C++ QListView::setModel方法代码示例

//! [0] //! [1]
int main(int argc, char *argv[])
{
    QApplication app(argc, argv);
    QSplitter *splitter = new QSplitter;

//! [2] //! [3]
    QFileSystemModel *model = new QFileSystemModel;
    model->setRootPath(QDir::currentPath());
//! [0] //! [2] //! [4] //! [5]
    QTreeView *tree = new QTreeView(splitter);
//! [3] //! [6]
    tree->setModel(model);
//! [4] //! [6] //! [7]
    tree->setRootIndex(model->index(QDir::currentPath()));
//! [7]

    QListView *list = new QListView(splitter);
    list->setModel(model);
    list->setRootIndex(model->index(QDir::currentPath()));

//! [5]
    QItemSelectionModel *selection = new QItemSelectionModel(model);
    tree->setSelectionModel(selection);
    list->setSelectionModel(selection);

//! [8]
    splitter->setWindowTitle("Two views onto the same file system model");
    splitter->show();
    return app.exec();
}

void MainWindow::prepareProjectListView()
{
    QListView *view = ui->centralWidget->findChild<QListView*>("projectLst");
    QStandardItemModel *model = new QStandardItemModel;
    view->setItemDelegate(new ProjectItemDelegate);
    view->setModel(model);
}

void tst_QItemDelegate::editorKeyPress()
{
    QFETCH(QString, initial);
    QFETCH(QString, expected);

    QStandardItemModel model;
    model.appendRow(new QStandardItem(initial));

    QListView view;
    view.setModel(&model);
    view.show();

    QModelIndex index = model.index(0, 0);
    view.setCurrentIndex(index); // the editor will only selectAll on the current index
    view.edit(index);

    QList<QLineEdit*> lineEditors = qFindChildren<QLineEdit *>(view.viewport());
    QCOMPARE(lineEditors.count(), 1);

    QLineEdit *editor = lineEditors.at(0);
    QCOMPARE(editor->selectedText(), initial);

    QTest::keyClicks(editor, expected);
    QTest::keyClick(editor, Qt::Key_Enter);
    QApplication::processEvents();

    QCOMPARE(index.data().toString(), expected);
}

Window::Window(QWidget *parent)
    : QWidget(parent)
{
    FileListModel *model = new FileListModel(this);

    model->init();

    QLabel *label = new QLabel(tr("&Directory:"));
    QLineEdit *lineEdit = new QLineEdit;
    label->setBuddy(lineEdit);

    QListView *view = new QListView;
    view->setModel(model);
    view->setUniformItemSizes(true);

    connect(lineEdit, SIGNAL(textChanged(QString)), model, SLOT(setDirPath(QString)));
    connect(lineEdit, SIGNAL(editingFinished()), model, SLOT(list()));


    /*
	here: connect the signal of special io thread entry added to the slot entryadded of filelistmodel
    */

    QGridLayout *layout = new QGridLayout;
    layout->addWidget(label, 0, 0);
    layout->addWidget(lineEdit, 0, 1);
    layout->addWidget(view, 1, 0, 1, 2);

    setLayout(layout);
    setWindowTitle(tr("Fetch More Example"));

}

void MainWindow::buildFileBrowser()
{
    QString rootPath = qgetenv("HOME");
    this->drivesModel->setFilter(QDir::NoDotAndDotDot | QDir::Dirs);

    QTreeView *treeView = this->treeView = new QTreeView(this->ui->dockDir);
    treeView->setModel(this->drivesModel);
    treeView->setRootIndex(this->drivesModel->setRootPath(rootPath + "/../"));
    treeView->hideColumn(1);
    treeView->hideColumn(2);
    treeView->hideColumn(3);
    treeView->setEditTriggers(QAbstractItemView::NoEditTriggers);
    treeView->setDragEnabled(true);
    treeView->setDragDropMode(QAbstractItemView::DragOnly);
    this->ui->dockDir->setWidget(treeView);

    this->filesModel->setFilter(QDir::NoDotAndDotDot | QDir::Files);
    QListView *listView = this->listView = new QListView(this->ui->dockFile);
    listView->setModel(this->filesModel);
    listView->setRootIndex(this->filesModel->setRootPath(rootPath));
    listView->setEditTriggers(QAbstractItemView::NoEditTriggers);
    listView->setDragEnabled(true);
    listView->setSelectionMode(QAbstractItemView::ExtendedSelection);
    this->ui->dockFile->setWidget(listView);

    listView->show();
    treeView->show();
}

void tst_QItemDelegate::doubleEditorNegativeInput()
{
    QStandardItemModel model;

    QStandardItem *item = new QStandardItem;
    item->setData(10.0, Qt::DisplayRole);
    model.appendRow(item);

    QListView view;
    view.setModel(&model);
    view.show();

    QModelIndex index = model.index(0, 0);
    view.setCurrentIndex(index); // the editor will only selectAll on the current index
    view.edit(index);

    QList<QDoubleSpinBox*> editors = qFindChildren<QDoubleSpinBox *>(view.viewport());
    QCOMPARE(editors.count(), 1);

    QDoubleSpinBox *editor = editors.at(0);
    QCOMPARE(editor->value(), double(10));

    QTest::keyClick(editor, Qt::Key_Minus);
    QTest::keyClick(editor, Qt::Key_1);
    QTest::keyClick(editor, Qt::Key_0);
    QTest::keyClick(editor, Qt::Key_Comma); //support both , and . locales
    QTest::keyClick(editor, Qt::Key_Period);
    QTest::keyClick(editor, Qt::Key_0);
    QTest::keyClick(editor, Qt::Key_Enter);
    QApplication::processEvents();

    QCOMPARE(index.data().toString(), QString("-10"));
}

PrivateChatDialog::PrivateChatDialog(QWidget * parent)
    : QDialog(parent)
{
    m_name_w = new QLineEdit;

    m_owner_w = new QLineEdit;
    m_owner_w->setReadOnly(true);

    QListView * listView = new QListView;
    listView->setModel(&m_model);

    QFormLayout * formLayout = new QFormLayout;
    formLayout->addRow(tr("&Name : "), m_name_w);
    formLayout->addRow(tr("&Owner : "), m_owner_w);
    formLayout->addRow(tr("&Player : "), listView);

    m_buttonBox = new QDialogButtonBox;
    connect(m_buttonBox, SIGNAL(accepted()), this, SLOT(accept()));
    connect(m_buttonBox, SIGNAL(rejected()), this, SLOT(reject()));

    QVBoxLayout * mainLayout = new QVBoxLayout;
    mainLayout->addLayout(formLayout);
    mainLayout->addWidget(m_buttonBox);

    setLayout(mainLayout);

    setSizeGripEnabled(true);
}

//! [0]
int main(int argc, char *argv[])
{
    QApplication app(argc, argv);

// Unindented for quoting purposes:
//! [1]
QStringList numbers;
numbers << "One" << "Two" << "Three" << "Four" << "Five";

QAbstractItemModel *model = new StringListModel(numbers);
//! [0] //! [1] //! [2] //! [3]
QListView *view = new QListView;
//! [2]
view->setWindowTitle("View onto a string list model");
//! [4]
view->setModel(model);
//! [3] //! [4]

    model->insertRows(5, 7, QModelIndex());

    for (int row = 5; row < 12; ++row) {
        QModelIndex index = model->index(row, 0, QModelIndex());
        model->setData(index, QString::number(row+1));
    }

//! [5]
    view->show();
    return app.exec();
}

Window::Window(QWidget *parent)
    : QWidget(parent)
{
    FileListModel *model = new FileListModel(this);
    model->setDirPath(QLibraryInfo::location(QLibraryInfo::PrefixPath));

    QLabel *label = new QLabel(tr("&Directory:"));
    QLineEdit *lineEdit = new QLineEdit;
    label->setBuddy(lineEdit);

    QListView *view = new QListView;
    view->setModel(model);

    logViewer = new QTextBrowser;
    logViewer->setSizePolicy(QSizePolicy(QSizePolicy::Preferred, QSizePolicy::Preferred));

    connect(lineEdit, SIGNAL(textChanged(QString)),
            model, SLOT(setDirPath(QString)));
    connect(lineEdit, SIGNAL(textChanged(QString)),
            logViewer, SLOT(clear()));
    connect(model, SIGNAL(numberPopulated(int)),
            this, SLOT(updateLog(int)));
    
    QGridLayout *layout = new QGridLayout;
    layout->addWidget(label, 0, 0);
    layout->addWidget(lineEdit, 0, 1);
    layout->addWidget(view, 1, 0, 1, 2);
    layout->addWidget(logViewer, 2, 0, 1, 2);

    setLayout(layout);
    setWindowTitle(tr("Fetch More Example"));
}

int main( int argc, char* argv[] )
{
  QApplication app( argc, argv );

  // Open the addressbook file in the working directory 
  QFile file("addressbook.csv");
  if ( !file.open(QIODevice::ReadOnly|QIODevice::Text) )
	  return 1;

  // Read its content into a string
  QString addresses = QString::fromUtf8(file.readAll());
  AddressbookModel model(addresses);

  QListView listView;
  listView.setModel(&model);
  listView.setModelColumn(0);
  listView.show();

  QTreeView treeView;
  treeView.setModel(&model);
  treeView.show();

  QTableView tableView;
  tableView.setModel(&model);
  tableView.show();

  return app.exec();
}

void tst_QItemDelegate::task257859_finalizeEdit()
{
    QStandardItemModel model;
    model.appendRow(new QStandardItem());

    QListView view;
    view.setModel(&model);
    view.show();
    QApplication::setActiveWindow(&view);
    view.setFocus();
    QTest::qWait(30);

    QModelIndex index = model.index(0, 0);
    view.edit(index);
    QTest::qWait(30);

    QList<QLineEdit *> lineEditors = qFindChildren<QLineEdit *>(view.viewport());
    QCOMPARE(lineEditors.count(), 1);

    QPointer<QWidget> editor = lineEditors.at(0);
    QCOMPARE(editor->hasFocus(), true);

    QDialog dialog;
    QTimer::singleShot(500, &dialog, SLOT(close()));
    dialog.exec();
    QTRY_VERIFY(!editor);
}

int main(int argc, char *argv[])
{
    QApplication app(argc, argv);
    QObject *parent = &app;

    QStringList numbers;
    numbers << "One" << "Two" << "Three" << "Four" << "Five";

    QAbstractItemModel *stringListModel = new QStringListModel(numbers, parent);

//! [0]
    QSortFilterProxyModel *filterModel = new QSortFilterProxyModel(parent);
    filterModel->setSourceModel(stringListModel);
//! [0]

    QWidget *window = new QWidget;

//! [1]
    QListView *filteredView = new QListView;
    filteredView->setModel(filterModel);
//! [1]
    filteredView->setWindowTitle("Filtered view onto a string list model");

    QLineEdit *patternEditor = new QLineEdit;
    QObject::
    connect(patternEditor, SIGNAL(textChanged(const QString &)),
            filterModel, SLOT(setFilterRegExp(const QString &)));

    QVBoxLayout *layout = new QVBoxLayout(window);
    layout->addWidget(filteredView);
    layout->addWidget(patternEditor);

    window->show();
    return app.exec();
}

void tst_QItemDelegate::uintEdit()
{
    QListView view;
    QStandardItemModel model;

    {
        QStandardItem *data=new QStandardItem;
        data->setEditable(true);
        data->setData(QVariant((uint)1), Qt::DisplayRole);
        model.setItem(0, 0, data);
    }
    {
        QStandardItem *data=new QStandardItem;
        data->setEditable(true);
        data->setData(QVariant((uint)1), Qt::DisplayRole);
        model.setItem(1, 0, data);
    }

    view.setModel(&model);
    view.setEditTriggers(QAbstractItemView::AllEditTriggers);

    const QModelIndex firstCell = model.index(0, 0);

    QCOMPARE(firstCell.data(Qt::DisplayRole).userType(), static_cast<int>(QMetaType::UInt));

    view.selectionModel()->setCurrentIndex(model.index(0, 0), QItemSelectionModel::Select);
    view.edit(firstCell);

    QSpinBox *sb = view.findChild<QSpinBox*>();
    QVERIFY(sb);

    sb->stepUp();

    // Select another index to trigger the end of editing.
    const QModelIndex secondCell = model.index(1, 0);
    view.selectionModel()->setCurrentIndex(secondCell, QItemSelectionModel::Select);

    QCOMPARE(firstCell.data(Qt::DisplayRole).userType(), static_cast<int>(QMetaType::UInt));
    QCOMPARE(firstCell.data(Qt::DisplayRole).toUInt(), static_cast<uint>(2));


    view.edit(secondCell);

    // The first spinbox is deleted with deleteLater, so it is still there.
    QList<QSpinBox*> sbList = view.findChildren<QSpinBox*>();
    QCOMPARE(sbList.size(), 2);

    sb = sbList.at(1);

    sb->stepDown(); // 1 -> 0
    sb->stepDown(); // 0 (no effect)
    sb->stepDown(); // 0 (no effect)

    // Select another index to trigger the end of editing.
    view.selectionModel()->setCurrentIndex(firstCell, QItemSelectionModel::Select);

    QCOMPARE(secondCell.data(Qt::DisplayRole).userType(), static_cast<int>(QMetaType::UInt));
    QCOMPARE(secondCell.data(Qt::DisplayRole).toUInt(), static_cast<uint>(0));
}

void ComboBox::hack()
{
	QListView *v = new QListView( this );
	v->setSizePolicy( QSizePolicy::Minimum, QSizePolicy::Minimum );
	v->setMinimumHeight( 50 );
	v->setModel( model() );
	setView( v );
}

void Rozmowa::reject()
{
    QListView* rozmowa = this->findChild<QListView*>("rozmowa");
    model->messages[index].clear();
    QStringList list= model->messages[index];
    rozmowa->setModel(new QStringListModel(list));
    message->clear();
    QDialog::reject();
}