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Fix invalid QSortFilterProxyModel::dataChanged parameters

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QSortFilterModel shouldn't forward dataChanged() when the source model changes data in columns that the filter model refuses

Fixes: QTBUG-86850
Pick-to: 5.15
Change-Id: I26565d119d2aa36ea07b3de0c15f1b137bc002f8
Reviewed-by: David Faure <david.faure@kdab.com>
This commit is contained in:
Wang ChunLin 2020-10-15 11:34:46 +08:00
parent 5b3cc25492
commit 66acca3316
3 changed files with 181 additions and 9 deletions
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22
src/corelib/itemmodels/qsortfilterproxymodel.cpp
View File

@ -1404,15 +1404,19 @@ void QSortFilterProxyModelPrivate::_q_sourceDataChanged(const QModelIndex &sourc
while (source_left_column < source_bottom_right.column()
&& m->proxy_columns.at(source_left_column) == -1)
++source_left_column;
const QModelIndex proxy_top_left = create_index(
proxy_start_row, m->proxy_columns.at(source_left_column), it);
int source_right_column = source_bottom_right.column();
while (source_right_column > source_top_left.column()
&& m->proxy_columns.at(source_right_column) == -1)
--source_right_column;
const QModelIndex proxy_bottom_right = create_index(
proxy_end_row, m->proxy_columns.at(source_right_column), it);
emit q->dataChanged(proxy_top_left, proxy_bottom_right, roles);
if (m->proxy_columns.at(source_left_column) != -1) {
const QModelIndex proxy_top_left = create_index(
proxy_start_row, m->proxy_columns.at(source_left_column), it);
int source_right_column = source_bottom_right.column();
while (source_right_column > source_top_left.column()
&& m->proxy_columns.at(source_right_column) == -1)
--source_right_column;
if (m->proxy_columns.at(source_right_column) != -1) {
const QModelIndex proxy_bottom_right = create_index(
proxy_end_row, m->proxy_columns.at(source_right_column), it);
emit q->dataChanged(proxy_top_left, proxy_bottom_right, roles);
}
}
}
}

166
tests/auto/corelib/itemmodels/qsortfilterproxymodel_common/tst_qsortfilterproxymodel.cpp
View File

@ -2192,6 +2192,172 @@ void tst_QSortFilterProxyModel::changeSourceDataProxySendDataChanged_qtbug87781(
QCOMPARE(afterDataChangedSpy.size(), 1);
}
void tst_QSortFilterProxyModel::changeSourceDataProxyFilterSingleColumn()
{
enum modelRow { Row0, Row1, RowCount };
enum modelColumn { Column0, Column1, Column2, Column3, Column4, Column5, ColumnCount };
class FilterProxyModel : public QSortFilterProxyModel
{
public:
bool filterAcceptsColumn(int source_column, const QModelIndex &source_parent) const override {
Q_UNUSED(source_parent);
switch (source_column) {
case Column2:
case Column4:
return true;
default:
return false;
}
}
};
QStandardItemModel model;
FilterProxyModel proxy;
proxy.setSourceModel(&model);
model.insertRows(0, RowCount);
model.insertColumns(0, ColumnCount);
QSignalSpy modelDataChangedSpy(&model, &QSortFilterProxyModel::dataChanged);
QSignalSpy proxyDataChangedSpy(&proxy, &FilterProxyModel::dataChanged);
QVERIFY(modelDataChangedSpy.isValid());
QVERIFY(proxyDataChangedSpy.isValid());
modelDataChangedSpy.clear();
proxyDataChangedSpy.clear();
model.setData(model.index(Row0, Column1), QStringLiteral("new data"), Qt::DisplayRole);
QCOMPARE(modelDataChangedSpy.size(), 1);
QCOMPARE(proxyDataChangedSpy.size(), 0);
modelDataChangedSpy.clear();
proxyDataChangedSpy.clear();
model.setData(model.index(Row0, Column2), QStringLiteral("new data"), Qt::DisplayRole);
QCOMPARE(modelDataChangedSpy.size(), 1);
QCOMPARE(proxyDataChangedSpy.size(), 1);
modelDataChangedSpy.clear();
proxyDataChangedSpy.clear();
model.setData(model.index(Row0, Column3), QStringLiteral("new data"), Qt::DisplayRole);
QCOMPARE(modelDataChangedSpy.size(), 1);
QCOMPARE(proxyDataChangedSpy.size(), 0);
modelDataChangedSpy.clear();
proxyDataChangedSpy.clear();
model.setData(model.index(Row0, Column4), QStringLiteral("new data"), Qt::DisplayRole);
QCOMPARE(modelDataChangedSpy.size(), 1);
QCOMPARE(proxyDataChangedSpy.size(), 1);
modelDataChangedSpy.clear();
proxyDataChangedSpy.clear();
model.setData(model.index(Row0, Column5), QStringLiteral("new data"), Qt::DisplayRole);
QCOMPARE(modelDataChangedSpy.size(), 1);
QCOMPARE(proxyDataChangedSpy.size(), 0);
}
void tst_QSortFilterProxyModel::changeSourceDataProxyFilterMultipleColumns()
{
class FilterProxyModel : public QSortFilterProxyModel
{
public:
bool filterAcceptsColumn(int source_column, const QModelIndex &source_parent) const override {
Q_UNUSED(source_parent);
switch (source_column) {
case 2:
case 4:
return true;
default:
return false;
}
}
};
class MyTableModel : public QAbstractTableModel
{
public:
explicit MyTableModel() = default;
int rowCount(const QModelIndex &parent = QModelIndex()) const override {
Q_UNUSED(parent)
return 10;
}
int columnCount(const QModelIndex &parent = QModelIndex()) const override {
Q_UNUSED(parent)
return 10;
}
QVariant data(const QModelIndex &index, int role = Qt::DisplayRole) const override {
Q_UNUSED(index)
Q_UNUSED(role)
return QString("testData");
}
void testDataChanged(const int topLeftRow, const int topLeftColumn, const int bottomRightRow, const int bottomRightColumn) {
QModelIndex topLeft = index(topLeftRow, topLeftColumn);
QModelIndex bottomRight = index(bottomRightRow, bottomRightColumn);
QVERIFY(topLeft.isValid());
QVERIFY(bottomRight.isValid());
emit dataChanged(topLeft, bottomRight);
}
};
MyTableModel baseModel;
FilterProxyModel proxyModel;
proxyModel.setSourceModel(&baseModel);
QSignalSpy baseModelDataChangedSpy(&baseModel, &MyTableModel::dataChanged);
QSignalSpy proxyModelDataChangedSpy(&proxyModel, &FilterProxyModel::dataChanged);
connect(&proxyModel, &FilterProxyModel::dataChanged, [=](const QModelIndex &topLeft, const QModelIndex &bottomRight) {
QVERIFY(topLeft.isValid());
QVERIFY(bottomRight.isValid());
//make sure every element is valid
int topLeftRow = topLeft.row();
int topLeftColumn = topLeft.column();
int bottomRightRow = bottomRight.row();
int bottomRightColumn = bottomRight.column();
for (int row = topLeftRow; row <= bottomRightRow; ++row) {
for (int column = topLeftColumn; column <= bottomRightColumn; ++column) {
QModelIndex index = topLeft.model()->index(row, column);
QVERIFY(index.isValid());
}
}
});
QVERIFY(baseModelDataChangedSpy.isValid());
QVERIFY(proxyModelDataChangedSpy.isValid());
baseModelDataChangedSpy.clear();
proxyModelDataChangedSpy.clear();
baseModel.testDataChanged(0, 0, 1, 1);
QCOMPARE(baseModelDataChangedSpy.size(), 1);
QCOMPARE(proxyModelDataChangedSpy.size(), 0);
baseModelDataChangedSpy.clear();
proxyModelDataChangedSpy.clear();
baseModel.testDataChanged(0, 0, 1, 2);
QCOMPARE(baseModelDataChangedSpy.size(), 1);
QCOMPARE(proxyModelDataChangedSpy.size(), 1);
baseModelDataChangedSpy.clear();
proxyModelDataChangedSpy.clear();
baseModel.testDataChanged(0, 3, 1, 3);
QCOMPARE(baseModelDataChangedSpy.size(), 1);
QCOMPARE(proxyModelDataChangedSpy.size(), 0);
baseModelDataChangedSpy.clear();
proxyModelDataChangedSpy.clear();
baseModel.testDataChanged(0, 3, 1, 5);
QCOMPARE(baseModelDataChangedSpy.size(), 1);
QCOMPARE(proxyModelDataChangedSpy.size(), 1);
baseModelDataChangedSpy.clear();
proxyModelDataChangedSpy.clear();
baseModel.testDataChanged(0, 0, 1, 5);
QCOMPARE(baseModelDataChangedSpy.size(), 1);
QCOMPARE(proxyModelDataChangedSpy.size(), 1);
}
void tst_QSortFilterProxyModel::sortFilterRole()
{
QStandardItemModel model;

2
tests/auto/corelib/itemmodels/qsortfilterproxymodel_common/tst_qsortfilterproxymodel.h
View File

@ -91,6 +91,8 @@ private slots:
void changeSourceDataKeepsStableSorting_qtbug1548();
void changeSourceDataForwardsRoles_qtbug35440();
void changeSourceDataProxySendDataChanged_qtbug87781();
void changeSourceDataProxyFilterSingleColumn();
void changeSourceDataProxyFilterMultipleColumns();
void resortingDoesNotBreakTreeModels();
void dynamicFilterWithoutSort();
void sortFilterRole();