diff --git a/src/qt/receiverequestdialog.cpp b/src/qt/receiverequestdialog.cpp index de981bdb5..eb1978ee4 100644 --- a/src/qt/receiverequestdialog.cpp +++ b/src/qt/receiverequestdialog.cpp @@ -1,229 +1,247 @@ // Copyright (c) 2011-2016 The Bitcoin Core developers // Copyright (c) 2017-2019 The Bitcoin developers // Distributed under the MIT software license, see the accompanying // file COPYING or http://www.opensource.org/licenses/mit-license.php. #include #include #include #include #include #include #include #include #include #include #include #include #include #if defined(HAVE_CONFIG_H) #include /* for USE_QRCODE */ #endif #ifdef USE_QRCODE #include #endif QRImageWidget::QRImageWidget(QWidget *parent) : QLabel(parent), contextMenu(nullptr) { contextMenu = new QMenu(this); QAction *saveImageAction = new QAction(tr("&Save Image..."), this); connect(saveImageAction, &QAction::triggered, this, &QRImageWidget::saveImage); contextMenu->addAction(saveImageAction); QAction *copyImageAction = new QAction(tr("&Copy Image"), this); connect(copyImageAction, &QAction::triggered, this, &QRImageWidget::copyImage); contextMenu->addAction(copyImageAction); } bool QRImageWidget::hasPixmap() const { #if (QT_VERSION >= QT_VERSION_CHECK(5, 15, 0)) return !pixmap(Qt::ReturnByValue).isNull(); #else return pixmap() != nullptr; #endif } +bool QRImageWidget::setQR(const QString &qrData, const QString &text) { +#ifdef USE_QRCODE + setText(""); + if (qrData.isEmpty()) { + return false; + } + + // limit length + if (qrData.length() > MAX_URI_LENGTH) { + setText(tr("Resulting URI too long, try to reduce the text for label / " + "message.")); + return false; + } + + QRcode *code = QRcode_encodeString(qrData.toUtf8().constData(), 0, + QR_ECLEVEL_L, QR_MODE_8, 1); + + if (!code) { + setText(tr("Error encoding URI into QR Code.")); + return false; + } + + QImage qrImage = + QImage(code->width + 8, code->width + 8, QImage::Format_RGB32); + qrImage.fill(0xffffff); + uint8_t *p = code->data; + for (int y = 0; y < code->width; ++y) { + for (int x = 0; x < code->width; ++x) { + qrImage.setPixel(x + 4, y + 4, ((*p & 1) ? 0x0 : 0xffffff)); + ++p; + } + } + QRcode_free(code); + + QImage qrAddrImage = + QImage(QR_IMAGE_SIZE, QR_IMAGE_SIZE + (text.isEmpty() ? 0 : 20), + QImage::Format_RGB32); + qrAddrImage.fill(0xffffff); + QPainter painter(&qrAddrImage); + painter.drawImage(0, 0, qrImage.scaled(QR_IMAGE_SIZE, QR_IMAGE_SIZE)); + + if (!text.isEmpty()) { + QFont font = GUIUtil::fixedPitchFont(); + QRect paddedRect = qrAddrImage.rect(); + + // calculate ideal font size + qreal font_size = GUIUtil::calculateIdealFontSize( + paddedRect.width() - 20, text, font); + font.setPointSizeF(font_size); + + painter.setFont(font); + paddedRect.setHeight(QR_IMAGE_SIZE + 12); + painter.drawText(paddedRect, Qt::AlignBottom | Qt::AlignCenter, text); + } + + painter.end(); + setPixmap(QPixmap::fromImage(qrAddrImage)); + + return true; +#else + setText(tr("QR code support not available.")); + return false; +#endif +} + QImage QRImageWidget::exportImage() { #if (QT_VERSION >= QT_VERSION_CHECK(5, 15, 0)) return pixmap(Qt::ReturnByValue).toImage(); #else return hasPixmap() ? pixmap()->toImage() : QImage(); #endif } void QRImageWidget::mousePressEvent(QMouseEvent *event) { if (event->button() == Qt::LeftButton && hasPixmap()) { event->accept(); QMimeData *mimeData = new QMimeData; mimeData->setImageData(exportImage()); QDrag *drag = new QDrag(this); drag->setMimeData(mimeData); drag->exec(); } else { QLabel::mousePressEvent(event); } } void QRImageWidget::saveImage() { if (!hasPixmap()) { return; } QString fn = GUIUtil::getSaveFileName(this, tr("Save QR Code"), QString(), tr("PNG Image (*.png)"), nullptr); if (!fn.isEmpty()) { exportImage().save(fn); } } void QRImageWidget::copyImage() { if (!hasPixmap()) { return; } QApplication::clipboard()->setImage(exportImage()); } void QRImageWidget::contextMenuEvent(QContextMenuEvent *event) { if (!hasPixmap()) { return; } contextMenu->exec(event->globalPos()); } ReceiveRequestDialog::ReceiveRequestDialog(QWidget *parent) : QDialog(parent), ui(new Ui::ReceiveRequestDialog), model(nullptr) { ui->setupUi(this); #ifndef USE_QRCODE ui->btnSaveAs->setVisible(false); ui->lblQRCode->setVisible(false); #endif connect(ui->btnSaveAs, &QPushButton::clicked, ui->lblQRCode, &QRImageWidget::saveImage); } ReceiveRequestDialog::~ReceiveRequestDialog() { delete ui; } void ReceiveRequestDialog::setModel(WalletModel *_model) { this->model = _model; if (_model) { connect(_model->getOptionsModel(), &OptionsModel::displayUnitChanged, this, &ReceiveRequestDialog::update); } // update the display unit if necessary update(); } void ReceiveRequestDialog::setInfo(const SendCoinsRecipient &_info) { this->info = _info; update(); } void ReceiveRequestDialog::update() { if (!model) { return; } QString target = info.label; if (target.isEmpty()) { target = info.address; } setWindowTitle(tr("Request payment to %1").arg(target)); QString uri = GUIUtil::formatBitcoinURI(info); ui->btnSaveAs->setEnabled(false); QString html; html += ""; html += "" + tr("Payment information") + "
"; html += "" + tr("URI") + ": "; html += "" + GUIUtil::HtmlEscape(uri) + "
"; html += "" + tr("Address") + ": " + GUIUtil::HtmlEscape(info.address) + "
"; if (info.amount != Amount::zero()) { html += "" + tr("Amount") + ": " + BitcoinUnits::formatHtmlWithUnit( model->getOptionsModel()->getDisplayUnit(), info.amount) + "
"; } if (!info.label.isEmpty()) { html += "" + tr("Label") + ": " + GUIUtil::HtmlEscape(info.label) + "
"; } if (!info.message.isEmpty()) { html += "" + tr("Message") + ": " + GUIUtil::HtmlEscape(info.message) + "
"; } if (model->isMultiwallet()) { html += "" + tr("Wallet") + ": " + GUIUtil::HtmlEscape(model->getWalletName()) + "
"; } ui->outUri->setText(html); -#ifdef USE_QRCODE - ui->lblQRCode->setText(""); - if (!uri.isEmpty()) { - // limit URI length - if (uri.length() > MAX_URI_LENGTH) { - ui->lblQRCode->setText(tr("Resulting URI too long, try to reduce " - "the text for label / message.")); - } else { - QRcode *code = QRcode_encodeString(uri.toUtf8().constData(), 0, - QR_ECLEVEL_L, QR_MODE_8, 1); - if (!code) { - ui->lblQRCode->setText(tr("Error encoding URI into QR Code.")); - return; - } - QImage qrImage = - QImage(code->width + 8, code->width + 8, QImage::Format_RGB32); - qrImage.fill(0xffffff); - uint8_t *p = code->data; - for (int y = 0; y < code->width; y++) { - for (int x = 0; x < code->width; x++) { - qrImage.setPixel(x + 4, y + 4, ((*p & 1) ? 0x0 : 0xffffff)); - p++; - } - } - QRcode_free(code); - - QImage qrAddrImage = - QImage(QR_IMAGE_SIZE, QR_IMAGE_SIZE + 20, QImage::Format_RGB32); - qrAddrImage.fill(0xffffff); - QPainter painter(&qrAddrImage); - painter.drawImage(0, 0, - qrImage.scaled(QR_IMAGE_SIZE, QR_IMAGE_SIZE)); - QFont font = GUIUtil::fixedPitchFont(); - QRect paddedRect = qrAddrImage.rect(); - - // calculate ideal font size - qreal font_size = GUIUtil::calculateIdealFontSize( - paddedRect.width() - 20, info.address, font); - font.setPointSizeF(font_size); - - paddedRect.setHeight(QR_IMAGE_SIZE + 12); - painter.drawText(paddedRect, Qt::AlignBottom | Qt::AlignCenter, - info.address); - painter.end(); - - ui->lblQRCode->setPixmap(QPixmap::fromImage(qrAddrImage)); - ui->btnSaveAs->setEnabled(true); - } + if (ui->lblQRCode->setQR(uri, info.address)) { + ui->btnSaveAs->setEnabled(true); } -#endif } void ReceiveRequestDialog::on_btnCopyURI_clicked() { GUIUtil::setClipboard(GUIUtil::formatBitcoinURI(info)); } void ReceiveRequestDialog::on_btnCopyAddress_clicked() { GUIUtil::setClipboard(info.address); } diff --git a/src/qt/receiverequestdialog.h b/src/qt/receiverequestdialog.h index f08b96c8a..afb4f01b6 100644 --- a/src/qt/receiverequestdialog.h +++ b/src/qt/receiverequestdialog.h @@ -1,71 +1,72 @@ // Copyright (c) 2011-2016 The Bitcoin Core developers // Distributed under the MIT software license, see the accompanying // file COPYING or http://www.opensource.org/licenses/mit-license.php. #ifndef BITCOIN_QT_RECEIVEREQUESTDIALOG_H #define BITCOIN_QT_RECEIVEREQUESTDIALOG_H #include #include #include #include #include class WalletModel; namespace Ui { class ReceiveRequestDialog; } QT_BEGIN_NAMESPACE class QMenu; QT_END_NAMESPACE /* Label widget for QR code. This image can be dragged, dropped, copied and * saved * to disk. */ class QRImageWidget : public QLabel { Q_OBJECT public: explicit QRImageWidget(QWidget *parent = nullptr); bool hasPixmap() const; + bool setQR(const QString &data, const QString &text = ""); QImage exportImage(); public Q_SLOTS: void saveImage(); void copyImage(); protected: virtual void mousePressEvent(QMouseEvent *event) override; virtual void contextMenuEvent(QContextMenuEvent *event) override; private: QMenu *contextMenu; }; class ReceiveRequestDialog : public QDialog { Q_OBJECT public: explicit ReceiveRequestDialog(QWidget *parent = nullptr); ~ReceiveRequestDialog(); void setModel(WalletModel *model); void setInfo(const SendCoinsRecipient &info); private Q_SLOTS: void on_btnCopyURI_clicked(); void on_btnCopyAddress_clicked(); void update(); private: Ui::ReceiveRequestDialog *ui; WalletModel *model; SendCoinsRecipient info; }; #endif // BITCOIN_QT_RECEIVEREQUESTDIALOG_H