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Trolltech reserves all rights not expressly ** granted herein. ** ** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE ** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. ** ****************************************************************************/ #include <QtGui> #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")); insertAction = itemsMenu->addAction(tr("&Insert Item")); removeAction = itemsMenu->addAction(tr("&Remove Item")); QAction *ascendingAction = itemsMenu->addAction(tr("Sort in &Ascending Order")); QAction *descendingAction = itemsMenu->addAction(tr("Sort in &Descending Order")); menuBar()->addMenu(fileMenu); menuBar()->addMenu(itemsMenu); /* For convenient quoting: //! [0] QListWidget *listWidget = new QListWidget(this); //! [0] */ listWidget = new QListWidget(this); listWidget->setSelectionMode(QAbstractItemView::SingleSelection); connect(quitAction, SIGNAL(triggered()), this, SLOT(close())); connect(ascendingAction, SIGNAL(triggered()), this, SLOT(sortAscending())); connect(descendingAction, SIGNAL(triggered()), this, SLOT(sortDescending())); connect(insertAction, SIGNAL(triggered()), this, SLOT(insertItem())); connect(removeAction, SIGNAL(triggered()), this, SLOT(removeItem())); connect(listWidget, SIGNAL(currentItemChanged(QListWidgetItem *, QListWidgetItem *)), this, SLOT(updateMenus(QListWidgetItem *))); setupListItems(); updateMenus(listWidget->currentItem()); setCentralWidget(listWidget); setWindowTitle(tr("List Widget")); } void MainWindow::setupListItems() { //! [1] new QListWidgetItem(tr("Oak"), listWidget); new QListWidgetItem(tr("Fir"), listWidget); new QListWidgetItem(tr("Pine"), listWidget); //! [1] new QListWidgetItem(tr("Birch"), listWidget); //! [2] new QListWidgetItem(tr("Hazel"), listWidget); //! [2] new QListWidgetItem(tr("Redwood"), listWidget); //! [3] new QListWidgetItem(tr("Sycamore"), listWidget); new QListWidgetItem(tr("Chestnut"), listWidget); new QListWidgetItem(tr("Mahogany"), listWidget); //! [3] } void MainWindow::sortAscending() { //! [4] listWidget->sortItems(Qt::AscendingOrder); //! [4] } void MainWindow::sortDescending() { //! [5] listWidget->sortItems(Qt::DescendingOrder); //! [5] } void MainWindow::insertItem() { if (!listWidget->currentItem()) return; QString itemText = QInputDialog::getText(this, tr("Insert Item"), tr("Input text for the new item:")); if (itemText.isNull()) return; //! [6] QListWidgetItem *newItem = new QListWidgetItem; newItem->setText(itemText); //! [6] int row = listWidget->row(listWidget->currentItem()); //! [7] listWidget->insertItem(row, newItem); //! [7] QString toolTipText = tr("Tooltip:") + itemText; QString statusTipText = tr("Status tip:") + itemText; QString whatsThisText = tr("What's This?:") + itemText; //! [8] newItem->setToolTip(toolTipText); newItem->setStatusTip(toolTipText); newItem->setWhatsThis(whatsThisText); //! [8] } void MainWindow::removeItem() { listWidget->takeItem(listWidget->row(listWidget->currentItem())); } void MainWindow::updateMenus(QListWidgetItem *current) { insertAction->setEnabled(current != 0); removeAction->setEnabled(current != 0); }