import curses
import platform

def main(stdscr):
    curses.start_color()
    curses.use_default_colors()
    stdscr.addstr("pairs={}, colors={}\n".format(
        curses.COLOR_PAIRS, curses.COLORS))
    stdscr.addstr("std colors are: {},{},{},{},{},{},{},{}\n".format(
        curses.COLOR_BLACK,
        curses.COLOR_BLUE,
        curses.COLOR_GREEN,
        curses.COLOR_CYAN,
        curses.COLOR_RED,
        curses.COLOR_MAGENTA,
        curses.COLOR_YELLOW,
        curses.COLOR_WHITE))
    for i in range(8):
        stdscr.addstr("color {}=({}), ".format(i,
            curses.color_content(i)))
        if i == 3:
            stdscr.addstr("\n")
    stdscr.addstr("\n")
    stdscr.addstr(("Attrs=\n"+5*(4 * "{:08X}={},"+"\n")).format(
        curses.A_ALTCHARSET,    "A_ALTCHARSET",    # Alternate character set mode
        curses.A_BLINK     ,    "A_BLINK     ",    # Blink mode
        curses.A_BOLD      ,    "A_BOLD      ",    # Bold mode
        curses.A_DIM       ,    "A_DIM       ",    # Dim mode
        curses.A_INVIS     ,    "A_INVIS     ",    # Invisible or blank mode
        curses.A_ITALIC    ,    "A_ITALIC    ",    # Italic mode
        curses.A_NORMAL    ,    "A_NORMAL    ",    # Normal attribute
        curses.A_PROTECT   ,    "A_PROTECT   ",    # Protected mode
        curses.A_REVERSE   ,    "A_REVERSE   ",    # Reverse background and foreground colors
        curses.A_STANDOUT  ,    "A_STANDOUT  ",    # Standout mode
        curses.A_UNDERLINE ,    "A_UNDERLINE ",    # Underline mode
        curses.A_HORIZONTAL,    "A_HORIZONTAL",    # Horizontal highlight
        curses.A_LEFT      ,    "A_LEFT      ",    # Left highlight
        curses.A_LOW       ,    "A_LOW       ",    # Low highlight
        curses.A_RIGHT     ,    "A_RIGHT     ",    # Right highlight
        curses.A_TOP       ,    "A_TOP       ",    # Top highlight
        curses.A_VERTICAL  ,    "A_VERTICAL  ",    # Vertical highlight
        curses.A_ATTRIBUTES,    "A_ATTRIBUTES",    # Bit-mask to extract attributes
        curses.A_CHARTEXT  ,    "A_CHARTEXT  ",    # Bit-mask to extract a character
        curses.A_COLOR     ,    "A_COLOR     "     # Bit-mask to extract color-pair field information
        ))
    fg, bg = curses.pair_content (curses.pair_number(stdscr.inch() & curses.A_ATTRIBUTES))
    stdscr.addstr("\nstdscr fg={:08X}={},bg={:08X}={}\n".format(fg, fg, bg, bg))
    stdscr.getch()

    stdscr.erase()
    for i in range(1, min(curses.COLOR_PAIRS, 256)):
        curses.init_pair(i, i - 1, -1)
        #stdscr.addstr("{:03},".format(i), curses.color_pair(i))
        #stdscr.getch()
    try:
        for i in range(0, min(curses.COLOR_PAIRS, 256)):
            stdscr.addstr("{:03},".format(i), curses.color_pair(i))
            if i > 0 and i % 15 == 14:
                stdscr.addstr("\n")
        stdscr.addstr("\n")
    except:  # curses.ERR:
        # End of screen reached
        pass
    y, x = stdscr.getyx()
    attr = stdscr.inch(6, 0)
    stdscr.move(y, x)
    stdscr.addstr("inch(6,0)={:08X}={}\n".format(attr, attr))
    pair = curses.pair_number(attr)
    if platform.system() == "Windows":
        pair = pair >> 16
    stdscr.addstr("pair(6,0)={:08X}={}\n".format(pair, pair))
    fg, bg = curses.pair_content (pair)
    stdscr.addstr("color(6,0) fg={:08X}={},bg={:08X}={}\n".format(fg, fg, bg, bg))
    attr = stdscr.getbkgd()
    stdscr.addstr("scrbkgd={:08X}={}\n".format(attr, attr))
    pair = curses.pair_number(attr)
    if platform.system() == "Windows":
        pair = pair >> 16
    fg, bg = curses.pair_content (pair)
    stdscr.addstr("color(scrbkgd) fg={:08X}={},bg={:08X}={}\n".format(fg, fg, bg, bg))
    stdscr.getch()

curses.wrapper(main)