Dir View Example
The Dir View example shows a tree view of the local file system. It uses the QFileSystemModel class to provide file and directory information.

The example supports a number of command line options. These options include:
- Application description
- -help option
- -version option
- if the optionc {-c} is specified, the application will not use custom directory options
QCommandLineParser parser;
parser.setApplicationDescription("Qt Dir View Example");
parser.addHelpOption();
parser.addVersionOption();
QCommandLineOption dontUseCustomDirectoryIconsOption("c", "Set QFileIconProvider::DontUseCustomDirectoryIcons");
parser.addOption(dontUseCustomDirectoryIconsOption);
parser.addPositionalArgument("directory", "The directory to start in.");
parser.process(app);
const QString rootPath = parser.positionalArguments().isEmpty()
Declares a QFileSystemModel as data model for viewing the local file system. QFileSystem works with a cache, that is, it is updated continually with QFileSystemWatcher on that folder.
QFileSystemModel model;
model.setRootPath("");
if (parser.isSet(dontUseCustomDirectoryIconsOption))
model.iconProvider()->setOptions(QFileIconProvider::DontUseCustomDirectoryIcons);
QTreeView tree;
tree.setModel(&model);
Creates a model/view implementation called tree for viewing the filesystem.
tree.setAnimated(false);
tree.setIndentation(20);
tree.setSortingEnabled(true);
const QSize availableSize = QApplication::desktop()->availableGeometry(&tree).size();
tree.resize(availableSize / 2);
tree.setColumnWidth(0, tree.width() / 3);
tree.setWindowTitle(QObject::tr("Dir View"));
Sets some formatting options for tree.
Files: