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Merge pull request #1649

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f17c407 Add border to generated QR codes (glv2)
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luigi1111 2018-10-14 14:43:15 -05:00
commit 7fa55b49fe
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2 changed files with 15 additions and 6 deletions
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2
pages/Receive.qml
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@ -473,7 +473,7 @@ Rectangle {
Image { Image {
id: qrCode id: qrCode
anchors.fill: parent anchors.fill: parent
anchors.margins: 6 anchors.margins: 1
smooth: false smooth: false
fillMode: Image.PreserveAspectFit fillMode: Image.PreserveAspectFit

19
src/libwalletqt/QRCodeImageProvider.cpp
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@ -7,12 +7,21 @@ QImage QRCodeImageProvider::genQrImage(const QString &id, QSize *size)
using namespace qrcodegen; using namespace qrcodegen;
QrCode qrcode = QrCode::encodeText(id.toStdString().c_str(), QrCode::Ecc::MEDIUM); QrCode qrcode = QrCode::encodeText(id.toStdString().c_str(), QrCode::Ecc::MEDIUM);
QImage img = QImage(qrcode.size, qrcode.size, QImage::Format_Mono); unsigned int black = 0;
for (int y = 0; y < qrcode.size; ++y) unsigned int white = 1;
for (int x = 0; x < qrcode.size; ++x) unsigned int borderSize = 4;
img.setPixel(x, y, !qrcode.getModule(x, y)); // 1 is black, not "255/white" unsigned int imageSize = qrcode.size + (2 * borderSize);
QImage img = QImage(imageSize, imageSize, QImage::Format_Mono);
for (unsigned int y = 0; y < imageSize; ++y)
for (unsigned int x = 0; x < imageSize; ++x)
if ((x < borderSize) || (x >= imageSize - borderSize) || (y < borderSize) || (y >= imageSize - borderSize))
img.setPixel(x, y, white);
else
img.setPixel(x, y, qrcode.getModule(x - borderSize, y - borderSize) ? black : white);
if (size) if (size)
*size = QSize(qrcode.size, qrcode.size); *size = QSize(imageSize, imageSize);
return img; return img;
} }