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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
#include <QtWidgets>
#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, &QAction::triggered, this, &QWidget::close);
connect(sumItemsAction, &QAction::triggered, this, &MainWindow::sumItems);
connect(averageItemsAction, &QAction::triggered, this, &MainWindow::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()
{
const QList<QTableWidgetItem *> selected = tableWidget->selectedItems();
int number = 0;
double total = 0;
for (QTableWidgetItem *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]
const QList<QTableWidgetItem *> selected = tableWidget->selectedItems();
int number = 0;
double total = 0;
for (QTableWidgetItem *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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