--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/doc/src/snippets/signalmapper/filereader.cpp	Mon Jan 11 14:00:40 2010 +0000
@@ -0,0 +1,100 @@
+/****************************************************************************
+**
+** 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 config.tests 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 "filereader.h"
+
+
+FileReader::FileReader(QWidget *parent)
+    : QWidget(parent)
+{
+    textEdit = new QTextEdit;
+
+    taxFileButton = new QPushButton("Tax File");
+    accountFileButton = new QPushButton("Accounts File");
+    reportFileButton = new QPushButton("Report File");
+
+//! [0]
+    signalMapper = new QSignalMapper(this);
+    signalMapper->setMapping(taxFileButton, QString("taxfile.txt"));
+    signalMapper->setMapping(accountFileButton, QString("accountsfile.txt"));
+    signalMapper->setMapping(reportFileButton, QString("reportfile.txt"));
+
+    connect(taxFileButton, SIGNAL(clicked()),
+        signalMapper, SLOT (map()));
+    connect(accountFileButton, SIGNAL(clicked()),
+        signalMapper, SLOT (map()));
+    connect(reportFileButton, SIGNAL(clicked()),
+        signalMapper, SLOT (map()));
+//! [0]
+
+//! [1]
+    connect(signalMapper, SIGNAL(mapped(const QString &)),
+        this, SLOT(readFile(const QString &)));
+//! [1]
+
+    QHBoxLayout *buttonLayout = new QHBoxLayout;
+    buttonLayout->addWidget(taxFileButton);
+    buttonLayout->addWidget(accountFileButton);
+    buttonLayout->addWidget(reportFileButton);
+
+    QVBoxLayout *mainLayout = new QVBoxLayout;
+    mainLayout->addWidget(textEdit);
+    mainLayout->addLayout(buttonLayout);
+
+    setLayout(mainLayout);
+}
+
+void FileReader::readFile(const QString &filename)
+{
+    QFile file(filename);
+    
+    if (!file.open(QIODevice::ReadOnly)) {
+        QMessageBox::information(this, tr("Unable to open file"),
+            file.errorString());
+        return;
+    }
+
+
+    QTextStream in(&file);
+    textEdit->setPlainText(in.readAll());
+}
+