C++ (Cpp) QQmlListReference::clear Examples

Example #1

File: tst_qqmllistreference.cpp Project: ghjinlei/qt5

void tst_qqmllistreference::clear()
{
    TestType *tt = new TestType;
    tt->data.append(tt);
    tt->data.append(0);
    tt->data.append(tt);

    {
    QQmlListReference ref;
    QVERIFY(ref.clear() == false);
    }

    {
    QQmlListReference ref(tt, "blah");
    QVERIFY(ref.clear() == false);
    }

    {
    QQmlListReference ref(tt, "data");
    QVERIFY(ref.clear() == true);
    QVERIFY(tt->data.count() == 0);
    delete tt;
    QVERIFY(ref.clear() == false);
    }

    {
    TestType tt;
    tt.property.clear = 0;
    QQmlListReference ref(&tt, "data");
    QVERIFY(ref.clear() == false);
    }
}

Example #2

File: tst_qqmllistreference.cpp Project: ghjinlei/qt5

void tst_qqmllistreference::qmllistreference_invalid()
{
    TestType tt;

    // Invalid
    {
    QQmlListReference r;
    QVERIFY(r.isValid() == false);
    QVERIFY(r.object() == 0);
    QVERIFY(r.listElementType() == 0);
    QVERIFY(r.canAt() == false);
    QVERIFY(r.canClear() == false);
    QVERIFY(r.canCount() == false);
    QVERIFY(r.append(0) == false);
    QVERIFY(r.at(10) == 0);
    QVERIFY(r.clear() == false);
    QVERIFY(r.count() == 0);
    QVERIFY(r.isReadable() == false);
    QVERIFY(r.isManipulable() == false);
    }

    // Non-property
    {
    QQmlListReference r(&tt, "blah");
    QVERIFY(r.isValid() == false);
    QVERIFY(r.object() == 0);
    QVERIFY(r.listElementType() == 0);
    QVERIFY(r.canAt() == false);
    QVERIFY(r.canClear() == false);
    QVERIFY(r.canCount() == false);
    QVERIFY(r.append(0) == false);
    QVERIFY(r.at(10) == 0);
    QVERIFY(r.clear() == false);
    QVERIFY(r.count() == 0);
    QVERIFY(r.isReadable() == false);
    QVERIFY(r.isManipulable() == false);
    }

    // Non-list property
    {
    QQmlListReference r(&tt, "intProperty");
    QVERIFY(r.isValid() == false);
    QVERIFY(r.object() == 0);
    QVERIFY(r.listElementType() == 0);
    QVERIFY(r.canAt() == false);
    QVERIFY(r.canClear() == false);
    QVERIFY(r.canCount() == false);
    QVERIFY(r.append(0) == false);
    QVERIFY(r.at(10) == 0);
    QVERIFY(r.clear() == false);
    QVERIFY(r.count() == 0);
    QVERIFY(r.isReadable() == false);
    QVERIFY(r.isManipulable() == false);
    }
}

Example #3

File: objectnodeinstance.cpp Project: qtproject/qt-creator

void ObjectNodeInstance::deleteObjectsInList(const QQmlProperty &property)
{
    QObjectList objectList;
    QQmlListReference list = qvariant_cast<QQmlListReference>(property.read());

    if (!QmlPrivateGate::hasFullImplementedListInterface(list)) {
        qWarning() << "Property list interface not fully implemented for Class " << property.property().typeName() << " in property " << property.name() << "!";
        return;
    }

    for (int i = 0; i < list.count(); i++) {
        objectList += list.at(i);
    }

    list.clear();
}