ncurses 6.1 - patch 20180825

[ncurses.git] / test / background.c

diff --git a/test/background.c b/test/background.c
index 24b63785a73d9805d721ebba8b0f5941bab121d7..b7c2d1fb72c1237c13d60f5d13697b37d376570a 100644 (file)
--- a/test/background.c
+++ b/test/background.c
@@ -1,5 +1,5 @@
 /****************************************************************************
- * Copyright (c) 2003-2006,2011 Free Software Foundation, Inc.              *
+ * Copyright (c) 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            *
@@ -26,7 +26,7 @@
  * authorization.                                                           *
  ****************************************************************************/
 /*
- * $Id: background.c,v 1.9 2011/04/23 21:16:38 tom Exp $
+ * $Id: background.c,v 1.17 2017/09/29 22:54:33 tom Exp $
  */
 
 #define NEED_COLOR_CODE 1
@@ -39,48 +39,90 @@ static int default_fg = COLOR_WHITE;
 static void
 test_background(void)
 {
-    short f, b;
+    NCURSES_COLOR_T 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", (int) f, (int) b);
+    }
     getch();
 
     printw("Initializing pair 1 to red/%s\n", color_name(default_bg));
-    init_pair(1, COLOR_RED, (short) default_bg);
-    bkgdset(' ' | COLOR_PAIR(1));
+    init_pair(1, COLOR_RED, (NCURSES_COLOR_T) default_bg);
+    bkgdset((chtype) (' ' | COLOR_PAIR(1)));
     printw("RED/BLACK\n");
     getch();
 
     printw("Initializing pair 2 to %s/blue\n", color_name(default_fg));
-    init_pair(2, (short) default_fg, COLOR_BLUE);
-    bkgdset(' ' | COLOR_PAIR(2));
+    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));
     getch();
 
-    printw("Resetting colors to pair 0\n");
-    bkgdset(' ' | COLOR_PAIR(0));
+    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");
+    getch();
+
+    bkgdset((chtype) (' ' | COLOR_PAIR(0)));
     printw("Default Colors\n");
     getch();
 
     printw("Resetting colors to pair 1\n");
-    bkgdset(' ' | COLOR_PAIR(1));
+    bkgdset((chtype) (' ' | COLOR_PAIR(1)));
     printw("This line should be red/%s\n", color_name(default_bg));
     getch();
 
     printw("Setting screen to pair 0\n");
-    bkgd(' ' | COLOR_PAIR(0));
+    bkgd((chtype) (' ' | COLOR_PAIR(0)));
     getch();
 
     printw("Setting screen to pair 1\n");
-    bkgd(' ' | COLOR_PAIR(1));
+    bkgd((chtype) (' ' | COLOR_PAIR(1)));
     getch();
 
     printw("Setting screen to pair 2\n");
-    bkgd(' ' | COLOR_PAIR(2));
+    bkgd((chtype) (' ' | COLOR_PAIR(2)));
+    getch();
+
+    printw("Setting screen to pair 3\n");
+    bkgd((chtype) (' ' | COLOR_PAIR(3)));
     getch();
 
     printw("Setting screen to pair 0\n");
-    bkgd(' ' | COLOR_PAIR(0));
+    bkgd((chtype) (' ' | COLOR_PAIR(0)));
     getch();
 }
 
@@ -120,6 +162,8 @@ main(int argc GCC_UNUSED, char *argv[]GCC_UNUSED)
 #endif
     int n;
 
+    setlocale(LC_ALL, "");
+
     while ((n = getopt(argc, argv, "ab:df:")) != -1) {
        switch (n) {
 #if HAVE_ASSUME_DEFAULT_COLORS