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Diffstat (limited to 'sources/pyside2/doc/codesnippets/doc/src/snippets/file/file.cpp')
-rw-r--r-- | sources/pyside2/doc/codesnippets/doc/src/snippets/file/file.cpp | 130 |
1 files changed, 130 insertions, 0 deletions
diff --git a/sources/pyside2/doc/codesnippets/doc/src/snippets/file/file.cpp b/sources/pyside2/doc/codesnippets/doc/src/snippets/file/file.cpp new file mode 100644 index 000000000..e52117f84 --- /dev/null +++ b/sources/pyside2/doc/codesnippets/doc/src/snippets/file/file.cpp @@ -0,0 +1,130 @@ +/**************************************************************************** +** +** Copyright (C) 2016 The Qt Company Ltd. +** Contact: https://www.qt.io/licensing/ +** +** This file is part of the examples of PySide2. +** +** $QT_BEGIN_LICENSE:BSD$ +** 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 <QFile> +#include <QTextStream> + +static void process_line(const QByteArray &) +{ +} + +static void process_line(const QString &) +{ +} + +static void noStream_snippet() +{ +//! [0] + file = QFile("in.txt") + if not file.open(QIODevice.ReadOnly | QIODevice.Text): + return + + while not file.atEnd(): + line = file.readLine() # A QByteArray + process_line(line) +//! [0] +} + +static void readTextStream_snippet() +{ +//! [1] + file = QFile("in.txt") + if not file.open(QIODevice.ReadOnly | QIODevice.Text): + return + + in = QTextStream(file) + while not in.atEnd(): + line = in.readLine() # A QByteArray + process_line(line) +//! [1] +} + +static void writeTextStream_snippet() +{ +//! [2] + file = QFile("out.txt") + if not file.open(QIODevice.WriteOnly | QIODevice.Text): + return + + out = QTextStream(file) + out << "The magic number is: " << 49 << "\n" +//! [2] +} + +static void writeTextStream_snippet() +{ + QFile file("out.dat"); + if (!file.open(QIODevice.WriteOnly)) + return; + + QDataStream out(&file); + out << "The magic number is: " << 49 << "\n"; +} + +static void readRegularEmptyFile_snippet() +{ +//! [3] + file = QFile("/proc/modules") + if not file.open(QIODevice.ReadOnly | QIODevice.Text): + return + + in = QTextStream(file) + line = in.readLine() + while not line.isNull(): + process_line(line) + line = in.readLine() +//! [3] +} + +int main() +{ + lineByLine_snippet(); + writeStream_snippet(); +} |