examples/tools/customcompleter/mainwindow.cpp
changeset 0 1918ee327afb
child 4 3b1da2848fc7
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/examples/tools/customcompleter/mainwindow.cpp	Mon Jan 11 14:00:40 2010 +0000
@@ -0,0 +1,118 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the examples 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 "mainwindow.h"
+#include "textedit.h"
+
+//! [0]
+MainWindow::MainWindow(QWidget *parent)
+    : QMainWindow(parent), completer(0)
+{
+    createMenu();
+
+    completingTextEdit = new TextEdit;
+    completer = new QCompleter(this);
+    completer->setModel(modelFromFile(":/resources/wordlist.txt"));
+    completer->setModelSorting(QCompleter::CaseInsensitivelySortedModel);
+    completer->setCaseSensitivity(Qt::CaseInsensitive);
+    completer->setWrapAround(false);
+    completingTextEdit->setCompleter(completer);
+
+    setCentralWidget(completingTextEdit);
+    resize(500, 300);
+    setWindowTitle(tr("Completer"));
+}
+//! [0]
+
+//! [1]
+void MainWindow::createMenu()
+{
+    QAction *exitAction = new QAction(tr("Exit"), this);
+    QAction *aboutAct = new QAction(tr("About"), this);
+    QAction *aboutQtAct = new QAction(tr("About Qt"), this);
+
+    connect(exitAction, SIGNAL(triggered()), qApp, SLOT(quit()));
+    connect(aboutAct, SIGNAL(triggered()), this, SLOT(about()));
+    connect(aboutQtAct, SIGNAL(triggered()), qApp, SLOT(aboutQt()));
+
+    QMenu* fileMenu = menuBar()->addMenu(tr("File"));
+    fileMenu->addAction(exitAction);
+
+    QMenu* helpMenu = menuBar()->addMenu(tr("About"));
+    helpMenu->addAction(aboutAct);
+    helpMenu->addAction(aboutQtAct);
+}
+//! [1]
+
+//! [2]
+QAbstractItemModel *MainWindow::modelFromFile(const QString& fileName)
+{
+    QFile file(fileName);
+    if (!file.open(QFile::ReadOnly))
+        return new QStringListModel(completer);
+
+#ifndef QT_NO_CURSOR
+    QApplication::setOverrideCursor(QCursor(Qt::WaitCursor));
+#endif
+    QStringList words;
+    
+    while (!file.atEnd()) {
+        QByteArray line = file.readLine();
+        if (!line.isEmpty())
+            words << line.trimmed();
+    }
+
+#ifndef QT_NO_CURSOR
+    QApplication::restoreOverrideCursor();
+#endif
+    return new QStringListModel(words, completer);
+}
+//! [2]
+
+//! [3]
+void MainWindow::about()
+{
+    QMessageBox::about(this, tr("About"), tr("This example demonstrates the "
+        "different features of the QCompleter class."));
+}
+//! [3]
+