main.cpp

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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
 
#include <QApplication>
#include <QtGui>
 
class MyStylePlugin : public QStylePlugin
{
    Q_OBJECT
    Q_PLUGIN_METADATA(IID "org.qt-project.Qt.QStyleFactoryInterface" FILE "mystyleplugin.json")
public:
    MyStylePlugin(QObject *parent = nullptr);
 
    QStyle *create(const QString &key) override;
};
 
class RocketStyle : public QCommonStyle
{
public:
    RocketStyle() {};
 
};
 
class StarBusterStyle : public QCommonStyle
{
public:
    StarBusterStyle() {};
};
 
MyStylePlugin::MyStylePlugin(QObject *parent)
    : QStylePlugin(parent)
{
}
 
QStringList MyStylePlugin::keys() const
{
    return QStringList() << "Rocket" << "StarBuster";
}
 
QStyle *MyStylePlugin::create(const QString &key)
{
    QString lcKey = key.toLower();
    if (lcKey == "rocket") {
        return new RocketStyle;
    } else if (lcKey == "starbuster") {
        return new StarBusterStyle;
    }
    return nullptr;
}
 
int main(int argc, char *argv[])
{
    QApplication app(argc, argv);
    MyStylePlugin plugin;
    return app.exec();
}