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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
#ifndef IMAGEANALYZER_H
#define IMAGEANALYZER_H
#include <QFutureWatcher>
#include <QtWidgets>
QT_BEGIN_NAMESPACE
class QNetworkAccessManager;
class QNetworkReply;
class QNetworkDiskCache;
QT_END_NAMESPACE
//! [ ImageAnalyzer - public interface ]
class ImageAnalyzer : public QObject
{
Q_OBJECT
public:
ImageAnalyzer(QNetworkDiskCache * netcache, QObject * parent=0);
QRgb lastResults();
float lastRed();
float lastGreen();
float lastBlue();
bool isBusy();
Q_PROPERTY(bool busy READ isBusy);
Q_PROPERTY(float red READ lastRed);
Q_PROPERTY(float green READ lastGreen);
Q_PROPERTY(float blue READ lastBlue);
~ImageAnalyzer();
public slots:
/*! initiates analysis of all the urls in the list */
void startAnalysis(const QStringList & urls);
signals:
void finishedAnalysis();
void updateProgress(int completed, int total);
//! [ ImageAnalyzer - public interface ]
private slots:
void handleReply(QNetworkReply*);
void doneProcessing();
void progressStatus(int);
private:
QRgb processImages();
void fetchURLs();
void queueImage(QImage img);
//! [ ImageAnalyzer - private members ]
private:
QNetworkAccessManager* m_network;
QNetworkDiskCache* m_cache;
QStringList m_URLQueue;
QList<QImage> m_imageQueue;
int m_outstandingFetches;
QFutureWatcher<QRgb> * m_watcher;
//! [ ImageAnalyzer - private members ]
};
QRgb averageRGB(const QImage &img);
#endif
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