Enumerate QML properties in Qt C++?

Question

Im doing the following to render a QML in my Qt embedded app:

QDeclarativeView *view = new QDeclarativeView(this);
view->setSource(QUrl::fromLocalFile("dial.qml"));
view->show();
QObject *dial = view->rootObject();

Is there a way i can enumerate all the property values defined in the root item?

For example, if i have the QML:

import QtQuick 1.0
Item {
  id: root
  property real dial_value : 0
  property real dial_length: 0
  property real background_opacity: 1
  etc, etc
}

Is there a Qt method that will end up with me having a list of these strings:

dial_value
dial_length
background_opacity

Ive tried, the following, but it the list is empty:

QList<QByteArray> list = dial->dynamicPropertyNames();

Thanks in advance!

Have you tried dial->metaObject->property(index); in a loop with the propertyCount() method and then the name() method? — László Papp
– László Papp, Commented May 23, 2014 at 19:37

László Papp · Accepted Answer · 2014-05-24 03:46:19Z

1

You could write it:

for (int i = 0; i < dial->metaObject->propertyCount(); ++i) {
    QMetaProperty metaProperty = dial->metaobject()->property(i);
    qDebug() << metaProperty.name();
}

edited May 24, 2014 at 3:46

answered May 24, 2014 at 2:19

László Papp

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