vasilito
1e71b37bdb
Finalize all non-artifact changes accumulated from other sessions: - config updates, recipe changes, source edits, patches - pkgar/cache artifacts intentionally excluded (build outputs) This is the maximum achievable scope for this session. Hardware-accelerated KDE blocked by: QML gate, KWin/Plasma builds, hardware GPU validation — all require build system + physical GPU.
90 lines
2.4 KiB
C++
90 lines
2.4 KiB
C++
/*
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SPDX-FileCopyrightText: 2010-2014 Sune Vuorela <sune@vuorela.dk>
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SPDX-License-Identifier: MIT
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*/
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#include "barcodeexamplewidget.h"
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// Qt
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#include <QDrag>
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#include <QGuiApplication>
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#include <QMimeData>
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#include <QPainter>
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#include <QResizeEvent>
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#include <QScreen>
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using namespace Prison;
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BarcodeExampleWidget::BarcodeExampleWidget(std::optional<Barcode> barcode, QWidget *parent)
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: QWidget(parent)
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, m_barcode(std::move(barcode))
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{
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if (!barcode) {
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qDebug() << "unsupported barcode, showing a black square";
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}
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}
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BarcodeExampleWidget::BarcodeExampleWidget(BarcodeType barcode, QWidget *parent)
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: BarcodeExampleWidget(Barcode::create(barcode), parent)
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{
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}
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void BarcodeExampleWidget::setData(const QString &data)
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{
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if (m_barcode) {
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m_barcode->setData(data);
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updateGeometry();
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repaint();
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}
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}
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void BarcodeExampleWidget::paintEvent(QPaintEvent *event)
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{
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QPainter painter(this);
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if (m_barcode) {
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QRect targetrect = rect();
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QImage image = m_barcode->toImage(targetrect.size());
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if (!image.isNull()) {
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QRectF rect(targetrect.left() + targetrect.width() / 2 - image.size().width() / 2,
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targetrect.top() + targetrect.height() / 2 - image.size().height() / 2,
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targetrect.size().width(),
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targetrect.height());
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painter.drawImage(rect.topLeft(), image, image.rect());
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} else {
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painter.fillRect(QRectF(QPointF(0, 0), size()), Qt::cyan);
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}
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} else {
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painter.fillRect(QRectF(QPointF(0, 0), size()), Qt::black);
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}
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QWidget::paintEvent(event);
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}
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void BarcodeExampleWidget::resizeEvent(QResizeEvent *event)
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{
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updateGeometry();
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repaint();
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QWidget::resizeEvent(event);
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}
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void BarcodeExampleWidget::mousePressEvent(QMouseEvent *event)
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{
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if (m_barcode && event->buttons() & Qt::LeftButton) {
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QMimeData *data = new QMimeData();
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data->setImageData(m_barcode->toImage(rect().size()));
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QDrag *drag = new QDrag(this);
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drag->setMimeData(data);
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drag->exec();
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} else {
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QWidget::mousePressEvent(event);
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}
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}
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QSize BarcodeExampleWidget::minimumSizeHint() const
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{
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if (m_barcode)
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return m_barcode->preferredSize(QGuiApplication::primaryScreen()->devicePixelRatio()).toSize();
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return QSize(10, 10);
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}
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BarcodeExampleWidget::~BarcodeExampleWidget() = default;
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