X-Git-Url: http://ncurses.scripts.mit.edu/?p=ncurses.git;a=blobdiff_plain;f=ncurses%2Fwidechar%2Flib_vid_attr.c;h=c41a09ff9f7665da01d097ef0adaf11b9db37070;hp=06e7880dd4d05b533c612a9d2b3c70df8a68e50a;hb=55ccd2b959766810cf7db8d1c4462f338ce0afc8;hpb=46722468f47c2b77b3987729b4bcf2321cccfd01

diff --git a/ncurses/widechar/lib_vid_attr.c b/ncurses/widechar/lib_vid_attr.c
index 06e7880d..c41a09ff 100644
--- a/ncurses/widechar/lib_vid_attr.c
+++ b/ncurses/widechar/lib_vid_attr.c
@@ -1,5 +1,5 @@
 /****************************************************************************
- * Copyright (c) 2002 Free Software Foundation, Inc.                        *
+ * Copyright (c) 2002-2004,2005 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            *
@@ -27,68 +27,248 @@
  ****************************************************************************/
 
 /****************************************************************************
- *  Author: Thomas E. Dickey 2002                                           *
+ *  Author: Thomas E. Dickey                                                *
  ****************************************************************************/
 
 #include <curses.priv.h>
 #include <term.h>
 
-MODULE_ID("$Id: lib_vid_attr.c,v 1.1 2002/05/11 20:55:26 tom Exp $")
+MODULE_ID("$Id: lib_vid_attr.c,v 1.3 2005/01/29 18:34:00 tom Exp $")
 
-#define set_color(mode, pair) mode &= ~A_COLOR; mode |= COLOR_PAIR(pair)
+#define doPut(mode) TPUTS_TRACE(#mode); tputs(mode, 1, outc)
+
+#define TurnOn(mask,mode) \
+	if ((turn_on & mask) && mode) { doPut(mode); }
+
+#define TurnOff(mask,mode) \
+	if ((turn_off & mask) && mode) { doPut(mode); turn_off &= ~mask; }
+
+	/* if there is no current screen, assume we *can* do color */
+#define SetColorsIf(why, old_attr, old_pair) \
+	if (can_color && (why)) { \
+		TR(TRACE_ATTRS, ("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(old_pair, pair, reverse, outc); \
+		} \
+	}
+
+#define set_color(mode, pair) mode &= ALL_BUT_COLOR; mode |= COLOR_PAIR(pair)
 
 NCURSES_EXPORT(int)
 vid_puts(attr_t newmode, short pair, void *opts GCC_UNUSED, int (*outc) (int))
 {
+#if NCURSES_EXT_COLORS
+    static attr_t previous_attr = A_NORMAL;
+    static int previous_pair = 0;
+
+    attr_t turn_on, turn_off;
+    bool reverse = FALSE;
+    bool can_color = (SP == 0 || SP->_coloron);
+#if NCURSES_EXT_FUNCS
+    bool fix_pair0 = (SP != 0 && SP->_coloron && !SP->_default_color);
+#else
+#define fix_pair0 FALSE
+#endif
+
+    T((T_CALLED("vid_puts(%s,%d)"), _traceattr(newmode), pair));
+
+    /* this allows us to go on whether or not newterm() has been called */
+    if (SP) {
+	previous_attr = AttrOf(SCREEN_ATTRS(SP));
+	previous_pair = GetPair(SCREEN_ATTRS(SP));
+    }
+
+    TR(TRACE_ATTRS, ("previous attribute was %s, %d",
+		     _traceattr(previous_attr), previous_pair));
+
+#if !USE_XMC_SUPPORT
+    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 ((pair != 0
+	 || fix_pair0)
+	&& (no_color_video > 0)) {
+	/*
+	 * If we had chosen the A_xxx definitions to correspond to the
+	 * no_color_video mask, we could simply shift it up and mask off the
+	 * attributes.  But we did not (actually copied Solaris' definitions).
+	 * However, this is still simpler/faster than a lookup table.
+	 *
+	 * The 63 corresponds to A_STANDOUT, A_UNDERLINE, A_REVERSE, A_BLINK,
+	 * A_DIM, A_BOLD which are 1:1 with no_color_video.  The bits that
+	 * correspond to A_INVIS, A_PROTECT (192) must be shifted up 1 and
+	 * A_ALTCHARSET (256) down 2 to line up.  We use the NCURSES_BITS
+	 * macro so this will work properly for the wide-character layout.
+	 */
+	unsigned value = no_color_video;
+	attr_t mask = NCURSES_BITS((value & 63)
+				   | ((value & 192) << 1)
+				   | ((value & 256) >> 2), 8);
+
+	if ((mask & A_REVERSE) != 0
+	    && (newmode & A_REVERSE) != 0) {
+	    reverse = TRUE;
+	    mask &= ~A_REVERSE;
+	}
+	newmode &= ~mask;
+    }
+
+    if (newmode == previous_attr
+	&& pair == previous_pair)
+	returnCode(OK);
+
+    if (reverse) {
+	newmode &= ~A_REVERSE;
+    }
+
+    turn_off = (~newmode & previous_attr) & ALL_BUT_COLOR;
+    turn_on = (newmode & ~previous_attr) & ALL_BUT_COLOR;
+
+    SetColorsIf(((pair == 0) && !fix_pair0), previous_attr, previous_pair);
+
+    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) {
+	    if (exit_attribute_mode) {
+		doPut(exit_attribute_mode);
+	    } else {
+		if (!SP || SP->_use_rmul) {
+		    TurnOff(A_UNDERLINE, exit_underline_mode);
+		}
+		if (!SP || SP->_use_rmso) {
+		    TurnOff(A_STANDOUT, exit_standout_mode);
+		}
+	    }
+	    previous_attr &= ALL_BUT_COLOR;
+	    previous_pair = 0;
+	}
+
+	SetColorsIf((pair != 0) || fix_pair0, previous_attr, previous_pair);
+    } else if (set_attributes) {
+	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 &= ALL_BUT_COLOR;
+	    previous_pair = 0;
+	}
+	SetColorsIf((pair != 0) || fix_pair0, previous_attr, previous_pair);
+    } else {
+
+	TR(TRACE_ATTRS, ("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 & ALL_BUT_COLOR);
+	    previous_attr &= ALL_BUT_COLOR;
+	    previous_pair = 0;
+	}
+	SetColorsIf((pair != 0) || fix_pair0, previous_attr, previous_pair);
+
+	TR(TRACE_ATTRS, ("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);
+#if USE_WIDEC_SUPPORT
+	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);
+#endif
+	/* *INDENT-ON* */
+
+    }
+
+    if (reverse)
+	newmode |= A_REVERSE;
+
+    if (SP) {
+	SetAttr(SCREEN_ATTRS(SP), newmode);
+	SetPair(SCREEN_ATTRS(SP), pair);
+    } else {
+	previous_attr = newmode;
+	previous_pair = pair;
+    }
+
+    returnCode(OK);
+#else
     T((T_CALLED("vid_puts(%s,%d)"), _traceattr(newmode), pair));
     set_color(newmode, pair);
     returnCode(vidputs(newmode, outc));
+#endif
 }
 
 #undef vid_attr
 NCURSES_EXPORT(int)
-vid_attr(attr_t newmode, short pair, void *opts GCC_UNUSED)
+vid_attr(attr_t newmode, short pair, void *opts)
 {
     T((T_CALLED("vid_attr(%s,%d)"), _traceattr(newmode), pair));
-    set_color(newmode, pair);
-    returnCode(vidputs(newmode, _nc_outch));
+    returnCode(vid_puts(newmode, pair, opts, _nc_outch));
 }
 
+/*
+ * This implementation uses the same mask values for A_xxx and WA_xxx, so
+ * we can use termattrs() for part of the logic.
+ */
 NCURSES_EXPORT(attr_t)
 term_attrs(void)
 {
-    attr_t attrs = WA_NORMAL;
+    attr_t attrs;
 
     T((T_CALLED("term_attrs()")));
-    if (enter_alt_charset_mode)
-	attrs |= WA_ALTCHARSET;
-
-    if (enter_blink_mode)
-	attrs |= WA_BLINK;
-
-    if (enter_bold_mode)
-	attrs |= WA_BOLD;
-
-    if (enter_dim_mode)
-	attrs |= WA_DIM;
-
-    if (enter_reverse_mode)
-	attrs |= WA_REVERSE;
-
-    if (enter_standout_mode)
-	attrs |= WA_STANDOUT;
-
-    if (enter_protected_mode)
-	attrs |= WA_PROTECT;
-
-    if (enter_secure_mode)
-	attrs |= WA_INVIS;
-
-    if (enter_underline_mode)
-	attrs |= WA_UNDERLINE;
+    attrs = termattrs();
 
-    if (SP->_coloron)
-	attrs |= A_COLOR;
+    /* these are only supported for wide-character mode */
+    if (enter_horizontal_hl_mode)
+	attrs |= WA_HORIZONTAL;
+    if (enter_left_hl_mode)
+	attrs |= WA_LEFT;
+    if (enter_low_hl_mode)
+	attrs |= WA_LOW;
+    if (enter_right_hl_mode)
+	attrs |= WA_RIGHT;
+    if (enter_top_hl_mode)
+	attrs |= WA_TOP;
+    if (enter_vertical_hl_mode)
+	attrs |= WA_VERTICAL;
 
     returnAttr(attrs);
 }