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QSFPM: Avoid following a reset with unnecessary layoutChanged

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Follow the pattern used to guard Private::sort() calls elsewhere in the
class.

Because QAbstractItemModel::sort() is not called in the unit test, the
content is not sorted after resetting.

[ChangeLog][QtCore][QSortFilterProxyModel] QSortFilterProxyModel
now does not emit an unnecessary layoutChanged() following a model
reset.

Change-Id: I0a36c7fbb172bdd06ecddb489c5595debbef6cb9
Reviewed-by: Milian Wolff <milian.wolff@kdab.com>
This commit is contained in:
Stephen Kelly 2016-06-03 14:18:41 +02:00 committed by Giuseppe D'Angelo
parent 24961cb18c
commit 3ffcfc357d
2 changed files with 25 additions and 1 deletions
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2
src/corelib/itemmodels/qsortfilterproxymodel.cpp
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@ -1408,7 +1408,7 @@ void QSortFilterProxyModelPrivate::_q_sourceReset()
// All internal structures are deleted in clear()
q->endResetModel();
update_source_sort_column();
if (dynamic_sortfilter)
if (dynamic_sortfilter && update_source_sort_column())
sort();
}

24
tests/auto/corelib/itemmodels/qsortfilterproxymodel/tst_qsortfilterproxymodel.cpp
View File

@ -94,6 +94,7 @@ private slots:
void changeSourceDataKeepsStableSorting_qtbug1548();
void changeSourceDataForwardsRoles_qtbug35440();
void resortingDoesNotBreakTreeModels();
void dynamicFilterWithoutSort();
void sortFilterRole();
void selectionFilteredOut();
void match_data();
@ -4485,6 +4486,29 @@ void tst_QSortFilterProxyModel::emitLayoutChangedOnlyIfSortingChanged()
QCOMPARE(proxyLayoutChangedSpy.size(), expectedLayoutChanged);
}
void tst_QSortFilterProxyModel::dynamicFilterWithoutSort()
{
QStringListModel model;
const QStringList initial = QString("bravo charlie delta echo").split(QLatin1Char(' '));
model.setStringList(initial);
QSortFilterProxyModel proxy;
proxy.setDynamicSortFilter(true);
proxy.setSourceModel(&model);
QSignalSpy layoutChangeSpy(&proxy, &QAbstractItemModel::layoutChanged);
QSignalSpy resetSpy(&proxy, &QAbstractItemModel::modelReset);
QVERIFY(layoutChangeSpy.isValid());
QVERIFY(resetSpy.isValid());
model.setStringList(QStringList() << "Monday" << "Tuesday" << "Wednesday" << "Thursday" << "Friday");
QVERIFY(layoutChangeSpy.isEmpty());
QCOMPARE(model.stringList(), QStringList() << "Monday" << "Tuesday" << "Wednesday" << "Thursday" << "Friday");
QCOMPARE(resetSpy.count(), 1);
}
QTEST_MAIN(tst_QSortFilterProxyModel)
#include "tst_qsortfilterproxymodel.moc"