/****************************************************************************
- * Copyright (c) 1998-2016,2017 Free Software Foundation, Inc. *
+ * Copyright (c) 1998-2018,2019 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 *
#define CUR SP_TERMTYPE
#endif
-MODULE_ID("$Id: lib_color.c,v 1.117 2017/05/07 20:46:03 tom Exp $")
+MODULE_ID("$Id: lib_color.c,v 1.142 2019/12/22 00:57:53 tom Exp $")
#ifdef USE_TERM_DRIVER
#define CanChange InfoOf(SP_PARM).canchange
}
}
+static bool
+init_direct_colors(NCURSES_SP_DCL0)
+{
+ 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) {
+ ;
+ }
+
+ 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 (result->value != 0);
+}
+
/*
* Reset the color pair, e.g., to whatever color pair 0 is.
*/
* allow for default-color as a component of a color-pair.
*/
SP_PARM->_pair_limit += (1 + (2 * maxcolors));
+#if !NCURSES_EXT_COLORS
SP_PARM->_pair_limit = limit_PAIRS(SP_PARM->_pair_limit);
#endif
+#endif /* NCURSES_EXT_FUNCS */
SP_PARM->_pair_count = maxpairs;
SP_PARM->_color_count = maxcolors;
#if !USE_REENTRANT
COLORS = maxcolors;
#endif
- SP_PARM->_color_pairs = TYPE_CALLOC(colorpair_t, SP_PARM->_pair_limit);
+ ReservePairs(SP_PARM, 16);
if (SP_PARM->_color_pairs != 0) {
- 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);
-
+ 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));
SP_PARM->_coloron = 1;
- result = OK;
} else if (SP_PARM->_color_pairs != 0) {
FreeAndNull(SP_PARM->_color_pairs);
}
{
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;
}
}
+NCURSES_EXPORT(void)
+_nc_reserve_pairs(SCREEN *sp, int want)
+{
+ int have = sp->_pair_alloc;
+
+ if (have == 0)
+ have = 1;
+ while (have <= want)
+ have *= 2;
+ if (have > sp->_pair_limit)
+ have = sp->_pair_limit;
+
+ 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;
+ }
+}
+
/*
* Extension (1997/1/18) - Allow negative f/b values to set default color
* values.
maxcolors = MaxColors;
+ ReservePairs(sp, pair);
previous = sp->_color_pairs[pair];
#if NCURSES_EXT_FUNCS
if (sp->_default_color || sp->_assumed_color) {
color,
r, g, b));
- if (sp == 0)
+ if (sp == 0 || sp->_direct_color.value)
returnCode(result);
maxcolors = MaxColors;
int code = FALSE;
(void) SP_PARM;
- T((T_CALLED("has_colors()")));
+ T((T_CALLED("has_colors(%p)"), (void *) SP_PARM));
if (HasTerminal(SP_PARM)) {
#ifdef USE_TERM_DRIVER
code = HasColor;
if (color < 0 || !OkColorHi(color) || !sp->_coloron) {
result = ERR;
} else {
- int c_r = sp->_color_table[color].red;
- int c_g = sp->_color_table[color].green;
- int c_b = sp->_color_table[color].blue;
+ 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;
+ }
if (r)
*r = c_r;
if (!ValidPair(sp, pair)) {
result = ERR;
} else {
- int fg = FORE_OF(sp->_color_pairs[pair]);
- int bg = BACK_OF(sp->_color_pairs[pair]);
+ int fg;
+ int bg;
+ ReservePairs(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;
}
#endif
-#if USE_EXTENDED_COLORS
+#if NCURSES_EXT_COLORS
NCURSES_EXPORT(int)
NCURSES_SP_NAME(init_extended_pair) (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;
+ ReservePairs(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(extended_pair_content) (CURRENT_SCREEN, pair, f, b);
}
-#endif
-#endif
+
+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