212 lines
6.3 KiB
C++
212 lines
6.3 KiB
C++
// Copyright (c) 2011-2018 The Bitcoin Core developers
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// Distributed under the MIT software license, see the accompanying
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// file COPYING or http://www.opensource.org/licenses/mit-license.php.
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#include <qt/receiverequestdialog.h>
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#include <qt/forms/ui_receiverequestdialog.h>
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#include <qt/bitcoinunits.h>
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#include <qt/guiconstants.h>
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#include <qt/guiutil.h>
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#include <qt/optionsmodel.h>
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#include <QClipboard>
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#include <QDrag>
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#include <QMenu>
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#include <QMimeData>
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#include <QMouseEvent>
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#include <QPixmap>
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#if defined(HAVE_CONFIG_H)
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#include <config/bitcoin-config.h> /* for USE_QRCODE */
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#endif
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#ifdef USE_QRCODE
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#include <qrencode.h>
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#endif
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QRImageWidget::QRImageWidget(QWidget *parent):
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QLabel(parent), contextMenu(nullptr)
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{
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contextMenu = new QMenu(this);
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QAction *saveImageAction = new QAction(tr("&Save Image..."), this);
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connect(saveImageAction, &QAction::triggered, this, &QRImageWidget::saveImage);
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contextMenu->addAction(saveImageAction);
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QAction *copyImageAction = new QAction(tr("&Copy Image"), this);
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connect(copyImageAction, &QAction::triggered, this, &QRImageWidget::copyImage);
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contextMenu->addAction(copyImageAction);
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}
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QImage QRImageWidget::exportImage()
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{
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if(!pixmap())
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return QImage();
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return pixmap()->toImage();
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}
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void QRImageWidget::mousePressEvent(QMouseEvent *event)
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{
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if(event->button() == Qt::LeftButton && pixmap())
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{
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event->accept();
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QMimeData *mimeData = new QMimeData;
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mimeData->setImageData(exportImage());
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QDrag *drag = new QDrag(this);
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drag->setMimeData(mimeData);
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drag->exec();
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} else {
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QLabel::mousePressEvent(event);
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}
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}
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void QRImageWidget::saveImage()
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{
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if(!pixmap())
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return;
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QString fn = GUIUtil::getSaveFileName(this, tr("Save QR Code"), QString(), tr("PNG Image (*.png)"), nullptr);
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if (!fn.isEmpty())
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{
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exportImage().save(fn);
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}
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}
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void QRImageWidget::copyImage()
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{
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if(!pixmap())
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return;
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QApplication::clipboard()->setImage(exportImage());
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}
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void QRImageWidget::contextMenuEvent(QContextMenuEvent *event)
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{
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if(!pixmap())
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return;
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contextMenu->exec(event->globalPos());
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}
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ReceiveRequestDialog::ReceiveRequestDialog(QWidget *parent) :
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QDialog(parent),
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ui(new Ui::ReceiveRequestDialog),
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model(nullptr)
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{
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ui->setupUi(this);
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#ifndef USE_QRCODE
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ui->btnSaveAs->setVisible(false);
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ui->lblQRCode->setVisible(false);
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#endif
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connect(ui->btnSaveAs, &QPushButton::clicked, ui->lblQRCode, &QRImageWidget::saveImage);
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}
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ReceiveRequestDialog::~ReceiveRequestDialog()
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{
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delete ui;
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}
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void ReceiveRequestDialog::setModel(WalletModel *_model)
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{
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this->model = _model;
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if (_model)
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connect(_model->getOptionsModel(), &OptionsModel::displayUnitChanged, this, &ReceiveRequestDialog::update);
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// update the display unit if necessary
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update();
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}
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void ReceiveRequestDialog::setInfo(const SendCoinsRecipient &_info)
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{
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this->info = _info;
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update();
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}
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void ReceiveRequestDialog::update()
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{
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if(!model)
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return;
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QString target = info.label;
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if(target.isEmpty())
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target = info.address;
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setWindowTitle(tr("Request payment to %1").arg(target));
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QString uri = GUIUtil::formatBitcoinURI(info);
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ui->btnSaveAs->setEnabled(false);
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QString html;
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html += "<html><font face='verdana, arial, helvetica, sans-serif'>";
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html += "<b>"+tr("Payment information")+"</b><br>";
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html += "<b>"+tr("URI")+"</b>: ";
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html += "<a href=\""+uri+"\">" + GUIUtil::HtmlEscape(uri) + "</a><br>";
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html += "<b>"+tr("Address")+"</b>: " + GUIUtil::HtmlEscape(info.address) + "<br>";
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if(info.amount)
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html += "<b>"+tr("Amount")+"</b>: " + BitcoinUnits::formatHtmlWithUnit(model->getOptionsModel()->getDisplayUnit(), info.amount) + "<br>";
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if(!info.label.isEmpty())
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html += "<b>"+tr("Label")+"</b>: " + GUIUtil::HtmlEscape(info.label) + "<br>";
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if(!info.message.isEmpty())
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html += "<b>"+tr("Message")+"</b>: " + GUIUtil::HtmlEscape(info.message) + "<br>";
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if(model->isMultiwallet()) {
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html += "<b>"+tr("Wallet")+"</b>: " + GUIUtil::HtmlEscape(model->getWalletName()) + "<br>";
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}
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ui->outUri->setText(html);
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#ifdef USE_QRCODE
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ui->lblQRCode->setText("");
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if(!uri.isEmpty())
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{
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// limit URI length
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if (uri.length() > MAX_URI_LENGTH)
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{
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ui->lblQRCode->setText(tr("Resulting URI too long, try to reduce the text for label / message."));
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} else {
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QRcode *code = QRcode_encodeString(uri.toUtf8().constData(), 0, QR_ECLEVEL_L, QR_MODE_8, 1);
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if (!code)
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{
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ui->lblQRCode->setText(tr("Error encoding URI into QR Code."));
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return;
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}
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QImage qrImage = QImage(code->width + 8, code->width + 8, QImage::Format_RGB32);
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qrImage.fill(0xffffff);
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unsigned char *p = code->data;
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for (int y = 0; y < code->width; y++)
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{
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for (int x = 0; x < code->width; x++)
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{
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qrImage.setPixel(x + 4, y + 4, ((*p & 1) ? 0x0 : 0xffffff));
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p++;
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}
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}
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QRcode_free(code);
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QImage qrAddrImage = QImage(QR_IMAGE_SIZE, QR_IMAGE_SIZE+20, QImage::Format_RGB32);
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qrAddrImage.fill(0xffffff);
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QPainter painter(&qrAddrImage);
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painter.drawImage(0, 0, qrImage.scaled(QR_IMAGE_SIZE, QR_IMAGE_SIZE));
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QFont font = GUIUtil::fixedPitchFont();
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QRect paddedRect = qrAddrImage.rect();
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// calculate ideal font size
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qreal font_size = GUIUtil::calculateIdealFontSize(paddedRect.width() - 20, info.address, font);
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font.setPointSizeF(font_size);
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painter.setFont(font);
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paddedRect.setHeight(QR_IMAGE_SIZE+12);
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painter.drawText(paddedRect, Qt::AlignBottom|Qt::AlignCenter, info.address);
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painter.end();
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ui->lblQRCode->setPixmap(QPixmap::fromImage(qrAddrImage));
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ui->btnSaveAs->setEnabled(true);
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}
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}
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#endif
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}
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void ReceiveRequestDialog::on_btnCopyURI_clicked()
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{
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GUIUtil::setClipboard(GUIUtil::formatBitcoinURI(info));
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}
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void ReceiveRequestDialog::on_btnCopyAddress_clicked()
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{
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GUIUtil::setClipboard(info.address);
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}
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