#include "mainwindow.h"
#include "ui_mainwindow.h"
#include <QtGui>

MainWindow::MainWindow(QWidget *parent) :
    QMainWindow(parent),
    ui(new Ui::MainWindow)
{
    ui->setupUi(this);
}

MainWindow::~MainWindow()
{
    delete ui;
}

void MainWindow::on_actionTest_triggered()
{
    QString path = "..";

    QTreeWidgetItem * top = new QTreeWidgetItem;
    top->setText (0, path);
    ui->treeWidget->addTopLevelItem (top);

    display (top, path, 3);
}

void MainWindow::display(QTreeWidgetItem * top,
                         QString path,
                         int level)
{
    QDir dir (path);
    QFileInfoList list = dir.entryInfoList ();

    for (int i = 0; i < list.size(); i++)
    {
        QString n = list[i].fileName ();

        if (n != "." && n != "..")
        {
           QTreeWidgetItem * item = new QTreeWidgetItem;
           item->setText (0, n);
           top->addChild(item);
           if (list[i].isDir())
           {
               if (level > 0)
                  display (item, list[i].filePath(), level-1);
           }
           else
           {
               item->setText (1, QString::number (list[i].size ()));
           }
        }
    }
}