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https://github.com/troglobit/libite.git
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Joachim Nilsson
1909dd475c
This patch adds a very simple progress bar I wrote once. It's revision f98c5d0 from https://github.com/troglobit/toolbox Also included in this patch is conio.h, a neat little set of macros for manipulating your terminal using ANSI escape seequences. Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
103 lines
2.4 KiB
C
103 lines
2.4 KiB
C
/* Very simple termios based progress bar
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*
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* Copyright (c) 2012, 2013 Joachim Nilsson <troglobit@gmail.com>
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*
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* Permission to use, copy, modify, and/or distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#include <limits.h> /* INT_MAX */
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#include <stdio.h>
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#include "conio.h"
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static char spinner(void)
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{
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static int i = INT_MAX;
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char *states = "|/-\\";
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// char *states = ".oOo";
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// char *states = ".oO°Oo.";
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// char *states = "v<^>";
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// char *states = ".oO@*";
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/* Subtract to get clockwise spinning. */
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return states[i-- % 4]; /* % Number of states */
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}
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void progress(int percent, int max_width)
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{
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int i, bar = percent * max_width / 100;
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if (0 == percent)
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hidecursor();
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fprintf(stderr, "\r%3d%% %c [", percent, spinner());
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for (i = 0; i < max_width; i++) {
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if (i > bar)
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fputc(' ', stderr);
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else if (i == bar)
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fputc('>', stderr);
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else
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fputc('=', stderr);
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}
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fprintf(stderr, "]");
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if (100 == percent) {
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showcursor();
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fputc('\n', stderr);
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}
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}
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#ifdef UNITTEST
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#include <stdlib.h> /* atexit() */
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#include <unistd.h> /* usleep() */
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#define MAX_WIDTH 80
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#define msleep(msec) usleep(msec * 1000)
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static void bye(void)
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{
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showcursor();
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}
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int main(int argc __attribute__((unused)), char const *argv[] __attribute__((unused)))
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{
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int i, percent, block = 0, num = 85;
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atexit(bye);
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hidecursor();
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while (block < num) {
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percent = block * 100 / num;
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for (i = 0; i < 10; i++) {
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progress(percent, MAX_WIDTH);
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msleep(2);
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}
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block++;
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msleep(50);
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}
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progress(100, MAX_WIDTH);
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return 0;
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}
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#endif /* UNITTEST */
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/**
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* Local Variables:
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* compile-command: "gcc -g -I../../include -o unittest -DUNITTEST progress.c; and ./unittest"
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* version-control: t
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* indent-tabs-mode: t
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* c-file-style: "linux"
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* End:
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*/
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