[Qt-interest] how to copy the content from one folder to another folder

[Prashanth Udupa]

I am not sure if Qt has a straight forward function for this. You will need to use a recursive function.. (note I have not tested the function, just wrote it for demonstrating the "how" part. Perhaps you can test it and mail your results to the list?)

bool copyDirectory(const QDir& source, const QDir& dest)
{
    QFileInfoList list = source.entryInfoList(QDir::Files|QDir::Dirs|QDir::NoDotAndDotDot);
    for(int i=0; i<list.count(); i++)
    {
        QFileInfo fi = list[i];
        if( fi.isFile() )
        {
            bool success = QFile::copy( fi.absoluteFilePath(), dest.absoluteFilePath(fi.fileName()) );
            if(!success)
                return false;
        }
        else
        {
            QDir s2 = source;
            QDir d2 = dest;

            bool success = d2.mkdir( fi.fileName() );
            if(!success)
                return false;

            success = s2.cd( fi.fileName() );
            if(!success)
                return false;

            success = copyDirectory( s2, d2 );
            if(!success)
                return false;
        }
    }

    return true;
}

Hope this helps. 

/ Prashanth



________________________________
From: Ravi_Kalepalli <Ravi_Kalepalli at Satyam.com>
To: "qt-interest at trolltech.com" <qt-interest at trolltech.com>
Sent: Wednesday, March 11, 2009 4:20:52 PM
Subject: [Qt-interest] how to copy the content from one folder to another folder


Hi All, 
 
I want to the files from one folder to another folder using QT API’s.
 Can anybody please help how to proceed? 
 
QString pic = QFileDialog::getOpenFileName(this,tr("Open Image"), "/C/Data/Images", tr("Image Files (*.png *.jpg *.bmp)"));
 
I am able to get string of the user selected file in pic. But I am not able to copy another folder(ex: “/C/Data/Pictures” )
 
Or is there any other approach instead of QFileDialog?
Please help me.
 
Thanks and Regards
 
RaviKalepalli
Telephone: 080-66577808
Mobile: 9880724688
 
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