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+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the documentation of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain
+** additional rights. These rights are described in the Nokia Qt LGPL
+** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QtGui>
+#include "math.h"
+
+#include "mainwindow.h"
+
+MainWindow::MainWindow()
+{
+ QMenu *fileMenu = new QMenu(tr("&File"));
+
+ QAction *quitAction = fileMenu->addAction(tr("E&xit"));
+ quitAction->setShortcut(tr("Ctrl+Q"));
+
+ QMenu *itemsMenu = new QMenu(tr("&Items"));
+
+ QAction *sumItemsAction = itemsMenu->addAction(tr("&Sum Items"));
+ QAction *averageItemsAction = itemsMenu->addAction(tr("&Average Items"));
+
+ menuBar()->addMenu(fileMenu);
+ menuBar()->addMenu(itemsMenu);
+
+//! [0]
+ tableWidget = new QTableWidget(12, 3, this);
+//! [0]
+ tableWidget->setSelectionMode(QAbstractItemView::ExtendedSelection);
+
+//! [1]
+ QTableWidgetItem *valuesHeaderItem = new QTableWidgetItem(tr("Values"));
+ tableWidget->setHorizontalHeaderItem(0, valuesHeaderItem);
+//! [1]
+ valuesHeaderItem->setTextAlignment(Qt::AlignVCenter);
+ QTableWidgetItem *squaresHeaderItem = new QTableWidgetItem(tr("Squares"));
+ squaresHeaderItem->setIcon(QIcon(QPixmap(":/Images/squared.png")));
+ squaresHeaderItem->setTextAlignment(Qt::AlignVCenter);
+//! [2]
+ QTableWidgetItem *cubesHeaderItem = new QTableWidgetItem(tr("Cubes"));
+ cubesHeaderItem->setIcon(QIcon(QPixmap(":/Images/cubed.png")));
+ cubesHeaderItem->setTextAlignment(Qt::AlignVCenter);
+//! [2]
+ tableWidget->setHorizontalHeaderItem(1, squaresHeaderItem);
+ tableWidget->setHorizontalHeaderItem(2, cubesHeaderItem);
+
+ connect(quitAction, SIGNAL(triggered()), this, SLOT(close()));
+ connect(sumItemsAction, SIGNAL(triggered()), this, SLOT(sumItems()));
+ connect(averageItemsAction, SIGNAL(triggered()), this, SLOT(averageItems()));
+
+ setupTableItems();
+
+ setCentralWidget(tableWidget);
+ setWindowTitle(tr("Table Widget"));
+}
+
+void MainWindow::setupTableItems()
+{
+ for (int row = 0; row < tableWidget->rowCount()-1; ++row) {
+ for (int column = 0; column < tableWidget->columnCount(); ++column) {
+//! [3]
+ QTableWidgetItem *newItem = new QTableWidgetItem(tr("%1").arg(
+ pow(row, column+1)));
+ tableWidget->setItem(row, column, newItem);
+//! [3]
+ }
+ }
+ for (int column = 0; column < tableWidget->columnCount(); ++column) {
+ QTableWidgetItem *newItem = new QTableWidgetItem;
+ newItem->setFlags(Qt::ItemIsEnabled);
+ tableWidget->setItem(tableWidget->rowCount()-1, column, newItem);
+ }
+}
+
+void MainWindow::averageItems()
+{
+ QList<QTableWidgetItem *> selected = tableWidget->selectedItems();
+ QTableWidgetItem *item;
+ int number = 0;
+ double total = 0;
+
+ foreach (item, selected) {
+ bool ok;
+ double value = item->text().toDouble(&ok);
+
+ if (ok && !item->text().isEmpty()) {
+ total += value;
+ number++;
+ }
+ }
+ if (number > 0)
+ tableWidget->currentItem()->setText(QString::number(total/number));
+}
+
+void MainWindow::sumItems()
+{
+//! [4]
+ QList<QTableWidgetItem *> selected = tableWidget->selectedItems();
+ QTableWidgetItem *item;
+ int number = 0;
+ double total = 0;
+
+ foreach (item, selected) {
+ bool ok;
+ double value = item->text().toDouble(&ok);
+
+ if (ok && !item->text().isEmpty()) {
+ total += value;
+ number++;
+ }
+ }
+//! [4]
+ if (number > 0)
+ tableWidget->currentItem()->setText(QString::number(total));
+}