[Solved] error while Embedding C++ object into qml components

sinjar

I wanted to check out how well the embedding of c++ objects in qml works
For this purpose I have the following code in QT Quick Application

main.cpp
@#include <QtGui/QApplication>
#include <QDeclarativeContext>
#include <QKeyEvent>
#include "qmlapplicationviewer.h"

class Factorial : public QObject {
int x;

public:
Factorial(int z) {
x=z;
}
Q_INVOKABLE QString fact() const {
int f=1;
QString str;
for(int i=x;i>0;i--)
f=f*i--;
str=QString::number(f);
return str;
}
};

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

QmlApplicationViewer viewer;
Factorial f(10);
viewer.rootContext()->setContextProperty("factorial",&f);
viewer.setOrientation(QmlApplicationViewer::ScreenOrientationAuto);
viewer.setMainQmlFile&#40;QLatin1String("qml/test1/main.qml"&#41;&#41;;
viewer.showExpanded(&#41;;

return app.exec(&#41;;

}
@

main.qml:
@import QtQuick 1.0

Rectangle {
id: rectangle1
width: 360
height: 360

Rectangle {
    id: rectangle2
    x: 93
    y: 89
    width: 157
    height: 80
    color: "#912323"
    MouseArea   {
        id:marea1
        anchors.fill: parent
        onClicked: console.log(factorial.fact(&#41;&#41;
    }
}

}
@

Now when I run the code and click the mouse area I get the following error message
file:///home/sinjar/nokia/test1-build-simulator/qml/test1/main.qml:18: TypeError: Result of expression 'factorial.fact' [undefined] is not a function.

Can someone please tell me where i am going wrong
Thanks

mlong

Add the Q_OBJECT macro to your Factorial class.
Either break the Factorial class into its own cpp and header files (easiest), or include the generated moc file manually.

sinjar

@mlong: Thanks....

mlong

No problem! If it's working for you, be sure and change the thread title to add [Solved]. Thanks!