+ if (use_colors) {
+ switch (ch) {
+ case 'f':
+ *fg = (NCURSES_COLOR_T) (*fg + 1);
+ break;
+ case 'F':
+ *fg = (NCURSES_COLOR_T) (*fg - 1);
+ break;
+ case 'b':
+ *bg = (NCURSES_COLOR_T) (*bg + 1);
+ break;
+ case 'B':
+ *bg = (NCURSES_COLOR_T) (*bg - 1);
+ break;
+ case 't':
+ *tx = (NCURSES_COLOR_T) (*tx + 1);
+ break;
+ case 'T':
+ *tx = (NCURSES_COLOR_T) (*tx - 1);
+ break;
+ default:
+ beep();
+ error = TRUE;
+ break;
+ }
+ if (*fg >= COLORS)
+ *fg = (NCURSES_COLOR_T) min_colors;
+ if (*fg < min_colors)
+ *fg = (NCURSES_COLOR_T) (COLORS - 1);
+ if (*bg >= COLORS)
+ *bg = (NCURSES_COLOR_T) min_colors;
+ if (*bg < min_colors)
+ *bg = (NCURSES_COLOR_T) (COLORS - 1);
+ if (*tx >= COLORS)
+ *tx = -1;
+ if (*tx < -1)
+ *tx = (NCURSES_COLOR_T) (COLORS - 1);
+ } else {
+ beep();
+ error = TRUE;
+ }
+ return error;
+}
+
+static void
+adjust_attr_string(int adjust)
+{
+ char save = attr_test_string[0];
+ int first = ((int) UChar(save)) + adjust;
+ int j, k;
+
+ if (first >= ATTRSTRING_1ST) {
+ for (j = 0, k = first; j < MAX_ATTRSTRING; ++j, ++k) {
+ if (k > ATTRSTRING_END)
+ break;
+ attr_test_string[j] = (char) k;
+ if (((k + 1 - first) % 5) == 0) {
+ if (++j >= MAX_ATTRSTRING)
+ break;
+ attr_test_string[j] = ' ';
+ }
+ }
+ if ((LEN_ATTRSTRING - j) > 5) {
+ attr_test_string[0] = save;
+ adjust_attr_string(adjust - 1);
+ } else {
+ while (j < MAX_ATTRSTRING)
+ attr_test_string[j++] = ' ';
+ attr_test_string[j] = '\0';
+ }
+ }
+}
+
+/*
+ * Prefer the right-end of the string for starting, since that maps to the
+ * VT100 line-drawing.
+ */
+static int
+default_attr_string(void)
+{
+ int result = (ATTRSTRING_END - LEN_ATTRSTRING);
+ result += (LEN_ATTRSTRING / 5);
+ if (result < ATTRSTRING_1ST)
+ result = ATTRSTRING_1ST;
+ return result;
+}
+
+static void
+init_attr_string(void)
+{
+ attr_test_string[0] = (char) default_attr_string();
+ adjust_attr_string(0);
+}
+
+static int
+show_attr(WINDOW *win, int row, int skip, bool arrow, chtype attr, const char *name)
+{
+ int ncv = get_ncv();
+ chtype test = attr & (chtype) (~A_ALTCHARSET);
+
+ if (arrow)
+ MvPrintw(row, 5, "-->");
+ MvPrintw(row, 8, "%s mode:", name);
+ MvPrintw(row, COL_ATTRSTRING - 1, "|");
+ if (skip)
+ printw("%*s", skip, " ");
+ /*
+ * Just for testing, write text using the alternate character set one
+ * character at a time (to pass its rendition directly), and use the
+ * string operation for the other attributes.
+ */
+ wmove(win, 0, 0);
+ werase(win);
+ if (attr & A_ALTCHARSET) {
+ const char *s;
+ chtype ch;
+
+ for (s = attr_test_string; *s != '\0'; ++s) {
+ ch = UChar(*s);
+ (void) waddch(win, ch | attr);
+ }
+ } else {
+ (void) wattrset(win, AttrArg(attr, 0));
+ (void) waddstr(win, attr_test_string);
+ (void) wattroff(win, (int) attr);
+ }
+ if (skip)
+ printw("%*s", skip, " ");
+ MvPrintw(row, COL_ATTRSTRING + LEN_ATTRSTRING, "|");
+ if (test != A_NORMAL) {
+ if (!(termattrs() & test)) {
+ printw(" (N/A)");
+ } else {
+ if (ncv > 0 && stdscr && (getbkgd(stdscr) & A_COLOR)) {
+ static const chtype table[] =
+ {
+ A_STANDOUT,
+ A_UNDERLINE,
+ A_REVERSE,
+ A_BLINK,
+ A_DIM,
+ A_BOLD,
+#ifdef A_INVIS
+ A_INVIS,
+#endif
+#ifdef A_ITALIC
+ A_ITALIC,
+#endif
+ A_PROTECT,
+ A_ALTCHARSET
+ };
+ unsigned n;
+ bool found = FALSE;
+ for (n = 0; n < SIZEOF(table); n++) {
+ if ((table[n] & attr) != 0
+ && ((1 << n) & ncv) != 0) {
+ found = TRUE;
+ break;
+ }
+ }
+ if (found)
+ printw(" (NCV)");
+ }
+ if ((termattrs() & test) != test)
+ printw(" (Part)");
+ }
+ }
+ return row + 2;
+}
+
+typedef struct {
+ attr_t attr;
+ NCURSES_CONST char *name;
+} ATTR_TBL;
+/* *INDENT-OFF* */
+static const ATTR_TBL attrs_to_test[] = {
+ { A_STANDOUT, "STANDOUT" },
+ { A_REVERSE, "REVERSE" },
+ { A_BOLD, "BOLD" },
+ { A_UNDERLINE, "UNDERLINE" },
+ { A_DIM, "DIM" },
+ { A_BLINK, "BLINK" },
+ { A_PROTECT, "PROTECT" },
+#ifdef A_INVIS
+ { A_INVIS, "INVISIBLE" },
+#endif
+#ifdef A_ITALIC
+ { A_ITALIC, "ITALIC" },
+#endif
+ { A_NORMAL, "NORMAL" },
+};
+/* *INDENT-ON* */
+
+static unsigned
+init_attr_list(ATTR_TBL * target, attr_t attrs)
+{
+ unsigned result = 0;
+ size_t n;
+
+ for (n = 0; n < SIZEOF(attrs_to_test); ++n) {
+ attr_t test = attrs_to_test[n].attr;
+ if (test == A_NORMAL || (test & attrs) != 0) {
+ target[result++] = attrs_to_test[n];
+ }
+ }
+ return result;
+}
+
+static bool
+attr_getc(int *skip,
+ NCURSES_COLOR_T *fg,
+ NCURSES_COLOR_T *bg,
+ NCURSES_COLOR_T *tx,
+ int *ac,
+ unsigned *kc,
+ unsigned limit)
+{
+ bool result = TRUE;
+ bool error = FALSE;
+ WINDOW *helpwin;
+
+ do {
+ int ch = Getchar();
+
+ error = FALSE;
+ if (ch < 256 && isdigit(ch)) {
+ *skip = (ch - '0');
+ } else {
+ switch (ch) {
+ case CTRL('L'):
+ Repaint();
+ break;
+ case '?':
+ if ((helpwin = newwin(LINES - 1, COLS - 2, 0, 0)) != 0) {
+ box(helpwin, 0, 0);
+ attr_legend(helpwin);
+ wGetchar(helpwin);
+ delwin(helpwin);
+ }
+ break;
+ case 'a':
+ *ac = 0;
+ break;
+ case 'A':
+ *ac = A_ALTCHARSET;
+ break;
+ case 'v':
+ if (*kc == 0)
+ *kc = limit - 1;
+ else
+ *kc -= 1;
+ break;
+ case 'V':
+ *kc += 1;
+ if (*kc >= limit)
+ *kc = 0;
+ break;
+ case '<':
+ adjust_attr_string(-1);
+ break;
+ case '>':
+ adjust_attr_string(1);
+ break;
+ case case_QUIT:
+ result = FALSE;
+ break;
+ default:
+ error = cycle_color_attr(ch, fg, bg, tx);
+ break;
+ }
+ }
+ } while (error);
+ return result;
+}
+
+static void
+attr_test(void)
+/* test text attributes */
+{
+ int n;
+ int skip = get_xmc();
+ NCURSES_COLOR_T fg = COLOR_BLACK; /* color pair 0 is special */
+ NCURSES_COLOR_T bg = COLOR_BLACK;
+ NCURSES_COLOR_T tx = -1;
+ int ac = 0;
+ unsigned j, k;
+ WINDOW *my_wins[SIZEOF(attrs_to_test)];
+ ATTR_TBL my_list[SIZEOF(attrs_to_test)];
+ unsigned my_size = init_attr_list(my_list, termattrs());
+
+ if (my_size > 1) {
+ for (j = 0; j < my_size; ++j) {
+ my_wins[j] = subwin(stdscr,
+ 1, LEN_ATTRSTRING,
+ 2 + (int) (2 * j), COL_ATTRSTRING);
+ scrollok(my_wins[j], FALSE);
+ }
+
+ if (skip < 0)
+ skip = 0;
+
+ n = skip; /* make it easy */
+ k = my_size - 1;
+ init_attr_string();
+
+ do {
+ int row = 2;
+ chtype normal = A_NORMAL | BLANK;
+ chtype extras = (chtype) ac;
+
+ if (use_colors) {
+ NCURSES_PAIRS_T pair = 0;
+ if ((fg != COLOR_BLACK) || (bg != COLOR_BLACK)) {
+ pair = 1;
+ if (init_pair(pair, fg, bg) == ERR) {
+ beep();
+ } else {
+ normal |= (chtype) COLOR_PAIR(pair);
+ }
+ }
+ if (tx >= 0) {
+ pair = 2;
+ if (init_pair(pair, tx, bg) == ERR) {
+ beep();
+ } else {
+ extras |= (chtype) COLOR_PAIR(pair);
+ }
+ }
+ }
+ bkgd(normal);
+ bkgdset(normal);
+ erase();
+
+ box(stdscr, 0, 0);
+ MvAddStr(0, 20, "Character attribute test display");
+
+ for (j = 0; j < my_size; ++j) {
+ bool arrow = (j == k);
+ row = show_attr(my_wins[j], row, n, arrow,
+ extras |
+ my_list[j].attr |
+ my_list[k].attr,
+ my_list[j].name);
+ }
+
+ MvPrintw(row, 8,
+ "This terminal does %shave the magic-cookie glitch",
+ get_xmc() > -1 ? "" : "not ");
+ MvPrintw(row + 1, 8, "Enter '?' for help.");
+ show_color_attr(fg, bg, tx);
+ printw(" ACS (%d)", ac != 0);
+
+ refresh();
+ } while (attr_getc(&n, &fg, &bg, &tx, &ac, &k, my_size));
+
+ bkgdset(A_NORMAL | BLANK);
+ erase();
+ endwin();
+ } else {
+ Cannot("does not support video attributes.");
+ }
+}
+
+#if USE_WIDEC_SUPPORT
+static bool use_fullwidth;
+static wchar_t wide_attr_test_string[MAX_ATTRSTRING + 1];
+
+#define FULL_LO 0xff00
+#define FULL_HI 0xff5e
+#define HALF_LO 0x20
+
+#define isFullWidth(ch) ((int)(ch) >= FULL_LO && (int)(ch) <= FULL_HI)
+#define ToNormalWidth(ch) (wchar_t) (((int)(ch) - FULL_LO) + HALF_LO)
+#define ToFullWidth(ch) (wchar_t) (((int)(ch) - HALF_LO) + FULL_LO)
+
+/*
+ * Returns an ASCII code in [32..126]
+ */
+static wchar_t
+normal_wchar(int ch)
+{
+ wchar_t result = (wchar_t) ch;
+ if (isFullWidth(ch))
+ result = ToNormalWidth(ch);
+ return result;
+}
+
+/*
+ * Returns either an ASCII code in in [32..126] or full-width in
+ * [0xff00..0xff5e], according to use_fullwidth setting.
+ */
+static wchar_t
+target_wchar(int ch)
+{
+ wchar_t result = (wchar_t) ch;
+ if (use_fullwidth) {
+ if (!isFullWidth(ch))
+ result = ToFullWidth(ch);
+ } else {
+ if (isFullWidth(ch))
+ result = ToNormalWidth(ch);
+ }
+ return result;
+}
+
+static void
+wide_adjust_attr_string(int adjust)
+{
+ wchar_t save = wide_attr_test_string[0];
+ int first = ((int) normal_wchar(save)) + adjust;
+ int j, k;
+
+ if (first >= ATTRSTRING_1ST) {
+ for (j = 0, k = first; j < MAX_ATTRSTRING; ++j, ++k) {
+ if (k > ATTRSTRING_END)
+ break;
+ wide_attr_test_string[j] = target_wchar(k);
+ if (((k + 1 - first) % 5) == 0) {
+ if (++j >= MAX_ATTRSTRING)
+ break;
+ wide_attr_test_string[j] = ' ';
+ }
+ }
+ if ((LEN_ATTRSTRING - j) > 5) {
+ wide_attr_test_string[0] = save;
+ wide_adjust_attr_string(adjust - 1);
+ } else {
+ while (j < MAX_ATTRSTRING)
+ wide_attr_test_string[j++] = ' ';
+ wide_attr_test_string[j] = '\0';
+ }
+ }
+}
+
+static void
+wide_init_attr_string(void)
+{
+ use_fullwidth = FALSE;
+ wide_attr_test_string[0] = (wchar_t) default_attr_string();
+ wide_adjust_attr_string(0);
+}
+
+static void
+set_wide_background(NCURSES_PAIRS_T pair)
+{
+ cchar_t normal;
+ wchar_t blank[2];
+
+ blank[0] = ' ';
+ blank[1] = 0;
+ setcchar(&normal, blank, A_NORMAL, pair, 0);
+ bkgrnd(&normal);
+ bkgrndset(&normal);
+}
+
+static attr_t
+get_wide_background(void)
+{
+ attr_t result = A_NORMAL;
+ attr_t attr;
+ cchar_t ch;
+ NCURSES_PAIRS_T pair;
+ wchar_t wch[10];
+
+ memset(&ch, 0, sizeof(ch));
+ if (getbkgrnd(&ch) != ERR) {
+ if (getcchar(&ch, wch, &attr, &pair, 0) != ERR) {
+ result = attr;
+ }
+ }
+ return result;
+}
+
+static int
+wide_show_attr(WINDOW *win,
+ int row,
+ int skip,
+ bool arrow,
+ chtype attr,
+ NCURSES_PAIRS_T pair,
+ const char *name)
+{
+ int ncv = get_ncv();
+ chtype test = attr & ~WA_ALTCHARSET;
+
+ if (arrow)
+ MvPrintw(row, 5, "-->");
+ MvPrintw(row, 8, "%s mode:", name);
+ MvPrintw(row, COL_ATTRSTRING - 1, "|");
+ if (skip)
+ printw("%*s", skip, " ");
+
+ /*
+ * Just for testing, write text using the alternate character set one
+ * character at a time (to pass its rendition directly), and use the
+ * string operation for the other attributes.
+ */
+ wmove(win, 0, 0);
+ werase(win);
+ if (attr & WA_ALTCHARSET) {
+ const wchar_t *s;
+ cchar_t ch;
+
+ for (s = wide_attr_test_string; *s != L'\0'; ++s) {
+ wchar_t fill[2];
+ fill[0] = *s;
+ fill[1] = L'\0';
+ setcchar(&ch, fill, attr, pair, 0);
+ (void) wadd_wch(win, &ch);
+ }
+ } else {
+ attr_t old_attr = 0;
+ NCURSES_PAIRS_T old_pair = 0;
+
+ (void) (wattr_get) (win, &old_attr, &old_pair, 0);
+ (void) wattr_set(win, attr, pair, 0);
+ (void) waddwstr(win, wide_attr_test_string);
+ (void) wattr_set(win, old_attr, old_pair, 0);
+ }
+ if (skip)
+ printw("%*s", skip, " ");
+ MvPrintw(row, COL_ATTRSTRING + LEN_ATTRSTRING, "|");
+ if (test != A_NORMAL) {
+ if (!(term_attrs() & test)) {
+ printw(" (N/A)");
+ } else {
+ if (ncv > 0 && (get_wide_background() & A_COLOR)) {
+ static const attr_t table[] =
+ {
+ WA_STANDOUT,
+ WA_UNDERLINE,
+ WA_REVERSE,
+ WA_BLINK,
+ WA_DIM,
+ WA_BOLD,
+ WA_INVIS,
+ WA_PROTECT,
+ WA_ALTCHARSET
+ };
+ unsigned n;
+ bool found = FALSE;
+ for (n = 0; n < SIZEOF(table); n++) {
+ if ((table[n] & attr) != 0
+ && ((1 << n) & ncv) != 0) {
+ found = TRUE;
+ break;
+ }
+ }
+ if (found)
+ printw(" (NCV)");
+ }
+ if ((term_attrs() & test) != test)
+ printw(" (Part)");
+ }
+ }
+ return row + 2;
+}
+
+static bool
+wide_attr_getc(int *skip,
+ NCURSES_COLOR_T *fg, NCURSES_COLOR_T *bg,
+ NCURSES_COLOR_T *tx, int *ac,
+ unsigned *kc, unsigned limit)
+{
+ bool result = TRUE;
+ bool error = FALSE;
+ WINDOW *helpwin;
+
+ do {
+ int ch = Getchar();
+
+ error = FALSE;
+ if (ch < 256 && isdigit(ch)) {
+ *skip = (ch - '0');
+ } else {
+ switch (ch) {
+ case CTRL('L'):
+ Repaint();
+ break;
+ case '?':
+ if ((helpwin = newwin(LINES - 1, COLS - 2, 0, 0)) != 0) {
+ box_set(helpwin, 0, 0);
+ attr_legend(helpwin);
+ wGetchar(helpwin);
+ delwin(helpwin);
+ }
+ break;
+ case 'a':
+ *ac = 0;
+ break;
+ case 'A':
+ *ac = A_ALTCHARSET;
+ break;
+ case 'v':
+ if (*kc == 0)
+ *kc = limit - 1;
+ else
+ *kc -= 1;
+ break;
+ case 'V':
+ *kc += 1;
+ if (*kc >= limit)
+ *kc = 0;
+ break;
+ case 'w':
+ use_fullwidth = FALSE;
+ wide_adjust_attr_string(0);
+ break;
+ case 'W':
+ use_fullwidth = TRUE;
+ wide_adjust_attr_string(0);
+ break;
+ case '<':
+ wide_adjust_attr_string(-1);
+ break;
+ case '>':
+ wide_adjust_attr_string(1);
+ break;
+ case case_QUIT:
+ result = FALSE;
+ break;
+ default:
+ error = cycle_color_attr(ch, fg, bg, tx);
+ break;
+ }
+ }
+ } while (error);
+ return result;
+}
+
+static void
+wide_attr_test(void)
+/* test text attributes using wide-character calls */
+{
+ int n;
+ int skip = get_xmc();
+ NCURSES_COLOR_T fg = COLOR_BLACK; /* color pair 0 is special */
+ NCURSES_COLOR_T bg = COLOR_BLACK;
+ NCURSES_COLOR_T tx = -1;
+ int ac = 0;
+ unsigned j, k;
+ ATTR_TBL my_list[SIZEOF(attrs_to_test)];
+ WINDOW *my_wins[SIZEOF(attrs_to_test)];
+ unsigned my_size = init_attr_list(my_list, term_attrs());
+
+ if (my_size > 1) {
+ for (j = 0; j < my_size; ++j) {
+ my_wins[j] = subwin(stdscr,
+ 1, LEN_ATTRSTRING,
+ 2 + (int) (2 * j), COL_ATTRSTRING);
+ scrollok(my_wins[j], FALSE);
+ }
+
+ if (skip < 0)
+ skip = 0;
+
+ n = skip; /* make it easy */
+ k = my_size - 1;
+ wide_init_attr_string();
+
+ do {
+ int row = 2;
+ NCURSES_PAIRS_T pair = 0;
+ NCURSES_PAIRS_T extras = 0;
+
+ if (use_colors) {
+ pair = (NCURSES_PAIRS_T) (fg != COLOR_BLACK || bg != COLOR_BLACK);
+ if (pair != 0) {
+ pair = 1;
+ if (init_pair(pair, fg, bg) == ERR) {
+ beep();
+ }
+ }
+ extras = pair;
+ if (tx >= 0) {
+ extras = 2;
+ if (init_pair(extras, tx, bg) == ERR) {
+ beep();
+ }
+ }
+ }
+ set_wide_background(pair);
+ erase();
+
+ box_set(stdscr, 0, 0);
+ MvAddStr(0, 20, "Character attribute test display");
+
+ for (j = 0; j < my_size; ++j) {
+ row = wide_show_attr(my_wins[j], row, n, (j == k),
+ ((attr_t) ac |
+ my_list[j].attr |
+ my_list[k].attr),
+ extras,
+ my_list[j].name);
+ }
+
+ MvPrintw(row, 8,
+ "This terminal does %shave the magic-cookie glitch",
+ get_xmc() > -1 ? "" : "not ");
+ MvPrintw(row + 1, 8, "Enter '?' for help.");
+ show_color_attr(fg, bg, tx);
+ printw(" ACS (%d)", ac != 0);
+
+ refresh();
+ } while (wide_attr_getc(&n, &fg, &bg, &tx, &ac, &k, my_size));
+
+ set_wide_background(0);
+ erase();
+ endwin();
+ } else {
+ Cannot("does not support extended video attributes.");
+ }
+}
+#endif
+
+/****************************************************************************
+ *
+ * Color support tests
+ *
+ ****************************************************************************/
+
+static NCURSES_CONST char *the_color_names[] =
+{
+ "black",
+ "red",
+ "green",
+ "yellow",
+ "blue",
+ "magenta",
+ "cyan",
+ "white",
+ "BLACK",
+ "RED",
+ "GREEN",
+ "YELLOW",
+ "BLUE",
+ "MAGENTA",
+ "CYAN",
+ "WHITE"
+};
+
+static void
+show_color_name(int y, int x, int color, bool wide)
+{
+ if (move(y, x) != ERR) {
+ char temp[80];
+ int width = 8;
+
+ if (wide) {
+ sprintf(temp, "%02d", color);
+ width = 4;
+ } else if (color >= 8) {
+ sprintf(temp, "[%02d]", color);
+ } else if (color < 0) {
+ strcpy(temp, "default");
+ } else {
+ sprintf(temp, "%.*s", 16, the_color_names[color]);
+ }
+ printw("%-*.*s", width, width, temp);
+ }
+}
+
+static void
+color_legend(WINDOW *helpwin, bool wide)
+{
+ int row = 1;
+ int col = 1;
+
+ MvWPrintw(helpwin, row++, col,
+ "ESC to exit.");
+ ++row;
+ MvWPrintw(helpwin, row++, col,
+ "Use up/down arrow to scroll through the display if it is");
+ MvWPrintw(helpwin, row++, col,
+ "longer than one screen. Control/N and Control/P can be used");
+ MvWPrintw(helpwin, row++, col,
+ "in place of up/down arrow. Use pageup/pagedown to scroll a");
+ MvWPrintw(helpwin, row++, col,
+ "full screen; control/B and control/F can be used here.");
+ ++row;
+ MvWPrintw(helpwin, row++, col,
+ "Toggles:");
+ MvWPrintw(helpwin, row++, col,
+ " a/A toggle altcharset off/on");
+ MvWPrintw(helpwin, row++, col,
+ " b/B toggle bold off/on");
+ if (has_colors()) {
+ MvWPrintw(helpwin, row++, col,
+ " c/C cycle used-colors through 8,16,...,COLORS");
+ }
+ MvWPrintw(helpwin, row++, col,
+ " n/N toggle text/number on/off");
+ MvWPrintw(helpwin, row++, col,
+ " r/R toggle reverse on/off");
+ MvWPrintw(helpwin, row++, col,
+ " w/W toggle width between 8/16 colors");
+#if USE_WIDEC_SUPPORT
+ if (wide) {
+ MvWPrintw(helpwin, row++, col,
+ "Wide characters:");
+ MvWPrintw(helpwin, row, col,
+ " x/X toggle text between ASCII and wide-character");
+ }
+#else
+ (void) wide;
+#endif
+}
+
+#define set_color_test(name, value) if (name != value) { name = value; base_row = 0; }
+
+static int
+color_cycle(int current, int step)
+{
+ int result = current;
+ if (step < 0) {
+ if (current <= 8) {
+ result = COLORS;
+ } else {
+ result = 8;
+ if ((result * 2) > COLORS) {
+ result = COLORS;
+ } else {
+ while ((result * 2) < current) {
+ result *= 2;
+ }
+ }
+ }
+ } else {
+ if (current >= COLORS) {
+ result = 8;
+ } else {
+ result *= 2;
+ }
+ if (result > COLORS)
+ result = COLORS;
+ }
+ return result;
+}
+
+/* generate a color test pattern */
+static void
+color_test(void)
+{
+ NCURSES_PAIRS_T i;
+ int top = 0, width;
+ int base_row = 0;
+ int grid_top = top + 3;
+ int page_size = (LINES - grid_top);
+ int pairs_max;
+ int colors_max = COLORS;
+ int row_limit;
+ int per_row;
+ char numbered[80];
+ const char *hello;
+ bool done = FALSE;
+ bool opt_acsc = FALSE;
+ bool opt_bold = FALSE;
+ bool opt_revs = FALSE;
+ bool opt_nums = FALSE;
+ bool opt_wide = FALSE;
+ WINDOW *helpwin;
+
+ while (!done) {
+ int shown = 0;
+
+ pairs_max = PAIR_NUMBER(A_COLOR) + 1;
+ if (colors_max * colors_max <= COLOR_PAIRS) {
+ int limit = (colors_max - min_colors) * (colors_max - min_colors);
+ if (pairs_max > limit)
+ pairs_max = limit;
+ } else {
+ if (pairs_max > COLOR_PAIRS)
+ pairs_max = COLOR_PAIRS;
+ }
+
+ /* this assumes an 80-column line */
+ if (opt_wide) {
+ width = 4;
+ hello = "Test";
+ per_row = (colors_max > 8) ? 16 : 8;
+ } else {
+ width = 8;
+ hello = "Hello";
+ per_row = 8;
+ }
+ per_row -= min_colors;
+
+ row_limit = (pairs_max + per_row - 1) / per_row;
+
+ move(0, 0);
+ (void) printw("There are %d color pairs and %d colors",
+ pairs_max, COLORS);
+ if (colors_max != COLORS)
+ (void) printw(" (using %d colors)", colors_max);
+ if (min_colors)
+ (void) addstr(" besides 'default'");
+
+ clrtobot();
+ MvPrintw(top + 1, 0,
+ "%dx%d matrix of foreground/background colors, bold *%s*\n",
+ row_limit,
+ per_row,
+ opt_bold ? "on" : "off");
+
+ /* show color names/numbers across the top */
+ for (i = 0; i < per_row; i++)
+ show_color_name(top + 2, (i + 1) * width, i + min_colors, opt_wide);
+
+ /* show a grid of colors, with color names/ numbers on the left */
+ for (i = (NCURSES_PAIRS_T) (base_row * per_row); i < pairs_max; i++) {
+ int row = grid_top + (i / per_row) - base_row;
+ int col = (i % per_row + 1) * width;
+ NCURSES_PAIRS_T pair = i;
+
+#define InxToFG(i) (NCURSES_COLOR_T) ((i % (colors_max - min_colors)) + min_colors)
+#define InxToBG(i) (NCURSES_COLOR_T) ((i / (colors_max - min_colors)) + min_colors)
+ if (row >= 0 && move(row, col) != ERR) {
+ NCURSES_COLOR_T fg = InxToFG(i);
+ NCURSES_COLOR_T bg = InxToBG(i);
+
+ init_pair(pair, fg, bg);
+ attron(COLOR_PAIR(pair));
+ if (opt_acsc)
+ attron(A_ALTCHARSET);
+ if (opt_bold)
+ attron(A_BOLD);
+ if (opt_revs)
+ attron(A_REVERSE);
+
+ if (opt_nums) {
+ sprintf(numbered, "{%02X}", (int) i);
+ hello = numbered;
+ }
+ printw("%-*.*s", width, width, hello);
+ (void) attrset(A_NORMAL);
+
+ if ((i % per_row) == 0 && InxToFG(i) == min_colors) {
+ show_color_name(row, 0, InxToBG(i), opt_wide);
+ }
+ ++shown;
+ } else if (shown) {
+ break;
+ }
+ }
+
+ switch (wGetchar(stdscr)) {
+ case 'a':
+ opt_acsc = FALSE;
+ break;
+ case 'A':
+ opt_acsc = TRUE;
+ break;
+ case 'b':
+ opt_bold = FALSE;
+ break;
+ case 'B':
+ opt_bold = TRUE;
+ break;
+ case 'c':
+ colors_max = color_cycle(colors_max, -1);
+ break;
+ case 'C':
+ colors_max = color_cycle(colors_max, 1);
+ break;
+ case 'n':
+ opt_nums = FALSE;
+ break;
+ case 'N':
+ opt_nums = TRUE;
+ break;
+ case 'r':
+ opt_revs = FALSE;
+ break;
+ case 'R':
+ opt_revs = TRUE;
+ break;
+ case case_QUIT:
+ done = TRUE;
+ continue;
+ case 'w':
+ set_color_test(opt_wide, FALSE);
+ break;
+ case 'W':
+ set_color_test(opt_wide, TRUE);
+ break;
+ case CTRL('p'):
+ case KEY_UP:
+ if (base_row <= 0) {
+ beep();
+ } else {
+ base_row -= 1;
+ }
+ break;
+ case CTRL('n'):
+ case KEY_DOWN:
+ if (base_row + page_size >= row_limit) {
+ beep();
+ } else {
+ base_row += 1;
+ }
+ break;
+ case CTRL('b'):
+ case KEY_PREVIOUS:
+ case KEY_PPAGE:
+ if (base_row <= 0) {
+ beep();
+ } else {
+ base_row -= (page_size - 1);
+ if (base_row < 0)
+ base_row = 0;
+ }
+ break;
+ case CTRL('f'):
+ case KEY_NEXT:
+ case KEY_NPAGE:
+ if (base_row + page_size >= row_limit) {
+ beep();
+ } else {
+ base_row += page_size - 1;
+ if (base_row + page_size >= row_limit) {
+ base_row = row_limit - page_size - 1;
+ }
+ }
+ break;
+ case '?':
+ if ((helpwin = newwin(LINES - 1, COLS - 2, 0, 0)) != 0) {
+ box(helpwin, 0, 0);
+ color_legend(helpwin, FALSE);
+ wGetchar(helpwin);
+ delwin(helpwin);
+ }
+ break;
+ default:
+ beep();
+ continue;
+ }
+ }
+
+ erase();
+ endwin();
+}
+
+#if USE_WIDEC_SUPPORT
+/* generate a color test pattern */
+static void
+wide_color_test(void)
+{
+ int i;
+ int top = 0, width;
+ int base_row = 0;
+ int grid_top = top + 3;
+ int page_size = (LINES - grid_top);
+ int pairs_max = (unsigned short) (-1);
+ int colors_max = COLORS;
+ int row_limit;
+ int per_row;
+ char numbered[80];
+ const char *hello;
+ bool done = FALSE;
+ bool opt_acsc = FALSE;
+ bool opt_bold = FALSE;
+ bool opt_revs = FALSE;
+ bool opt_wide = FALSE;
+ bool opt_nums = FALSE;
+ bool opt_xchr = FALSE;
+ wchar_t buffer[80];
+ WINDOW *helpwin;
+
+ while (!done) {
+ int shown = 0;
+
+ pairs_max = (unsigned short) (-1);
+ if (colors_max * colors_max <= COLOR_PAIRS) {
+ int limit = (colors_max - min_colors) * (colors_max - min_colors);
+ if (pairs_max > limit)
+ pairs_max = limit;
+ } else {
+ if (pairs_max > COLOR_PAIRS)
+ pairs_max = COLOR_PAIRS;
+ }
+
+ /* this assumes an 80-column line */
+ if (opt_wide) {
+ width = 4;
+ hello = "Test";
+ per_row = (colors_max > 8) ? 16 : 8;
+ } else {
+ width = 8;
+ hello = "Hello";
+ per_row = 8;
+ }
+ per_row -= min_colors;
+
+ if (opt_xchr) {
+ make_fullwidth_text(buffer, hello);
+ width *= 2;
+ per_row /= 2;
+ } else {
+ make_narrow_text(buffer, hello);
+ }
+
+ row_limit = (pairs_max + per_row - 1) / per_row;
+
+ move(0, 0);
+ (void) printw("There are %d color pairs and %d colors",
+ pairs_max, COLORS);
+ if (colors_max != COLORS)
+ (void) printw(" (using %d colors)", colors_max);
+ if (min_colors)
+ (void) addstr(" besides 'default'");
+
+ clrtobot();
+ MvPrintw(top + 1, 0,
+ "%dx%d matrix of foreground/background colors, bold *%s*\n",
+ row_limit,
+ per_row,
+ opt_bold ? "on" : "off");
+
+ /* show color names/numbers across the top */
+ for (i = 0; i < per_row; i++)
+ show_color_name(top + 2, (i + 1) * width, i + min_colors, opt_wide);
+
+ /* show a grid of colors, with color names/ numbers on the left */
+ for (i = (base_row * per_row); i < pairs_max; i++) {
+ int row = grid_top + (i / per_row) - base_row;
+ int col = (i % per_row + 1) * width;
+ NCURSES_PAIRS_T pair = (NCURSES_PAIRS_T) i;
+
+ if (row >= 0 && move(row, col) != ERR) {
+ init_pair(pair, InxToFG(i), InxToBG(i));
+ (void) color_set(pair, NULL);
+ if (opt_acsc)
+ attr_on(A_ALTCHARSET, NULL);
+ if (opt_bold)
+ attr_on(A_BOLD, NULL);
+ if (opt_revs)
+ attr_on(A_REVERSE, NULL);
+
+ if (opt_nums) {
+ sprintf(numbered, "{%02X}", i);
+ if (opt_xchr) {
+ make_fullwidth_text(buffer, numbered);
+ } else {
+ make_narrow_text(buffer, numbered);
+ }
+ }
+ addnwstr(buffer, width);
+ (void) attr_set(A_NORMAL, 0, NULL);
+
+ if ((i % per_row) == 0 && InxToFG(i) == min_colors) {
+ show_color_name(row, 0, InxToBG(i), opt_wide);
+ }
+ ++shown;
+ } else if (shown) {
+ break;
+ }
+ }
+
+ switch (wGetchar(stdscr)) {
+ case 'a':
+ opt_acsc = FALSE;
+ break;
+ case 'A':
+ opt_acsc = TRUE;
+ break;
+ case 'b':
+ opt_bold = FALSE;
+ break;
+ case 'B':
+ opt_bold = TRUE;
+ break;
+ case 'c':
+ colors_max = color_cycle(colors_max, -1);
+ break;
+ case 'C':
+ colors_max = color_cycle(colors_max, 1);
+ break;
+ case 'n':
+ opt_nums = FALSE;
+ break;
+ case 'N':
+ opt_nums = TRUE;
+ break;
+ case 'r':
+ opt_revs = FALSE;
+ break;
+ case 'R':
+ opt_revs = TRUE;
+ break;
+ case case_QUIT:
+ done = TRUE;
+ continue;
+ case 'w':
+ set_color_test(opt_wide, FALSE);
+ break;
+ case 'W':
+ set_color_test(opt_wide, TRUE);
+ break;
+ case 'x':
+ opt_xchr = FALSE;
+ break;
+ case 'X':
+ opt_xchr = TRUE;
+ break;
+ case CTRL('p'):
+ case KEY_UP:
+ if (base_row <= 0) {
+ beep();
+ } else {
+ base_row -= 1;
+ }
+ break;
+ case CTRL('n'):
+ case KEY_DOWN:
+ if (base_row + page_size >= row_limit) {
+ beep();
+ } else {
+ base_row += 1;
+ }
+ break;
+ case CTRL('b'):
+ case KEY_PREVIOUS:
+ case KEY_PPAGE:
+ if (base_row <= 0) {
+ beep();
+ } else {
+ base_row -= (page_size - 1);
+ if (base_row < 0)
+ base_row = 0;
+ }
+ break;
+ case CTRL('f'):
+ case KEY_NEXT:
+ case KEY_NPAGE:
+ if (base_row + page_size >= row_limit) {
+ beep();
+ } else {
+ base_row += page_size - 1;
+ if (base_row + page_size >= row_limit) {
+ base_row = row_limit - page_size - 1;
+ }
+ }
+ break;
+ case '?':
+ if ((helpwin = newwin(LINES - 1, COLS - 2, 0, 0)) != 0) {
+ box(helpwin, 0, 0);
+ color_legend(helpwin, TRUE);
+ wGetchar(helpwin);
+ delwin(helpwin);
+ }
+ break;
+ default:
+ beep();
+ continue;
+ }
+ }
+
+ erase();
+ endwin();
+}
+#endif /* USE_WIDEC_SUPPORT */
+
+static void
+change_color(NCURSES_PAIRS_T current, int field, int value, int usebase)
+{
+ NCURSES_COLOR_T red, green, blue;
+
+ color_content(current, &red, &green, &blue);
+
+ switch (field) {
+ case 0:
+ red = (NCURSES_COLOR_T) (usebase ? (red + value) : value);
+ break;
+ case 1:
+ green = (NCURSES_COLOR_T) (usebase ? (green + value) : value);