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Mastering Qt  5

You're reading from   Mastering Qt 5 Create stunning cross-platform applications using C++ with Qt Widgets and QML with Qt Quick

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Product type Paperback
Published in Aug 2018
Publisher Packt
ISBN-13 9781788995399
Length 534 pages
Edition 2nd Edition
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Authors (2):
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Robin Penea Robin Penea
Author Profile Icon Robin Penea
Robin Penea
Guillaume Lazar Guillaume Lazar
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Guillaume Lazar
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Table of Contents (16) Chapters Close

Preface 1. Get Your Qt Feet Wet FREE CHAPTER 2. Discovering qmake Secrets 3. Dividing Your Project and Ruling Your Code 4. Conquering the Desktop UI 5. Dominating the Mobile UI 6. Even Qt Deserves a Slice of Raspberry Pi 7. Third-Party Libraries without a Headache 8. Animations - Its Alive, Alive! 9. Keeping Your Sanity with Multithreading 10. Need IPC? Get Your Minions to Work 11. Having Fun with Multimedia and Serialization 12. You Shall (Not) Pass with QTest 13. All Packed and Ready to Deploy 14. Qt Hat Tips and Tricks 15. Other Books You May Enjoy

Serializing objects in binary format

The XML serialization is fully functional! We can now switch to the last type of serialization covered in this chapter.

Binary serialization is easier because Qt provides a direct way to do it. Create a BinarySerializer class that inherits from Serializer. The header is common; we only have the override functions save() and load(). Here is the implementation of the save() function:

void BinarySerializer::save(const Serializable& serializable, 
    const QString& filepath, const QString& /*rootName*/) 
{ 
    QFile file(filepath); 
    file.open(QFile::WriteOnly); 
    QDataStream dataStream(&file); 
    dataStream << serializable.toVariant(); 
    file.close(); 
}

We hope you recognized the QDataStream class used in Chapter 10, Need IPC? Get Your Minions to Work. This time, we use this class to serialize binary data in...

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