C++ QTableView::setSelectionMode方法代码示例

void ReceiveCoinsDialog::setModel(WalletModel *model)
{
    this->model = model;

    if(model && model->getOptionsModel())
    {
        model->getRecentRequestsTableModel()->sort(RecentRequestsTableModel::Date, Qt::DescendingOrder);
        connect(model->getOptionsModel(), SIGNAL(displayUnitChanged(int)), this, SLOT(updateDisplayUnit()));
        updateDisplayUnit();

        QTableView* tableView = ui->recentRequestsView;

        tableView->verticalHeader()->hide();
        tableView->setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
        tableView->setModel(model->getRecentRequestsTableModel());
        tableView->setAlternatingRowColors(true);
        tableView->setSelectionBehavior(QAbstractItemView::SelectRows);
        tableView->setSelectionMode(QAbstractItemView::ContiguousSelection);
        tableView->setColumnWidth(RecentRequestsTableModel::Date, DATE_COLUMN_WIDTH);
        tableView->setColumnWidth(RecentRequestsTableModel::Label, LABEL_COLUMN_WIDTH);
        tableView->setColumnWidth(RecentRequestsTableModel::Amount, AMOUNT_MINIMUM_COLUMN_WIDTH);

        connect(tableView->selectionModel(),
            SIGNAL(selectionChanged(QItemSelection, QItemSelection)), this,
            SLOT(recentRequestsView_selectionChanged(QItemSelection, QItemSelection)));
        // Last 2 columns are set by the columnResizingFixer, when the table geometry is ready.
        columnResizingFixer = new GUIUtil::TableViewLastColumnResizingFixer(tableView, AMOUNT_MINIMUM_COLUMN_WIDTH, DATE_COLUMN_WIDTH);
    }

void MainWindow::createSongsTable(int size)
{
    QTableView * songs = ui->tvSongs;

    delete songs->model();
    delete songs->selectionModel();
    QStandardItemModel *model = new QStandardItemModel(size, 3, songs);
    QItemSelectionModel *selections = new QItemSelectionModel(model);

    songs->setModel(model);
    songs->setSelectionModel(selections);

    songs->horizontalHeader()->setSectionsMovable(true);
    songs->horizontalHeader()->setSectionResizeMode(0, QHeaderView::Stretch);
    songs->horizontalHeader()->setSectionResizeMode(1, QHeaderView::Stretch);

    songs->verticalHeader()->setSectionsMovable(false);
    songs->verticalHeader()->setVisible(false);

    songs->setSelectionBehavior( QAbstractItemView::SelectRows );
    songs->setSelectionMode( QAbstractItemView::SingleSelection );

    songs->setContextMenuPolicy(Qt::CustomContextMenu);

    // Set StaticContents to enable minimal repaints on resizes.
    songs->viewport()->setAttribute(Qt::WA_StaticContents);

    model->setHorizontalHeaderItem(0, new QStandardItem(tr("Artist")));
    model->setHorizontalHeaderItem(1, new QStandardItem(tr("Title")));
    model->setHorizontalHeaderItem(2, new QStandardItem(tr("Length")));
}

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

    QTreeView *tree = new QTreeView();
    QListView *list = new QListView();
    QTableView *table = new QTableView();

    QSplitter splitter;
    splitter.addWidget(tree);
    splitter.addWidget(list);
    splitter.addWidget(table);

    QStandardItemModel model( 5, 2 );

    for( int r=0; r<5; r++ )
    {
        for( int c=0; c<2; c++)
        {
            QStandardItem *item = new QStandardItem(QString("Row:%0, Column:%1").arg(r).arg(c));

            if(c == 0)
            {
                for(int i=0; i<3; i++)
                {
                    QStandardItem *child = new QStandardItem(QString("Item %0").arg(i));
                    child->setEditable(false);
                    item->appendRow(child);
                }
            }

            model.setItem(r, c, item);
        }
    }

    model.setHorizontalHeaderItem(0, new QStandardItem("Foo"));
    model.setHorizontalHeaderItem(1, new QStandardItem("Bar-Baz"));

    tree->setModel(&model);
    list->setModel(&model);
    table->setModel(&model);

    list->setSelectionModel(tree->selectionModel());
    table->setSelectionModel(tree->selectionModel());

    table->setSelectionBehavior(QAbstractItemView::SelectRows);
    table->setSelectionMode(QAbstractItemView::SingleSelection);

    splitter.show();

    MainWindow w;
    w.show();

    return app.exec();
}

    // Table factory
    QTableView* MakeTableView(QAbstractItemModel* model, bool sortingEnabled = true, uint32_t modelSortColumn = 0)
    {
        class MyTable : public QTableView
        {
        public:
            QStyleOptionViewItem viewOptions() const override
            {
                QStyleOptionViewItem option = QTableView::viewOptions();
                option.decorationAlignment = Qt::AlignHCenter | Qt::AlignCenter;
                option.decorationPosition = QStyleOptionViewItem::Top;
                return option;
            }

            void mouseMoveEvent(QMouseEvent* event) override
            {
                QModelIndex index = indexAt(event->pos());
                if (index.isValid()) {
                    QVariant data = model()->data(index, PlayerTableModel::CursorRole);
                    Qt::CursorShape shape = Qt::ArrowCursor;
                    if (!data.isNull()) {
                        shape = Qt::CursorShape(data.toInt());
                    }
                    setCursor(shape);
                }

                QTableView::mouseMoveEvent(event);
            }
        };

        QTableView* tableView = new MyTable();
        tableView->setModel(model);
        tableView->setSortingEnabled(sortingEnabled);
        if (sortingEnabled) {
            tableView->sortByColumn(FindColumn(model, modelSortColumn));
        }
        tableView->verticalHeader()->hide();
        tableView->setAlternatingRowColors(true);
        tableView->verticalHeader()->setDefaultSectionSize(15);
        tableView->resizeColumnsToContents();
        tableView->horizontalHeader()->setStretchLastSection(true);
        tableView->setSelectionBehavior(QAbstractItemView::SelectRows);
        tableView->setSelectionMode(QAbstractItemView::SingleSelection);
        tableView->setFocusPolicy(Qt::StrongFocus);

        // enable mouse tracking
        tableView->setMouseTracking(true);
        tableView->viewport()->setMouseTracking(true);
        tableView->installEventFilter(this);
        tableView->viewport()->installEventFilter(this);

        return tableView;
    }

void SettingsDialog::on_pbPosition_clicked()
{
  QScopedPointer< Gui::Dialog > dialog(new Gui::Dialog(Gui::Dialog::CenterOfScreen,this));
  PositionModel *model = new PositionModel(dialog.data());
  QTableView *view = new QTableView(dialog.data());
  QItemSelectionModel *selectionModel = new QItemSelectionModel(model,dialog.data());

  dialog->setWindowTitle(tr("Set position"));

  QVBoxLayout *layout = new QVBoxLayout;
  QDialogButtonBox *dialogButtons = new QDialogButtonBox(QDialogButtonBox::Ok | QDialogButtonBox::Cancel,
                                                         Qt::Horizontal,dialog.data());
  connect(dialogButtons,SIGNAL(accepted()),dialog.data(),SLOT(accept()));
  connect(dialogButtons,SIGNAL(rejected()),dialog.data(),SLOT(reject()));

  view->setModel(model);
  view->setItemDelegateForColumn(0,new PositionLabelDelegate);
  view->setItemDelegateForColumn(1,new PositionDelegate(QApplication::palette()));
  view->setSelectionBehavior(QAbstractItemView::SelectRows);
  view->setSelectionMode(QAbstractItemView::SingleSelection);
  view->setSelectionModel(selectionModel);
  view->verticalHeader()->setVisible(false);
  view->setVerticalScrollMode(QAbstractItemView::ScrollPerPixel);
  view->setHorizontalScrollMode(QAbstractItemView::ScrollPerPixel);
  view->setEditTriggers(QAbstractItemView::NoEditTriggers);

  layout->addWidget(view);
  layout->addWidget(dialogButtons);
  dialog->setLayout(layout);
  dialog->resize(700,500);
  connect(dialog.data(),SIGNAL(executed()),view,SLOT(resizeColumnsToContents()));
  connect(dialog.data(),SIGNAL(executed()),view,SLOT(resizeRowsToContents()));

  selectionModel->select(model->index(pbPosition->property("wallPosition").toInt(),0),
                         QItemSelectionModel::SelectCurrent | QItemSelectionModel::Rows);
  view->scrollTo(model->index(pbPosition->property("wallPosition").toInt(),0));
  if (dialog->exec() == QDialog::Accepted)
  {
    Wally::Application::Position p = static_cast<Wally::Application::Position> (selectionModel->currentIndex().row());
    pbPosition->setProperty("wallPosition",static_cast<int> (p));
    pbPosition->setText(positionToString(p).replace("&","&&"));
    settingsModified();
  }
}

QmitkModulesDialog::QmitkModulesDialog(QWidget *parent, Qt::WindowFlags f) :
    QDialog(parent, f)
{
  this->setWindowTitle("MITK Modules");

  QVBoxLayout* layout = new QVBoxLayout();
  this->setLayout(layout);

  QTableView* tableView = new QTableView(this);
  QmitkModuleTableModel* tableModel = new QmitkModuleTableModel(tableView);
  QSortFilterProxyModel* sortProxyModel = new QSortFilterProxyModel(tableView);
  sortProxyModel->setSourceModel(tableModel);
  sortProxyModel->setDynamicSortFilter(true);
  tableView->setModel(sortProxyModel);

  tableView->verticalHeader()->hide();
  tableView->setHorizontalScrollMode(QAbstractItemView::ScrollPerPixel);
  tableView->setSelectionBehavior(QAbstractItemView::SelectRows);
  tableView->setSelectionMode(QAbstractItemView::ExtendedSelection);
  tableView->setTextElideMode(Qt::ElideMiddle);
  tableView->setSortingEnabled(true);
  tableView->sortByColumn(0, Qt::AscendingOrder);

  tableView->horizontalHeader()->setResizeMode(0, QHeaderView::ResizeToContents);
  tableView->horizontalHeader()->setResizeMode(2, QHeaderView::ResizeToContents);
  tableView->horizontalHeader()->setResizeMode(5, QHeaderView::ResizeToContents);
  tableView->horizontalHeader()->setStretchLastSection(true);
  tableView->horizontalHeader()->setCascadingSectionResizes(true);

  layout->addWidget(tableView);

  QDialogButtonBox* btnBox = new QDialogButtonBox(QDialogButtonBox::Close);
  layout->addWidget(btnBox);

  this->resize(800, 600);

  connect(btnBox, SIGNAL(rejected()), this, SLOT(reject()));
}

void ReceiveCoinsDialog::setModel(WalletModel *_model)
{
    this->model = _model;

    if(_model && _model->getOptionsModel())
    {
        _model->getRecentRequestsTableModel()->sort(RecentRequestsTableModel::Date, Qt::DescendingOrder);
        connect(_model->getOptionsModel(), SIGNAL(displayUnitChanged(int)), this, SLOT(updateDisplayUnit()));
        updateDisplayUnit();

        QTableView* tableView = ui->recentRequestsView;

        tableView->verticalHeader()->hide();
        tableView->setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
        tableView->setModel(_model->getRecentRequestsTableModel());
        tableView->setAlternatingRowColors(true);
        tableView->setSelectionBehavior(QAbstractItemView::SelectRows);
        tableView->setSelectionMode(QAbstractItemView::ContiguousSelection);
        tableView->setColumnWidth(RecentRequestsTableModel::Date, DATE_COLUMN_WIDTH);
        tableView->setColumnWidth(RecentRequestsTableModel::Label, LABEL_COLUMN_WIDTH);
        tableView->setColumnWidth(RecentRequestsTableModel::Amount, AMOUNT_MINIMUM_COLUMN_WIDTH);

        connect(tableView->selectionModel(),
            SIGNAL(selectionChanged(QItemSelection, QItemSelection)), this,
            SLOT(recentRequestsView_selectionChanged(QItemSelection, QItemSelection)));
        // Last 2 columns are set by the columnResizingFixer, when the table geometry is ready.
        columnResizingFixer = new GUIUtil::TableViewLastColumnResizingFixer(tableView, AMOUNT_MINIMUM_COLUMN_WIDTH, DATE_COLUMN_WIDTH, this);

        if (model->wallet().getDefaultAddressType() == OutputType::BECH32) {
            ui->useBech32->setCheckState(Qt::Checked);
        } else {
            ui->useBech32->setCheckState(Qt::Unchecked);
        }

        // eventually disable the main receive button if private key operations are disabled
        ui->receiveButton->setEnabled(!model->privateKeysDisabled());
    }

bool DatabaseHandler::getSpeciesList(QString type, QComboBox * cmb_box) {
	qDebug() << "Populating species list for " << type;
    QString qstr = "SELECT name_de, name_lat, euring_id, length FROM taxa LEFT JOIN "
    		"(SELECT id_code, to_char(avg(length), 'FM99.99') as length FROM census WHERE tp='%1' GROUP BY id_code) as lt ON taxa.euring_id = lt.id_code "
    		"WHERE type='%1' ORDER BY seaflag DESC, name_de";
	QSqlQueryModel * model = new QSqlQueryModel;
	model->setQuery(qstr.arg(type));
	qDebug() << qstr.arg(type);
	model->setHeaderData(0, Qt::Horizontal, "Deutscher Name");
	model->setHeaderData(1, Qt::Horizontal, "Wissenschaftlicher Name");
	model->setHeaderData(2, Qt::Horizontal, "EURING Code");
	model->setHeaderData(3, Qt::Horizontal, QString::fromUtf8("Länge"));
	cmb_box->setModel(model);
	QTableView * view = new QTableView;
	cmb_box->setView(view);
	view->verticalHeader()->hide();
	view->hideColumn(2);
	view->resizeColumnsToContents();
	view->setSelectionMode(QAbstractItemView::SingleSelection);
	view->setSelectionBehavior(QAbstractItemView::SelectRows);
	view->setMinimumWidth(view->horizontalHeader()->length());

	return true;
}

Widget::Widget(QWidget *parent)
    : QWidget(parent)
{
    resize(400,300);
    if(connect())
    {
        QTableView *view = new QTableView(this);
        QSqlRelationalTableModel *model = new QSqlRelationalTableModel;//要先有数据才能创建model,也就是先连接数据库局
        view->setGeometry(0,0,400,300);

        view->setModel(model);
        model->setTable("student");
        model->setSort(0,Qt::AscendingOrder);
//        model->setHeaderData(0,Qt::Horizontal,"Name");//from 0
//        model->setHeaderData(1,Qt::Horizontal,"Age");
//        model->setHeaderData(2,Qt::Horizontal,"likes");
        model->setRelation(3,QSqlRelation("city","id","name"));
        model->select();


//        view->setModel(model);

        view->setSelectionMode(QAbstractItemView::SingleSelection);//设置选择模式
        view->setSelectionBehavior(QAbstractItemView::SelectRows);//选择行
//        view->resizeColumnsToContents();//tiaozhengziti
        view->setEditTriggers(QAbstractItemView::DoubleClicked);//不可编辑?

        QHeaderView *header =  view->horizontalHeader();
        header->setStretchLastSection(true);
        view->setItemDelegate(new QSqlRelationalDelegate(view));
//        QHeaderView *head = view->verticalHeader();
//        head->setStretchLastSection(true);
//        view->show();
//        this?->show();
    }
}

//.........这里部分代码省略.........
    pageTacheComposite->setLayout(layoutCreationEvent);

    //imbrication onglets niveau2 + layout principal pageSaisie
    ongletsNiveau2->addTab(pageCreationprojet, "Projet");
    ongletsNiveau2->addTab(pageTacheUnitaire, "Tâche unitaire");
    ongletsNiveau2->addTab(pageTacheComposite, "Tâche composite");
    layoutPageSaisiePrincipal->addWidget(gBProjetTV);
    layoutPageSaisiePrincipal->addWidget(supportOngletsCreation);

    //page Affichage/////////////////////////////////////////////////////////////////////////////////////////////////////

    layoutPageAffichagePrincipal = new QVBoxLayout;

    //En tete (gestion semaine suivante/precedente
    layoutHautAgenda = new QHBoxLayout;
    dateReferenceAgenda = new QDate(QDate::currentDate());
    jourActuel = new QPushButton(constructionMessageSemaineAgenda(dateReferenceAgenda));
    jourActuel->setEnabled(false);
    bSemainePrecedente = new QPushButton("Semaine precedent");
    bSemaineSuivante = new QPushButton("Semaine suivant");

    layoutHautAgenda->addWidget(bSemainePrecedente);
    layoutHautAgenda->addWidget(jourActuel);
    layoutHautAgenda->addWidget(bSemaineSuivante);

    QStandardItemModel *modelAgenda = new QStandardItemModel(60, 7);
    QTableView *vueAgenda = new QTableView;
    vueAgenda->setEditTriggers(QAbstractItemView::NoEditTriggers);
    vueAgenda->setModel(modelAgenda);
    vueAgenda->setFixedWidth(1157);
    vueAgenda->setFixedHeight(625);
    vueAgenda->horizontalHeader()->setSectionResizeMode(QHeaderView::Fixed);
    vueAgenda->verticalHeader()->setSectionResizeMode(QHeaderView::Fixed);
    vueAgenda->setSelectionMode(QAbstractItemView::SingleSelection);

    //===========
    vueAgenda->setGridStyle(Qt::DashDotLine);

    miseAJourTableau(*modelAgenda); //, *vueAgenda);

    itemCol0 = new QStandardItem(chaineJoursHeader(1, dateReferenceAgenda->addDays(1-dateReferenceAgenda->dayOfWeek()).day(), dateReferenceAgenda->month()));
    itemCol1 = new QStandardItem(chaineJoursHeader(2, dateReferenceAgenda->addDays(2-dateReferenceAgenda->dayOfWeek()).day(), dateReferenceAgenda->month()));
    itemCol2 = new QStandardItem(chaineJoursHeader(3, dateReferenceAgenda->addDays(3-dateReferenceAgenda->dayOfWeek()).day(), dateReferenceAgenda->month()));
    itemCol3 = new QStandardItem(chaineJoursHeader(4, dateReferenceAgenda->addDays(4-dateReferenceAgenda->dayOfWeek()).day(), dateReferenceAgenda->month()));
    itemCol4 = new QStandardItem(chaineJoursHeader(5, dateReferenceAgenda->addDays(5-dateReferenceAgenda->dayOfWeek()).day(), dateReferenceAgenda->month()));
    itemCol5 = new QStandardItem(chaineJoursHeader(6, dateReferenceAgenda->addDays(6-dateReferenceAgenda->dayOfWeek()).day(), dateReferenceAgenda->month()));
    itemCol6 = new QStandardItem(chaineJoursHeader(7, dateReferenceAgenda->addDays(7-dateReferenceAgenda->dayOfWeek()).day(), dateReferenceAgenda->month()));

    modelAgenda->setHorizontalHeaderItem(0, itemCol0);
    modelAgenda->setHorizontalHeaderItem(1, itemCol1);
    modelAgenda->setHorizontalHeaderItem(2, itemCol2);
    modelAgenda->setHorizontalHeaderItem(3, itemCol3);
    modelAgenda->setHorizontalHeaderItem(4, itemCol4);
    modelAgenda->setHorizontalHeaderItem(5, itemCol5);
    modelAgenda->setHorizontalHeaderItem(6, itemCol6);

    QStringList headerVTableau;
    for(unsigned int i=7; i<22; i++)
    {
        headerVTableau << QString::number(i)+"h00";
        for(unsigned int j=1; j<4; j++)
        {
            headerVTableau << "";
            //headerVTableau << QString::number(j*15);
        }
    }

void PrintLayout::printTable()
{
	// create and setup a table
	QTableView table;
	table.setAttribute(Qt::WA_DontShowOnScreen);
	table.setSelectionMode(QAbstractItemView::NoSelection);
	table.setFocusPolicy(Qt::NoFocus);
	table.horizontalHeader()->setVisible(false);
	table.horizontalHeader()->setResizeMode(QHeaderView::Fixed);
	table.verticalHeader()->setVisible(false);
	table.verticalHeader()->setResizeMode(QHeaderView::ResizeToContents);
	table.setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
	table.setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
	// fit table to one page initially
	table.resize(scaledPageW,  scaledPageH);

	// create and fill a table model
	TablePrintModel model;
	struct dive *dive;
	int i, row = 0;
	addTablePrintHeadingRow(&model, row); // add one heading row
	row++;
	for_each_dive(i, dive) {
		if (!dive->selected && printOptions->print_selected)
			continue;
		addTablePrintDataRow(&model, row, dive);
		row++;
	}
	table.setModel(&model); // set model to table
	// resize columns to percentages from page width
	for (int i = 0; i < model.columns; i++) {
		int pw = qCeil((qreal)(tablePrintColumnWidths.at(i) * table.width()) / 100);
		table.horizontalHeader()->resizeSection(i, pw);
	}
	// reset the model at this point
	model.callReset();

	// a list of vertical offsets where pages begin and some helpers
	QList<unsigned int> pageIndexes;
	pageIndexes.append(0);
	int tableHeight = 0, rowH = 0, accH = 0;

	// process all rows
	for (int i = 0; i < model.rows; i++) {
		rowH = table.rowHeight(i);
		accH += rowH;
		if (accH > scaledPageH) { // push a new page index and add a heading
			pageIndexes.append(pageIndexes.last() + (accH - rowH));
			addTablePrintHeadingRow(&model, i);
			accH = 0;
			i--;
		}
		tableHeight += rowH;
	}
	pageIndexes.append(pageIndexes.last() + accH);
	// resize the whole widget so that it can be rendered
	table.resize(scaledPageW, tableHeight);

	// attach a painter and render pages by using pageIndexes
	QPainter painter(printer);
	painter.setRenderHint(QPainter::Antialiasing);
	painter.setRenderHint(QPainter::SmoothPixmapTransform);
	painter.scale(scaleX, scaleY);
	for (int i = 0; i < pageIndexes.size() - 1; i++) {
		if (i > 0)
			printer->newPage();
		QRegion region(0, pageIndexes.at(i) - 1,
		               table.width(),
		               pageIndexes.at(i + 1) - pageIndexes.at(i) + 2);
		table.render(&painter, QPoint(0, 0), region);
	}
}

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

// ![0]
    QStandardItemModel model(0, 1);
    populateListModel(&model);
// ![0]

    QWidget toplevel;
    QVBoxLayout *layout = new QVBoxLayout(&toplevel);

// ![1]
    QMaemo5ValueButton *button1 = new QMaemo5ValueButton("Value besides text");
    button1->setValueLayout(QMaemo5ValueButton::ValueBesideText);
    QMaemo5ListPickSelector *selector1 = new QMaemo5ListPickSelector;
    selector1->setModel(&model);
    // not setting the current index means that the value is empty.
    button1->setPickSelector(selector1);
// ![1]

// ![2]
    QStandardItemModel tableModel(0, 0);
    populateTableModel(&tableModel);
// ![2]

// ![3]
    QMaemo5ValueButton *button2 = new QMaemo5ValueButton("Value under text");
    button2->setValueLayout(QMaemo5ValueButton::ValueUnderText);
    QMaemo5ListPickSelector *selector2 = new QMaemo5ListPickSelector;
    selector2->setModel(&tableModel);
    selector2->setModelColumn(2);
    selector2->setCurrentIndex(5);
    button2->setPickSelector(selector2);
// ![3]

    // create a custom view we want a table view instead of a list
    QTableView *view = new QTableView();
    view->setEditTriggers(QAbstractItemView::NoEditTriggers);

    // try to get a sensible column width and row height
    view->setModel(&tableModel); // set the model in order to get correct column widths
    view->resizeColumnsToContents();
    view->resizeRowsToContents();
    view->horizontalHeader()->setStretchLastSection(true);

    view->verticalHeader()->setVisible(false);
    view->horizontalHeader()->setVisible(false);
    view->setSelectionBehavior(QAbstractItemView::SelectRows);
    view->setSelectionMode(QAbstractItemView::SingleSelection);

    // five rows should be visible as a default
    if (view->verticalHeader()->sectionSize(0)>0)
        view->setMinimumHeight(view->verticalHeader()->sectionSize(0) * 5);

    QMaemo5ValueButton *button3 = new QMaemo5ValueButton("Value centered under text");
    button3->setValueLayout(QMaemo5ValueButton::ValueUnderTextCentered);
    QMaemo5ListPickSelector *selector3 = new QMaemo5ListPickSelector;
    selector3->setModel(&tableModel);
    selector3->setModelColumn(2);
    selector3->setView(view); // set our new custom view
    selector3->setCurrentIndex(0);
    button3->setPickSelector(selector3);

    layout->addWidget(button1);
    layout->addWidget(button2);
    layout->addWidget(button3);

    toplevel.show();

    return app.exec();
}

void PrintLayout::printTable()
{
	struct dive *dive;
	int done = 0; // percents done
	int i, row = 0, progress, total = estimateTotalDives();
	if (!total)
		return;

	// create and setup a table
	QTableView table;
	table.setAttribute(Qt::WA_DontShowOnScreen);
	table.setSelectionMode(QAbstractItemView::NoSelection);
	table.setFocusPolicy(Qt::NoFocus);
	table.horizontalHeader()->setVisible(false);
	table.verticalHeader()->setVisible(false);
#if QT_VERSION < QT_VERSION_CHECK(5, 0, 0)
	table.horizontalHeader()->setResizeMode(QHeaderView::Fixed);
	table.verticalHeader()->setResizeMode(QHeaderView::ResizeToContents);
#else
	table.horizontalHeader()->setSectionResizeMode(QHeaderView::Fixed);
	table.verticalHeader()->setSectionResizeMode(QHeaderView::ResizeToContents);
#endif
	table.setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
	table.setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
	// fit table to one page initially
	table.resize(scaledPageW, scaledPageH);

	// don't show border
	table.setStyleSheet(
		"QTableView { border: none }");

	// create and fill a table model
	TablePrintModel model;
	addTablePrintHeadingRow(&model, row); // add one heading row
	row++;
	progress = 0;
	for_each_dive(i, dive) {
		if (!dive->selected && printOptions->print_selected)
			continue;
		addTablePrintDataRow(&model, row, dive);
		row++;
		progress++;
		emit signalProgress((progress * 10) / total);
	}
	done = 10;
	table.setModel(&model); // set model to table
	// resize columns to percentages from page width
	int accW = 0;
	int cols = model.columns;
	int tableW = table.width();
	for (i = 0; i < model.columns; i++) {
		int pw = qCeil((qreal)(tablePrintColumnWidths.at(i) * table.width()) / 100.0);
		accW += pw;
		if (i == cols - 1 && accW > tableW) /* adjust last column */
			pw -= accW - tableW;
		table.horizontalHeader()->resizeSection(i, pw);
	}
	// reset the model at this point
	model.callReset();

	// a list of vertical offsets where pages begin and some helpers
	QList<unsigned int> pageIndexes;
	pageIndexes.append(0);

	/* the algorithm bellow processes the table rows in multiple passes,
	 * compensating for loss of space due to moving rows on a new page instead
	 * of truncating them.
	 * there is a 'passes' array defining how much percents of the total
	 * progress each will take. given, the first and last stage of this function
	 * use 10% each, then the sum of passes[] here should be 80%.
	 * two should be enough! */
	const int passes[] = { 70, 10 };
	int tableHeight = 0, lastAccIndex = 0, rowH, accH, headings;
	bool isHeading = false;

	for (unsigned int pass = 0; pass < sizeof(passes) / sizeof(passes[0]); pass++) {
		progress = headings = accH = 0;
		total = model.rows - lastAccIndex;
		for (i = lastAccIndex; i < model.rows; i++) {
			rowH = table.rowHeight(i);
			accH += rowH;
			if (isHeading) {
				headings += rowH;
				isHeading = false;
			}
			if (accH > scaledPageH) {
				lastAccIndex = i;
				pageIndexes.append(pageIndexes.last() + (accH - rowH));
				addTablePrintHeadingRow(&model, i);
				isHeading = true;
				accH = 0;
				i--;
			}
			tableHeight += table.rowHeight(i);
			progress++;
			emit signalProgress(done + (progress * passes[pass]) / total);
		}
		done += passes[pass];
	}
	done = 90;
//.........这里部分代码省略.........

/* we create a table that has a fixed height, but can stretch to fit certain width */
QTableView *PrintLayout::createProfileTable(ProfilePrintModel *model, const int tableW)
{
	// setup a new table
	QTableView *table = new QTableView();
	QHeaderView *vHeader = table->verticalHeader();
	QHeaderView *hHeader = table->horizontalHeader();
	table->setAttribute(Qt::WA_DontShowOnScreen);
	table->setSelectionMode(QAbstractItemView::NoSelection);
	table->setFocusPolicy(Qt::NoFocus);
	table->setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
	table->setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
	hHeader->setVisible(false);
	vHeader->setVisible(false);
#if QT_VERSION < QT_VERSION_CHECK(5, 0, 0)
	hHeader->setResizeMode(QHeaderView::Fixed);
	vHeader->setResizeMode(QHeaderView::Fixed);
#else
	hHeader->setSectionResizeMode(QHeaderView::Fixed);
	vHeader->setSectionResizeMode(QHeaderView::Fixed);
#endif
	// set the model
	table->setModel(model);

	/* setup cell span for the table using QTableView::setSpan().
	 * changes made here reflect on ProfilePrintModel::data(). */
	const int cols = model->columnCount();
	const int rows = model->rowCount();
	// info on top
	table->setSpan(0, 0, 1, 4);
	table->setSpan(1, 0, 1, 4);
	// gas used
	table->setSpan(2, 0, 1, 2);
	table->setSpan(3, 0, 1, 2);
	// notes
	table->setSpan(6, 0, 1, 5);
	table->setSpan(7, 0, 5, 5);

	/* resize row heights to the 'profilePrintRowHeights' indexes.
	 * profilePrintTableMaxH will then hold the table height. */
	int i;
	profilePrintTableMaxH = 0;
	for (i = 0; i < rows; i++) {
		int h = profilePrintRowHeights.at(i);
		profilePrintTableMaxH += h;
		vHeader->resizeSection(i, h);
	}
	// resize columns. columns widths are percentages from the table width.
	int accW = 0;
	for (i = 0; i < cols; i++) {
		int pw = qCeil((qreal)(profilePrintColumnWidths.at(i) * tableW) / 100.0);
		accW += pw;
		if (i == cols - 1 && accW > tableW) /* adjust last column */
			pw -= accW - tableW;
		hHeader->resizeSection(i, pw);
	}
	// resize
	table->resize(tableW, profilePrintTableMaxH);
	// hide the grid and set a stylesheet
	table->setItemDelegate(new ProfilePrintDelegate(this));
	table->setShowGrid(false);
	table->setStyleSheet(
		"QTableView { border: none }"
		"QTableView::item { border: 0px; padding-left: 2px; padding-right: 2px; }");
	// return
	return table;
}