ncurses-5.7/ncurses/widechar/lib_vid_attr.c - nest-learning-thermostat/5.1.5/ncurses - Git at Google

 /****************************************************************************
  * Copyright (c) 2002-2006,2007 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            *
  * "Software"), to deal in the Software without restriction, including      *
  * without limitation the rights to use, copy, modify, merge, publish,      *
  * distribute, distribute with modifications, sublicense, and/or sell       *
  * copies of the Software, and to permit persons to whom the Software is    *
  * furnished to do so, subject to the following conditions:                 *
  *                                                                          *
  * The above copyright notice and this permission notice shall be included  *
  * in all copies or substantial portions of the Software.                   *
  *                                                                          *
  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS  *
  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF               *
  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.   *
  * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,   *
  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR    *
  * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR    *
  * THE USE OR OTHER DEALINGS IN THE SOFTWARE.                               *
  *                                                                          *
  * Except as contained in this notice, the name(s) of the above copyright   *
  * holders shall not be used in advertising or otherwise to promote the     *
  * sale, use or other dealings in this Software without prior written       *
  * authorization.                                                           *
  ****************************************************************************/

 /****************************************************************************
  *  Author: Thomas E. Dickey                                                *
  ****************************************************************************/

 #include <curses.priv.h>
 #include <term.h>

 MODULE_ID("$Id: lib_vid_attr.c,v 1.5 2007/06/30 22:03:02 tom Exp $")

 #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

     newmode &= A_ATTRIBUTES;
     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_9(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)
 {
     T((T_CALLED("vid_attr(%s,%d)"), _traceattr(newmode), pair));
     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;

     T((T_CALLED("term_attrs()")));
     attrs = termattrs();

     /* 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);
 }
	/****************************************************************************
	* Copyright (c) 2002-2006,2007 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 *
	* "Software"), to deal in the Software without restriction, including *
	* without limitation the rights to use, copy, modify, merge, publish, *
	* distribute, distribute with modifications, sublicense, and/or sell *
	* copies of the Software, and to permit persons to whom the Software is *
	* furnished to do so, subject to the following conditions: *
	* *
	* The above copyright notice and this permission notice shall be included *
	* in all copies or substantial portions of the Software. *
	* *
	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS *
	* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF *
	* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. *
	* IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, *
	* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR *
	* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR *
	* THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
	* *
	* Except as contained in this notice, the name(s) of the above copyright *
	* holders shall not be used in advertising or otherwise to promote the *
	* sale, use or other dealings in this Software without prior written *
	* authorization. *
	****************************************************************************/

	/****************************************************************************
	* Author: Thomas E. Dickey *
	****************************************************************************/

	#include <curses.priv.h>
	#include <term.h>

	MODULE_ID("$Id: lib_vid_attr.c,v 1.5 2007/06/30 22:03:02 tom Exp $")

	#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

	newmode &= A_ATTRIBUTES;
	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_9(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)
	{
	T((T_CALLED("vid_attr(%s,%d)"), _traceattr(newmode), pair));
	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;

	T((T_CALLED("term_attrs()")));
	attrs = termattrs();

	/* 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);
	}