1 /*---------------------------------------------------------------------------*
3 *---------------------------------------------------------------------------*
5 * Copyright (c) 1997-2001 Geoff Wing <gcw@pobox.com>
6 * Copyright (c) 2003-2007 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_CHARS: clear <num> chars starting from pixel position <x,y>
90 #define CLEAR_CHARS(x, y, num) \
92 XClearArea (dpy, vt, x, y, \
93 (unsigned int)Width2Pixel (num), \
94 (unsigned int)Height2Pixel (1), False)
96 /* ------------------------------------------------------------------------- *
97 * SCREEN `COMMON' ROUTINES *
98 * ------------------------------------------------------------------------- */
100 /* Fill part/all of a line with blanks. */
102 rxvt_term::scr_blank_line (line_t &l, unsigned int col, unsigned int width, rend_t efs) const NOTHROW
113 efs &= ~RS_baseattrMask; // remove italic etc. fontstyles
114 efs = SET_FONT (efs, FONTSET (efs)->find_font (' '));
116 text_t *et = l.t + col;
117 rend_t *er = l.r + col;
126 /* ------------------------------------------------------------------------- */
127 /* Fill a full line with blanks - make sure it is allocated first */
129 rxvt_term::scr_blank_screen_mem (line_t &l, rend_t efs) const NOTHROW
131 scr_blank_line (l, 0, ncol, efs);
137 // nuke a single wide character at the given column
139 rxvt_term::scr_kill_char (line_t &l, int col) const NOTHROW
142 while (col > 0 && l.t[col] == NOCHAR)
145 rend_t rend = l.r[col] & ~RS_baseattrMask;
146 rend = SET_FONT (rend, FONTSET (rend)->find_font (' '));
153 } while (col < ncol && l.t[col] == NOCHAR);
156 /* ------------------------------------------------------------------------- *
157 * SCREEN INITIALISATION *
158 * ------------------------------------------------------------------------- */
161 rxvt_term::scr_reset ()
172 if (ncol == prev_ncol && nrow == prev_nrow)
175 // we need at least two lines for wrapping to work correctly
176 while (nrow + saveLines < 2)
186 int prev_total_rows = prev_nrow + saveLines;
187 total_rows = nrow + saveLines;
190 screen.bscroll = nrow - 1;
195 * first time called so just malloc everything: don't rely on realloc
200 talloc = new rxvt_salloc (ncol * sizeof (text_t));
201 ralloc = new rxvt_salloc (ncol * sizeof (rend_t));
203 row_buf = (line_t *)rxvt_calloc (total_rows + nrow, sizeof (line_t));
204 drawn_buf = (line_t *)rxvt_calloc (nrow , sizeof (line_t));
205 swap_buf = (line_t *)rxvt_calloc (nrow , sizeof (line_t));
207 for (int row = nrow; row--; )
209 scr_blank_screen_mem (ROW (row), DEFAULT_RSTYLE);
210 scr_blank_screen_mem (swap_buf [row], DEFAULT_RSTYLE);
211 scr_blank_screen_mem (drawn_buf[row], DEFAULT_RSTYLE);
214 memset (charsets, 'B', sizeof (charsets));
215 rstyle = DEFAULT_RSTYLE;
216 screen.flags = Screen_DefaultFlags;
217 screen.cur.row = screen.cur.col = 0;
219 current_screen = PRIMARY;
223 swap.flags = Screen_DefaultFlags;
224 swap.cur.row = swap.cur.col = 0;
226 current_screen = SECONDARY;
228 current_screen = PRIMARY;
231 selection.text = NULL;
233 selection.op = SELECTION_CLEAR;
234 selection.screen = PRIMARY;
235 selection.clicks = 0;
240 * add or delete rows as appropriate
243 rxvt_salloc *old_ta = talloc; talloc = new rxvt_salloc (ncol * sizeof (text_t));
244 rxvt_salloc *old_ra = ralloc; ralloc = new rxvt_salloc (ncol * sizeof (rend_t));
247 if (nrow < prev_nrow)
249 for (int row = nrow; row < prev_nrow; row++)
251 lfree (swap_buf [row]);
252 lfree (drawn_buf[row]);
257 drawn_buf = (line_t *)rxvt_realloc (drawn_buf, nrow * sizeof (line_t));
258 swap_buf = (line_t *)rxvt_realloc (swap_buf , nrow * sizeof (line_t));
260 for (int row = min (nrow, prev_nrow); row--; )
262 lresize (drawn_buf[row]);
263 lresize (swap_buf [row]);
266 for (int row = prev_nrow; row < nrow; row++)
268 swap_buf [row].clear (); scr_blank_screen_mem (swap_buf [row], DEFAULT_RSTYLE);
269 drawn_buf[row].clear (); scr_blank_screen_mem (drawn_buf[row], DEFAULT_RSTYLE);
272 line_t *old_buf = row_buf;
273 row_buf = (line_t *)rxvt_calloc (total_rows + nrow, sizeof (line_t));
275 int p = MOD (term_start + prev_nrow, prev_total_rows); // previous row
276 int pend = MOD (term_start + top_row , prev_total_rows);
277 int q = total_rows; // rewrapped row
281 // Re-wrap lines. This is rather ugly, possibly because I am too dumb
282 // to come up with a lean and mean algorithm.
283 // TODO: maybe optimise when width didn't change
285 row_col_t ocur = screen.cur;
286 ocur.row = MOD (term_start + ocur.row, prev_total_rows);
290 p = MOD (p - 1, prev_total_rows);
291 assert (old_buf [MOD (p, prev_total_rows)].t);
293 int llen = old_buf [MOD (p, prev_total_rows)].l;
295 while (p != pend && old_buf [MOD (p - 1, prev_total_rows)].is_longer ())
297 p = MOD (p - 1, prev_total_rows);
303 int qlines = max (0, (llen - 1) / ncol) + 1;
305 // drop partial lines completely
314 // re-assemble the full line by destination lines
315 for (int qrow = q; qlines--; qrow++)
317 qline = row_buf + qrow;
320 qline->is_longer (1);
324 // see below for cursor adjustment rationale
326 screen.cur.row = q - (total_rows - nrow);
328 // fill a single destination line
329 while (lofs < llen && qcol < ncol)
331 int prow = lofs / prev_ncol;
332 int pcol = lofs % prev_ncol;
334 prow = MOD (p + prow, prev_total_rows);
336 // we only adjust the cursor _row_ and put it into
337 // the topmost line of "long line" it was in, as
338 // this seems to upset applications/shells/readline
340 if (prow == ocur.row)
341 screen.cur.row = q - (total_rows - nrow);
343 line_t &pline = old_buf [prow];
345 int len = min (min (prev_ncol - pcol, ncol - qcol), llen - lofs);
347 memcpy (qline->t + qcol, pline.t + pcol, len * sizeof (text_t));
348 memcpy (qline->r + qcol, pline.r + pcol, len * sizeof (rend_t));
355 qline->l = llen ? MOD (llen - 1, ncol) + 1 : 0;
356 qline->is_longer (0);
357 scr_blank_line (*qline, qline->l, ncol - qline->l, DEFAULT_RSTYLE);
359 while (p != pend && q > 0);
361 term_start = total_rows - nrow;
362 top_row = q - term_start;
364 // make sure all terminal lines exist
366 scr_blank_screen_mem (ROW (--top_row), DEFAULT_RSTYLE);
370 // if no scrollback exists (yet), wing, instead of wrap
372 for (int row = min (nrow, prev_nrow); row--; )
374 line_t &pline = old_buf [MOD (term_start + row, prev_total_rows)];
375 line_t &qline = row_buf [row];
381 for (int row = prev_nrow; row < nrow; row++)
383 row_buf [row].clear (); scr_blank_screen_mem (row_buf [row], DEFAULT_RSTYLE);
393 clamp_it (screen.cur.row, 0, nrow - 1);
394 clamp_it (screen.cur.col, 0, ncol - 1);
398 tabs = (char *)rxvt_malloc (ncol);
400 for (int col = ncol; --col; )
401 tabs [col] = col % TABSIZE == 0;
403 CLEAR_ALL_SELECTION ();
410 HOOK_INVOKE ((this, HOOK_RESET, DT_END));
413 /* ------------------------------------------------------------------------- */
415 * Free everything. That way malloc debugging can find leakage.
418 rxvt_term::scr_release () NOTHROW
422 delete talloc; talloc = 0;
423 delete ralloc; ralloc = 0;
428 row_buf = 0; // signal that we freed all the arrays above
435 /* ------------------------------------------------------------------------- */
440 rxvt_term::scr_poweron ()
443 prev_nrow = prev_ncol = 0;
453 rxvt_term::scr_soft_reset ()
455 /* only affects modes, nothing drastic such as clearing the screen */
460 if (current_screen != PRIMARY)
463 scr_scroll_region (0, MAX_ROWS - 1);
464 scr_rendition (0, ~RS_None);
468 /* ------------------------------------------------------------------------- *
469 * PROCESS SCREEN COMMANDS *
470 * ------------------------------------------------------------------------- */
472 * Save and Restore cursor
473 * XTERM_SEQ: Save cursor : ESC 7
474 * XTERM_SEQ: Restore cursor: ESC 8
477 rxvt_term::scr_cursor (cursor_mode mode) NOTHROW
481 #if NSCREENS && !defined(NO_SECONDARY_SCREEN_CURSOR)
482 if (current_screen == SECONDARY)
491 s->s_cur.row = screen.cur.row;
492 s->s_cur.col = screen.cur.col;
493 s->s_rstyle = rstyle;
494 s->s_charset = screen.charset;
495 s->s_charset_char = charsets[screen.charset];
500 screen.cur.row = s->s_cur.row;
501 screen.cur.col = s->s_cur.col;
502 screen.flags &= ~Screen_WrapNext;
503 rstyle = s->s_rstyle;
504 screen.charset = s->s_charset;
505 charsets[screen.charset] = s->s_charset_char;
510 /* boundary check in case screen size changed between SAVE and RESTORE */
511 min_it (s->cur.row, nrow - 1);
512 min_it (s->cur.col, ncol - 1);
513 assert (s->cur.row >= 0);
514 assert (s->cur.col >= 0);
518 rxvt_term::scr_swap_screen ()
520 if (!option (Opt_secondaryScreen))
523 for (int i = prev_nrow; i--; )
524 ::swap (ROW(i), swap_buf [i]);
526 ::swap (screen.cur, swap.cur);
528 screen.cur.row = clamp (screen.cur.row, 0, prev_nrow - 1);
529 screen.cur.col = clamp (screen.cur.col, 0, prev_ncol - 1);
532 /* ------------------------------------------------------------------------- */
534 * Swap between primary and secondary screens
535 * XTERM_SEQ: Primary screen : ESC [ ? 4 7 h
536 * XTERM_SEQ: Secondary screen: ESC [ ? 4 7 l
539 rxvt_term::scr_change_screen (int scrn)
541 if (scrn == current_screen)
547 selection_check (2); /* check for boundary cross */
549 int i = current_screen; current_screen = scrn; scrn = i;
552 if (option (Opt_secondaryScreen))
558 ::swap (screen.charset, swap.charset);
559 ::swap (screen.flags, swap.flags);
560 screen.flags |= Screen_VisibleCursor;
561 swap.flags |= Screen_VisibleCursor;
565 if (option (Opt_secondaryScroll))
566 scr_scroll_text (0, prev_nrow - 1, prev_nrow);
569 // clear WrapNext indicator, solidifying position on next line
571 rxvt_term::scr_do_wrap () NOTHROW
573 if (!(screen.flags & Screen_WrapNext))
576 screen.flags &= ~Screen_WrapNext;
580 if (screen.cur.row == screen.bscroll)
581 scr_scroll_text (screen.tscroll, screen.bscroll, 1);
582 else if (screen.cur.row < nrow - 1)
586 /* ------------------------------------------------------------------------- */
588 * Change the colour for following text
591 rxvt_term::scr_color (unsigned int color, int fgbg) NOTHROW
593 if (!IN_RANGE_INC (color, minCOLOR, maxTermCOLOR))
596 if (fgbg == Color_fg)
597 rstyle = SET_FGCOLOR (rstyle, color);
599 rstyle = SET_BGCOLOR (rstyle, color);
602 /* ------------------------------------------------------------------------- */
604 * Change the rendition style for following text
607 rxvt_term::scr_rendition (int set, int style) NOTHROW
611 else if (style == ~RS_None)
612 rstyle = DEFAULT_RSTYLE;
617 /* ------------------------------------------------------------------------- */
619 * Scroll text between <row1> and <row2> inclusive, by <count> lines
620 * count positive ==> scroll up
621 * count negative ==> scroll down
624 rxvt_term::scr_scroll_text (int row1, int row2, int count) NOTHROW
626 if (count == 0 || (row1 > row2))
634 && (current_screen == PRIMARY || option (Opt_secondaryScroll)))
636 top_row = max (top_row - count, -saveLines);
638 // scroll everything up 'count' lines
639 term_start = (term_start + count) % total_rows;
641 // sever bottommost line
643 line_t &l = ROW(row2 - count);
648 // erase newly scrolled-in lines
649 for (int i = count; i--; )
651 line_t &l = ROW(nrow - 1 - i);
653 // optimize if already cleared, can be significant on slow machines
654 // could be rolled into scr_blank_screen_mem
655 if (l.r && l.l < ncol - 1 && !((l.r[l.l + 1] ^ rstyle) & (RS_fgMask | RS_bgMask)))
657 scr_blank_line (l, 0, l.l, rstyle);
662 scr_blank_screen_mem (l, rstyle);
665 // now copy lines below the scroll region bottom to the
666 // bottom of the screen again, so they look as if they
668 for (int i = nrow; --i > row2; )
670 line_t &l1 = ROW(i - count);
677 // move and/or clear selection, if any
678 if (selection.op && current_screen == selection.screen)
680 selection.beg.row -= count;
681 selection.end.row -= count;
682 selection.mark.row -= count;
684 if (selection.beg.row < top_row
685 || selection.end.row < top_row
686 || selection.mark.row < top_row)
688 CLEAR_ALL_SELECTION ();
689 selection.op = SELECTION_CLEAR;
693 // finally move the view window, if desired
694 if (option (Opt_scrollWithBuffer)
696 && view_start != -saveLines)
697 scr_page (UP, count);
699 if (SHOULD_INVOKE (HOOK_SCROLL_BACK))
700 HOOK_INVOKE ((this, HOOK_SCROLL_BACK, DT_INT, count, DT_INT, top_row, DT_END));
704 if (selection.op && current_screen == selection.screen)
706 if ((selection.beg.row < row1 && selection.end.row > row1)
707 || (selection.beg.row < row2 && selection.end.row > row2)
708 || (selection.beg.row - count < row1 && selection.beg.row >= row1)
709 || (selection.beg.row - count > row2 && selection.beg.row <= row2)
710 || (selection.end.row - count < row1 && selection.end.row >= row1)
711 || (selection.end.row - count > row2 && selection.end.row <= row2))
713 CLEAR_ALL_SELECTION ();
714 selection.op = SELECTION_CLEAR;
716 else if (selection.end.row >= row1 && selection.end.row <= row2)
718 /* move selected region too */
719 selection.beg.row -= count;
720 selection.end.row -= count;
721 selection.mark.row -= count;
727 // use a simple and robust scrolling algorithm, this
728 // part of scr_scroll_text is not time-critical.
730 int rows = row2 - row1 + 1;
732 min_it (count, rows);
734 line_t *temp_buf = row_buf + total_rows;
736 for (int row = 0; row < rows; row++)
738 temp_buf [row] = ROW(row1 + (row + count + rows) % rows);
740 if (!IN_RANGE_EXC (row + count, 0, rows))
741 scr_blank_screen_mem (temp_buf [row], rstyle);
744 for (int row = 0; row < rows; row++)
745 ROW(row1 + row) = temp_buf [row];
751 /* ------------------------------------------------------------------------- */
753 * Add text given in <str> of length <len> to screen struct
756 rxvt_term::scr_add_lines (const wchar_t *str, int len, int minlines) NOTHROW
758 if (len <= 0) /* sanity */
761 unsigned char checksel;
763 int ncol = this->ncol;
764 const wchar_t *strend = str + len;
771 minlines += screen.cur.row - screen.bscroll;
772 min_it (minlines, screen.cur.row - top_row);
775 && screen.tscroll == 0
776 && screen.bscroll == nrow - 1)
778 /* _at least_ this many lines need to be scrolled */
779 scr_scroll_text (screen.tscroll, screen.bscroll, minlines);
780 screen.cur.row -= minlines;
784 assert (screen.cur.col < ncol);
785 assert (screen.cur.row < nrow
786 && screen.cur.row >= top_row);
787 int row = screen.cur.row;
789 checksel = selection.op && current_screen == selection.screen ? 1 : 0;
791 line_t *line = &ROW(row);
795 c = (unicode_t)*str++; // convert to rxvt-unicodes representation
797 if (expect_false (c < 0x20))
800 max_it (line->l, screen.cur.col);
802 screen.flags &= ~Screen_WrapNext;
804 if (screen.cur.row == screen.bscroll)
805 scr_scroll_text (screen.tscroll, screen.bscroll, 1);
806 else if (screen.cur.row < (nrow - 1))
807 row = ++screen.cur.row;
809 line = &ROW(row); /* _must_ refresh */
814 max_it (line->l, screen.cur.col);
816 screen.flags &= ~Screen_WrapNext;
827 checksel /* see if we're writing within selection */
828 && !ROWCOL_IS_BEFORE (screen.cur, selection.beg)
829 && ROWCOL_IS_BEFORE (screen.cur, selection.end)
834 * If we wrote anywhere in the selected area, kill the selection
835 * XXX: should we kill the mark too? Possibly, but maybe that
836 * should be a similar check.
841 if (expect_false (screen.flags & Screen_WrapNext))
848 row = screen.cur.row;
849 line = &ROW(row); /* _must_ refresh */
852 // some utf-8 decoders "decode" surrogate characters: let's fix this.
853 if (expect_false (IN_RANGE_INC (c, 0xd800, 0xdfff)))
856 // rely on wcwidth to tell us the character width, do wcwidth before
857 // further replacements, as wcwidth might return -1 for the line
858 // drawing characters below as they might be invalid in the current
860 int width = WCWIDTH (c);
862 if (expect_false (charsets [screen.charset] == '0')) // DEC SPECIAL
864 // vt100 special graphics and line drawing
865 // 5f-7e standard vt100
866 // 40-5e rxvt extension for extra curses acs chars
867 static uint16_t vt100_0[62] = { // 41 .. 7e
868 0x2191, 0x2193, 0x2192, 0x2190, 0x2588, 0x259a, 0x2603, // 41-47 hi mr. snowman!
869 0, 0, 0, 0, 0, 0, 0, 0, // 48-4f
870 0, 0, 0, 0, 0, 0, 0, 0, // 50-57
871 0, 0, 0, 0, 0, 0, 0, 0x0020, // 58-5f
872 0x25c6, 0x2592, 0x2409, 0x240c, 0x240d, 0x240a, 0x00b0, 0x00b1, // 60-67
873 0x2424, 0x240b, 0x2518, 0x2510, 0x250c, 0x2514, 0x253c, 0x23ba, // 68-6f
874 0x23bb, 0x2500, 0x23bc, 0x23bd, 0x251c, 0x2524, 0x2534, 0x252c, // 70-77
875 0x2502, 0x2264, 0x2265, 0x03c0, 0x2260, 0x00a3, 0x00b7, // 78-7e
878 if (c >= 0x41 && c <= 0x7e && vt100_0[c - 0x41])
880 c = vt100_0[c - 0x41];
881 width = 1; // vt100 line drawing characters are always single-width
885 if (expect_false (screen.flags & Screen_Insert))
886 scr_insdel_chars (width, INSERT);
891 // trim characters we can't store directly :(
893 # if ENABLE_COMBINING
894 c = rxvt_composite.compose (c); // map to lower 16 bits
900 // nuke the character at this position, if required
902 line->t[screen.cur.col] == NOCHAR
903 || (screen.cur.col < ncol - 1
904 && line->t[screen.cur.col + 1] == NOCHAR)
906 scr_kill_char (*line, screen.cur.col);
908 rend_t rend = SET_FONT (rstyle, FONTSET (rstyle)->find_font (c));
910 // if the character doesn't fit into the remaining columns...
911 if (expect_false (screen.cur.col > ncol - width && ncol >= width))
913 // ... artificially enlargen the previous one
915 // and try the same character next loop iteration
923 line->t[screen.cur.col] = c;
924 line->r[screen.cur.col] = rend;
926 if (expect_true (screen.cur.col < ncol - 1))
931 if (screen.flags & Screen_Autowrap)
932 screen.flags |= Screen_WrapNext;
938 while (expect_false (--width > 0));
940 // pad with spaces when overwriting wide character with smaller one
941 if (expect_false (!width))
945 for (int c = screen.cur.col; c < ncol && line->t[c] == NOCHAR; c++)
955 if (c != 0xfeff) // ignore BOM
957 // handle combining characters
958 // we just tag the accent on the previous on-screen character.
959 // this is arguably not correct, but also arguably not wrong.
960 // we don't handle double-width characters nicely yet.
965 if (screen.cur.col > 0)
968 tp = line->t + screen.cur.col - 1;
969 rp = line->r + screen.cur.col - 1;
971 else if (screen.cur.row > 0
972 && ROW(screen.cur.row - 1).is_longer ())
974 linep = &ROW(screen.cur.row - 1);
975 tp = line->t + ncol - 1;
976 rp = line->r + ncol - 1;
983 while (*tp == NOCHAR && tp > linep->t)
986 // first try to find a precomposed character
987 unicode_t n = rxvt_compose (*tp, c);
989 n = rxvt_composite.compose (*tp, c);
992 *rp = SET_FONT (*rp, FONTSET (*rp)->find_font (*tp));
998 max_it (line->l, screen.cur.col);
1000 assert (screen.cur.row >= 0);
1003 /* ------------------------------------------------------------------------- */
1005 * Process Backspace. Move back the cursor back a position, wrap if have to
1009 rxvt_term::scr_backspace () NOTHROW
1011 if (screen.cur.col == 0)
1013 if (screen.cur.row > 0)
1015 #ifdef TERMCAP_HAS_BW
1016 screen.cur.col = ncol - 1;
1024 scr_gotorc (0, -1, RELATIVE);
1027 /* ------------------------------------------------------------------------- */
1029 * Process Horizontal Tab
1030 * count: +ve = forward; -ve = backwards
1034 rxvt_term::scr_tab (int count, bool ht) NOTHROW
1039 i = x = screen.cur.col;
1045 line_t &l = ROW(screen.cur.row);
1046 rend_t base_rend = l.r[i];
1047 ht &= l.t[i] == ' ';
1049 for (; ++i < ncol; )
1059 && RS_SAME (l.r[i], base_rend);
1064 // store horizontal tab commands as characters inside the text
1065 // buffer so they can be selected and pasted.
1066 if (ht && option (Opt_pastableTabs))
1068 base_rend = SET_FONT (base_rend, 0);
1084 else /* if (count < 0) */
1098 if (x != screen.cur.col)
1099 scr_gotorc (0, x, R_RELATIVE);
1102 /* ------------------------------------------------------------------------- */
1104 * Process DEC Back Index
1106 * Move cursor left in row. If we're at the left boundary, shift everything
1107 * in that row right. Clear left column.
1111 rxvt_term::scr_backindex () NOTHROW
1113 if (screen.cur.col > 0)
1114 scr_gotorc (0, -1, R_RELATIVE | C_RELATIVE);
1116 scr_insdel_chars (1, INSERT);
1119 /* ------------------------------------------------------------------------- */
1121 * Process DEC Forward Index
1123 * Move cursor right in row. If we're at the right boundary, shift everything
1124 * in that row left. Clear right column.
1128 rxvt_term::scr_forwardindex () NOTHROW
1130 if (screen.cur.col < ncol - 1)
1131 scr_gotorc (0, 1, R_RELATIVE | C_RELATIVE);
1134 line_t &l = ROW(screen.cur.row);
1139 scr_gotorc (0, 0, R_RELATIVE);
1140 scr_insdel_chars (1, DELETE);
1141 scr_gotorc (0, ncol - 1, R_RELATIVE);
1146 /* ------------------------------------------------------------------------- */
1151 rxvt_term::scr_gotorc (int row, int col, int relative) NOTHROW
1156 screen.cur.col = relative & C_RELATIVE ? screen.cur.col + col : col;
1157 clamp_it (screen.cur.col, 0, ncol - 1);
1159 screen.flags &= ~Screen_WrapNext;
1161 if (relative & R_RELATIVE)
1165 if (screen.cur.row <= screen.bscroll
1166 && (screen.cur.row + row) > screen.bscroll)
1167 screen.cur.row = screen.bscroll;
1169 screen.cur.row += row;
1173 if (screen.cur.row >= screen.tscroll
1174 && (screen.cur.row + row) < screen.tscroll)
1175 screen.cur.row = screen.tscroll;
1177 screen.cur.row += row;
1182 if (screen.flags & Screen_Relative)
1184 /* relative origin mode */
1185 screen.cur.row = row + screen.tscroll;
1186 min_it (screen.cur.row, screen.bscroll);
1189 screen.cur.row = row;
1192 clamp_it (screen.cur.row, 0, nrow - 1);
1195 /* ------------------------------------------------------------------------- */
1197 * direction should be UP or DN
1200 rxvt_term::scr_index (enum page_dirn direction) NOTHROW
1207 dirn = ((direction == UP) ? 1 : -1);
1209 screen.flags &= ~Screen_WrapNext;
1211 if ((screen.cur.row == screen.bscroll && direction == UP)
1212 || (screen.cur.row == screen.tscroll && direction == DN))
1213 scr_scroll_text (screen.tscroll, screen.bscroll, dirn);
1215 screen.cur.row += dirn;
1217 clamp_it (screen.cur.row, 0, nrow - 1);
1218 selection_check (0);
1221 /* ------------------------------------------------------------------------- */
1223 * Erase part or whole of a line
1224 * XTERM_SEQ: Clear line to right: ESC [ 0 K
1225 * XTERM_SEQ: Clear line to left : ESC [ 1 K
1226 * XTERM_SEQ: Clear whole line : ESC [ 2 K
1227 * extension: clear to right unless wrapped: ESC [ 3 K
1230 rxvt_term::scr_erase_line (int mode) NOTHROW
1232 unsigned int col, num;
1237 selection_check (1);
1239 line_t &line = ROW(screen.cur.row);
1247 if (screen.flags & Screen_WrapNext)
1252 case 0: /* erase to end of line */
1253 col = screen.cur.col;
1255 min_it (line.l, col);
1257 if (ROWCOL_IN_ROW_AT_OR_AFTER (selection.beg, screen.cur)
1258 || ROWCOL_IN_ROW_AT_OR_AFTER (selection.end, screen.cur))
1262 case 1: /* erase to beginning of line */
1264 num = screen.cur.col + 1;
1266 if (ROWCOL_IN_ROW_AT_OR_BEFORE (selection.beg, screen.cur)
1267 || ROWCOL_IN_ROW_AT_OR_BEFORE (selection.end, screen.cur))
1271 case 2: /* erase whole line */
1275 if (selection.beg.row <= screen.cur.row
1276 && selection.end.row >= screen.cur.row)
1283 scr_blank_line (line, col, num, rstyle);
1286 /* ------------------------------------------------------------------------- */
1288 * Erase part of whole of the screen
1289 * XTERM_SEQ: Clear screen after cursor : ESC [ 0 J
1290 * XTERM_SEQ: Clear screen before cursor: ESC [ 1 J
1291 * XTERM_SEQ: Clear whole screen : ESC [ 2 J
1294 rxvt_term::scr_erase_screen (int mode) NOTHROW
1306 case 0: /* erase to end of screen */
1307 selection_check (1);
1309 row = screen.cur.row + 1; /* possible OOB */
1312 case 1: /* erase to beginning of screen */
1313 selection_check (3);
1316 num = screen.cur.row;
1318 case 2: /* erase whole screen */
1319 selection_check (3);
1327 if (selection.op && current_screen == selection.screen
1328 && ((selection.beg.row >= row && selection.beg.row <= row + num)
1329 || (selection.end.row >= row
1330 && selection.end.row <= row + num)))
1333 if (row >= nrow) /* Out Of Bounds */
1336 min_it (num, nrow - row);
1338 // TODO: the code below does not work when view_start != 0
1339 // the workaround is to disable the clear and use a normal refresh
1340 // when view_start != 0. mysterious.
1341 if (rstyle & (RS_RVid | RS_Uline))
1342 ren = (rend_t) ~RS_None;
1343 else if (GET_BASEBG (rstyle) == Color_bg)
1345 ren = DEFAULT_RSTYLE;
1347 if (mapped && !view_start)
1348 XClearArea (dpy, vt, 0,
1349 Row2Pixel (row - view_start), (unsigned int)width,
1350 (unsigned int)Height2Pixel (num), False);
1354 ren = rstyle & (RS_fgMask | RS_bgMask);
1356 if (mapped && !view_start)
1358 gcvalue.foreground = pix_colors[bgcolor_of (rstyle)];
1359 XChangeGC (dpy, gc, GCForeground, &gcvalue);
1360 XFillRectangle (dpy, vt, gc,
1361 0, Row2Pixel (row - view_start),
1362 (unsigned int)width,
1363 (unsigned int)Height2Pixel (num));
1364 gcvalue.foreground = pix_colors[Color_fg];
1365 XChangeGC (dpy, gc, GCForeground, &gcvalue);
1369 for (; num--; row++)
1371 scr_blank_screen_mem (ROW(row), rstyle);
1374 scr_blank_line (drawn_buf [row], 0, ncol, ren);
1380 rxvt_term::scr_erase_savelines () NOTHROW
1389 /* ------------------------------------------------------------------------- */
1391 * Fill the screen with `E's
1392 * XTERM_SEQ: Screen Alignment Test: ESC # 8
1395 rxvt_term::scr_E () NOTHROW
1403 selection_check (3);
1405 fs = SET_FONT (rstyle, FONTSET (rstyle)->find_font ('E'));
1406 for (int row = nrow; row--; )
1408 line_t &line = ROW(row);
1410 fill_text (line.t, 'E', ncol);
1411 rend_t *r1 = line.r;
1413 for (int j = ncol; j--; )
1421 /* ------------------------------------------------------------------------- */
1423 * Insert/Delete <count> lines
1426 rxvt_term::scr_insdel_lines (int count, int insdel) NOTHROW
1432 selection_check (1);
1434 if (screen.cur.row > screen.bscroll)
1437 end = screen.bscroll - screen.cur.row + 1;
1440 if (insdel == DELETE)
1442 else if (insdel == INSERT)
1448 scr_scroll_text (screen.cur.row, screen.bscroll, insdel * count);
1451 /* ------------------------------------------------------------------------- */
1453 * Insert/Delete <count> characters from the current position
1456 rxvt_term::scr_insdel_chars (int count, int insdel) NOTHROW
1466 selection_check (1);
1467 min_it (count, ncol - screen.cur.col);
1469 int row = screen.cur.row;
1471 line_t *line = &ROW(row);
1474 line->is_longer (0);
1476 // nuke wide spanning the start
1477 if (line->t[screen.cur.col] == NOCHAR)
1478 scr_kill_char (*line, screen.cur.col);
1483 line->l = min (line->l + count, ncol);
1485 if (line->t[screen.cur.col] == NOCHAR)
1486 scr_kill_char (*line, screen.cur.col);
1488 for (int col = ncol - 1; (col - count) >= screen.cur.col; col--)
1490 line->t[col] = line->t[col - count];
1491 line->r[col] = line->r[col - count];
1494 if (selection.op && current_screen == selection.screen
1495 && ROWCOL_IN_ROW_AT_OR_AFTER (selection.beg, screen.cur))
1497 if (selection.end.row != screen.cur.row
1498 || (selection.end.col + count >= ncol))
1502 /* shift selection */
1503 selection.beg.col += count;
1504 selection.mark.col += count; /* XXX: yes? */
1505 selection.end.col += count;
1509 scr_blank_line (*line, screen.cur.col, count, rstyle);
1513 screen.cur.col += count; /* don't worry if > ncol */
1514 selection_check (1);
1515 screen.cur.col -= count;
1517 // nuke wide char after the end
1518 if (screen.cur.col + count < ncol && line->t[screen.cur.col + count] == NOCHAR)
1519 scr_kill_char (*line, screen.cur.col + count);
1521 scr_blank_line (*line, screen.cur.col, count, rstyle);
1525 line->l = max (line->l - count, 0);
1527 // nuke wide char spanning the end
1528 if (screen.cur.col + count < ncol && line->t[screen.cur.col + count] == NOCHAR)
1529 scr_kill_char (*line, screen.cur.col + count);
1531 for (int col = screen.cur.col; (col + count) < ncol; col++)
1533 line->t[col] = line->t[col + count];
1534 line->r[col] = line->r[col + count];
1537 scr_blank_line (*line, ncol - count, count, rstyle);
1539 if (selection.op && current_screen == selection.screen
1540 && ROWCOL_IN_ROW_AT_OR_AFTER (selection.beg, screen.cur))
1542 if (selection.end.row != screen.cur.row
1543 || (screen.cur.col >= selection.beg.col - count)
1544 || selection.end.col >= ncol)
1548 /* shift selection */
1549 selection.beg.col -= count;
1550 selection.mark.col -= count; /* XXX: yes? */
1551 selection.end.col -= count;
1559 /* ------------------------------------------------------------------------- */
1561 * Set the scrolling region
1562 * XTERM_SEQ: Set region <top> - <bot> inclusive: ESC [ <top> ; <bot> r
1565 rxvt_term::scr_scroll_region (int top, int bot) NOTHROW
1568 min_it (bot, nrow - 1);
1573 screen.tscroll = top;
1574 screen.bscroll = bot;
1575 scr_gotorc (0, 0, 0);
1578 /* ------------------------------------------------------------------------- */
1580 * Make the cursor visible/invisible
1581 * XTERM_SEQ: Make cursor visible : ESC [ ? 25 h
1582 * XTERM_SEQ: Make cursor invisible: ESC [ ? 25 l
1585 rxvt_term::scr_cursor_visible (int mode) NOTHROW
1590 screen.flags |= Screen_VisibleCursor;
1592 screen.flags &= ~Screen_VisibleCursor;
1595 /* ------------------------------------------------------------------------- */
1597 * Set/unset automatic wrapping
1598 * XTERM_SEQ: Set Wraparound : ESC [ ? 7 h
1599 * XTERM_SEQ: Unset Wraparound: ESC [ ? 7 l
1602 rxvt_term::scr_autowrap (int mode) NOTHROW
1605 screen.flags |= Screen_Autowrap;
1607 screen.flags &= ~(Screen_Autowrap | Screen_WrapNext);
1610 /* ------------------------------------------------------------------------- */
1612 * Set/unset margin origin mode
1613 * Absolute mode: line numbers are counted relative to top margin of screen
1614 * and the cursor can be moved outside the scrolling region.
1615 * Relative mode: line numbers are relative to top margin of scrolling region
1616 * and the cursor cannot be moved outside.
1617 * XTERM_SEQ: Set Absolute: ESC [ ? 6 h
1618 * XTERM_SEQ: Set Relative: ESC [ ? 6 l
1621 rxvt_term::scr_relative_origin (int mode) NOTHROW
1624 screen.flags |= Screen_Relative;
1626 screen.flags &= ~Screen_Relative;
1628 scr_gotorc (0, 0, 0);
1631 /* ------------------------------------------------------------------------- */
1633 * Set insert/replace mode
1634 * XTERM_SEQ: Set Insert mode : ESC [ ? 4 h
1635 * XTERM_SEQ: Set Replace mode: ESC [ ? 4 l
1638 rxvt_term::scr_insert_mode (int mode) NOTHROW
1641 screen.flags |= Screen_Insert;
1643 screen.flags &= ~Screen_Insert;
1646 /* ------------------------------------------------------------------------- */
1649 * XTERM_SEQ: Set tab at current column : ESC H
1650 * XTERM_SEQ: Clear tab at current column: ESC [ 0 g
1651 * XTERM_SEQ: Clear all tabs : ESC [ 3 g
1654 rxvt_term::scr_set_tab (int mode) NOTHROW
1657 memset (tabs, 0, ncol);
1658 else if (screen.cur.col < ncol)
1659 tabs [screen.cur.col] = !!mode;
1662 /* ------------------------------------------------------------------------- */
1664 * Set reverse/normal video
1665 * XTERM_SEQ: Reverse video: ESC [ ? 5 h
1666 * XTERM_SEQ: Normal video : ESC [ ? 5 l
1669 rxvt_term::scr_rvideo_mode (bool on) NOTHROW
1677 if (rvideo_state != on)
1681 ::swap (pix_colors[Color_fg], pix_colors[Color_bg]);
1682 #ifdef HAVE_BG_PIXMAP
1683 if (bgPixmap.pixmap == None)
1685 XSetWindowBackground (dpy, vt, pix_colors[Color_bg]);
1688 gcvalue.foreground = pix_colors[Color_fg];
1689 gcvalue.background = pix_colors[Color_bg];
1690 XChangeGC (dpy, gc, GCBackground | GCForeground, &gcvalue);
1697 /* ------------------------------------------------------------------------- */
1699 * Report current cursor position
1700 * XTERM_SEQ: Report position: ESC [ 6 n
1703 rxvt_term::scr_report_position () NOTHROW
1705 tt_printf ("\033[%d;%dR", screen.cur.row + 1, screen.cur.col + 1);
1708 /* ------------------------------------------------------------------------- *
1710 * ------------------------------------------------------------------------- */
1716 rxvt_term::set_font_style () NOTHROW
1719 switch (charsets [screen.charset])
1721 case '0': /* DEC Special Character & Line Drawing Set */
1723 case 'A': /* United Kingdom (UK) */
1725 case 'B': /* United States (USASCII) */
1727 case '<': /* Multinational character set */
1729 case '5': /* Finnish character set */
1731 case 'C': /* Finnish character set */
1733 case 'K': /* German character set */
1739 /* ------------------------------------------------------------------------- */
1742 * XTERM_SEQ: Invoke G0 character set: CTRL-O
1743 * XTERM_SEQ: Invoke G1 character set: CTRL-N
1744 * XTERM_SEQ: Invoke G2 character set: ESC N
1745 * XTERM_SEQ: Invoke G3 character set: ESC O
1748 rxvt_term::scr_charset_choose (int set) NOTHROW
1750 screen.charset = set;
1754 /* ------------------------------------------------------------------------- */
1757 * XTERM_SEQ: Set G0 character set: ESC ( <C>
1758 * XTERM_SEQ: Set G1 character set: ESC ) <C>
1759 * XTERM_SEQ: Set G2 character set: ESC * <C>
1760 * XTERM_SEQ: Set G3 character set: ESC + <C>
1761 * See set_font_style for possible values for <C>
1764 rxvt_term::scr_charset_set (int set, unsigned int ch) NOTHROW
1766 charsets[set] = (unsigned char)ch;
1771 /* ------------------------------------------------------------------------- *
1772 * MAJOR SCREEN MANIPULATION *
1773 * ------------------------------------------------------------------------- */
1776 * refresh matching text.
1779 rxvt_term::scr_refresh_rend (rend_t mask, rend_t value) NOTHROW
1783 for (int i = 0; i < nrow; i++)
1785 rend_t *drp = drawn_buf[i].r;
1787 for (int col = 0; col < ncol; col++, drp++)
1788 if ((*drp & mask) == value)
1808 rxvt_term::scr_expose (int x, int y, int ewidth, int eheight, bool refresh) NOTHROW
1811 row_col_t rc[RC_COUNT];
1813 if (!drawn_buf) /* sanity check */
1816 #ifndef NO_SLOW_LINK_SUPPORT
1817 if (refresh_type == FAST_REFRESH && !display->is_local)
1825 rc[PART_BEG].col = Pixel2Col (x);
1826 rc[PART_BEG].row = Pixel2Row (y);
1828 rc[PART_END].col = Pixel2Width (x + ewidth + fwidth - 1);
1829 rc[PART_END].row = Pixel2Row (y + eheight + fheight - 1);
1832 for (i = PART_BEG; i < RC_COUNT; i++)
1834 min_it (rc[i].col, ncol - 1);
1835 min_it (rc[i].row, nrow - 1);
1837 // TODO: this line somehow causes segfault if scr_expose() is called just after resize
1838 for (i = rc[PART_BEG].row; i <= rc[PART_END].row; i++)
1839 fill_text (&drawn_buf[i].t[rc[PART_BEG].col], 0, rc[PART_END].col - rc[PART_BEG].col + 1);
1847 /* ------------------------------------------------------------------------- */
1849 * Refresh the entire screen
1852 rxvt_term::scr_touch (bool refresh) NOTHROW
1854 scr_expose (0, 0, width, height, refresh);
1857 /* ------------------------------------------------------------------------- */
1859 * Move the display so that the line represented by scrollbar value Y is at
1860 * the top of the screen
1863 rxvt_term::scr_move_to (int y, int len) NOTHROW
1865 scr_changeview ((top_row - nrow) * (len - y) / len + (nrow - 1));
1868 /* ------------------------------------------------------------------------- */
1870 * Page the screen up/down nlines
1871 * direction should be UP or DN
1874 rxvt_term::scr_page (enum page_dirn direction, int nlines) NOTHROW
1876 int new_view_start =
1877 direction == UP ? view_start - nlines
1878 : view_start + nlines;
1880 return scr_changeview (new_view_start);
1884 rxvt_term::scr_changeview (int new_view_start) NOTHROW
1886 clamp_it (new_view_start, top_row, 0);
1888 if (new_view_start == view_start)
1891 num_scr += new_view_start - view_start;
1892 view_start = new_view_start;
1895 HOOK_INVOKE ((this, HOOK_VIEW_CHANGE, DT_INT, view_start, DT_END));
1902 rxvt_term::bell_cb (ev::timer &w, int revents)
1904 rvideo_bell = false;
1905 scr_rvideo_mode (rvideo_mode);
1910 /* ------------------------------------------------------------------------- */
1912 rxvt_term::scr_bell () NOTHROW
1916 # ifndef NO_MAPALERT
1917 # ifdef MAPALERT_OPTION
1918 if (option (Opt_mapAlert))
1920 XMapWindow (dpy, parent[0]);
1924 if (option (Opt_urgentOnBell))
1928 if (option (Opt_visualBell))
1931 scr_rvideo_mode (rvideo_mode);
1934 bell_ev.start (VISUAL_BELL_DURATION);
1941 /* ------------------------------------------------------------------------- */
1944 rxvt_term::scr_printscreen (int fullhist) NOTHROW
1947 int nrows, row_start;
1948 FILE *fd = popen_printer ();
1955 nrows = nrow - top_row;
1956 row_start = top_row;
1961 row_start = view_start;
1966 for (int r1 = row_start; r1 < row_start + nrows; r1++)
1968 text_t *tp = ROW(r1).t;
1969 int len = ROW(r1).l;
1971 for (int i = len >= 0 ? len : ncol - 1; i--; ) //TODO//FIXME//LEN
1973 char mb[MB_LEN_MAX];
1978 len = wctomb (mb, t);
1986 fwrite (mb, 1, len, fd);
1992 pclose_printer (fd);
1996 /* ------------------------------------------------------------------------- */
1998 * Refresh the screen
1999 * drawn_text/drawn_rend contain the screen information before the update.
2000 * screen.text/screen.rend contain what the screen will change to.
2003 rxvt_term::scr_refresh () NOTHROW
2005 int16_t col, row, /* column/row we're processing */
2006 ocrow; /* old cursor row */
2008 #ifndef NO_CURSORCOLOR
2009 rend_t cc1; /* store colours at cursor position (s) */
2011 rend_t *crp; // cursor rendition pointer
2012 rend_t ccol1, /* Cursor colour */
2013 ccol2; /* Cursor colour2 */
2015 want_refresh = 0; /* screen is current */
2017 if (refresh_type == NO_REFRESH || !mapped)
2025 unsigned int old_screen_flags = screen.flags;
2027 #ifdef HAVE_BG_PIXMAP
2028 have_bg = bgPixmap.pixmap != None;
2030 ocrow = oldcursor.row; /* is there an old outline cursor on screen? */
2033 * B: reverse any characters which are selected
2035 scr_reverse_selection ();
2037 HOOK_INVOKE ((this, HOOK_REFRESH_BEGIN, DT_END));
2039 scr_swap_overlay ();
2042 char showcursor = screen.flags & Screen_VisibleCursor;
2045 * C: set the cursor character (s)
2048 unsigned char setoldcursor;
2057 int col = screen.cur.col;
2059 while (col && ROW(screen.cur.row).t[col] == NOCHAR)
2062 crp = &ROW(screen.cur.row).r[col];
2064 #ifndef NO_CURSORCOLOR
2065 cc1 = *crp & (RS_fgMask | RS_bgMask);
2066 if (ISSET_PIXCOLOR (Color_cursor))
2067 ccol1 = Color_cursor;
2070 #ifdef CURSOR_COLOR_IS_RENDITION_COLOR
2071 ccol1 = fgcolor_of (rstyle);
2076 #ifndef NO_CURSORCOLOR
2077 if (ISSET_PIXCOLOR (Color_cursor2))
2078 ccol2 = Color_cursor2;
2081 #ifdef CURSOR_COLOR_IS_RENDITION_COLOR
2082 ccol2 = bgcolor_of (rstyle);
2087 if (showcursor && focus)
2089 if (option (Opt_cursorUnderline))
2094 *crp = SET_FGCOLOR (*crp, ccol1);
2095 *crp = SET_BGCOLOR (*crp, ccol2);
2100 /* make sure no outline cursor is left around */
2104 if (screen.cur.row - view_start != ocrow
2105 || screen.cur.col != oldcursor.col)
2108 && oldcursor.col < ncol)
2109 drawn_buf[ocrow].r[oldcursor.col] ^= (RS_RVid | RS_Uline);
2111 if (focus || !showcursor)
2122 if (screen.cur.row - view_start >= nrow)
2126 oldcursor.row = screen.cur.row - view_start;
2127 oldcursor.col = screen.cur.col;
2132 #ifndef NO_SLOW_LINK_SUPPORT
2134 * D: CopyArea pass - very useful for slower links
2135 * This has been deliberately kept simple.
2137 if (!display->is_local
2138 && refresh_type == FAST_REFRESH && num_scr_allow && num_scr
2139 && abs (num_scr) < nrow && !have_bg)
2145 dLocal (int, num_scr);
2149 row = i > 0 ? 0 : j - 1;
2151 for (; j-- >= 0; row += (i > 0 ? 1 : -1))
2153 if (row + i >= 0 && row + i < nrow && row + i != ocrow)
2155 line_t s = ROW(view_start + row);
2156 line_t d = drawn_buf[row];
2157 line_t d2 = drawn_buf[row + i];
2159 for (nits = 0, col = ncol; col--; )
2160 if (s.t[col] != d2.t[col] || s.r[col] != d2.r[col])
2162 else if (s.t[col] != d.t[col] || s.r[col] != d.r[col])
2165 if (nits > 8) /* XXX: arbitrary choice */
2167 for (col = ncol; col--; )
2183 /* also comes here at end if needed because of >= above */
2189 gcv.graphics_exposures = 1; XChangeGC (dpy, gc, GCGraphicsExposures, &gcv);
2190 XCopyArea (dpy, vt, vt,
2191 gc, 0, Row2Pixel (len + i),
2192 (unsigned int)this->width,
2193 (unsigned int)Height2Pixel (wlen - len + 1),
2194 0, Row2Pixel (len));
2195 gcv.graphics_exposures = 0; XChangeGC (dpy, gc, GCGraphicsExposures, &gcv);
2204 * E: main pass across every character
2206 for (row = 0; row < nrow; row++)
2208 text_t *stp = ROW(view_start + row).t;
2209 rend_t *srp = ROW(view_start + row).r;
2210 text_t *dtp = drawn_buf[row].t;
2211 rend_t *drp = drawn_buf[row].r;
2214 * E2: OK, now the real pass
2216 int ypixel = (int)Row2Pixel (row);
2218 for (col = 0; col < ncol; col++)
2220 /* compare new text with old - if exactly the same then continue */
2221 if (stp[col] == dtp[col] /* Must match characters to skip. */
2222 && (RS_SAME (srp[col], drp[col]) /* Either rendition the same or */
2223 || (stp[col] == ' ' /* space w/ no background change */
2224 && GET_BGATTR (srp[col]) == GET_BGATTR (drp[col]))))
2227 // redraw one or more characters
2229 // seek to the beginning of wide characters
2230 while (expect_false (stp[col] == NOCHAR && col > 0))
2233 rend_t rend = srp[col]; /* screen rendition (target rendtion) */
2234 text_t *text = stp + col;
2237 dtp[col] = stp[col];
2240 int xpixel = Col2Pixel (col);
2242 for (i = 0; ++col < ncol; )
2244 if (stp[col] == NOCHAR)
2246 dtp[col] = stp[col];
2247 drp[col] = srp[col];
2255 if (!RS_SAME (rend, srp[col]))
2260 if (stp[col] != dtp[col]
2261 || !RS_SAME (srp[col], drp[col]))
2263 if (have_bg && (i++ > count / 2))
2266 dtp[col] = stp[col];
2270 else if (have_bg || (stp[col] != ' ' && ++i >= 16))
2274 col--; /* went one too far. move back */
2275 count -= i; /* dump any matching trailing chars */
2277 // sometimes we optimize away the trailing NOCHAR's, add them back
2278 while (expect_false (i && text[count] == NOCHAR))
2282 * Determine the attributes for the string
2284 int fore = fgcolor_of (rend); // desired foreground
2285 int back = bgcolor_of (rend); // desired background
2287 // only do special processing if any attributes are set, which is unlikely
2288 if (expect_false (rend & (RS_Bold | RS_Italic | RS_Uline | RS_RVid | RS_Blink | RS_Careful)))
2290 bool invert = rend & RS_RVid;
2292 #ifndef NO_BOLD_UNDERLINE_REVERSE
2293 if (rend & RS_Bold && fore == Color_fg)
2295 if (ISSET_PIXCOLOR (Color_BD))
2303 if (rend & RS_Italic && fore == Color_fg)
2305 if (ISSET_PIXCOLOR (Color_IT))
2313 if (rend & RS_Uline && fore == Color_fg && ISSET_PIXCOLOR (Color_UL))
2320 if ((showcursor && row == screen.cur.row && text - stp == screen.cur.col)
2321 || !ISSET_PIXCOLOR (Color_HC))
2323 /* invert the column if no highlightColor is set or it is the
2324 * current cursor column */
2325 ::swap (fore, back);
2327 else if (ISSET_PIXCOLOR (Color_HC))
2331 #ifndef NO_BOLD_UNDERLINE_REVERSE
2333 if (ISSET_PIXCOLOR (Color_RV))
2345 if (rend & RS_Blink && (back == Color_bg || fore == Color_bg))
2347 if (!text_blink_ev.is_active ())
2349 text_blink_ev.again ();
2352 else if (hidden_text)
2358 // "careful" (too wide) character handling
2360 // include previous careful character(s) if possible, looks nicer (best effort...)
2362 && srp[text - stp - 1] & RS_Careful
2363 && RS_SAME (rend, srp[text - stp - 1]))
2364 text--, count++, xpixel -= fwidth;
2366 // force redraw after "careful" characters to avoid pixel droppings
2367 for (int i = 0; srp[col + i] & RS_Careful && col + i < ncol - 1; i++)
2368 drp[col + i + 1] = srp[col + i + 1] ^ RS_redraw;
2370 // force redraw before "careful" characters to avoid pixel droppings
2371 for (int i = 0; srp[text - stp - i] & RS_Careful && text - i > stp; i++)
2372 drp[text - stp - i - 1] = srp[text - stp - i - 1] ^ RS_redraw;
2377 * Actually do the drawing of the string here
2379 rxvt_font *font = (*fontset[GET_STYLE (rend)])[GET_FONT (rend)];
2381 if (expect_true (have_bg && back == Color_bg))
2383 // this is very ugly, maybe push it into ->draw?
2385 for (i = 0; i < count; i++) /* don't draw empty strings */
2388 font->draw (*drawable, xpixel, ypixel, text, count, fore, Color_transparent);
2392 CLEAR_CHARS (xpixel, ypixel, count);
2396 font->draw (*drawable, xpixel, ypixel, text, count, fore, back);
2398 if (expect_false (rend & RS_Uline && font->descent > 1 && fore != back))
2401 if (ISSET_PIXCOLOR (Color_underline))
2402 XSetForeground (dpy, gc, pix_colors[Color_underline]);
2405 XSetForeground (dpy, gc, pix_colors[fore]);
2407 XDrawLine (dpy, vt, gc,
2408 xpixel, ypixel + font->ascent + 1,
2409 xpixel + Width2Pixel (count) - 1, ypixel + font->ascent + 1);
2411 } /* for (col....) */
2412 } /* for (row....) */
2415 * G: cleanup cursor and display outline cursor if necessary
2421 if (option (Opt_cursorUnderline))
2426 #ifndef NO_CURSORCOLOR
2427 *crp = (*crp & ~ (RS_fgMask | RS_bgMask)) | cc1;
2431 else if (oldcursor.row >= 0)
2433 int cursorwidth = 1;
2434 int col = oldcursor.col;
2436 while (col && ROW(screen.cur.row).t[col] == NOCHAR)
2439 while (col + cursorwidth < ncol
2440 && drawn_buf[oldcursor.row].t[col + cursorwidth] == NOCHAR)
2443 #ifndef NO_CURSORCOLOR
2444 if (ISSET_PIXCOLOR (Color_cursor))
2445 XSetForeground (dpy, gc, pix_colors[Color_cursor]);
2448 XSetForeground (dpy, gc, pix_colors[ccol1]);
2450 XDrawRectangle (dpy, vt, gc,
2452 Row2Pixel (oldcursor.row),
2453 (unsigned int) (Width2Pixel (cursorwidth) - 1),
2454 (unsigned int) (Height2Pixel (1) - lineSpace - 1));
2459 * H: cleanup selection
2462 scr_swap_overlay ();
2464 HOOK_INVOKE ((this, HOOK_REFRESH_END, DT_END));
2466 scr_reverse_selection ();
2468 screen.flags = old_screen_flags;
2474 rxvt_term::scr_remap_chars (line_t &l) NOTHROW
2479 l.touch (); // maybe a bit of an overkill, but it's not performance-relevant
2481 for (int i = ncol; i--; )
2482 l.r[i] = SET_FONT (l.r[i], FONTSET (l.r[i])->find_font (l.t[i]));
2486 rxvt_term::scr_remap_chars () NOTHROW
2488 for (int i = total_rows; i--; )
2489 scr_remap_chars (row_buf [i]);
2491 for (int i = nrow; i--; )
2493 scr_remap_chars (drawn_buf [i]);
2494 scr_remap_chars (swap_buf [i]);
2499 rxvt_term::scr_recolour () NOTHROW
2501 #ifdef HAVE_BG_PIXMAP
2505 XSetWindowBackground (dpy, parent[0], pix_colors[Color_border]);
2506 XClearWindow (dpy, parent[0]);
2507 XSetWindowBackground (dpy, vt, pix_colors[Color_bg]);
2511 XSetWindowBackground (dpy, scrollBar.win, pix_colors[Color_border]);
2512 scrollBar.state = STATE_IDLE;
2518 /* bgPixmap.apply () does not do the following : */
2524 /* ------------------------------------------------------------------------- */
2526 rxvt_term::scr_clear (bool really) NOTHROW
2535 XClearWindow (dpy, vt);
2539 rxvt_term::scr_xor_rect (int beg_row, int beg_col, int end_row, int end_col, rend_t rstyle1, rend_t rstyle2) NOTHROW
2541 int view_end = view_start + nrow;
2544 for (row = max (beg_row, view_start); row <= min (end_row, view_end); row++)
2546 text_t *stp = ROW(row).t;
2547 rend_t *srp = ROW(row).r;
2549 for (col = beg_col; col < end_col; col++)
2550 srp[col] ^= rstyle1;
2552 while (col-- > beg_col && (stp[col] == NOCHAR || unicode::is_space (stp[col])))
2553 srp[col] ^= rstyle2;
2555 if (++col < end_col)
2556 srp[col] ^= rstyle2;
2561 rxvt_term::scr_xor_span (int beg_row, int beg_col, int end_row, int end_col, rend_t rstyle) NOTHROW
2563 int view_end = view_start + nrow;
2566 if (beg_row >= view_start)
2577 for (; row < min (end_row, view_end); row++, col = 0)
2578 for (rend_t *srp = ROW(row).r; col < ncol; col++)
2582 for (rend_t *srp = ROW(row).r; col < end_col; col++)
2586 /* ------------------------------------------------------------------------- */
2588 rxvt_term::scr_reverse_selection () NOTHROW
2591 && current_screen == selection.screen
2592 && selection.end.row >= view_start)
2596 scr_xor_rect (selection.beg.row, selection.beg.col,
2597 selection.end.row, selection.end.col,
2598 RS_RVid, RS_RVid | RS_Uline);
2601 scr_xor_span (selection.beg.row, selection.beg.col,
2602 selection.end.row, selection.end.col,
2607 /* ------------------------------------------------------------------------- */
2609 * Dump the whole scrollback and screen to the passed filedescriptor. The
2610 * invoking routine must close the fd.
2614 rxvt_term::scr_dump (int fd) NOTHROW
2617 unsigned int width, towrite;
2620 for (row = saveLines + top_row;
2621 row < saveLines + nrow - 1; row++)
2623 width = row_buf[row].l >= 0 ? row_buf[row].l
2625 for (towrite = width; towrite; towrite -= wrote)
2627 wrote = write (fd, & (row_buf[row].t[width - towrite]),
2630 return; /* XXX: death, no report */
2632 if (row_buf[row].l >= 0)
2633 if (write (fd, r1, 1) <= 0)
2634 return; /* XXX: death, no report */
2639 /* ------------------------------------------------------------------------- *
2640 * CHARACTER SELECTION *
2641 * ------------------------------------------------------------------------- */
2643 rxvt_term::selection_check (int check_more) NOTHROW
2650 pos.row = pos.col = 0;
2651 if (!IN_RANGE_EXC (selection.beg.row, top_row, nrow)
2652 || !IN_RANGE_EXC (selection.mark.row, top_row, nrow)
2653 || !IN_RANGE_EXC (selection.end.row, top_row, nrow)
2655 && current_screen == selection.screen
2656 && !ROWCOL_IS_BEFORE (screen.cur, selection.beg)
2657 && ROWCOL_IS_BEFORE (screen.cur, selection.end))
2659 && ROWCOL_IS_BEFORE (selection.beg, pos)
2660 && ROWCOL_IS_AFTER (selection.end, pos))
2662 && ROWCOL_IS_AFTER (selection.end, pos))
2663 || (check_more == 4 /* screen width change */
2664 && (selection.beg.row != selection.end.row
2665 || selection.end.col > ncol)))
2669 /* ------------------------------------------------------------------------- */
2671 * Paste a selection direct to the command fd
2674 rxvt_term::paste (char *data, unsigned int len) NOTHROW
2676 /* convert normal newline chars into common keyboard Return key sequence */
2677 for (unsigned int i = 0; i < len; i++)
2678 if (data[i] == C0_LF)
2681 if (priv_modes & PrivMode_BracketPaste)
2682 tt_printf ("\e[200~");
2684 tt_write (data, len);
2686 if (priv_modes & PrivMode_BracketPaste)
2687 tt_printf ("\e[201~");
2690 /* ------------------------------------------------------------------------- */
2692 * Respond to a notification that a primary selection has been sent
2693 * EXT: SelectionNotify
2696 rxvt_term::selection_paste (Window win, Atom prop, bool delete_prop) NOTHROW
2698 if (prop == None) /* check for failed XConvertSelection */
2700 if ((selection_type & Sel_CompoundText))
2702 int selnum = selection_type & Sel_whereMask;
2705 if (selnum != Sel_direct)
2706 selection_request_other (XA_STRING, selnum);
2709 if ((selection_type & Sel_UTF8String))
2711 int selnum = selection_type & Sel_whereMask;
2713 selection_type = Sel_CompoundText;
2714 if (selnum != Sel_direct)
2715 selection_request_other (xa[XA_COMPOUND_TEXT], selnum);
2723 unsigned long bytes_after;
2726 if (XGetWindowProperty (dpy, win, prop,
2728 delete_prop, AnyPropertyType,
2729 &ct.encoding, &ct.format,
2730 &ct.nitems, &bytes_after,
2731 &ct.value) != Success)
2737 if (ct.encoding == None)
2742 // fetch and append remaining data
2745 if (XGetWindowProperty (dpy, win, prop,
2746 ct.nitems / 4, (bytes_after + 3) / 4,
2747 delete_prop, AnyPropertyType,
2748 &ct2.encoding, &ct2.format,
2749 &ct2.nitems, &bytes_after,
2750 &ct2.value) != Success)
2753 // realloc should be compatible to XFree, here, and elsewhere, too
2754 ct.value = (unsigned char *)realloc (ct.value, ct.nitems + ct2.nitems + 1);
2755 memcpy (ct.value + ct.nitems, ct2.value, ct2.nitems + 1);
2756 ct.nitems += ct2.nitems;
2764 if (ct.encoding == xa[XA_INCR])
2766 // INCR selection, start handshake
2768 XDeleteProperty (dpy, win, prop);
2770 selection_wait = Sel_incr;
2779 if (selection_wait == Sel_incr)
2783 // finally complete, now paste the whole thing
2784 selection_wait = Sel_normal;
2785 ct.value = (unsigned char *)incr_buf;
2786 ct.nitems = incr_buf_fill;
2793 if (selection_wait == Sel_normal
2794 && (win != display->root || prop != XA_CUT_BUFFER0)) // avoid recursion
2797 * pass through again trying CUT_BUFFER0 if we've come from
2798 * XConvertSelection () but nothing was presented
2800 selection_paste (display->root, XA_CUT_BUFFER0, False);
2806 else if (selection_wait == Sel_incr)
2810 while (incr_buf_fill + ct.nitems > incr_buf_size)
2812 incr_buf_size = incr_buf_size ? incr_buf_size * 2 : 128*1024;
2813 incr_buf = (char *)realloc (incr_buf, incr_buf_size);
2816 memcpy (incr_buf + incr_buf_fill, ct.value, ct.nitems);
2817 incr_buf_fill += ct.nitems;
2826 // xlib is horribly broken with respect to UTF8_STRING, and nobody cares to fix it
2827 // so recode it manually
2828 if (ct.encoding == xa[XA_UTF8_STRING])
2830 wchar_t *w = rxvt_utf8towcs ((const char *)ct.value, ct.nitems);
2831 char *s = rxvt_wcstombs (w);
2833 // TODO: strlen == only the first element will be converted. well...
2834 paste (s, strlen (s));
2839 if (XmbTextPropertyToTextList (dpy, &ct, &cl, &cr) >= 0
2842 for (int i = 0; i < cr; i++)
2843 paste (cl[i], strlen (cl[i]));
2845 XFreeStringList (cl);
2848 paste ((char *)ct.value, ct.nitems); // paste raw
2853 if (selection_wait == Sel_normal)
2854 selection_wait = Sel_none;
2858 rxvt_term::incr_cb (ev::timer &w, int revents) NOTHROW
2860 selection_wait = Sel_none;
2865 rxvt_warn ("data loss: timeout on INCR selection paste, ignoring.\n");
2869 rxvt_term::selection_property (Window win, Atom prop) NOTHROW
2871 if (prop == None || selection_wait != Sel_incr)
2874 selection_paste (win, prop, true);
2877 /* ------------------------------------------------------------------------- */
2879 * Request the current selection:
2880 * Order: > internal selection if available
2881 * > PRIMARY, SECONDARY, CLIPBOARD if ownership is claimed (+)
2883 * (+) if ownership is claimed but property is empty, rxvt_selection_paste ()
2884 * will auto fallback to CUT_BUFFER0
2885 * EXT: button 2 release
2888 rxvt_term::selection_request (Time tm, int selnum) NOTHROW
2890 if (selection.text && selnum == Sel_Primary)
2892 /* internal selection */
2893 char *str = rxvt_wcstombs (selection.text, selection.len);
2894 paste (str, strlen (str));
2900 selection_request_time = tm;
2901 selection_wait = Sel_normal;
2903 #if X_HAVE_UTF8_STRING
2904 selection_type = Sel_UTF8String;
2905 if (selection_request_other (xa[XA_UTF8_STRING], selnum))
2908 selection_type = Sel_CompoundText;
2909 if (selection_request_other (xa[XA_COMPOUND_TEXT], selnum))
2914 selection_wait = Sel_none; /* don't loop in selection_paste () */
2915 selection_paste (display->root, XA_CUT_BUFFER0, false);
2919 rxvt_term::selection_request_other (Atom target, int selnum) NOTHROW
2923 selection_type |= selnum;
2925 if (selnum == Sel_Primary)
2927 else if (selnum == Sel_Secondary)
2930 sel = xa[XA_CLIPBOARD];
2932 if (XGetSelectionOwner (dpy, sel) != None)
2934 XConvertSelection (dpy, sel, target, xa[XA_VT_SELECTION],
2935 vt, selection_request_time);
2942 /* ------------------------------------------------------------------------- */
2944 * Clear all selected text
2945 * EXT: SelectionClear
2948 rxvt_term::selection_clear () NOTHROW
2951 free (selection.text);
2952 selection.text = NULL;
2956 if (display->selection_owner == this)
2957 display->selection_owner = 0;
2960 /* ------------------------------------------------------------------------- */
2962 * Copy a selection into the cut buffer
2963 * EXT: button 1 or 3 release
2966 rxvt_term::selection_make (Time tm)
2969 wchar_t *new_selection_text;
2972 switch (selection.op)
2974 case SELECTION_CONT:
2976 case SELECTION_INIT:
2979 case SELECTION_BEGIN:
2980 selection.op = SELECTION_DONE;
2986 selection.op = SELECTION_DONE;
2988 if (selection.clicks == 4)
2989 return; /* nothing selected, go away */
2991 if (HOOK_INVOKE ((this, HOOK_SEL_MAKE, DT_LONG, (long)tm, DT_END)))
2994 i = (selection.end.row - selection.beg.row + 1) * (ncol + 1);
2995 new_selection_text = (wchar_t *)rxvt_malloc ((i + 4) * sizeof (wchar_t));
3000 int col = selection.beg.col;
3001 int row = selection.beg.row;
3005 for (; row <= selection.end.row; row++, col = 0)
3010 col = selection.beg.col;
3015 end_col = ROW(row).l;
3019 if (row == selection.end.row
3024 min_it (end_col, selection.end.col);
3026 t = ROW(row).t + col;
3028 for (; col < end_col; col++)
3032 #if ENABLE_COMBINING
3033 else if (IS_COMPOSE (*t))
3035 int len = rxvt_composite.expand (*t, 0);
3043 new_selection_text = (wchar_t *)rxvt_realloc (new_selection_text, (i + 4) * sizeof (wchar_t));
3046 ofs += rxvt_composite.expand (*t++, new_selection_text + ofs);
3050 new_selection_text[ofs++] = *t++;
3057 && new_selection_text[ofs - 1] != C0_LF
3058 && unicode::is_space (new_selection_text[ofs - 1]))
3061 new_selection_text[ofs++] = C0_LF;
3065 if (!ROW(row).is_longer () && row != selection.end.row)
3066 new_selection_text[ofs++] = C0_LF;
3069 if (end_col != selection.end.col)
3070 new_selection_text[ofs++] = C0_LF;
3072 new_selection_text[ofs] = 0;
3076 free (new_selection_text);
3080 free (selection.text);
3082 // we usually allocate much more than necessary, so realloc it smaller again
3083 selection.len = ofs;
3084 selection.text = (wchar_t *)rxvt_realloc (new_selection_text, (ofs + 1) * sizeof (wchar_t));
3086 if (HOOK_INVOKE ((this, HOOK_SEL_GRAB, DT_LONG, (long)tm, DT_END)))
3089 selection_grab (tm);
3093 rxvt_term::selection_grab (Time tm) NOTHROW
3095 selection_time = tm;
3097 XSetSelectionOwner (dpy, XA_PRIMARY, vt, tm);
3098 if (XGetSelectionOwner (dpy, XA_PRIMARY) == vt)
3100 display->set_selection_owner (this);
3112 if (XwcTextListToTextProperty (dpy, &selection.text, 1, XStringStyle, &ct) >= 0)
3114 set_string_property (XA_CUT_BUFFER0, ct.value, ct.nitems);
3120 /* ------------------------------------------------------------------------- */
3122 * Mark or select text based upon number of clicks: 1, 2, or 3
3123 * EXT: button 1 press
3126 rxvt_term::selection_click (int clicks, int x, int y) NOTHROW
3128 clicks = ((clicks - 1) % 3) + 1;
3129 selection.clicks = clicks; /* save clicks so extend will work */
3131 if (clicks == 2 && !selection.rect
3132 && HOOK_INVOKE ((this, HOOK_SEL_EXTEND, DT_END)))
3134 MEvent.clicks = 1; // what a mess
3135 selection.screen = current_screen;
3136 selection.op = SELECTION_CONT;
3140 selection_start_colrow (Pixel2Col (x), Pixel2Row (y));
3142 if (clicks == 2 || clicks == 3)
3143 selection_extend_colrow (selection.mark.col,
3144 selection.mark.row - view_start,
3146 1, /* button press */
3147 0); /* click change */
3150 /* ------------------------------------------------------------------------- */
3152 * Mark a selection at the specified col/row
3155 rxvt_term::selection_start_colrow (int col, int row) NOTHROW
3159 selection.mark.row = row + view_start;
3160 selection.mark.col = col;
3162 selection.mark.row = clamp (selection.mark.row, top_row, nrow - 1);
3163 selection.mark.col = clamp (selection.mark.col, 0, ncol - 1);
3165 while (selection.mark.col > 0
3166 && ROW(selection.mark.row).t[selection.mark.col] == NOCHAR)
3167 --selection.mark.col;
3171 /* clear the old selection */
3172 selection.beg.row = selection.end.row = selection.mark.row;
3173 selection.beg.col = selection.end.col = selection.mark.col;
3176 selection.op = SELECTION_INIT;
3177 selection.screen = current_screen;
3180 /* ------------------------------------------------------------------------- */
3182 * Word select: select text for 2 clicks
3183 * We now only find out the boundary in one direction
3186 /* what do we want: spaces/tabs are delimiters or cutchars or non-cutchars */
3187 #define DELIMIT_TEXT(x) \
3188 (unicode::is_space (x) ? 2 : (x) <= 0xff && !!strchr (rs[Rs_cutchars], (x)))
3189 #define DELIMIT_REND(x) 1
3192 rxvt_term::selection_delimit_word (enum page_dirn dirn, const row_col_t *mark, row_col_t *ret) NOTHROW
3194 int col, row, dirnadd, tcol, trow, w1, w2;
3201 bound.row = top_row - 1;
3208 bound.col = ncol - 1;
3213 col = max (mark->col, 0);
3215 /* find the edge of a word */
3216 stp = ROW(row).t + col; w1 = DELIMIT_TEXT (*stp);
3217 srp = ROW(row).r + col; w2 = DELIMIT_REND (*srp);
3221 for (; col != bound.col; col += dirnadd)
3229 if (DELIMIT_TEXT (*stp) != w1)
3231 if (DELIMIT_REND (*srp) != w2)
3235 if ((col == bound.col) && (row != bound.row))
3237 if (ROW(row - (dirn == UP ? 1 : 0)).is_longer ())
3239 trow = row + dirnadd;
3240 tcol = dirn == UP ? ncol - 1 : 0;
3245 stp = ROW(trow).t + tcol;
3246 srp = ROW(trow).r + tcol;
3248 if (DELIMIT_TEXT (*stp) != w1 || DELIMIT_REND (*srp) != w2)
3260 col++; /* put us on one past the end */
3262 /* Poke the values back in */
3267 /* ------------------------------------------------------------------------- */
3269 * Extend the selection to the specified x/y pixel location
3270 * EXT: button 3 press; button 1 or 3 drag
3271 * flag == 0 ==> button 1
3272 * flag == 1 ==> button 3 press
3273 * flag == 2 ==> button 3 motion
3276 rxvt_term::selection_extend (int x, int y, int flag) NOTHROW
3278 int col = clamp (Pixel2Col (x), 0, ncol);
3279 int row = clamp (Pixel2Row (y), 0, nrow - 1);
3282 * If we're selecting characters (single click) then we must check first
3283 * if we are at the same place as the original mark. If we are then
3284 * select nothing. Otherwise, if we're to the right of the mark, you have to
3285 * be _past_ a character for it to be selected.
3287 if (((selection.clicks % 3) == 1) && !flag
3288 && (col == selection.mark.col
3289 && (row == selection.mark.row - view_start)))
3291 /* select nothing */
3292 selection.beg.row = selection.end.row = 0;
3293 selection.beg.col = selection.end.col = 0;
3294 selection.clicks = 4;
3299 if (selection.clicks == 4)
3300 selection.clicks = 1;
3302 selection_extend_colrow (col, row, !!flag, /* ? button 3 */
3303 flag == 1 ? 1 : 0, /* ? button press */
3304 0); /* no click change */
3307 /* ------------------------------------------------------------------------- */
3309 * Extend the selection to the specified col/row
3312 rxvt_term::selection_extend_colrow (int32_t col, int32_t row, int button3, int buttonpress, int clickchange) NOTHROW
3321 switch (selection.op)
3323 case SELECTION_INIT:
3325 selection.op = SELECTION_BEGIN;
3327 case SELECTION_BEGIN:
3328 if (row != selection.mark.row || col != selection.mark.col
3329 || (!button3 && buttonpress))
3330 selection.op = SELECTION_CONT;
3332 case SELECTION_DONE:
3333 selection.op = SELECTION_CONT;
3335 case SELECTION_CONT:
3337 case SELECTION_CLEAR:
3338 selection_start_colrow (col, row);
3344 if (selection.beg.col == selection.end.col
3345 && selection.beg.col != selection.mark.col
3346 && selection.beg.row == selection.end.row
3347 && selection.beg.row != selection.mark.row)
3349 selection.beg.col = selection.end.col = selection.mark.col;
3350 selection.beg.row = selection.end.row = selection.mark.row;
3354 pos.row = view_start + row;
3357 * This is mainly xterm style selection with a couple of differences, mainly
3358 * in the way button3 drag extension works.
3359 * We're either doing: button1 drag; button3 press; or button3 drag
3360 * a) button1 drag : select around a midpoint/word/line - that point/word/line
3361 * is always at the left/right edge of the selection.
3362 * b) button3 press: extend/contract character/word/line at whichever edge of
3363 * the selection we are closest to.
3364 * c) button3 drag : extend/contract character/word/line - we select around
3365 * a point/word/line which is either the start or end of the selection
3366 * and it was decided by whichever point/word/line was `fixed' at the
3367 * time of the most recent button3 press
3369 if (button3 && buttonpress)
3373 * first determine which edge of the selection we are closest to
3375 if (ROWCOL_IS_BEFORE (pos, selection.beg)
3376 || (!ROWCOL_IS_AFTER (pos, selection.end)
3377 && (((pos.col - selection.beg.col)
3378 + ((pos.row - selection.beg.row) * ncol))
3379 < ((selection.end.col - pos.col)
3380 + ((selection.end.row - pos.row) * ncol)))))
3383 if (closeto == LEFT)
3385 selection.beg.row = pos.row;
3386 selection.beg.col = pos.col;
3387 selection.mark.row = selection.end.row;
3388 selection.mark.col = selection.end.col - (selection.clicks == 2);
3392 selection.end.row = pos.row;
3393 selection.end.col = pos.col;
3394 selection.mark.row = selection.beg.row;
3395 selection.mark.col = selection.beg.col;
3400 /* button1 drag or button3 drag */
3401 if (ROWCOL_IS_AFTER (selection.mark, pos))
3403 if (selection.mark.row == selection.end.row
3404 && selection.mark.col == selection.end.col
3406 && selection.clicks == 2)
3407 selection.mark.col--;
3409 selection.beg.row = pos.row;
3410 selection.beg.col = pos.col;
3411 selection.end.row = selection.mark.row;
3412 selection.end.col = selection.mark.col + (selection.clicks == 2);
3416 selection.beg.row = selection.mark.row;
3417 selection.beg.col = selection.mark.col;
3418 selection.end.row = pos.row;
3419 selection.end.col = pos.col;
3423 if (selection.clicks == 1)
3425 if (selection.beg.col > ROW(selection.beg.row).l //TODO//FIXME//LEN
3426 && !ROW(selection.beg.row).is_longer ()
3431 selection.beg.col = ncol;
3434 selection.end.col > ROW(selection.end.row).l //TODO//FIXME//LEN
3435 && !ROW(selection.end.row).is_longer ()
3440 selection.end.col = ncol;
3442 else if (selection.clicks == 2)
3444 if (ROWCOL_IS_AFTER (selection.end, selection.beg))
3445 selection.end.col--;
3447 selection_delimit_word (UP, &selection.beg, &selection.beg);
3448 selection_delimit_word (DN, &selection.end, &selection.end);
3450 else if (selection.clicks == 3)
3453 if (option (Opt_tripleclickwords))
3455 selection_delimit_word (UP, &selection.beg, &selection.beg);
3457 for (int end_row = selection.mark.row; end_row < nrow; end_row++)
3459 if (!ROW(end_row).is_longer ())
3461 selection.end.row = end_row;
3462 selection.end.col = ROW(end_row).l;
3463 # if !ENABLE_MINIMAL
3464 selection_remove_trailing_spaces ();
3473 if (ROWCOL_IS_AFTER (selection.mark, selection.beg))
3474 selection.mark.col++;
3476 selection.beg.col = 0;
3477 selection.end.col = ncol;
3479 // select a complete logical line
3480 while (selection.beg.row > -saveLines
3481 && ROW(selection.beg.row - 1).is_longer ())
3482 selection.beg.row--;
3484 while (selection.end.row < nrow
3485 && ROW(selection.end.row).is_longer ())
3486 selection.end.row++;
3490 if (button3 && buttonpress)
3492 /* mark may need to be changed */
3493 if (closeto == LEFT)
3495 selection.mark.row = selection.end.row;
3496 selection.mark.col = selection.end.col - (selection.clicks == 2);
3500 selection.mark.row = selection.beg.row;
3501 selection.mark.col = selection.beg.col;
3506 if (selection.rect && selection.beg.col > selection.end.col)
3507 ::swap (selection.beg.col, selection.end.col);
3513 rxvt_term::selection_remove_trailing_spaces () NOTHROW
3515 int32_t end_col, end_row;
3518 end_col = selection.end.col;
3519 end_row = selection.end.row;
3521 for (; end_row >= selection.beg.row; )
3523 stp = ROW(end_row).t;
3525 while (--end_col >= 0)
3527 if (stp[end_col] != NOCHAR
3528 && !unicode::is_space (stp[end_col]))
3533 || !ROW(end_row - 1).is_longer ())
3535 selection.end.col = end_col + 1;
3536 selection.end.row = end_row;
3544 if (selection.mark.row > selection.end.row)
3546 selection.mark.row = selection.end.row;
3547 selection.mark.col = selection.end.col;
3549 else if (selection.mark.row == selection.end.row
3550 && selection.mark.col > selection.end.col)
3551 selection.mark.col = selection.end.col;
3555 /* ------------------------------------------------------------------------- */
3557 * Double click on button 3 when already selected
3558 * EXT: button 3 double click
3561 rxvt_term::selection_rotate (int x, int y) NOTHROW
3563 selection.clicks = selection.clicks % 3 + 1;
3564 selection_extend_colrow (Pixel2Col (x), Pixel2Row (y), 1, 0, 1);
3567 /* ------------------------------------------------------------------------- */
3569 * Respond to a request for our current selection
3570 * EXT: SelectionRequest
3573 rxvt_term::selection_send (const XSelectionRequestEvent &rq) NOTHROW
3577 ev.type = SelectionNotify;
3579 ev.display = rq.display;
3580 ev.requestor = rq.requestor;
3581 ev.selection = rq.selection;
3582 ev.target = rq.target;
3585 if (rq.target == xa[XA_TARGETS])
3587 Atom target_list[6];
3588 Atom *target = target_list;
3590 *target++ = xa[XA_TARGETS];
3591 *target++ = xa[XA_TIMESTAMP];
3592 *target++ = XA_STRING;
3593 *target++ = xa[XA_TEXT];
3594 *target++ = xa[XA_COMPOUND_TEXT];
3595 #if X_HAVE_UTF8_STRING
3596 *target++ = xa[XA_UTF8_STRING];
3599 XChangeProperty (dpy, rq.requestor, rq.property, XA_ATOM,
3600 32, PropModeReplace,
3601 (unsigned char *)target_list, target - target_list);
3602 ev.property = rq.property;
3605 else if (rq.target == xa[XA_MULTIPLE])
3607 /* TODO: Handle MULTIPLE */
3610 else if (rq.target == xa[XA_TIMESTAMP] && selection.text)
3612 XChangeProperty (dpy, rq.requestor, rq.property, rq.target,
3613 32, PropModeReplace, (unsigned char *)&selection_time, 1);
3614 ev.property = rq.property;
3616 else if (rq.target == XA_STRING
3617 || rq.target == xa[XA_TEXT]
3618 || rq.target == xa[XA_COMPOUND_TEXT]
3619 || rq.target == xa[XA_UTF8_STRING]
3623 Atom target = rq.target;
3628 enc_string = XStringStyle,
3629 enc_text = XStdICCTextStyle,
3630 enc_compound_text = XCompoundTextStyle,
3631 #ifdef X_HAVE_UTF8_STRING
3632 enc_utf8 = XUTF8StringStyle,
3638 if (target == XA_STRING)
3639 // we actually don't do XA_STRING, but who cares, as i18n clients
3640 // will ask for another format anyways.
3642 else if (target == xa[XA_TEXT])
3644 else if (target == xa[XA_COMPOUND_TEXT])
3645 style = enc_compound_text;
3647 else if (target == xa[XA_UTF8_STRING])
3652 target = xa[XA_COMPOUND_TEXT];
3653 style = enc_compound_text;
3658 cl = selection.text;
3659 selectlen = selection.len;
3668 // xlib is horribly broken with respect to UTF8_STRING, and nobody cares to fix it
3669 // so recode it manually
3670 if (style == enc_utf8)
3673 ct.encoding = target;
3675 ct.value = (unsigned char *)rxvt_wcstoutf8 (cl, selectlen);
3676 ct.nitems = strlen ((char *)ct.value);
3680 if (XwcTextListToTextProperty (dpy, &cl, 1, (XICCEncodingStyle) style, &ct) >= 0)
3684 /* if we failed to convert then send it raw */
3685 ct.value = (unsigned char *)cl;
3686 ct.nitems = selectlen;
3687 ct.encoding = target;
3690 XChangeProperty (dpy, rq.requestor, rq.property,
3691 ct.encoding, 8, PropModeReplace,
3692 ct.value, (int)ct.nitems);
3693 ev.property = rq.property;
3699 XSendEvent (dpy, rq.requestor, False, 0L, (XEvent *)&ev);
3702 /* ------------------------------------------------------------------------- */
3705 rxvt_term::im_set_position (XPoint &pos) NOTHROW
3707 XWindowAttributes xwa;
3709 XGetWindowAttributes (dpy, vt, &xwa);
3711 pos.x = xwa.x + Col2Pixel (screen.cur.col);
3712 pos.y = xwa.y + Height2Pixel (screen.cur.row) + fbase;
3718 rxvt_term::scr_overlay_new (int x, int y, int w, int h) NOTHROW
3720 if (nrow < 1 || ncol < 1)
3727 if (x < 0) x = ncol - w;
3728 if (y < 0) y = nrow - h;
3730 // make space for border
3731 w += 2; min_it (w, ncol);
3732 h += 2; min_it (h, nrow);
3734 x -= 1; clamp_it (x, 0, ncol - w);
3735 y -= 1; clamp_it (y, 0, nrow - h);
3740 ov.text = new text_t *[h];
3741 ov.rend = new rend_t *[h];
3743 for (y = 0; y < h; y++)
3745 text_t *tp = ov.text[y] = new text_t[w];
3746 rend_t *rp = ov.rend[y] = new rend_t[w];
3749 rend_t r = OVERLAY_RSTYLE;
3752 t0 = 0x2554, t1 = 0x2550, t2 = 0x2557;
3754 t0 = 0x2551, t1 = 0x0020, t2 = 0x2551;
3756 t0 = 0x255a, t1 = 0x2550, t2 = 0x255d;
3761 for (x = w - 2; x > 0; --x)
3773 rxvt_term::scr_overlay_off () NOTHROW
3780 for (int y = 0; y < ov.h; y++)
3782 delete [] ov.text[y];
3783 delete [] ov.rend[y];
3786 delete [] ov.text; ov.text = 0;
3787 delete [] ov.rend; ov.rend = 0;
3791 rxvt_term::scr_overlay_set (int x, int y, text_t text, rend_t rend) NOTHROW
3793 if (!ov.text || x >= ov.w - 2 || y >= ov.h - 2)
3798 ov.text[y][x] = text;
3799 ov.rend[y][x] = rend;
3803 rxvt_term::scr_overlay_set (int x, int y, const char *s) NOTHROW
3806 scr_overlay_set (x++, y, *s++);
3810 rxvt_term::scr_overlay_set (int x, int y, const wchar_t *s) NOTHROW
3815 int width = WCWIDTH (t);
3819 scr_overlay_set (x++, y, t);
3826 rxvt_term::scr_swap_overlay () NOTHROW
3831 // hide cursor if it is within the overlay area
3832 if (IN_RANGE_EXC (screen.cur.col - ov.x, 0, ov.w)
3833 && IN_RANGE_EXC (screen.cur.row - ov.y, 0, ov.h))
3834 screen.flags &= ~Screen_VisibleCursor;
3836 // swap screen mem with overlay
3837 for (int y = ov.h; y--; )
3839 text_t *t1 = ov.text[y];
3840 rend_t *r1 = ov.rend[y];
3842 text_t *t2 = ROW(y + ov.y + view_start).t + ov.x;
3843 rend_t *r2 = ROW(y + ov.y + view_start).r + ov.x;
3845 for (int x = ov.w; x--; )
3847 text_t t = *t1; *t1++ = *t2; *t2++ = t;
3848 rend_t r = *r1; *r1++ = *r2; *r2++ = SET_FONT (r, FONTSET (r)->find_font (t));
3854 /* ------------------------------------------------------------------------- */