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);
292 assert (old_buf [MOD (p, prev_total_rows)].t);
295 int llen = old_buf [MOD (p, prev_total_rows)].l;
297 while (p != pend && old_buf [MOD (p - 1, prev_total_rows)].is_longer ())
299 p = MOD (p - 1, prev_total_rows);
305 int qlines = max (0, (llen - 1) / ncol) + 1;
307 // drop partial lines completely
316 // re-assemble the full line by destination lines
317 for (int qrow = q; qlines--; qrow++)
319 qline = row_buf + qrow;
322 qline->is_longer (1);
326 // see below for cursor adjustment rationale
328 screen.cur.row = q - (total_rows - nrow);
330 // fill a single destination line
331 while (lofs < llen && qcol < ncol)
333 int prow = lofs / prev_ncol;
334 int pcol = lofs % prev_ncol;
336 prow = MOD (p + prow, prev_total_rows);
338 // we only adjust the cursor _row_ and put it into
339 // the topmost line of "long line" it was in, as
340 // this seems to upset applications/shells/readline
342 if (prow == ocur.row)
343 screen.cur.row = q - (total_rows - nrow);
345 line_t &pline = old_buf [prow];
347 int len = min (min (prev_ncol - pcol, ncol - qcol), llen - lofs);
349 memcpy (qline->t + qcol, pline.t + pcol, len * sizeof (text_t));
350 memcpy (qline->r + qcol, pline.r + pcol, len * sizeof (rend_t));
357 qline->l = llen ? MOD (llen - 1, ncol) + 1 : 0;
358 qline->is_longer (0);
359 scr_blank_line (*qline, qline->l, ncol - qline->l, DEFAULT_RSTYLE);
361 while (p != pend && q > 0);
363 term_start = total_rows - nrow;
364 top_row = q - term_start;
366 // make sure all terminal lines exist
368 scr_blank_screen_mem (ROW (--top_row), DEFAULT_RSTYLE);
372 // if no scrollback exists (yet), wing, instead of wrap
374 for (int row = min (nrow, prev_nrow); row--; )
376 line_t &pline = old_buf [MOD (term_start + row, prev_total_rows)];
377 line_t &qline = row_buf [row];
383 for (int row = prev_nrow; row < nrow; row++)
385 row_buf [row].clear (); scr_blank_screen_mem (row_buf [row], DEFAULT_RSTYLE);
395 clamp_it (screen.cur.row, 0, nrow - 1);
396 clamp_it (screen.cur.col, 0, ncol - 1);
400 tabs = (char *)rxvt_malloc (ncol);
402 for (int col = ncol; --col; )
403 tabs [col] = col % TABSIZE == 0;
405 CLEAR_ALL_SELECTION ();
412 HOOK_INVOKE ((this, HOOK_RESET, DT_END));
415 /* ------------------------------------------------------------------------- */
417 * Free everything. That way malloc debugging can find leakage.
420 rxvt_term::scr_release () NOTHROW
424 delete talloc; talloc = 0;
425 delete ralloc; ralloc = 0;
430 row_buf = 0; // signal that we freed all the arrays above
437 /* ------------------------------------------------------------------------- */
442 rxvt_term::scr_poweron ()
445 prev_nrow = prev_ncol = 0;
455 rxvt_term::scr_soft_reset ()
457 /* only affects modes, nothing drastic such as clearing the screen */
462 if (current_screen != PRIMARY)
465 scr_scroll_region (0, MAX_ROWS - 1);
466 scr_rendition (0, ~RS_None);
470 /* ------------------------------------------------------------------------- *
471 * PROCESS SCREEN COMMANDS *
472 * ------------------------------------------------------------------------- */
474 * Save and Restore cursor
475 * XTERM_SEQ: Save cursor : ESC 7
476 * XTERM_SEQ: Restore cursor: ESC 8
479 rxvt_term::scr_cursor (cursor_mode mode) NOTHROW
483 #if NSCREENS && !defined(NO_SECONDARY_SCREEN_CURSOR)
484 if (current_screen == SECONDARY)
493 s->s_cur.row = screen.cur.row;
494 s->s_cur.col = screen.cur.col;
495 s->s_rstyle = rstyle;
496 s->s_charset = screen.charset;
497 s->s_charset_char = charsets[screen.charset];
502 screen.cur.row = s->s_cur.row;
503 screen.cur.col = s->s_cur.col;
504 screen.flags &= ~Screen_WrapNext;
505 rstyle = s->s_rstyle;
506 screen.charset = s->s_charset;
507 charsets[screen.charset] = s->s_charset_char;
512 /* boundary check in case screen size changed between SAVE and RESTORE */
513 min_it (s->cur.row, nrow - 1);
514 min_it (s->cur.col, ncol - 1);
516 assert (s->cur.row >= 0);
517 assert (s->cur.col >= 0);
522 rxvt_term::scr_swap_screen ()
524 if (!option (Opt_secondaryScreen))
527 for (int i = prev_nrow; i--; )
528 ::swap (ROW(i), swap_buf [i]);
530 ::swap (screen.cur, swap.cur);
532 screen.cur.row = clamp (screen.cur.row, 0, prev_nrow - 1);
533 screen.cur.col = clamp (screen.cur.col, 0, prev_ncol - 1);
536 /* ------------------------------------------------------------------------- */
538 * Swap between primary and secondary screens
539 * XTERM_SEQ: Primary screen : ESC [ ? 4 7 h
540 * XTERM_SEQ: Secondary screen: ESC [ ? 4 7 l
543 rxvt_term::scr_change_screen (int scrn)
545 if (scrn == current_screen)
551 selection_check (2); /* check for boundary cross */
553 int i = current_screen; current_screen = scrn; scrn = i;
556 if (option (Opt_secondaryScreen))
562 ::swap (screen.charset, swap.charset);
563 ::swap (screen.flags, swap.flags);
564 screen.flags |= Screen_VisibleCursor;
565 swap.flags |= Screen_VisibleCursor;
569 if (option (Opt_secondaryScroll))
570 scr_scroll_text (0, prev_nrow - 1, prev_nrow);
573 // clear WrapNext indicator, solidifying position on next line
575 rxvt_term::scr_do_wrap () NOTHROW
577 if (!(screen.flags & Screen_WrapNext))
580 screen.flags &= ~Screen_WrapNext;
584 if (screen.cur.row == screen.bscroll)
585 scr_scroll_text (screen.tscroll, screen.bscroll, 1);
586 else if (screen.cur.row < nrow - 1)
590 /* ------------------------------------------------------------------------- */
592 * Change the colour for following text
595 rxvt_term::scr_color (unsigned int color, int fgbg) NOTHROW
597 if (!IN_RANGE_INC (color, minCOLOR, maxTermCOLOR))
600 if (fgbg == Color_fg)
601 rstyle = SET_FGCOLOR (rstyle, color);
603 rstyle = SET_BGCOLOR (rstyle, color);
606 /* ------------------------------------------------------------------------- */
608 * Change the rendition style for following text
611 rxvt_term::scr_rendition (int set, int style) NOTHROW
615 else if (style == ~RS_None)
616 rstyle = DEFAULT_RSTYLE;
621 /* ------------------------------------------------------------------------- */
623 * Scroll text between <row1> and <row2> inclusive, by <count> lines
624 * count positive ==> scroll up
625 * count negative ==> scroll down
628 rxvt_term::scr_scroll_text (int row1, int row2, int count) NOTHROW
630 if (count == 0 || (row1 > row2))
638 && (current_screen == PRIMARY || option (Opt_secondaryScroll)))
640 top_row = max (top_row - count, -saveLines);
642 // scroll everything up 'count' lines
643 term_start = (term_start + count) % total_rows;
645 // sever bottommost line
647 line_t &l = ROW(row2 - count);
652 // erase newly scrolled-in lines
653 for (int i = count; i--; )
655 line_t &l = ROW(nrow - 1 - i);
657 // optimize if already cleared, can be significant on slow machines
658 // could be rolled into scr_blank_screen_mem
659 if (l.r && l.l < ncol - 1 && !((l.r[l.l + 1] ^ rstyle) & (RS_fgMask | RS_bgMask)))
661 scr_blank_line (l, 0, l.l, rstyle);
666 scr_blank_screen_mem (l, rstyle);
669 // now copy lines below the scroll region bottom to the
670 // bottom of the screen again, so they look as if they
672 for (int i = nrow; --i > row2; )
674 line_t &l1 = ROW(i - count);
681 // move and/or clear selection, if any
682 if (selection.op && current_screen == selection.screen)
684 selection.beg.row -= count;
685 selection.end.row -= count;
686 selection.mark.row -= count;
688 if (selection.beg.row < top_row
689 || selection.end.row < top_row
690 || selection.mark.row < top_row)
692 CLEAR_ALL_SELECTION ();
693 selection.op = SELECTION_CLEAR;
697 // finally move the view window, if desired
698 if (option (Opt_scrollWithBuffer)
700 && view_start != -saveLines)
701 scr_page (UP, count);
703 if (SHOULD_INVOKE (HOOK_SCROLL_BACK))
704 HOOK_INVOKE ((this, HOOK_SCROLL_BACK, DT_INT, count, DT_INT, top_row, DT_END));
708 if (selection.op && current_screen == selection.screen)
710 if ((selection.beg.row < row1 && selection.end.row > row1)
711 || (selection.beg.row < row2 && selection.end.row > row2)
712 || (selection.beg.row - count < row1 && selection.beg.row >= row1)
713 || (selection.beg.row - count > row2 && selection.beg.row <= row2)
714 || (selection.end.row - count < row1 && selection.end.row >= row1)
715 || (selection.end.row - count > row2 && selection.end.row <= row2))
717 CLEAR_ALL_SELECTION ();
718 selection.op = SELECTION_CLEAR;
720 else if (selection.end.row >= row1 && selection.end.row <= row2)
722 /* move selected region too */
723 selection.beg.row -= count;
724 selection.end.row -= count;
725 selection.mark.row -= count;
731 // use a simple and robust scrolling algorithm, this
732 // part of scr_scroll_text is not time-critical.
734 int rows = row2 - row1 + 1;
736 min_it (count, rows);
738 line_t *temp_buf = row_buf + total_rows;
740 for (int row = 0; row < rows; row++)
742 temp_buf [row] = ROW(row1 + (row + count + rows) % rows);
744 if (!IN_RANGE_EXC (row + count, 0, rows))
745 scr_blank_screen_mem (temp_buf [row], rstyle);
748 for (int row = 0; row < rows; row++)
749 ROW(row1 + row) = temp_buf [row];
755 /* ------------------------------------------------------------------------- */
757 * Add text given in <str> of length <len> to screen struct
760 rxvt_term::scr_add_lines (const wchar_t *str, int len, int minlines) NOTHROW
762 if (len <= 0) /* sanity */
765 unsigned char checksel;
767 int ncol = this->ncol;
768 const wchar_t *strend = str + len;
775 minlines += screen.cur.row - screen.bscroll;
776 min_it (minlines, screen.cur.row - top_row);
779 && screen.tscroll == 0
780 && screen.bscroll == nrow - 1)
782 /* _at least_ this many lines need to be scrolled */
783 scr_scroll_text (screen.tscroll, screen.bscroll, minlines);
784 screen.cur.row -= minlines;
789 assert (screen.cur.col < ncol);
790 assert (screen.cur.row < nrow
791 && screen.cur.row >= top_row);
793 int row = screen.cur.row;
795 checksel = selection.op && current_screen == selection.screen ? 1 : 0;
797 line_t *line = &ROW(row);
801 c = (unicode_t)*str++; // convert to rxvt-unicodes representation
803 if (expect_false (c < 0x20))
806 max_it (line->l, screen.cur.col);
808 screen.flags &= ~Screen_WrapNext;
810 if (screen.cur.row == screen.bscroll)
811 scr_scroll_text (screen.tscroll, screen.bscroll, 1);
812 else if (screen.cur.row < (nrow - 1))
813 row = ++screen.cur.row;
815 line = &ROW(row); /* _must_ refresh */
820 max_it (line->l, screen.cur.col);
822 screen.flags &= ~Screen_WrapNext;
833 checksel /* see if we're writing within selection */
834 && !ROWCOL_IS_BEFORE (screen.cur, selection.beg)
835 && ROWCOL_IS_BEFORE (screen.cur, selection.end)
840 * If we wrote anywhere in the selected area, kill the selection
841 * XXX: should we kill the mark too? Possibly, but maybe that
842 * should be a similar check.
847 if (expect_false (screen.flags & Screen_WrapNext))
854 row = screen.cur.row;
855 line = &ROW(row); /* _must_ refresh */
858 // some utf-8 decoders "decode" surrogate characters: let's fix this.
859 if (expect_false (IN_RANGE_INC (c, 0xd800, 0xdfff)))
862 // rely on wcwidth to tell us the character width, do wcwidth before
863 // further replacements, as wcwidth might return -1 for the line
864 // drawing characters below as they might be invalid in the current
866 int width = WCWIDTH (c);
868 if (expect_false (charsets [screen.charset] == '0')) // DEC SPECIAL
870 // vt100 special graphics and line drawing
871 // 5f-7e standard vt100
872 // 40-5e rxvt extension for extra curses acs chars
873 static uint16_t vt100_0[62] = { // 41 .. 7e
874 0x2191, 0x2193, 0x2192, 0x2190, 0x2588, 0x259a, 0x2603, // 41-47 hi mr. snowman!
875 0, 0, 0, 0, 0, 0, 0, 0, // 48-4f
876 0, 0, 0, 0, 0, 0, 0, 0, // 50-57
877 0, 0, 0, 0, 0, 0, 0, 0x0020, // 58-5f
878 0x25c6, 0x2592, 0x2409, 0x240c, 0x240d, 0x240a, 0x00b0, 0x00b1, // 60-67
879 0x2424, 0x240b, 0x2518, 0x2510, 0x250c, 0x2514, 0x253c, 0x23ba, // 68-6f
880 0x23bb, 0x2500, 0x23bc, 0x23bd, 0x251c, 0x2524, 0x2534, 0x252c, // 70-77
881 0x2502, 0x2264, 0x2265, 0x03c0, 0x2260, 0x00a3, 0x00b7, // 78-7e
884 if (c >= 0x41 && c <= 0x7e && vt100_0[c - 0x41])
886 c = vt100_0[c - 0x41];
887 width = 1; // vt100 line drawing characters are always single-width
891 if (expect_false (screen.flags & Screen_Insert))
892 scr_insdel_chars (width, INSERT);
897 // trim characters we can't store directly :(
899 # if ENABLE_COMBINING
900 c = rxvt_composite.compose (c); // map to lower 16 bits
906 // nuke the character at this position, if required
908 line->t[screen.cur.col] == NOCHAR
909 || (screen.cur.col < ncol - 1
910 && line->t[screen.cur.col + 1] == NOCHAR)
912 scr_kill_char (*line, screen.cur.col);
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 (expect_false (screen.cur.col > ncol - width && ncol >= width))
919 // ... artificially enlargen the previous one
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 (expect_true (screen.cur.col < ncol - 1))
937 if (screen.flags & Screen_Autowrap)
938 screen.flags |= Screen_WrapNext;
944 while (expect_false (--width > 0));
946 // pad with spaces when overwriting wide character with smaller one
947 if (expect_false (!width))
951 for (int c = screen.cur.col; c < ncol && line->t[c] == NOCHAR; c++)
961 if (c != 0xfeff) // ignore BOM
963 // handle combining characters
964 // we just tag the accent on the previous on-screen character.
965 // this is arguably not correct, but also arguably not wrong.
966 // we don't handle double-width characters nicely yet.
971 if (screen.cur.col > 0)
974 tp = line->t + screen.cur.col - 1;
975 rp = line->r + screen.cur.col - 1;
977 else if (screen.cur.row > 0
978 && ROW(screen.cur.row - 1).is_longer ())
980 linep = &ROW(screen.cur.row - 1);
981 tp = line->t + ncol - 1;
982 rp = line->r + ncol - 1;
989 while (*tp == NOCHAR && tp > linep->t)
992 // first try to find a precomposed character
993 unicode_t n = rxvt_compose (*tp, c);
995 n = rxvt_composite.compose (*tp, c);
998 *rp = SET_FONT (*rp, FONTSET (*rp)->find_font (*tp));
1004 max_it (line->l, screen.cur.col);
1007 assert (screen.cur.row >= 0);
1011 /* ------------------------------------------------------------------------- */
1013 * Process Backspace. Move back the cursor back a position, wrap if have to
1017 rxvt_term::scr_backspace () NOTHROW
1019 if (screen.cur.col == 0)
1021 if (screen.cur.row > 0)
1023 #ifdef TERMCAP_HAS_BW
1024 screen.cur.col = ncol - 1;
1032 scr_gotorc (0, -1, RELATIVE);
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)
1192 /* relative origin mode */
1193 screen.cur.row = row + screen.tscroll;
1194 min_it (screen.cur.row, screen.bscroll);
1197 screen.cur.row = row;
1200 clamp_it (screen.cur.row, 0, nrow - 1);
1203 /* ------------------------------------------------------------------------- */
1205 * direction should be UP or DN
1208 rxvt_term::scr_index (enum page_dirn direction) NOTHROW
1215 dirn = ((direction == UP) ? 1 : -1);
1217 screen.flags &= ~Screen_WrapNext;
1219 if ((screen.cur.row == screen.bscroll && direction == UP)
1220 || (screen.cur.row == screen.tscroll && direction == DN))
1221 scr_scroll_text (screen.tscroll, screen.bscroll, dirn);
1223 screen.cur.row += dirn;
1225 clamp_it (screen.cur.row, 0, nrow - 1);
1226 selection_check (0);
1229 /* ------------------------------------------------------------------------- */
1231 * Erase part or whole of a line
1232 * XTERM_SEQ: Clear line to right: ESC [ 0 K
1233 * XTERM_SEQ: Clear line to left : ESC [ 1 K
1234 * XTERM_SEQ: Clear whole line : ESC [ 2 K
1235 * extension: clear to right unless wrapped: ESC [ 3 K
1238 rxvt_term::scr_erase_line (int mode) NOTHROW
1240 unsigned int col, num;
1245 selection_check (1);
1247 line_t &line = ROW(screen.cur.row);
1255 if (screen.flags & Screen_WrapNext)
1260 case 0: /* erase to end of line */
1261 col = screen.cur.col;
1263 min_it (line.l, col);
1265 if (ROWCOL_IN_ROW_AT_OR_AFTER (selection.beg, screen.cur)
1266 || ROWCOL_IN_ROW_AT_OR_AFTER (selection.end, screen.cur))
1270 case 1: /* erase to beginning of line */
1272 num = screen.cur.col + 1;
1274 if (ROWCOL_IN_ROW_AT_OR_BEFORE (selection.beg, screen.cur)
1275 || ROWCOL_IN_ROW_AT_OR_BEFORE (selection.end, screen.cur))
1279 case 2: /* erase whole line */
1283 if (selection.beg.row <= screen.cur.row
1284 && selection.end.row >= screen.cur.row)
1291 scr_blank_line (line, col, num, rstyle);
1294 /* ------------------------------------------------------------------------- */
1296 * Erase part of whole of the screen
1297 * XTERM_SEQ: Clear screen after cursor : ESC [ 0 J
1298 * XTERM_SEQ: Clear screen before cursor: ESC [ 1 J
1299 * XTERM_SEQ: Clear whole screen : ESC [ 2 J
1302 rxvt_term::scr_erase_screen (int mode) NOTHROW
1314 case 0: /* erase to end of screen */
1315 selection_check (1);
1317 row = screen.cur.row + 1; /* possible OOB */
1320 case 1: /* erase to beginning of screen */
1321 selection_check (3);
1324 num = screen.cur.row;
1326 case 2: /* erase whole screen */
1327 selection_check (3);
1335 if (selection.op && current_screen == selection.screen
1336 && ((selection.beg.row >= row && selection.beg.row <= row + num)
1337 || (selection.end.row >= row
1338 && selection.end.row <= row + num)))
1341 if (row >= nrow) /* Out Of Bounds */
1344 min_it (num, nrow - row);
1346 // TODO: the code below does not work when view_start != 0
1347 // the workaround is to disable the clear and use a normal refresh
1348 // when view_start != 0. mysterious.
1349 if (rstyle & (RS_RVid | RS_Uline))
1350 ren = (rend_t) ~RS_None;
1351 else if (GET_BASEBG (rstyle) == Color_bg)
1353 ren = DEFAULT_RSTYLE;
1355 if (mapped && !view_start)
1356 XClearArea (dpy, vt, 0,
1357 Row2Pixel (row - view_start), (unsigned int)width,
1358 (unsigned int)Height2Pixel (num), False);
1362 ren = rstyle & (RS_fgMask | RS_bgMask);
1364 if (mapped && !view_start)
1366 gcvalue.foreground = pix_colors[bgcolor_of (rstyle)];
1367 XChangeGC (dpy, gc, GCForeground, &gcvalue);
1368 XFillRectangle (dpy, vt, gc,
1369 0, Row2Pixel (row - view_start),
1370 (unsigned int)width,
1371 (unsigned int)Height2Pixel (num));
1372 gcvalue.foreground = pix_colors[Color_fg];
1373 XChangeGC (dpy, gc, GCForeground, &gcvalue);
1377 for (; num--; row++)
1379 scr_blank_screen_mem (ROW(row), rstyle);
1382 scr_blank_line (drawn_buf [row], 0, ncol, ren);
1388 rxvt_term::scr_erase_savelines () NOTHROW
1397 /* ------------------------------------------------------------------------- */
1399 * Fill the screen with `E's
1400 * XTERM_SEQ: Screen Alignment Test: ESC # 8
1403 rxvt_term::scr_E () NOTHROW
1411 selection_check (3);
1413 fs = SET_FONT (rstyle, FONTSET (rstyle)->find_font ('E'));
1414 for (int row = nrow; row--; )
1416 line_t &line = ROW(row);
1418 fill_text (line.t, 'E', ncol);
1419 rend_t *r1 = line.r;
1421 for (int j = ncol; j--; )
1429 /* ------------------------------------------------------------------------- */
1431 * Insert/Delete <count> lines
1434 rxvt_term::scr_insdel_lines (int count, int insdel) NOTHROW
1440 selection_check (1);
1442 if (screen.cur.row > screen.bscroll)
1445 end = screen.bscroll - screen.cur.row + 1;
1448 if (insdel == DELETE)
1450 else if (insdel == INSERT)
1456 scr_scroll_text (screen.cur.row, screen.bscroll, insdel * count);
1459 /* ------------------------------------------------------------------------- */
1461 * Insert/Delete <count> characters from the current position
1464 rxvt_term::scr_insdel_chars (int count, int insdel) NOTHROW
1474 selection_check (1);
1475 min_it (count, ncol - screen.cur.col);
1477 int row = screen.cur.row;
1479 line_t *line = &ROW(row);
1482 line->is_longer (0);
1484 // nuke wide spanning the start
1485 if (line->t[screen.cur.col] == NOCHAR)
1486 scr_kill_char (*line, screen.cur.col);
1491 line->l = min (line->l + count, ncol);
1493 if (line->t[screen.cur.col] == NOCHAR)
1494 scr_kill_char (*line, screen.cur.col);
1496 for (int col = ncol - 1; (col - count) >= screen.cur.col; col--)
1498 line->t[col] = line->t[col - count];
1499 line->r[col] = line->r[col - count];
1502 if (selection.op && current_screen == selection.screen
1503 && ROWCOL_IN_ROW_AT_OR_AFTER (selection.beg, screen.cur))
1505 if (selection.end.row != screen.cur.row
1506 || (selection.end.col + count >= ncol))
1510 /* shift selection */
1511 selection.beg.col += count;
1512 selection.mark.col += count; /* XXX: yes? */
1513 selection.end.col += count;
1517 scr_blank_line (*line, screen.cur.col, count, rstyle);
1521 screen.cur.col += count; /* don't worry if > ncol */
1522 selection_check (1);
1523 screen.cur.col -= count;
1525 // nuke wide char after the end
1526 if (screen.cur.col + count < ncol && line->t[screen.cur.col + count] == NOCHAR)
1527 scr_kill_char (*line, screen.cur.col + count);
1529 scr_blank_line (*line, screen.cur.col, count, rstyle);
1533 line->l = max (line->l - count, 0);
1535 // nuke wide char spanning the end
1536 if (screen.cur.col + count < ncol && line->t[screen.cur.col + count] == NOCHAR)
1537 scr_kill_char (*line, screen.cur.col + count);
1539 for (int col = screen.cur.col; (col + count) < ncol; col++)
1541 line->t[col] = line->t[col + count];
1542 line->r[col] = line->r[col + count];
1545 scr_blank_line (*line, ncol - count, count, rstyle);
1547 if (selection.op && current_screen == selection.screen
1548 && ROWCOL_IN_ROW_AT_OR_AFTER (selection.beg, screen.cur))
1550 if (selection.end.row != screen.cur.row
1551 || (screen.cur.col >= selection.beg.col - count)
1552 || selection.end.col >= ncol)
1556 /* shift selection */
1557 selection.beg.col -= count;
1558 selection.mark.col -= count; /* XXX: yes? */
1559 selection.end.col -= count;
1567 /* ------------------------------------------------------------------------- */
1569 * Set the scrolling region
1570 * XTERM_SEQ: Set region <top> - <bot> inclusive: ESC [ <top> ; <bot> r
1573 rxvt_term::scr_scroll_region (int top, int bot) NOTHROW
1576 min_it (bot, nrow - 1);
1581 screen.tscroll = top;
1582 screen.bscroll = bot;
1583 scr_gotorc (0, 0, 0);
1586 /* ------------------------------------------------------------------------- */
1588 * Make the cursor visible/invisible
1589 * XTERM_SEQ: Make cursor visible : ESC [ ? 25 h
1590 * XTERM_SEQ: Make cursor invisible: ESC [ ? 25 l
1593 rxvt_term::scr_cursor_visible (int mode) NOTHROW
1598 screen.flags |= Screen_VisibleCursor;
1600 screen.flags &= ~Screen_VisibleCursor;
1603 /* ------------------------------------------------------------------------- */
1605 * Set/unset automatic wrapping
1606 * XTERM_SEQ: Set Wraparound : ESC [ ? 7 h
1607 * XTERM_SEQ: Unset Wraparound: ESC [ ? 7 l
1610 rxvt_term::scr_autowrap (int mode) NOTHROW
1613 screen.flags |= Screen_Autowrap;
1615 screen.flags &= ~(Screen_Autowrap | Screen_WrapNext);
1618 /* ------------------------------------------------------------------------- */
1620 * Set/unset margin origin mode
1621 * Absolute mode: line numbers are counted relative to top margin of screen
1622 * and the cursor can be moved outside the scrolling region.
1623 * Relative mode: line numbers are relative to top margin of scrolling region
1624 * and the cursor cannot be moved outside.
1625 * XTERM_SEQ: Set Absolute: ESC [ ? 6 h
1626 * XTERM_SEQ: Set Relative: ESC [ ? 6 l
1629 rxvt_term::scr_relative_origin (int mode) NOTHROW
1632 screen.flags |= Screen_Relative;
1634 screen.flags &= ~Screen_Relative;
1636 scr_gotorc (0, 0, 0);
1639 /* ------------------------------------------------------------------------- */
1641 * Set insert/replace mode
1642 * XTERM_SEQ: Set Insert mode : ESC [ ? 4 h
1643 * XTERM_SEQ: Set Replace mode: ESC [ ? 4 l
1646 rxvt_term::scr_insert_mode (int mode) NOTHROW
1649 screen.flags |= Screen_Insert;
1651 screen.flags &= ~Screen_Insert;
1654 /* ------------------------------------------------------------------------- */
1657 * XTERM_SEQ: Set tab at current column : ESC H
1658 * XTERM_SEQ: Clear tab at current column: ESC [ 0 g
1659 * XTERM_SEQ: Clear all tabs : ESC [ 3 g
1662 rxvt_term::scr_set_tab (int mode) NOTHROW
1665 memset (tabs, 0, ncol);
1666 else if (screen.cur.col < ncol)
1667 tabs [screen.cur.col] = !!mode;
1670 /* ------------------------------------------------------------------------- */
1672 * Set reverse/normal video
1673 * XTERM_SEQ: Reverse video: ESC [ ? 5 h
1674 * XTERM_SEQ: Normal video : ESC [ ? 5 l
1677 rxvt_term::scr_rvideo_mode (bool on) NOTHROW
1685 if (rvideo_state != on)
1689 ::swap (pix_colors[Color_fg], pix_colors[Color_bg]);
1690 #ifdef HAVE_BG_PIXMAP
1691 if (bgPixmap.pixmap == None)
1693 XSetWindowBackground (dpy, vt, pix_colors[Color_bg]);
1696 gcvalue.foreground = pix_colors[Color_fg];
1697 gcvalue.background = pix_colors[Color_bg];
1698 XChangeGC (dpy, gc, GCBackground | GCForeground, &gcvalue);
1705 /* ------------------------------------------------------------------------- */
1707 * Report current cursor position
1708 * XTERM_SEQ: Report position: ESC [ 6 n
1711 rxvt_term::scr_report_position () NOTHROW
1713 tt_printf ("\033[%d;%dR", screen.cur.row + 1, screen.cur.col + 1);
1716 /* ------------------------------------------------------------------------- *
1718 * ------------------------------------------------------------------------- */
1724 rxvt_term::set_font_style () NOTHROW
1727 switch (charsets [screen.charset])
1729 case '0': /* DEC Special Character & Line Drawing Set */
1731 case 'A': /* United Kingdom (UK) */
1733 case 'B': /* United States (USASCII) */
1735 case '<': /* Multinational character set */
1737 case '5': /* Finnish character set */
1739 case 'C': /* Finnish character set */
1741 case 'K': /* German character set */
1747 /* ------------------------------------------------------------------------- */
1750 * XTERM_SEQ: Invoke G0 character set: CTRL-O
1751 * XTERM_SEQ: Invoke G1 character set: CTRL-N
1752 * XTERM_SEQ: Invoke G2 character set: ESC N
1753 * XTERM_SEQ: Invoke G3 character set: ESC O
1756 rxvt_term::scr_charset_choose (int set) NOTHROW
1758 screen.charset = set;
1762 /* ------------------------------------------------------------------------- */
1765 * XTERM_SEQ: Set G0 character set: ESC ( <C>
1766 * XTERM_SEQ: Set G1 character set: ESC ) <C>
1767 * XTERM_SEQ: Set G2 character set: ESC * <C>
1768 * XTERM_SEQ: Set G3 character set: ESC + <C>
1769 * See set_font_style for possible values for <C>
1772 rxvt_term::scr_charset_set (int set, unsigned int ch) NOTHROW
1774 charsets[set] = (unsigned char)ch;
1779 /* ------------------------------------------------------------------------- *
1780 * MAJOR SCREEN MANIPULATION *
1781 * ------------------------------------------------------------------------- */
1784 * refresh matching text.
1787 rxvt_term::scr_refresh_rend (rend_t mask, rend_t value) NOTHROW
1791 for (int i = 0; i < nrow; i++)
1793 rend_t *drp = drawn_buf[i].r;
1795 for (int col = 0; col < ncol; col++, drp++)
1796 if ((*drp & mask) == value)
1816 rxvt_term::scr_expose (int x, int y, int ewidth, int eheight, bool refresh) NOTHROW
1819 row_col_t rc[RC_COUNT];
1821 if (!drawn_buf) /* sanity check */
1824 #ifndef NO_SLOW_LINK_SUPPORT
1825 if (refresh_type == FAST_REFRESH && !display->is_local)
1833 rc[PART_BEG].col = Pixel2Col (x);
1834 rc[PART_BEG].row = Pixel2Row (y);
1836 rc[PART_END].col = Pixel2Width (x + ewidth + fwidth - 1);
1837 rc[PART_END].row = Pixel2Row (y + eheight + fheight - 1);
1840 for (i = PART_BEG; i < RC_COUNT; i++)
1842 min_it (rc[i].col, ncol - 1);
1843 min_it (rc[i].row, nrow - 1);
1845 // TODO: this line somehow causes segfault if scr_expose() is called just after resize
1846 for (i = rc[PART_BEG].row; i <= rc[PART_END].row; i++)
1847 fill_text (&drawn_buf[i].t[rc[PART_BEG].col], 0, rc[PART_END].col - rc[PART_BEG].col + 1);
1855 /* ------------------------------------------------------------------------- */
1857 * Refresh the entire screen
1860 rxvt_term::scr_touch (bool refresh) NOTHROW
1862 scr_expose (0, 0, width, height, refresh);
1865 /* ------------------------------------------------------------------------- */
1867 * Move the display so that the line represented by scrollbar value Y is at
1868 * the top of the screen
1871 rxvt_term::scr_move_to (int y, int len) NOTHROW
1873 scr_changeview ((top_row - nrow) * (len - y) / len + (nrow - 1));
1876 /* ------------------------------------------------------------------------- */
1878 * Page the screen up/down nlines
1879 * direction should be UP or DN
1882 rxvt_term::scr_page (enum page_dirn direction, int nlines) NOTHROW
1884 int new_view_start =
1885 direction == UP ? view_start - nlines
1886 : view_start + nlines;
1888 return scr_changeview (new_view_start);
1892 rxvt_term::scr_changeview (int new_view_start) NOTHROW
1894 clamp_it (new_view_start, top_row, 0);
1896 if (new_view_start == view_start)
1899 num_scr += new_view_start - view_start;
1900 view_start = new_view_start;
1903 HOOK_INVOKE ((this, HOOK_VIEW_CHANGE, DT_INT, view_start, DT_END));
1910 rxvt_term::bell_cb (ev::timer &w, int revents)
1912 rvideo_bell = false;
1913 scr_rvideo_mode (rvideo_mode);
1918 /* ------------------------------------------------------------------------- */
1920 rxvt_term::scr_bell () NOTHROW
1924 # ifndef NO_MAPALERT
1925 # ifdef MAPALERT_OPTION
1926 if (option (Opt_mapAlert))
1928 XMapWindow (dpy, parent[0]);
1932 if (option (Opt_urgentOnBell))
1936 if (option (Opt_visualBell))
1939 scr_rvideo_mode (rvideo_mode);
1942 bell_ev.start (VISUAL_BELL_DURATION);
1949 /* ------------------------------------------------------------------------- */
1952 rxvt_term::scr_printscreen (int fullhist) NOTHROW
1955 int nrows, row_start;
1956 FILE *fd = popen_printer ();
1963 nrows = nrow - top_row;
1964 row_start = top_row;
1969 row_start = view_start;
1974 for (int r1 = 0; r1 < nrows; r1++)
1976 text_t *tp = ROW(r1).t;
1977 int len = ROW(r1).l;
1979 for (int i = len >= 0 ? len : ncol - 1; i--; ) //TODO//FIXME//LEN
1981 char mb[MB_LEN_MAX];
1986 len = wctomb (mb, t);
1994 fwrite (mb, 1, len, fd);
2000 pclose_printer (fd);
2004 /* ------------------------------------------------------------------------- */
2006 * Refresh the screen
2007 * drawn_text/drawn_rend contain the screen information before the update.
2008 * screen.text/screen.rend contain what the screen will change to.
2011 rxvt_term::scr_refresh () NOTHROW
2013 int16_t col, row, /* column/row we're processing */
2014 ocrow; /* old cursor row */
2016 #ifndef NO_CURSORCOLOR
2017 rend_t cc1; /* store colours at cursor position (s) */
2019 rend_t *crp; // cursor rendition pointer
2020 rend_t ccol1, /* Cursor colour */
2021 ccol2; /* Cursor colour2 */
2023 want_refresh = 0; /* screen is current */
2025 if (refresh_type == NO_REFRESH || !mapped)
2033 unsigned int old_screen_flags = screen.flags;
2035 #ifdef HAVE_BG_PIXMAP
2036 have_bg = bgPixmap.pixmap != None;
2038 ocrow = oldcursor.row; /* is there an old outline cursor on screen? */
2041 * B: reverse any characters which are selected
2043 scr_reverse_selection ();
2045 HOOK_INVOKE ((this, HOOK_REFRESH_BEGIN, DT_END));
2047 scr_swap_overlay ();
2050 char showcursor = screen.flags & Screen_VisibleCursor;
2053 * C: set the cursor character (s)
2056 unsigned char setoldcursor;
2065 int col = screen.cur.col;
2067 while (col && ROW(screen.cur.row).t[col] == NOCHAR)
2070 crp = &ROW(screen.cur.row).r[col];
2072 #ifndef NO_CURSORCOLOR
2073 cc1 = *crp & (RS_fgMask | RS_bgMask);
2074 if (ISSET_PIXCOLOR (Color_cursor))
2075 ccol1 = Color_cursor;
2078 #ifdef CURSOR_COLOR_IS_RENDITION_COLOR
2079 ccol1 = fgcolor_of (rstyle);
2084 #ifndef NO_CURSORCOLOR
2085 if (ISSET_PIXCOLOR (Color_cursor2))
2086 ccol2 = Color_cursor2;
2089 #ifdef CURSOR_COLOR_IS_RENDITION_COLOR
2090 ccol2 = bgcolor_of (rstyle);
2095 if (showcursor && focus)
2097 if (option (Opt_cursorUnderline))
2102 *crp = SET_FGCOLOR (*crp, ccol1);
2103 *crp = SET_BGCOLOR (*crp, ccol2);
2108 /* make sure no outline cursor is left around */
2112 if (screen.cur.row - view_start != ocrow
2113 || screen.cur.col != oldcursor.col)
2116 && oldcursor.col < ncol)
2117 drawn_buf[ocrow].r[oldcursor.col] ^= (RS_RVid | RS_Uline);
2119 if (focus || !showcursor)
2130 if (screen.cur.row - view_start >= nrow)
2134 oldcursor.row = screen.cur.row - view_start;
2135 oldcursor.col = screen.cur.col;
2140 #ifndef NO_SLOW_LINK_SUPPORT
2142 * D: CopyArea pass - very useful for slower links
2143 * This has been deliberately kept simple.
2145 if (!display->is_local
2146 && refresh_type == FAST_REFRESH && num_scr_allow && num_scr
2147 && abs (num_scr) < nrow && !have_bg)
2153 dLocal (int, num_scr);
2157 row = i > 0 ? 0 : j - 1;
2159 for (; j-- >= 0; row += (i > 0 ? 1 : -1))
2161 if (row + i >= 0 && row + i < nrow && row + i != ocrow)
2163 line_t s = ROW(view_start + row);
2164 line_t d = drawn_buf[row];
2165 line_t d2 = drawn_buf[row + i];
2167 for (nits = 0, col = ncol; col--; )
2168 if (s.t[col] != d2.t[col] || s.r[col] != d2.r[col])
2170 else if (s.t[col] != d.t[col] || s.r[col] != d.r[col])
2173 if (nits > 8) /* XXX: arbitrary choice */
2175 for (col = ncol; col--; )
2191 /* also comes here at end if needed because of >= above */
2197 gcv.graphics_exposures = 1; XChangeGC (dpy, gc, GCGraphicsExposures, &gcv);
2198 XCopyArea (dpy, vt, vt,
2199 gc, 0, Row2Pixel (len + i),
2200 (unsigned int)this->width,
2201 (unsigned int)Height2Pixel (wlen - len + 1),
2202 0, Row2Pixel (len));
2203 gcv.graphics_exposures = 0; XChangeGC (dpy, gc, GCGraphicsExposures, &gcv);
2212 * E: main pass across every character
2214 for (row = 0; row < nrow; row++)
2216 text_t *stp = ROW(view_start + row).t;
2217 rend_t *srp = ROW(view_start + row).r;
2218 text_t *dtp = drawn_buf[row].t;
2219 rend_t *drp = drawn_buf[row].r;
2222 * E2: OK, now the real pass
2224 int ypixel = (int)Row2Pixel (row);
2226 for (col = 0; col < ncol; col++)
2228 /* compare new text with old - if exactly the same then continue */
2229 if (stp[col] == dtp[col] /* Must match characters to skip. */
2230 && (RS_SAME (srp[col], drp[col]) /* Either rendition the same or */
2231 || (stp[col] == ' ' /* space w/ no background change */
2232 && GET_BGATTR (srp[col]) == GET_BGATTR (drp[col]))))
2235 // redraw one or more characters
2237 // seek to the beginning of wide characters
2238 while (expect_false (stp[col] == NOCHAR && col > 0))
2241 rend_t rend = srp[col]; /* screen rendition (target rendtion) */
2242 text_t *text = stp + col;
2245 dtp[col] = stp[col];
2248 int xpixel = Col2Pixel (col);
2250 for (i = 0; ++col < ncol; )
2252 if (stp[col] == NOCHAR)
2254 dtp[col] = stp[col];
2255 drp[col] = srp[col];
2263 if (!RS_SAME (rend, srp[col]))
2268 if (stp[col] != dtp[col]
2269 || !RS_SAME (srp[col], drp[col]))
2271 if (have_bg && (i++ > count / 2))
2274 dtp[col] = stp[col];
2278 else if (have_bg || (stp[col] != ' ' && ++i >= 16))
2282 col--; /* went one too far. move back */
2283 count -= i; /* dump any matching trailing chars */
2285 // sometimes we optimize away the trailing NOCHAR's, add them back
2286 while (expect_false (i && text[count] == NOCHAR))
2290 * Determine the attributes for the string
2292 int fore = fgcolor_of (rend); // desired foreground
2293 int back = bgcolor_of (rend); // desired background
2295 // only do special processing if any attributes are set, which is unlikely
2296 if (expect_false (rend & (RS_Bold | RS_Italic | RS_Uline | RS_RVid | RS_Blink | RS_Careful)))
2298 bool invert = rend & RS_RVid;
2300 #ifndef NO_BOLD_UNDERLINE_REVERSE
2301 if (rend & RS_Bold && fore == Color_fg)
2303 if (ISSET_PIXCOLOR (Color_BD))
2311 if (rend & RS_Italic && fore == Color_fg)
2313 if (ISSET_PIXCOLOR (Color_IT))
2321 if (rend & RS_Uline && fore == Color_fg && ISSET_PIXCOLOR (Color_UL))
2328 if ((showcursor && row == screen.cur.row && text - stp == screen.cur.col)
2329 || !ISSET_PIXCOLOR (Color_HC))
2331 /* invert the column if no highlightColor is set or it is the
2332 * current cursor column */
2333 ::swap (fore, back);
2335 else if (ISSET_PIXCOLOR (Color_HC))
2339 #ifndef NO_BOLD_UNDERLINE_REVERSE
2341 if (ISSET_PIXCOLOR (Color_RV))
2353 if (rend & RS_Blink && (back == Color_bg || fore == Color_bg))
2355 if (!text_blink_ev.is_active ())
2357 text_blink_ev.again ();
2360 else if (hidden_text)
2366 // "careful" (too wide) character handling
2368 // include previous careful character(s) if possible, looks nicer (best effort...)
2370 && srp[text - stp - 1] & RS_Careful
2371 && RS_SAME (rend, srp[text - stp - 1]))
2372 text--, count++, xpixel -= fwidth;
2374 // force redraw after "careful" characters to avoid pixel droppings
2375 for (int i = 0; srp[col + i] & RS_Careful && col + i < ncol - 1; i++)
2376 drp[col + i + 1] = srp[col + i + 1] ^ RS_redraw;
2378 // force redraw before "careful" characters to avoid pixel droppings
2379 for (int i = 0; srp[text - stp - i] & RS_Careful && text - i > stp; i++)
2380 drp[text - stp - i - 1] = srp[text - stp - i - 1] ^ RS_redraw;
2385 * Actually do the drawing of the string here
2387 rxvt_font *font = (*fontset[GET_STYLE (rend)])[GET_FONT (rend)];
2389 if (expect_true (have_bg && back == Color_bg))
2391 // this is very ugly, maybe push it into ->draw?
2393 for (i = 0; i < count; i++) /* don't draw empty strings */
2396 font->draw (*drawable, xpixel, ypixel, text, count, fore, Color_transparent);
2400 CLEAR_CHARS (xpixel, ypixel, count);
2404 font->draw (*drawable, xpixel, ypixel, text, count, fore, back);
2406 if (expect_false (rend & RS_Uline && font->descent > 1 && fore != back))
2409 if (ISSET_PIXCOLOR (Color_underline))
2410 XSetForeground (dpy, gc, pix_colors[Color_underline]);
2413 XSetForeground (dpy, gc, pix_colors[fore]);
2415 XDrawLine (dpy, vt, gc,
2416 xpixel, ypixel + font->ascent + 1,
2417 xpixel + Width2Pixel (count) - 1, ypixel + font->ascent + 1);
2419 } /* for (col....) */
2420 } /* for (row....) */
2423 * G: cleanup cursor and display outline cursor if necessary
2429 if (option (Opt_cursorUnderline))
2434 #ifndef NO_CURSORCOLOR
2435 *crp = (*crp & ~ (RS_fgMask | RS_bgMask)) | cc1;
2439 else if (oldcursor.row >= 0)
2441 int cursorwidth = 1;
2442 int col = oldcursor.col;
2444 while (col && ROW(screen.cur.row).t[col] == NOCHAR)
2447 while (col + cursorwidth < ncol
2448 && drawn_buf[oldcursor.row].t[col + cursorwidth] == NOCHAR)
2451 #ifndef NO_CURSORCOLOR
2452 if (ISSET_PIXCOLOR (Color_cursor))
2453 XSetForeground (dpy, gc, pix_colors[Color_cursor]);
2456 XSetForeground (dpy, gc, pix_colors[ccol1]);
2458 XDrawRectangle (dpy, vt, gc,
2460 Row2Pixel (oldcursor.row),
2461 (unsigned int) (Width2Pixel (cursorwidth) - 1),
2462 (unsigned int) (Height2Pixel (1) - lineSpace - 1));
2467 * H: cleanup selection
2470 scr_swap_overlay ();
2472 HOOK_INVOKE ((this, HOOK_REFRESH_END, DT_END));
2474 scr_reverse_selection ();
2476 screen.flags = old_screen_flags;
2482 rxvt_term::scr_remap_chars (line_t &l) NOTHROW
2487 l.touch (); // maybe a bit of an overkill, but it's not performance-relevant
2489 for (int i = ncol; i--; )
2490 l.r[i] = SET_FONT (l.r[i], FONTSET (l.r[i])->find_font (l.t[i]));
2494 rxvt_term::scr_remap_chars () NOTHROW
2496 for (int i = total_rows; i--; )
2497 scr_remap_chars (row_buf [i]);
2499 for (int i = nrow; i--; )
2501 scr_remap_chars (drawn_buf [i]);
2502 scr_remap_chars (swap_buf [i]);
2507 rxvt_term::scr_recolour () NOTHROW
2509 #ifdef HAVE_BG_PIXMAP
2513 XSetWindowBackground (dpy, parent[0], pix_colors[Color_border]);
2514 XClearWindow (dpy, parent[0]);
2515 XSetWindowBackground (dpy, vt, pix_colors[Color_bg]);
2519 XSetWindowBackground (dpy, scrollBar.win, pix_colors[Color_border]);
2520 scrollBar.state = STATE_IDLE;
2526 /* bgPixmap.apply () does not do the following : */
2532 /* ------------------------------------------------------------------------- */
2534 rxvt_term::scr_clear (bool really) NOTHROW
2543 XClearWindow (dpy, vt);
2547 rxvt_term::scr_xor_rect (int beg_row, int beg_col, int end_row, int end_col, rend_t rstyle1, rend_t rstyle2) NOTHROW
2549 int view_end = view_start + nrow;
2552 for (row = max (beg_row, view_start); row <= min (end_row, view_end); row++)
2554 text_t *stp = ROW(row).t;
2555 rend_t *srp = ROW(row).r;
2557 for (col = beg_col; col < end_col; col++)
2558 srp[col] ^= rstyle1;
2560 while (col-- > beg_col && (stp[col] == NOCHAR || unicode::is_space (stp[col])))
2561 srp[col] ^= rstyle2;
2563 if (++col < end_col)
2564 srp[col] ^= rstyle2;
2569 rxvt_term::scr_xor_span (int beg_row, int beg_col, int end_row, int end_col, rend_t rstyle) NOTHROW
2571 int view_end = view_start + nrow;
2574 if (beg_row >= view_start)
2585 for (; row < min (end_row, view_end); row++, col = 0)
2586 for (rend_t *srp = ROW(row).r; col < ncol; col++)
2590 for (rend_t *srp = ROW(row).r; col < end_col; col++)
2594 /* ------------------------------------------------------------------------- */
2596 rxvt_term::scr_reverse_selection () NOTHROW
2599 && current_screen == selection.screen
2600 && selection.end.row >= view_start)
2604 scr_xor_rect (selection.beg.row, selection.beg.col,
2605 selection.end.row, selection.end.col,
2606 RS_RVid, RS_RVid | RS_Uline);
2609 scr_xor_span (selection.beg.row, selection.beg.col,
2610 selection.end.row, selection.end.col,
2615 /* ------------------------------------------------------------------------- */
2617 * Dump the whole scrollback and screen to the passed filedescriptor. The
2618 * invoking routine must close the fd.
2622 rxvt_term::scr_dump (int fd) NOTHROW
2625 unsigned int width, towrite;
2628 for (row = saveLines + top_row;
2629 row < saveLines + nrow - 1; row++)
2631 width = row_buf[row].l >= 0 ? row_buf[row].l
2633 for (towrite = width; towrite; towrite -= wrote)
2635 wrote = write (fd, & (row_buf[row].t[width - towrite]),
2638 return; /* XXX: death, no report */
2640 if (row_buf[row].l >= 0)
2641 if (write (fd, r1, 1) <= 0)
2642 return; /* XXX: death, no report */
2647 /* ------------------------------------------------------------------------- *
2648 * CHARACTER SELECTION *
2649 * ------------------------------------------------------------------------- */
2651 rxvt_term::selection_check (int check_more) NOTHROW
2658 pos.row = pos.col = 0;
2659 if (!IN_RANGE_EXC (selection.beg.row, top_row, nrow)
2660 || !IN_RANGE_EXC (selection.mark.row, top_row, nrow)
2661 || !IN_RANGE_EXC (selection.end.row, top_row, nrow)
2663 && current_screen == selection.screen
2664 && !ROWCOL_IS_BEFORE (screen.cur, selection.beg)
2665 && ROWCOL_IS_BEFORE (screen.cur, selection.end))
2667 && ROWCOL_IS_BEFORE (selection.beg, pos)
2668 && ROWCOL_IS_AFTER (selection.end, pos))
2670 && ROWCOL_IS_AFTER (selection.end, pos))
2671 || (check_more == 4 /* screen width change */
2672 && (selection.beg.row != selection.end.row
2673 || selection.end.col > ncol)))
2677 /* ------------------------------------------------------------------------- */
2679 * Paste a selection direct to the command fd
2682 rxvt_term::paste (char *data, unsigned int len) NOTHROW
2684 /* convert normal newline chars into common keyboard Return key sequence */
2685 for (unsigned int i = 0; i < len; i++)
2686 if (data[i] == C0_LF)
2689 if (priv_modes & PrivMode_BracketPaste)
2690 tt_printf ("\e[200~");
2692 tt_write (data, len);
2694 if (priv_modes & PrivMode_BracketPaste)
2695 tt_printf ("\e[201~");
2698 /* ------------------------------------------------------------------------- */
2700 * Respond to a notification that a primary selection has been sent
2701 * EXT: SelectionNotify
2704 rxvt_term::selection_paste (Window win, Atom prop, bool delete_prop) NOTHROW
2706 if (prop == None) /* check for failed XConvertSelection */
2708 if ((selection_type & Sel_CompoundText))
2710 int selnum = selection_type & Sel_whereMask;
2713 if (selnum != Sel_direct)
2714 selection_request_other (XA_STRING, selnum);
2717 if ((selection_type & Sel_UTF8String))
2719 int selnum = selection_type & Sel_whereMask;
2721 selection_type = Sel_CompoundText;
2722 if (selnum != Sel_direct)
2723 selection_request_other (xa[XA_COMPOUND_TEXT], selnum);
2731 unsigned long bytes_after;
2734 if (XGetWindowProperty (dpy, win, prop,
2736 delete_prop, AnyPropertyType,
2737 &ct.encoding, &ct.format,
2738 &ct.nitems, &bytes_after,
2739 &ct.value) != Success)
2745 if (ct.encoding == None)
2750 // fetch and append remaining data
2753 if (XGetWindowProperty (dpy, win, prop,
2754 ct.nitems / 4, (bytes_after + 3) / 4,
2755 delete_prop, AnyPropertyType,
2756 &ct2.encoding, &ct2.format,
2757 &ct2.nitems, &bytes_after,
2758 &ct2.value) != Success)
2761 // realloc should be compatible to XFree, here, and elsewhere, too
2762 ct.value = (unsigned char *)realloc (ct.value, ct.nitems + ct2.nitems + 1);
2763 memcpy (ct.value + ct.nitems, ct2.value, ct2.nitems + 1);
2764 ct.nitems += ct2.nitems;
2772 if (ct.encoding == xa[XA_INCR])
2774 // INCR selection, start handshake
2776 XDeleteProperty (dpy, win, prop);
2778 selection_wait = Sel_incr;
2787 if (selection_wait == Sel_incr)
2791 // finally complete, now paste the whole thing
2792 selection_wait = Sel_normal;
2793 ct.value = (unsigned char *)incr_buf;
2794 ct.nitems = incr_buf_fill;
2801 if (selection_wait == Sel_normal
2802 && (win != display->root || prop != XA_CUT_BUFFER0)) // avoid recursion
2805 * pass through again trying CUT_BUFFER0 if we've come from
2806 * XConvertSelection () but nothing was presented
2808 selection_paste (display->root, XA_CUT_BUFFER0, False);
2814 else if (selection_wait == Sel_incr)
2818 while (incr_buf_fill + ct.nitems > incr_buf_size)
2820 incr_buf_size = incr_buf_size ? incr_buf_size * 2 : 128*1024;
2821 incr_buf = (char *)realloc (incr_buf, incr_buf_size);
2824 memcpy (incr_buf + incr_buf_fill, ct.value, ct.nitems);
2825 incr_buf_fill += ct.nitems;
2834 // xlib is horribly broken with respect to UTF8_STRING, and nobody cares to fix it
2835 // so recode it manually
2836 if (ct.encoding == xa[XA_UTF8_STRING])
2838 wchar_t *w = rxvt_utf8towcs ((const char *)ct.value, ct.nitems);
2839 char *s = rxvt_wcstombs (w);
2841 // TODO: strlen == only the first element will be converted. well...
2842 paste (s, strlen (s));
2847 if (XmbTextPropertyToTextList (dpy, &ct, &cl, &cr) >= 0
2850 for (int i = 0; i < cr; i++)
2851 paste (cl[i], strlen (cl[i]));
2853 XFreeStringList (cl);
2856 paste ((char *)ct.value, ct.nitems); // paste raw
2861 if (selection_wait == Sel_normal)
2862 selection_wait = Sel_none;
2866 rxvt_term::incr_cb (ev::timer &w, int revents) NOTHROW
2868 selection_wait = Sel_none;
2873 rxvt_warn ("data loss: timeout on INCR selection paste, ignoring.\n");
2877 rxvt_term::selection_property (Window win, Atom prop) NOTHROW
2879 if (prop == None || selection_wait != Sel_incr)
2882 selection_paste (win, prop, true);
2885 /* ------------------------------------------------------------------------- */
2887 * Request the current selection:
2888 * Order: > internal selection if available
2889 * > PRIMARY, SECONDARY, CLIPBOARD if ownership is claimed (+)
2891 * (+) if ownership is claimed but property is empty, rxvt_selection_paste ()
2892 * will auto fallback to CUT_BUFFER0
2893 * EXT: button 2 release
2896 rxvt_term::selection_request (Time tm, int selnum) NOTHROW
2898 if (selection.text && selnum == Sel_Primary)
2900 /* internal selection */
2901 char *str = rxvt_wcstombs (selection.text, selection.len);
2902 paste (str, strlen (str));
2908 selection_request_time = tm;
2909 selection_wait = Sel_normal;
2911 #if X_HAVE_UTF8_STRING
2912 selection_type = Sel_UTF8String;
2913 if (selection_request_other (xa[XA_UTF8_STRING], selnum))
2916 selection_type = Sel_CompoundText;
2917 if (selection_request_other (xa[XA_COMPOUND_TEXT], selnum))
2922 selection_wait = Sel_none; /* don't loop in selection_paste () */
2923 selection_paste (display->root, XA_CUT_BUFFER0, false);
2927 rxvt_term::selection_request_other (Atom target, int selnum) NOTHROW
2931 selection_type |= selnum;
2933 if (selnum == Sel_Primary)
2935 else if (selnum == Sel_Secondary)
2938 sel = xa[XA_CLIPBOARD];
2940 if (XGetSelectionOwner (dpy, sel) != None)
2942 XConvertSelection (dpy, sel, target, xa[XA_VT_SELECTION],
2943 vt, selection_request_time);
2950 /* ------------------------------------------------------------------------- */
2952 * Clear all selected text
2953 * EXT: SelectionClear
2956 rxvt_term::selection_clear () NOTHROW
2959 free (selection.text);
2960 selection.text = NULL;
2964 if (display->selection_owner == this)
2965 display->selection_owner = 0;
2968 /* ------------------------------------------------------------------------- */
2970 * Copy a selection into the cut buffer
2971 * EXT: button 1 or 3 release
2974 rxvt_term::selection_make (Time tm)
2977 wchar_t *new_selection_text;
2980 switch (selection.op)
2982 case SELECTION_CONT:
2984 case SELECTION_INIT:
2987 case SELECTION_BEGIN:
2988 selection.op = SELECTION_DONE;
2994 selection.op = SELECTION_DONE;
2996 if (selection.clicks == 4)
2997 return; /* nothing selected, go away */
2999 if (HOOK_INVOKE ((this, HOOK_SEL_MAKE, DT_LONG, (long)tm, DT_END)))
3002 i = (selection.end.row - selection.beg.row + 1) * (ncol + 1);
3003 new_selection_text = (wchar_t *)rxvt_malloc ((i + 4) * sizeof (wchar_t));
3008 int col = selection.beg.col;
3009 int row = selection.beg.row;
3013 for (; row <= selection.end.row; row++, col = 0)
3018 col = selection.beg.col;
3023 end_col = ROW(row).l;
3027 if (row == selection.end.row
3032 min_it (end_col, selection.end.col);
3034 t = ROW(row).t + col;
3036 for (; col < end_col; col++)
3040 #if ENABLE_COMBINING
3041 else if (IS_COMPOSE (*t))
3043 int len = rxvt_composite.expand (*t, 0);
3051 new_selection_text = (wchar_t *)rxvt_realloc (new_selection_text, (i + 4) * sizeof (wchar_t));
3054 ofs += rxvt_composite.expand (*t++, new_selection_text + ofs);
3058 new_selection_text[ofs++] = *t++;
3065 && new_selection_text[ofs - 1] != C0_LF
3066 && unicode::is_space (new_selection_text[ofs - 1]))
3069 new_selection_text[ofs++] = C0_LF;
3073 if (!ROW(row).is_longer () && row != selection.end.row)
3074 new_selection_text[ofs++] = C0_LF;
3077 if (end_col != selection.end.col)
3078 new_selection_text[ofs++] = C0_LF;
3080 new_selection_text[ofs] = 0;
3084 free (new_selection_text);
3088 free (selection.text);
3090 // we usually allocate much more than necessary, so realloc it smaller again
3091 selection.len = ofs;
3092 selection.text = (wchar_t *)rxvt_realloc (new_selection_text, (ofs + 1) * sizeof (wchar_t));
3094 if (HOOK_INVOKE ((this, HOOK_SEL_GRAB, DT_LONG, (long)tm, DT_END)))
3097 selection_grab (tm);
3101 rxvt_term::selection_grab (Time tm) NOTHROW
3103 selection_time = tm;
3105 XSetSelectionOwner (dpy, XA_PRIMARY, vt, tm);
3106 if (XGetSelectionOwner (dpy, XA_PRIMARY) == vt)
3108 display->set_selection_owner (this);
3120 if (XwcTextListToTextProperty (dpy, &selection.text, 1, XStringStyle, &ct) >= 0)
3122 set_string_property (XA_CUT_BUFFER0, ct.value, ct.nitems);
3128 /* ------------------------------------------------------------------------- */
3130 * Mark or select text based upon number of clicks: 1, 2, or 3
3131 * EXT: button 1 press
3134 rxvt_term::selection_click (int clicks, int x, int y) NOTHROW
3136 clicks = ((clicks - 1) % 3) + 1;
3137 selection.clicks = clicks; /* save clicks so extend will work */
3139 if (clicks == 2 && !selection.rect
3140 && HOOK_INVOKE ((this, HOOK_SEL_EXTEND, DT_END)))
3142 MEvent.clicks = 1; // what a mess
3143 selection.screen = current_screen;
3144 selection.op = SELECTION_CONT;
3148 selection_start_colrow (Pixel2Col (x), Pixel2Row (y));
3150 if (clicks == 2 || clicks == 3)
3151 selection_extend_colrow (selection.mark.col,
3152 selection.mark.row - view_start,
3154 1, /* button press */
3155 0); /* click change */
3158 /* ------------------------------------------------------------------------- */
3160 * Mark a selection at the specified col/row
3163 rxvt_term::selection_start_colrow (int col, int row) NOTHROW
3167 selection.mark.row = row + view_start;
3168 selection.mark.col = col;
3170 selection.mark.row = clamp (selection.mark.row, top_row, nrow - 1);
3171 selection.mark.col = clamp (selection.mark.col, 0, ncol - 1);
3173 while (selection.mark.col > 0
3174 && ROW(selection.mark.row).t[selection.mark.col] == NOCHAR)
3175 --selection.mark.col;
3179 /* clear the old selection */
3180 selection.beg.row = selection.end.row = selection.mark.row;
3181 selection.beg.col = selection.end.col = selection.mark.col;
3184 selection.op = SELECTION_INIT;
3185 selection.screen = current_screen;
3188 /* ------------------------------------------------------------------------- */
3190 * Word select: select text for 2 clicks
3191 * We now only find out the boundary in one direction
3194 /* what do we want: spaces/tabs are delimiters or cutchars or non-cutchars */
3195 #define DELIMIT_TEXT(x) \
3196 (unicode::is_space (x) ? 2 : (x) <= 0xff && !!strchr (rs[Rs_cutchars], (x)))
3197 #define DELIMIT_REND(x) 1
3200 rxvt_term::selection_delimit_word (enum page_dirn dirn, const row_col_t *mark, row_col_t *ret) NOTHROW
3202 int col, row, dirnadd, tcol, trow, w1, w2;
3209 bound.row = top_row - 1;
3216 bound.col = ncol - 1;
3221 col = max (mark->col, 0);
3223 /* find the edge of a word */
3224 stp = ROW(row).t + col; w1 = DELIMIT_TEXT (*stp);
3225 srp = ROW(row).r + col; w2 = DELIMIT_REND (*srp);
3229 for (; col != bound.col; col += dirnadd)
3237 if (DELIMIT_TEXT (*stp) != w1)
3239 if (DELIMIT_REND (*srp) != w2)
3243 if ((col == bound.col) && (row != bound.row))
3245 if (ROW(row - (dirn == UP ? 1 : 0)).is_longer ())
3247 trow = row + dirnadd;
3248 tcol = dirn == UP ? ncol - 1 : 0;
3253 stp = ROW(trow).t + tcol;
3254 srp = ROW(trow).r + tcol;
3256 if (DELIMIT_TEXT (*stp) != w1 || DELIMIT_REND (*srp) != w2)
3268 col++; /* put us on one past the end */
3270 /* Poke the values back in */
3275 /* ------------------------------------------------------------------------- */
3277 * Extend the selection to the specified x/y pixel location
3278 * EXT: button 3 press; button 1 or 3 drag
3279 * flag == 0 ==> button 1
3280 * flag == 1 ==> button 3 press
3281 * flag == 2 ==> button 3 motion
3284 rxvt_term::selection_extend (int x, int y, int flag) NOTHROW
3286 int col = clamp (Pixel2Col (x), 0, ncol);
3287 int row = clamp (Pixel2Row (y), 0, nrow - 1);
3290 * If we're selecting characters (single click) then we must check first
3291 * if we are at the same place as the original mark. If we are then
3292 * select nothing. Otherwise, if we're to the right of the mark, you have to
3293 * be _past_ a character for it to be selected.
3295 if (((selection.clicks % 3) == 1) && !flag
3296 && (col == selection.mark.col
3297 && (row == selection.mark.row - view_start)))
3299 /* select nothing */
3300 selection.beg.row = selection.end.row = 0;
3301 selection.beg.col = selection.end.col = 0;
3302 selection.clicks = 4;
3307 if (selection.clicks == 4)
3308 selection.clicks = 1;
3310 selection_extend_colrow (col, row, !!flag, /* ? button 3 */
3311 flag == 1 ? 1 : 0, /* ? button press */
3312 0); /* no click change */
3315 /* ------------------------------------------------------------------------- */
3317 * Extend the selection to the specified col/row
3320 rxvt_term::selection_extend_colrow (int32_t col, int32_t row, int button3, int buttonpress, int clickchange) NOTHROW
3329 switch (selection.op)
3331 case SELECTION_INIT:
3333 selection.op = SELECTION_BEGIN;
3335 case SELECTION_BEGIN:
3336 if (row != selection.mark.row || col != selection.mark.col
3337 || (!button3 && buttonpress))
3338 selection.op = SELECTION_CONT;
3340 case SELECTION_DONE:
3341 selection.op = SELECTION_CONT;
3343 case SELECTION_CONT:
3345 case SELECTION_CLEAR:
3346 selection_start_colrow (col, row);
3352 if (selection.beg.col == selection.end.col
3353 && selection.beg.col != selection.mark.col
3354 && selection.beg.row == selection.end.row
3355 && selection.beg.row != selection.mark.row)
3357 selection.beg.col = selection.end.col = selection.mark.col;
3358 selection.beg.row = selection.end.row = selection.mark.row;
3362 pos.row = view_start + row;
3365 * This is mainly xterm style selection with a couple of differences, mainly
3366 * in the way button3 drag extension works.
3367 * We're either doing: button1 drag; button3 press; or button3 drag
3368 * a) button1 drag : select around a midpoint/word/line - that point/word/line
3369 * is always at the left/right edge of the selection.
3370 * b) button3 press: extend/contract character/word/line at whichever edge of
3371 * the selection we are closest to.
3372 * c) button3 drag : extend/contract character/word/line - we select around
3373 * a point/word/line which is either the start or end of the selection
3374 * and it was decided by whichever point/word/line was `fixed' at the
3375 * time of the most recent button3 press
3377 if (button3 && buttonpress)
3381 * first determine which edge of the selection we are closest to
3383 if (ROWCOL_IS_BEFORE (pos, selection.beg)
3384 || (!ROWCOL_IS_AFTER (pos, selection.end)
3385 && (((pos.col - selection.beg.col)
3386 + ((pos.row - selection.beg.row) * ncol))
3387 < ((selection.end.col - pos.col)
3388 + ((selection.end.row - pos.row) * ncol)))))
3391 if (closeto == LEFT)
3393 selection.beg.row = pos.row;
3394 selection.beg.col = pos.col;
3395 selection.mark.row = selection.end.row;
3396 selection.mark.col = selection.end.col - (selection.clicks == 2);
3400 selection.end.row = pos.row;
3401 selection.end.col = pos.col;
3402 selection.mark.row = selection.beg.row;
3403 selection.mark.col = selection.beg.col;
3408 /* button1 drag or button3 drag */
3409 if (ROWCOL_IS_AFTER (selection.mark, pos))
3411 if (selection.mark.row == selection.end.row
3412 && selection.mark.col == selection.end.col
3414 && selection.clicks == 2)
3415 selection.mark.col--;
3417 selection.beg.row = pos.row;
3418 selection.beg.col = pos.col;
3419 selection.end.row = selection.mark.row;
3420 selection.end.col = selection.mark.col + (selection.clicks == 2);
3424 selection.beg.row = selection.mark.row;
3425 selection.beg.col = selection.mark.col;
3426 selection.end.row = pos.row;
3427 selection.end.col = pos.col;
3431 if (selection.clicks == 1)
3433 if (selection.beg.col > ROW(selection.beg.row).l //TODO//FIXME//LEN
3434 && !ROW(selection.beg.row).is_longer ()
3439 selection.beg.col = ncol;
3442 selection.end.col > ROW(selection.end.row).l //TODO//FIXME//LEN
3443 && !ROW(selection.end.row).is_longer ()
3448 selection.end.col = ncol;
3450 else if (selection.clicks == 2)
3452 if (ROWCOL_IS_AFTER (selection.end, selection.beg))
3453 selection.end.col--;
3455 selection_delimit_word (UP, &selection.beg, &selection.beg);
3456 selection_delimit_word (DN, &selection.end, &selection.end);
3458 else if (selection.clicks == 3)
3461 if (option (Opt_tripleclickwords))
3463 selection_delimit_word (UP, &selection.beg, &selection.beg);
3465 for (int end_row = selection.mark.row; end_row < nrow; end_row++)
3467 if (!ROW(end_row).is_longer ())
3469 selection.end.row = end_row;
3470 selection.end.col = ROW(end_row).l;
3471 # if !ENABLE_MINIMAL
3472 selection_remove_trailing_spaces ();
3481 if (ROWCOL_IS_AFTER (selection.mark, selection.beg))
3482 selection.mark.col++;
3484 selection.beg.col = 0;
3485 selection.end.col = ncol;
3487 // select a complete logical line
3488 while (selection.beg.row > -saveLines
3489 && ROW(selection.beg.row - 1).is_longer ())
3490 selection.beg.row--;
3492 while (selection.end.row < nrow
3493 && ROW(selection.end.row).is_longer ())
3494 selection.end.row++;
3498 if (button3 && buttonpress)
3500 /* mark may need to be changed */
3501 if (closeto == LEFT)
3503 selection.mark.row = selection.end.row;
3504 selection.mark.col = selection.end.col - (selection.clicks == 2);
3508 selection.mark.row = selection.beg.row;
3509 selection.mark.col = selection.beg.col;
3514 if (selection.rect && selection.beg.col > selection.end.col)
3515 ::swap (selection.beg.col, selection.end.col);
3521 rxvt_term::selection_remove_trailing_spaces () NOTHROW
3523 int32_t end_col, end_row;
3526 end_col = selection.end.col;
3527 end_row = selection.end.row;
3529 for (; end_row >= selection.beg.row; )
3531 stp = ROW(end_row).t;
3533 while (--end_col >= 0)
3535 if (stp[end_col] != NOCHAR
3536 && !unicode::is_space (stp[end_col]))
3541 || !ROW(end_row - 1).is_longer ())
3543 selection.end.col = end_col + 1;
3544 selection.end.row = end_row;
3552 if (selection.mark.row > selection.end.row)
3554 selection.mark.row = selection.end.row;
3555 selection.mark.col = selection.end.col;
3557 else if (selection.mark.row == selection.end.row
3558 && selection.mark.col > selection.end.col)
3559 selection.mark.col = selection.end.col;
3563 /* ------------------------------------------------------------------------- */
3565 * Double click on button 3 when already selected
3566 * EXT: button 3 double click
3569 rxvt_term::selection_rotate (int x, int y) NOTHROW
3571 selection.clicks = selection.clicks % 3 + 1;
3572 selection_extend_colrow (Pixel2Col (x), Pixel2Row (y), 1, 0, 1);
3575 /* ------------------------------------------------------------------------- */
3577 * Respond to a request for our current selection
3578 * EXT: SelectionRequest
3581 rxvt_term::selection_send (const XSelectionRequestEvent &rq) NOTHROW
3585 ev.type = SelectionNotify;
3587 ev.display = rq.display;
3588 ev.requestor = rq.requestor;
3589 ev.selection = rq.selection;
3590 ev.target = rq.target;
3593 if (rq.target == xa[XA_TARGETS])
3595 Atom target_list[6];
3596 Atom *target = target_list;
3598 *target++ = xa[XA_TARGETS];
3599 *target++ = xa[XA_TIMESTAMP];
3600 *target++ = XA_STRING;
3601 *target++ = xa[XA_TEXT];
3602 *target++ = xa[XA_COMPOUND_TEXT];
3603 #if X_HAVE_UTF8_STRING
3604 *target++ = xa[XA_UTF8_STRING];
3607 XChangeProperty (dpy, rq.requestor, rq.property, XA_ATOM,
3608 32, PropModeReplace,
3609 (unsigned char *)target_list, target - target_list);
3610 ev.property = rq.property;
3613 else if (rq.target == xa[XA_MULTIPLE])
3615 /* TODO: Handle MULTIPLE */
3618 else if (rq.target == xa[XA_TIMESTAMP] && selection.text)
3620 XChangeProperty (dpy, rq.requestor, rq.property, rq.target,
3621 32, PropModeReplace, (unsigned char *)&selection_time, 1);
3622 ev.property = rq.property;
3624 else if (rq.target == XA_STRING
3625 || rq.target == xa[XA_TEXT]
3626 || rq.target == xa[XA_COMPOUND_TEXT]
3627 || rq.target == xa[XA_UTF8_STRING]
3631 Atom target = rq.target;
3636 enc_string = XStringStyle,
3637 enc_text = XStdICCTextStyle,
3638 enc_compound_text = XCompoundTextStyle,
3639 #ifdef X_HAVE_UTF8_STRING
3640 enc_utf8 = XUTF8StringStyle,
3646 if (target == XA_STRING)
3647 // we actually don't do XA_STRING, but who cares, as i18n clients
3648 // will ask for another format anyways.
3650 else if (target == xa[XA_TEXT])
3652 else if (target == xa[XA_COMPOUND_TEXT])
3653 style = enc_compound_text;
3655 else if (target == xa[XA_UTF8_STRING])
3660 target = xa[XA_COMPOUND_TEXT];
3661 style = enc_compound_text;
3666 cl = selection.text;
3667 selectlen = selection.len;
3676 // xlib is horribly broken with respect to UTF8_STRING, and nobody cares to fix it
3677 // so recode it manually
3678 if (style == enc_utf8)
3681 ct.encoding = target;
3683 ct.value = (unsigned char *)rxvt_wcstoutf8 (cl, selectlen);
3684 ct.nitems = strlen ((char *)ct.value);
3688 if (XwcTextListToTextProperty (dpy, &cl, 1, (XICCEncodingStyle) style, &ct) >= 0)
3692 /* if we failed to convert then send it raw */
3693 ct.value = (unsigned char *)cl;
3694 ct.nitems = selectlen;
3695 ct.encoding = target;
3698 XChangeProperty (dpy, rq.requestor, rq.property,
3699 ct.encoding, 8, PropModeReplace,
3700 ct.value, (int)ct.nitems);
3701 ev.property = rq.property;
3707 XSendEvent (dpy, rq.requestor, False, 0L, (XEvent *)&ev);
3710 /* ------------------------------------------------------------------------- */
3713 rxvt_term::im_set_position (XPoint &pos) NOTHROW
3715 XWindowAttributes xwa;
3717 XGetWindowAttributes (dpy, vt, &xwa);
3719 pos.x = xwa.x + Col2Pixel (screen.cur.col);
3720 pos.y = xwa.y + Height2Pixel (screen.cur.row) + fbase;
3726 rxvt_term::scr_overlay_new (int x, int y, int w, int h) NOTHROW
3728 if (nrow < 1 || ncol < 1)
3735 if (x < 0) x = ncol - w;
3736 if (y < 0) y = nrow - h;
3738 // make space for border
3739 w += 2; min_it (w, ncol);
3740 h += 2; min_it (h, nrow);
3742 x -= 1; clamp_it (x, 0, ncol - w);
3743 y -= 1; clamp_it (y, 0, nrow - h);
3748 ov.text = new text_t *[h];
3749 ov.rend = new rend_t *[h];
3751 for (y = 0; y < h; y++)
3753 text_t *tp = ov.text[y] = new text_t[w];
3754 rend_t *rp = ov.rend[y] = new rend_t[w];
3757 rend_t r = OVERLAY_RSTYLE;
3760 t0 = 0x2554, t1 = 0x2550, t2 = 0x2557;
3762 t0 = 0x2551, t1 = 0x0020, t2 = 0x2551;
3764 t0 = 0x255a, t1 = 0x2550, t2 = 0x255d;
3769 for (x = w - 2; x > 0; --x)
3781 rxvt_term::scr_overlay_off () NOTHROW
3788 for (int y = 0; y < ov.h; y++)
3790 delete [] ov.text[y];
3791 delete [] ov.rend[y];
3794 delete [] ov.text; ov.text = 0;
3795 delete [] ov.rend; ov.rend = 0;
3799 rxvt_term::scr_overlay_set (int x, int y, text_t text, rend_t rend) NOTHROW
3801 if (!ov.text || x >= ov.w - 2 || y >= ov.h - 2)
3806 ov.text[y][x] = text;
3807 ov.rend[y][x] = rend;
3811 rxvt_term::scr_overlay_set (int x, int y, const char *s) NOTHROW
3814 scr_overlay_set (x++, y, *s++);
3818 rxvt_term::scr_overlay_set (int x, int y, const wchar_t *s) NOTHROW
3823 int width = WCWIDTH (t);
3827 scr_overlay_set (x++, y, t);
3834 rxvt_term::scr_swap_overlay () NOTHROW
3839 // hide cursor if it is within the overlay area
3840 if (IN_RANGE_EXC (screen.cur.col - ov.x, 0, ov.w)
3841 && IN_RANGE_EXC (screen.cur.row - ov.y, 0, ov.h))
3842 screen.flags &= ~Screen_VisibleCursor;
3844 // swap screen mem with overlay
3845 for (int y = ov.h; y--; )
3847 text_t *t1 = ov.text[y];
3848 rend_t *r1 = ov.rend[y];
3850 text_t *t2 = ROW(y + ov.y + view_start).t + ov.x;
3851 rend_t *r2 = ROW(y + ov.y + view_start).r + ov.x;
3853 for (int x = ov.w; x--; )
3855 text_t t = *t1; *t1++ = *t2; *t2++ = t;
3856 rend_t r = *r1; *r1++ = *r2; *r2++ = SET_FONT (r, FONTSET (r)->find_font (t));
3862 /* ------------------------------------------------------------------------- */