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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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Toc

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

Using QThreadPool in MandelbrotCalculator

Now that our Job class is ready to be used, we need to create a class to manage the jobs. Please create a new class, MandelbrotCalculator. Let's see what we need in the MandelbrotCalculator.h file:

#include <QObject> 
#include <QSize> 
#include <QPointF> 
#include <QElapsedTimer> 
#include <QList> 
 
#include "JobResult.h" 
 
class Job; 
 
class MandelbrotCalculator : public QObject 
{ 
    Q_OBJECT 
public: 
    explicit MandelbrotCalculator(QObject *parent = 0); 
    void init(QSize imageSize); 
 
private: 
    QPointF mMoveOffset; 
    double mScaleFactor; 
    QSize mAreaSize; 
    int mIterationMax; 
    int mReceivedJobResults; 
    QList<JobResult> mJobResults; 
    QElapsedTimer mTimer; 
}; 

We have already discussed mMoveOffset, mScaleFactor, mAreaSize, and mIterationMax in the...

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