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/* $NetBSD: colorbars.c,v 1.1 2012/06/06 00:13:36 christos Exp $ */
/*-
* Copyright (c) 2012 Nathanial Sloss <nathanialsloss@yahoo.com.au>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include <sys/cdefs.h>
__RCSID("$NetBSD: colorbars.c,v 1.1 2012/06/06 00:13:36 christos Exp $");
#include <curses.h>
#include <stdio.h>
#include <string.h>
#include <err.h>
#include <stdlib.h>
int
main(void)
{
static struct colorInfo {
const char *name;
int color;
} colorInfo[] = {
{ "Black", COLOR_BLACK },
{ "Red", COLOR_RED },
{ "Green", COLOR_GREEN },
{ "Yellow", COLOR_YELLOW },
{ "Blue", COLOR_BLUE },
{ "Magenta", COLOR_MAGENTA },
{ "Cyan", COLOR_CYAN },
{ "White", COLOR_WHITE },
};
size_t lengths[__arraycount(colorInfo)];
static const size_t numcolors = __arraycount(colorInfo);
size_t labelwidth;
int colorOK;
int spacing, offsetx, labeloffsety, labeloffsetx;
if (!initscr())
errx(EXIT_FAILURE, "Cannot initialize curses");
colorOK = has_colors();
if (!colorOK) {
endwin();
errx(EXIT_FAILURE, "Terminal cannot display color");
}
if (COLS < 45 || LINES < 10) {
endwin();
errx(EXIT_FAILURE, "Terminal size must be at least 45x10.");
}
spacing = COLS / numcolors;
offsetx = (COLS - (spacing * numcolors)) / 2;
start_color();
labelwidth = 0;
for (size_t i = 0; i < numcolors; i++) {
lengths[i] = strlen(colorInfo[i].name);
if (lengths[i] > labelwidth)
labelwidth = lengths[i];
init_pair(i, COLOR_WHITE, colorInfo[i].color);
}
labeloffsetx = spacing / 2;
labeloffsety = (LINES - 1 - labelwidth) / 2;
clear();
move(0, 0);
for (size_t i = 0; i < numcolors; i++) {
int xoffs = offsetx + spacing * i;
attrset(COLOR_PAIR(i));
for (int line = 0; line < LINES - 1; line++)
for (int xpos = 0; xpos < spacing; xpos++)
mvprintw(line, xoffs + xpos, " ");
attrset(COLOR_PAIR(0));
xoffs += labeloffsetx;
for (size_t line = 0; line < lengths[i]; line++)
mvprintw(line + labeloffsety, xoffs, "%c",
colorInfo[i].name[line]);
}
attrset(COLOR_PAIR(0));
mvprintw(LINES - 1, 0, "ANSI Color chart - Press any key to exit: ");
refresh();
getch();
endwin();
return EXIT_SUCCESS;
}
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