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+/****************************************************************************
+**
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:BSD$
+** 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 Nokia Corporation and its Subsidiary(-ies) 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 IMAGEANALYZER_H
+#define IMAGEANALYZER_H
+#include <QFutureWatcher>
+#include <QtGui>
+
+class QNetworkAccessManager;
+class QNetworkReply;
+class QNetworkDiskCache;
+
+//! [ 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