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Reference Guide
QtMultiFileDialog.C File Reference

Detailed Description

This is a small ROOT macro to use Qt 3.3 class :QFileDialog See: https://doc.qt.io/archives/3.3/qfiledialog.html#getOpenFileNames

To use, invoke ACLiC from the ROOT prompt:

root [] .x QtMultiFileDialog.C++

To use it with no ACLiC, omit the trailing "++"

root [] .x QtMultiFileDialog.C

The QtMultiFileDialog creates TList of TObjString objects and returns its pointer.

The "QtFileDialog.C" macro provides the simplified version of the "QtMultiFileDialog.C"

Option: you can change the look and feel of the Qt file dialog ======= by providing the optional parameter "style": The number of the available styles is defined by your local Qt installation. Try: "windows", "motif", "kde", "platinum" etc

The full list of the Qt classes available from Cint is defined by by $ROOTSYS/cint/lib/qtclasses.h

All Qt classes can be used from ACLiC though.

# include <QApplication>
# include <QStyle>
# include <QFileDialog>
# include <QStringList>
# include <QString>
# include "TObjString.h"
# include "TList.h"
# include <string>
TList *QtMultiFileDialog(const char *style="") {
QStyle *saveStyle = 0;
if (!QString(style).isEmpty()) {
saveStyle = QApplication::style();
QApplication::setStyle(style);
}
TList *listOfNames = new TList();
QStringList files = QFileDialog::getOpenFileNames ();
QStringList::Iterator it = files.begin();
while ( it != files.end() ) {
std::string flnm = (*it).toStdString();
printf ("Next file selected: %s\n", flnm.c_str() );
// Convert QString to TObjString and add it to the output
listOfNames->Add(new TObjString(flnm.c_str()));
++it;
}
// Restore the style
if (saveStyle) QApplication::setStyle(saveStyle);
printf ("\nThe TList of the file names contains:");
printf ("\n-------------------------------------\n");
listOfNames->ls();
return listOfNames;
}
Author
Valeri Fine 23/03/2006

Definition in file QtMultiFileDialog.C.