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/*
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;
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