LibQQt/examples/QtSdkManager/qqthttpdownloadmanager.cpp

#include "qqthttpdownloadmanager.h"

QQtHttpDownloadManager::QQtHttpDownloadManager ( QObject* parent ) : QQtWebAccessManager ( parent )
{
    connect ( this, SIGNAL ( readyRead ( QQtWebAccessSession* ) ),
              this, SLOT ( replyReadyRead ( QQtWebAccessSession* ) ) );

    QFile file ( "/Users/abel/Develop/c2-test/aa" );
    file.open ( QFile::Truncate | QFile::WriteOnly );
    file.close();
}

void QQtHttpDownloadManager::sendRequest ( QString strUrl, QString filename )
{
    QQtHttpDownloadWebWorkSession* session = new QQtHttpDownloadWebWorkSession ( this );
    session->filename = filename;
    session->setWebAccessUrl ( strUrl );
    session->setWebAccessSessionName ( QUuid::createUuid().toString() );
    getWebAccessSessionManager()->addWebAccessSession ( session );
    sendGetRequest ( session );
}

QString QQtHttpDownloadManager::getSize ( qint64 bytes )
{
    QString strUnit;
    double dSize = bytes * 1.0;

    if ( dSize <= 0 )
    {
        dSize = 0.0;
    }
    else if ( dSize < 1024 )
    {
        strUnit = "Bytes";
    }
    else if ( dSize < 1024 * 1024 )
    {
        dSize /= 1024;
        strUnit = "KB";
    }
    else if ( dSize < 1024 * 1024 * 1024 )
    {
        dSize /= ( 1024 * 1024 );
        strUnit = "MB";
    }
    else
    {
        dSize /= ( 1024 * 1024 * 1024 );
        strUnit = "GB";
    }

    return QString ( "%1 %2" ).arg ( QString::number ( dSize, 'f', 2 ) ).arg ( strUnit );
}

QString QQtHttpDownloadManager::getSpeed ( double speed )
{
    QString strUnit;

    if ( speed <= 0 )
    {
        speed = 0;
        strUnit = "Bytes/S";
    }
    else if ( speed < 1024 )
    {
        strUnit = "Bytes/S";
    }
    else if ( speed < 1024 * 1024 )
    {
        speed /= 1024;
        strUnit = "KB/S";
    }
    else if ( speed < 1024 * 1024 * 1024 )
    {
        speed /= ( 1024 * 1024 );
        strUnit = "MB/S";
    }
    else
    {
        speed /= ( 1024 * 1024 * 1024 );
        strUnit = "GB/S";
    }

    QString strSpeed = QString::number ( speed, 'f', 2 );
    return QString ( "%1 %2" ).arg ( strSpeed ).arg ( strUnit );
}

QString QQtHttpDownloadManager::getElipsedTime ( int seconds )
{
    QString strValue;
    QString strSpacing ( " " );

    if ( seconds <= 0 )
    {
        strValue = QString ( "%1s" ).arg ( 0 );
    }
    else if ( seconds < 60 )
    {
        strValue = QString ( "%1s" ).arg ( seconds );
    }
    else if ( seconds < 60 * 60 )
    {
        int nMinute = seconds / 60;
        int nSecond = seconds - nMinute * 60;

        strValue = QString ( "%1m" ).arg ( nMinute );

        if ( nSecond > 0 )
            strValue += strSpacing + QString ( "%1s" ).arg ( nSecond );
    }
    else if ( seconds < 60 * 60 * 24 )
    {
        int nHour = seconds / ( 60 * 60 );
        int nMinute = ( seconds - nHour * 60 * 60 ) / 60;
        int nSecond = seconds - nHour * 60 * 60 - nMinute * 60;

        strValue = QString ( "%1h" ).arg ( nHour );

        if ( nMinute > 0 )
            strValue += strSpacing + QString ( "%1m" ).arg ( nMinute );

        if ( nSecond > 0 )
            strValue += strSpacing + QString ( "%1s" ).arg ( nSecond );
    }
    else
    {
        int nDay = seconds / ( 60 * 60 * 24 );
        int nHour = ( seconds - nDay * 60 * 60 * 24 ) / ( 60 * 60 );
        int nMinute = ( seconds - nDay * 60 * 60 * 24 - nHour * 60 * 60 ) / 60;
        int nSecond = seconds - nDay * 60 * 60 * 24 - nHour * 60 * 60 - nMinute * 60;

        strValue = QString ( "%1d" ).arg ( nDay );

        if ( nHour > 0 )
            strValue += strSpacing + QString ( "%1h" ).arg ( nHour );

        if ( nMinute > 0 )
            strValue += strSpacing + QString ( "%1m" ).arg ( nMinute );

        if ( nSecond > 0 )
            strValue += strSpacing + QString ( "%1s" ).arg ( nSecond );
    }

    return strValue;
}

void QQtHttpDownloadManager::replyReadyRead ( QQtWebAccessSession* session )
{
    pline() << session->getWebAccessReply()->url();
    QByteArray data = session->getWebAccessReply()->readAll();
    pline() << data;
    QFile file ( "/Users/abel/Develop/c2-test/aa" );
    file.open ( QFile::Append );
    file.write ( data );
    file.close();
}

void QQtHttpDownloadManager::updateDownloadProgress ( QQtWebAccessSession* session, qint64 bytesReceived,
                                                      qint64 bytesTotal )
{
}