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diff --git a/sources/pyside2/doc/codesnippets/doc/src/snippets/signalmapper/filereader.cpp b/sources/pyside2/doc/codesnippets/doc/src/snippets/signalmapper/filereader.cpp
deleted file mode 100644
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--- a/sources/pyside2/doc/codesnippets/doc/src/snippets/signalmapper/filereader.cpp
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@@ -1,109 +0,0 @@
-/****************************************************************************
-**
-** Copyright (C) 2016 The Qt Company Ltd.
-** Contact: https://www.qt.io/licensing/
-**
-** This file is part of the documentation of Qt for Python.
-**
-** $QT_BEGIN_LICENSE:BSD$
-** Commercial License Usage
-** Licensees holding valid commercial Qt licenses may use this file in
-** accordance with the commercial license agreement provided with the
-** Software or, alternatively, in accordance with the terms contained in
-** a written agreement between you and The Qt Company. For licensing terms
-** and conditions see https://www.qt.io/terms-conditions. For further
-** information use the contact form at https://www.qt.io/contact-us.
-**
-** BSD License Usage
-** Alternatively, 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 The Qt Company Ltd 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 <QtWidgets>
-#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());
-}
-