/****************************************************************************
- * Copyright (c) 2003,2006 Free Software Foundation, Inc. *
+ * Copyright 2018,2020 Thomas E. Dickey *
+ * Copyright 2003-2014,2017 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 *
* authorization. *
****************************************************************************/
/*
- * $Id: background.c,v 1.3 2006/06/03 16:43:08 tom Exp $
+ * $Id: background.c,v 1.19 2020/02/02 23:34:34 tom Exp $
*/
-#include <test.priv.h>
+#define NEED_COLOR_CODE 1
+#define NEED_COLOR_NAME 1
+#include <color_name.h>
+#include <dump_window.h>
-int
-main(int argc GCC_UNUSED, char *argv[]GCC_UNUSED)
+static int default_bg = COLOR_BLACK;
+static int default_fg = COLOR_WHITE;
+
+static void
+test_background(void)
{
- short f, b;
+ NCURSES_COLOR_T f, b;
+ int row;
+ int chr;
- initscr();
- cbreak();
- noecho();
+ if (pair_content(0, &f, &b) == ERR) {
+ printw("pair 0 contains no data\n");
+ } else {
+ printw("pair 0 contains (%d,%d)\n", (int) f, (int) b);
+ }
+ dump_window(stdscr);
- if (has_colors()) {
- start_color();
+ printw("Initializing pair 1 to red/%s\n", color_name(default_bg));
+ init_pair(1, COLOR_RED, (NCURSES_COLOR_T) default_bg);
+ bkgdset((chtype) (' ' | COLOR_PAIR(1)));
+ printw("RED/BLACK\n");
+ dump_window(stdscr);
- pair_content(0, &f, &b);
- printw("pair 0 contains (%d,%d)\n", f, b);
- getch();
+ printw("Initializing pair 2 to %s/blue\n", color_name(default_fg));
+ init_pair(2, (NCURSES_COLOR_T) default_fg, COLOR_BLUE);
+ bkgdset((chtype) (' ' | COLOR_PAIR(2)));
+ printw("This line should be %s/blue\n", color_name(default_fg));
+ dump_window(stdscr);
- printw("Initializing pair 1 to red/black\n");
- init_pair(1, COLOR_RED, COLOR_BLACK);
- bkgdset(' ' | COLOR_PAIR(1));
- printw("RED/BLACK\n");
- getch();
+ printw("Initializing pair 3 to %s/cyan (ACS_HLINE)\n", color_name(default_fg));
+ init_pair(3, (NCURSES_COLOR_T) default_fg, COLOR_CYAN);
+ printw("...and drawing a box which should be followed by lines\n");
+ bkgdset(ACS_HLINE | (chtype) COLOR_PAIR(3));
+ /*
+ * Characters from vt100 line-drawing should be mapped to line-drawing,
+ * since A_ALTCHARSET is set in the background, and the character part
+ * of the background is replaced by the nonblank characters written.
+ *
+ * Characters not in the line-drawing range are usually sent as-is.
+ *
+ * With SVr4 curses it is possible to rely on this to mix uppercase text
+ * with the (lowercase) line-drawing characters. ncurses uses some of
+ * the uppercase characters for encoding thick- and double-lines.
+ */
+ row = 7;
+ mvprintw(row++, 10, "l");
+ for (chr = 0; chr < 32; ++chr)
+ AddCh(' ');
+ printw("x\n");
+ chr = 32;
+ while (chr < 128) {
+ if ((chr % 32) == 0)
+ mvprintw(row++, 10, "x");
+ AddCh((chr == 127) ? ' ' : chr);
+ if ((++chr % 32) == 0)
+ printw("x\n");
+ }
+ mvprintw(row++, 10, "m");
+ for (chr = 0; chr < 32; ++chr)
+ AddCh(' ');
+ printw("j\n");
+ dump_window(stdscr);
- printw("Initializing pair 2 to white/blue\n");
- init_pair(2, COLOR_WHITE, COLOR_BLUE);
- bkgdset(' ' | COLOR_PAIR(2));
- printw("WHITE/BLUE\n");
- getch();
+ bkgdset((chtype) (' ' | COLOR_PAIR(0)));
+ printw("Default Colors\n");
+ dump_window(stdscr);
- printw("Resetting colors to pair 0\n");
- bkgdset(' ' | COLOR_PAIR(0));
- printw("Default Colors\n");
- getch();
+ printw("Resetting colors to pair 1\n");
+ bkgdset((chtype) (' ' | COLOR_PAIR(1)));
+ printw("This line should be red/%s\n", color_name(default_bg));
+ dump_window(stdscr);
- printw("Resetting colors to pair 1\n");
- bkgdset(' ' | COLOR_PAIR(1));
- printw("RED/BLACK\n");
- getch();
+ printw("Setting screen to pair 0\n");
+ bkgd((chtype) (' ' | COLOR_PAIR(0)));
+ dump_window(stdscr);
- printw("Setting screen to pair 0\n");
- bkgd(' ' | COLOR_PAIR(0));
- getch();
+ printw("Setting screen to pair 1\n");
+ bkgd((chtype) (' ' | COLOR_PAIR(1)));
+ dump_window(stdscr);
- printw("Setting screen to pair 1\n");
- bkgd(' ' | COLOR_PAIR(1));
- getch();
+ printw("Setting screen to pair 2\n");
+ bkgd((chtype) (' ' | COLOR_PAIR(2)));
+ dump_window(stdscr);
- printw("Setting screen to pair 2\n");
- bkgd(' ' | COLOR_PAIR(2));
- getch();
+ printw("Setting screen to pair 3\n");
+ bkgd((chtype) (' ' | COLOR_PAIR(3)));
+ dump_window(stdscr);
- printw("Setting screen to pair 0\n");
- bkgd(' ' | COLOR_PAIR(0));
- getch();
+ printw("Setting screen to pair 0\n");
+ bkgd((chtype) (' ' | COLOR_PAIR(0)));
+ dump_window(stdscr);
+}
+
+static void
+usage(void)
+{
+ static const char *msg[] =
+ {
+ "Usage: background [options]"
+ ,""
+ ,"Options:"
+#if HAVE_ASSUME_DEFAULT_COLORS
+ ," -a invoke assume_default_colors, repeat to use in init_pair"
+#endif
+ ," -b XXX specify background color"
+#if HAVE_USE_DEFAULT_COLORS
+ ," -d invoke use_default_colors, repeat to use in init_pair"
+#endif
+ ," -f XXX specify foreground color"
+ };
+ size_t n;
+
+ for (n = 0; n < SIZEOF(msg); n++)
+ fprintf(stderr, "%s\n", msg[n]);
+
+ ExitProgram(EXIT_FAILURE);
+}
+
+int
+main(int argc GCC_UNUSED, char *argv[]GCC_UNUSED)
+{
+#if HAVE_ASSUME_DEFAULT_COLORS
+ int a_option = 0;
+#endif
+#if HAVE_USE_DEFAULT_COLORS
+ int d_option = 0;
+#endif
+ int n;
+
+ setlocale(LC_ALL, "");
+
+ while ((n = getopt(argc, argv, "ab:df:l:")) != -1) {
+ switch (n) {
+#if HAVE_ASSUME_DEFAULT_COLORS
+ case 'a':
+ ++a_option;
+ break;
+#endif
+ case 'b':
+ default_bg = color_code(optarg);
+ break;
+#if HAVE_USE_DEFAULT_COLORS
+ case 'd':
+ ++d_option;
+ break;
+#endif
+ case 'f':
+ default_fg = color_code(optarg);
+ break;
+ case 'l':
+ if (!open_dump(optarg))
+ usage();
+ break;
+ default:
+ usage();
+ }
+ }
+#if HAVE_USE_DEFAULT_COLORS && HAVE_ASSUME_DEFAULT_COLORS
+ if (a_option && d_option) {
+ fprintf(stderr, "Use either -a or -d option, but not both\n");
+ ExitProgram(EXIT_FAILURE);
+ }
+#endif
+
+ initscr();
+ cbreak();
+ noecho();
+
+ if (has_colors()) {
+ start_color();
+
+#if HAVE_USE_DEFAULT_COLORS
+ if (d_option) {
+ printw("Using default colors...\n");
+ use_default_colors();
+ if (d_option > 1) {
+ default_fg = -1;
+ default_bg = -1;
+ }
+ }
+#endif
+#if HAVE_ASSUME_DEFAULT_COLORS
+ if (a_option) {
+ printw("Using assumed colors %s/%s...\n",
+ color_name(default_fg),
+ color_name(default_bg));
+ assume_default_colors(default_fg, default_bg);
+ if (a_option > 1) {
+ default_fg = -1;
+ default_bg = -1;
+ }
+ }
+#endif
+
+ test_background();
} else {
printw("This demo requires a color terminal");
getch();
}
endwin();
-
+ close_dump();
ExitProgram(EXIT_SUCCESS);
}
projects / ncurses.git / blobdiff