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/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** Contact: Nokia Corporation (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 Technology Preview License Agreement accompanying
** this package.
**
** 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 1.1, included in the file LGPL_EXCEPTION.txt in this
** package.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@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));
}
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