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GUI/QRImageWidget: Allow image to grow up to 25% wider to accomidate single-line text

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Accomidates addresses that are just barely too long for the QRCode width
This commit is contained in:
Luke Dashjr 2021-12-13 06:19:49 +00:00
parent 91d24c84ba
commit 4c5143d56c
1 changed files with 8 additions and 1 deletions
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9
src/qt/qrimagewidget.cpp
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@ -83,7 +83,14 @@ bool QRImageWidget::setQR(const QString& data, const QString& text)
// Plan how many lines are needed // Plan how many lines are needed
QFontMetrics fm(font); QFontMetrics fm(font);
const int text_width = GUIUtil::TextWidth(fm, text); const int text_width = GUIUtil::TextWidth(fm, text);
text_lines = (text_width + max_text_width - 1) / max_text_width; if (text_width > max_text_width && text_width < max_text_width * 5 / 4) {
// Allow the image to grow up to 25% wider
qr_image_width = text_width + (2 * QR_IMAGE_TEXT_MARGIN);
qr_image_x_margin = (qr_image_width - QR_IMAGE_SIZE) / 2;
text_lines = 1;
} else {
text_lines = (text_width + max_text_width - 1) / max_text_width;
}
qr_image_height += (fm.height() * text_lines) + QR_IMAGE_TEXT_MARGIN; qr_image_height += (fm.height() * text_lines) + QR_IMAGE_TEXT_MARGIN;
} }
QImage qrAddrImage(qr_image_width, qr_image_height, QImage::Format_RGB32); QImage qrAddrImage(qr_image_width, qr_image_height, QImage::Format_RGB32);