Connect a complex signal from QML to Qt/de

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Komplexes Signal von QML nach C++ senden (QtQuick 1)

Der Code-Schnipsel demonstriert, wie man unter QtQuick 1 ein komplexes Signal von QML aus zu einem in C++ implementierten Slot sendet.

main.cpp

  1. include <QtGui>
  2. include <QtDeclarative>

class DeclarativeView : public QDeclarativeView {

Q_OBJECT

public:

DeclarativeView(const QUrl & source) : QDeclarativeView(source)
{}
public slots:
void testSlot(QString string1, QString string2)
{
qDebug() << string1 << string2;
}

};

  1. include "main.moc"

int main(int argc, char **argv) {

QString file = "main.qml";

QApplication app(argc, argv);

DeclarativeView view(QUrl::fromLocalFile(file));

QDeclarativeItem item = qobject_cast<QDeclarativeItem>(view.rootObject());

QObject::connect(item, SIGNAL (viewClicked(QString , QString)), &view, SLOT (testSlot(QString, QString)));

view.resize(200,200);

view.show();
return app.exec();

}

main.qml import QtQuick 1.0

Item {

width: 200; height: 300
signal viewClicked(string first, string second)

MouseArea {

anchors.fill: parent
onClicked: viewClicked("first", "second")
}

}