qt5base-lts/examples/widgets/itemviews/storageview/main.cpp

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** Copyright (C) 2016 Ivan Komissarov
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#include <QApplication>
#include <QShortcut>
#include <QTreeView>

#include "storagemodel.h"

int main(int argc, char *argv[])
{
    QApplication a(argc, argv);

    QTreeView view;
    view.resize(640, 480);
    view.setWindowTitle("Storage View");
    view.setSelectionBehavior(QAbstractItemView::SelectRows);

    StorageModel *model = new StorageModel(&view);
    model->refresh();
    QShortcut *refreshShortcut = new QShortcut(Qt::CTRL | Qt::Key_R, &view);
    QObject::connect(refreshShortcut, &QShortcut::activated, model, &StorageModel::refresh);
    view.setModel(model);

    int columnCount = view.model()->columnCount();
    for (int c = 0; c < columnCount; ++c)
        view.resizeColumnToContents(c);
    view.show();

    return a.exec();
}