diff options
author | Thiago Macieira <thiago.macieira@intel.com> | 2018-01-19 15:30:24 -0800 |
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committer | Thiago Macieira <thiago.macieira@intel.com> | 2018-07-04 03:03:47 +0000 |
commit | 9be00330af639043961f4d7b8ee1d3511e787931 (patch) | |
tree | 0d20ddfb74b2bee20863bad5b6846f44b4bb69e4 /examples/corelib/serialization/convert/converter.h | |
parent | e3ed2281c0c891cf3b15c95f9f7cdae42e9f233a (diff) |
Examples: add an example that converts between different file formats
This example converts to and from:
- Binary JSON
- CBOR
- CBOR Diagnostic notation (output only)
- JSON
- Null (output only)
- QDataStream
- QVariant dump (output only)
- Text
- XML
Change-Id: Ibab69e0efefb40bdbf94fffd150b59f8c0da3174
Reviewed-by: Allan Sandfeld Jensen <allan.jensen@qt.io>
Diffstat (limited to 'examples/corelib/serialization/convert/converter.h')
-rw-r--r-- | examples/corelib/serialization/convert/converter.h | 103 |
1 files changed, 103 insertions, 0 deletions
diff --git a/examples/corelib/serialization/convert/converter.h b/examples/corelib/serialization/convert/converter.h new file mode 100644 index 0000000000..82e1fa1cb3 --- /dev/null +++ b/examples/corelib/serialization/convert/converter.h @@ -0,0 +1,103 @@ +/**************************************************************************** +** +** Copyright (C) 2018 Intel Corporation. +** Contact: https://www.qt.io/licensing/ +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:BSD$ +** 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." +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef CONVERTER_H +#define CONVERTER_H + +#include <QIODevice> +#include <QPair> +#include <QVariant> +#include <QVector> + +class VariantOrderedMap : public QVector<QPair<QVariant, QVariant>> +{ +public: + VariantOrderedMap() = default; + VariantOrderedMap(const QVariantMap &map) + { + reserve(map.size()); + for (auto it = map.begin(); it != map.end(); ++it) + append({it.key(), it.value()}); + } +}; +using Map = VariantOrderedMap; +Q_DECLARE_METATYPE(Map) + +class Converter +{ +protected: + Converter(); + +public: + static Converter *null; + + enum Direction { + In = 1, Out = 2, InOut = 3 + }; + + enum Option { + SupportsArbitraryMapKeys = 0x01 + }; + Q_DECLARE_FLAGS(Options, Option) + + virtual ~Converter() = 0; + + virtual QString name() = 0; + virtual Direction directions() = 0; + virtual Options outputOptions() = 0; + virtual const char *optionsHelp() = 0; + virtual bool probeFile(QIODevice *f) = 0; + virtual QVariant loadFile(QIODevice *f, Converter *&outputConverter) = 0; + virtual void saveFile(QIODevice *f, const QVariant &contents, const QStringList &options) = 0; +}; + +Q_DECLARE_OPERATORS_FOR_FLAGS(Converter::Options) + +#endif // CONVERTER_H |