mainwindow.cpp

#include <QWidget>
#include <QApplication>
#include <QFileDialog>
#include <QMessageBox>
#include <QCloseEvent>
#include <QDebug>
#include <QVBoxLayout>

#include "mainwindow.h"

MainWindow::MainWindow()
{
    QWidget *central = new QWidget;
    setCentralWidget(central);
    QVBoxLayout *v_layout = new QVBoxLayout(central);
    QHBoxLayout *root_layout = new QHBoxLayout();
    m_root_line = new QLineEdit;
    m_root_line->setReadOnly(true);
    m_root_edit = new QPushButton("Change");
    root_layout->addWidget(m_root_line);
    root_layout->addWidget(m_root_edit);

    m_show_hidden = new QCheckBox("Show hidden");

    m_tree = new QTreeView();
    m_copy_button = new QPushButton("Copy");

    v_layout->addLayout(root_layout);
    v_layout->addWidget(m_show_hidden);
    v_layout->addWidget(m_tree);
    v_layout->addWidget(m_copy_button);

    m_model = new MyFileSystemView;
    m_tree->setModel(m_model);
    setRoot(QDir::homePath());
    setShowHidden(false);

    connect(m_root_edit, SIGNAL(clicked()), this, SLOT(onChangeRoot()));
    connect(m_show_hidden, SIGNAL(stateChanged(int)), this, SLOT(onShowHidden(int)));

    resize(640, 480);
}

void MainWindow::onChangeRoot()
{
    QFileDialog *fd = new QFileDialog(this);
    fd->setFileMode(QFileDialog::Directory);
    fd->setOption(QFileDialog::ShowDirsOnly, true);
    fd->setDirectory(m_root_line->text());
    if(fd->exec())
    {
        QStringList filenames = fd->selectedFiles();
        setRoot(filenames[0]);
    }
}

void MainWindow::onShowHidden(int val)
{
    setShowHidden(val == Qt::Checked);
}

void MainWindow::setShowHidden(bool show)
{
    QDir::Filters filt = QDir::Dirs | QDir::AllDirs | QDir::Files | QDir::NoDotAndDotDot;
    if(show)
        filt |= QDir::Hidden;
    m_model->setFilter(filt);
}

void MainWindow::setRoot(const QString& path)
{
    m_root_line->setText(path);
    m_tree->setRootIndex(m_model->setRootPath(path));
}

void MainWindow::closeEvent(QCloseEvent *event)
{
    event->accept();
}