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use ppm instead of svg for generating qr pixbuf

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This commit is contained in:
ouwou
2023-07-03 20:01:53 -04:00
parent ab448a3a98
commit cf02c13952
1 changed files with 12 additions and 15 deletions
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27
src/remoteauth/remoteauthdialog.cpp
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@@ -65,29 +65,26 @@ void RemoteAuthDialog::OnFingerprint(const std::string &fingerprint) {
int size = qr.getSize();
const int border = 4;
const auto module_set = "0 0 0";
const auto module_clr = "255 255 255";
std::ostringstream sb;
sb << "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n";
sb << "<!DOCTYPE svg PUBLIC \"-//W3C//DTD SVG 1.1//EN\" \"http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd\">\n";
sb << "<svg xmlns=\"http://www.w3.org/2000/svg\" version=\"1.1\" viewBox=\"0 0 ";
sb << (size + border * 2) << " " << (size + border * 2) << "\" stroke=\"none\">\n";
sb << "\t<rect width=\"100%\" height=\"100%\" fill=\"#FFFFFF\"/>\n";
sb << "\t<path d=\"";
for (int y = 0; y < size; y++) {
for (int x = 0; x < size; x++) {
sb << "P3\n";
sb << size + border * 2 << " " << size + border * 2 << " 255\n";
for (int y = -border; y < size + border; y++) {
for (int x = -border; x < size + border; x++) {
if (qr.getModule(x, y)) {
if (x != 0 || y != 0)
sb << " ";
sb << "M" << (x + border) << "," << (y + border) << "h1v1h-1z";
sb << module_set << "\n";
} else {
sb << module_clr << "\n";
}
}
}
sb << "\" fill=\"#000000\"/>\n";
sb << "</svg>\n";
const auto svg = sb.str();
const auto img = sb.str();
auto loader = Gdk::PixbufLoader::create();
loader->write(reinterpret_cast<const guint8 *>(svg.data()), svg.size());
loader->write(reinterpret_cast<const guint8 *>(img.data()), img.size());
loader->close();
const auto pb = loader->get_pixbuf()->scale_simple(256, 256, Gdk::INTERP_NEAREST);