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diff --git a/ncurses-5.9/ncurses/base/lib_color.c b/ncurses-5.9/ncurses/base/lib_color.c
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+/****************************************************************************
+ * Copyright (c) 1998-2009,2010 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: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995 *
+ * and: Eric S. Raymond <esr@snark.thyrsus.com> *
+ * and: Thomas E. Dickey 1996-on *
+ * and: Juergen Pfeifer 2009 *
+ ****************************************************************************/
+
+/* lib_color.c
+ *
+ * Handles color emulation of SYS V curses
+ */
+
+#include <curses.priv.h>
+#include <tic.h>
+
+#ifndef CUR
+#define CUR SP_TERMTYPE
+#endif
+
+MODULE_ID("$Id$")
+
+#ifdef USE_TERM_DRIVER
+#define CanChange InfoOf(SP_PARM).canchange
+#define DefaultPalette InfoOf(SP_PARM).defaultPalette
+#define HasColor InfoOf(SP_PARM).hascolor
+#define InitColor InfoOf(SP_PARM).initcolor
+#define MaxColors InfoOf(SP_PARM).maxcolors
+#define MaxPairs InfoOf(SP_PARM).maxpairs
+#define UseHlsPalette (DefaultPalette == _nc_hls_palette)
+#else
+#define CanChange can_change
+#define DefaultPalette (hue_lightness_saturation ? hls_palette : cga_palette)
+#define HasColor has_color
+#define InitColor initialize_color
+#define MaxColors max_colors
+#define MaxPairs max_pairs
+#define UseHlsPalette (hue_lightness_saturation)
+#endif
+
+#ifndef USE_TERM_DRIVER
+/*
+ * These should be screen structure members. They need to be globals for
+ * historical reasons. So we assign them in start_color() and also in
+ * set_term()'s screen-switching logic.
+ */
+#if USE_REENTRANT
+NCURSES_EXPORT(int)
+NCURSES_PUBLIC_VAR(COLOR_PAIRS) (void)
+{
+ return SP ? SP->_pair_count : -1;
+}
+NCURSES_EXPORT(int)
+NCURSES_PUBLIC_VAR(COLORS) (void)
+{
+ return SP ? SP->_color_count : -1;
+}
+#else
+NCURSES_EXPORT_VAR(int) COLOR_PAIRS = 0;
+NCURSES_EXPORT_VAR(int) COLORS = 0;
+#endif
+#endif /* !USE_TERM_DRIVER */
+
+#define DATA(r,g,b) {r,g,b, 0,0,0, 0}
+
+#define TYPE_CALLOC(type,elts) typeCalloc(type, (unsigned)(elts))
+
+#define MAX_PALETTE 8
+
+#define OkColorHi(n) (((n) < COLORS) && ((n) < maxcolors))
+#define InPalette(n) ((n) >= 0 && (n) < MAX_PALETTE)
+
+/*
+ * Given a RGB range of 0..1000, we'll normally set the individual values
+ * to about 2/3 of the maximum, leaving full-range for bold/bright colors.
+ */
+#define RGB_ON 680
+#define RGB_OFF 0
+/* *INDENT-OFF* */
+static const color_t cga_palette[] =
+{
+ /* R G B */
+ DATA(RGB_OFF, RGB_OFF, RGB_OFF), /* COLOR_BLACK */
+ DATA(RGB_ON, RGB_OFF, RGB_OFF), /* COLOR_RED */
+ DATA(RGB_OFF, RGB_ON, RGB_OFF), /* COLOR_GREEN */
+ DATA(RGB_ON, RGB_ON, RGB_OFF), /* COLOR_YELLOW */
+ DATA(RGB_OFF, RGB_OFF, RGB_ON), /* COLOR_BLUE */
+ DATA(RGB_ON, RGB_OFF, RGB_ON), /* COLOR_MAGENTA */
+ DATA(RGB_OFF, RGB_ON, RGB_ON), /* COLOR_CYAN */
+ DATA(RGB_ON, RGB_ON, RGB_ON), /* COLOR_WHITE */
+};
+
+static const color_t hls_palette[] =
+{
+ /* H L S */
+ DATA( 0, 0, 0), /* COLOR_BLACK */
+ DATA( 120, 50, 100), /* COLOR_RED */
+ DATA( 240, 50, 100), /* COLOR_GREEN */
+ DATA( 180, 50, 100), /* COLOR_YELLOW */
+ DATA( 330, 50, 100), /* COLOR_BLUE */
+ DATA( 60, 50, 100), /* COLOR_MAGENTA */
+ DATA( 300, 50, 100), /* COLOR_CYAN */
+ DATA( 0, 50, 100), /* COLOR_WHITE */
+};
+
+#ifdef USE_TERM_DRIVER
+NCURSES_EXPORT_VAR(const color_t*) _nc_cga_palette = cga_palette;
+NCURSES_EXPORT_VAR(const color_t*) _nc_hls_palette = hls_palette;
+#endif
+
+/* *INDENT-ON* */
+
+/*
+ * Ensure that we use color pairs only when colors have been started, and also
+ * that the index is within the limits of the table which we allocated.
+ */
+#define ValidPair(pair) \
+ ((SP_PARM != 0) && (pair >= 0) && (pair < SP_PARM->_pair_limit) && SP_PARM->_coloron)
+
+#if NCURSES_EXT_FUNCS
+/*
+ * These are called from _nc_do_color(), which in turn is called from
+ * vidattr - so we have to assume that sp may be null.
+ */
+static int
+default_fg(NCURSES_SP_DCL0)
+{
+ return (SP_PARM != 0) ? SP_PARM->_default_fg : COLOR_WHITE;
+}
+
+static int
+default_bg(NCURSES_SP_DCL0)
+{
+ return SP_PARM != 0 ? SP_PARM->_default_bg : COLOR_BLACK;
+}
+#else
+#define default_fg(sp) COLOR_WHITE
+#define default_bg(sp) COLOR_BLACK
+#endif
+
+#ifndef USE_TERM_DRIVER
+/*
+ * SVr4 curses is known to interchange color codes (1,4) and (3,6), possibly
+ * to maintain compatibility with a pre-ANSI scheme. The same scheme is
+ * also used in the FreeBSD syscons.
+ */
+static int
+toggled_colors(int c)
+{
+ if (c < 16) {
+ static const int table[] =
+ {0, 4, 2, 6, 1, 5, 3, 7,
+ 8, 12, 10, 14, 9, 13, 11, 15};
+ c = table[c];
+ }
+ return c;
+}
+#endif
+
+static void
+set_background_color(NCURSES_SP_DCLx int bg, NCURSES_SP_OUTC outc)
+{
+#ifdef USE_TERM_DRIVER
+ CallDriver_3(SP_PARM, color, FALSE, bg, outc);
+#else
+ if (set_a_background) {
+ TPUTS_TRACE("set_a_background");
+ NCURSES_SP_NAME(tputs) (NCURSES_SP_ARGx
+ TPARM_1(set_a_background, bg),
+ 1, outc);
+ } else {
+ TPUTS_TRACE("set_background");
+ NCURSES_SP_NAME(tputs) (NCURSES_SP_ARGx
+ TPARM_1(set_background, toggled_colors(bg)),
+ 1, outc);
+ }
+#endif
+}
+
+static void
+set_foreground_color(NCURSES_SP_DCLx int fg, NCURSES_SP_OUTC outc)
+{
+#ifdef USE_TERM_DRIVER
+ CallDriver_3(SP_PARM, color, TRUE, fg, outc);
+#else
+ if (set_a_foreground) {
+ TPUTS_TRACE("set_a_foreground");
+ NCURSES_SP_NAME(tputs) (NCURSES_SP_ARGx
+ TPARM_1(set_a_foreground, fg),
+ 1, outc);
+ } else {
+ TPUTS_TRACE("set_foreground");
+ NCURSES_SP_NAME(tputs) (NCURSES_SP_ARGx
+ TPARM_1(set_foreground, toggled_colors(fg)),
+ 1, outc);
+ }
+#endif
+}
+
+static void
+init_color_table(NCURSES_SP_DCL0)
+{
+ const color_t *tp = DefaultPalette;
+ int n;
+
+ assert(tp != 0);
+
+ for (n = 0; n < COLORS; n++) {
+ if (InPalette(n)) {
+ SP_PARM->_color_table[n] = tp[n];
+ } else {
+ SP_PARM->_color_table[n] = tp[n % MAX_PALETTE];
+ if (UseHlsPalette) {
+ SP_PARM->_color_table[n].green = 100;
+ } else {
+ if (SP_PARM->_color_table[n].red)
+ SP_PARM->_color_table[n].red = 1000;
+ if (SP_PARM->_color_table[n].green)
+ SP_PARM->_color_table[n].green = 1000;
+ if (SP_PARM->_color_table[n].blue)
+ SP_PARM->_color_table[n].blue = 1000;
+ }
+ }
+ }
+}
+
+/*
+ * Reset the color pair, e.g., to whatever color pair 0 is.
+ */
+static bool
+reset_color_pair(NCURSES_SP_DCL0)
+{
+#ifdef USE_TERM_DRIVER
+ return CallDriver(SP_PARM, rescol);
+#else
+ bool result = FALSE;
+
+ (void) SP_PARM;
+ if (orig_pair != 0) {
+ TPUTS_TRACE("orig_pair");
+ putp(orig_pair);
+ result = TRUE;
+ }
+ return result;
+#endif
+}
+
+/*
+ * Reset color pairs and definitions. Actually we do both more to accommodate
+ * badly-written terminal descriptions than for the relatively rare case where
+ * someone has changed the color definitions.
+ */
+NCURSES_EXPORT(bool)
+NCURSES_SP_NAME(_nc_reset_colors) (NCURSES_SP_DCL0)
+{
+ int result = FALSE;
+
+ T((T_CALLED("_nc_reset_colors(%p)"), (void *) SP_PARM));
+ if (SP_PARM->_color_defs > 0)
+ SP_PARM->_color_defs = -(SP_PARM->_color_defs);
+ if (reset_color_pair(NCURSES_SP_ARG))
+ result = TRUE;
+
+#ifdef USE_TERM_DRIVER
+ result = CallDriver(SP_PARM, rescolors);
+#else
+ if (orig_colors != 0) {
+ TPUTS_TRACE("orig_colors");
+ putp(orig_colors);
+ result = TRUE;
+ }
+#endif
+ returnBool(result);
+}
+
+#if NCURSES_SP_FUNCS
+NCURSES_EXPORT(bool)
+_nc_reset_colors(void)
+{
+ return NCURSES_SP_NAME(_nc_reset_colors) (CURRENT_SCREEN);
+}
+#endif
+
+NCURSES_EXPORT(int)
+NCURSES_SP_NAME(start_color) (NCURSES_SP_DCL0)
+{
+ int result = ERR;
+ int maxpairs = 0, maxcolors = 0;
+
+ T((T_CALLED("start_color(%p)"), (void *) SP_PARM));
+
+ if (SP_PARM == 0) {
+ result = ERR;
+ } else if (SP_PARM->_coloron) {
+ result = OK;
+ } else {
+ maxpairs = MaxPairs;
+ maxcolors = MaxColors;
+ if (reset_color_pair(NCURSES_SP_ARG) != TRUE) {
+ set_foreground_color(NCURSES_SP_ARGx
+ default_fg(NCURSES_SP_ARG),
+ NCURSES_SP_NAME(_nc_outch));
+ set_background_color(NCURSES_SP_ARGx
+ default_bg(NCURSES_SP_ARG),
+ NCURSES_SP_NAME(_nc_outch));
+ }
+
+ if (maxpairs > 0 && maxcolors > 0) {
+ SP_PARM->_pair_limit = maxpairs;
+
+#if NCURSES_EXT_FUNCS
+ /*
+ * If using default colors, allocate extra space in table to
+ * allow for default-color as a component of a color-pair.
+ */
+ SP_PARM->_pair_limit += (1 + (2 * maxcolors));
+#endif
+ SP_PARM->_pair_count = maxpairs;
+ SP_PARM->_color_count = maxcolors;
+#if !USE_REENTRANT
+ COLOR_PAIRS = maxpairs;
+ COLORS = maxcolors;
+#endif
+
+ SP_PARM->_color_pairs = TYPE_CALLOC(colorpair_t, SP_PARM->_pair_limit);
+ if (SP_PARM->_color_pairs != 0) {
+ SP_PARM->_color_table = TYPE_CALLOC(color_t, maxcolors);
+ if (SP_PARM->_color_table != 0) {
+ SP_PARM->_color_pairs[0] = PAIR_OF(default_fg(NCURSES_SP_ARG),
+ default_bg(NCURSES_SP_ARG));
+ init_color_table(NCURSES_SP_ARG);
+
+ T(("started color: COLORS = %d, COLOR_PAIRS = %d",
+ COLORS, COLOR_PAIRS));
+
+ SP_PARM->_coloron = 1;
+ result = OK;
+ } else if (SP_PARM->_color_pairs != 0) {
+ FreeAndNull(SP_PARM->_color_pairs);
+ }
+ }
+ } else {
+ result = OK;
+ }
+ }
+ returnCode(result);
+}
+
+#if NCURSES_SP_FUNCS
+NCURSES_EXPORT(int)
+start_color(void)
+{
+ return NCURSES_SP_NAME(start_color) (CURRENT_SCREEN);
+}
+#endif
+
+/* This function was originally written by Daniel Weaver <danw@znyx.com> */
+static void
+rgb2hls(short r, short g, short b, short *h, short *l, short *s)
+/* convert RGB to HLS system */
+{
+ short min, max, t;
+
+ if ((min = g < r ? g : r) > b)
+ min = b;
+ if ((max = g > r ? g : r) < b)
+ max = b;
+
+ /* calculate lightness */
+ *l = (short) ((min + max) / 20);
+
+ if (min == max) { /* black, white and all shades of gray */
+ *h = 0;
+ *s = 0;
+ return;
+ }
+
+ /* calculate saturation */
+ if (*l < 50)
+ *s = (short) (((max - min) * 100) / (max + min));
+ else
+ *s = (short) (((max - min) * 100) / (2000 - max - min));
+
+ /* calculate hue */
+ if (r == max)
+ t = (short) (120 + ((g - b) * 60) / (max - min));
+ else if (g == max)
+ t = (short) (240 + ((b - r) * 60) / (max - min));
+ else
+ t = (short) (360 + ((r - g) * 60) / (max - min));
+
+ *h = t % 360;
+}
+
+/*
+ * Extension (1997/1/18) - Allow negative f/b values to set default color
+ * values.
+ */
+NCURSES_EXPORT(int)
+NCURSES_SP_NAME(init_pair) (NCURSES_SP_DCLx short pair, short f, short b)
+{
+ colorpair_t result;
+ colorpair_t previous;
+ int maxcolors;
+
+ T((T_CALLED("init_pair(%p,%d,%d,%d)"), (void *) SP_PARM, pair, f, b));
+
+ if (!ValidPair(pair))
+ returnCode(ERR);
+
+ maxcolors = MaxColors;
+
+ previous = SP_PARM->_color_pairs[pair];
+#if NCURSES_EXT_FUNCS
+ if (SP_PARM->_default_color) {
+ bool isDefault = FALSE;
+ bool wasDefault = FALSE;
+ int default_pairs = SP_PARM->_default_pairs;
+
+ /*
+ * Map caller's color number, e.g., -1, 0, 1, .., 7, etc., into
+ * internal unsigned values which we will store in the _color_pairs[]
+ * table.
+ */
+ if (isDefaultColor(f)) {
+ f = COLOR_DEFAULT;
+ isDefault = TRUE;
+ } else if (!OkColorHi(f)) {
+ returnCode(ERR);
+ }
+
+ if (isDefaultColor(b)) {
+ b = COLOR_DEFAULT;
+ isDefault = TRUE;
+ } else if (!OkColorHi(b)) {
+ returnCode(ERR);
+ }
+
+ /*
+ * Check if the table entry that we are going to init/update used
+ * default colors.
+ */
+ if ((FORE_OF(previous) == COLOR_DEFAULT)
+ || (BACK_OF(previous) == COLOR_DEFAULT))
+ wasDefault = TRUE;
+
+ /*
+ * Keep track of the number of entries in the color pair table which
+ * used a default color.
+ */
+ if (isDefault && !wasDefault) {
+ ++default_pairs;
+ } else if (wasDefault && !isDefault) {
+ --default_pairs;
+ }
+
+ /*
+ * As an extension, ncurses allows the pair number to exceed the
+ * terminal's color_pairs value for pairs using a default color.
+ *
+ * Note that updating a pair which used a default color with one
+ * that does not will decrement the count - and possibly interfere
+ * with sequentially adding new pairs.
+ */
+ if (pair > (SP_PARM->_pair_count + default_pairs)) {
+ returnCode(ERR);
+ }
+ SP_PARM->_default_pairs = default_pairs;
+ } else
+#endif
+ {
+ if ((f < 0) || !OkColorHi(f)
+ || (b < 0) || !OkColorHi(b)
+ || (pair < 1))
+ returnCode(ERR);
+ }
+
+ /*
+ * When a pair's content is changed, replace its colors (if pair was
+ * initialized before a screen update is performed replacing original
+ * pair colors with the new ones).
+ */
+ result = PAIR_OF(f, b);
+ if (previous != 0
+ && previous != result) {
+ int y, x;
+
+ for (y = 0; y <= CurScreen(SP_PARM)->_maxy; y++) {
+ struct ldat *ptr = &(CurScreen(SP_PARM)->_line[y]);
+ bool changed = FALSE;
+ for (x = 0; x <= CurScreen(SP_PARM)->_maxx; x++) {
+ if (GetPair(ptr->text[x]) == pair) {
+ /* Set the old cell to zero to ensure it will be
+ updated on the next doupdate() */
+ SetChar(ptr->text[x], 0, 0);
+ CHANGED_CELL(ptr, x);
+ changed = TRUE;
+ }
+ }
+ if (changed)
+ NCURSES_SP_NAME(_nc_make_oldhash) (NCURSES_SP_ARGx y);
+ }
+ }
+
+ SP_PARM->_color_pairs[pair] = result;
+ if (GET_SCREEN_PAIR(SP_PARM) == pair)
+ SET_SCREEN_PAIR(SP_PARM, (chtype) (~0)); /* force attribute update */
+
+#ifdef USE_TERM_DRIVER
+ CallDriver_3(SP_PARM, initpair, pair, f, b);
+#else
+ if (initialize_pair && InPalette(f) && InPalette(b)) {
+ const color_t *tp = DefaultPalette;
+
+ TR(TRACE_ATTRS,
+ ("initializing pair: pair = %d, fg=(%d,%d,%d), bg=(%d,%d,%d)",
+ pair,
+ tp[f].red, tp[f].green, tp[f].blue,
+ tp[b].red, tp[b].green, tp[b].blue));
+
+ TPUTS_TRACE("initialize_pair");
+ putp(TPARM_7(initialize_pair,
+ pair,
+ tp[f].red, tp[f].green, tp[f].blue,
+ tp[b].red, tp[b].green, tp[b].blue));
+ }
+#endif
+
+ returnCode(OK);
+}
+
+#if NCURSES_SP_FUNCS
+NCURSES_EXPORT(int)
+init_pair(short pair, short f, short b)
+{
+ return NCURSES_SP_NAME(init_pair) (CURRENT_SCREEN, pair, f, b);
+}
+#endif
+
+#define okRGB(n) ((n) >= 0 && (n) <= 1000)
+
+NCURSES_EXPORT(int)
+NCURSES_SP_NAME(init_color) (NCURSES_SP_DCLx
+ short color, short r, short g, short b)
+{
+ int result = ERR;
+ int maxcolors;
+
+ T((T_CALLED("init_color(%p,%d,%d,%d,%d)"),
+ (void *) SP_PARM,
+ color,
+ r, g, b));
+
+ if (SP_PARM == 0)
+ returnCode(result);
+
+ maxcolors = MaxColors;
+
+ if (InitColor
+ && SP_PARM->_coloron
+ && (color >= 0 && OkColorHi(color))
+ && (okRGB(r) && okRGB(g) && okRGB(b))) {
+
+ SP_PARM->_color_table[color].init = 1;
+ SP_PARM->_color_table[color].r = r;
+ SP_PARM->_color_table[color].g = g;
+ SP_PARM->_color_table[color].b = b;
+
+ if (UseHlsPalette) {
+ rgb2hls(r, g, b,
+ &SP_PARM->_color_table[color].red,
+ &SP_PARM->_color_table[color].green,
+ &SP_PARM->_color_table[color].blue);
+ } else {
+ SP_PARM->_color_table[color].red = r;
+ SP_PARM->_color_table[color].green = g;
+ SP_PARM->_color_table[color].blue = b;
+ }
+
+#ifdef USE_TERM_DRIVER
+ CallDriver_4(SP_PARM, initcolor, color, r, g, b);
+#else
+ TPUTS_TRACE("initialize_color");
+ putp(TPARM_4(initialize_color, color, r, g, b));
+#endif
+ SP_PARM->_color_defs = max(color + 1, SP_PARM->_color_defs);
+
+ result = OK;
+ }
+ returnCode(result);
+}
+
+#if NCURSES_SP_FUNCS
+NCURSES_EXPORT(int)
+init_color(short color, short r, short g, short b)
+{
+ return NCURSES_SP_NAME(init_color) (CURRENT_SCREEN, color, r, g, b);
+}
+#endif
+
+NCURSES_EXPORT(bool)
+NCURSES_SP_NAME(can_change_color) (NCURSES_SP_DCL)
+{
+ T((T_CALLED("can_change_color(%p)"), (void *) SP_PARM));
+ returnCode((CanChange != 0) ? TRUE : FALSE);
+}
+
+#if NCURSES_SP_FUNCS
+NCURSES_EXPORT(bool)
+can_change_color(void)
+{
+ return NCURSES_SP_NAME(can_change_color) (CURRENT_SCREEN);
+}
+#endif
+
+NCURSES_EXPORT(bool)
+NCURSES_SP_NAME(has_colors) (NCURSES_SP_DCL0)
+{
+ int code;
+
+ (void) SP_PARM;
+ T((T_CALLED("has_colors()")));
+#ifdef USE_TERM_DRIVER
+ code = HasColor;
+#else
+ code = ((VALID_NUMERIC(max_colors) && VALID_NUMERIC(max_pairs)
+ && (((set_foreground != NULL)
+ && (set_background != NULL))
+ || ((set_a_foreground != NULL)
+ && (set_a_background != NULL))
+ || set_color_pair)) ? TRUE : FALSE);
+#endif
+ returnCode(code);
+}
+
+#if NCURSES_SP_FUNCS
+NCURSES_EXPORT(bool)
+has_colors(void)
+{
+ return NCURSES_SP_NAME(has_colors) (CURRENT_SCREEN);
+}
+#endif
+
+NCURSES_EXPORT(int)
+NCURSES_SP_NAME(color_content) (NCURSES_SP_DCLx
+ short color, short *r, short *g, short *b)
+{
+ int result = ERR;
+ int maxcolors;
+
+ T((T_CALLED("color_content(%p,%d,%p,%p,%p)"),
+ (void *) SP_PARM,
+ color,
+ (void *) r,
+ (void *) g,
+ (void *) b));
+
+ if (SP_PARM == 0)
+ returnCode(result);
+
+ maxcolors = MaxColors;
+
+ if (color < 0 || !OkColorHi(color) || !SP_PARM->_coloron) {
+ result = ERR;
+ } else {
+ NCURSES_COLOR_T c_r = SP_PARM->_color_table[color].red;
+ NCURSES_COLOR_T c_g = SP_PARM->_color_table[color].green;
+ NCURSES_COLOR_T c_b = SP_PARM->_color_table[color].blue;
+
+ if (r)
+ *r = c_r;
+ if (g)
+ *g = c_g;
+ if (b)
+ *b = c_b;
+
+ TR(TRACE_ATTRS, ("...color_content(%d,%d,%d,%d)",
+ color, c_r, c_g, c_b));
+ result = OK;
+ }
+ returnCode(result);
+}
+
+#if NCURSES_SP_FUNCS
+NCURSES_EXPORT(int)
+color_content(short color, short *r, short *g, short *b)
+{
+ return NCURSES_SP_NAME(color_content) (CURRENT_SCREEN, color, r, g, b);
+}
+#endif
+
+NCURSES_EXPORT(int)
+NCURSES_SP_NAME(pair_content) (NCURSES_SP_DCLx
+ short pair, short *f, short *b)
+{
+ int result;
+
+ T((T_CALLED("pair_content(%p,%d,%p,%p)"),
+ (void *) SP_PARM,
+ pair,
+ (void *) f,
+ (void *) b));
+
+ if (!ValidPair(pair)) {
+ result = ERR;
+ } else {
+ NCURSES_COLOR_T fg = FORE_OF(SP_PARM->_color_pairs[pair]);
+ NCURSES_COLOR_T bg = BACK_OF(SP_PARM->_color_pairs[pair]);
+
+#if NCURSES_EXT_FUNCS
+ if (fg == COLOR_DEFAULT)
+ fg = -1;
+ if (bg == COLOR_DEFAULT)
+ bg = -1;
+#endif
+
+ if (f)
+ *f = fg;
+ if (b)
+ *b = bg;
+
+ TR(TRACE_ATTRS, ("...pair_content(%p,%d,%d,%d)",
+ (void *) SP_PARM,
+ pair,
+ fg, bg));
+ result = OK;
+ }
+ returnCode(result);
+}
+
+#if NCURSES_SP_FUNCS
+NCURSES_EXPORT(int)
+pair_content(short pair, short *f, short *b)
+{
+ return NCURSES_SP_NAME(pair_content) (CURRENT_SCREEN, pair, f, b);
+}
+#endif
+
+NCURSES_EXPORT(void)
+NCURSES_SP_NAME(_nc_do_color) (NCURSES_SP_DCLx
+ short old_pair,
+ short pair,
+ bool reverse,
+ NCURSES_SP_OUTC outc)
+{
+#ifdef USE_TERM_DRIVER
+ CallDriver_4(SP_PARM, docolor, old_pair, pair, reverse, outc);
+#else
+ NCURSES_COLOR_T fg = COLOR_DEFAULT;
+ NCURSES_COLOR_T bg = COLOR_DEFAULT;
+ NCURSES_COLOR_T old_fg, old_bg;
+
+ if (!ValidPair(pair)) {
+ return;
+ } else if (pair != 0) {
+ if (set_color_pair) {
+ TPUTS_TRACE("set_color_pair");
+ NCURSES_SP_NAME(tputs) (NCURSES_SP_ARGx
+ TPARM_1(set_color_pair, pair),
+ 1, outc);
+ return;
+ } else if (SP_PARM != 0) {
+ pair_content((short) pair, &fg, &bg);
+ }
+ }
+
+ if (old_pair >= 0
+ && SP_PARM != 0
+ && pair_content(old_pair, &old_fg, &old_bg) != ERR) {
+ if ((isDefaultColor(fg) && !isDefaultColor(old_fg))
+ || (isDefaultColor(bg) && !isDefaultColor(old_bg))) {
+#if NCURSES_EXT_FUNCS
+ /*
+ * A minor optimization - but extension. If "AX" is specified in
+ * the terminal description, treat it as screen's indicator of ECMA
+ * SGR 39 and SGR 49, and assume the two sequences are independent.
+ */
+ if (SP_PARM->_has_sgr_39_49
+ && isDefaultColor(old_bg)
+ && !isDefaultColor(old_fg)) {
+ NCURSES_SP_NAME(tputs) (NCURSES_SP_ARGx "\033[39m", 1, outc);
+ } else if (SP_PARM->_has_sgr_39_49
+ && isDefaultColor(old_fg)
+ && !isDefaultColor(old_bg)) {
+ NCURSES_SP_NAME(tputs) (NCURSES_SP_ARGx "\033[49m", 1, outc);
+ } else
+#endif
+ reset_color_pair(NCURSES_SP_ARG);
+ }
+ } else {
+ reset_color_pair(NCURSES_SP_ARG);
+ if (old_pair < 0)
+ return;
+ }
+
+#if NCURSES_EXT_FUNCS
+ if (isDefaultColor(fg))
+ fg = (short) default_fg(NCURSES_SP_ARG);
+ if (isDefaultColor(bg))
+ bg = (short) default_bg(NCURSES_SP_ARG);
+#endif
+
+ if (reverse) {
+ NCURSES_COLOR_T xx = fg;
+ fg = bg;
+ bg = xx;
+ }
+
+ TR(TRACE_ATTRS, ("setting colors: pair = %d, fg = %d, bg = %d", pair,
+ fg, bg));
+
+ if (!isDefaultColor(fg)) {
+ set_foreground_color(NCURSES_SP_ARGx fg, outc);
+ }
+ if (!isDefaultColor(bg)) {
+ set_background_color(NCURSES_SP_ARGx bg, outc);
+ }
+#endif
+}
+
+#if NCURSES_SP_FUNCS
+NCURSES_EXPORT(void)
+_nc_do_color(short old_pair, short pair, bool reverse, NCURSES_OUTC outc)
+{
+ SetSafeOutcWrapper(outc);
+ NCURSES_SP_NAME(_nc_do_color) (CURRENT_SCREEN,
+ old_pair,
+ pair,
+ reverse,
+ _nc_outc_wrapper);
+}
+#endif
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-07 06:26:49 +0000