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Added metaDataChanged(key,value) signal to metadata controls.

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It may be more efficient and convenient for application to use this
signal instead of metaDataChanged().

metaDataChanged() signal is emitted for compatibility,
backends should emit both signals.

Signal added QMetadataReader/WritterControl,
QMediaObject and QMediaRecorder.

Change-Id: I5ca34a40e64b22034e6fde8cd7f9735cc3f72c68
Reviewed-by: Michael Goddard <michael.goddard@nokia.com>
This commit is contained in:
Dmytro Poplavskiy
2012-02-03 14:23:56 +10:00
committed by Qt by Nokia
parent fb73a56574
commit fd3a3a7292
15 changed files with 141 additions and 36 deletions
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21
tests/auto/unit/qmediaobject/tst_qmediaobject.cpp
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@@ -370,13 +370,24 @@ void tst_QMediaObject::metaDataChanged()
QtTestMetaDataService service;
QtTestMediaObject object(&service);
QSignalSpy spy(&object, SIGNAL(metaDataChanged()));
QSignalSpy changedSpy(&object, SIGNAL(metaDataChanged()));
QSignalSpy changedWithValueSpy(&object, SIGNAL(metaDataChanged(QString, QVariant)));
service.metaData.metaDataChanged();
QCOMPARE(spy.count(), 1);
service.metaData.setMetaData("key", "Value");
QCOMPARE(changedSpy.count(), 1);
QCOMPARE(changedWithValueSpy.count(), 1);
QCOMPARE(changedWithValueSpy.last()[0], QVariant("key"));
QCOMPARE(changedWithValueSpy.last()[1].value<QVariant>(), QVariant("Value"));
service.metaData.metaDataChanged();
QCOMPARE(spy.count(), 2);
service.metaData.setMetaData("key", "Value");
QCOMPARE(changedSpy.count(), 1);
QCOMPARE(changedWithValueSpy.count(), 1);
service.metaData.setMetaData("key2", "Value");
QCOMPARE(changedSpy.count(), 2);
QCOMPARE(changedWithValueSpy.count(), 2);
QCOMPARE(changedWithValueSpy.last()[0], QVariant("key2"));
QCOMPARE(changedWithValueSpy.last()[1].value<QVariant>(), QVariant("Value"));
}
void tst_QMediaObject::metaData_data()