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Comparing rxvt-unicode/src/screen.C (file contents):
Revision 1.302 by sasha, Wed Feb 6 16:44:47 2008 UTC vs.
Revision 1.330 by root, Tue Dec 29 04:18:10 2009 UTC

83 ROW_AND_COL_IN_ROW_AT_OR_AFTER ((X).row, (X).col, (Y).row, (Y).col) 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) \ 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) 85 ROW_AND_COL_IN_ROW_AT_OR_BEFORE ((X).row, (X).col, (Y).row, (Y).col)
86 86
87/* 87/*
88 * CLEAR_ROWS : clear <num> rows starting from row <row>
89 * CLEAR_CHARS: clear <num> chars starting from pixel position <x,y> 88 * CLEAR_CHARS: clear <num> chars starting from pixel position <x,y>
90 * ERASE_ROWS : set <num> rows starting from row <row> to the foreground colour
91 */ 89 */
92#define CLEAR_ROWS(row, num) \
93 if (mapped) \
94 XClearArea (dpy, vt, 0, \
95 Row2Pixel (row), (unsigned int)width, \
96 (unsigned int)Height2Pixel (num), False)
97
98#define CLEAR_CHARS(x, y, num) \ 90#define CLEAR_CHARS(x, y, num) \
99 if (mapped) \ 91 if (mapped) \
100 XClearArea (dpy, vt, x, y, \ 92 XClearArea (dpy, vt, x, y, \
101 (unsigned int)Width2Pixel (num), \ 93 (unsigned int)Width2Pixel (num), \
102 (unsigned int)Height2Pixel (1), False) 94 (unsigned int)Height2Pixel (1), False)
103 95
104#define ERASE_ROWS(row, num) \
105 XFillRectangle (dpy, vt, gc, \
106 0, Row2Pixel (row), \
107 (unsigned int)width, \
108 (unsigned int)Height2Pixel (num))
109
110/* ------------------------------------------------------------------------- * 96/* ------------------------------------------------------------------------- *
111 * SCREEN `COMMON' ROUTINES * 97 * SCREEN `COMMON' ROUTINES *
112 * ------------------------------------------------------------------------- */ 98 * ------------------------------------------------------------------------- */
113 99
114/* Fill part/all of a line with blanks. */ 100/* Fill part/all of a line with blanks. */
146 132
147 l.l = 0; 133 l.l = 0;
148 l.f = 0; 134 l.f = 0;
149} 135}
150 136
137// nuke a single wide character at the given column
138void
139rxvt_term::scr_kill_char (line_t &l, int col) const NOTHROW
140{
141 // find begin
142 while (col > 0 && l.t[col] == NOCHAR)
143 col--;
144
145 rend_t rend = l.r[col] & ~RS_baseattrMask;
146 rend = SET_FONT (rend, FONTSET (rend)->find_font (' '));
147
148 // found start, nuke
149 do {
150 l.t[col] = ' ';
151 l.r[col] = rend;
152 col++;
153 } while (col < ncol && l.t[col] == NOCHAR);
154}
155
151/* ------------------------------------------------------------------------- * 156/* ------------------------------------------------------------------------- *
152 * SCREEN INITIALISATION * 157 * SCREEN INITIALISATION *
153 * ------------------------------------------------------------------------- */ 158 * ------------------------------------------------------------------------- */
154 159
155void 160void
156rxvt_term::scr_reset () 161rxvt_term::scr_reset ()
157{ 162{
158#if ENABLE_OVERLAY
159 scr_overlay_off ();
160#endif
161
162 rvideo_mode = false;
163 view_start = 0; 163 view_start = 0;
164 num_scr = 0; 164 num_scr = 0;
165 165
166 if (ncol == 0) 166 if (ncol == 0)
167 ncol = 80; 167 ncol = 80;
169 if (nrow == 0) 169 if (nrow == 0)
170 nrow = 24; 170 nrow = 24;
171 171
172 if (ncol == prev_ncol && nrow == prev_nrow) 172 if (ncol == prev_ncol && nrow == prev_nrow)
173 return; 173 return;
174
175 if (current_screen != PRIMARY)
176 scr_swap_screen ();
177 174
178 // we need at least two lines for wrapping to work correctly 175 // we need at least two lines for wrapping to work correctly
179 while (nrow + saveLines < 2) 176 while (nrow + saveLines < 2)
180 { 177 {
181 //TODO//FIXME 178 //TODO//FIXME
281 278
282 if (top_row) 279 if (top_row)
283 { 280 {
284 // Re-wrap lines. This is rather ugly, possibly because I am too dumb 281 // Re-wrap lines. This is rather ugly, possibly because I am too dumb
285 // to come up with a lean and mean algorithm. 282 // to come up with a lean and mean algorithm.
283 // TODO: maybe optimise when width didn't change
286 284
287 row_col_t ocur = screen.cur; 285 row_col_t ocur = screen.cur;
288 ocur.row = MOD (term_start + ocur.row, prev_total_rows); 286 ocur.row = MOD (term_start + ocur.row, prev_total_rows);
289 287
290 do 288 do
291 { 289 {
292 p = MOD (p - 1, prev_total_rows); 290 p = MOD (p - 1, prev_total_rows);
293#ifdef DEBUG_STRICT
294 assert (old_buf [MOD (p, prev_total_rows)].t); 291 assert (old_buf [MOD (p, prev_total_rows)].t);
295#endif
296 int plines = 1; 292 int plines = 1;
297 int llen = old_buf [MOD (p, prev_total_rows)].l; 293 int llen = old_buf [MOD (p, prev_total_rows)].l;
298 294
299 while (p != pend && old_buf [MOD (p - 1, prev_total_rows)].is_longer ()) 295 while (p != pend && old_buf [MOD (p - 1, prev_total_rows)].is_longer ())
300 { 296 {
394 delete old_ta; 390 delete old_ta;
395 delete old_ra; 391 delete old_ra;
396 392
397 clamp_it (screen.cur.row, 0, nrow - 1); 393 clamp_it (screen.cur.row, 0, nrow - 1);
398 clamp_it (screen.cur.col, 0, ncol - 1); 394 clamp_it (screen.cur.col, 0, ncol - 1);
395 }
399 396
400 free (tabs); 397 free (tabs);
401 } 398 tabs = (char *)rxvt_malloc (ncol);
399
400 for (int col = ncol; --col; )
401 tabs [col] = col % TABSIZE == 0;
402 402
403 CLEAR_ALL_SELECTION (); 403 CLEAR_ALL_SELECTION ();
404 404
405 prev_nrow = nrow; 405 prev_nrow = nrow;
406 prev_ncol = ncol; 406 prev_ncol = ncol;
407
408 tabs = (char *)rxvt_malloc (ncol);
409
410 for (int col = ncol; --col; )
411 tabs [col] = col % TABSIZE == 0;
412
413 if (current_screen != PRIMARY)
414 scr_swap_screen ();
415 407
416 tt_winch (); 408 tt_winch ();
417 409
418 HOOK_INVOKE ((this, HOOK_RESET, DT_END)); 410 HOOK_INVOKE ((this, HOOK_RESET, DT_END));
419} 411}
431 delete ralloc; ralloc = 0; 423 delete ralloc; ralloc = 0;
432 424
433 free (row_buf); 425 free (row_buf);
434 free (swap_buf); 426 free (swap_buf);
435 free (drawn_buf); 427 free (drawn_buf);
428 row_buf = 0; // signal that we freed all the arrays above
429
436 free (tabs); 430 free (tabs);
437 431 tabs = 0;
438 row_buf = 0; // signal that we freed all the arrays
439 } 432 }
440} 433}
441 434
442/* ------------------------------------------------------------------------- */ 435/* ------------------------------------------------------------------------- */
443/* 436/*
444 * Hard reset 437 * Hard/Soft reset
445 */ 438 */
446void 439void
447rxvt_term::scr_poweron () 440rxvt_term::scr_poweron ()
448{ 441{
449 scr_release (); 442 scr_release ();
450 prev_nrow = prev_ncol = 0; 443 prev_nrow = prev_ncol = 0;
444 rvideo_mode = false;
445 scr_soft_reset ();
451 scr_reset (); 446 scr_reset ();
452 447
453 scr_clear (true); 448 scr_clear (true);
454 scr_refresh (); 449 scr_refresh ();
450}
451
452void
453rxvt_term::scr_soft_reset ()
454{
455 /* only affects modes, nothing drastic such as clearing the screen */
456#if ENABLE_OVERLAY
457 scr_overlay_off ();
458#endif
459
460 if (current_screen != PRIMARY)
461 scr_swap_screen ();
462
463 scr_scroll_region (0, MAX_ROWS - 1);
464 scr_rendition (0, ~RS_None);
465 scr_insert_mode (0);
455} 466}
456 467
457/* ------------------------------------------------------------------------- * 468/* ------------------------------------------------------------------------- *
458 * PROCESS SCREEN COMMANDS * 469 * PROCESS SCREEN COMMANDS *
459 * ------------------------------------------------------------------------- */ 470 * ------------------------------------------------------------------------- */
497 } 508 }
498 509
499 /* boundary check in case screen size changed between SAVE and RESTORE */ 510 /* boundary check in case screen size changed between SAVE and RESTORE */
500 min_it (s->cur.row, nrow - 1); 511 min_it (s->cur.row, nrow - 1);
501 min_it (s->cur.col, ncol - 1); 512 min_it (s->cur.col, ncol - 1);
502#ifdef DEBUG_STRICT
503 assert (s->cur.row >= 0); 513 assert (s->cur.row >= 0);
504 assert (s->cur.col >= 0); 514 assert (s->cur.col >= 0);
505#endif
506} 515}
507 516
508void 517void
509rxvt_term::scr_swap_screen () 518rxvt_term::scr_swap_screen ()
510{ 519{
770 scr_scroll_text (screen.tscroll, screen.bscroll, minlines); 779 scr_scroll_text (screen.tscroll, screen.bscroll, minlines);
771 screen.cur.row -= minlines; 780 screen.cur.row -= minlines;
772 } 781 }
773 } 782 }
774 783
775#ifdef DEBUG_STRICT
776 assert (screen.cur.col < ncol); 784 assert (screen.cur.col < ncol);
777 assert (screen.cur.row < nrow 785 assert (screen.cur.row < nrow
778 && screen.cur.row >= top_row); 786 && screen.cur.row >= top_row);
779#endif
780 int row = screen.cur.row; 787 int row = screen.cur.row;
781 788
782 checksel = selection.op && current_screen == selection.screen ? 1 : 0; 789 checksel = selection.op && current_screen == selection.screen ? 1 : 0;
783 790
784 line_t *line = &ROW(row); 791 line_t *line = &ROW(row);
785 792
786 while (str < strend) 793 while (str < strend)
787 { 794 {
788 c = (unicode_t)*str++; // convert to rxvt-unicodes representation 795 c = (unicode_t)*str++; // convert to rxvt-unicodes representation
789 796
790 if (c < 0x20) 797 if (expect_false (c < 0x20))
791 if (c == C0_LF) 798 if (c == C0_LF)
792 { 799 {
793 max_it (line->l, screen.cur.col); 800 max_it (line->l, screen.cur.col);
794 801
795 screen.flags &= ~Screen_WrapNext; 802 screen.flags &= ~Screen_WrapNext;
814 { 821 {
815 scr_tab (1, true); 822 scr_tab (1, true);
816 continue; 823 continue;
817 } 824 }
818 825
826 if (expect_false (
819 if (checksel /* see if we're writing within selection */ 827 checksel /* see if we're writing within selection */
820 && !ROWCOL_IS_BEFORE (screen.cur, selection.beg) 828 && !ROWCOL_IS_BEFORE (screen.cur, selection.beg)
821 && ROWCOL_IS_BEFORE (screen.cur, selection.end)) 829 && ROWCOL_IS_BEFORE (screen.cur, selection.end)
830 ))
822 { 831 {
823 checksel = 0; 832 checksel = 0;
824 /* 833 /*
825 * If we wrote anywhere in the selected area, kill the selection 834 * If we wrote anywhere in the selected area, kill the selection
826 * XXX: should we kill the mark too? Possibly, but maybe that 835 * XXX: should we kill the mark too? Possibly, but maybe that
827 * should be a similar check. 836 * should be a similar check.
828 */ 837 */
829 CLEAR_SELECTION (); 838 CLEAR_SELECTION ();
830 } 839 }
831 840
832 if (screen.flags & Screen_WrapNext) 841 if (expect_false (screen.flags & Screen_WrapNext))
833 { 842 {
834 scr_do_wrap (); 843 scr_do_wrap ();
835 844
836 line->l = ncol; 845 line->l = ncol;
837 line->is_longer (1); 846 line->is_longer (1);
839 row = screen.cur.row; 848 row = screen.cur.row;
840 line = &ROW(row); /* _must_ refresh */ 849 line = &ROW(row); /* _must_ refresh */
841 } 850 }
842 851
843 // some utf-8 decoders "decode" surrogate characters: let's fix this. 852 // some utf-8 decoders "decode" surrogate characters: let's fix this.
844 if (IN_RANGE_INC (c, 0xd800, 0xdfff)) 853 if (expect_false (IN_RANGE_INC (c, 0xd800, 0xdfff)))
845 c = 0xfffd; 854 c = 0xfffd;
846 855
847 // rely on wcwidth to tell us the character width, do wcwidth before 856 // rely on wcwidth to tell us the character width, do wcwidth before
848 // further replacements, as wcwidth might return -1 for the line 857 // further replacements, as wcwidth might return -1 for the line
849 // drawing characters below as they might be invalid in the current 858 // drawing characters below as they might be invalid in the current
850 // locale. 859 // locale.
851 int width = WCWIDTH (c); 860 int width = WCWIDTH (c);
852 861
853 if (charsets [screen.charset] == '0') // DEC SPECIAL 862 if (expect_false (charsets [screen.charset] == '0')) // DEC SPECIAL
854 { 863 {
855 // vt100 special graphics and line drawing 864 // vt100 special graphics and line drawing
856 // 5f-7e standard vt100 865 // 5f-7e standard vt100
857 // 40-5e rxvt extension for extra curses acs chars 866 // 40-5e rxvt extension for extra curses acs chars
858 static uint16_t vt100_0[62] = { // 41 .. 7e 867 static uint16_t vt100_0[62] = { // 41 .. 7e
871 c = vt100_0[c - 0x41]; 880 c = vt100_0[c - 0x41];
872 width = 1; // vt100 line drawing characters are always single-width 881 width = 1; // vt100 line drawing characters are always single-width
873 } 882 }
874 } 883 }
875 884
876 if (screen.flags & Screen_Insert) 885 if (expect_false (screen.flags & Screen_Insert))
877 scr_insdel_chars (width, INSERT); 886 scr_insdel_chars (width, INSERT);
878 887
879 if (width != 0) 888 if (width != 0)
880 { 889 {
881#if !UNICODE_3 890#if !UNICODE_3
887 c = 0xfffd; 896 c = 0xfffd;
888# endif 897# endif
889#endif 898#endif
890 899
891 // nuke the character at this position, if required 900 // nuke the character at this position, if required
901 if (expect_false (
892 if (line->t[screen.cur.col] == NOCHAR 902 line->t[screen.cur.col] == NOCHAR
893 || (screen.cur.col < ncol - 1 903 || (screen.cur.col < ncol - 1
894 && line->t[screen.cur.col + 1] == NOCHAR)) 904 && line->t[screen.cur.col + 1] == NOCHAR)
905 ))
906 scr_kill_char (*line, screen.cur.col);
907
908 rend_t rend = SET_FONT (rstyle, FONTSET (rstyle)->find_font (c));
909
910 // if the character doesn't fit into the remaining columns...
911 if (expect_false (screen.cur.col > ncol - width && ncol >= width))
895 { 912 {
896 int col = screen.cur.col; 913 // ... artificially enlargen the previous one
897
898 // find begin
899 while (col > 0 && line->t[col] == NOCHAR)
900 col--;
901
902 rend_t rend = SET_FONT (line->r[col], FONTSET (line->r[col])->find_font (' '));
903
904 // found begin, nuke
905 do {
906 line->t[col] = ' ';
907 line->r[col] = rend;
908 col++;
909 } while (col < ncol && line->t[col] == NOCHAR);
910 }
911
912 rend_t rend = SET_FONT (rstyle, FONTSET (rstyle)->find_font (c));
913
914 // if the character doesn't fit into the remaining columns...
915 if (screen.cur.col > ncol - width && ncol >= width)
916 {
917 // ...output spaces
918 c = ' '; 914 c = NOCHAR;
919 // and try the same character next loop iteration 915 // and try the same character next loop iteration
920 --str; 916 --str;
921 } 917 }
922 918
923 line->touch (); 919 line->touch ();
925 do 921 do
926 { 922 {
927 line->t[screen.cur.col] = c; 923 line->t[screen.cur.col] = c;
928 line->r[screen.cur.col] = rend; 924 line->r[screen.cur.col] = rend;
929 925
930 if (screen.cur.col < ncol - 1) 926 if (expect_true (screen.cur.col < ncol - 1))
931 screen.cur.col++; 927 screen.cur.col++;
932 else 928 else
933 { 929 {
934 line->l = ncol; 930 line->l = ncol;
935 if (screen.flags & Screen_Autowrap) 931 if (screen.flags & Screen_Autowrap)
937 break; 933 break;
938 } 934 }
939 935
940 c = NOCHAR; 936 c = NOCHAR;
941 } 937 }
942 while (--width > 0); 938 while (expect_false (--width > 0));
943 939
944 // pad with spaces when overwriting wide character with smaller one 940 // pad with spaces when overwriting wide character with smaller one
945 if (!width) 941 if (expect_false (!width))
946 { 942 {
947 line->touch (); 943 line->touch ();
948 944
949 for (int c = screen.cur.col; c < ncol && line->t[c] == NOCHAR; c++) 945 for (int c = screen.cur.col; c < ncol && line->t[c] == NOCHAR; c++)
950 { 946 {
951 line->t[c] = ' '; 947 line->t[c] = ' ';
952 line->r[c] = rend; 948 line->r[c] = rend;
953 } 949 }
954 } 950 }
955 } 951 }
952#if ENABLE_COMBINING
956 else // width == 0 953 else // width == 0
957 { 954 {
958#if ENABLE_COMBINING 955 if (c != 0xfeff) // ignore BOM
959 // handle combining characters
960 // we just tag the accent on the previous on-screen character.
961 // this is arguably not correct, but also arguably not wrong.
962 // we don't handle double-width characters nicely yet.
963 line_t *linep;
964 text_t *tp;
965 rend_t *rp;
966
967 if (screen.cur.col > 0)
968 { 956 {
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.
961 line_t *linep;
962 text_t *tp;
963 rend_t *rp;
964
965 if (screen.cur.col > 0)
966 {
969 linep = line; 967 linep = line;
970 tp = line->t + screen.cur.col - 1; 968 tp = line->t + screen.cur.col - 1;
971 rp = line->r + screen.cur.col - 1; 969 rp = line->r + screen.cur.col - 1;
970 }
971 else if (screen.cur.row > 0
972 && ROW(screen.cur.row - 1).is_longer ())
973 {
974 linep = &ROW(screen.cur.row - 1);
975 tp = line->t + ncol - 1;
976 rp = line->r + ncol - 1;
977 }
978 else
979 continue;
980
981 linep->touch ();
982
983 while (*tp == NOCHAR && tp > linep->t)
984 tp--, rp--;
985
986 // first try to find a precomposed character
987 unicode_t n = rxvt_compose (*tp, c);
988 if (n == NOCHAR)
989 n = rxvt_composite.compose (*tp, c);
990
991 *tp = n;
992 *rp = SET_FONT (*rp, FONTSET (*rp)->find_font (*tp));
972 } 993 }
973 else if (screen.cur.row > 0
974 && ROW(screen.cur.row - 1).is_longer ())
975 {
976 linep = &ROW(screen.cur.row - 1);
977 tp = line->t + ncol - 1;
978 rp = line->r + ncol - 1;
979 } 994 }
980 else
981 continue;
982
983 linep->touch ();
984
985 while (*tp == NOCHAR && tp > linep->t)
986 tp--, rp--;
987
988 // first try to find a precomposed character
989 unicode_t n = rxvt_compose (*tp, c);
990 if (n == NOCHAR)
991 n = rxvt_composite.compose (*tp, c);
992
993 *tp = n;
994 *rp = SET_FONT (*rp, FONTSET (*rp)->find_font (*tp));
995#endif 995#endif
996 }
997 } 996 }
998 997
999 max_it (line->l, screen.cur.col); 998 max_it (line->l, screen.cur.col);
1000 999
1001#ifdef DEBUG_STRICT
1002 assert (screen.cur.row >= 0); 1000 assert (screen.cur.row >= 0);
1003#endif
1004} 1001}
1005 1002
1006/* ------------------------------------------------------------------------- */ 1003/* ------------------------------------------------------------------------- */
1007/* 1004/*
1008 * Process Backspace. Move back the cursor back a position, wrap if have to 1005 * Process Backspace. Move back the cursor back a position, wrap if have to
1225/* 1222/*
1226 * Erase part or whole of a line 1223 * Erase part or whole of a line
1227 * XTERM_SEQ: Clear line to right: ESC [ 0 K 1224 * XTERM_SEQ: Clear line to right: ESC [ 0 K
1228 * XTERM_SEQ: Clear line to left : ESC [ 1 K 1225 * XTERM_SEQ: Clear line to left : ESC [ 1 K
1229 * XTERM_SEQ: Clear whole line : ESC [ 2 K 1226 * XTERM_SEQ: Clear whole line : ESC [ 2 K
1227 * extension: clear to right unless wrapped: ESC [ 3 K
1230 */ 1228 */
1231void 1229void
1232rxvt_term::scr_erase_line (int mode) NOTHROW 1230rxvt_term::scr_erase_line (int mode) NOTHROW
1233{ 1231{
1234 unsigned int col, num; 1232 unsigned int col, num;
1243 line.touch (); 1241 line.touch ();
1244 line.is_longer (0); 1242 line.is_longer (0);
1245 1243
1246 switch (mode) 1244 switch (mode)
1247 { 1245 {
1246 case 3:
1247 if (screen.flags & Screen_WrapNext)
1248 return;
1249
1250 /* fall through */
1251
1248 case 0: /* erase to end of line */ 1252 case 0: /* erase to end of line */
1249 col = screen.cur.col; 1253 col = screen.cur.col;
1250 num = ncol - col; 1254 num = ncol - col;
1251 min_it (line.l, col); 1255 min_it (line.l, col);
1256
1252 if (ROWCOL_IN_ROW_AT_OR_AFTER (selection.beg, screen.cur) 1257 if (ROWCOL_IN_ROW_AT_OR_AFTER (selection.beg, screen.cur)
1253 || ROWCOL_IN_ROW_AT_OR_AFTER (selection.end, screen.cur)) 1258 || ROWCOL_IN_ROW_AT_OR_AFTER (selection.end, screen.cur))
1254 CLEAR_SELECTION (); 1259 CLEAR_SELECTION ();
1255 break; 1260 break;
1261
1256 case 1: /* erase to beginning of line */ 1262 case 1: /* erase to beginning of line */
1257 col = 0; 1263 col = 0;
1258 num = screen.cur.col + 1; 1264 num = screen.cur.col + 1;
1265
1259 if (ROWCOL_IN_ROW_AT_OR_BEFORE (selection.beg, screen.cur) 1266 if (ROWCOL_IN_ROW_AT_OR_BEFORE (selection.beg, screen.cur)
1260 || ROWCOL_IN_ROW_AT_OR_BEFORE (selection.end, screen.cur)) 1267 || ROWCOL_IN_ROW_AT_OR_BEFORE (selection.end, screen.cur))
1261 CLEAR_SELECTION (); 1268 CLEAR_SELECTION ();
1262 break; 1269 break;
1270
1263 case 2: /* erase whole line */ 1271 case 2: /* erase whole line */
1264 col = 0; 1272 col = 0;
1265 num = ncol; 1273 num = ncol;
1266 line.l = 0; 1274 line.l = 0;
1267 if (selection.beg.row <= screen.cur.row 1275 if (selection.beg.row <= screen.cur.row
1325 if (row >= nrow) /* Out Of Bounds */ 1333 if (row >= nrow) /* Out Of Bounds */
1326 return; 1334 return;
1327 1335
1328 min_it (num, nrow - row); 1336 min_it (num, nrow - row);
1329 1337
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.
1330 if (rstyle & (RS_RVid | RS_Uline)) 1341 if (rstyle & (RS_RVid | RS_Uline))
1331 ren = (rend_t) ~RS_None; 1342 ren = (rend_t) ~RS_None;
1332 else if (GET_BASEBG (rstyle) == Color_bg) 1343 else if (GET_BASEBG (rstyle) == Color_bg)
1333 { 1344 {
1334 ren = DEFAULT_RSTYLE; 1345 ren = DEFAULT_RSTYLE;
1335 CLEAR_ROWS (row, num); 1346
1347 if (mapped && !view_start)
1348 XClearArea (dpy, vt, 0,
1349 Row2Pixel (row - view_start), (unsigned int)width,
1350 (unsigned int)Height2Pixel (num), False);
1336 } 1351 }
1337 else 1352 else
1338 { 1353 {
1339 ren = rstyle & (RS_fgMask | RS_bgMask); 1354 ren = rstyle & (RS_fgMask | RS_bgMask);
1355
1356 if (mapped && !view_start)
1357 {
1340 gcvalue.foreground = pix_colors[bgcolor_of (rstyle)]; 1358 gcvalue.foreground = pix_colors[bgcolor_of (rstyle)];
1341 XChangeGC (dpy, gc, GCForeground, &gcvalue); 1359 XChangeGC (dpy, gc, GCForeground, &gcvalue);
1342 ERASE_ROWS (row, num); 1360 XFillRectangle (dpy, vt, gc,
1361 0, Row2Pixel (row - view_start),
1362 (unsigned int)width,
1363 (unsigned int)Height2Pixel (num));
1343 gcvalue.foreground = pix_colors[Color_fg]; 1364 gcvalue.foreground = pix_colors[Color_fg];
1344 XChangeGC (dpy, gc, GCForeground, &gcvalue); 1365 XChangeGC (dpy, gc, GCForeground, &gcvalue);
1366 }
1345 } 1367 }
1346 1368
1347 for (; num--; row++) 1369 for (; num--; row++)
1348 { 1370 {
1349 scr_blank_screen_mem (ROW(row), rstyle); 1371 scr_blank_screen_mem (ROW(row), rstyle);
1372
1373 if (!view_start)
1350 scr_blank_line (drawn_buf [row], 0, ncol, ren); 1374 scr_blank_line (drawn_buf [row], 0, ncol, ren);
1351 } 1375 }
1352} 1376}
1353 1377
1354#if !ENABLE_MINIMAL 1378#if !ENABLE_MINIMAL
1355void 1379void
1429 * Insert/Delete <count> characters from the current position 1453 * Insert/Delete <count> characters from the current position
1430 */ 1454 */
1431void 1455void
1432rxvt_term::scr_insdel_chars (int count, int insdel) NOTHROW 1456rxvt_term::scr_insdel_chars (int count, int insdel) NOTHROW
1433{ 1457{
1434 int col, row;
1435 rend_t tr;
1436
1437 want_refresh = 1; 1458 want_refresh = 1;
1438 ZERO_SCROLLBACK (); 1459 ZERO_SCROLLBACK ();
1439 1460
1440 if (count <= 0) 1461 if (count <= 0)
1441 return; 1462 return;
1443 scr_do_wrap (); 1464 scr_do_wrap ();
1444 1465
1445 selection_check (1); 1466 selection_check (1);
1446 min_it (count, ncol - screen.cur.col); 1467 min_it (count, ncol - screen.cur.col);
1447 1468
1448 row = screen.cur.row; 1469 int row = screen.cur.row;
1449 1470
1450 line_t *line = &ROW(row); 1471 line_t *line = &ROW(row);
1451 1472
1452 line->touch (); 1473 line->touch ();
1453 line->is_longer (0); 1474 line->is_longer (0);
1454 1475
1476 // nuke wide spanning the start
1477 if (line->t[screen.cur.col] == NOCHAR)
1478 scr_kill_char (*line, screen.cur.col);
1479
1455 switch (insdel) 1480 switch (insdel)
1456 { 1481 {
1457 case INSERT: 1482 case INSERT:
1458 for (col = ncol - 1; (col - count) >= screen.cur.col; col--) 1483 line->l = min (line->l + count, ncol);
1484
1485 if (line->t[screen.cur.col] == NOCHAR)
1486 scr_kill_char (*line, screen.cur.col);
1487
1488 for (int col = ncol - 1; (col - count) >= screen.cur.col; col--)
1459 { 1489 {
1460 line->t[col] = line->t[col - count]; 1490 line->t[col] = line->t[col - count];
1461 line->r[col] = line->r[col - count]; 1491 line->r[col] = line->r[col - count];
1462 } 1492 }
1463
1464 line->l = min (line->l + count, ncol);
1465 1493
1466 if (selection.op && current_screen == selection.screen 1494 if (selection.op && current_screen == selection.screen
1467 && ROWCOL_IN_ROW_AT_OR_AFTER (selection.beg, screen.cur)) 1495 && ROWCOL_IN_ROW_AT_OR_AFTER (selection.beg, screen.cur))
1468 { 1496 {
1469 if (selection.end.row != screen.cur.row 1497 if (selection.end.row != screen.cur.row
1484 case ERASE: 1512 case ERASE:
1485 screen.cur.col += count; /* don't worry if > ncol */ 1513 screen.cur.col += count; /* don't worry if > ncol */
1486 selection_check (1); 1514 selection_check (1);
1487 screen.cur.col -= count; 1515 screen.cur.col -= count;
1488 1516
1489 line->l = max (line->l - count, 0); 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);
1520
1490 scr_blank_line (*line, screen.cur.col, count, rstyle); 1521 scr_blank_line (*line, screen.cur.col, count, rstyle);
1491 break; 1522 break;
1492 1523
1493 case DELETE: 1524 case DELETE:
1494 tr = line->r[ncol - 1] & (RS_fgMask | RS_bgMask | RS_baseattrMask); 1525 line->l = max (line->l - count, 0);
1495 1526
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);
1530
1496 for (col = screen.cur.col; (col + count) < ncol; col++) 1531 for (int col = screen.cur.col; (col + count) < ncol; col++)
1497 { 1532 {
1498 line->t[col] = line->t[col + count]; 1533 line->t[col] = line->t[col + count];
1499 line->r[col] = line->r[col + count]; 1534 line->r[col] = line->r[col + count];
1500 } 1535 }
1501 1536
1502 line->l = max (line->l - count, 0);
1503 scr_blank_line (*line, ncol - count, count, tr); 1537 scr_blank_line (*line, ncol - count, count, rstyle);
1504 1538
1505 if (selection.op && current_screen == selection.screen 1539 if (selection.op && current_screen == selection.screen
1506 && ROWCOL_IN_ROW_AT_OR_AFTER (selection.beg, screen.cur)) 1540 && ROWCOL_IN_ROW_AT_OR_AFTER (selection.beg, screen.cur))
1507 { 1541 {
1508 if (selection.end.row != screen.cur.row 1542 if (selection.end.row != screen.cur.row
1886 XMapWindow (dpy, parent[0]); 1920 XMapWindow (dpy, parent[0]);
1887# endif 1921# endif
1888 1922
1889# if ENABLE_FRILLS 1923# if ENABLE_FRILLS
1890 if (option (Opt_urgentOnBell)) 1924 if (option (Opt_urgentOnBell))
1891 { 1925 set_urgency (1);
1892 if (XWMHints *h = XGetWMHints(dpy, parent[0]))
1893 {
1894 h->flags |= XUrgencyHint;
1895 XSetWMHints (dpy, parent[0], h);
1896 }
1897 }
1898# endif 1926# endif
1899 1927
1900 if (option (Opt_visualBell)) 1928 if (option (Opt_visualBell))
1901 { 1929 {
1902 rvideo_bell = true; 1930 rvideo_bell = true;
1915void 1943void
1916rxvt_term::scr_printscreen (int fullhist) NOTHROW 1944rxvt_term::scr_printscreen (int fullhist) NOTHROW
1917{ 1945{
1918#ifdef PRINTPIPE 1946#ifdef PRINTPIPE
1919 int nrows, row_start; 1947 int nrows, row_start;
1920 FILE *fd; 1948 FILE *fd = popen_printer ();
1921 1949
1922 if ((fd = popen_printer ()) == NULL) 1950 if (!fd)
1923 return; 1951 return;
1924 1952
1925 if (fullhist) 1953 if (fullhist)
1926 { 1954 {
1927 nrows = nrow - top_row; 1955 nrows = nrow - top_row;
1933 row_start = view_start; 1961 row_start = view_start;
1934 } 1962 }
1935 1963
1936 wctomb (0, 0); 1964 wctomb (0, 0);
1937 1965
1938 for (int r1 = 0; r1 < nrows; r1++) 1966 for (int r1 = row_start; r1 < row_start + nrows; r1++)
1939 { 1967 {
1940 text_t *tp = ROW(r1).t; 1968 text_t *tp = ROW(r1).t;
1941 int len = ROW(r1).l; 1969 int len = ROW(r1).l;
1942 1970
1943 for (int i = len >= 0 ? len : ncol - 1; i--; ) //TODO//FIXME//LEN 1971 for (int i = len >= 0 ? len : ncol - 1; i--; ) //TODO//FIXME//LEN
1972 * screen.text/screen.rend contain what the screen will change to. 2000 * screen.text/screen.rend contain what the screen will change to.
1973 */ 2001 */
1974void 2002void
1975rxvt_term::scr_refresh () NOTHROW 2003rxvt_term::scr_refresh () NOTHROW
1976{ 2004{
1977 unsigned char have_bg,
1978 showcursor; /* show the cursor */
1979 int16_t col, row, /* column/row we're processing */ 2005 int16_t col, row, /* column/row we're processing */
1980 ocrow; /* old cursor row */ 2006 ocrow; /* old cursor row */
1981 int i; /* tmp */ 2007 int i; /* tmp */
1982#ifndef NO_CURSORCOLOR 2008#ifndef NO_CURSORCOLOR
1983 rend_t cc1; /* store colours at cursor position (s) */ 2009 rend_t cc1; /* store colours at cursor position (s) */
1992 return; 2018 return;
1993 2019
1994 /* 2020 /*
1995 * A: set up vars 2021 * A: set up vars
1996 */ 2022 */
1997 have_bg = 0;
1998 refresh_count = 0; 2023 refresh_count = 0;
1999 2024
2025 unsigned int old_screen_flags = screen.flags;
2026 char have_bg = 0;
2000#ifdef HAVE_BG_PIXMAP 2027#ifdef HAVE_BG_PIXMAP
2001 have_bg |= bgPixmap.pixmap != None; 2028 have_bg = bgPixmap.pixmap != None;
2002#endif 2029#endif
2003 ocrow = oldcursor.row; /* is there an old outline cursor on screen? */ 2030 ocrow = oldcursor.row; /* is there an old outline cursor on screen? */
2004 2031
2005 /* 2032 /*
2006 * B: reverse any characters which are selected 2033 * B: reverse any characters which are selected
2007 */ 2034 */
2008 scr_reverse_selection (); 2035 scr_reverse_selection ();
2036
2037 HOOK_INVOKE ((this, HOOK_REFRESH_BEGIN, DT_END));
2038#if ENABLE_OVERLAY
2039 scr_swap_overlay ();
2040#endif
2041
2042 char showcursor = screen.flags & Screen_VisibleCursor;
2009 2043
2010 /* 2044 /*
2011 * C: set the cursor character (s) 2045 * C: set the cursor character (s)
2012 */ 2046 */
2013 { 2047 {
2014 unsigned char setoldcursor; 2048 unsigned char setoldcursor;
2015 2049
2016 showcursor = (screen.flags & Screen_VisibleCursor);
2017#ifdef CURSOR_BLINK 2050#ifdef CURSOR_BLINK
2018 if (hidden_cursor) 2051 if (hidden_cursor)
2019 showcursor = 0; 2052 showcursor = 0;
2020#endif 2053#endif
2021 2054
2094 oldcursor.col = screen.cur.col; 2127 oldcursor.col = screen.cur.col;
2095 } 2128 }
2096 } 2129 }
2097 } 2130 }
2098 2131
2099 HOOK_INVOKE ((this, HOOK_REFRESH_BEGIN, DT_END));
2100#if ENABLE_OVERLAY
2101 scr_swap_overlay ();
2102#endif
2103
2104#ifndef NO_SLOW_LINK_SUPPORT 2132#ifndef NO_SLOW_LINK_SUPPORT
2105 /* 2133 /*
2106 * D: CopyArea pass - very useful for slower links 2134 * D: CopyArea pass - very useful for slower links
2107 * This has been deliberately kept simple. 2135 * This has been deliberately kept simple.
2108 */ 2136 */
2197 continue; 2225 continue;
2198 2226
2199 // redraw one or more characters 2227 // redraw one or more characters
2200 2228
2201 // seek to the beginning of wide characters 2229 // seek to the beginning of wide characters
2202 while (stp[col] == NOCHAR && col > 0) 2230 while (expect_false (stp[col] == NOCHAR && col > 0))
2203 --col; 2231 --col;
2204 2232
2205 rend_t rend = srp[col]; /* screen rendition (target rendtion) */ 2233 rend_t rend = srp[col]; /* screen rendition (target rendtion) */
2206 text_t *text = stp + col; 2234 text_t *text = stp + col;
2207 int count = 1; 2235 int count = 1;
2214 for (i = 0; ++col < ncol; ) 2242 for (i = 0; ++col < ncol; )
2215 { 2243 {
2216 if (stp[col] == NOCHAR) 2244 if (stp[col] == NOCHAR)
2217 { 2245 {
2218 dtp[col] = stp[col]; 2246 dtp[col] = stp[col];
2219 drp[col] = rend; 2247 drp[col] = srp[col];
2248
2220 count++; 2249 count++;
2221 i++; 2250 i++;
2222 2251
2223 continue; 2252 continue;
2224 } 2253 }
2244 2273
2245 col--; /* went one too far. move back */ 2274 col--; /* went one too far. move back */
2246 count -= i; /* dump any matching trailing chars */ 2275 count -= i; /* dump any matching trailing chars */
2247 2276
2248 // sometimes we optimize away the trailing NOCHAR's, add them back 2277 // sometimes we optimize away the trailing NOCHAR's, add them back
2249 while (i && text[count] == NOCHAR) 2278 while (expect_false (i && text[count] == NOCHAR))
2250 count++, i--; 2279 count++, i--;
2251 2280
2252 /* 2281 /*
2253 * Determine the attributes for the string 2282 * Determine the attributes for the string
2254 */ 2283 */
2255 int fore = fgcolor_of (rend); // desired foreground 2284 int fore = fgcolor_of (rend); // desired foreground
2256 int back = bgcolor_of (rend); // desired background 2285 int back = bgcolor_of (rend); // desired background
2257 2286
2258 // only do special processing if any attributes are set, which is unlikely 2287 // only do special processing if any attributes are set, which is unlikely
2259 if (rend & (RS_Bold | RS_Italic | RS_Uline | RS_RVid | RS_Blink | RS_Careful)) 2288 if (expect_false (rend & (RS_Bold | RS_Italic | RS_Uline | RS_RVid | RS_Blink | RS_Careful)))
2260 { 2289 {
2261 bool invert = rend & RS_RVid; 2290 bool invert = rend & RS_RVid;
2262 2291
2263#ifndef NO_BOLD_UNDERLINE_REVERSE 2292#ifndef NO_BOLD_UNDERLINE_REVERSE
2264 if (rend & RS_Bold && fore == Color_fg) 2293 if (rend & RS_Bold && fore == Color_fg)
2347 /* 2376 /*
2348 * Actually do the drawing of the string here 2377 * Actually do the drawing of the string here
2349 */ 2378 */
2350 rxvt_font *font = (*fontset[GET_STYLE (rend)])[GET_FONT (rend)]; 2379 rxvt_font *font = (*fontset[GET_STYLE (rend)])[GET_FONT (rend)];
2351 2380
2352 if (have_bg && back == Color_bg) 2381 if (expect_true (have_bg && back == Color_bg))
2353 { 2382 {
2354 // this is very ugly, maybe push it into ->draw? 2383 // this is very ugly, maybe push it into ->draw?
2355 2384
2356 for (i = 0; i < count; i++) /* don't draw empty strings */ 2385 for (i = 0; i < count; i++) /* don't draw empty strings */
2357 if (text[i] != ' ') 2386 if (text[i] != ' ')
2364 did_clear: ; 2393 did_clear: ;
2365 } 2394 }
2366 else 2395 else
2367 font->draw (*drawable, xpixel, ypixel, text, count, fore, back); 2396 font->draw (*drawable, xpixel, ypixel, text, count, fore, back);
2368 2397
2369 if (rend & RS_Uline && font->descent > 1 && fore != back) 2398 if (expect_false (rend & RS_Uline && font->descent > 1 && fore != back))
2370 { 2399 {
2371#if ENABLE_FRILLS 2400#if ENABLE_FRILLS
2372 if (ISSET_PIXCOLOR (Color_underline)) 2401 if (ISSET_PIXCOLOR (Color_underline))
2373 XSetForeground (dpy, gc, pix_colors[Color_underline]); 2402 XSetForeground (dpy, gc, pix_colors[Color_underline]);
2374 else 2403 else
2379 xpixel, ypixel + font->ascent + 1, 2408 xpixel, ypixel + font->ascent + 1,
2380 xpixel + Width2Pixel (count) - 1, ypixel + font->ascent + 1); 2409 xpixel + Width2Pixel (count) - 1, ypixel + font->ascent + 1);
2381 } 2410 }
2382 } /* for (col....) */ 2411 } /* for (col....) */
2383 } /* for (row....) */ 2412 } /* for (row....) */
2384
2385#if ENABLE_OVERLAY
2386 scr_swap_overlay ();
2387#endif
2388 HOOK_INVOKE ((this, HOOK_REFRESH_END, DT_END));
2389 2413
2390 /* 2414 /*
2391 * G: cleanup cursor and display outline cursor if necessary 2415 * G: cleanup cursor and display outline cursor if necessary
2392 */ 2416 */
2393 if (showcursor) 2417 if (showcursor)
2432 } 2456 }
2433 2457
2434 /* 2458 /*
2435 * H: cleanup selection 2459 * H: cleanup selection
2436 */ 2460 */
2461#if ENABLE_OVERLAY
2462 scr_swap_overlay ();
2463#endif
2464 HOOK_INVOKE ((this, HOOK_REFRESH_END, DT_END));
2465
2437 scr_reverse_selection (); 2466 scr_reverse_selection ();
2438 2467
2468 screen.flags = old_screen_flags;
2439 num_scr = 0; 2469 num_scr = 0;
2440 num_scr_allow = 1; 2470 num_scr_allow = 1;
2441} 2471}
2442 2472
2443void 2473void
2478 2508
2479 if (scrollBar.win) 2509 if (scrollBar.win)
2480 { 2510 {
2481 XSetWindowBackground (dpy, scrollBar.win, pix_colors[Color_border]); 2511 XSetWindowBackground (dpy, scrollBar.win, pix_colors[Color_border]);
2482 scrollBar.state = STATE_IDLE; 2512 scrollBar.state = STATE_IDLE;
2483 scrollbar_show (0); 2513 scrollBar.show (0);
2484 } 2514 }
2485 2515
2486#endif 2516#endif
2487 2517
2488 /* bgPixmap.apply () does not do the following : */ 2518 /* bgPixmap.apply () does not do the following : */
2585{ 2615{
2586 int row, wrote; 2616 int row, wrote;
2587 unsigned int width, towrite; 2617 unsigned int width, towrite;
2588 char r1[] = "\n"; 2618 char r1[] = "\n";
2589 2619
2590 for (row = saveLines - nsaved; 2620 for (row = saveLines + top_row;
2591 row < saveLines + nrow - 1; row++) 2621 row < saveLines + nrow - 1; row++)
2592 { 2622 {
2593 width = row_buf[row].l >= 0 ? row_buf[row].l 2623 width = row_buf[row].l >= 0 ? row_buf[row].l
2594 : ncol; 2624 : ncol;
2595 for (towrite = width; towrite; towrite -= wrote) 2625 for (towrite = width; towrite; towrite -= wrote)
3702 h += 2; min_it (h, nrow); 3732 h += 2; min_it (h, nrow);
3703 3733
3704 x -= 1; clamp_it (x, 0, ncol - w); 3734 x -= 1; clamp_it (x, 0, ncol - w);
3705 y -= 1; clamp_it (y, 0, nrow - h); 3735 y -= 1; clamp_it (y, 0, nrow - h);
3706 3736
3707 ov_x = x; ov_y = y; 3737 ov.x = x; ov.y = y;
3708 ov_w = w; ov_h = h; 3738 ov.w = w; ov.h = h;
3709 3739
3710 ov_text = new text_t *[h]; 3740 ov.text = new text_t *[h];
3711 ov_rend = new rend_t *[h]; 3741 ov.rend = new rend_t *[h];
3712 3742
3713 for (y = 0; y < h; y++) 3743 for (y = 0; y < h; y++)
3714 { 3744 {
3715 text_t *tp = ov_text[y] = new text_t[w]; 3745 text_t *tp = ov.text[y] = new text_t[w];
3716 rend_t *rp = ov_rend[y] = new rend_t[w]; 3746 rend_t *rp = ov.rend[y] = new rend_t[w];
3717 3747
3718 text_t t0, t1, t2; 3748 text_t t0, t1, t2;
3719 rend_t r = OVERLAY_RSTYLE; 3749 rend_t r = OVERLAY_RSTYLE;
3720 3750
3721 if (y == 0) 3751 if (y == 0)
3740} 3770}
3741 3771
3742void 3772void
3743rxvt_term::scr_overlay_off () NOTHROW 3773rxvt_term::scr_overlay_off () NOTHROW
3744{ 3774{
3745 if (!ov_text) 3775 if (!ov.text)
3746 return; 3776 return;
3747 3777
3748 want_refresh = 1; 3778 want_refresh = 1;
3749 3779
3750 for (int y = 0; y < ov_h; y++) 3780 for (int y = 0; y < ov.h; y++)
3751 { 3781 {
3752 delete [] ov_text[y]; 3782 delete [] ov.text[y];
3753 delete [] ov_rend[y]; 3783 delete [] ov.rend[y];
3754 } 3784 }
3755 3785
3756 delete [] ov_text; ov_text = 0; 3786 delete [] ov.text; ov.text = 0;
3757 delete [] ov_rend; ov_rend = 0; 3787 delete [] ov.rend; ov.rend = 0;
3758} 3788}
3759 3789
3760void 3790void
3761rxvt_term::scr_overlay_set (int x, int y, text_t text, rend_t rend) NOTHROW 3791rxvt_term::scr_overlay_set (int x, int y, text_t text, rend_t rend) NOTHROW
3762{ 3792{
3763 if (!ov_text || x >= ov_w - 2 || y >= ov_h - 2) 3793 if (!ov.text || x >= ov.w - 2 || y >= ov.h - 2)
3764 return; 3794 return;
3765 3795
3766 x++, y++; 3796 x++, y++;
3767 3797
3768 ov_text[y][x] = text; 3798 ov.text[y][x] = text;
3769 ov_rend[y][x] = rend; 3799 ov.rend[y][x] = rend;
3770} 3800}
3771 3801
3772void 3802void
3773rxvt_term::scr_overlay_set (int x, int y, const char *s) NOTHROW 3803rxvt_term::scr_overlay_set (int x, int y, const char *s) NOTHROW
3774{ 3804{
3793} 3823}
3794 3824
3795void 3825void
3796rxvt_term::scr_swap_overlay () NOTHROW 3826rxvt_term::scr_swap_overlay () NOTHROW
3797{ 3827{
3798 if (!ov_text) 3828 if (!ov.text)
3799 return; 3829 return;
3800 3830
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;
3835
3801 // swap screen mem with overlay 3836 // swap screen mem with overlay
3802 for (int y = ov_h; y--; ) 3837 for (int y = ov.h; y--; )
3803 { 3838 {
3804 text_t *t1 = ov_text[y]; 3839 text_t *t1 = ov.text[y];
3805 rend_t *r1 = ov_rend[y]; 3840 rend_t *r1 = ov.rend[y];
3806 3841
3807 text_t *t2 = ROW(y + ov_y + view_start).t + ov_x; 3842 text_t *t2 = ROW(y + ov.y + view_start).t + ov.x;
3808 rend_t *r2 = ROW(y + ov_y + view_start).r + ov_x; 3843 rend_t *r2 = ROW(y + ov.y + view_start).r + ov.x;
3809 3844
3810 for (int x = ov_w; x--; ) 3845 for (int x = ov.w; x--; )
3811 { 3846 {
3812 text_t t = *t1; *t1++ = *t2; *t2++ = t; 3847 text_t t = *t1; *t1++ = *t2; *t2++ = t;
3813 rend_t r = *r1; *r1++ = *r2; *r2++ = SET_FONT (r, FONTSET (r)->find_font (t)); 3848 rend_t r = *r1; *r1++ = *r2; *r2++ = SET_FONT (r, FONTSET (r)->find_font (t));
3814 } 3849 }
3815 } 3850 }

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