Removing extension of a file name in Qt

Question

I'm using Qt to get a file name from the user:

QString fileName = QFileDialog::getOpenFileName(this,tr("Select an image file"),"d:\\",tr("Image files(*.tiff *.tif )")); 

It works, but I need the file name without its extension, is it possible in Qt?? whenn I try :

QString f = QFileInfo(fileName).fileName(); 

f is like "filename.tif", but I want it to be "filename".

Answer 1

QFileInfo has two functions for this:

QString QFileInfo::completeBaseName () const 

Returns file name with shortest extension removed (file.tar.gz -> file.tar)

QString QFileInfo::baseName () const 

Returns file name with longest extension removed (file.tar.gz -> file)

Answer 2

To cope with filenames containing multiple dots, look for the last one and take the substring until that one.

int lastPoint = fileName.lastIndexOf("."); QString fileNameNoExt = fileName.left(lastPoint); 

Of course this can (and should) be written as a helper function for reuse:

inline QString withoutExtension(const QString & fileName) {     return fileName.left(fileName.lastIndexOf(".")); }