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qt6windows7/tests/auto/widgets/itemviews/qlistwidget/tst_qlistwidget.cpp
kleuter 85d238dfda qt 6.5.1 original
2023-10-29 23:33:08 +01:00

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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
#include <QCompleter>
#include <QHBoxLayout>
#include <QLineEdit>
#include <QListWidget>
#include <QSignalSpy>
#include <QStyledItemDelegate>
#include <QTest>
#include <QLabel>
#include <private/qlistwidget_p.h>
#include <QtWidgets/private/qapplication_p.h>
using IntList = QList<int>;
class tst_QListWidget : public QObject
{
Q_OBJECT
public:
tst_QListWidget() = default;
enum ModelChanged {
RowsAboutToBeInserted,
RowsInserted,
RowsAboutToBeRemoved,
RowsRemoved,
ColumnsAboutToBeInserted,
ColumnsInserted,
ColumnsAboutToBeRemoved,
ColumnsRemoved
};
private slots:
void initTestCase();
void cleanupTestCase();
void init();
void addItem();
void addItem2();
void addItems();
void openPersistentEditor();
void closePersistentEditor();
void count();
void currentItem();
void setCurrentItem_data();
void setCurrentItem();
void currentRow();
void setCurrentRow_data();
void setCurrentRow();
void editItem_data();
void editItem();
void findItems();
void insertItem_data();
void insertItem();
void insertItems_data();
void insertItems();
void moveItemsPriv_data();
void moveItemsPriv();
void itemAssignment();
void item_data();
void item();
void takeItem_data();
void takeItem();
void setItemHidden();
void selectedItems_data();
void selectedItems();
void removeItems_data();
void removeItems();
void itemStreaming_data();
void itemStreaming();
void sortItems_data();
void sortItems();
void sortHiddenItems();
void sortHiddenItems_data();
void closeEditor();
void setData_data();
void setData();
void insertItemsWithSorting_data();
void insertItemsWithSorting();
void changeDataWithSorting_data();
void changeDataWithSorting();
void itemData();
void itemWidget();
#ifndef Q_OS_MAC
void fastScroll();
#endif
void insertUnchanged();
void setSortingEnabled();
void task199503_crashWhenCleared();
void task217070_scrollbarsAdjusted();
void task258949_keypressHangup();
void QTBUG8086_currentItemChangedOnClick();
void QTBUG14363_completerWithAnyKeyPressedEditTriggers();
void mimeData();
void QTBUG50891_ensureSelectionModelSignalConnectionsAreSet();
void createPersistentOnLayoutAboutToBeChanged();
void createPersistentOnLayoutAboutToBeChangedAutoSort();
#if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
void clearItemData();
#endif
void moveRows_data();
void moveRows();
void moveRowsInvalid_data();
void moveRowsInvalid();
void noopDragDrop();
protected slots:
void rowsAboutToBeInserted(const QModelIndex &parent, int first, int last)
{ modelChanged(RowsAboutToBeInserted, parent, first, last); }
void rowsInserted(const QModelIndex &parent, int first, int last)
{ modelChanged(RowsInserted, parent, first, last); }
void rowsAboutToBeRemoved(const QModelIndex &parent, int first, int last)
{ modelChanged(RowsAboutToBeRemoved, parent, first, last); }
void rowsRemoved(const QModelIndex &parent, int first, int last)
{ modelChanged(RowsRemoved, parent, first, last); }
void columnsAboutToBeInserted(const QModelIndex &parent, int first, int last)
{ modelChanged(ColumnsAboutToBeInserted, parent, first, last); }
void columnsInserted(const QModelIndex &parent, int first, int last)
{ modelChanged(ColumnsInserted, parent, first, last); }
void columnsAboutToBeRemoved(const QModelIndex &parent, int first, int last)
{ modelChanged(ColumnsAboutToBeRemoved, parent, first, last); }
void columnsRemoved(const QModelIndex &parent, int first, int last)
{ modelChanged(ColumnsRemoved, parent, first, last); }
void modelChanged(ModelChanged change, const QModelIndex &parent, int first, int last)
{
rcParent[change] = parent;
rcFirst[change] = first;
rcLast[change] = last;
}
private:
QListWidget *testWidget = nullptr;
QList<QModelIndex> rcParent { 8 };
QList<int> rcFirst = QList<int>(8, 0);
QList<int> rcLast = QList<int>(8, 0);
void populate();
void checkDefaultValues();
};
void tst_QListWidget::moveRowsInvalid_data()
{
QTest::addColumn<QListWidget*>("baseWidget");
QTest::addColumn<QModelIndex>("startParent");
QTest::addColumn<int>("startRow");
QTest::addColumn<int>("count");
QTest::addColumn<QModelIndex>("destinationParent");
QTest::addColumn<int>("destination");
const auto createWidget = []() -> QListWidget* {
QListWidget* result = new QListWidget;
result->addItems({"A", "B", "C", "D", "E", "F"});
return result;
};
constexpr int rowCount = 6;
QTest::addRow("destination_equal_source") << createWidget() << QModelIndex() << 0 << 1 << QModelIndex() << 0;
QTest::addRow("count_equal_0") << createWidget() << QModelIndex() << 0 << 0 << QModelIndex() << 2;
QListWidget* tempWidget = createWidget();
QTest::addRow("move_child") << tempWidget << tempWidget->model()->index(0, 0) << 0 << 1 << QModelIndex() << 2;
tempWidget = createWidget();
QTest::addRow("move_to_child") << tempWidget << QModelIndex() << 0 << 1 << tempWidget->model()->index(0, 0) << 2;
QTest::addRow("negative_count") << createWidget() << QModelIndex() << 0 << -1 << QModelIndex() << 2;
QTest::addRow("negative_source_row") << createWidget() << QModelIndex() << -1 << 1 << QModelIndex() << 2;
QTest::addRow("negative_destination_row") << createWidget() << QModelIndex() << 0 << 1 << QModelIndex() << -1;
QTest::addRow("source_row_equal_rowCount") << createWidget() << QModelIndex() << rowCount << 1 << QModelIndex() << 1;
QTest::addRow("source_row_equal_destination_row") << createWidget() << QModelIndex() << 2 << 1 << QModelIndex() << 2;
QTest::addRow("source_row_equal_destination_row_plus1") << createWidget() << QModelIndex() << 2 << 1 << QModelIndex() << 3;
QTest::addRow("destination_row_greater_rowCount") << createWidget() << QModelIndex() << 0 << 1 << QModelIndex() << rowCount + 1;
QTest::addRow("move_row_within_source_range") << createWidget() << QModelIndex() << 0 << 3 << QModelIndex() << 2;
}
void tst_QListWidget::moveRowsInvalid()
{
QFETCH(QListWidget* const, baseWidget);
QFETCH(const QModelIndex, startParent);
QFETCH(const int, startRow);
QFETCH(const int, count);
QFETCH(const QModelIndex, destinationParent);
QFETCH(const int, destination);
QAbstractItemModel *baseModel = baseWidget->model();
QSignalSpy rowMovedSpy(baseModel, &QAbstractItemModel::rowsMoved);
QSignalSpy rowAboutMovedSpy(baseModel, &QAbstractItemModel::rowsAboutToBeMoved);
QVERIFY(rowMovedSpy.isValid());
QVERIFY(rowAboutMovedSpy.isValid());
QVERIFY(!baseModel->moveRows(startParent, startRow, count, destinationParent, destination));
QCOMPARE(rowMovedSpy.size(), 0);
QCOMPARE(rowAboutMovedSpy.size(), 0);
delete baseWidget;
}
void tst_QListWidget::moveRows_data()
{
QTest::addColumn<int>("startRow");
QTest::addColumn<int>("count");
QTest::addColumn<int>("destination");
QTest::addColumn<QStringList>("expected");
QTest::newRow("1_Item_from_top_to_middle") << 0 << 1 << 3 << QStringList{"B", "C", "A", "D", "E", "F"};
QTest::newRow("1_Item_from_top_to_bottom") << 0 << 1 << 6 << QStringList{"B", "C", "D", "E", "F", "A"};
QTest::newRow("1_Item_from_middle_to_top") << 2 << 1 << 0 << QStringList{"C", "A", "B", "D", "E", "F"};
QTest::newRow("1_Item_from_bottom_to_middle") << 5 << 1 << 2 << QStringList{"A", "B", "F", "C", "D", "E"};
QTest::newRow("1_Item_from_bottom to_top") << 5 << 1 << 0 << QStringList{"F", "A", "B", "C", "D", "E"};
QTest::newRow("1_Item_from_middle_to_bottom") << 2 << 1 << 6 << QStringList{"A", "B", "D", "E", "F", "C"};
QTest::newRow("1_Item_from_middle_to_middle_before") << 2 << 1 << 1 << QStringList{"A", "C", "B", "D", "E", "F"};
QTest::newRow("1_Item_from_middle_to_middle_after") << 2 << 1 << 4 << QStringList{"A", "B", "D", "C", "E", "F"};
QTest::newRow("2_Items_from_top_to_middle") << 0 << 2 << 3 << QStringList{"C", "A", "B", "D", "E", "F"};
QTest::newRow("2_Items_from_top_to_bottom") << 0 << 2 << 6 << QStringList{"C", "D", "E", "F", "A", "B"};
QTest::newRow("2_Items_from_middle_to_top") << 2 << 2 << 0 << QStringList{"C", "D", "A", "B", "E", "F"};
QTest::newRow("2_Items_from_bottom_to_middle") << 4 << 2 << 2 << QStringList{"A", "B", "E", "F", "C", "D"};
QTest::newRow("2_Items_from_bottom_to_top") << 4 << 2 << 0 << QStringList{"E", "F", "A", "B", "C", "D"};
QTest::newRow("2_Items_from_middle_to_bottom") << 2 << 2 << 6 << QStringList{"A", "B", "E", "F", "C", "D"};
QTest::newRow("2_Items_from_middle_to_middle_before") << 3 << 2 << 1 << QStringList{"A", "D", "E", "B", "C", "F"};
QTest::newRow("2_Items_from_middle_to_middle_after") << 1 << 2 << 5 << QStringList{"A", "D", "E", "B", "C", "F"};
}
void tst_QListWidget::moveRows()
{
QFETCH(const int, startRow);
QFETCH(const int, count);
QFETCH(const int, destination);
QFETCH(const QStringList, expected);
QListWidget baseWidget;
baseWidget.addItems(QStringList{"A", "B", "C", "D", "E", "F"});
QAbstractItemModel *baseModel = baseWidget.model();
QSignalSpy rowMovedSpy(baseModel, &QAbstractItemModel::rowsMoved);
QSignalSpy rowAboutMovedSpy(baseModel, &QAbstractItemModel::rowsAboutToBeMoved);
QVERIFY(baseModel->moveRows(QModelIndex(), startRow, count, QModelIndex(), destination));
QCOMPARE(baseModel->rowCount(), expected.size());
for (int i = 0; i < expected.size(); ++i)
QCOMPARE(baseModel->index(i, 0).data().toString(), expected.at(i));
QCOMPARE(rowMovedSpy.size(), 1);
QCOMPARE(rowAboutMovedSpy.size(), 1);
for (const QList<QVariant> &signalArgs : {rowMovedSpy.first(), rowAboutMovedSpy.first()}){
QVERIFY(!signalArgs.at(0).value<QModelIndex>().isValid());
QCOMPARE(signalArgs.at(1).toInt(), startRow);
QCOMPARE(signalArgs.at(2).toInt(), startRow + count - 1);
QVERIFY(!signalArgs.at(3).value<QModelIndex>().isValid());
QCOMPARE(signalArgs.at(4).toInt(), destination);
}
}
void tst_QListWidget::initTestCase()
{
qRegisterMetaType<QListWidgetItem*>("QListWidgetItem*");
qRegisterMetaType<QList<QPersistentModelIndex>>("QList<QPersistentModelIndex>");
qRegisterMetaType<QAbstractItemModel::LayoutChangeHint>("QAbstractItemModel::LayoutChangeHint");
testWidget = new QListWidget;
testWidget->show();
connect(testWidget->model(), &QAbstractItemModel::rowsAboutToBeInserted,
this, &tst_QListWidget::rowsAboutToBeInserted);
connect(testWidget->model(), &QAbstractItemModel::rowsInserted,
this, &tst_QListWidget::rowsInserted);
connect(testWidget->model(), &QAbstractItemModel::rowsAboutToBeRemoved,
this, &tst_QListWidget::rowsAboutToBeRemoved);
connect(testWidget->model(), &QAbstractItemModel::rowsRemoved,
this, &tst_QListWidget::rowsRemoved);
connect(testWidget->model(), &QAbstractItemModel::columnsAboutToBeInserted,
this, &tst_QListWidget::columnsAboutToBeInserted);
connect(testWidget->model(), &QAbstractItemModel::columnsInserted,
this, &tst_QListWidget::columnsInserted);
connect(testWidget->model(), &QAbstractItemModel::columnsAboutToBeRemoved,
this, &tst_QListWidget::columnsAboutToBeRemoved);
connect(testWidget->model(), &QAbstractItemModel::columnsRemoved,
this, &tst_QListWidget::columnsRemoved);
checkDefaultValues();
}
void tst_QListWidget::cleanupTestCase()
{
delete testWidget;
}
void tst_QListWidget::init()
{
testWidget->clear();
QCoreApplication::sendPostedEvents(nullptr, QEvent::DeferredDelete);
}
void tst_QListWidget::checkDefaultValues()
{
QCOMPARE(testWidget->currentItem(), nullptr);
QCOMPARE(testWidget->currentRow(), -1);
QCOMPARE(testWidget->count(), 0);
}
void tst_QListWidget::populate()
{
addItem();
addItem2();
addItems();
setItemHidden();
testWidget->setCurrentIndex(testWidget->model()->index(0, 0));
// setCurrentItem();
// setCurrentRow();
}
void tst_QListWidget::addItem()
{
int count = testWidget->count();
const QString label = QString::number(count);
testWidget->addItem(label);
QCOMPARE(testWidget->count(), ++count);
QCOMPARE(testWidget->item(testWidget->count() - 1)->text(), label);
}
void tst_QListWidget::addItem2()
{
int count = testWidget->count();
// Boundary Checking
testWidget->addItem(nullptr);
QCOMPARE(testWidget->count(), count);
QListWidgetItem *item = new QListWidgetItem(QString::number(count));
item->setFlags(item->flags() | Qt::ItemIsEditable);
testWidget->addItem(item);
QCOMPARE(testWidget->count(), ++count);
QCOMPARE(testWidget->item(testWidget->count()-1), item);
QCOMPARE(item->isHidden(), false);
}
void tst_QListWidget::addItems()
{
int count = testWidget->count();
// Boundary Checking
testWidget->addItems(QStringList());
QCOMPARE(testWidget->count(), count);
QString label = QString::number(count);
const QStringList stringList{QString::number(testWidget->count() + 1),
QString::number(testWidget->count() + 2),
QString::number(testWidget->count() + 3),
label};
testWidget->addItems(stringList);
QCOMPARE(testWidget->count(), count + stringList.size());
QCOMPARE(testWidget->item(testWidget->count()-1)->text(), label);
}
void tst_QListWidget::openPersistentEditor()
{
// Boundary checking
testWidget->openPersistentEditor(nullptr);
QListWidgetItem *item = new QListWidgetItem(QString::number(testWidget->count()));
testWidget->openPersistentEditor(item);
int childCount = testWidget->viewport()->children().size();
testWidget->addItem(item);
testWidget->openPersistentEditor(item);
QCOMPARE(childCount + 1, testWidget->viewport()->children().size());
}
void tst_QListWidget::closePersistentEditor()
{
// Boundary checking
int childCount = testWidget->viewport()->children().size();
testWidget->closePersistentEditor(nullptr);
QListWidgetItem *item = new QListWidgetItem(QString::number(testWidget->count()));
testWidget->closePersistentEditor(item);
QCOMPARE(childCount, testWidget->viewport()->children().size());
// Create something
testWidget->addItem(item);
testWidget->openPersistentEditor(item);
// actual test
childCount = testWidget->viewport()->children().size();
testWidget->closePersistentEditor(item);
QCoreApplication::sendPostedEvents(nullptr, QEvent::DeferredDelete);
QCOMPARE(testWidget->viewport()->children().size(), childCount - 1);
}
void tst_QListWidget::setItemHidden()
{
auto countHidden = [](QListWidget *testWidget)
{
int totalHidden = 0;
for (int i = 0; i < testWidget->model()->rowCount(); ++i) {
if (testWidget->item(i)->isHidden())
totalHidden++;
}
return totalHidden;
};
const int totalHidden = countHidden(testWidget);
QListWidgetItem *item = new QListWidgetItem(QString::number(testWidget->count()));
testWidget->addItem(item);
// Check that nothing else changed
QCOMPARE(countHidden(testWidget), totalHidden);
item->setHidden(true);
QCOMPARE(item->isHidden(), true);
// Check that nothing else changed
QCOMPARE(countHidden(testWidget), totalHidden + 1);
item->setHidden(false);
QCOMPARE(item->isHidden(), false);
// Check that nothing else changed
QCOMPARE(countHidden(testWidget), totalHidden);
item->setHidden(true);
}
void tst_QListWidget::setCurrentItem_data()
{
QTest::addColumn<int>("fill");
QTest::newRow("HasItems: 0") << 0;
QTest::newRow("HasItems: 1") << 1;
QTest::newRow("HasItems: 2") << 2;
QTest::newRow("HasItems: 3") << 3;
}
void tst_QListWidget::setCurrentItem()
{
QFETCH(int, fill);
for (int i = 0; i < fill; ++i)
testWidget->addItem(QString::number(i));
// Boundary checking
testWidget->setCurrentItem(nullptr);
QVERIFY(!testWidget->currentItem());
QListWidgetItem item;
testWidget->setCurrentItem(&item);
QVERIFY(!testWidget->currentItem());
// Make sure that currentItem changes to what is passed into setCurrentItem
for (int i = 0; i < testWidget->count(); ++i) {
testWidget->setCurrentItem(testWidget->item(i));
for (int j = 0; j < testWidget->count(); ++j) {
testWidget->setCurrentItem(testWidget->item(j));
QCOMPARE(testWidget->item(j), testWidget->currentItem());
}
}
}
void tst_QListWidget::setCurrentRow_data()
{
QTest::addColumn<int>("fill");
QTest::newRow("HasItems: 0") << 0;
QTest::newRow("HasItems: 1") << 1;
QTest::newRow("HasItems: 2") << 2;
QTest::newRow("HasItems: 3") << 3;
}
void tst_QListWidget::setCurrentRow()
{
QFETCH(int, fill);
for (int i = 0; i < fill; ++i)
testWidget->addItem(QString::number(i));
// Boundary checking
testWidget->setCurrentRow(-1);
QCOMPARE(-1, testWidget->currentRow());
testWidget->setCurrentRow(testWidget->count());
QCOMPARE(-1, testWidget->currentRow());
// Make sure that currentRow changes to what is passed into setCurrentRow
for (int i = 0; i < testWidget->count(); ++i) {
testWidget->setCurrentRow(i);
for (int j = 0; j < testWidget->count(); ++j) {
testWidget->setCurrentRow(j);
QCOMPARE(j, testWidget->currentRow());
}
}
}
void tst_QListWidget::count()
{
populate();
// actual test
QCOMPARE(testWidget->model()->rowCount(), testWidget->count());
}
void tst_QListWidget::currentItem()
{
populate();
// actual test
QModelIndex currentIndex = testWidget->selectionModel()->currentIndex();
if (currentIndex.isValid())
QCOMPARE(testWidget->currentItem(), testWidget->item(currentIndex.row()));
else
QCOMPARE(testWidget->currentItem(), nullptr);
}
void tst_QListWidget::currentRow()
{
populate();
// actual test
QModelIndex currentIndex = testWidget->selectionModel()->currentIndex();
if (currentIndex.isValid())
QCOMPARE(testWidget->currentRow(), currentIndex.row());
else
QCOMPARE(testWidget->currentRow(), -1);
}
void tst_QListWidget::editItem_data()
{
QTest::addColumn<bool>("editable");
QTest::newRow("editable") << true;
QTest::newRow("not editable") << false;
}
void tst_QListWidget::editItem()
{
// Boundary checking
testWidget->editItem(nullptr);
QListWidgetItem *item = new QListWidgetItem(QString::number(testWidget->count()));
testWidget->editItem(item);
QFETCH(bool, editable);
if (editable)
item->setFlags(item->flags() | Qt::ItemIsEditable);
testWidget->addItem(item);
int childCount = testWidget->viewport()->children().size();
QWidget *existsAlready = testWidget->indexWidget(testWidget->model()->index(testWidget->row(item), 0));
testWidget->editItem(item);
Qt::ItemFlags flags = item->flags();
// There doesn't seem to be a way to detect if the item has already been edited...
if (!existsAlready && flags & Qt::ItemIsEditable && flags & Qt::ItemIsEnabled) {
QList<QObject *> children = testWidget->viewport()->children();
QVERIFY(children.size() > childCount);
bool found = false;
for (int i = 0; i < children.size(); ++i) {
if (children.at(i)->inherits("QExpandingLineEdit"))
found = true;
}
QVERIFY(found);
} else {
QCOMPARE(testWidget->viewport()->children().size(), childCount);
}
}
void tst_QListWidget::findItems()
{
// This really just tests that the items that are returned are converted from index's to items correctly.
// Boundary checking
QCOMPARE(testWidget->findItems("GirlsCanWearJeansAndCutTheirHairShort", Qt::MatchExactly).size(), 0);
populate();
for (int i = 0; i < testWidget->count(); ++i)
QCOMPARE(testWidget->findItems(testWidget->item(i)->text(), Qt::MatchExactly).size(), 1);
}
void tst_QListWidget::insertItem_data()
{
QTest::addColumn<QStringList>("initialItems");
QTest::addColumn<int>("insertIndex");
QTest::addColumn<QString>("itemLabel");
QTest::addColumn<int>("expectedIndex");
const QStringList initialItems{"foo", "bar"};
QTest::newRow("Insert less then 0") << initialItems << -1 << "inserted" << 0;
QTest::newRow("Insert at 0") << initialItems << 0 << "inserted" << 0;
QTest::newRow("Insert beyond count") << initialItems << initialItems.size()+1 << "inserted" << initialItems.size();
QTest::newRow("Insert at count") << initialItems << initialItems.size() << "inserted" << initialItems.size();
QTest::newRow("Insert in the middle") << initialItems << 1 << "inserted" << 1;
}
void tst_QListWidget::insertItem()
{
QFETCH(QStringList, initialItems);
QFETCH(int, insertIndex);
QFETCH(QString, itemLabel);
QFETCH(int, expectedIndex);
testWidget->insertItems(0, initialItems);
QCOMPARE(testWidget->count(), initialItems.size());
testWidget->insertItem(insertIndex, itemLabel);
QCOMPARE(rcFirst[RowsAboutToBeInserted], expectedIndex);
QCOMPARE(rcLast[RowsAboutToBeInserted], expectedIndex);
QCOMPARE(rcFirst[RowsInserted], expectedIndex);
QCOMPARE(rcLast[RowsInserted], expectedIndex);
QCOMPARE(testWidget->count(), initialItems.size() + 1);
QCOMPARE(testWidget->item(expectedIndex)->text(), itemLabel);
}
void tst_QListWidget::insertItems_data()
{
QTest::addColumn<int>("rowCount");
QTest::addColumn<int>("insertType");
QTest::newRow("Insert 1 item using constructor") << 1 << 0;
QTest::newRow("Insert 10 items using constructor") << 10 << 0;
QTest::newRow("Insert 100 items using constructor") << 100 << 0;
QTest::newRow("Insert 1 item with insertItem") << 1 << 1;
QTest::newRow("Insert 10 items with insertItem") << 10 << 1;
QTest::newRow("Insert 100 items with insertItem") << 100 << 1;
QTest::newRow("Insert/Create 1 item using insertItem") << 1 << 2;
QTest::newRow("Insert/Create 10 items using insertItem") << 10 << 2;
QTest::newRow("Insert/Create 100 items using insertItem") << 100 << 2;
QTest::newRow("Insert 0 items with insertItems") << 0 << 3;
QTest::newRow("Insert 1 item with insertItems") << 1 << 3;
QTest::newRow("Insert 10 items with insertItems") << 10 << 3;
QTest::newRow("Insert 100 items with insertItems") << 100 << 3;
}
void tst_QListWidget::insertItems()
{
QFETCH(int, rowCount);
QFETCH(int, insertType);
QSignalSpy itemChangedSpy(testWidget, &QListWidget::itemChanged);
QSignalSpy dataChangedSpy(testWidget->model(), &QAbstractItemModel::dataChanged);
if (insertType == 3) {
QStringList strings;
for (int i = 0; i < rowCount; ++i)
strings << QString::number(i);
testWidget->insertItems(0, strings);
} else {
for (int r = 0; r < rowCount; ++r) {
if (insertType == 0) {
// insert with QListWidgetItem constructor
new QListWidgetItem(QString::number(r), testWidget);
} else if (insertType == 1) {
// insert actual item
testWidget->insertItem(r, new QListWidgetItem(QString::number(r)));
} else if (insertType == 2) {
// insert/creating with string
testWidget->insertItem(r, QString::number(r));
} else if (insertType == 3) {
QStringList strings;
for (int i = 0; i < rowCount; ++i)
strings << QString::number(i);
testWidget->insertItems(0, strings);
break;
} else {
QVERIFY(0);
}
}
}
// compare the results
QCOMPARE(testWidget->count(), rowCount);
// check if the text
for (int r = 0; r < rowCount; ++r)
QCOMPARE(testWidget->item(r)->text(), QString::number(r));
// make sure all items have view set correctly
for (int i = 0; i < testWidget->count(); ++i)
QCOMPARE(testWidget->item(i)->listWidget(), testWidget);
QCOMPARE(itemChangedSpy.size(), 0);
QCOMPARE(dataChangedSpy.size(), 0);
}
void tst_QListWidget::itemAssignment()
{
QListWidgetItem itemInWidget("inWidget", testWidget);
itemInWidget.setFlags(itemInWidget.flags() | Qt::ItemIsUserTristate);
QListWidgetItem itemOutsideWidget("outsideWidget");
QVERIFY(itemInWidget.listWidget());
QCOMPARE(itemInWidget.text(), QString("inWidget"));
QVERIFY(itemInWidget.flags() & Qt::ItemIsUserTristate);
QVERIFY(!itemOutsideWidget.listWidget());
QCOMPARE(itemOutsideWidget.text(), QString("outsideWidget"));
QVERIFY(!(itemOutsideWidget.flags() & Qt::ItemIsUserTristate));
itemOutsideWidget = itemInWidget;
QVERIFY(!itemOutsideWidget.listWidget());
QCOMPARE(itemOutsideWidget.text(), QString("inWidget"));
QVERIFY(itemOutsideWidget.flags() & Qt::ItemIsUserTristate);
}
void tst_QListWidget::item_data()
{
QTest::addColumn<int>("row");
QTest::addColumn<bool>("outOfBounds");
QTest::newRow("First item, row: 0") << 0 << false;
QTest::newRow("Middle item, row: 1") << 1 << false;
QTest::newRow("Last item, row: 2") << 2 << false;
QTest::newRow("Out of bounds, row: -1") << -1 << true;
QTest::newRow("Out of bounds, row: 3") << 3 << true;
}
void tst_QListWidget::item()
{
QFETCH(int, row);
QFETCH(bool, outOfBounds);
(new QListWidgetItem(testWidget))->setText("item0");
(new QListWidgetItem(testWidget))->setText("item1");
(new QListWidgetItem(testWidget))->setText("item2");
QCOMPARE(testWidget->count(), 3);
QListWidgetItem *item = testWidget->item(row);
if (outOfBounds) {
QCOMPARE(item, nullptr);
QCOMPARE(testWidget->count(), 3);
} else {
QCOMPARE(item->text(), QStringLiteral("item") + QString::number(row));
QCOMPARE(testWidget->count(), 3);
}
}
void tst_QListWidget::takeItem_data()
{
QTest::addColumn<int>("row");
QTest::addColumn<bool>("outOfBounds");
QTest::newRow("First item, row: 0") << 0 << false;
QTest::newRow("Middle item, row: 1") << 1 << false;
QTest::newRow("Last item, row: 2") << 2 << false;
QTest::newRow("Out of bounds, row: -1") << -1 << true;
QTest::newRow("Out of bounds, row: 3") << 3 << true;
}
void tst_QListWidget::takeItem()
{
QFETCH(int, row);
QFETCH(bool, outOfBounds);
(new QListWidgetItem(testWidget))->setText("item0");
(new QListWidgetItem(testWidget))->setText("item1");
(new QListWidgetItem(testWidget))->setText("item2");
QCOMPARE(testWidget->count(), 3);
QListWidgetItem *item = testWidget->takeItem(row);
if (outOfBounds) {
QCOMPARE(item, nullptr);
QCOMPARE(testWidget->count(), 3);
} else {
QCOMPARE(item->text(), QStringLiteral("item") + QString::number(row));
QCOMPARE(testWidget->count(), 2);
}
delete item;
}
void tst_QListWidget::selectedItems_data()
{
QTest::addColumn<int>("itemCount");
QTest::addColumn<IntList>("hiddenRows");
QTest::addColumn<IntList>("selectedRows");
QTest::addColumn<IntList>("expectedRows");
QTest::newRow("none hidden, none selected")
<< 3
<< IntList()
<< IntList()
<< IntList();
QTest::newRow("none hidden, all selected")
<< 3
<< IntList()
<< (IntList() << 0 << 1 << 2)
<< (IntList() << 0 << 1 << 2);
QTest::newRow("first hidden, all selected")
<< 3
<< (IntList() << 0)
<< (IntList() << 0 << 1 << 2)
<< (IntList() << 0 << 1 << 2);
QTest::newRow("last hidden, all selected")
<< 3
<< (IntList() << 2)
<< (IntList() << 0 << 1 << 2)
<< (IntList() << 0 << 1 << 2);
QTest::newRow("middle hidden, all selected")
<< 3
<< (IntList() << 1)
<< (IntList() << 0 << 1 << 2)
<< (IntList() << 0 << 1 << 2);
QTest::newRow("all hidden, all selected")
<< 3
<< (IntList() << 0 << 1 << 2)
<< (IntList() << 0 << 1 << 2)
<< (IntList() << 0 << 1 << 2);
}
void tst_QListWidget::selectedItems()
{
QFETCH(int, itemCount);
QFETCH(const IntList, hiddenRows);
QFETCH(const IntList, selectedRows);
QFETCH(const IntList, expectedRows);
QCOMPARE(testWidget->count(), 0);
//insert items
for (int i = 0; i < itemCount; ++i)
new QListWidgetItem(QStringLiteral("Item") + QString::number(i), testWidget);
//test the selection
testWidget->setSelectionMode(QListWidget::SingleSelection);
for (int i = 0; i < itemCount; ++i) {
QListWidgetItem *item = testWidget->item(i);
item->setSelected(true);
QVERIFY(item->isSelected());
QCOMPARE(testWidget->selectedItems().size(), 1);
}
//let's clear the selection
testWidget->clearSelection();
//... and set the selection mode to allow more than 1 item to be selected
testWidget->setSelectionMode(QAbstractItemView::MultiSelection);
//verify items are inserted
QCOMPARE(testWidget->count(), itemCount);
// hide items
for (int row : hiddenRows)
testWidget->item(row)->setHidden(true);
// select items
for (int row : selectedRows)
testWidget->item(row)->setSelected(true);
// check that the correct number of items and the expected items are there
QList<QListWidgetItem *> selectedItems = testWidget->selectedItems();
QCOMPARE(selectedItems.size(), expectedRows.size());
for (int row : expectedRows)
QVERIFY(selectedItems.contains(testWidget->item(row)));
//check that isSelected agrees with selectedItems
for (int i = 0; i < itemCount; ++i) {
QListWidgetItem *item = testWidget->item(i);
if (item->isSelected())
QVERIFY(selectedItems.contains(item));
}
}
void tst_QListWidget::removeItems_data()
{
QTest::addColumn<int>("rowCount");
QTest::addColumn<int>("removeRows");
QTest::addColumn<int>("row");
QTest::addColumn<int>("expectedRowCount");
QTest::newRow("Empty") << 0 << 1 << 0 << 0;
QTest::newRow("1:1") << 1 << 1 << 0 << 0;
QTest::newRow("3:1") << 3 << 1 << 0 << 2;
QTest::newRow("3:2") << 3 << 2 << 0 << 1;
QTest::newRow("100:10") << 100 << 10 << 0 << 90;
}
void tst_QListWidget::removeItems()
{
QFETCH(int, rowCount);
QFETCH(int, removeRows);
QFETCH(int, row);
QFETCH(int, expectedRowCount);
//insert items
for (int r = 0; r < rowCount; ++r)
new QListWidgetItem(QString::number(r), testWidget);
// remove and compare the results
for (int r = 0; r < removeRows; ++r)
delete testWidget->item(row);
QCOMPARE(testWidget->count(), expectedRowCount);
// check if the correct items were removed
for (int r = 0; r < expectedRowCount; ++r)
if (r < row)
QCOMPARE(testWidget->item(r)->text(), QString::number(r));
else
QCOMPARE(testWidget->item(r)->text(), QString::number(r + removeRows));
}
void tst_QListWidget::moveItemsPriv_data()
{
QTest::addColumn<int>("rowCount");
QTest::addColumn<int>("srcRow");
QTest::addColumn<int>("dstRow");
QTest::addColumn<bool>("shouldHaveSignaled");
QTest::newRow("Empty") << 0 << 0 << 0 << false;
QTest::newRow("Overflow src") << 5 << 5 << 2 << false;
QTest::newRow("Underflow src") << 5 << -1 << 2 << false;
QTest::newRow("Overflow dst") << 5 << 2 << 6 << false;
QTest::newRow("Underflow dst") << 5 << 2 << -1 << false;
QTest::newRow("Same place") << 5 << 2 << 2 << false;
QTest::newRow("Up") << 5 << 4 << 2 << true;
QTest::newRow("Down") << 5 << 2 << 4 << true;
QTest::newRow("QTBUG-6532 assert") << 5 << 0 << 1 << false;
QTest::newRow("QTBUG-6565 to the end") << 5 << 3 << 5 << true;
QTest::newRow("Same place 2") << 2 << 0 << 1 << false;
QTest::newRow("swap") << 2 << 0 << 2 << true;
QTest::newRow("swap2") << 4 << 1 << 3 << true;
QTest::newRow("swap3") << 4 << 3 << 2 << true;
QTest::newRow("swap4") << 2 << 1 << 0 << true;
}
void tst_QListWidget::moveItemsPriv()
{
QFETCH(int, rowCount);
QFETCH(int, srcRow);
QFETCH(int, dstRow);
QFETCH(bool, shouldHaveSignaled);
for (int r = 0; r < rowCount; ++r)
new QListWidgetItem(QString::number(r), testWidget);
QListModel *model = qobject_cast<QListModel *>(testWidget->model());
QVERIFY(model);
QSignalSpy beginMoveSpy(model, &QAbstractItemModel::rowsAboutToBeMoved);
QSignalSpy movedSpy(model, &QAbstractItemModel::rowsMoved);
model->move(srcRow, dstRow);
if (shouldHaveSignaled) {
if (srcRow < dstRow)
QCOMPARE(testWidget->item(dstRow - 1)->text(), QString::number(srcRow));
else
QCOMPARE(testWidget->item(dstRow)->text(), QString::number(srcRow));
QCOMPARE(beginMoveSpy.size(), 1);
const QList<QVariant> &beginMoveArgs = beginMoveSpy.takeFirst();
QCOMPARE(beginMoveArgs.at(1).toInt(), srcRow);
QCOMPARE(beginMoveArgs.at(2).toInt(), srcRow);
QCOMPARE(beginMoveArgs.at(4).toInt(), dstRow);
QCOMPARE(movedSpy.size(), 1);
const QList<QVariant> &movedArgs = movedSpy.takeFirst();
QCOMPARE(movedArgs.at(1).toInt(), srcRow);
QCOMPARE(movedArgs.at(2).toInt(), srcRow);
QCOMPARE(movedArgs.at(4).toInt(), dstRow);
} else {
QCOMPARE(beginMoveSpy.size(), 0);
QCOMPARE(movedSpy.size(), 0);
}
}
void tst_QListWidget::itemStreaming_data()
{
QTest::addColumn<QString>("text");
QTest::addColumn<QString>("toolTip");
QTest::newRow("Data") << "item text" << "tool tip text";
}
void tst_QListWidget::itemStreaming()
{
QFETCH(QString, text);
QFETCH(QString, toolTip);
QListWidgetItem item;
QCOMPARE(item.text(), QString());
QCOMPARE(item.toolTip(), QString());
item.setText(text);
item.setToolTip(toolTip);
QCOMPARE(item.text(), text);
QCOMPARE(item.toolTip(), toolTip);
QByteArray buffer;
QDataStream out(&buffer, QIODevice::WriteOnly);
out << item;
QListWidgetItem item2;
QCOMPARE(item2.text(), QString());
QCOMPARE(item2.toolTip(), QString());
QVERIFY(!buffer.isEmpty());
QDataStream in(&buffer, QIODevice::ReadOnly);
in >> item2;
QCOMPARE(item2.text(), text);
QCOMPARE(item2.toolTip(), toolTip);
}
void tst_QListWidget::sortItems_data()
{
QTest::addColumn<Qt::SortOrder>("order");
QTest::addColumn<QVariantList>("initialList");
QTest::addColumn<QVariantList>("expectedList");
QTest::addColumn<IntList>("expectedRows");
QTest::newRow("ascending strings")
<< Qt::AscendingOrder
<< (QVariantList() << QString("c") << QString("d") << QString("a") << QString("b"))
<< (QVariantList() << QString("a") << QString("b") << QString("c") << QString("d"))
<< (IntList() << 2 << 3 << 0 << 1);
QTest::newRow("descending strings")
<< Qt::DescendingOrder
<< (QVariantList() << QString("c") << QString("d") << QString("a") << QString("b"))
<< (QVariantList() << QString("d") << QString("c") << QString("b") << QString("a"))
<< (IntList() << 1 << 0 << 3 << 2);
QTest::newRow("ascending numbers")
<< Qt::AscendingOrder
<< (QVariantList() << 1 << 11 << 2 << 22)
<< (QVariantList() << 1 << 2 << 11 << 22)
<< (IntList() << 0 << 2 << 1 << 3);
QTest::newRow("descending numbers")
<< Qt::DescendingOrder
<< (QVariantList() << 1 << 11 << 2 << 22)
<< (QVariantList() << 22 << 11 << 2 << 1)
<< (IntList() << 3 << 1 << 2 << 0);
}
void tst_QListWidget::sortItems()
{
QFETCH(Qt::SortOrder, order);
QFETCH(const QVariantList, initialList);
QFETCH(const QVariantList, expectedList);
QFETCH(const IntList, expectedRows);
for (const QVariant &data : initialList) {
QListWidgetItem *item = new QListWidgetItem(testWidget);
item->setData(Qt::DisplayRole, data);
}
QAbstractItemModel *model = testWidget->model();
QList<QPersistentModelIndex> persistent;
for (int j = 0; j < model->rowCount(QModelIndex()); ++j)
persistent << model->index(j, 0, QModelIndex());
testWidget->sortItems(order);
QCOMPARE(testWidget->count(), expectedList.size());
for (int i = 0; i < testWidget->count(); ++i)
QCOMPARE(testWidget->item(i)->text(), expectedList.at(i).toString());
for (int k = 0; k < testWidget->count(); ++k)
QCOMPARE(persistent.at(k).row(), expectedRows.at(k));
}
void tst_QListWidget::sortHiddenItems_data()
{
QTest::addColumn<Qt::SortOrder>("order");
QTest::addColumn<QStringList>("initialList");
QTest::addColumn<QStringList>("expectedList");
QTest::addColumn<IntList>("expectedRows");
QTest::addColumn<IntList>("expectedVisibility");
QStringList initial, expected;
IntList rowOrder;
IntList visible;
for (int i = 0; i < 20; ++i) {
initial << QString(QChar(0x41 + i));
expected << QString(QChar(0x54 - i));
rowOrder << 19 - i;
visible << (i % 2);
}
QTest::newRow("descending order, 20 items")
<< Qt::DescendingOrder
<< initial
<< expected
<< rowOrder
<< visible;
QTest::newRow("ascending order")
<< Qt::AscendingOrder
<< (QStringList() << "c" << "d" << "a" << "b")
<< (QStringList() << "a" << "b" << "c" << "d")
<< (IntList() << 2 << 3 << 0 << 1)
<< (IntList() << 1 << 0 << 1 << 0);
QTest::newRow("descending order")
<< Qt::DescendingOrder
<< (QStringList() << "c" << "d" << "a" << "b")
<< (QStringList() << "d" << "c" << "b" << "a")
<< (IntList() << 1 << 0 << 3 << 2)
<< (IntList() << 0 << 1 << 0 << 1);
}
void tst_QListWidget::sortHiddenItems()
{
QFETCH(Qt::SortOrder, order);
QFETCH(QStringList, initialList);
QFETCH(QStringList, expectedList);
QFETCH(IntList, expectedRows);
QFETCH(IntList, expectedVisibility);
// init() won't clear hidden items...
QListWidget *tw = new QListWidget();
tw->addItems(initialList);
QAbstractItemModel *model = tw->model();
QList<QPersistentModelIndex> persistent;
for (int j = 0; j < model->rowCount(QModelIndex()); ++j) {
persistent << model->index(j, 0, QModelIndex());
tw->setRowHidden(j, j & 1); // every odd is hidden
}
tw->setSortingEnabled(true);
tw->sortItems(order);
QCOMPARE(tw->count(), expectedList.size());
for (int i = 0; i < tw->count(); ++i) {
QCOMPARE(tw->item(i)->text(), expectedList.at(i));
QCOMPARE(tw->item(i)->isHidden(), !expectedVisibility.at(i));
}
for (int k = 0; k < tw->count(); ++k)
QCOMPARE(persistent.at(k).row(), expectedRows.at(k));
delete tw;
}
class TestListWidget : public QListWidget
{
Q_OBJECT
public:
using QListWidget::QListWidget;
using QListWidget::state;
using QListWidget::closeEditor;
using QListWidget::mimeData;
using QListWidget::indexFromItem;
bool isEditingState() const {
return QListWidget::state() == QListWidget::EditingState;
}
};
void tst_QListWidget::closeEditor()
{
TestListWidget w;
w.addItems({"a", "b", "c", "d"});
QListWidgetItem *item = w.item(0);
item->setFlags(item->flags() | Qt::ItemIsEditable);
QVERIFY(item);
w.editItem(item);
QVERIFY(w.isEditingState());
w.reset();
QVERIFY(!w.isEditingState());
}
void tst_QListWidget::setData_data()
{
QTest::addColumn<QStringList>("initialItems");
QTest::addColumn<int>("itemIndex");
QTest::addColumn<IntList>("roles");
QTest::addColumn<QVariantList>("values");
QTest::addColumn<int>("expectedSignalCount");
QStringList initialItems;
IntList roles;
QVariantList values;
{
initialItems.clear(); roles.clear(); values.clear();
initialItems << "foo";
roles << Qt::DisplayRole;
values << "xxx";
QTest::newRow("changing a role should emit")
<< initialItems << 0 << roles << values << 1;
}
{
initialItems.clear(); roles.clear(); values.clear();
initialItems << "foo";
roles << Qt::DisplayRole;
values << "foo";
QTest::newRow("setting the same value should not emit")
<< initialItems << 0 << roles << values << 0;
}
{
initialItems.clear(); roles.clear(); values.clear();
initialItems << "foo";
roles << Qt::DisplayRole << Qt::DisplayRole;
values << "bar" << "bar";
QTest::newRow("setting the same value twice should only emit once")
<< initialItems << 0 << roles << values << 1;
}
{
initialItems.clear(); roles.clear(); values.clear();
initialItems << "foo";
roles << Qt::DisplayRole << Qt::ToolTipRole << Qt::WhatsThisRole;
values << "bar" << "bartooltip" << "barwhatsthis";
QTest::newRow("changing three roles should emit three times")
<< initialItems << 0 << roles << values << 3;
}
}
void tst_QListWidget::setData()
{
QFETCH(QStringList, initialItems);
QFETCH(int, itemIndex);
QFETCH(IntList, roles);
QFETCH(QVariantList, values);
QFETCH(int, expectedSignalCount);
QCOMPARE(roles.size(), values.size());
for (int manipulateModel = 0; manipulateModel < 2; ++manipulateModel) {
testWidget->clear();
testWidget->insertItems(0, initialItems);
QCOMPARE(testWidget->count(), initialItems.size());
QSignalSpy itemChanged(testWidget, &QListWidget::itemChanged);
QSignalSpy dataChanged(testWidget->model(), &QAbstractItemModel::dataChanged);
for (int i = 0; i < roles.size(); ++i) {
if (manipulateModel)
testWidget->model()->setData(
testWidget->model()->index(itemIndex, 0, testWidget->rootIndex()),
values.at(i),
roles.at(i));
else
testWidget->item(itemIndex)->setData(roles.at(i), values.at(i));
}
// make sure the data is actually set
for (int i = 0; i < roles.size(); ++i)
QCOMPARE(testWidget->item(itemIndex)->data(roles.at(i)), values.at(i));
// make sure we get the right number of emits
QCOMPARE(itemChanged.size(), expectedSignalCount);
QCOMPARE(dataChanged.size(), expectedSignalCount);
}
}
void tst_QListWidget::insertItemsWithSorting_data()
{
QTest::addColumn<Qt::SortOrder>("sortOrder");
QTest::addColumn<QStringList>("initialItems");
QTest::addColumn<QStringList>("insertItems");
QTest::addColumn<QStringList>("expectedItems");
QTest::addColumn<IntList>("expectedRows");
QTest::newRow("() + (a) = (a)")
<< Qt::AscendingOrder
<< QStringList()
<< (QStringList() << "a")
<< (QStringList() << "a")
<< IntList();
QTest::newRow("() + (c, b, a) = (a, b, c)")
<< Qt::AscendingOrder
<< QStringList()
<< (QStringList() << "c" << "b" << "a")
<< (QStringList() << "a" << "b" << "c")
<< IntList();
QTest::newRow("() + (a, b, c) = (c, b, a)")
<< Qt::DescendingOrder
<< QStringList()
<< (QStringList() << "a" << "b" << "c")
<< (QStringList() << "c" << "b" << "a")
<< IntList();
QTest::newRow("(a) + (b) = (a, b)")
<< Qt::AscendingOrder
<< QStringList("a")
<< (QStringList() << "b")
<< (QStringList() << "a" << "b")
<< (IntList() << 0);
QTest::newRow("(a) + (b) = (b, a)")
<< Qt::DescendingOrder
<< QStringList("a")
<< (QStringList() << "b")
<< (QStringList() << "b" << "a")
<< (IntList() << 1);
QTest::newRow("(a, c, b) + (d) = (a, b, c, d)")
<< Qt::AscendingOrder
<< (QStringList() << "a" << "c" << "b")
<< (QStringList() << "d")
<< (QStringList() << "a" << "b" << "c" << "d")
<< (IntList() << 0 << 1 << 2);
QTest::newRow("(b, c, a) + (d) = (d, c, b, a)")
<< Qt::DescendingOrder
<< (QStringList() << "b" << "c" << "a")
<< (QStringList() << "d")
<< (QStringList() << "d" << "c" << "b" << "a")
<< (IntList() << 1 << 2 << 3);
{
IntList ascendingRows;
IntList reverseRows;
QStringList ascendingItems;
QStringList reverseItems;
for (char i = 'a'; i <= 'z'; ++i) {
ascendingItems << QString(1, QLatin1Char(i));
reverseItems << QString(1, QLatin1Char('z' - i + 'a'));
ascendingRows << i - 'a';
reverseRows << 'z' - i + 'a';
}
QTest::newRow("() + (sorted items) = (sorted items)")
<< Qt::AscendingOrder
<< QStringList()
<< ascendingItems
<< ascendingItems
<< IntList();
QTest::newRow("(sorted items) + () = (sorted items)")
<< Qt::AscendingOrder
<< ascendingItems
<< QStringList()
<< ascendingItems
<< ascendingRows;
QTest::newRow("() + (ascending items) = (reverse items)")
<< Qt::DescendingOrder
<< QStringList()
<< ascendingItems
<< reverseItems
<< IntList();
QTest::newRow("(reverse items) + () = (ascending items)")
<< Qt::AscendingOrder
<< reverseItems
<< QStringList()
<< ascendingItems
<< ascendingRows;
QTest::newRow("(reverse items) + () = (reverse items)")
<< Qt::DescendingOrder
<< reverseItems
<< QStringList()
<< reverseItems
<< ascendingRows;
}
}
void tst_QListWidget::insertItemsWithSorting()
{
QFETCH(Qt::SortOrder, sortOrder);
QFETCH(const QStringList, initialItems);
QFETCH(const QStringList, insertItems);
QFETCH(const QStringList, expectedItems);
QFETCH(const IntList, expectedRows);
for (int method = 0; method < 5; ++method) {
QListWidget w;
w.setSortingEnabled(true);
w.sortItems(sortOrder);
w.addItems(initialItems);
QAbstractItemModel *model = w.model();
QList<QPersistentModelIndex> persistent;
for (int j = 0; j < model->rowCount(QModelIndex()); ++j)
persistent << model->index(j, 0, QModelIndex());
switch (method) {
case 0:
// insert using item constructor
for (const QString &str : insertItems)
new QListWidgetItem(str, &w);
break;
case 1:
// insert using insertItems()
w.insertItems(0, insertItems);
break;
case 2:
// insert using insertItem()
for (const QString &str : insertItems)
w.insertItem(0, str);
break;
case 3:
// insert using addItems()
w.addItems(insertItems);
break;
case 4:
// insert using addItem()
for (const QString &str : insertItems)
w.addItem(str);
break;
}
QCOMPARE(w.count(), expectedItems.size());
for (int i = 0; i < w.count(); ++i)
QCOMPARE(w.item(i)->text(), expectedItems.at(i));
for (int k = 0; k < persistent.size(); ++k)
QCOMPARE(persistent.at(k).row(), expectedRows.at(k));
}
}
void tst_QListWidget::changeDataWithSorting_data()
{
QTest::addColumn<Qt::SortOrder>("sortOrder");
QTest::addColumn<QStringList>("initialItems");
QTest::addColumn<int>("itemIndex");
QTest::addColumn<QString>("newValue");
QTest::addColumn<QStringList>("expectedItems");
QTest::addColumn<IntList>("expectedRows");
QTest::addColumn<bool>("reorderingExpected");
QTest::newRow("change a to b in (a)")
<< Qt::AscendingOrder
<< (QStringList() << "a")
<< 0 << "b"
<< (QStringList() << "b")
<< (IntList() << 0)
<< false;
QTest::newRow("change a to b in (a, c)")
<< Qt::AscendingOrder
<< (QStringList() << "a" << "c")
<< 0 << "b"
<< (QStringList() << "b" << "c")
<< (IntList() << 0 << 1)
<< false;
QTest::newRow("change a to c in (a, b)")
<< Qt::AscendingOrder
<< (QStringList() << "a" << "b")
<< 0 << "c"
<< (QStringList() << "b" << "c")
<< (IntList() << 1 << 0)
<< true;
QTest::newRow("change c to a in (c, b)")
<< Qt::DescendingOrder
<< (QStringList() << "c" << "b")
<< 0 << "a"
<< (QStringList() << "b" << "a")
<< (IntList() << 1 << 0)
<< true;
QTest::newRow("change e to i in (a, c, e, g)")
<< Qt::AscendingOrder
<< (QStringList() << "a" << "c" << "e" << "g")
<< 2 << "i"
<< (QStringList() << "a" << "c" << "g" << "i")
<< (IntList() << 0 << 1 << 3 << 2)
<< true;
QTest::newRow("change e to a in (c, e, g, i)")
<< Qt::AscendingOrder
<< (QStringList() << "c" << "e" << "g" << "i")
<< 1 << "a"
<< (QStringList() << "a" << "c" << "g" << "i")
<< (IntList() << 1 << 0 << 2 << 3)
<< true;
QTest::newRow("change e to f in (c, e, g, i)")
<< Qt::AscendingOrder
<< (QStringList() << "c" << "e" << "g" << "i")
<< 1 << "f"
<< (QStringList() << "c" << "f" << "g" << "i")
<< (IntList() << 0 << 1 << 2 << 3)
<< false;
}
class QListWidgetDataChanged : public QListWidget
{
Q_OBJECT
public:
using QListWidget::QListWidget;
void dataChanged(const QModelIndex &topLeft, const QModelIndex &bottomRight,
const QList<int> &roles) override
{
QListWidget::dataChanged(topLeft, bottomRight, roles);
currentRoles = roles;
}
QList<int> currentRoles;
};
void tst_QListWidget::itemData()
{
QListWidgetDataChanged widget;
QListWidgetItem item(&widget);
item.setFlags(item.flags() | Qt::ItemIsEditable);
item.setData(Qt::DisplayRole, QString("0"));
QCOMPARE(widget.currentRoles, QList<int>({ Qt::DisplayRole, Qt::EditRole }));
item.setData(Qt::CheckStateRole, Qt::PartiallyChecked);
QCOMPARE(widget.currentRoles, QList<int> { Qt::CheckStateRole });
for (int i = 0; i < 4; ++i)
{
item.setData(Qt::UserRole + i, QString::number(i + 1));
QCOMPARE(widget.currentRoles, QList<int> { Qt::UserRole + i });
}
QMap<int, QVariant> flags = widget.model()->itemData(widget.model()->index(0, 0));
QCOMPARE(flags.size(), 6);
for (int i = 0; i < 4; ++i)
QCOMPARE(flags[Qt::UserRole + i].toString(), QString::number(i + 1));
item.setBackground(QBrush(Qt::red));
item.setForeground(QBrush(Qt::red));
item.setSizeHint(QSize(10, 10));
QCOMPARE(item.data(Qt::BackgroundRole), QVariant(QBrush(Qt::red)));
QCOMPARE(item.data(Qt::ForegroundRole), QVariant(QBrush(Qt::red)));
QCOMPARE(item.data(Qt::SizeHintRole), QVariant(QSize(10, 10)));
// an empty brush should result in a QVariant()
item.setBackground(QBrush());
item.setForeground(QBrush());
item.setSizeHint(QSize());
QCOMPARE(item.data(Qt::BackgroundRole), QVariant());
QCOMPARE(item.data(Qt::ForegroundRole), QVariant());
QCOMPARE(item.data(Qt::SizeHintRole), QVariant());
}
void tst_QListWidget::changeDataWithSorting()
{
QFETCH(Qt::SortOrder, sortOrder);
QFETCH(QStringList, initialItems);
QFETCH(int, itemIndex);
QFETCH(QString, newValue);
QFETCH(QStringList, expectedItems);
QFETCH(IntList, expectedRows);
QFETCH(bool, reorderingExpected);
QListWidget w;
w.setSortingEnabled(true);
w.sortItems(sortOrder);
w.addItems(initialItems);
QAbstractItemModel *model = w.model();
QList<QPersistentModelIndex> persistent;
for (int j = 0; j < model->rowCount(QModelIndex()); ++j)
persistent << model->index(j, 0, QModelIndex());
QSignalSpy dataChangedSpy(model, &QAbstractItemModel::dataChanged);
QSignalSpy layoutChangedSpy(model, &QAbstractItemModel::layoutChanged);
QListWidgetItem *item = w.item(itemIndex);
item->setText(newValue);
for (int i = 0; i < expectedItems.size(); ++i) {
QCOMPARE(w.item(i)->text(), expectedItems.at(i));
for (int j = 0; j < persistent.size(); ++j) {
if (persistent.at(j).row() == i) // the same toplevel row
QCOMPARE(persistent.at(j).internalPointer(), static_cast<void *>(w.item(i)));
}
}
for (int k = 0; k < persistent.size(); ++k)
QCOMPARE(persistent.at(k).row(), expectedRows.at(k));
QCOMPARE(dataChangedSpy.size(), 1);
QCOMPARE(layoutChangedSpy.size(), reorderingExpected ? 1 : 0);
}
void tst_QListWidget::itemWidget()
{
QListWidget list;
QWidget widget;
QListWidgetItem *item = new QListWidgetItem(&list);
QCOMPARE(list.itemWidget(item), nullptr);
list.setItemWidget(item, &widget);
QCOMPARE(list.itemWidget(item), &widget);
list.removeItemWidget(item);
QCOMPARE(list.itemWidget(item), nullptr);
}
#ifndef Q_OS_MAC
class MyListWidget : public QListWidget
{
Q_OBJECT
public:
using QListWidget::QListWidget;
void paintEvent(QPaintEvent *e) override
{
painted += e->region();
QListWidget::paintEvent(e);
}
QRegion painted;
};
void tst_QListWidget::fastScroll()
{
if (QGuiApplication::platformName().startsWith(QLatin1String("wayland"), Qt::CaseInsensitive))
QSKIP("Wayland: This fails. Figure out why.");
QWidget topLevel;
MyListWidget widget(&topLevel);
for (int i = 0; i < 50; ++i)
widget.addItem(QStringLiteral("Item ") + QString::number(i));
topLevel.resize(300, 300); // toplevel needs to be wide enough for the item
topLevel.show();
// Force the mouse cursor off the widget as it causes item it is over to highlight,
// which causes unexpected paint region.
QTest::mouseMove(&widget, QPoint(-10, -10));
// Make sure the widget gets the first full repaint. On
// some WMs, we'll get two (first inactive exposure, then
// active exposure.
QVERIFY(QTest::qWaitForWindowActive(&topLevel));
QSize itemSize = widget.visualItemRect(widget.item(0)).size();
QVERIFY(!itemSize.isEmpty());
QScrollBar *sbar = widget.verticalScrollBar();
widget.setVerticalScrollMode(QAbstractItemView::ScrollPerItem);
widget.painted = QRegion();
sbar->setValue(sbar->value() + sbar->singleStep());
QApplication::processEvents();
const QSize actualItemSize = widget.painted.boundingRect().size();
if (actualItemSize != itemSize)
QEXPECT_FAIL("", "QTBUG-21098", Continue);
// only one item should be repainted, the rest should be scrolled in memory
QCOMPARE(actualItemSize, itemSize);
}
#endif // Q_OS_MAC
void tst_QListWidget::insertUnchanged()
{
QListWidget w;
QSignalSpy itemChangedSpy(&w, &QListWidget::itemChanged);
QListWidgetItem item("foo", &w);
QCOMPARE(itemChangedSpy.size(), 0);
}
void tst_QListWidget::setSortingEnabled()
{
QListWidget w;
QListWidgetItem *item1 = new QListWidgetItem(&w);
QListWidgetItem *item2 = new QListWidgetItem(&w);
w.setSortingEnabled(true);
QCOMPARE(w.isSortingEnabled(), true);
QCOMPARE(w.item(0), item1);
QCOMPARE(w.item(1), item2);
}
void tst_QListWidget::task199503_crashWhenCleared()
{
//we test here for a crash that would occur if you clear the items in the currentItemChanged signal
QListWidget w;
w.addItems({"item1", "item2", "item3"});
w.setCurrentRow(0);
w.connect(&w, &QListWidget::currentItemChanged, &w, &QListWidget::clear);
w.setCurrentRow(1);
}
void tst_QListWidget::task217070_scrollbarsAdjusted()
{
if (QGuiApplication::platformName().startsWith(QLatin1String("wayland"), Qt::CaseInsensitive))
QSKIP("Wayland: This fails. Figure out why.");
//This task was mailing for style using SH_ScrollView_FrameOnlyAroundContents such as QMotifStyle
QListWidget v;
for (int i = 0; i < 200;i++)
v.addItem(QString::number(i));
v.show();
v.setViewMode(QListView::IconMode);
v.setResizeMode(QListView::Adjust);
v.setUniformItemSizes(true);
v.resize(160, 100);
QVERIFY(QTest::qWaitForWindowActive(&v));
QScrollBar *hbar = v.horizontalScrollBar();
QScrollBar *vbar = v.verticalScrollBar();
QVERIFY(hbar && vbar);
const auto style = vbar->style();
for (int f = 150; f > 90 ; f--) {
v.resize(f, 100);
QTRY_VERIFY(style->styleHint(QStyle::SH_ScrollBar_Transient, nullptr, vbar) ||
vbar->isVisible());
//the horizontal scrollbar must not be visible.
QVERIFY(!hbar->isVisible());
}
}
void tst_QListWidget::task258949_keypressHangup()
{
QListWidget lw;
for (int y = 0; y < 5; y++) {
QListWidgetItem *lwi = new QListWidgetItem(&lw);
lwi->setText(y ? "1" : "0");
if (y)
lwi->setFlags(Qt::ItemIsSelectable);
}
lw.show();
lw.setCurrentIndex(lw.model()->index(0, 0));
QCOMPARE(lw.currentIndex(), lw.model()->index(0, 0));
QTest::qWait(30);
QTest::keyPress(&lw, '1'); //this used to freeze
QTRY_COMPARE(lw.currentIndex(), lw.model()->index(0, 0));
}
void tst_QListWidget::QTBUG8086_currentItemChangedOnClick()
{
QWidget win;
QHBoxLayout layout(&win);
QListWidget list;
for (int i = 0 ; i < 4; ++i)
new QListWidgetItem(QString::number(i), &list);
layout.addWidget(&list);
QLineEdit edit;
layout.addWidget(&edit);
edit.setFocus();
win.show();
QSignalSpy spy(&list, &QListWidget::currentItemChanged);
QVERIFY(QTest::qWaitForWindowExposed(&win));
QCOMPARE(spy.size(), 0);
QTest::mouseClick(list.viewport(), Qt::LeftButton, {},
list.visualItemRect(list.item(2)).center());
QCOMPARE(spy.size(), 1);
}
class ItemDelegate : public QStyledItemDelegate
{
Q_OBJECT
public:
using QStyledItemDelegate::QStyledItemDelegate;
QWidget *createEditor(QWidget *parent, const QStyleOptionViewItem &,
const QModelIndex &) const override
{
QLineEdit *lineEdit = new QLineEdit(parent);
lineEdit->setFrame(false);
QCompleter *completer = new QCompleter(QStringList() << "completer", lineEdit);
completer->setCompletionMode(QCompleter::InlineCompletion);
lineEdit->setCompleter(completer);
return lineEdit;
}
};
void tst_QListWidget::QTBUG14363_completerWithAnyKeyPressedEditTriggers()
{
if (QGuiApplication::platformName().startsWith(QLatin1String("wayland"), Qt::CaseInsensitive))
QSKIP("Wayland: This fails. Figure out why.");
QListWidget listWidget;
listWidget.setEditTriggers(QAbstractItemView::AnyKeyPressed);
listWidget.setItemDelegate(new ItemDelegate(&listWidget));
QListWidgetItem *item = new QListWidgetItem(QLatin1String("select an item (don't start editing)"), &listWidget);
item->setFlags(Qt::ItemIsEnabled|Qt::ItemIsSelectable|Qt::ItemIsEditable);
new QListWidgetItem(QLatin1String("try to type the letter 'c'"), &listWidget);
new QListWidgetItem(QLatin1String("completer"), &listWidget);
listWidget.show();
listWidget.setCurrentItem(item);
QApplicationPrivate::setActiveWindow(&listWidget);
QVERIFY(QTest::qWaitForWindowActive(&listWidget));
listWidget.setFocus();
QCOMPARE(QApplication::focusWidget(), &listWidget);
QTest::keyClick(listWidget.viewport(), Qt::Key_C);
QLineEdit *le = qobject_cast<QLineEdit*>(listWidget.itemWidget(item));
QVERIFY(le);
QCOMPARE(le->text(), QString("completer"));
QCOMPARE(le->completer()->currentCompletion(), QString("completer"));
}
void tst_QListWidget::mimeData()
{
TestListWidget list;
for (int x = 0; x < 10; ++x)
list.addItem(new QListWidgetItem(QStringLiteral("123")));
const QList<QListWidgetItem *> tableWidgetItemList{list.item(1)};
const QModelIndexList modelIndexList{list.indexFromItem(list.item(1))};
// do these checks more than once to ensure that the "cached indexes" work as expected
QMimeData *data;
for (int i = 0; i < 2; ++i) {
QVERIFY(!list.mimeData({}));
QVERIFY(!list.model()->mimeData({}));
QVERIFY((data = list.mimeData(tableWidgetItemList)));
delete data;
QVERIFY((data = list.model()->mimeData(modelIndexList)));
delete data;
}
// check the saved data is actually the same
QMimeData *data2;
data = list.mimeData(tableWidgetItemList);
data2 = list.model()->mimeData(modelIndexList);
const QString format = QStringLiteral("application/x-qabstractitemmodeldatalist");
QVERIFY(data->hasFormat(format));
QVERIFY(data2->hasFormat(format));
QCOMPARE(data->data(format), data2->data(format));
delete data;
delete data2;
}
void tst_QListWidget::QTBUG50891_ensureSelectionModelSignalConnectionsAreSet()
{
QListWidget list;
for (int i = 0 ; i < 4; ++i)
new QListWidgetItem(QString::number(i), &list);
list.setSelectionModel(new QItemSelectionModel(list.model()));
list.show();
QVERIFY(QTest::qWaitForWindowExposed(&list));
QSignalSpy currentItemChangedSpy(&list, &QListWidget::currentItemChanged);
QSignalSpy itemSelectionChangedSpy(&list, &QListWidget::itemSelectionChanged);
QCOMPARE(currentItemChangedSpy.size(), 0);
QCOMPARE(itemSelectionChangedSpy.size(), 0);
QTest::mouseClick(list.viewport(), Qt::LeftButton, {},
list.visualItemRect(list.item(2)).center());
QCOMPARE(currentItemChangedSpy.size(), 1);
QCOMPARE(itemSelectionChangedSpy.size(), 1);
}
void tst_QListWidget::createPersistentOnLayoutAboutToBeChanged() // QTBUG-93466
{
QListWidget widget;
QCOMPARE(widget.model()->columnCount(), 1);
widget.model()->insertRows(0, 3);
for (int row = 0; row < 3; ++row)
widget.model()->setData(widget.model()->index(row, 0), row);
QList<QPersistentModelIndex> idxList;
QSignalSpy layoutAboutToBeChangedSpy(widget.model(), &QAbstractItemModel::layoutAboutToBeChanged);
QSignalSpy layoutChangedSpy(widget.model(), &QAbstractItemModel::layoutChanged);
connect(widget.model(), &QAbstractItemModel::layoutAboutToBeChanged, this, [&idxList, &widget](){
idxList.clear();
for (int row = 0; row < 3; ++row)
idxList << QPersistentModelIndex(widget.model()->index(row, 0));
});
connect(widget.model(), &QAbstractItemModel::layoutChanged, this, [&idxList](){
QCOMPARE(idxList.size(), 3);
QCOMPARE(idxList.at(0).row(), 1);
QCOMPARE(idxList.at(0).column(), 0);
QCOMPARE(idxList.at(0).data().toInt(), 0);
QCOMPARE(idxList.at(1).row(), 0);
QCOMPARE(idxList.at(1).column(), 0);
QCOMPARE(idxList.at(1).data().toInt(), -1);
QCOMPARE(idxList.at(2).row(), 2);
QCOMPARE(idxList.at(2).column(), 0);
QCOMPARE(idxList.at(2).data().toInt(), 2);
});
widget.model()->setData(widget.model()->index(1, 0), -1);
widget.model()->sort(0);
QCOMPARE(layoutAboutToBeChangedSpy.size(), 1);
QCOMPARE(layoutChangedSpy.size(), 1);
}
void tst_QListWidget::createPersistentOnLayoutAboutToBeChangedAutoSort() // QTBUG-93466
{
QListWidget widget;
QCOMPARE(widget.model()->columnCount(), 1);
widget.model()->insertRows(0, 3);
for (int row = 0; row < 3; ++row)
widget.model()->setData(widget.model()->index(row, 0), row);
widget.setSortingEnabled(true);
QList<QPersistentModelIndex> idxList;
QSignalSpy layoutAboutToBeChangedSpy(widget.model(), &QAbstractItemModel::layoutAboutToBeChanged);
QSignalSpy layoutChangedSpy(widget.model(), &QAbstractItemModel::layoutChanged);
connect(widget.model(), &QAbstractItemModel::layoutAboutToBeChanged, this, [&idxList, &widget](){
idxList.clear();
for (int row = 0; row < 3; ++row)
idxList << QPersistentModelIndex(widget.model()->index(row, 0));
});
connect(widget.model(), &QAbstractItemModel::layoutChanged, this, [&idxList](){
QCOMPARE(idxList.size(), 3);
QCOMPARE(idxList.at(0).row(), 1);
QCOMPARE(idxList.at(0).column(), 0);
QCOMPARE(idxList.at(0).data().toInt(), 0);
QCOMPARE(idxList.at(1).row(), 0);
QCOMPARE(idxList.at(1).column(), 0);
QCOMPARE(idxList.at(1).data().toInt(), -1);
QCOMPARE(idxList.at(2).row(), 2);
QCOMPARE(idxList.at(2).column(), 0);
QCOMPARE(idxList.at(2).data().toInt(), 2);
});
widget.model()->setData(widget.model()->index(1, 0), -1);
QCOMPARE(layoutAboutToBeChangedSpy.size(), 1);
QCOMPARE(layoutChangedSpy.size(), 1);
}
// Test that dropping an item on or beneath itself remains a no-op
void tst_QListWidget::noopDragDrop() // QTBUG-100128
{
QListWidget listWidget;
QList<QListWidgetItem *> items;
for (int i = 0; i < 5; ++i) {
const QString number = QString::number(i);
QListWidgetItem *item = new QListWidgetItem(&listWidget);
item->setData(Qt::UserRole, number);
QLabel *label = new QLabel(number);
listWidget.setItemWidget(item, label);
items.append(item);
}
listWidget.show();
QVERIFY(QTest::qWaitForWindowExposed(&listWidget));
const QRect &lastItemRect = listWidget.visualItemRect(items.at(4));
const QPoint &dragStart = lastItemRect.center();
const QPoint &dropPointNirvana = lastItemRect.center() + QPoint(20, 2 * lastItemRect.height());
// Implement check as a macro (not a method) to safely determine the error location.
// The macro checks that item data and item widget remain unchanged when drag&drop are executed.
// In order to verify that the assets do *not* change, we can't use QTRY*: These macros would
// spin the event loop only once, while 3/4 mouse events need to get processed.
// That's why we spin the event loop 13 times, to make sure other unexpected or pending events
// get processed.
#define CHECK_ITEM {\
const QString number = QString::number(4);\
for (int i = 0; i < 13; ++i)\
QApplication::processEvents();\
QLabel *label = qobject_cast<QLabel *>(listWidget.itemWidget(items.at(4)));\
QVERIFY(label);\
QCOMPARE(label->text(), number);\
const QString &data = items.at(4)->data(Qt::UserRole).toString();\
QCOMPARE(data, number);\
}
// Test dropping last item beneath itself
QTest::mousePress(&listWidget, Qt::LeftButton, Qt::KeyboardModifiers(), dragStart);
QTest::mouseMove(&listWidget, dropPointNirvana);
QTest::mouseRelease(&listWidget, Qt::LeftButton);
CHECK_ITEM;
// Test dropping last item on itself
QTest::mousePress(&listWidget, Qt::LeftButton, Qt::KeyboardModifiers(), dragStart);
QTest::mouseMove(&listWidget, dropPointNirvana);
QTest::mouseMove(&listWidget, dragStart);
QTest::mouseRelease(&listWidget, Qt::LeftButton);
CHECK_ITEM;
}
#if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
void tst_QListWidget::clearItemData()
{
QListWidget list;
for (int i = 0 ; i < 4; ++i)
new QListWidgetItem(QString::number(i), &list);
QSignalSpy dataChangeSpy(list.model(), &QAbstractItemModel::dataChanged);
QVERIFY(dataChangeSpy.isValid());
QVERIFY(!list.model()->clearItemData(QModelIndex()));
QCOMPARE(dataChangeSpy.size(), 0);
QVERIFY(list.model()->clearItemData(list.model()->index(0, 0)));
QVERIFY(!list.model()->index(0, 0).data().isValid());
QCOMPARE(dataChangeSpy.size(), 1);
const QList<QVariant> dataChangeArgs = dataChangeSpy.takeFirst();
QCOMPARE(dataChangeArgs.at(0).value<QModelIndex>(), list.model()->index(0, 0));
QCOMPARE(dataChangeArgs.at(1).value<QModelIndex>(), list.model()->index(0, 0));
QVERIFY(dataChangeArgs.at(2).value<QList<int>>().isEmpty());
QVERIFY(list.model()->clearItemData(list.model()->index(0, 0)));
QCOMPARE(dataChangeSpy.size(), 0);
}
#endif
QTEST_MAIN(tst_QListWidget)
#include "tst_qlistwidget.moc"
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