source: trunk/examples/webkit/imageanalyzer/imageanalyzer.h@ 1147

Last change on this file since 1147 was 846, checked in by Dmitry A. Kuminov, 14 years ago

trunk: Merged in qt 4.7.2 sources from branches/vendor/nokia/qt.

File size: 3.5 KB
Line 
1/****************************************************************************
2**
3** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
4** All rights reserved.
5** Contact: Nokia Corporation (qt-info@nokia.com)
6**
7** This file is part of the examples of the Qt Toolkit.
8**
9** $QT_BEGIN_LICENSE:BSD$
10** You may use this file under the terms of the BSD license as follows:
11**
12** "Redistribution and use in source and binary forms, with or without
13** modification, are permitted provided that the following conditions are
14** met:
15** * Redistributions of source code must retain the above copyright
16** notice, this list of conditions and the following disclaimer.
17** * Redistributions in binary form must reproduce the above copyright
18** notice, this list of conditions and the following disclaimer in
19** the documentation and/or other materials provided with the
20** distribution.
21** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
22** the names of its contributors may be used to endorse or promote
23** products derived from this software without specific prior written
24** permission.
25**
26** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
27** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
28** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
29** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
30** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
31** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
32** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
33** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
34** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
35** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
36** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
37** $QT_END_LICENSE$
38**
39****************************************************************************/
40
41
42#ifndef IMAGEANALYZER_H
43#define IMAGEANALYZER_H
44#include <QFutureWatcher>
45#include <QtGui>
46
47QT_FORWARD_DECLARE_CLASS(QNetworkAccessManager)
48QT_FORWARD_DECLARE_CLASS(QNetworkReply)
49QT_FORWARD_DECLARE_CLASS(QNetworkDiskCache)
50
51//! [ ImageAnalyzer - public interface ]
52class ImageAnalyzer : public QObject
53{
54 Q_OBJECT
55public:
56 ImageAnalyzer(QNetworkDiskCache * netcache, QObject * parent=0);
57
58 QRgb lastResults();
59 float lastRed();
60 float lastGreen();
61 float lastBlue();
62 bool isBusy();
63 Q_PROPERTY(bool busy READ isBusy);
64 Q_PROPERTY(float red READ lastRed);
65 Q_PROPERTY(float green READ lastGreen);
66 Q_PROPERTY(float blue READ lastBlue);
67 ~ImageAnalyzer();
68
69public slots:
70 /*! initiates analysis of all the urls in the list */
71 void startAnalysis(const QStringList & urls);
72
73signals:
74 void finishedAnalysis();
75 void updateProgress(int completed, int total);
76 //! [ ImageAnalyzer - public interface ]
77
78private slots:
79 void handleReply(QNetworkReply*);
80 void doneProcessing();
81 void progressStatus(int);
82
83private:
84 QRgb processImages();
85 void fetchURLs();
86 void queueImage(QImage img);
87
88 //! [ ImageAnalyzer - private members ]
89private:
90 QNetworkAccessManager* m_network;
91 QNetworkDiskCache* m_cache;
92 QStringList m_URLQueue;
93 QList<QImage> m_imageQueue;
94 int m_outstandingFetches;
95 QFutureWatcher<QRgb> * m_watcher;
96 //! [ ImageAnalyzer - private members ]
97};
98
99QRgb averageRGB(const QImage &img);
100
101#endif
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