/****************************************************************************
- * Copyright (c) 2003-2006,2011 Free Software Foundation, Inc. *
+ * Copyright (c) 2003-2011,2012 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 1.9 2011/04/23 21:16:38 tom Exp $
+ * $Id: background.c,v 1.12 2012/05/12 20:58:40 tom Exp $
*/
#define NEED_COLOR_CODE 1
test_background(void)
{
short f, b;
+ int row;
+ int chr;
- pair_content(0, &f, &b);
- printw("pair 0 contains (%d,%d)\n", f, b);
+ if (pair_content(0, &f, &b) == ERR) {
+ printw("pair 0 contains no data\n");
+ } else {
+ printw("pair 0 contains (%d,%d)\n", f, b);
+ }
getch();
printw("Initializing pair 1 to red/%s\n", color_name(default_bg));
printw("This line should be %s/blue\n", color_name(default_fg));
getch();
- printw("Resetting colors to pair 0\n");
+ printw("Initializing pair 3 to %s/cyan (ACS_HLINE)\n", color_name(default_fg));
+ init_pair(3, (short) default_fg, COLOR_CYAN);
+ printw("...and drawing a box which should be followed by lines\n");
+ bkgdset(ACS_HLINE | 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");
+ getch();
+
bkgdset(' ' | COLOR_PAIR(0));
printw("Default Colors\n");
getch();
bkgd(' ' | COLOR_PAIR(2));
getch();
+ printw("Setting screen to pair 3\n");
+ bkgd(' ' | COLOR_PAIR(3));
+ getch();
+
printw("Setting screen to pair 0\n");
bkgd(' ' | COLOR_PAIR(0));
getch();
#endif
int n;
+ setlocale(LC_ALL, "");
+
while ((n = getopt(argc, argv, "ab:df:")) != -1) {
switch (n) {
#if HAVE_ASSUME_DEFAULT_COLORS