C++ (Cpp) QQmlListReference::canClear Examples

Example #1

File: tst_qqmllistreference.cpp Project: ghjinlei/qt5

void tst_qqmllistreference::canClear()
{
    TestType *tt = new TestType;

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

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

    {
    QQmlListReference ref(tt, "data");
    QVERIFY(ref.canClear() == true);
    delete tt;
    QVERIFY(ref.canClear() == false);
    }

    {
    TestType tt;
    tt.property.clear = 0;
    QQmlListReference ref(&tt, "data");
    QVERIFY(ref.canClear() == 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: coldpeace/qt-creator-bb

static bool hasFullImplementedListInterface(const QQmlListReference &list)
{
    return list.isValid() && list.canCount() && list.canAt() && list.canAppend() && list.canClear();
}