int
main(int argc, char* argv[])
{
QRcode * qrcode = QRcode_encodeString8bit(argv[1], 4 , QR_ECLEVEL_L);
int width = qrcode->width;
int x,y,i = 0;
unsigned char * data=qrcode->data;
printf("P1\n %d %d\n", width, width);
for(y=0; y < width; y++)
{
for(x =0; x <width; x++, i++)
{
printf((data[i] & 1)?"1 " : "0 ");
}
printf("\n");
}
QRcode_free(qrcode);
return 0;
}
void qrcode_clock::updateTime()
{
// get time
QDateTime time = QDateTime::currentDateTime();
QString timeStr(QString::number(time.toTime_t()));
// encode time as QR code
QRcode *qrCodeMatrix(QRcode_encodeString8bit(timeStr.toStdString().c_str(), 0, QR_ECLEVEL_H));
if (!qrCodeMatrix) {
qDebug() << "kein QrCode erzeugt";
return;
}
// transfer QR code into picture
m_qrImage = new QImage(qrCodeMatrix->width, qrCodeMatrix->width, QImage::Format_Mono);
for (int i = 0; i < qrCodeMatrix->width; ++i) {
for (int j = 0; j < qrCodeMatrix->width; ++j) {
m_qrImage->setPixel(j, i, qrCodeMatrix->data[i * qrCodeMatrix->width + j] & 1);
}
}
QRcode_free(qrCodeMatrix);
m_qrImage->setColor(0, qRgb(255,255,255));
m_qrImage->setColor(1, qRgb(0,0,0));
m_qrClock->setPixmap(QPixmap::fromImage(*m_qrImage));
// show human readable time
m_humanClock->setText(time.toUTC().toString() + " UTC");
}
static gboolean qr_avatar_render_hook(gpointer source, gpointer data)
{
AvatarRender *ar = (AvatarRender *)source;
GtkWidget *image = NULL;
gchar * text;
QRcode *qrcode;
unsigned char * qrdata;
GdkPixbuf *pixbuf, *pixbuf_scaled;
int i, j, k, rowstride, channels;
guchar *pixel;
debug_print("qr-avatar qr_avatar_render_hook() invoked\n");
if ((text = procmsg_msginfo_get_avatar(ar->full_msginfo, QR_AVATAR_QR_AVATAR)) != NULL) {
if ((qrcode = QRcode_encodeString8bit(text, 0, QR_ECLEVEL_L)) == NULL)
return FALSE;
qrdata = qrcode->data;
pixbuf = gdk_pixbuf_new(GDK_COLORSPACE_RGB, FALSE, 8,
qrcode->width, qrcode->width);
pixel = gdk_pixbuf_get_pixels(pixbuf);
rowstride = gdk_pixbuf_get_rowstride(pixbuf);
channels = gdk_pixbuf_get_n_channels(pixbuf);
gdk_pixbuf_fill(pixbuf, 0xffffffff);
for (i = 0; i < qrcode->width; i++)
for (j = 0; j < qrcode->width; j++) {
for (k = 0; k < channels; k++)
pixel[i * rowstride + j * channels + k] = !(*qrdata & 0x1) * 0xff;
qrdata++;
}
/* claws-mail is limited to avatar with 48x48 pixels
* TODO: skip scaling as soon as different sizes are supported */
pixbuf_scaled = gdk_pixbuf_scale_simple(pixbuf, QR_AVATAR_SIZE, QR_AVATAR_SIZE, GDK_INTERP_BILINEAR);
QRcode_free(qrcode);
g_object_unref(pixbuf);
image = gtk_image_new_from_pixbuf(pixbuf_scaled);
g_object_unref(pixbuf_scaled);
if (ar->image != NULL) /* previous plugin set one */
gtk_widget_destroy(ar->image);
ar->image = image;
return TRUE;
}
return FALSE; /* keep rendering */
}
void test_encodeEmpty8(void)
{
QRcode *qrcode;
testStart("Test encode an empty string.");
qrcode = QRcode_encodeString8bit("", 0, QR_ECLEVEL_H);
assert_null(qrcode, "QRcode_encodeString8bit() returned something.\n");
testFinish();
if(qrcode != NULL) QRcode_free(qrcode);
}
static QRcode *encode(const char *intext)
{
QRcode *code;
if(eightbit) {
code = QRcode_encodeString8bit(intext, version, level);
} else {
code = QRcode_encodeString(intext, version, level, hint, casesensitive);
}
return code;
}
static void displayQRCode(const char *secret, const char *label,
const int use_totp) {
if (qr_mode == QR_NONE) {
return;
}
char *encoderURL;
const char *url = getURL(secret, label, &encoderURL, use_totp);
/* ROCKS
Don't Display Google Chart URL. This is a bad idea for production use
puts(encoderURL);
ROCKS */
// Only newer systems have support for libqrencode. So, instead of requiring
// it at build-time, we look for it at run-time. If it cannot be found, the
// user can still type the code in manually, or he can copy the URL into
// his browser.
if (isatty(1)) {
void *qrencode = dlopen("libqrencode.so.2", RTLD_NOW | RTLD_LOCAL);
if (!qrencode) {
qrencode = dlopen("libqrencode.so.3", RTLD_NOW | RTLD_LOCAL);
}
if (qrencode) {
typedef struct {
int version;
int width;
unsigned char *data;
} QRcode;
QRcode *(*QRcode_encodeString8bit)(const char *, int, int) =
(QRcode *(*)(const char *, int, int))
dlsym(qrencode, "QRcode_encodeString8bit");
void (*QRcode_free)(QRcode *qrcode) =
(void (*)(QRcode *))dlsym(qrencode, "QRcode_free");
if (QRcode_encodeString8bit && QRcode_free) {
QRcode *qrcode = QRcode_encodeString8bit(url, 0, 1);
char *ptr = (char *)qrcode->data;
// Output QRCode using ANSI colors. Instead of black on white, we
// output black on grey, as that works independently of whether the
// user runs his terminals in a black on white or white on black color
// scheme.
// But this requires that we print a border around the entire QR Code.
// Otherwise, readers won't be able to recognize it.
if (qr_mode != QR_UTF8) {
for (int i = 0; i < 2; ++i) {
printf(ANSI_BLACKONGREY);
for (int x = 0; x < qrcode->width + 4; ++x) printf(" ");
puts(ANSI_RESET);
}
for (int y = 0; y < qrcode->width; ++y) {
printf(ANSI_BLACKONGREY" ");
int isBlack = 0;
for (int x = 0; x < qrcode->width; ++x) {
if (*ptr++ & 1) {
if (!isBlack) {
printf(ANSI_BLACK);
}
isBlack = 1;
} else {
if (isBlack) {
printf(ANSI_WHITE);
}
isBlack = 0;
}
printf(" ");
}
if (isBlack) {
printf(ANSI_WHITE);
}
puts(" "ANSI_RESET);
}
for (int i = 0; i < 2; ++i) {
printf(ANSI_BLACKONGREY);
for (int x = 0; x < qrcode->width + 4; ++x) printf(" ");
puts(ANSI_RESET);
}
} else {
// Drawing the QRCode with Unicode block elements is desirable as
// it makes the code much smaller, which is often easier to scan.
// Unfortunately, many terminal emulators do not display these
// Unicode characters properly.
printf(ANSI_BLACKONGREY);
for (int i = 0; i < qrcode->width + 4; ++i) {
printf(" ");
}
puts(ANSI_RESET);
for (int y = 0; y < qrcode->width; y += 2) {
printf(ANSI_BLACKONGREY" ");
for (int x = 0; x < qrcode->width; ++x) {
int top = qrcode->data[y*qrcode->width + x] & 1;
int bottom = 0;
if (y+1 < qrcode->width) {
bottom = qrcode->data[(y+1)*qrcode->width + x] & 1;
}
if (top) {
if (bottom) {
printf(UTF8_BOTH);
} else {
printf(UTF8_TOPHALF);
}
} else {
if (bottom) {
printf(UTF8_BOTTOMHALF);
} else {
printf(" ");
}
}
}
puts(" "ANSI_RESET);
}
printf(ANSI_BLACKONGREY);
for (int i = 0; i < qrcode->width + 4; ++i) {
printf(" ");
}
puts(ANSI_RESET);
}
QRcode_free(qrcode);
}
dlclose(qrencode);
}
}
free((char *)url);
free(encoderURL);
}
int
main(int argc, char *argv[])
{
QRcode *qr = NULL;
#ifdef CONFIG_WINDOWS
win32_io_init();
#endif
while ((opt = getopt_long(argc, argv, opt_cmd, opt_long, NULL)) >= 0) {
switch (opt) {
case OPT_HELP:
case '?':
usage(0);
break;
case OPT_NAME:
name = strdup(optarg);
break;
case OPT_VERSION:
version();
exit(EXIT_SUCCESS);
break;
case OPT_QR_SIZE:
qr_size = atoi(optarg);
break;
case OPT_TIMEOUT:
timeout = atoi(optarg);
break;
case OPT_ALPHA:
alpha_max = atoi(optarg);
if (alpha_max > 255)
alpha_max = 255;
if (alpha_max < 0)
alpha_max = 0;
break;
default:
if (app->num_cmds >= MAX_CMDS)
giveup("Too many commands specified");
app->cmd[app->num_cmds] = opt;
app->arg[app->num_cmds] = optarg;
app->num_cmds++;
}
}
if (optind + 1 != argc)
usage(2);
if (!(uri = argv[argc - 1]))
usage(2);
if (lock_instance())
goto exit;
qr = QRcode_encodeString8bit(uri , QR_MODE_8, QR_ECLEVEL_H);
if (qr == NULL)
goto exit;
struct surface surface = (struct surface) {
.width = qr->width,
.data = qr->data
};
main_window (argc, argv, &surface);
exit:
if (qr)
QRcode_free(qr);
unlock_instance();
return EXIT_SUCCESS;
}