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/*
* Program entry point
*
* Copyright (C) 2019 Patrick McDermott
*
* This file is part of fbcon2png.
*
* fbcon2png is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* fbcon2png is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with fbcon2png. If not, see <http://www.gnu.org/licenses/>.
*/
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include "font.h"
#include "i18n.h"
#include "image.h"
#include "text.h"
static void
usage(FILE *stream, const char *program_name)
{
fprintf(stream, _("Usage: %s [-f <font>] [-w <width>] [-h <height>] "
"<text-input> <png-output>\n"), program_name);
fputs(_(" -f <font> name of font face, or \"list\" to list "
"available font face names\n"), stream);
fputs(_(" -w <width> width of image in character columns\n"),
stream);
fputs(_(" -h <height> height of image in character rows\n"), stream);
}
int
main(int argc, char **argv)
{
struct font *font;
int w;
int h;
int opt;
char *end;
const char *input;
const char *output;
FILE *fp;
struct text *text;
struct image *image;
font = NULL;
w = 0;
h = 0;
while ((opt = getopt(argc, argv, "f:w:h:")) != -1) {
switch (opt) {
case 'f':
font = font_find(optarg);
if (!font) {
fprintf(stderr, _("Font \"%s\" not "
"found\n"),
optarg);
usage(stderr, argv[0]);
return 1;
}
break;
case 'w':
w = strtol(optarg, &end, 10);
if (*optarg == '\0' || *end != '\0' || w <= 0) {
fprintf(stderr, _("Width must be an "
"integer "
"greater than "
"0\n"));
usage(stderr, argv[0]);
return 1;
}
break;
case 'h':
h = strtol(optarg, &end, 10);
if (*optarg == '\0' || *end != '\0' || h <= 0) {
fprintf(stderr, _("Height must be an "
"integer "
"greater than "
"0\n"));
usage(stderr, argv[0]);
return 1;
}
break;
default:
usage(stderr, argv[0]);
return 1;
}
}
argc -= optind;
if (argc != 2) {
return 1;
}
if (!font) {
font = font_default();
}
input = argv[optind++];
output = argv[optind++];
if (strcmp(input, "-") != 0) {
fp = fopen(input, "r");
if (!fp) {
fprintf(stderr, _("Error: Cannot open \"%s\" for "
"reading\n"), input);
return 1;
}
} else {
fp = stdin;
}
text = text_new(fp);
if (fp != stdin) {
fclose(fp);
}
if (w > 0) {
text_set_width(text, w);
}
if (h > 0) {
text_set_height(text, h);
}
image = image_new(output);
image_render(image, text, font);
text_destroy(&text);
image_destroy(&image);
return 0;
}
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