main.cpp Example File | Qt Script

- Qt 5.5
- Qt Script
- Default Prototypes Example
- main.cpp Example File
- Qt 5.5.1 Reference Documentation

# main.cpp Example File

script/defaultprototypes/main.cpp

    /****************************************************************************
    **
    ** Copyright (C) 2015 The Qt Company Ltd.
    ** Contact: http://www.qt.io/licensing/
    **
    ** This file is part of the examples of the Qt Toolkit.
    **
    ** $QT_BEGIN_LICENSE:BSD$
    ** You may use this file under the terms of the BSD license as follows:
    **
    ** "Redistribution and use in source and binary forms, with or without
    ** modification, are permitted provided that the following conditions are
    ** met:
    **   * Redistributions of source code must retain the above copyright
    **     notice, this list of conditions and the following disclaimer.
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    **     notice, this list of conditions and the following disclaimer in
    **     the documentation and/or other materials provided with the
    **     distribution.
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    **     contributors may be used to endorse or promote products derived
    **     from this software without specific prior written permission.
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    ** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
    ** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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    ****************************************************************************/

    #include <QtWidgets/QListWidgetItem>
    #include <QtWidgets/QApplication>
    #include <QtScript>
    #include "prototypes.h"

    Q_DECLARE_METATYPE(QListWidgetItem*)
    Q_DECLARE_METATYPE(QListWidget*)

    int main(int argc, char **argv)
    {
        Q_INIT_RESOURCE(defaultprototypes);

        QApplication app(argc, argv);
        QScriptEngine engine;

        ListWidgetItemPrototype lwiProto;
        engine.setDefaultPrototype(qMetaTypeId<QListWidgetItem*>(),
                                   engine.newQObject(&lwiProto));

        ListWidgetPrototype lwProto;
        engine.setDefaultPrototype(qMetaTypeId<QListWidget*>(),
                                   engine.newQObject(&lwProto));

        QListWidget listWidget;
        engine.globalObject().setProperty("listWidget",
                                          engine.newQObject(&listWidget));

        QFile file(":/code.js");
        file.open(QIODevice::ReadOnly);
        QScriptValue result = engine.evaluate(file.readAll());
        file.close();
        if (engine.hasUncaughtException()) {
            int lineNo = engine.uncaughtExceptionLineNumber();
            qWarning() << "line" << lineNo << ":" << result.toString();
        }

    #if defined(Q_OS_SYMBIAN)
        listWidget.showMaximized();
    #else
        listWidget.show();
    #endif
        return app.exec();
    }