How to iterate all sub-folders of a directory?

xalam

Hi, I am showing file same in tree view using QDirModel. The user can select a given folder and my application need to traverse all its subfolders (only one level). I haven't been able to figure out how but here is where I am stuck.

@// I can get the index of the current selected folder
QModelIndex index = ui->treeView->currentIndex();@

Now else where I see I could use something like this:

@ QDirIterator it("/etc", QDirIterator::Subdirectories);
while (it.hasNext()) {
qDebug() << it.next();

 // /etc/.
 // /etc/..
 // /etc/X11
 // /etc/X11/fs
 // ...

}@

The problem is how to get the currently selected for as QDir object from tree and list view and feed it to the 2nd block of code?

Initially I used QFileSystemModel which I know is recommended now instead of QDir but it proved more complicated. I would prefer solution with QFileSystemModel but QDirModel is also acceptable.

SGaist

Hi,

Do you mean "QFileSystemModel::filePath":http://doc.qt.io/qt-5/qfilesystemmodel.html#filePath ?

andre

You can get the directory from the special roles the QFileSystemModel supplies for you:
@
enum Roles { FileIconRole, FilePathRole, FileNameRole, FilePermissions }
@

Sound to me like the FilePathRole provides a complete path. Using QFileInfo, you can easily figure out if the current item is a file or a dir, and what the path to use is.

xalam

Sorry guys, I was not thinking right. I figured it all out. Here is what I and I did use QFileSystemModel.

@void MainWindow::on_actionExport_files_triggered()
{
QModelIndex index = ui->treeView->currentIndex();

QString rootDir = dirModel->filePath( selectedIndex );

QDirIterator iter( rootDir, QDir::Dirs | QDir::NoDotAndDotDot);

while(iter.hasNext() )
{
    qDebug() << iter.next();
}

........
}@