Is it possible to show a QFileDialog where the user can select a file or a directory, either one?
QFileDialog::getOpenFileName()
accepts only files, while QFileDialog::getExistingDirectory()
is directories-only, but I need to show a file dialog that can accept both a file or a directory (it makes sense for my program). QFileDialog::Options
didn't have anything promising.
QFileDialog currently does not support this. I think the main problem for you here is that the FileMode is not a Q_FLAGS and the values are not power of 2, either, and so, you cannot write this to solve this issue.
setFileMode(QFileDialog::Directory|QFileDialog::ExistingFiles)
To solve this, you would need quite a bit of fiddling, e.g.:
Override the open button click operation.
Get the "treeview" indices properly for both files and directories.
My attempt below demonstrates the former, but I did not really go as far as solving the second because that seems to involve some more fiddling with the selection model.
#include <QFileDialog>
#include <QApplication>
#include <QWidget>
#include <QTreeWidget>
#include <QPushButton>
#include <QStringList>
#include <QModelIndex>
#include <QDir>
#include <QDebug>
class FileDialog : public QFileDialog
{
Q_OBJECT
public:
explicit FileDialog(QWidget *parent = Q_NULLPTR)
: QFileDialog(parent)
{
setOption(QFileDialog::DontUseNativeDialog);
setFileMode(QFileDialog::Directory);
// setFileMode(QFileDialog::ExistingFiles);
for (auto *pushButton : findChildren<QPushButton*>()) {
qDebug() << pushButton->text();
if (pushButton->text() == "&Open" || pushButton->text() == "&Choose") {
openButton = pushButton;
break;
}
}
disconnect(openButton, SIGNAL(clicked(bool)));
connect(openButton, &QPushButton::clicked, this, &FileDialog::openClicked);
treeView = findChild<QTreeView*>();
}
QStringList selected() const
{
return selectedFilePaths;
}
public slots:
void openClicked()
{
selectedFilePaths.clear();
qDebug() << treeView->selectionModel()->selection();
for (const auto& modelIndex : treeView->selectionModel()->selectedIndexes()) {
qDebug() << modelIndex.column();
if (modelIndex.column() == 0)
selectedFilePaths.append(directory().absolutePath() + modelIndex.data().toString());
}
emit filesSelected(selectedFilePaths);
hide();
qDebug() << selectedFilePaths;
}
private:
QTreeView *treeView;
QPushButton *openButton;
QStringList selectedFilePaths;
};
#include "main.moc"
int main(int argc, char **argv)
{
QApplication application(argc, argv);
FileDialog fileDialog;
fileDialog.show();
return application.exec();
}
TEMPLATE = app
TARGET = main
QT += widgets
CONFIG += c++11
SOURCES += main.cpp
qmake && make && ./main