File indexing completed on 2024-04-28 04:00:29

 /*
     SPDX-FileCopyrightText: 2010-2014 Sune Vuorela <sune@vuorela.dk>
 
     SPDX-License-Identifier: MIT
 */
 
 #include "barcodeexamplewidget.h"
 // Qt
 #include <QDrag>
 #include <QGuiApplication>
 #include <QMimeData>
 #include <QPainter>
 #include <QResizeEvent>
 #include <QScreen>
 
 using namespace Prison;
 
 BarcodeExampleWidget::BarcodeExampleWidget(std::optional<Barcode> barcode, QWidget *parent)
     : QWidget(parent)
     , m_barcode(std::move(barcode))
 {
     if (!barcode) {
         qDebug() << "unsupported barcode, showing a black square";
     }
 }
 
 BarcodeExampleWidget::BarcodeExampleWidget(BarcodeType barcode, QWidget *parent)
     : BarcodeExampleWidget(Barcode::create(barcode), parent)
 {
 }
 
 void BarcodeExampleWidget::setData(const QString &data)
 {
     if (m_barcode) {
         m_barcode->setData(data);
         updateGeometry();
         repaint();
     }
 }
 
 void BarcodeExampleWidget::paintEvent(QPaintEvent *event)
 {
     QPainter painter(this);
     if (m_barcode) {
         QRect targetrect = rect();
         QImage image = m_barcode->toImage(targetrect.size());
         if (!image.isNull()) {
             QRectF rect(targetrect.left() + targetrect.width() / 2 - image.size().width() / 2,
                         targetrect.top() + targetrect.height() / 2 - image.size().height() / 2,
                         targetrect.size().width(),
                         targetrect.height());
             painter.drawImage(rect.topLeft(), image, image.rect());
         } else {
             painter.fillRect(QRectF(QPointF(0, 0), size()), Qt::cyan);
         }
     } else {
         painter.fillRect(QRectF(QPointF(0, 0), size()), Qt::black);
     }
     QWidget::paintEvent(event);
 }
 
 void BarcodeExampleWidget::resizeEvent(QResizeEvent *event)
 {
     updateGeometry();
     repaint();
     QWidget::resizeEvent(event);
 }
 
 void BarcodeExampleWidget::mousePressEvent(QMouseEvent *event)
 {
     if (m_barcode && event->buttons() & Qt::LeftButton) {
         QMimeData *data = new QMimeData();
         data->setImageData(m_barcode->toImage(rect().size()));
         QDrag *drag = new QDrag(this);
         drag->setMimeData(data);
         drag->exec();
     } else {
         QWidget::mousePressEvent(event);
     }
 }
 
 QSize BarcodeExampleWidget::minimumSizeHint() const
 {
     if (m_barcode)
         return m_barcode->preferredSize(QGuiApplication::primaryScreen()->devicePixelRatio()).toSize();
     return QSize(10, 10);
 }
 
 BarcodeExampleWidget::~BarcodeExampleWidget() = default;