mirror of
https://git.code.sf.net/p/zint/code
synced 2024-09-19 23:39:02 -04:00
105 lines
2.6 KiB
C
105 lines
2.6 KiB
C
/* qr.c Handles QR Code by utilising libqrencode */
|
|
|
|
/*
|
|
libzint - the open source barcode library
|
|
Copyright (C) 2008 Robin Stuart <robin@zint.org.uk>
|
|
Copyright (C) 2006 Kentaro Fukuchi <fukuchi@megaui.net>
|
|
|
|
This program 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 3 of the License, or
|
|
(at your option) any later version.
|
|
|
|
This program 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 this program; if not, write to the Free Software Foundation, Inc.,
|
|
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
|
|
*/
|
|
|
|
#include <string.h>
|
|
#include "common.h"
|
|
|
|
#ifndef NO_QR
|
|
#include <qrencode.h>
|
|
|
|
QRcode *encode(int security, int size, const unsigned char *intext, int kanji)
|
|
{
|
|
int version;
|
|
QRecLevel level;
|
|
QRencodeMode hint;
|
|
QRcode *code;
|
|
|
|
if(kanji) {
|
|
hint = QR_MODE_KANJI;
|
|
} else {
|
|
hint = QR_MODE_8;
|
|
}
|
|
|
|
level = QR_ECLEVEL_L;
|
|
if((security >= 1) && (security <= 4)) {
|
|
switch (security) {
|
|
case 1: level = QR_ECLEVEL_L; break;
|
|
case 2: level = QR_ECLEVEL_M; break;
|
|
case 3: level = QR_ECLEVEL_Q; break;
|
|
case 4: level = QR_ECLEVEL_H; break;
|
|
}
|
|
}
|
|
|
|
if((size >= 1) && (size <= 40)) {
|
|
version = size;
|
|
} else {
|
|
version = 0;
|
|
}
|
|
|
|
code = QRcode_encodeString((char*)intext, version, level, hint, 1);
|
|
|
|
return code;
|
|
}
|
|
|
|
int qr_code(struct zint_symbol *symbol, unsigned char source[])
|
|
{
|
|
QRcode *code;
|
|
int errno = 0;
|
|
int i, j;
|
|
int kanji;
|
|
|
|
if((symbol->input_mode == KANJI_MODE) || (symbol->input_mode == SJIS_MODE)) { kanji = 1; } else { kanji = 0; }
|
|
|
|
code = encode(symbol->option_1, symbol->option_2, source, kanji);
|
|
if(code == NULL) {
|
|
strcpy(symbol->errtxt, "libqrencode failed to encode the input data [581]");
|
|
return ERROR_ENCODING_PROBLEM;
|
|
}
|
|
|
|
symbol->width = code->width;
|
|
symbol->rows = code->width;
|
|
|
|
for(i = 0; i < code->width; i++) {
|
|
for(j = 0; j < code->width; j++) {
|
|
if((*(code->data + (i * code->width) + j) & 0x01) == 0) {
|
|
symbol->encoded_data[i][j] = '0';
|
|
} else {
|
|
symbol->encoded_data[i][j] = '1';
|
|
}
|
|
}
|
|
symbol->row_height[i] = 1;
|
|
}
|
|
|
|
QRcode_free(code);
|
|
|
|
return errno;
|
|
}
|
|
|
|
#else
|
|
/* Handler if no QR Encode library is available */
|
|
int qr_code(struct zint_symbol *symbol, unsigned char source[])
|
|
{
|
|
strcpy(symbol->errtxt, "QR Code library <qrencode> not available [580]");
|
|
return ERROR_INVALID_OPTION;
|
|
}
|
|
#endif
|
|
|