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#ifndef WINDOW_H
#define WINDOW_H
#include
class QAction;
class QTableWidget;
class QTableWidgetItem;
class MainWindow : public QMainWindow
{
Q_OBJECT
public:
MainWindow();
public slots:
void changeHeight();
void changeWidth();
private:
void setupTableItems();
QTableWidget *tableWidget;
};
#endif
#include
#include "mainwindow.h"
MainWindow::MainWindow()
{
QMenu *fileMenu = new QMenu(tr("&File"));
QAction *quitAction = fileMenu->addAction(tr("E&xit"));
quitAction->setShortcut(tr("Ctrl+Q"));
QMenu *tableMenu = new QMenu(tr("&Table"));
QAction *tableWidthAction = tableMenu->addAction(tr("Change Table &Width"));
QAction *tableHeightAction = tableMenu->addAction(tr("Change Table &Height"));
menuBar()->addMenu(fileMenu);
menuBar()->addMenu(tableMenu);
tableWidget = new QTableWidget(this);
tableWidget->setSelectionMode(QAbstractItemView::ExtendedSelection);
connect(quitAction, SIGNAL(triggered()), this, SLOT(close()));
connect(tableWidthAction, SIGNAL(triggered()), this, SLOT(changeWidth()));
connect(tableHeightAction, SIGNAL(triggered()), this, SLOT(changeHeight()));
setupTableItems();
setCentralWidget(tableWidget);
setWindowTitle(tr("Table Widget Resizing"));
}
void MainWindow::setupTableItems()
{
tableWidget->setRowCount(10);
tableWidget->setColumnCount(5);
for (int row = 0; row < tableWidget->rowCount(); ++row) {
for (int column = 0; column < tableWidget->columnCount(); ++column) {
QTableWidgetItem *newItem = new QTableWidgetItem(tr("%1").arg(
(row+1)*(column+1)));
tableWidget->setItem(row, column, newItem);
}
}
}
void MainWindow::changeWidth()
{
bool ok;
int newWidth = QInputDialog::getInteger(this, tr("Change table width"),
tr("Input the number of columns required (1-20):"),
tableWidget->columnCount(), 1, 20, 1, &ok);
if (ok)
tableWidget->setColumnCount(newWidth);
}
void MainWindow::changeHeight()
{
bool ok;
int newHeight = QInputDialog::getInteger(this, tr("Change table height"),
tr("Input the number of rows required (1-20):"),
tableWidget->rowCount(), 1, 20, 1, &ok);
if (ok)
tableWidget->setRowCount(newHeight);
}
#include
#include "mainwindow.h"
int main(int argc, char *argv[])
{
QApplication app(argc, argv);
MainWindow *window = new MainWindow;
window->show();
return app.exec();
}