]> ncurses.scripts.mit.edu Git - ncurses.git/blobdiff - ncurses/tty/lib_vidattr.c
ncurses 5.1
[ncurses.git] / ncurses / tty / lib_vidattr.c
index 20cc2b138011c528a4f162aadee7ecfedb58d239..7cff22ec4b430504a37023aca9798e74fddfec87 100644 (file)
@@ -1,5 +1,5 @@
 /****************************************************************************
- * Copyright (c) 1998 Free Software Foundation, Inc.                        *
+ * Copyright (c) 1998,1999,2000 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            *
@@ -64,7 +64,7 @@
 #include <curses.priv.h>
 #include <term.h>
 
-MODULE_ID("$Id: lib_vidattr.c,v 1.23 1999/06/12 21:20:41 tom Exp $")
+MODULE_ID("$Id: lib_vidattr.c,v 1.27 2000/04/29 23:25:27 tom Exp $")
 
 #define doPut(mode) TPUTS_TRACE(#mode); tputs(mode, 1, outc)
 
@@ -76,203 +76,218 @@ MODULE_ID("$Id: lib_vidattr.c,v 1.23 1999/06/12 21:20:41 tom Exp $")
 
        /* if there is no current screen, assume we *can* do color */
 #define SetColorsIf(why,old_attr) \
-       if ((!SP || SP->_coloron) && (why)) { \
+       if (can_color && (why)) { \
                int old_pair = PAIR_NUMBER(old_attr); \
                T(("old pair = %d -- new pair = %d", old_pair, pair)); \
                if ((pair != old_pair) \
+                || (fix_pair0 && (pair == 0)) \
                 || (reverse ^ ((old_attr & A_REVERSE) != 0))) { \
-                       _nc_do_color(pair, reverse, outc); \
+                       _nc_do_color(old_pair, pair, reverse, outc); \
                } \
        }
 
-int vidputs(attr_t newmode, int  (*outc)(int))
+int
+vidputs(attr_t newmode, int (*outc) (int))
 {
-static attr_t previous_attr = A_NORMAL;
-attr_t turn_on, turn_off;
-int pair;
-bool reverse = FALSE;
-bool used_ncv = FALSE;
+    static attr_t previous_attr = A_NORMAL;
+    attr_t turn_on, turn_off;
+    int pair;
+    bool reverse = FALSE;
+    bool used_ncv = FALSE;
+    bool can_color = (SP == 0 || SP->_coloron);
+#ifdef NCURSES_EXT_FUNCS
+    bool fix_pair0 = (SP != 0 && SP->_coloron && !SP->_default_color);
+#else
+#define fix_pair0 FALSE
+#endif
 
-       T((T_CALLED("vidputs(%s)"), _traceattr(newmode)));
+    T((T_CALLED("vidputs(%s)"), _traceattr(newmode)));
 
-       /* this allows us to go on whether or not newterm() has been called */
-       if (SP)
-               previous_attr = SP->_current_attr;
+    /* this allows us to go on whether or not newterm() has been called */
+    if (SP)
+       previous_attr = SP->_current_attr;
 
-       T(("previous attribute was %s", _traceattr(previous_attr)));
+    T(("previous attribute was %s", _traceattr(previous_attr)));
 
 #if !USE_XMC_SUPPORT
-       if ((SP != 0)
-        && (magic_cookie_glitch > 0))
-               newmode &= ~(SP->_xmc_suppress);
+    if ((SP != 0)
+       && (magic_cookie_glitch > 0))
+       newmode &= ~(SP->_xmc_suppress);
 #endif
 
-       /*
-        * If we have a terminal that cannot combine color with video
-        * attributes, use the colors in preference.
-        */
-       if ((newmode & A_COLOR)
-        && (no_color_video > 0)) {
-               static const struct {
-                       attr_t video;
-                       unsigned bit;
-               } table[] = {
-                       { A_STANDOUT,           1 },
-                       { A_UNDERLINE,          2 },
-                       { A_REVERSE,            4 },
-                       { A_BLINK,              8 },
-                       { A_DIM,                16 },
-                       { A_BOLD,               32 },
-                       { A_INVIS,              64 },
-                       { A_PROTECT,            128 },
-                       { A_ALTCHARSET,         256 },
-               };
-               size_t n;
-               for (n = 0; n < SIZEOF(table); n++) {
-                       if ((table[n].bit & no_color_video)
-                        && (table[n].video & newmode)) {
-                               used_ncv = TRUE;
-                               if (table[n].video == A_REVERSE)
-                                       reverse = TRUE;
-                               else
-                                       newmode &= ~table[n].video;
-                       }
-               }
+    /*
+     * If we have a terminal that cannot combine color with video
+     * attributes, use the colors in preference.
+     */
+    if (((newmode & A_COLOR) != 0
+           || fix_pair0)
+       && (no_color_video > 0)) {
+       /* *INDENT-OFF* */
+       static const struct {
+           attr_t video;
+           unsigned bit;
+       } table[] = {
+           { A_STANDOUT,       1 },
+           { A_UNDERLINE,      2 },
+           { A_REVERSE,        4 },
+           { A_BLINK,          8 },
+           { A_DIM,            16 },
+           { A_BOLD,           32 },
+           { A_INVIS,          64 },
+           { A_PROTECT,        128 },
+           { A_ALTCHARSET,     256 },
+       };
+       /* *INDENT-ON* */
+
+       size_t n;
+       for (n = 0; n < SIZEOF(table); n++) {
+           if ((table[n].bit & no_color_video)
+               && (table[n].video & newmode)) {
+               used_ncv = TRUE;
+               if (table[n].video == A_REVERSE)
+                   reverse = TRUE;
+               else
+                   newmode &= ~table[n].video;
+           }
        }
+    }
+
+    if (newmode == previous_attr)
+       returnCode(OK);
+
+    pair = PAIR_NUMBER(newmode);
 
-       if (newmode == previous_attr)
-               returnCode(OK);
+    if (reverse) {
+       newmode &= ~A_REVERSE;
+    }
 
-       pair = PAIR_NUMBER(newmode);
+    turn_off = (~newmode & previous_attr) & ALL_BUT_COLOR;
+    turn_on = (newmode & ~previous_attr) & ALL_BUT_COLOR;
 
-       if (reverse) {
-               newmode &= ~A_REVERSE;
+    SetColorsIf(((pair == 0) && !fix_pair0), previous_attr);
+
+    if (newmode == A_NORMAL) {
+       if ((previous_attr & A_ALTCHARSET) && exit_alt_charset_mode) {
+           doPut(exit_alt_charset_mode);
+           previous_attr &= ~A_ALTCHARSET;
+       }
+       if (previous_attr) {
+           doPut(exit_attribute_mode);
+           previous_attr &= ~A_COLOR;
        }
 
-       turn_off = (~newmode & previous_attr) & ALL_BUT_COLOR;
-       turn_on  = (newmode & ~previous_attr) & ALL_BUT_COLOR;
-
-       SetColorsIf(pair == 0, previous_attr);
-
-       if (newmode == A_NORMAL) {
-               if((previous_attr & A_ALTCHARSET) && exit_alt_charset_mode) {
-                       doPut(exit_alt_charset_mode);
-                       previous_attr &= ~A_ALTCHARSET;
-               }
-               if (previous_attr) {
-                       doPut(exit_attribute_mode);
-                       previous_attr &= ~A_COLOR;
-               }
-
-               SetColorsIf(pair != 0, previous_attr);
-       } else if (set_attributes && !used_ncv) {
-               if (turn_on || turn_off) {
-                       TPUTS_TRACE("set_attributes");
-                       tputs(tparm(set_attributes,
-                               (newmode & A_STANDOUT) != 0,
-                               (newmode & A_UNDERLINE) != 0,
-                               (newmode & A_REVERSE) != 0,
-                               (newmode & A_BLINK) != 0,
-                               (newmode & A_DIM) != 0,
-                               (newmode & A_BOLD) != 0,
-                               (newmode & A_INVIS) != 0,
-                               (newmode & A_PROTECT) != 0,
-                               (newmode & A_ALTCHARSET) != 0), 1, outc);
-                       previous_attr &= ~A_COLOR;
-               }
-               SetColorsIf(pair != 0, previous_attr);
-       } else {
-
-               T(("turning %s off", _traceattr(turn_off)));
-
-               TurnOff(A_ALTCHARSET,  exit_alt_charset_mode);
-
-               if (!SP || SP->_use_rmul) {
-                       TurnOff(A_UNDERLINE,   exit_underline_mode);
-               }
-
-               if (!SP || SP->_use_rmso) {
-                       TurnOff(A_STANDOUT,    exit_standout_mode);
-               }
-
-               if (turn_off && exit_attribute_mode) {
-                       doPut(exit_attribute_mode);
-                       turn_on  |= (newmode & (chtype)(~A_COLOR));
-                       previous_attr &= ~A_COLOR;
-               }
-               SetColorsIf(pair != 0, previous_attr);
-
-               T(("turning %s on", _traceattr(turn_on)));
-
-               TurnOn (A_ALTCHARSET, enter_alt_charset_mode);
-               TurnOn (A_BLINK,      enter_blink_mode);
-               TurnOn (A_BOLD,       enter_bold_mode);
-               TurnOn (A_DIM,        enter_dim_mode);
-               TurnOn (A_REVERSE,    enter_reverse_mode);
-               TurnOn (A_STANDOUT,   enter_standout_mode);
-               TurnOn (A_PROTECT,    enter_protected_mode);
-               TurnOn (A_INVIS,      enter_secure_mode);
-               TurnOn (A_UNDERLINE,  enter_underline_mode);
-               TurnOn (A_HORIZONTAL, enter_horizontal_hl_mode);
-               TurnOn (A_LEFT,       enter_left_hl_mode);
-               TurnOn (A_LOW,        enter_low_hl_mode);
-               TurnOn (A_RIGHT,      enter_right_hl_mode);
-               TurnOn (A_TOP,        enter_top_hl_mode);
-               TurnOn (A_VERTICAL,   enter_vertical_hl_mode);
+       SetColorsIf((pair != 0) || fix_pair0, previous_attr);
+    } else if (set_attributes && !used_ncv) {
+       if (turn_on || turn_off) {
+           TPUTS_TRACE("set_attributes");
+           tputs(tparm(set_attributes,
+                   (newmode & A_STANDOUT) != 0,
+                   (newmode & A_UNDERLINE) != 0,
+                   (newmode & A_REVERSE) != 0,
+                   (newmode & A_BLINK) != 0,
+                   (newmode & A_DIM) != 0,
+                   (newmode & A_BOLD) != 0,
+                   (newmode & A_INVIS) != 0,
+                   (newmode & A_PROTECT) != 0,
+                   (newmode & A_ALTCHARSET) != 0), 1, outc);
+           previous_attr &= ~A_COLOR;
        }
+       SetColorsIf((pair != 0) || fix_pair0, previous_attr);
+    } else {
 
-       if (reverse)
-               newmode |= A_REVERSE;
+       T(("turning %s off", _traceattr(turn_off)));
 
-       if (SP)
-               SP->_current_attr = newmode;
-       else
-               previous_attr = newmode;
+       TurnOff(A_ALTCHARSET, exit_alt_charset_mode);
 
-       returnCode(OK);
+       if (!SP || SP->_use_rmul) {
+           TurnOff(A_UNDERLINE, exit_underline_mode);
+       }
+
+       if (!SP || SP->_use_rmso) {
+           TurnOff(A_STANDOUT, exit_standout_mode);
+       }
+
+       if (turn_off && exit_attribute_mode) {
+           doPut(exit_attribute_mode);
+           turn_on |= (newmode & (chtype) (~A_COLOR));
+           previous_attr &= ~A_COLOR;
+       }
+       SetColorsIf((pair != 0) || fix_pair0, previous_attr);
+
+       T(("turning %s on", _traceattr(turn_on)));
+       /* *INDENT-OFF* */
+       TurnOn(A_ALTCHARSET,    enter_alt_charset_mode);
+       TurnOn(A_BLINK,         enter_blink_mode);
+       TurnOn(A_BOLD,          enter_bold_mode);
+       TurnOn(A_DIM,           enter_dim_mode);
+       TurnOn(A_REVERSE,       enter_reverse_mode);
+       TurnOn(A_STANDOUT,      enter_standout_mode);
+       TurnOn(A_PROTECT,       enter_protected_mode);
+       TurnOn(A_INVIS,         enter_secure_mode);
+       TurnOn(A_UNDERLINE,     enter_underline_mode);
+       TurnOn(A_HORIZONTAL,    enter_horizontal_hl_mode);
+       TurnOn(A_LEFT,          enter_left_hl_mode);
+       TurnOn(A_LOW,           enter_low_hl_mode);
+       TurnOn(A_RIGHT,         enter_right_hl_mode);
+       TurnOn(A_TOP,           enter_top_hl_mode);
+       TurnOn(A_VERTICAL,      enter_vertical_hl_mode);
+       /* *INDENT-ON* */
+
+    }
+
+    if (reverse)
+       newmode |= A_REVERSE;
+
+    if (SP)
+       SP->_current_attr = newmode;
+    else
+       previous_attr = newmode;
+
+    returnCode(OK);
 }
 
-int vidattr(attr_t newmode)
+int
+vidattr(attr_t newmode)
 {
-       T((T_CALLED("vidattr(%s)"), _traceattr(newmode)));
+    T((T_CALLED("vidattr(%s)"), _traceattr(newmode)));
 
-       returnCode(vidputs(newmode, _nc_outch));
+    returnCode(vidputs(newmode, _nc_outch));
 }
 
-chtype termattrs(void)
+chtype
+termattrs(void)
 {
-       chtype attrs = A_NORMAL;
+    chtype attrs = A_NORMAL;
 
-       if (enter_alt_charset_mode)
-               attrs |= A_ALTCHARSET;
+    if (enter_alt_charset_mode)
+       attrs |= A_ALTCHARSET;
 
-       if (enter_blink_mode)
-               attrs |= A_BLINK;
+    if (enter_blink_mode)
+       attrs |= A_BLINK;
 
-       if (enter_bold_mode)
-               attrs |= A_BOLD;
+    if (enter_bold_mode)
+       attrs |= A_BOLD;
 
-       if (enter_dim_mode)
-               attrs |= A_DIM;
+    if (enter_dim_mode)
+       attrs |= A_DIM;
 
-       if (enter_reverse_mode)
-               attrs |= A_REVERSE;
+    if (enter_reverse_mode)
+       attrs |= A_REVERSE;
 
-       if (enter_standout_mode)
-               attrs |= A_STANDOUT;
+    if (enter_standout_mode)
+       attrs |= A_STANDOUT;
 
-       if (enter_protected_mode)
-               attrs |= A_PROTECT;
+    if (enter_protected_mode)
+       attrs |= A_PROTECT;
 
-       if (enter_secure_mode)
-               attrs |= A_INVIS;
+    if (enter_secure_mode)
+       attrs |= A_INVIS;
 
-       if (enter_underline_mode)
-               attrs |= A_UNDERLINE;
+    if (enter_underline_mode)
+       attrs |= A_UNDERLINE;
 
-       if (SP->_coloron)
-               attrs |= A_COLOR;
+    if (SP->_coloron)
+       attrs |= A_COLOR;
 
-       return(attrs);
+    return (attrs);
 }
-