QFileDialog to select files AND folders

The problem that i have i that QFileDialog doesnt seem to support choosing files or folders. FileMode flags dont have one that mixes both.


Is there any way to make a QFileDialog able to select files and folders?

FileMode::AnyFiles let you select a file, but if you choose a folder it opens it and shows you the files in it and FileMode::Directory only let you select folders. Since im doing a compressor i must allow the user to select files, folders, or both at the same time (multiple files and folders). Is there any other way that doesnt require craeting a new dialog from scratch?

thanks!

I tried to handle the same problem and I found a solution after searching in QT forums. The following is the codes that you could try:

Code:

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QFileDialog* _f_dlg = new QFileDialog(this);
  _f_dlg->setFileMode(QFileDialog::Directory);
  _f_dlg->setOption(QFileDialog::DontUseNativeDialog, true);
 
  // Try to select multiple files and directories at the same time in QFileDialog
  QListView *l = _f_dlg->findChild<QListView*>("listView");
  if (l) {
    l->setSelectionMode(QAbstractItemView::MultiSelection);
   }
  QTreeView *t = _f_dlg->findChild<QTreeView*>();
   if (t) {
     t->setSelectionMode(QAbstractItemView::MultiSelection);
    }
 
  int nMode = _f_dlg->exec();
  QStringList _fnames = _f_dlg->selectedFiles();

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Thanks! that's a nice workaround! i'll try it

This is the way i'm make it possible, by subclass QFileDialog, connect "Choose" button signal to yourself slot, and always setEnable(true) for "Choose" button

Code:

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//Subclass QFileDialog for customize allow select both file/folder
class FileDialog : public QFileDialog{
	Q_OBJECT
private:
	QListView *m_listView;
	QTreeView *m_treeView;
	QPushButton *m_btnOpen;
	QStringList m_selectedFiles;
 
public slots:
		void chooseClicked();
public:
	FileDialog();
	QStringList selectedFiles();
	bool eventFilter(QObject* watched, QEvent* event);
};

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Code:

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FileDialog::FileDialog() : QFileDialog()
{
	m_btnOpen = NULL;
	m_listView = NULL;
	m_treeView = NULL;
	m_selectedFiles.clear();
 
	this->setOption(QFileDialog::DontUseNativeDialog, true);
	this->setFileMode(QFileDialog::Directory);
	QList<QPushButton*> btns = this->findChildren<QPushButton*>();
	for (int i = 0; i < btns.size(); ++i) {
		QString text = btns[i]->text();
		if (text.toLower().contains("open") || text.toLower().contains("choose"))
		{
			m_btnOpen = btns[i];
			break;
		}
	}
 
	if (!m_btnOpen) return;
 
	m_btnOpen->installEventFilter(this);
	//connect(m_btnOpen, SIGNAL(changed()), this, SLOT(btnChanged()))
	m_btnOpen->disconnect(SIGNAL(clicked()));
	connect(m_btnOpen, SIGNAL(clicked()), this, SLOT(chooseClicked()));
 
 
	m_listView = findChild<QListView*>("listView");
	if (m_listView) {
		m_listView->setSelectionMode(QAbstractItemView::ExtendedSelection);
	}
 
	m_treeView = findChild<QTreeView*>();
	if (m_treeView) {
		m_treeView->setSelectionMode(QAbstractItemView::ExtendedSelection);
	}
 
}
 
bool FileDialog::eventFilter( QObject* watched, QEvent* event )
{
	QPushButton *btn = qobject_cast<QPushButton*>(watched);
	if (btn)
	{
		if(event->type()==QEvent::EnabledChange) {
			if (!btn->isEnabled()) {
				btn->setEnabled(true);
			}
		}
	}
 
	return QWidget::eventFilter(watched, event);
}
 
 
void FileDialog::chooseClicked()
{
	QModelIndexList indexList = m_listView->selectionModel()->selectedIndexes();
	foreach (QModelIndex index, indexList)
	{
		if (index.column()== 0)
		{
			m_selectedFiles.append(this->directory().absolutePath() + index.data().toString());
		}
	}
 
	QDialog::accept();
}
 
QStringList FileDialog::selectedFiles()
{
	return m_selectedFiles;
}

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