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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