summaryrefslogtreecommitdiffstats
path: root/doc/src/snippets/qtreewidgetitemiterator-using/mainwindow.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'doc/src/snippets/qtreewidgetitemiterator-using/mainwindow.cpp')
-rw-r--r--doc/src/snippets/qtreewidgetitemiterator-using/mainwindow.cpp197
1 files changed, 197 insertions, 0 deletions
diff --git a/doc/src/snippets/qtreewidgetitemiterator-using/mainwindow.cpp b/doc/src/snippets/qtreewidgetitemiterator-using/mainwindow.cpp
new file mode 100644
index 0000000000..497540e054
--- /dev/null
+++ b/doc/src/snippets/qtreewidgetitemiterator-using/mainwindow.cpp
@@ -0,0 +1,197 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the documentation of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:BSD$
+** You may use this file under the terms of the BSD license as follows:
+**
+** "Redistribution and use in source and binary forms, with or without
+** modification, are permitted provided that the following conditions are
+** met:
+** * Redistributions of source code must retain the above copyright
+** notice, this list of conditions and the following disclaimer.
+** * Redistributions in binary form must reproduce the above copyright
+** notice, this list of conditions and the following disclaimer in
+** the documentation and/or other materials provided with the
+** distribution.
+** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
+** the names of its contributors may be used to endorse or promote
+** products derived from this software without specific prior written
+** permission.
+**
+** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#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"));
+ removeAction->setEnabled(false);
+ itemsMenu->addSeparator();
+ ascendingAction = itemsMenu->addAction(tr("Sort in &Ascending Order"));
+ descendingAction = itemsMenu->addAction(tr("Sort in &Descending Order"));
+ autoSortAction = itemsMenu->addAction(tr("&Automatically Sort Items"));
+ autoSortAction->setCheckable(true);
+ itemsMenu->addSeparator();
+ QAction *findItemsAction = itemsMenu->addAction(tr("&Find Items"));
+ findItemsAction->setShortcut(tr("Ctrl+F"));
+
+ menuBar()->addMenu(fileMenu);
+ menuBar()->addMenu(itemsMenu);
+
+/* For convenient quoting:
+ QTreeWidget *treeWidget = new QTreeWidget(this);
+*/
+ treeWidget = new QTreeWidget(this);
+ treeWidget->setColumnCount(2);
+ QStringList headers;
+ headers << tr("Subject") << tr("Default");
+ treeWidget->setHeaderLabels(headers);
+
+ connect(quitAction, SIGNAL(triggered()), this, SLOT(close()));
+ connect(ascendingAction, SIGNAL(triggered()), this, SLOT(sortAscending()));
+ connect(autoSortAction, SIGNAL(triggered()), this, SLOT(updateSortItems()));
+ connect(descendingAction, SIGNAL(triggered()), this, SLOT(sortDescending()));
+ connect(findItemsAction, SIGNAL(triggered()), this, SLOT(findItems()));
+ connect(insertAction, SIGNAL(triggered()), this, SLOT(insertItem()));
+ connect(removeAction, SIGNAL(triggered()), this, SLOT(removeItem()));
+ connect(treeWidget,
+ SIGNAL(currentItemChanged(QTreeWidgetItem *, QTreeWidgetItem *)),
+ this, SLOT(updateMenus(QTreeWidgetItem *)));
+
+ setupTreeItems();
+ updateMenus(treeWidget->currentItem());
+
+ setCentralWidget(treeWidget);
+ setWindowTitle(tr("Tree Widget"));
+}
+
+void MainWindow::setupTreeItems()
+{
+ QTreeWidgetItem *planets = new QTreeWidgetItem(treeWidget);
+ planets->setText(0, tr("Planets"));
+ (new QTreeWidgetItem(planets))->setText(0, tr("Mercury"));
+ (new QTreeWidgetItem(planets))->setText(0, tr("Venus"));
+
+ QTreeWidgetItem *earthItem = new QTreeWidgetItem(planets);
+ earthItem->setText(0, tr("Earth"));
+ earthItem->setText(1, tr("Yes"));
+
+ (new QTreeWidgetItem(planets))->setText(0, tr("Mars"));
+ (new QTreeWidgetItem(planets))->setText(0, tr("Jupiter"));
+ (new QTreeWidgetItem(planets))->setText(0, tr("Saturn"));
+ (new QTreeWidgetItem(planets))->setText(0, tr("Uranus"));
+ (new QTreeWidgetItem(planets))->setText(0, tr("Neptune"));
+ (new QTreeWidgetItem(planets))->setText(0, tr("Pluto"));
+}
+
+void MainWindow::findItems()
+{
+ QString itemText = QInputDialog::getText(this, tr("Find Items"),
+ tr("Text to find:"));
+
+ if (itemText.isEmpty())
+ return;
+
+//! [0]
+ QTreeWidgetItemIterator it(treeWidget);
+ while (*it) {
+ if ((*it)->text(0) == itemText)
+ (*it)->setSelected(true);
+ ++it;
+ }
+//! [0]
+}
+
+void MainWindow::insertItem()
+{
+ QTreeWidgetItem *currentItem = treeWidget->currentItem();
+
+ if (!currentItem)
+ return;
+
+ QString itemText = QInputDialog::getText(this, tr("Insert Item"),
+ tr("Input text for the new item:"));
+
+ if (itemText.isEmpty())
+ return;
+
+ QTreeWidgetItem *parent = currentItem->parent();
+ QTreeWidgetItem *newItem;
+ if (parent)
+ newItem = new QTreeWidgetItem(parent, treeWidget->currentItem());
+ else
+ newItem = new QTreeWidgetItem(treeWidget, treeWidget->currentItem());
+
+ newItem->setText(0, itemText);
+}
+
+void MainWindow::removeItem()
+{
+ QTreeWidgetItem *currentItem = treeWidget->currentItem();
+
+ if (!currentItem)
+ return;
+
+ QTreeWidgetItem *parent = currentItem->parent();
+ int index;
+
+ if (parent) {
+ index = parent->indexOfChild(treeWidget->currentItem());
+ delete parent->takeChild(index);
+ } else {
+ index = treeWidget->indexOfTopLevelItem(treeWidget->currentItem());
+ delete treeWidget->takeTopLevelItem(index);
+ }
+}
+
+void MainWindow::sortAscending()
+{
+ treeWidget->sortItems(0, Qt::AscendingOrder);
+}
+
+void MainWindow::sortDescending()
+{
+ treeWidget->sortItems(0, Qt::DescendingOrder);
+}
+
+void MainWindow::updateMenus(QTreeWidgetItem *current)
+{
+ insertAction->setEnabled(current != 0);
+ removeAction->setEnabled(current != 0);
+}
+
+void MainWindow::updateSortItems()
+{
+ ascendingAction->setEnabled(!autoSortAction->isChecked());
+ descendingAction->setEnabled(!autoSortAction->isChecked());
+
+ treeWidget->setSortingEnabled(autoSortAction->isChecked());
+}