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// Copyright (c) 2011-2020 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_QRIMAGEWIDGET_H
#define BITCOIN_QT_QRIMAGEWIDGET_H
#include <QImage>
#include <QLabel>
/* Maximum allowed URI length */
static const int MAX_URI_LENGTH = 255;
/* Size of exported QR Code image */
static constexpr int QR_IMAGE_SIZE = 300;
static constexpr int QR_IMAGE_TEXT_MARGIN = 10;
static constexpr int QR_IMAGE_MARGIN = 2 * QR_IMAGE_TEXT_MARGIN;
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 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{nullptr};
};
#endif // BITCOIN_QT_QRIMAGEWIDGET_H
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