mirror of
https://github.com/crystalidea/qt6windows7.git
synced 2024-11-23 20:10:48 +08:00
90 lines
2.5 KiB
C++
90 lines
2.5 KiB
C++
// Copyright (C) 2020 The Qt Company Ltd.
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// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
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#include <QtGui>
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constexpr qreal border = 20;
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class Window : public QRasterWindow
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{
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public:
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explicit Window(QWindow *parent = nullptr) : QRasterWindow(parent)
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{
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resize(300, 200);
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setMinimumSize(QSize(border*2, border*2));
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}
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protected:
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void resizeOrMove(const QPointF &p);
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bool event(QEvent *event) override;
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void paintEvent(QPaintEvent *event) override;
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};
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void Window::resizeOrMove(const QPointF &p)
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{
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Qt::Edges edges;
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if (p.x() > width() - border)
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edges |= Qt::RightEdge;
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if (p.x() < border)
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edges |= Qt::LeftEdge;
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if (p.y() < border)
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edges |= Qt::TopEdge;
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if (p.y() > height() - border)
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edges |= Qt::BottomEdge;
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if (edges != 0) {
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qDebug() << "startSystemResize" << edges;
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if (startSystemResize(edges))
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qDebug() << " -> supported";
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else
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qDebug() << " -> not supported";
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} else {
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qDebug() << "startSystemMove";
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if (startSystemMove())
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qDebug() << " -> supported";
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else
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qDebug() << " -> not supported";
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}
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}
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bool Window::event(QEvent *event)
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{
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switch (event->type()) {
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case QEvent::MouseButtonPress:
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qDebug() << "Mouse press";
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resizeOrMove(static_cast<QMouseEvent *>(event)->position());
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return true;
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case QEvent::TouchUpdate:
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qDebug() << "Touch update";
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resizeOrMove(static_cast<QTouchEvent *>(event)->points().first().position());
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return true;
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case QEvent::TouchBegin:
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qDebug() << "Touch begin";
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resizeOrMove(static_cast<QTouchEvent *>(event)->points().first().position());
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return true;
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case QEvent::TouchEnd:
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qDebug() << "Touch end";
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return true;
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default:
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return QRasterWindow::event(event);
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}
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}
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void Window::paintEvent(QPaintEvent *event)
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{
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Q_UNUSED(event);
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QPainter painter(this);
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QRect fullRect(0, 0, width(), height());
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QRect innerRect = fullRect.marginsRemoved(QMargins(border, border, border, border));
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painter.fillRect(fullRect, QGradient::WarmFlame);
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painter.fillRect(innerRect, QGradient::NightFade);
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painter.drawText(QRectF(0, 0, width(), height()), Qt::AlignCenter, QStringLiteral("Click mouse or touch to move window\nDrag along the sides to resize."));
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}
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int main(int argc, char **argv)
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{
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QGuiApplication app(argc, argv);
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Window window;
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window.show();
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return app.exec();
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}
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