1 #ifndef DATABROWSER_H

     2 #define DATABROWSER_H

     3 

     4 #include <QTextBrowser>

     5 #include <QSet>

     6 

     7 class QNetworkAccessManager;

     8 

     9 class DataBrowser : public QTextBrowser

    10 {

    11     Q_OBJECT

    12 public:

    13     explicit DataBrowser(QWidget *parent = 0);

    14 

    15 signals:

    16 

    17 public slots:

    18 

    19 private:

    20     QNetworkAccessManager *manager;

    21     

    22     // hash and set of QString instead of QUrl to support Qt versions 

    23     // older than 4.7 (those have no support for qHash(const QUrl &))

    24     QHash<QString, QByteArray> resources;

    25     QSet<QString> requestedResources;

    26 

    27     QVariant loadResource(int type, const QUrl & name);

    28 

    29 private slots:

    30     void resourceDownloaded();

    31 };

    32 

    33 #endif // DATABROWSER_H