main.cpp 范例文件

/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the Qt Charts module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:GPL$
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#include <QtWidgets/QApplication>
#include <QtQuick/QQuickView>
#include <QtCore/QDir>
#include <QtQml/QQmlEngine>
int main(int argc, char *argv[])
{
    // Qt Charts uses Qt Graphics View Framework for drawing, therefore QApplication must be used.
    QApplication app(argc, argv);
    QQuickView viewer;
    // The following are needed to make examples run without having to install the module
    // in desktop environments.
#ifdef Q_OS_WIN
    QString extraImportPath(QStringLiteral("%1/../../../../%2"));
#else
    QString extraImportPath(QStringLiteral("%1/../../../%2"));
#endif
    viewer.engine()->addImportPath(extraImportPath.arg(QGuiApplication::applicationDirPath(),
                                      QString::fromLatin1("qml")));
    QObject::connect(viewer.engine(), &QQmlEngine::quit, &viewer, &QWindow::close);
    viewer.setTitle(QStringLiteral("QML Polar Chart"));
    viewer.setSource(QUrl("qrc:/qml/qmlpolarchart/main.qml"));
    viewer.setResizeMode(QQuickView::SizeRootObjectToView);
    viewer.show();
    return app.exec();
}