diff options
Diffstat (limited to 'contrib/ncurses/ncurses/tty/tty_update.c')
| -rw-r--r-- | contrib/ncurses/ncurses/tty/tty_update.c | 639 |
1 files changed, 391 insertions, 248 deletions
diff --git a/contrib/ncurses/ncurses/tty/tty_update.c b/contrib/ncurses/ncurses/tty/tty_update.c index e06de1b..6926b56 100644 --- a/contrib/ncurses/ncurses/tty/tty_update.c +++ b/contrib/ncurses/ncurses/tty/tty_update.c @@ -1,5 +1,5 @@ /**************************************************************************** - * Copyright (c) 1998,1999,2000,2001,2002 Free Software Foundation, Inc. * + * Copyright (c) 1998-2005,2006 Free Software Foundation, Inc. * * * * Permission is hereby granted, free of charge, to any person obtaining a * * copy of this software and associated documentation files (the * @@ -29,15 +29,16 @@ /**************************************************************************** * Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995 * * and: Eric S. Raymond <esr@snark.thyrsus.com> * + * and: Thomas E. Dickey 1996-on * ****************************************************************************/ /*----------------------------------------------------------------- * * lib_doupdate.c * - * The routine doupdate() and its dependents. Also _nc_outstr(), - * so all physical output is concentrated here (except _nc_outch() - * in lib_tputs.c). + * The routine doupdate() and its dependents. + * All physical output is concentrated here (except _nc_outch() + * in lib_tputs.c). * *-----------------------------------------------------------------*/ @@ -70,9 +71,10 @@ #endif #endif +#include <ctype.h> #include <term.h> -MODULE_ID("$Id: tty_update.c,v 1.174 2002/04/21 21:04:16 tom Exp $") +MODULE_ID("$Id: tty_update.c,v 1.238 2006/11/25 22:33:21 tom Exp $") /* * This define controls the line-breakout optimization. Every once in a @@ -87,6 +89,9 @@ MODULE_ID("$Id: tty_update.c,v 1.174 2002/04/21 21:04:16 tom Exp $") #define FILL_BCE() (SP->_coloron && !SP->_default_color && !back_color_erase) +static const NCURSES_CH_T blankchar = NewChar(BLANK_TEXT); +static NCURSES_CH_T normal = NewChar(BLANK_TEXT); + /* * Enable checking to see if doupdate and friends are tracking the true * cursor position correctly. NOTE: this is a debugging hack which will @@ -94,7 +99,7 @@ MODULE_ID("$Id: tty_update.c,v 1.174 2002/04/21 21:04:16 tom Exp $") */ /* #define POSITION_DEBUG */ -static inline NCURSES_CH_T ClrBlank(WINDOW *win); +static NCURSES_INLINE NCURSES_CH_T ClrBlank(WINDOW *win); static int ClrBottom(int total); static void ClearScreen(NCURSES_CH_T blank); static void ClrUpdate(void); @@ -162,64 +167,131 @@ position_check(int expected_y, int expected_x, char *legend) * ****************************************************************************/ -static inline void +static NCURSES_INLINE void GoTo(int const row, int const col) { - attr_t oldattr = SP->_current_attr; - TR(TRACE_MOVE, ("GoTo(%d, %d) from (%d, %d)", row, col, SP->_cursrow, SP->_curscol)); position_check(SP->_cursrow, SP->_curscol, "GoTo"); - /* - * Force restore even if msgr is on when we're in an alternate - * character set -- these have a strong tendency to screw up the - * CR & LF used for local character motions! - */ - if ((oldattr & A_ALTCHARSET) - || (oldattr && !move_standout_mode)) { - TR(TRACE_CHARPUT, ("turning off (%#lx) %s before move", - oldattr, _traceattr(oldattr))); - vidattr(A_NORMAL); - } - mvcur(SP->_cursrow, SP->_curscol, row, col); - SP->_cursrow = row; - SP->_curscol = col; position_check(SP->_cursrow, SP->_curscol, "GoTo2"); } -static inline void +static NCURSES_INLINE void PutAttrChar(CARG_CH_T ch) { + int chlen = 1; + NCURSES_CH_T my_ch; PUTC_DATA; NCURSES_CH_T tilde; + NCURSES_CH_T attr = CHDEREF(ch); + TR(TRACE_CHARPUT, ("PutAttrChar(%s) at (%d, %d)", + _tracech_t(ch), + SP->_cursrow, SP->_curscol)); +#if USE_WIDEC_SUPPORT + /* + * If this is not a valid character, there is nothing more to do. + */ + if (isWidecExt(CHDEREF(ch))) { + TR(TRACE_CHARPUT, ("...skip")); + return; + } + /* + * Determine the number of character cells which the 'ch' value will use + * on the screen. It should be at least one. + */ + if ((chlen = wcwidth(CharOf(CHDEREF(ch)))) <= 0) { + static const NCURSES_CH_T blank = NewChar(BLANK_TEXT); + + /* + * If the character falls into any of these special cases, do + * not force the result to a blank: + * + * a) it is printable (this works around a bug in wcwidth()). + * b) use_legacy_coding() has been called to modify the treatment + * of codes 128-255. + * c) the acs_map[] has been initialized to allow codes 0-31 + * to be rendered. This supports Linux console's "PC" + * characters. Codes 128-255 are allowed though this is + * not checked. + */ + if (is8bits(CharOf(CHDEREF(ch))) + && (isprint(CharOf(CHDEREF(ch))) + || (SP->_legacy_coding > 0 && CharOf(CHDEREF(ch)) >= 160) + || (SP->_legacy_coding > 1 && CharOf(CHDEREF(ch)) >= 128) + || (AttrOf(attr) & A_ALTCHARSET + && ((CharOfD(ch) < ACS_LEN + && SP->_acs_map != 0 + && SP->_acs_map[CharOfD(ch)] != 0) + || (CharOfD(ch) >= 128))))) { + ; + } else { + ch = CHREF(blank); + TR(TRACE_CHARPUT, ("forced to blank")); + } + chlen = 1; + } +#endif + + if ((AttrOf(attr) & A_ALTCHARSET) + && SP->_acs_map != 0 + && CharOfD(ch) < ACS_LEN) { + my_ch = CHDEREF(ch); /* work around const param */ +#if USE_WIDEC_SUPPORT + /* + * This is crude & ugly, but works most of the time. It checks if the + * acs_chars string specified that we have a mapping for this + * character, and uses the wide-character mapping when we expect the + * normal one to be broken (by mis-design ;-). + */ + if (SP->_screen_acs_fix + && SP->_screen_acs_map[CharOf(my_ch)]) { + RemAttr(attr, A_ALTCHARSET); + my_ch = _nc_wacs[CharOf(my_ch)]; + } +#endif + /* + * If we (still) have alternate character set, it is the normal 8bit + * flavor. The _screen_acs_map[] array tells if the character was + * really in acs_chars, needed because of the way wide/normal line + * drawing flavors are integrated. + */ + if (AttrOf(attr) & A_ALTCHARSET) { + int j = CharOfD(ch); + chtype temp = UChar(SP->_acs_map[j]); + + if (!(SP->_screen_acs_map[j])) { + RemAttr(attr, A_ALTCHARSET); + if (temp == 0) + temp = ' '; + } + if (temp != 0) + SetChar(my_ch, temp, AttrOf(attr)); + } + ch = CHREF(my_ch); + } if (tilde_glitch && (CharOfD(ch) == L('~'))) { - SetChar(tilde, L('`'), AttrOfD(ch)); + SetChar(tilde, L('`'), AttrOf(attr)); ch = CHREF(tilde); } - TR(TRACE_CHARPUT, ("PutAttrChar(%s) at (%d, %d)", - _tracech_t(ch), - SP->_cursrow, SP->_curscol)); - UpdateAttrs(AttrOfD(ch)); + UpdateAttrs(attr); #if !USE_WIDEC_SUPPORT /* FIXME - we do this special case for signal handling, should see how to * make it work for wide characters. */ if (SP->_outch != 0) { - SP->_outch(ch); + SP->_outch(UChar(ch)); } else #endif { PUTC(CHDEREF(ch), SP->_ofp); /* macro's fastest... */ -#ifdef TRACE - _nc_outchars++; -#endif /* TRACE */ + TRACE_OUTCHARS(1); } - SP->_curscol++; + SP->_curscol += chlen; if (char_padding) { TPUTS_TRACE("char_padding"); putp(char_padding); @@ -311,38 +383,48 @@ PutCharLR(const ARG_CH_T ch) } } +/* + * Wrap the cursor position, i.e., advance to the beginning of the next line. + */ static void wrap_cursor(void) { if (eat_newline_glitch) { /* - * xenl can manifest two different ways. The vt100 - * way is that, when you'd expect the cursor to wrap, - * it stays hung at the right margin (on top of the - * character just emitted) and doesn't wrap until the - * *next* graphic char is emitted. The c100 way is - * to ignore LF received just after an am wrap. + * xenl can manifest two different ways. The vt100 way is that, when + * you'd expect the cursor to wrap, it stays hung at the right margin + * (on top of the character just emitted) and doesn't wrap until the + * *next* graphic char is emitted. The c100 way is to ignore LF + * received just after an am wrap. * - * An aggressive way to handle this would be to - * emit CR/LF after the char and then assume the wrap - * is done, you're on the first position of the next - * line, and the terminal out of its weird state. - * Here it's safe to just tell the code that the - * cursor is in hyperspace and let the next mvcur() - * call straighten things out. + * An aggressive way to handle this would be to emit CR/LF after the + * char and then assume the wrap is done, you're on the first position + * of the next line, and the terminal out of its weird state. Here + * it's safe to just tell the code that the cursor is in hyperspace and + * let the next mvcur() call straighten things out. */ SP->_curscol = -1; SP->_cursrow = -1; } else if (auto_right_margin) { SP->_curscol = 0; SP->_cursrow++; + /* + * We've actually moved - but may have to work around problems with + * video attributes not working. + */ + if (!move_standout_mode && AttrOf(SCREEN_ATTRS(SP))) { + TR(TRACE_CHARPUT, ("turning off (%#lx) %s before wrapping", + (unsigned long) AttrOf(SCREEN_ATTRS(SP)), + _traceattr(AttrOf(SCREEN_ATTRS(SP))))); + (void) VIDATTR(A_NORMAL, 0); + } } else { SP->_curscol--; } position_check(SP->_cursrow, SP->_curscol, "wrap_cursor"); } -static inline void +static NCURSES_INLINE void PutChar(const ARG_CH_T ch) /* insert character, handling automargin stuff */ { @@ -363,18 +445,20 @@ PutChar(const ARG_CH_T ch) * as A_REVERSE. All attribute flags which don't affect appearance of a space * or can be output by clearing (A_COLOR in case of bce-terminal) are excluded. */ -static inline bool +static NCURSES_INLINE bool can_clear_with(ARG_CH_T ch) { if (!back_color_erase && SP->_coloron) { #if NCURSES_EXT_FUNCS + int pair; + if (!SP->_default_color) return FALSE; if (SP->_default_fg != C_MASK || SP->_default_bg != C_MASK) return FALSE; - if (AttrOfD(ch) & A_COLOR) { + if ((pair = GetPair(CHDEREF(ch))) != 0) { short fg, bg; - pair_content(PAIR_NUMBER(AttrOfD(ch)), &fg, &bg); + pair_content(pair, &fg, &bg); if (fg != C_MASK || bg != C_MASK) return FALSE; } @@ -404,6 +488,8 @@ EmitRange(const NCURSES_CH_T * ntext, int num) { int i; + TR(TRACE_CHARPUT, ("EmitRange %d:%s", num, _nc_viscbuf(ntext, num))); + if (erase_chars || repeat_char) { while (num > 0) { int runcount; @@ -435,8 +521,8 @@ EmitRange(const NCURSES_CH_T * ntext, int num) if (erase_chars && runcount > SP->_ech_cost + SP->_cup_ch_cost && can_clear_with(CHREF(ntext0))) { - UpdateAttrs(AttrOf(ntext0)); - putp(tparm(erase_chars, runcount)); + UpdateAttrs(ntext0); + putp(TPARM_1(erase_chars, runcount)); /* * If this is the last part of the given interval, @@ -455,8 +541,9 @@ EmitRange(const NCURSES_CH_T * ntext, int num) if (wrap_possible) rep_count--; - UpdateAttrs(AttrOf(ntext0)); - putp(tparm(repeat_char, CharOf(ntext0), rep_count)); + UpdateAttrs(ntext0); + tputs(TPARM_2(repeat_char, CharOf(ntext0), rep_count), + rep_count, _nc_outch); SP->_curscol += rep_count; if (wrap_possible) @@ -485,33 +572,37 @@ EmitRange(const NCURSES_CH_T * ntext, int num) * Returns: same as EmitRange */ static int -PutRange( - const NCURSES_CH_T * otext, - const NCURSES_CH_T * ntext, - int row, - int first, int last) +PutRange(const NCURSES_CH_T * otext, + const NCURSES_CH_T * ntext, + int row, + int first, int last) { - int j, run; + int i, j, same; TR(TRACE_CHARPUT, ("PutRange(%p, %p, %d, %d, %d)", otext, ntext, row, first, last)); if (otext != ntext && (last - first + 1) > SP->_inline_cost) { - for (j = first, run = 0; j <= last; j++) { - if (!run && isnac(otext[j])) + for (j = first, same = 0; j <= last; j++) { + if (!same && isWidecExt(otext[j])) continue; if (CharEq(otext[j], ntext[j])) { - run++; + same++; } else { - if (run > SP->_inline_cost) { - int before_run = (j - run); - EmitRange(ntext + first, before_run - first); + if (same > SP->_inline_cost) { + EmitRange(ntext + first, j - same - first); GoTo(row, first = j); } - run = 0; + same = 0; } } + i = EmitRange(ntext + first, j - same - first); + /* + * Always return 1 for the next GoTo() after a PutRange() if we found + * identical characters at end of interval + */ + return (same == 0 ? i : 1); } return EmitRange(ntext + first, last - first + 1); } @@ -580,17 +671,15 @@ doupdate(void) #endif /* USE_TRACE_TIMES */ /* - * This is the support for magic-cookie terminals. The - * theory: we scan the virtual screen looking for attribute - * turnons. Where we find one, check to make sure it's - * realizable by seeing if the required number of - * un-attributed blanks are present before and after the - * attributed range; try to shift the range boundaries over - * blanks (not changing the screen display) so this becomes - * true. If it is, shift the beginning attribute change - * appropriately (the end one, if we've gotten this far, is - * guaranteed room for its cookie). If not, nuke the added - * attributes out of the span. + * This is the support for magic-cookie terminals. The theory: we scan + * the virtual screen looking for attribute turnons. Where we find one, + * check to make sure it's realizable by seeing if the required number of + * un-attributed blanks are present before and after the attributed range; + * try to shift the range boundaries over blanks (not changing the screen + * display) so this becomes true. If it is, shift the beginning attribute + * change appropriately (the end one, if we've gotten this far, is + * guaranteed room for its cookie). If not, nuke the added attributes out + * of the span. */ #if USE_XMC_SUPPORT if (magic_cookie_glitch > 0) { @@ -600,11 +689,13 @@ doupdate(void) for (i = 0; i < screen_lines; i++) { for (j = 0; j < screen_columns; j++) { bool failed = FALSE; - attr_t turnon = AttrOf(newscr->_line[i].text[j]) & ~rattr; + NCURSES_CH_T *thisline = newscr->_line[i].text; + attr_t thisattr = AttrOf(thisline[j]) & SP->_xmc_triggers; + attr_t turnon = thisattr & ~rattr; /* is an attribute turned on here? */ if (turnon == 0) { - rattr = AttrOf(newscr->_line[i].text[j]); + rattr = thisattr; continue; } @@ -612,23 +703,33 @@ doupdate(void) TR(TRACE_ATTRS, ("...to %s", _traceattr(turnon))); /* - * If the attribute change location is a blank with a - * "safe" attribute, undo the attribute turnon. This may - * ensure there's enough room to set the attribute before - * the first non-blank in the run. + * If the attribute change location is a blank with a "safe" + * attribute, undo the attribute turnon. This may ensure + * there's enough room to set the attribute before the first + * non-blank in the run. */ -#define SAFE(a) (!((a) & (attr_t)~NONBLANK_ATTR)) - if (ISBLANK(newscr->_line[i].text[j]) && SAFE(turnon)) { - RemAttr(newscr->_line[i].text[j], turnon); +#define SAFE(a) (!((a) & SP->_xmc_triggers)) + if (ISBLANK(thisline[j]) && SAFE(turnon)) { + RemAttr(thisline[j], turnon); continue; } /* check that there's enough room at start of span */ for (k = 1; k <= magic_cookie_glitch; k++) { if (j - k < 0 - || !ISBLANK(newscr->_line[i].text[j - k]) - || !SAFE(AttrOf(newscr->_line[i].text[j - k]))) + || !ISBLANK(thisline[j - k]) + || !SAFE(AttrOf(thisline[j - k]))) { failed = TRUE; + TR(TRACE_ATTRS, ("No room at start in %d,%d%s%s", + i, j - k, + (ISBLANK(thisline[j - k]) + ? "" + : ":nonblank"), + (SAFE(AttrOf(thisline[j - k])) + ? "" + : ":unsafe"))); + break; + } } if (!failed) { bool end_onscreen = FALSE; @@ -637,7 +738,8 @@ doupdate(void) /* find end of span, if it's onscreen */ for (m = i; m < screen_lines; m++) { for (; n < screen_columns; n++) { - if (AttrOf(newscr->_line[m].text[n]) == rattr) { + attr_t testattr = AttrOf(newscr->_line[m].text[n]); + if ((testattr & SP->_xmc_triggers) == rattr) { end_onscreen = TRUE; TR(TRACE_ATTRS, ("Range attributed with %s ends at (%d, %d)", @@ -656,22 +758,34 @@ doupdate(void) NCURSES_CH_T *lastline = newscr->_line[m].text; /* - * If there are safely-attributed blanks at the - * end of the range, shorten the range. This will - * help ensure that there is enough room at end - * of span. + * If there are safely-attributed blanks at the end of + * the range, shorten the range. This will help ensure + * that there is enough room at end of span. */ while (n >= 0 && ISBLANK(lastline[n]) - && SAFE(AttrOf(lastline[n]))) + && SAFE(AttrOf(lastline[n]))) { RemAttr(lastline[n--], turnon); + } /* check that there's enough room at end of span */ - for (k = 1; k <= magic_cookie_glitch; k++) + for (k = 1; k <= magic_cookie_glitch; k++) { if (n + k >= screen_columns || !ISBLANK(lastline[n + k]) - || !SAFE(AttrOf(lastline[n + k]))) + || !SAFE(AttrOf(lastline[n + k]))) { failed = TRUE; + TR(TRACE_ATTRS, + ("No room at end in %d,%d%s%s", + i, j - k, + (ISBLANK(lastline[n + k]) + ? "" + : ":nonblank"), + (SAFE(AttrOf(lastline[n + k])) + ? "" + : ":unsafe"))); + break; + } + } } } @@ -685,7 +799,8 @@ doupdate(void) /* turn off new attributes over span */ for (p = i; p < screen_lines; p++) { for (; q < screen_columns; q++) { - if (AttrOf(newscr->_line[p].text[q]) == rattr) + attr_t testattr = AttrOf(newscr->_line[p].text[q]); + if ((testattr & SP->_xmc_triggers) == rattr) goto foundend; RemAttr(newscr->_line[p].text[q], turnon); } @@ -698,14 +813,14 @@ doupdate(void) _traceattr(turnon), i, j)); /* - * back up the start of range so there's room - * for cookies before the first nonblank character + * Back up the start of range so there's room for cookies + * before the first nonblank character. */ for (k = 1; k <= magic_cookie_glitch; k++) - AddAttr(newscr->_line[i].text[j - k], turnon); + AddAttr(thisline[j - k], turnon); } - rattr = AttrOf(newscr->_line[i].text[j]); + rattr = thisattr; } } @@ -789,13 +904,18 @@ doupdate(void) cleanup: /* - * Keep the physical screen in normal mode in case we get other - * processes writing to the screen. + * We would like to keep the physical screen in normal mode in case we get + * other processes writing to the screen. This goal cannot be met for + * magic cookies since it interferes with attributes that may propagate + * past the current position. */ - UpdateAttrs(A_NORMAL); +#if USE_XMC_SUPPORT + if (magic_cookie_glitch != 0) +#endif + UpdateAttrs(normal); _nc_flush(); - curscr->_attrs = newscr->_attrs; + WINDOW_ATTRS(curscr) = WINDOW_ATTRS(newscr); #if USE_TRACE_TIMES (void) times(&after); @@ -824,10 +944,10 @@ doupdate(void) #define BCE_ATTRS (A_NORMAL|A_COLOR) #define BCE_BKGD(win) (((win) == curscr ? stdscr : (win))->_nc_bkgd) -static inline NCURSES_CH_T +static NCURSES_INLINE NCURSES_CH_T ClrBlank(WINDOW *win) { - NCURSES_CH_T blank = NewChar(BLANK_TEXT); + NCURSES_CH_T blank = blankchar; if (back_color_erase) AddAttr(blank, (AttrOf(BCE_BKGD(win)) & BCE_ATTRS)); return blank; @@ -887,14 +1007,14 @@ ClrToEOL(NCURSES_CH_T blank, bool needclear) } if (needclear) { - UpdateAttrs(AttrOf(blank)); + UpdateAttrs(blank); TPUTS_TRACE("clr_eol"); - if (SP->_el_cost > (screen_columns - SP->_curscol)) { + if (clr_eol && SP->_el_cost <= (screen_columns - SP->_curscol)) { + putp(clr_eol); + } else { int count = (screen_columns - SP->_curscol); while (count-- > 0) PutChar(CHREF(blank)); - } else { - putp(clr_eol); } } } @@ -913,7 +1033,7 @@ ClrToEOS(NCURSES_CH_T blank) row = SP->_cursrow; col = SP->_curscol; - UpdateAttrs(AttrOf(blank)); + UpdateAttrs(blank); TPUTS_TRACE("clr_eos"); tputs(clr_eos, screen_lines - row, _nc_outch); @@ -940,7 +1060,7 @@ ClrBottom(int total) int col; int top = total; int last = min(screen_columns, newscr->_maxx + 1); - NCURSES_CH_T blank = ClrBlank(stdscr); + NCURSES_CH_T blank = newscr->_line[total - 1].text[last - 1]; bool ok; if (clr_eos && can_clear_with(CHREF(blank))) { @@ -960,29 +1080,22 @@ ClrBottom(int total) } /* don't use clr_eos for just one line if clr_eol available */ - if (top < total - 1 || (top < total && !clr_eol && !clr_bol)) { + if (top < total) { GoTo(top, 0); ClrToEOS(blank); - total = top; if (SP->oldhash && SP->newhash) { for (row = top; row < screen_lines; row++) SP->oldhash[row] = SP->newhash[row]; } } } - return total; + return top; } #if USE_XMC_SUPPORT #if USE_WIDEC_SUPPORT -static inline bool -check_xmc_transition(NCURSES_CH_T * a, NCURSES_CH_T * b) -{ - if (((a->attr ^ b->attr) & ~(a->attr) & SP->_xmc_triggers) != 0) { - return TRUE; - } - return FALSE; -} +#define check_xmc_transition(a, b) \ + ((((a)->attr ^ (b)->attr) & ~((a)->attr) & SP->_xmc_triggers) != 0) #define xmc_turn_on(a,b) check_xmc_transition(&(a), &(b)) #else #define xmc_turn_on(a,b) ((((a)^(b)) & ~(a) & SP->_xmc_triggers) != 0) @@ -1019,14 +1132,12 @@ TransformLine(int const lineno) int n; bool attrchanged = FALSE; - TR(TRACE_UPDATE, ("TransformLine(%d) called", lineno)); + TR(TRACE_UPDATE, (T_CALLED("TransformLine(%d)"), lineno)); /* copy new hash value to old one */ if (SP->oldhash && SP->newhash) SP->oldhash[lineno] = SP->newhash[lineno]; -#define ColorOf(n) (AttrOf(n) & A_COLOR) -#define unColor(n) (AttrOf(n) & ALL_BUT_COLOR) /* * If we have colors, there is the possibility of having two color pairs * that display as the same colors. For instance, Lynx does this. Check @@ -1034,24 +1145,19 @@ TransformLine(int const lineno) * they are equivalent. */ if (SP->_coloron) { - attr_t oldColor; - attr_t newColor; int oldPair; int newPair; for (n = 0; n < screen_columns; n++) { if (!CharEq(newLine[n], oldLine[n])) { - oldColor = ColorOf(oldLine[n]); - newColor = ColorOf(newLine[n]); - if (oldColor != newColor + oldPair = GetPair(oldLine[n]); + newPair = GetPair(newLine[n]); + if (oldPair != newPair && unColor(oldLine[n]) == unColor(newLine[n])) { - oldPair = PAIR_NUMBER(oldColor); - newPair = PAIR_NUMBER(newColor); if (oldPair < COLOR_PAIRS && newPair < COLOR_PAIRS && SP->_color_pairs[oldPair] == SP->_color_pairs[newPair]) { - RemAttr(oldLine[n], A_COLOR); - AddAttr(oldLine[n], ColorOf(newLine[n])); + SetPair(oldLine[n], GetPair(newLine[n])); } } } @@ -1061,8 +1167,10 @@ TransformLine(int const lineno) if (ceol_standout_glitch && clr_eol) { firstChar = 0; while (firstChar < screen_columns) { - if (AttrOf(newLine[firstChar]) != AttrOf(oldLine[firstChar])) + if (!SameAttrOf(newLine[firstChar], oldLine[firstChar])) { attrchanged = TRUE; + break; + } firstChar++; } } @@ -1125,17 +1233,9 @@ TransformLine(int const lineno) } else { NCURSES_CH_T blank; - /* find the first differing character */ - while (firstChar < screen_columns && - CharEq(newLine[firstChar], oldLine[firstChar])) - firstChar++; - - /* if there wasn't one, we're done */ - if (firstChar >= screen_columns) - return; - /* it may be cheap to clear leading whitespace with clr_bol */ - if (clr_bol && (blank = newLine[0], can_clear_with(CHREF(blank)))) { + blank = newLine[0]; + if (clr_bol && can_clear_with(CHREF(blank))) { int oFirstChar, nFirstChar; for (oFirstChar = 0; oFirstChar < screen_columns; oFirstChar++) @@ -1145,25 +1245,44 @@ TransformLine(int const lineno) if (!CharEq(newLine[nFirstChar], blank)) break; - if (nFirstChar > oFirstChar + SP->_el1_cost) { - if (nFirstChar >= screen_columns && SP->_el_cost <= SP->_el1_cost) { - GoTo(lineno, 0); - UpdateAttrs(AttrOf(blank)); - TPUTS_TRACE("clr_eol"); - putp(clr_eol); - } else { - GoTo(lineno, nFirstChar - 1); - UpdateAttrs(AttrOf(blank)); - TPUTS_TRACE("clr_bol"); - putp(clr_bol); - } - - while (firstChar < nFirstChar) - oldLine[firstChar++] = blank; + if (nFirstChar == oFirstChar) { + firstChar = nFirstChar; + /* find the first differing character */ + while (firstChar < screen_columns + && CharEq(newLine[firstChar], oldLine[firstChar])) + firstChar++; + } else if (oFirstChar > nFirstChar) { + firstChar = nFirstChar; + } else { /* oFirstChar < nFirstChar */ + firstChar = oFirstChar; + if (SP->_el1_cost < nFirstChar - oFirstChar) { + if (nFirstChar >= screen_columns + && SP->_el_cost <= SP->_el1_cost) { + GoTo(lineno, 0); + UpdateAttrs(blank); + TPUTS_TRACE("clr_eol"); + putp(clr_eol); + } else { + GoTo(lineno, nFirstChar - 1); + UpdateAttrs(blank); + TPUTS_TRACE("clr_bol"); + putp(clr_bol); + } - if (firstChar >= screen_columns) - return; + while (firstChar < nFirstChar) + oldLine[firstChar++] = blank; + } } + } else { + /* find the first differing character */ + while (firstChar < screen_columns + && CharEq(newLine[firstChar], oldLine[firstChar])) + firstChar++; + } + /* if there wasn't one, we're done */ + if (firstChar >= screen_columns) { + TR(TRACE_UPDATE, (T_RETURN(""))); + return; } blank = newLine[screen_columns - 1]; @@ -1183,6 +1302,7 @@ TransformLine(int const lineno) newLine + firstChar, (nLastChar - firstChar + 1) * sizeof(NCURSES_CH_T)); } + TR(TRACE_UPDATE, (T_RETURN(""))); return; } @@ -1222,7 +1342,7 @@ TransformLine(int const lineno) /* can be -1 if no characters differ */ while (CharEq(newLine[nLastChar], oldLine[oLastChar])) { /* don't split a wide char */ - if (isnac(newLine[nLastChar]) && + if (isWidecExt(newLine[nLastChar]) && !CharEq(newLine[nLastChar - 1], oldLine[oLastChar - 1])) break; nLastChar--; @@ -1239,9 +1359,15 @@ TransformLine(int const lineno) if (oLastChar < nLastChar) { int m = max(nLastNonblank, oLastNonblank); +#if USE_WIDEC_SUPPORT + while (isWidecExt(newLine[n + 1]) && n) { + --n; + --oLastChar; + } +#endif GoTo(lineno, n + 1); - if (InsCharCost(nLastChar - oLastChar) - > (m - n)) { + if ((nLastChar < nLastNonblank) + || InsCharCost(nLastChar - oLastChar) > (m - n)) { PutRange(oldLine, newLine, lineno, n + 1, m); } else { InsStr(&newLine[n + 1], nLastChar - oLastChar); @@ -1263,7 +1389,7 @@ TransformLine(int const lineno) * setting the video attributes from * the last character on the row. */ - UpdateAttrs(AttrOf(blank)); + UpdateAttrs(blank); DelChar(oLastChar - nLastChar); } } @@ -1275,6 +1401,8 @@ TransformLine(int const lineno) memcpy(oldLine + firstChar, newLine + firstChar, (screen_columns - firstChar) * sizeof(NCURSES_CH_T)); + TR(TRACE_UPDATE, (T_RETURN(""))); + return; } /* @@ -1295,7 +1423,7 @@ ClearScreen(NCURSES_CH_T blank) #if NCURSES_EXT_FUNCS if (SP->_coloron && !SP->_default_color) { - _nc_do_color((int) COLOR_PAIR(SP->_current_attr), 0, FALSE, _nc_outch); + _nc_do_color(GET_SCREEN_PAIR(SP), 0, FALSE, _nc_outch); if (!back_color_erase) { fast_clear = FALSE; } @@ -1304,7 +1432,7 @@ ClearScreen(NCURSES_CH_T blank) if (fast_clear) { if (clear_screen) { - UpdateAttrs(AttrOf(blank)); + UpdateAttrs(blank); TPUTS_TRACE("clear_screen"); putp(clear_screen); SP->_cursrow = SP->_curscol = 0; @@ -1313,13 +1441,13 @@ ClearScreen(NCURSES_CH_T blank) SP->_cursrow = SP->_curscol = -1; GoTo(0, 0); - UpdateAttrs(AttrOf(blank)); + UpdateAttrs(blank); TPUTS_TRACE("clr_eos"); - putp(clr_eos); + tputs(clr_eos, screen_lines, _nc_outch); } else if (clr_eol) { SP->_cursrow = SP->_curscol = -1; - UpdateAttrs(AttrOf(blank)); + UpdateAttrs(blank); for (i = 0; i < screen_lines; i++) { GoTo(i, 0); TPUTS_TRACE("clr_eol"); @@ -1328,7 +1456,7 @@ ClearScreen(NCURSES_CH_T blank) GoTo(0, 0); } } else { - UpdateAttrs(AttrOf(blank)); + UpdateAttrs(blank); for (i = 0; i < screen_lines; i++) { GoTo(i, 0); for (j = 0; j < screen_columns; j++) @@ -1362,7 +1490,7 @@ InsStr(NCURSES_CH_T * line, int count) /* The order must match that of InsCharCost. */ if (parm_ich) { TPUTS_TRACE("parm_ich"); - tputs(tparm(parm_ich, count), count, _nc_outch); + tputs(TPARM_1(parm_ich, count), count, _nc_outch); while (count) { PutAttrChar(CHREF(*line)); line++; @@ -1410,12 +1538,14 @@ DelChar(int count) { int n; - TR(TRACE_UPDATE, ("DelChar(%d) called, position = (%d,%d)", count, - newscr->_cury, newscr->_curx)); + TR(TRACE_UPDATE, ("DelChar(%d) called, position = (%ld,%ld)", + count, + (long) newscr->_cury, + (long) newscr->_curx)); if (parm_dch) { TPUTS_TRACE("parm_dch"); - tputs(tparm(parm_dch, count), count, _nc_outch); + tputs(TPARM_1(parm_dch, count), count, _nc_outch); } else { for (n = 0; n < count; n++) { TPUTS_TRACE("delete_character"); @@ -1425,19 +1555,6 @@ DelChar(int count) } /* -** _nc_outstr(char *str) -** -** Emit a string without waiting for update. -*/ - -NCURSES_EXPORT(void) -_nc_outstr(const char *str) -{ - (void) putp(str); - _nc_flush(); -} - -/* * Physical-scrolling support * * This code was adapted from Keith Bostic's hardware scrolling @@ -1473,47 +1590,48 @@ _nc_outstr(const char *str) static int scroll_csr_forward(int n, int top, int bot, int miny, int maxy, NCURSES_CH_T blank) { - int i, j; + int i; if (n == 1 && scroll_forward && top == miny && bot == maxy) { GoTo(bot, 0); - UpdateAttrs(AttrOf(blank)); + UpdateAttrs(blank); TPUTS_TRACE("scroll_forward"); - tputs(scroll_forward, 0, _nc_outch); + putp(scroll_forward); } else if (n == 1 && delete_line && bot == maxy) { GoTo(top, 0); - UpdateAttrs(AttrOf(blank)); + UpdateAttrs(blank); TPUTS_TRACE("delete_line"); - tputs(delete_line, 0, _nc_outch); + putp(delete_line); } else if (parm_index && top == miny && bot == maxy) { GoTo(bot, 0); - UpdateAttrs(AttrOf(blank)); + UpdateAttrs(blank); TPUTS_TRACE("parm_index"); - tputs(tparm(parm_index, n, 0), n, _nc_outch); + tputs(TPARM_2(parm_index, n, 0), n, _nc_outch); } else if (parm_delete_line && bot == maxy) { GoTo(top, 0); - UpdateAttrs(AttrOf(blank)); + UpdateAttrs(blank); TPUTS_TRACE("parm_delete_line"); - tputs(tparm(parm_delete_line, n, 0), n, _nc_outch); + tputs(TPARM_2(parm_delete_line, n, 0), n, _nc_outch); } else if (scroll_forward && top == miny && bot == maxy) { GoTo(bot, 0); - UpdateAttrs(AttrOf(blank)); + UpdateAttrs(blank); for (i = 0; i < n; i++) { TPUTS_TRACE("scroll_forward"); - tputs(scroll_forward, 0, _nc_outch); + putp(scroll_forward); } } else if (delete_line && bot == maxy) { GoTo(top, 0); - UpdateAttrs(AttrOf(blank)); + UpdateAttrs(blank); for (i = 0; i < n; i++) { TPUTS_TRACE("delete_line"); - tputs(delete_line, 0, _nc_outch); + putp(delete_line); } } else return ERR; #if NCURSES_EXT_FUNCS if (FILL_BCE()) { + int j; for (i = 0; i < n; i++) { GoTo(bot - i, 0); for (j = 0; j < screen_columns; j++) @@ -1530,47 +1648,48 @@ static int scroll_csr_backward(int n, int top, int bot, int miny, int maxy, NCURSES_CH_T blank) { - int i, j; + int i; if (n == 1 && scroll_reverse && top == miny && bot == maxy) { GoTo(top, 0); - UpdateAttrs(AttrOf(blank)); + UpdateAttrs(blank); TPUTS_TRACE("scroll_reverse"); - tputs(scroll_reverse, 0, _nc_outch); + putp(scroll_reverse); } else if (n == 1 && insert_line && bot == maxy) { GoTo(top, 0); - UpdateAttrs(AttrOf(blank)); + UpdateAttrs(blank); TPUTS_TRACE("insert_line"); - tputs(insert_line, 0, _nc_outch); + putp(insert_line); } else if (parm_rindex && top == miny && bot == maxy) { GoTo(top, 0); - UpdateAttrs(AttrOf(blank)); + UpdateAttrs(blank); TPUTS_TRACE("parm_rindex"); - tputs(tparm(parm_rindex, n, 0), n, _nc_outch); + tputs(TPARM_2(parm_rindex, n, 0), n, _nc_outch); } else if (parm_insert_line && bot == maxy) { GoTo(top, 0); - UpdateAttrs(AttrOf(blank)); + UpdateAttrs(blank); TPUTS_TRACE("parm_insert_line"); - tputs(tparm(parm_insert_line, n, 0), n, _nc_outch); + tputs(TPARM_2(parm_insert_line, n, 0), n, _nc_outch); } else if (scroll_reverse && top == miny && bot == maxy) { GoTo(top, 0); - UpdateAttrs(AttrOf(blank)); + UpdateAttrs(blank); for (i = 0; i < n; i++) { TPUTS_TRACE("scroll_reverse"); - tputs(scroll_reverse, 0, _nc_outch); + putp(scroll_reverse); } } else if (insert_line && bot == maxy) { GoTo(top, 0); - UpdateAttrs(AttrOf(blank)); + UpdateAttrs(blank); for (i = 0; i < n; i++) { TPUTS_TRACE("insert_line"); - tputs(insert_line, 0, _nc_outch); + putp(insert_line); } } else return ERR; #if NCURSES_EXT_FUNCS if (FILL_BCE()) { + int j; for (i = 0; i < n; i++) { GoTo(top + i, 0); for (j = 0; j < screen_columns; j++) @@ -1592,41 +1711,48 @@ scroll_idl(int n, int del, int ins, NCURSES_CH_T blank) return ERR; GoTo(del, 0); - UpdateAttrs(AttrOf(blank)); + UpdateAttrs(blank); if (n == 1 && delete_line) { TPUTS_TRACE("delete_line"); - tputs(delete_line, 0, _nc_outch); + putp(delete_line); } else if (parm_delete_line) { TPUTS_TRACE("parm_delete_line"); - tputs(tparm(parm_delete_line, n, 0), n, _nc_outch); + tputs(TPARM_2(parm_delete_line, n, 0), n, _nc_outch); } else { /* if (delete_line) */ for (i = 0; i < n; i++) { TPUTS_TRACE("delete_line"); - tputs(delete_line, 0, _nc_outch); + putp(delete_line); } } GoTo(ins, 0); - UpdateAttrs(AttrOf(blank)); + UpdateAttrs(blank); if (n == 1 && insert_line) { TPUTS_TRACE("insert_line"); - tputs(insert_line, 0, _nc_outch); + putp(insert_line); } else if (parm_insert_line) { TPUTS_TRACE("parm_insert_line"); - tputs(tparm(parm_insert_line, n, 0), n, _nc_outch); + tputs(TPARM_2(parm_insert_line, n, 0), n, _nc_outch); } else { /* if (insert_line) */ for (i = 0; i < n; i++) { TPUTS_TRACE("insert_line"); - tputs(insert_line, 0, _nc_outch); + putp(insert_line); } } return OK; } +/* + * Note: some terminals require the cursor to be within the scrolling margins + * before setting them. Generally, the cursor must be at the appropriate end + * of the scrolling margins when issuing an indexing operation (it is not + * apparent whether it must also be at the left margin; we do this just to be + * safe). To make the related cursor movement a little faster, we use the + * save/restore cursor capabilities if the terminal has them. + */ NCURSES_EXPORT(int) -_nc_scrolln -(int n, int top, int bot, int maxy) +_nc_scrolln(int n, int top, int bot, int maxy) /* scroll region from top to bot by n lines */ { NCURSES_CH_T blank = ClrBlank(stdscr); @@ -1658,13 +1784,13 @@ _nc_scrolln && save_cursor && restore_cursor) { cursor_saved = TRUE; TPUTS_TRACE("save_cursor"); - tputs(save_cursor, 0, _nc_outch); + putp(save_cursor); } TPUTS_TRACE("change_scroll_region"); - tputs(tparm(change_scroll_region, top, bot), 0, _nc_outch); + putp(TPARM_2(change_scroll_region, top, bot)); if (cursor_saved) { TPUTS_TRACE("restore_cursor"); - tputs(restore_cursor, 0, _nc_outch); + putp(restore_cursor); } else { SP->_cursrow = SP->_curscol = -1; } @@ -1672,7 +1798,7 @@ _nc_scrolln res = scroll_csr_forward(n, top, bot, top, bot, blank); TPUTS_TRACE("change_scroll_region"); - tputs(tparm(change_scroll_region, 0, maxy), 0, _nc_outch); + putp(TPARM_2(change_scroll_region, 0, maxy)); SP->_cursrow = SP->_curscol = -1; } @@ -1684,9 +1810,9 @@ _nc_scrolln */ if (res != ERR && (non_dest_scroll_region || (memory_below && bot == maxy))) { - NCURSES_CH_T blank2 = NewChar(BLANK_TEXT); + static const NCURSES_CH_T blank2 = NewChar(BLANK_TEXT); if (bot == maxy && clr_eos) { - GoTo(bot - n, 0); + GoTo(bot - n + 1, 0); ClrToEOS(blank2); } else { for (i = 0; i < n; i++) { @@ -1704,13 +1830,13 @@ _nc_scrolln && save_cursor && restore_cursor) { cursor_saved = TRUE; TPUTS_TRACE("save_cursor"); - tputs(save_cursor, 0, _nc_outch); + putp(save_cursor); } TPUTS_TRACE("change_scroll_region"); - tputs(tparm(change_scroll_region, top, bot), 0, _nc_outch); + putp(TPARM_2(change_scroll_region, top, bot)); if (cursor_saved) { TPUTS_TRACE("restore_cursor"); - tputs(restore_cursor, 0, _nc_outch); + putp(restore_cursor); } else { SP->_cursrow = SP->_curscol = -1; } @@ -1718,7 +1844,7 @@ _nc_scrolln res = scroll_csr_backward(-n, top, bot, top, bot, blank); TPUTS_TRACE("change_scroll_region"); - tputs(tparm(change_scroll_region, 0, maxy), 0, _nc_outch); + putp(TPARM_2(change_scroll_region, 0, maxy)); SP->_cursrow = SP->_curscol = -1; } @@ -1730,7 +1856,7 @@ _nc_scrolln */ if (res != ERR && (non_dest_scroll_region || (memory_above && top == 0))) { - NCURSES_CH_T blank2 = NewChar(BLANK_TEXT); + static const NCURSES_CH_T blank2 = NewChar(BLANK_TEXT); for (i = 0; i < -n; i++) { GoTo(i + top, 0); ClrToEOL(blank2, FALSE); @@ -1753,11 +1879,27 @@ NCURSES_EXPORT(void) _nc_screen_resume(void) { /* make sure terminal is in a sane known state */ - SP->_current_attr = A_NORMAL; + SetAttr(SCREEN_ATTRS(SP), A_NORMAL); newscr->_clear = TRUE; - if (SP->_coloron == TRUE && orig_pair) - putp(orig_pair); + /* reset color pairs and definitions */ + if (SP->_coloron || SP->_color_defs) + _nc_reset_colors(); + + /* restore user-defined colors, if any */ + if (SP->_color_defs < 0) { + int n; + SP->_color_defs = -(SP->_color_defs); + for (n = 0; n < SP->_color_defs; ++n) { + if (SP->_color_table[n].init) { + init_color(n, + SP->_color_table[n].r, + SP->_color_table[n].g, + SP->_color_table[n].b); + } + } + } + if (exit_attribute_mode) putp(exit_attribute_mode); else { @@ -1785,29 +1927,30 @@ _nc_screen_init(void) NCURSES_EXPORT(void) _nc_screen_wrap(void) { - UpdateAttrs(A_NORMAL); + UpdateAttrs(normal); #if NCURSES_EXT_FUNCS if (SP->_coloron && !SP->_default_color) { - NCURSES_CH_T blank = NewChar(BLANK_TEXT); + static const NCURSES_CH_T blank = NewChar(BLANK_TEXT); SP->_default_color = TRUE; _nc_do_color(-1, 0, FALSE, _nc_outch); SP->_default_color = FALSE; mvcur(SP->_cursrow, SP->_curscol, screen_lines - 1, 0); - SP->_cursrow = screen_lines - 1; - SP->_curscol = 0; ClrToEOL(blank, TRUE); } #endif + if (SP->_color_defs) { + _nc_reset_colors(); + } } #if USE_XMC_SUPPORT NCURSES_EXPORT(void) _nc_do_xmc_glitch(attr_t previous) { - attr_t chg = XMC_CHANGES(previous ^ SP->_current_attr); + attr_t chg = XMC_CHANGES(previous ^ AttrOf(SCREEN_ATTRS(SP))); while (chg != 0) { if (chg & 1) { |
