C++ QScriptEngine::newQObject方法代码示例

int main(int argc, char *argv[])
{
    QApplication app(argc, argv);

    QScriptEngine engine;
    QFile scriptFile(":/object.js");
    scriptFile.open(QFile::ReadOnly);
    engine.evaluate(scriptFile.readAll());
    scriptFile.close();

    QTextEdit editor;
    QTimer timer;
    QScriptValue constructor = engine.evaluate("Object");
    QScriptValueList arguments;
    arguments << engine.newQObject(&timer);
    arguments << engine.newQObject(&editor);
    QScriptValue object = constructor.construct(arguments);
    if (engine.hasUncaughtException()) {
        qDebug() << engine.uncaughtException().toString();
    }

    editor.show();
    timer.start(1000);

    return app.exec();
}

int main(int argc, char *argv[])
{
    Q_INIT_RESOURCE(tetrix);

//! [1]
    QApplication app(argc, argv);
    QScriptEngine engine;

    QScriptValue Qt = engine.newQMetaObject(QtMetaObject::get());
    Qt.setProperty("App", engine.newQObject(&app));
    engine.globalObject().setProperty("Qt", Qt);
//! [1]

#ifndef QT_NO_SCRIPTTOOLS
    QScriptEngineDebugger debugger;
    debugger.attachTo(&engine);
    QMainWindow *debugWindow = debugger.standardWindow();
    debugWindow->resize(1024, 640);
#endif

//! [2]
    evaluateFile(engine, ":/tetrixpiece.js");
    evaluateFile(engine, ":/tetrixboard.js");
    evaluateFile(engine, ":/tetrixwindow.js");
//! [2]

//! [3]
    TetrixUiLoader loader;
    QFile uiFile(":/tetrixwindow.ui");
    uiFile.open(QIODevice::ReadOnly);
    QWidget *ui = loader.load(&uiFile);
    uiFile.close();

    QScriptValue ctor = engine.evaluate("TetrixWindow");
    QScriptValue scriptUi = engine.newQObject(ui, QScriptEngine::ScriptOwnership);
    QScriptValue tetrix = ctor.construct(QScriptValueList() << scriptUi);
//! [3]

    QPushButton *debugButton = qFindChild<QPushButton*>(ui, "debugButton");
#ifndef QT_NO_SCRIPTTOOLS
    QObject::connect(debugButton, SIGNAL(clicked()),
                     debugger.action(QScriptEngineDebugger::InterruptAction),
                     SIGNAL(triggered()));
    QObject::connect(debugButton, SIGNAL(clicked()),
                     debugWindow, SLOT(show()));
#else
    debugButton->hide();
#endif

//! [4]
    ui->resize(550, 370);
    ui->show();

    qsrand(QTime(0,0,0).secsTo(QTime::currentTime()));
    return app.exec();
//! [4]
}

QScriptEngine * ScriptEngineWorker::createScriptEngine(bool supportThreads)
{
	QScriptEngine *engine = new QScriptEngine();
	QLOG_INFO() << "New script engine" << engine << ", thread:" << QThread::currentThread();

	Scriptable<BatteryInterface>::registerMetatype(engine);
	Scriptable<ColorSensorInterface>::registerMetatype(engine);
	Scriptable<DisplayInterface>::registerMetatype(engine);
	Scriptable<EncoderInterface>::registerMetatype(engine);
	Scriptable<EventCodeInterface>::registerMetatype(engine);
	Scriptable<EventDeviceInterface>::registerMetatype(engine);
	Scriptable<EventInterface>::registerMetatype(engine);
	Scriptable<GamepadInterface>::registerMetatype(engine);
	Scriptable<GyroSensorInterface>::registerMetatype(engine);
	Scriptable<FifoInterface>::registerMetatype(engine);
	Scriptable<KeysInterface>::registerMetatype(engine);
	Scriptable<LedInterface>::registerMetatype(engine);
	Scriptable<LineSensorInterface>::registerMetatype(engine);
	Scriptable<MailboxInterface>::registerMetatype(engine);
	Scriptable<MotorInterface>::registerMetatype(engine);
	Scriptable<ObjectSensorInterface>::registerMetatype(engine);
	Scriptable<SensorInterface>::registerMetatype(engine);
	Scriptable<SoundSensorInterface>::registerMetatype(engine);
	Scriptable<QTimer>::registerMetatype(engine);
	qScriptRegisterMetaType(engine, timeValToScriptValue, timeValFromScriptValue);
	Scriptable<VectorSensorInterface>::registerMetatype(engine);

	qScriptRegisterSequenceMetaType<QVector<int>>(engine);
	qScriptRegisterSequenceMetaType<QStringList>(engine);

	engine->globalObject().setProperty("brick", engine->newQObject(&mBrick));
	engine->globalObject().setProperty("script", engine->newQObject(&mScriptControl));

	if (mMailbox) {
		engine->globalObject().setProperty("mailbox", engine->newQObject(mMailbox));
	}

	// Gamepad can still be accessed from script as brick.gamepad(), 'gamepad' variable is here for backwards
	// compatibility.
	if (mBrick.gamepad()) {
		engine->globalObject().setProperty("gamepad", engine->newQObject(mBrick.gamepad()));
	}

	if (supportThreads) {
		engine->globalObject().setProperty("Threading", engine->newQObject(&mThreading));
	}

	for (const auto &step : mCustomInitSteps) {
		step(engine);
	}

	evalSystemJs(engine);

	engine->setProcessEventsInterval(1);
	return engine;
}

void QFormScriptRunner::QFormScriptRunnerPrivate::initializeEngine(QWidget *w, const WidgetList &children, QScriptEngine &scriptEngine) {
    // Populate the script variables. This pushes a context which must be popped.
    QScriptContext *ctx = scriptEngine.pushContext();
    QScriptValue widgetObject =  scriptEngine.newQObject(w);
    QScriptValue childrenArray = scriptEngine.newArray (children.size());

    for(int i = 0; i < children.size(); i++) {
        childrenArray.setProperty(i, scriptEngine.newQObject(children[i]));
    }

    const QFormBuilderStrings &strings = QFormBuilderStrings::instance();
    ctx ->activationObject().setProperty(strings.scriptWidgetVariable, widgetObject);
    ctx ->activationObject().setProperty(strings.scriptChildWidgetsVariable, childrenArray);
}

int main(int argc, char *argv[])
{
    QApplication app(argc, argv);

    QDeclarativeView view;
    QDeclarativeContext *context = view.rootContext();
    context->setContextProperty("backgroundColor",
                                QColor(Qt::yellow));

    KDeclarative kdeclarative;
    kdeclarative.setDeclarativeEngine(view.engine());
    kdeclarative.initialize();
    //binds things like kconfig and icons
    kdeclarative.setupBindings();

    //If all gone well, the QScriptEngine has been extracted
    QScriptEngine *scriptEngine = kdeclarative.scriptEngine();
    Q_ASSERT(scriptEngine);

    //Bind a test QObject in the "QtScript way"
    QScriptValue global = scriptEngine->globalObject();
    TestObject *testObject = new TestObject();
    QScriptValue testValue = scriptEngine->newQObject(testObject);
    testValue.setScope(global);
    global.setProperty("testObject", testValue);

    view.setSource(QUrl::fromLocalFile("test.qml"));
    view.show();

    return app.exec();
}

 void addObject(QObject* object, const QString& name = QString()) {
     Q_ASSERT( m_engine );
     Q_ASSERT( ! m_engine->hasUncaughtException() );
     QScriptValue global = m_engine->globalObject();
     QScriptValue value = m_engine->newQObject(object, QScriptEngine::AutoOwnership);
     global.setProperty(name.isEmpty() ? object->objectName() : name, value);
 }

void tst_QScriptContext::qobjectAsActivationObject()
{
    QScriptEngine eng;
    QObject object;
    QScriptValue scriptObject = eng.newQObject(&object);
    QScriptContext *ctx = eng.pushContext();
    ctx->setActivationObject(scriptObject);
    QVERIFY(ctx->activationObject().equals(scriptObject));

    QVERIFY(!scriptObject.property("foo").isValid());
    eng.evaluate("function foo() { return 123; }");
    {
        QScriptValue val = scriptObject.property("foo");
        QVERIFY(val.isValid());
        QVERIFY(val.isFunction());
    }
    QVERIFY(!eng.globalObject().property("foo").isValid());

    QVERIFY(!scriptObject.property("bar").isValid());
    eng.evaluate("var bar = 123");
    {
        QScriptValue val = scriptObject.property("bar");
        QVERIFY(val.isValid());
        QVERIFY(val.isNumber());
        QCOMPARE(val.toInt32(), 123);
    }
    QVERIFY(!eng.globalObject().property("bar").isValid());

    {
        QScriptValue val = eng.evaluate("delete foo");
        QVERIFY(val.isBool());
        QVERIFY(val.toBool());
        QVERIFY(!scriptObject.property("foo").isValid());
    }
}

World *ScriptEvaluator::evaluate(const QString &script)
{
    QScriptEngine engine;

    World* world = new World();
    QScriptValue worldValue = engine.newQObject(world);
    engine.globalObject().setProperty("world", worldValue);

    QScriptValue directionalLightClass = engine.scriptValueFromQMetaObject<DirectionalLight>();
    engine.globalObject().setProperty("DirectionalLight", directionalLightClass);

    engine.evaluate(script);
    if (engine.hasUncaughtException())
    {
        QMessageBox messageBox;
        messageBox.setIcon(QMessageBox::Warning);
        messageBox.setWindowTitle("Script error");
        messageBox.setText("An error occurred while executing the script.");
        messageBox.setInformativeText(engine.uncaughtException().toString());
        messageBox.setDetailedText(engine.uncaughtExceptionBacktrace().join("\n"));
        messageBox.exec();
        return 0;
    }

    return world;
}

int main(int argc, char *argv[])
{
    QCoreApplication a(argc, argv);
    MagicCore SomeMagicCoreClass;

    QScriptEngine scriptEngine;

    QScriptValue scriptMagicCore = scriptEngine.newQObject (&SomeMagicCoreClass);
    Q_ASSERT (scriptMagicCore.isQObject());

    scriptEngine.globalObject().setProperty("Core", scriptMagicCore);

    ReadScriptsFromPath(QDir("./scripts/objects/"), scriptEngine);
    ReadScriptsFromPath(QDir("./scripts/levels/"), scriptEngine);

    char szLine[256];
    strcpy(szLine, "");

    std::cout << std::endl << "Entering scripting console: " << std::endl;

    while (strcmp(szLine, "exit") != 0)
    {
        // evaluate script line and store return value
        QScriptValue retVal = scriptEngine.evaluate(szLine);

        if (retVal.isUndefined() == false)
            std::cout << "ScriptEngine returns: " << retVal.toString().toStdString() << std::endl;

        // read line
        strcpy(szLine, "");
        std::cin.getline(szLine, 256);
    }


   /* QScriptValue object = scriptEngine.globalObject().property("testObject");
    Q_ASSERT(object.isValid());

    QScriptValue SlotMethod = object.property("ExampleSlot1");
    Q_ASSERT(SlotMethod.isFunction());

    bool bOk = qScriptConnect(&SomeMagicCoreClass, SIGNAL(TestSignal()), object, SlotMethod);
    Q_ASSERT(bOk);


    QScriptValue object2 = scriptEngine.globalObject().property("testObject2");
    Q_ASSERT(object2.isValid());

    QScriptValue SlotMethod2 = object2.property("ExampleSlot2");
    Q_ASSERT(SlotMethod2.isFunction());

    bool bOk2 = qScriptConnect(&SomeMagicCoreClass, SIGNAL(TestSignal()), object2, SlotMethod2);
    Q_ASSERT(bOk2);

    SomeMagicCoreClass.TriggerSignal();*/

    return 0;
    /*a.exit(0);

    return a.exec();*/
}

int main(int argc, char **argv)
{
	Q_INIT_RESOURCE(rtfedit);
	
    QApplication app(argc, argv);
    QTextCodec::setCodecForTr(QTextCodec::codecForLocale());
    QScriptEngine engine;

    QFile scriptFile(":/rtfedit.js");
    scriptFile.open(QIODevice::ReadOnly);
    engine.evaluate(QObject::tr(scriptFile.readAll()));
    scriptFile.close();

    RTFUiLoader loader;
    QFile uiFile(":/rtfedit.ui");
    uiFile.open(QIODevice::ReadOnly);
    QWidget *ui = loader.load(&uiFile);
    uiFile.close();

    QScriptValue func = engine.evaluate("RTF");
    QScriptValue scriptUi = engine.newQObject(ui);
    QScriptValue table = func.construct(QScriptValueList() << scriptUi);
    if(engine.hasUncaughtException()) {
    	QScriptValue value = engine.uncaughtException();
    	QString lineNumber = QString("\nLine Number:%1\n").arg(engine.uncaughtExceptionLineNumber());
    	QStringList btList = engine.uncaughtExceptionBacktrace();
    	QString trace;
    	for(short i=0; i<btList.size(); ++i)
    		trace += btList.at(i);
    	QMessageBox::information(NULL, QObject::tr("Exception"), value.toString() + lineNumber + trace );
    }

    ui->show();
    return app.exec();
}

inline void defineFunction(ScriptEngine *se, const QString &name,
                           QScriptEngine::FunctionSignature f) {
  QScriptEngine *engine = se->getQScriptEngine();
  QScriptValue fObj     = engine->newFunction(f);
  fObj.setData(engine->newQObject(se));
  engine->globalObject().setProperty(name, fObj);
}

int main(int argc, char *argv[])
{
    QCoreApplication a(argc, argv);

    QString fileName = "load.qs";

    QFile scriptFile(fileName);
    if (!scriptFile.open(QIODevice::ReadOnly))
    {
        // handle error
        qDebug()<<"File open error";
    }
    else
    {
        QFileInfo info(scriptFile);
        qDebug()<< "File Path" + info.absoluteFilePath();
    }
    QTextStream stream(&scriptFile);
    QString contents = stream.readAll();
    scriptFile.close();
    ScriptFunctions functions;
    QScriptEngine myEngine;
    QScriptValue scriptFunctions = myEngine.newQObject(&functions);
    myEngine.globalObject().setProperty("nativeFunctions", scriptFunctions);
    myEngine.globalObject().setProperty("load", myEngine.newFunction(loadScripts, /*length=*/1));


    QScriptValue result = myEngine.evaluate(contents, fileName);
     if (myEngine.hasUncaughtException()) {
         int line = myEngine.uncaughtExceptionLineNumber();
         qDebug() << "uncaught exception at line" << line << ":" << result.toString();
     }

    return a.exec();
}

            bool init() {
                if( m_script->action()->hadError() )
                    m_script->action()->clearError();

                delete m_engine;
                m_engine = new QScriptEngine();

                // load the Qross QScriptExtensionPlugin plugin that provides
                // us a bridge between Qross and QtScript. See here plugin.h
                m_engine->importExtension("qross");
                if( m_engine->hasUncaughtException() ) {
                    handleException();
                    delete m_engine;
                    m_engine = 0;
                    return false;
                }

                // the Qross QScriptExtensionPlugin exports the "Qross" property.
                QScriptValue global = m_engine->globalObject();
                m_qross = global.property("Qross");
                Q_ASSERT( m_qross.isQObject() );
                Q_ASSERT( ! m_engine->hasUncaughtException() );

                // Attach our Qross::Action instance to be able to access it in
                // scripts. Just like at the Kjs-backend we publish our own
                // action as "self".
                m_self = m_engine->newQObject( m_script->action() );
                global.setProperty("self", m_self, QScriptValue::ReadOnly|QScriptValue::Undeletable);

                { // publish the global objects.
                    QHash< QString, QObject* > objects = Manager::self().objects();
                    QHash< QString, QObject* >::Iterator it(objects.begin()), end(objects.end());
                    for(; it != end; ++it)
                        global.setProperty(it.key(), m_engine->newQObject( it.value() ) );
                }

                { // publish the local objects.
                    QHash< QString, QObject* > objects = m_script->action()->objects();
                    QHash< QString, QObject* >::Iterator it(objects.begin()), end(objects.end());
                    for(; it != end; ++it) {
                        copyEnumsToProperties( it.value() );
                        global.setProperty(it.key(), m_engine->newQObject( it.value() ) );
                    }
                }

                return ! m_engine->hasUncaughtException();
            }

// Perhaps shpw entire example for getting debugger up with script
int main(int argv, char **args)
{
    QApplication app(argv, args);

     QString fileName("helloscript.qs");
     QFile scriptFile(fileName);
     scriptFile.open(QIODevice::ReadOnly);
     QTextStream stream(&scriptFile);
     QString contents = stream.readAll();
     scriptFile.close();

    QScriptEngine *engine = new QScriptEngine();

    QScriptEngineDebugger *debugger = new QScriptEngineDebugger();
    debugger->attachTo(engine);

    // Set up configuration with only stack and code
    QWidget *widget = new QWidget;
//![0]
    QWidget *codeWindow = debugger->widget(QScriptEngineDebugger::CodeWidget);
    QWidget *stackWidget = debugger->widget(QScriptEngineDebugger::StackWidget);

    QLayout *layout = new QHBoxLayout;
    layout->addWidget(codeWindow);
    layout->addWidget(stackWidget);
//![0]

//![1]
    QAction *continueAction = debugger->action(QScriptEngineDebugger::ContinueAction);
    QAction *stepOverAction = debugger->action(QScriptEngineDebugger::StepOverAction);
    QAction *stepIntoAction = debugger->action(QScriptEngineDebugger::StepIntoAction);

    QToolBar *toolBar = new QToolBar;
    toolBar->addAction(continueAction);
//![1]
    toolBar->addAction(stepOverAction);
    toolBar->addAction(stepIntoAction);

    layout->addWidget(toolBar);
    continueAction->setIcon(QIcon("copy.png"));

    debugger->setAutoShowStandardWindow(false);

    widget->setLayout(layout);
    widget->show();

     QPushButton button;
     QScriptValue scriptButton = engine->newQObject(&button);
     engine->globalObject().setProperty("button", scriptButton);

//![2]
     debugger->action(QScriptEngineDebugger::InterruptAction)->trigger();
     engine->evaluate(contents, fileName);
//![2]

    return app.exec();
}

bool TCPNetworkServerPlugin::ConfigureScriptEngine(QScriptEngine &engine)
{
	QScriptValue TCPNetworkServerProto = engine.newQObject(TCPNetworkServerObject);
	engine.setDefaultPrototype(qMetaTypeId<TCPNetworkServer*>(), TCPNetworkServerProto);
	QScriptValue TCPNetworkServerCtor = engine.newFunction(TCPNetworkServer::ctor__extensionname, TCPNetworkServerProto);
	engine.globalObject().setProperty(PLUGIN_SCRIPTOBJECT_NAME, TCPNetworkServerCtor);
    //int nRes = 
		qRegisterMetaType<TCPNetworkServer>(PLUGIN_SCRIPTOBJECT_NAME);
	//FinalizeScriptObjectScriptContext(engine, TCPNetworkServerObject);
	return true;
}