/****************************************************************************
- * Copyright (c) 1998 Free Software Foundation, Inc. *
+ * Copyright (c) 1998-2017,2018 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 *
/****************************************************************************
* 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
- *
*/
+#define NEW_PAIR_INTERNAL 1
+
#include <curses.priv.h>
+#include <new_pair.h>
+#include <tic.h>
-#include <term.h>
+#ifndef CUR
+#define CUR SP_TERMTYPE
+#endif
-MODULE_ID("$Id: lib_color.c,v 1.36 1999/10/03 00:20:37 Philippe.Blain Exp $")
+MODULE_ID("$Id: lib_color.c,v 1.138 2018/05/16 08:24:08 tom Exp $")
+#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
- * hystorical reasons. So we assign them in start_color() and also in
+ * historical reasons. So we assign them in start_color() and also in
* set_term()'s screen-switching logic.
*/
-int COLOR_PAIRS;
-int COLORS;
+#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
*/
#define RGB_ON 680
#define RGB_OFF 0
-
+/* *INDENT-OFF* */
static const color_t cga_palette[] =
{
- /* R G B */
- {RGB_OFF, RGB_OFF, RGB_OFF}, /* COLOR_BLACK */
- {RGB_ON, RGB_OFF, RGB_OFF}, /* COLOR_RED */
- {RGB_OFF, RGB_ON, RGB_OFF}, /* COLOR_GREEN */
- {RGB_ON, RGB_ON, RGB_OFF}, /* COLOR_YELLOW */
- {RGB_OFF, RGB_OFF, RGB_ON}, /* COLOR_BLUE */
- {RGB_ON, RGB_OFF, RGB_ON}, /* COLOR_MAGENTA */
- {RGB_OFF, RGB_ON, RGB_ON}, /* COLOR_CYAN */
- {RGB_ON, RGB_ON, RGB_ON}, /* COLOR_WHITE */
+ /* 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 */
- {0, 0, 0}, /* COLOR_BLACK */
- {120, 50, 100}, /* COLOR_RED */
- {240, 50, 100}, /* COLOR_GREEN */
- {180, 50, 100}, /* COLOR_YELLOW */
- {330, 50, 100}, /* COLOR_BLUE */
- {60, 50, 100}, /* COLOR_MAGENTA */
- {300, 50, 100}, /* COLOR_CYAN */
- {0, 50, 100}, /* COLOR_WHITE */
+ /* 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* */
+
+#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)
+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};
+ {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(int bg, int (*outc)(int))
+static void
+set_background_color(NCURSES_SP_DCLx int bg, NCURSES_SP_OUTC outc)
{
- if (set_a_background)
- {
- TPUTS_TRACE("set_a_background");
- tputs(tparm(set_a_background, bg), 1, outc);
- }
- else
- {
- TPUTS_TRACE("set_background");
- tputs(tparm(set_background, toggled_colors(bg)), 1, outc);
- }
+#ifdef USE_TERM_DRIVER
+ CallDriver_3(SP_PARM, td_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(int fg, int (*outc)(int))
+static void
+set_foreground_color(NCURSES_SP_DCLx int fg, NCURSES_SP_OUTC outc)
{
- if (set_a_foreground)
- {
- TPUTS_TRACE("set_a_foreground");
- tputs(tparm(set_a_foreground, fg), 1, outc);
- }
- else
- {
- TPUTS_TRACE("set_foreground");
- tputs(tparm(set_foreground, toggled_colors(fg)), 1, outc);
+#ifdef USE_TERM_DRIVER
+ CallDriver_3(SP_PARM, td_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;
+ }
}
+ }
}
-static bool set_original_colors(void)
+static bool
+init_direct_colors(NCURSES_SP_DCL0)
{
- if (orig_pair != 0) {
- TPUTS_TRACE("orig_pair");
- putp(orig_pair);
- return TRUE;
+ static NCURSES_CONST char name[] = "RGB";
+
+ int n;
+ const char *s;
+ int width;
+ rgb_bits_t *result = &(SP_PARM->_direct_color);
+
+ result->value = 0;
+
+ if (COLORS >= 8) {
+ /* find the number of bits needed for the maximum color value */
+ for (width = 0; (1 << width) - 1 < (COLORS - 1); ++width) {
+ ;
}
- else if (orig_colors != NULL)
- {
- TPUTS_TRACE("orig_colors");
- putp(orig_colors);
- return TRUE;
+
+ if ((n = tigetflag(name)) > 0) {
+ n = (width + 2) / 3;
+ result->bits.red = UChar(n);
+ result->bits.green = UChar(n);
+ result->bits.blue = UChar(width - (2 * n));
+ } else if ((n = tigetnum(name)) > 0) {
+ result->bits.red = UChar(n);
+ result->bits.green = UChar(n);
+ result->bits.blue = UChar(n);
+ } else if ((s = tigetstr(name)) != 0 && VALID_STRING(s)) {
+ int red = n;
+ int green = n;
+ int blue = width - (2 * n);
+
+ switch (sscanf(s, "%d/%d/%d", &red, &green, &blue)) {
+ default:
+ blue = width - (2 * n);
+ /* FALLTHRU */
+ case 1:
+ green = n;
+ /* FALLTHRU */
+ case 2:
+ red = n;
+ /* FALLTHRU */
+ case 3:
+ /* okay */
+ break;
+ }
+ result->bits.red = UChar(red);
+ result->bits.green = UChar(green);
+ result->bits.blue = UChar(blue);
}
- return FALSE;
+ }
+ return (result->value != 0);
}
-int start_color(void)
+/*
+ * Reset the color pair, e.g., to whatever color pair 0 is.
+ */
+static bool
+reset_color_pair(NCURSES_SP_DCL0)
{
- T((T_CALLED("start_color()")));
+#ifdef USE_TERM_DRIVER
+ return CallDriver(SP_PARM, td_rescol);
+#else
+ bool result = FALSE;
+
+ (void) SP_PARM;
+ if (orig_pair != 0) {
+ (void) NCURSES_PUTP2("orig_pair", orig_pair);
+ result = TRUE;
+ }
+ return result;
+#endif
+}
- if (set_original_colors() != TRUE)
- {
- set_foreground_color(COLOR_WHITE, _nc_outch);
- set_background_color(COLOR_BLACK, _nc_outch);
+/*
+ * 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, td_rescolors);
+#else
+ if (orig_colors != 0) {
+ NCURSES_PUTP2("orig_colors", 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 !NCURSES_EXT_COLORS
+ /*
+ * Without ext-colors, we cannot represent more than 256 color pairs.
+ */
+ if (maxpairs > 256)
+ maxpairs = 256;
+#endif
+
+ if (maxpairs > 0 && maxcolors > 0) {
+ SP_PARM->_pair_limit = maxpairs;
- if (max_pairs != -1)
- COLOR_PAIRS = SP->_pair_count = max_pairs;
- else
- returnCode(ERR);
- if ((SP->_color_pairs = typeCalloc(unsigned short, max_pairs)) == 0)
- returnCode(ERR);
- SP->_color_pairs[0] = PAIR_OF(COLOR_WHITE, COLOR_BLACK);
- if (max_colors != -1)
- COLORS = SP->_color_count = max_colors;
- else
- returnCode(ERR);
- SP->_coloron = 1;
+#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));
+ SP_PARM->_pair_limit = limit_PAIRS(SP_PARM->_pair_limit);
+#endif
+ SP_PARM->_pair_count = maxpairs;
+ SP_PARM->_color_count = maxcolors;
+#if !USE_REENTRANT
+ COLOR_PAIRS = maxpairs;
+ COLORS = maxcolors;
+#endif
- if ((SP->_color_table = typeMalloc(color_t, COLORS)) == 0)
- returnCode(ERR);
- if (hue_lightness_saturation)
- memcpy(SP->_color_table, hls_palette, sizeof(color_t) * COLORS);
- else
- memcpy(SP->_color_table, cga_palette, sizeof(color_t) * COLORS);
+ _nc_reserve_pairs(SP_PARM, 16);
+ if (SP_PARM->_color_pairs != 0) {
+ if (init_direct_colors(NCURSES_SP_ARG)) {
+ result = OK;
+ } else {
+ SP_PARM->_color_table = TYPE_CALLOC(color_t, maxcolors);
+ if (SP_PARM->_color_table != 0) {
+ MakeColorPair(SP_PARM->_color_pairs[0],
+ default_fg(NCURSES_SP_ARG),
+ default_bg(NCURSES_SP_ARG));
+ init_color_table(NCURSES_SP_ARG);
+
+ result = OK;
+ }
+ }
+ if (result == OK) {
+ T(("started color: COLORS = %d, COLOR_PAIRS = %d",
+ COLORS, COLOR_PAIRS));
- T(("started color: COLORS = %d, COLOR_PAIRS = %d", COLORS, COLOR_PAIRS));
+ SP_PARM->_coloron = 1;
+ } else if (SP_PARM->_color_pairs != 0) {
+ FreeAndNull(SP_PARM->_color_pairs);
+ }
+ }
+ } else {
+ result = OK;
+ }
+ }
+ returnCode(result);
+}
- returnCode(OK);
+#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)
+static void
+rgb2hls(int r, int g, int b, int *h, int *l, int *s)
/* convert RGB to HLS system */
{
- short min, max, t;
+ int min, max, t;
- if ((min = g < r ? g : r) > b) min = b;
- if ((max = g > r ? g : r) < b) max = b;
+ if ((min = g < r ? g : r) > b)
+ min = b;
+ if ((max = g > r ? g : r) < b)
+ max = b;
/* calculate lightness */
- *l = (min + max) / 20;
+ *l = ((min + max) / 20);
- if (min == max) /* black, white and all shades of gray */
- {
+ if (min == max) { /* black, white and all shades of gray */
*h = 0;
*s = 0;
return;
/* calculate saturation */
if (*l < 50)
- *s = ((max - min) * 100) / (max + min);
- else *s = ((max - min) * 100) / (2000 - max - min);
+ *s = (((max - min) * 100) / (max + min));
+ else
+ *s = (((max - min) * 100) / (2000 - max - min));
/* calculate hue */
if (r == max)
- t = 120 + ((g - b) * 60) / (max - min);
+ t = (120 + ((g - b) * 60) / (max - min));
+ else if (g == max)
+ t = (240 + ((b - r) * 60) / (max - min));
else
- if (g == max)
- t = 240 + ((b - r) * 60) / (max - min);
- else
- t = 360 + ((r - g) * 60) / (max - min);
+ t = (360 + ((r - g) * 60) / (max - min));
+
+ *h = (t % 360);
+}
+
+/*
+ * Change all cells which use(d) a given color pair to force a repaint.
+ */
+NCURSES_EXPORT(void)
+_nc_change_pair(SCREEN *sp, int pair)
+{
+ int y, x;
+
+ if (CurScreen(sp)->_clear)
+ return;
+#if NO_LEAKS
+ if (_nc_globals.leak_checking)
+ return;
+#endif
+
+ for (y = 0; y <= CurScreen(sp)->_maxy; y++) {
+ struct ldat *ptr = &(CurScreen(sp)->_line[y]);
+ bool changed = FALSE;
+ for (x = 0; x <= CurScreen(sp)->_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);
+ }
+}
+
+NCURSES_EXPORT(colorpair_t *)
+_nc_reserve_pairs(SCREEN *sp, int want)
+{
+ colorpair_t *result = 0;
+ int have = sp->_pair_alloc;
+
+ if ((sp->_color_pairs != 0) && (want < sp->_pair_alloc)) {
+ result = &(sp->_color_pairs[want]);
+ } else {
+
+ if (have == 0)
+ have = 1;
+ while (have <= want)
+ have *= 2;
+ if (have > sp->_pair_limit)
+ have = sp->_pair_limit;
- *h = t % 360;
+ if (sp->_color_pairs == 0) {
+ sp->_color_pairs = TYPE_CALLOC(colorpair_t, have);
+ } else if (have > sp->_pair_alloc) {
+#if NCURSES_EXT_COLORS
+ colorpair_t *next;
+
+ if ((next = typeCalloc(colorpair_t, have)) == 0)
+ _nc_err_abort(MSG_NO_MEMORY);
+ memcpy(next, sp->_color_pairs, (size_t) sp->_pair_alloc * sizeof(*next));
+ _nc_copy_pairs(sp, next, sp->_color_pairs, sp->_pair_alloc);
+ free(sp->_color_pairs);
+ sp->_color_pairs = next;
+#else
+ TYPE_REALLOC(colorpair_t, have, sp->_color_pairs);
+ if (sp->_color_pairs != 0) {
+ memset(sp->_color_pairs + sp->_pair_alloc, 0,
+ sizeof(colorpair_t) * (size_t) (have - sp->_pair_alloc));
+ }
+#endif
+ }
+ if (sp->_color_pairs != 0) {
+ sp->_pair_alloc = have;
+ result = &(sp->_color_pairs[want]);
+ }
+ }
+ return result;
}
/*
* Extension (1997/1/18) - Allow negative f/b values to set default color
* values.
*/
-int init_pair(short pair, short f, short b)
-{
- unsigned result;
-
- T((T_CALLED("init_pair(%d,%d,%d)"), pair, f, b));
-
- if ((pair < 1) || (pair >= COLOR_PAIRS))
- returnCode(ERR);
- if (SP->_default_color)
- {
- if (f < 0)
- f = C_MASK;
- if (b < 0)
- b = C_MASK;
- if (f >= COLORS && f != C_MASK)
- returnCode(ERR);
- if (b >= COLORS && b != C_MASK)
- returnCode(ERR);
+NCURSES_EXPORT(int)
+_nc_init_pair(SCREEN *sp, int pair, int f, int b)
+{
+ static colorpair_t null_pair;
+ colorpair_t result = null_pair;
+ colorpair_t previous;
+ int maxcolors;
+
+ T((T_CALLED("init_pair(%p,%d,%d,%d)"), (void *) sp, pair, f, b));
+
+ if (!ValidPair(sp, pair))
+ returnCode(ERR);
+
+ maxcolors = MaxColors;
+
+ _nc_reserve_pairs(sp, pair);
+ previous = sp->_color_pairs[pair];
+#if NCURSES_EXT_FUNCS
+ if (sp->_default_color || sp->_assumed_color) {
+ bool isDefault = FALSE;
+ bool wasDefault = FALSE;
+ int default_pairs = sp->_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);
}
- else
- if ((f < 0) || (f >= COLORS)
- || (b < 0) || (b >= COLORS))
- 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).
+ * Check if the table entry that we are going to init/update used
+ * default colors.
*/
- result = PAIR_OF(f,b);
- if (SP->_color_pairs[pair] != 0
- && SP->_color_pairs[pair] != result) {
- int y, x;
- attr_t z = COLOR_PAIR(pair);
-
- for (y = 0; y <= curscr->_maxy; y++) {
- struct ldat *ptr = &(curscr->_line[y]);
- bool changed = FALSE;
- for (x = 0; x <= curscr->_maxx; x++) {
- if ((ptr->text[x] & A_COLOR) == z) {
- /* Set the old cell to zero to ensure it will be
- updated on the next doupdate() */
- ptr->text[x] = 0;
- CHANGED_CELL(ptr,x);
- changed = TRUE;
- }
- }
- if (changed)
- _nc_make_oldhash(y);
- }
+ if (isDefaultColor(FORE_OF(previous))
+ || isDefaultColor(BACK_OF(previous)))
+ 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;
}
- SP->_color_pairs[pair] = result;
-
- if (initialize_pair)
- {
- const color_t *tp = hue_lightness_saturation ? hls_palette : cga_palette;
-
- T(("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));
-
- if (initialize_pair)
- {
- TPUTS_TRACE("initialize_pair");
- putp(tparm(initialize_pair,
- pair,
- tp[f].red, tp[f].green, tp[f].blue,
- tp[b].red, tp[b].green, tp[b].blue));
- }
+
+ /*
+ * 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->_pair_count + default_pairs)) {
+ returnCode(ERR);
+ }
+ sp->_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).
+ */
+ MakeColorPair(result, f, b);
+ if ((FORE_OF(previous) != 0
+ || BACK_OF(previous) != 0)
+ && !isSamePair(previous, result)) {
+ _nc_change_pair(sp, pair);
+ }
- returnCode(OK);
+ _nc_reset_color_pair(sp, pair, &result);
+ sp->_color_pairs[pair] = result;
+ _nc_set_color_pair(sp, pair, cpINIT);
+
+ if (GET_SCREEN_PAIR(sp) == pair)
+ SET_SCREEN_PAIR(sp, (int) (~0)); /* force attribute update */
+
+#ifdef USE_TERM_DRIVER
+ CallDriver_3(sp, td_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)",
+ (int) pair,
+ (int) tp[f].red, (int) tp[f].green, (int) tp[f].blue,
+ (int) tp[b].red, (int) tp[b].green, (int) tp[b].blue));
+
+ NCURSES_PUTP2("initialize_pair",
+ TPARM_7(initialize_pair,
+ pair,
+ (int) tp[f].red,
+ (int) tp[f].green,
+ (int) tp[f].blue,
+ (int) tp[b].red,
+ (int) tp[b].green,
+ (int) tp[b].blue));
+ }
+#endif
+
+ returnCode(OK);
+}
+
+NCURSES_EXPORT(int)
+NCURSES_SP_NAME(init_pair) (NCURSES_SP_DCLx
+ NCURSES_PAIRS_T pair,
+ NCURSES_COLOR_T f,
+ NCURSES_COLOR_T b)
+{
+ return _nc_init_pair(SP_PARM, pair, f, b);
+}
+
+#if NCURSES_SP_FUNCS
+NCURSES_EXPORT(int)
+init_pair(NCURSES_COLOR_T pair, NCURSES_COLOR_T f, NCURSES_COLOR_T b)
+{
+ return NCURSES_SP_NAME(init_pair) (CURRENT_SCREEN, pair, f, b);
}
+#endif
+
+#define okRGB(n) ((n) >= 0 && (n) <= 1000)
-int init_color(short color, short r, short g, short b)
+NCURSES_EXPORT(int)
+_nc_init_color(SCREEN *sp, int color, int r, int g, int b)
{
- T((T_CALLED("init_color(%d,%d,%d,%d)"), color, r, g, b));
+ int result = ERR;
+ int maxcolors;
+
+ T((T_CALLED("init_color(%p,%d,%d,%d,%d)"),
+ (void *) sp,
+ color,
+ r, g, b));
+
+ if (sp == 0 || sp->_direct_color.value)
+ returnCode(result);
- if (initialize_color == NULL)
- returnCode(ERR);
+ maxcolors = MaxColors;
- if (color < 0 || color >= COLORS)
- returnCode(ERR);
- if (r < 0 || r > 1000 || g < 0 || g > 1000 || b < 0 || b > 1000)
- returnCode(ERR);
+ if (InitColor
+ && sp->_coloron
+ && (color >= 0 && OkColorHi(color))
+ && (okRGB(r) && okRGB(g) && okRGB(b))) {
- if (hue_lightness_saturation)
+ sp->_color_table[color].init = 1;
+ sp->_color_table[color].r = r;
+ sp->_color_table[color].g = g;
+ sp->_color_table[color].b = b;
+
+ if (UseHlsPalette) {
rgb2hls(r, g, b,
- &SP->_color_table[color].red,
- &SP->_color_table[color].green,
- &SP->_color_table[color].blue);
- else
- {
- SP->_color_table[color].red = r;
- SP->_color_table[color].green = g;
- SP->_color_table[color].blue = b;
+ &sp->_color_table[color].red,
+ &sp->_color_table[color].green,
+ &sp->_color_table[color].blue);
+ } else {
+ sp->_color_table[color].red = r;
+ sp->_color_table[color].green = g;
+ sp->_color_table[color].blue = b;
}
- if (initialize_color)
- {
- TPUTS_TRACE("initialize_color");
- putp(tparm(initialize_color, color, r, g, b));
- }
- returnCode(OK);
+#ifdef USE_TERM_DRIVER
+ CallDriver_4(sp, td_initcolor, color, r, g, b);
+#else
+ NCURSES_PUTP2("initialize_color",
+ TPARM_4(initialize_color, color, r, g, b));
+#endif
+ sp->_color_defs = max(color + 1, sp->_color_defs);
+
+ result = OK;
+ }
+ returnCode(result);
}
-bool can_change_color(void)
+NCURSES_EXPORT(int)
+NCURSES_SP_NAME(init_color) (NCURSES_SP_DCLx
+ NCURSES_COLOR_T color,
+ NCURSES_COLOR_T r,
+ NCURSES_COLOR_T g,
+ NCURSES_COLOR_T b)
{
- T((T_CALLED("can_change_color()")));
- returnCode ((can_change != 0) ? TRUE : FALSE);
+ return _nc_init_color(SP_PARM, color, r, g, b);
}
-bool has_colors(void)
+#if NCURSES_SP_FUNCS
+NCURSES_EXPORT(int)
+init_color(NCURSES_COLOR_T color,
+ NCURSES_COLOR_T r,
+ NCURSES_COLOR_T g,
+ NCURSES_COLOR_T b)
{
- T((T_CALLED("has_colors()")));
- returnCode (((max_colors != -1) && (max_pairs != -1)
- && (((set_foreground != NULL)
- && (set_background != NULL))
- || ((set_a_foreground != NULL)
- && (set_a_background != NULL))
- || set_color_pair)) ? TRUE : FALSE);
+ return NCURSES_SP_NAME(init_color) (CURRENT_SCREEN, color, r, g, b);
}
+#endif
-int color_content(short color, short *r, short *g, short *b)
+NCURSES_EXPORT(bool)
+NCURSES_SP_NAME(can_change_color) (NCURSES_SP_DCL)
{
- T((T_CALLED("color_content(%d,%p,%p,%p)"), color, r, g, b));
- if (color < 0 || color >= COLORS)
- returnCode(ERR);
+ int result = FALSE;
- if (r) *r = SP->_color_table[color].red;
- if (g) *g = SP->_color_table[color].green;
- if (b) *b = SP->_color_table[color].blue;
- returnCode(OK);
+ T((T_CALLED("can_change_color(%p)"), (void *) SP_PARM));
+
+ if (HasTerminal(SP_PARM) && (CanChange != 0)) {
+ result = TRUE;
+ }
+
+ returnCode(result);
}
-int pair_content(short pair, short *f, short *b)
+#if NCURSES_SP_FUNCS
+NCURSES_EXPORT(bool)
+can_change_color(void)
{
- T((T_CALLED("pair_content(%d,%p,%p)"), pair, f, b));
+ return NCURSES_SP_NAME(can_change_color) (CURRENT_SCREEN);
+}
+#endif
- if ((pair < 0) || (pair >= COLOR_PAIRS))
- returnCode(ERR);
- if (f) *f = ((SP->_color_pairs[pair] >> C_SHIFT) & C_MASK);
- if (b) *b = (SP->_color_pairs[pair] & C_MASK);
+NCURSES_EXPORT(bool)
+NCURSES_SP_NAME(has_colors) (NCURSES_SP_DCL0)
+{
+ int code = FALSE;
- returnCode(OK);
+ (void) SP_PARM;
+ T((T_CALLED("has_colors()")));
+ if (HasTerminal(SP_PARM)) {
+#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);
}
-void _nc_do_color(int pair, bool reverse, int (*outc)(int))
+#if NCURSES_SP_FUNCS
+NCURSES_EXPORT(bool)
+has_colors(void)
{
- short fg, bg;
+ return NCURSES_SP_NAME(has_colors) (CURRENT_SCREEN);
+}
+#endif
- if (pair == 0)
- {
- if (orig_pair)
- {
- TPUTS_TRACE("orig_pair");
- tputs(orig_pair, 1, outc);
+static int
+_nc_color_content(SCREEN *sp, int color, int *r, int *g, int *b)
+{
+ int result = ERR;
+ int maxcolors;
+
+ T((T_CALLED("color_content(%p,%d,%p,%p,%p)"),
+ (void *) sp,
+ color,
+ (void *) r,
+ (void *) g,
+ (void *) b));
+
+ if (sp == 0)
+ returnCode(result);
+
+ maxcolors = MaxColors;
+
+ if (color < 0 || !OkColorHi(color) || !sp->_coloron) {
+ result = ERR;
+ } else {
+ int c_r, c_g, c_b;
+
+ if (sp->_direct_color.value) {
+ rgb_bits_t *work = &(sp->_direct_color);
+
+#define max_direct_color(name) ((1 << work->bits.name) - 1)
+#define value_direct_color(max) (1000 * ((color >> bitoff) & max)) / max
+
+ int max_r = max_direct_color(red);
+ int max_g = max_direct_color(green);
+ int max_b = max_direct_color(blue);
+
+ int bitoff = 0;
+
+ c_b = value_direct_color(max_b);
+ bitoff += work->bits.blue;
+
+ c_g = value_direct_color(max_g);
+ bitoff += work->bits.green;
+
+ c_r = value_direct_color(max_r);
+
+ } else {
+ c_r = sp->_color_table[color].red;
+ c_g = sp->_color_table[color].green;
+ c_b = sp->_color_table[color].blue;
}
- else if (set_color_pair)
- {
+
+ 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);
+}
+
+NCURSES_EXPORT(int)
+NCURSES_SP_NAME(color_content) (NCURSES_SP_DCLx
+ NCURSES_COLOR_T color,
+ NCURSES_COLOR_T *r,
+ NCURSES_COLOR_T *g,
+ NCURSES_COLOR_T *b)
+{
+ int my_r, my_g, my_b;
+ int rc = _nc_color_content(SP_PARM, color, &my_r, &my_g, &my_b);
+ if (rc == OK) {
+ *r = limit_COLOR(my_r);
+ *g = limit_COLOR(my_g);
+ *b = limit_COLOR(my_b);
+ }
+ return rc;
+}
+
+#if NCURSES_SP_FUNCS
+NCURSES_EXPORT(int)
+color_content(NCURSES_COLOR_T color,
+ NCURSES_COLOR_T *r,
+ NCURSES_COLOR_T *g,
+ NCURSES_COLOR_T *b)
+{
+ return NCURSES_SP_NAME(color_content) (CURRENT_SCREEN, color, r, g, b);
+}
+#endif
+
+NCURSES_EXPORT(int)
+_nc_pair_content(SCREEN *sp, int pair, int *f, int *b)
+{
+ int result;
+
+ T((T_CALLED("pair_content(%p,%d,%p,%p)"),
+ (void *) sp,
+ (int) pair,
+ (void *) f,
+ (void *) b));
+
+ if (!ValidPair(sp, pair)) {
+ result = ERR;
+ } else {
+ int fg;
+ int bg;
+
+ _nc_reserve_pairs(sp, pair);
+ fg = FORE_OF(sp->_color_pairs[pair]);
+ bg = BACK_OF(sp->_color_pairs[pair]);
+#if NCURSES_EXT_FUNCS
+ if (isDefaultColor(fg))
+ fg = -1;
+ if (isDefaultColor(bg))
+ bg = -1;
+#endif
+
+ if (f)
+ *f = fg;
+ if (b)
+ *b = bg;
+
+ TR(TRACE_ATTRS, ("...pair_content(%p,%d,%d,%d)",
+ (void *) sp,
+ (int) pair,
+ (int) fg, (int) bg));
+ result = OK;
+ }
+ returnCode(result);
+}
+
+NCURSES_EXPORT(int)
+NCURSES_SP_NAME(pair_content) (NCURSES_SP_DCLx
+ NCURSES_PAIRS_T pair,
+ NCURSES_COLOR_T *f,
+ NCURSES_COLOR_T *b)
+{
+ int my_f, my_b;
+ int rc = _nc_pair_content(SP_PARM, pair, &my_f, &my_b);
+ if (rc == OK) {
+ *f = limit_COLOR(my_f);
+ *b = limit_COLOR(my_b);
+ }
+ return rc;
+}
+
+#if NCURSES_SP_FUNCS
+NCURSES_EXPORT(int)
+pair_content(NCURSES_COLOR_T pair, NCURSES_COLOR_T *f, NCURSES_COLOR_T *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
+ int old_pair,
+ int pair,
+ int reverse,
+ NCURSES_SP_OUTC outc)
+{
+#ifdef USE_TERM_DRIVER
+ CallDriver_4(SP_PARM, td_docolor, old_pair, pair, reverse, outc);
+#else
+ int fg = COLOR_DEFAULT;
+ int bg = COLOR_DEFAULT;
+ int old_fg = -1;
+ int old_bg = -1;
+
+ if (!ValidPair(SP_PARM, pair)) {
+ return;
+ } else if (pair != 0) {
+ if (set_color_pair) {
TPUTS_TRACE("set_color_pair");
- tputs(tparm(set_color_pair, pair), 1, outc);
- }
- else
- {
- set_foreground_color(COLOR_WHITE, outc);
- set_background_color(COLOR_BLACK, outc);
+ NCURSES_SP_NAME(tputs) (NCURSES_SP_ARGx
+ TPARM_1(set_color_pair, pair),
+ 1, outc);
+ return;
+ } else if (SP_PARM != 0) {
+ if (_nc_pair_content(SP_PARM, pair, &fg, &bg) == ERR)
+ return;
}
}
- else
- {
- if (set_color_pair)
- {
- TPUTS_TRACE("set_color_pair");
- tputs(tparm(set_color_pair, pair), 1, outc);
+
+ if (old_pair >= 0
+ && SP_PARM != 0
+ && _nc_pair_content(SP_PARM, 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
- {
- pair_content(pair, &fg, &bg);
- if (reverse) {
- short xx = fg;
- fg = bg;
- bg = xx;
- }
+ } else {
+ reset_color_pair(NCURSES_SP_ARG);
+ if (old_pair < 0 && pair <= 0)
+ return;
+ }
- T(("setting colors: pair = %d, fg = %d, bg = %d", pair, fg, bg));
+#if NCURSES_EXT_FUNCS
+ if (isDefaultColor(fg))
+ fg = default_fg(NCURSES_SP_ARG);
+ if (isDefaultColor(bg))
+ bg = default_bg(NCURSES_SP_ARG);
+#endif
- if (fg == C_MASK || bg == C_MASK)
- {
- if (set_original_colors() != TRUE)
- {
- if (fg == C_MASK)
- set_foreground_color(COLOR_WHITE, outc);
- if (bg == C_MASK)
- set_background_color(COLOR_BLACK, outc);
- }
- }
- if (fg != C_MASK)
- {
- set_foreground_color(fg, outc);
- }
- if (bg != C_MASK)
- {
- set_background_color(bg, outc);
- }
+ if (reverse) {
+ int 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(int old_pair, int pair, int reverse, NCURSES_OUTC outc)
+{
+ SetSafeOutcWrapper(outc);
+ NCURSES_SP_NAME(_nc_do_color) (CURRENT_SCREEN,
+ old_pair,
+ pair,
+ reverse,
+ _nc_outc_wrapper);
+}
+#endif
+
+#if NCURSES_EXT_COLORS
+NCURSES_EXPORT(int)
+NCURSES_SP_NAME(init_extended_pair) (NCURSES_SP_DCLx int pair, int f, int b)
+{
+ return _nc_init_pair(SP_PARM, pair, f, b);
+}
+
+NCURSES_EXPORT(int)
+NCURSES_SP_NAME(init_extended_color) (NCURSES_SP_DCLx
+ int color,
+ int r, int g, int b)
+{
+ return _nc_init_color(SP_PARM, color, r, g, b);
+}
+
+NCURSES_EXPORT(int)
+NCURSES_SP_NAME(extended_color_content) (NCURSES_SP_DCLx
+ int color,
+ int *r, int *g, int *b)
+{
+ return _nc_color_content(SP_PARM, color, r, g, b);
+}
+
+NCURSES_EXPORT(int)
+NCURSES_SP_NAME(extended_pair_content) (NCURSES_SP_DCLx
+ int pair,
+ int *f, int *b)
+{
+ return _nc_pair_content(SP_PARM, pair, f, b);
+}
+
+NCURSES_EXPORT(void)
+NCURSES_SP_NAME(reset_color_pairs) (NCURSES_SP_DCL0)
+{
+ if (SP_PARM != 0) {
+ if (SP_PARM->_color_pairs) {
+ _nc_free_ordered_pairs(SP_PARM);
+ free(SP_PARM->_color_pairs);
+ SP_PARM->_color_pairs = 0;
+ SP_PARM->_pair_alloc = 0;
+ _nc_reserve_pairs(SP_PARM, 16);
+ clearok(CurScreen(SP_PARM), TRUE);
+ touchwin(StdScreen(SP_PARM));
}
}
}
+
+#if NCURSES_SP_FUNCS
+NCURSES_EXPORT(int)
+init_extended_pair(int pair, int f, int b)
+{
+ return NCURSES_SP_NAME(init_extended_pair) (CURRENT_SCREEN, pair, f, b);
+}
+
+NCURSES_EXPORT(int)
+init_extended_color(int color, int r, int g, int b)
+{
+ return NCURSES_SP_NAME(init_extended_color) (CURRENT_SCREEN,
+ color,
+ r, g, b);
+}
+
+NCURSES_EXPORT(int)
+extended_color_content(int color, int *r, int *g, int *b)
+{
+ return NCURSES_SP_NAME(extended_color_content) (CURRENT_SCREEN,
+ color,
+ r, g, b);
+}
+
+NCURSES_EXPORT(int)
+extended_pair_content(int pair, int *f, int *b)
+{
+ return NCURSES_SP_NAME(extended_pair_content) (CURRENT_SCREEN, pair, f, b);
+}
+
+NCURSES_EXPORT(void)
+reset_color_pairs(void)
+{
+ NCURSES_SP_NAME(reset_color_pairs) (CURRENT_SCREEN);
+}
+#endif /* NCURSES_SP_FUNCS */
+#endif /* NCURSES_EXT_COLORS */
projects / ncurses.git / blobdiff