sfsmainwindow.cpp

通过arm实现文件的上传

#include "sfsmainwindow.h"
#include <QtGui/QtGui>

sfsMainWindow::sfsMainWindow()
{
    createActions();
    createMenus();
    createCentralWidget();
    resize(240,320);
    setWindowTitle("User Manager");
    reload();
}

void sfsMainWindow::createActions()
{
    uploadFileAction = new QAction(tr("Upload"),this);
    downloadFileAction = new QAction(tr("Download"),this);
    reloadAction = new QAction(tr("Reload"),this);
    deleteAction = new QAction(tr("Delete"),this);
    renameAction = new QAction(tr("Rename"),this);
    exitAction = new QAction(tr("Exit"),this);
    aboutAction = new QAction(tr("About"),this);

    connect(downloadFileAction,SIGNAL(triggered()),this,SLOT(downloadFile()));
    connect(uploadFileAction,SIGNAL(triggered()),this,SLOT(uploadFile()));
    connect(reloadAction,SIGNAL(triggered()),this,SLOT(reload()));
    connect(deleteAction,SIGNAL(triggered()),this,SLOT(deleteFile()));
    connect(renameAction,SIGNAL(triggered()),this,SLOT(rename()));
    connect(exitAction,SIGNAL(triggered()), qApp, SLOT(quit()));
}

void sfsMainWindow::createMenus()
{
    fileMenu = menuBar()->addMenu(tr("File"));
    fileMenu->addAction(uploadFileAction);
    fileMenu->addAction(downloadFileAction);
    fileMenu->addAction(reloadAction);
    fileMenu->addAction(deleteAction);
    fileMenu->addAction(renameAction);
    fileMenu->addAction(exitAction);
    
    helpMenu = menuBar()->addMenu(tr("Help"));
    helpMenu->addAction(aboutAction);

}

void sfsMainWindow::createCentralWidget()
{
    tableWidget = new QTableWidget(this);
    connect(tableWidget,SIGNAL(itemClicked(QTableWidgetItem *)),this,SLOT(enableAction(QTableWidgetItem *)));
    setCentralWidget(tableWidget);
}

void sfsMainWindow::uploadFile()
{
    QString upfilepath;
    QString upfilename;
    int upStat=1;
    upfilepath = QFileDialog::getOpenFileName(this,tr("Select File"), "./", tr("All Files (*.*)"));
    QStringList path = upfilepath.split("/");

    upfilename = path[path.size()-1];
    if (upfilename.size()>19)
    {
        QMessageBox::warning(this, tr("Error!"),
                                          tr("File name is too long!"),
                                          QMessageBox::Cancel,
                                          QMessageBox::Ok);
    }
    else
    {
        for(int i=0;i<tableWidget->rowCount();i++)
        {
            if (upfilename == tableWidget->item(i,0)->text())
            {
                upStat = QMessageBox::warning(this, tr("File already exists"),
                                              tr("Would you like to replace it?"),
                                              QMessageBox::Cancel,
                                              QMessageBox::Ok);
            }
        }
        if (upStat != QMessageBox::Cancel && upfilepath != 0)
        {
            upfile(qPrintable(upfilename),qPrintable(upfilepath),upStat);
            reload();
        }
    }
}

void sfsMainWindow::downloadFile()
{
    QString downfilepath;
    QString downfilename ;


    downfilename =tableWidget->item(tableWidget->currentRow(),0)->text();
    downfilepath = QFileDialog::getExistingDirectory(this, tr("Open Directory"),
                                                     "./",QFileDialog::ShowDirsOnly
                                                     | QFileDialog::DontResolveSymlinks);

    if(downfilepath != 0)
        downfile(qPrintable(downfilename),qPrintable(downfilepath));
}

void sfsMainWindow::reload()
{
    listReload();
    disableAction();
    QFile file("liststring.dat");
    file.open((QIODevice::ReadOnly));
    QTextStream in(&file);
    QString liststring = in.readAll();
    QStringList stringlist = liststring.split("|");
    int listNum = 0;
    listNum = stringlist.size();
    tableWidget->setRowCount(listNum/3);
    tableWidget->setColumnCount(3);
    //初始化水平表头条目名及宽度
    QStringList headerLabel;
    headerLabel<<"FileName"<<"Size"<<"Uptime";
    tableWidget->setHorizontalHeaderLabels(headerLabel);
    tableWidget->setColumnWidth(0,90);
    tableWidget->setColumnWidth(1,55);
    tableWidget->setColumnWidth(2,75);
    int x=0;
    for(int i=0;i<listNum/3;i++)
    {
        for(int j=0;j<3;j++)
        {
            QTableWidgetItem *items = new QTableWidgetItem;
            items->setText(stringlist[x++]);
            tableWidget->setItem(i,j,items);
        }
    }

    file.remove();

}

void sfsMainWindow::deleteFile()
{
    QString deletefilename ;
    deletefilename =tableWidget->item(tableWidget->currentRow(),0)->text();
    deletefile(qPrintable(deletefilename));
    reload();
}

void sfsMainWindow::rename()
{
    QString oldname;
    QString newname;
    bool ok;
    oldname = tableWidget->item(tableWidget->currentRow(),0)->text();
    if (oldname != 0)
    {
        newname = QInputDialog::getText(this, tr("Rename File"),
                                          tr("Enter the new name:"), QLineEdit::Normal,
                                          oldname, &ok);
    }
    if (ok)
        renamefile(qPrintable(newname),qPrintable(oldname));
    
    reload();
}

void sfsMainWindow::enableAction(QTableWidgetItem *item)
{
    Q_UNUSED(item);
    downloadFileAction->setEnabled(true);
    deleteAction->setEnabled(true);
    renameAction->setEnabled(true);

}

void sfsMainWindow::disableAction()
{
    downloadFileAction->setEnabled(false);
    deleteAction->setEnabled(false);
    renameAction->setEnabled(false);

}