QStringList Sorting

[QbelcorT]

Hi,
I have a QStringList in which I am trying to sort before I insert into a QComboBox.
The names are "background1.jpg, background2.jpg... background15.jpg. or user1..userX.jpg
The sort applies the order as such:
background1.jpg
background10.jpg
background11.jpg..
background2.jpg..etc

I need the list sorted in this order.
background1.jpg
background2.jpg
background3.jpg
...background10.jpg
background11.jpg

I have read the QMap but I cannot understand how to apply the sorting method I am looking for. Can anyone suggest a method?

Here is my code, it will either get my background files from a USB drive (for copying) or from the local filesystem for selecting in a combobox.

QStringList getBackGroundFiles(int val)
{
	QDir dir;
	if (val == LOCAL)
		dir.setPath(BKGNDIMAGEPATHLOCAL);
	else
		dir.setPath(BACKIMAGEPATH);
	QStringList fileFilter,fileNames,names;
	fileFilter << "*.jpg" << "*.bmp";
	dir.setNameFilters(fileFilter);
	names << "user*" << "background*";
	fileNames  = dir.entryList(names,QDir::Files);
	fileNames.sort();
	return fileNames;
}

QStringList getBackGroundFiles(int val)
{
	QDir dir;
	if (val == LOCAL)
		dir.setPath(BKGNDIMAGEPATHLOCAL);
	else
		dir.setPath(BACKIMAGEPATH);
	QStringList fileFilter,fileNames,names;
	fileFilter << "*.jpg" << "*.bmp";
	dir.setNameFilters(fileFilter);
	names << "user*" << "background*";
	fileNames  = dir.entryList(names,QDir::Files);
	fileNames.sort();
	return fileNames;
}

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