r2; *r2++ = SET_FONT (r, FONTSET (r)->find_font (t));
3810 /* ------------------------------------------------------------------------- */