QFtp...doesnt seems to work ....!!!

[salmanmanekia]

hey guys....i have written this piece of code for a QFtp application,but this doesnt seem to work....i dont know whr it goes wrong,but it makes a file with 0 byte.......pls,pls any help wud be appreciated....

/* main method */
 
#include <QtGui/QApplication>
#include <QApplication>
#include "exftp.h"
 
int main(int argc, char *argv[])
{
    QApplication a(argc, argv);
    exFtp w;
 
    w.show();
    //a.connect(&a, SIGNAL(lastWindowClosed()), &a, SLOT(quit()));
    return a.exec();
}

/* main method */

#include <QtGui/QApplication>
#include <QApplication>
#include "exftp.h"

int main(int argc, char *argv[])
{
    QApplication a(argc, argv);
    exFtp w;
    
    w.show();
    //a.connect(&a, SIGNAL(lastWindowClosed()), &a, SLOT(quit()));
    return a.exec();
}

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/* .h File */
 
#ifndef EXFTP_H
#define EXFTP_H
 
#include <QtGui/QMainWindow>
#include <QFtp>
#include <QUrl>
#include <QFile>
#include <QDialog>
#include <QString>
class QLineEdit;
class QLabel;
class QPushButton;
class QDialogButtonBox;
class QProgressDialog;
//#include "ui_exftp.h"
 
class exFtp : public QDialog
{
    Q_OBJECT
 
public:
    exFtp();
    ~exFtp();
private:
    QFtp *ftp;
    QFile file;
    QUrl *urlAdd;
    QString localFileName;
    QLineEdit *ftpServerLineEdit;
    QLabel *ftpServerLabel;
    QLabel *statusLabel;
    QPushButton *downloadButton;
    QPushButton *quitButton;
    QDialogButtonBox *buttonBox;
    QProgressDialog *progressDialog;
    //Ui::exFtpClass ui;
private slots:
    bool downloadStarted();
    void EnabledButton(const QString&);
    void ftpDone(bool);
    void On_CommandFinished();
};
 
#endif // EXFTP_H

/* .h File */

#ifndef EXFTP_H
#define EXFTP_H

#include <QtGui/QMainWindow>
#include <QFtp>
#include <QUrl>
#include <QFile>
#include <QDialog>
#include <QString>
class QLineEdit;
class QLabel;
class QPushButton;
class QDialogButtonBox;
class QProgressDialog;
//#include "ui_exftp.h"

class exFtp : public QDialog
{
    Q_OBJECT

public:
    exFtp();
    ~exFtp();
private:
    QFtp *ftp;
    QFile file;
    QUrl *urlAdd;
    QString localFileName;
    QLineEdit *ftpServerLineEdit;
    QLabel *ftpServerLabel;
    QLabel *statusLabel;
    QPushButton *downloadButton;
    QPushButton *quitButton;
    QDialogButtonBox *buttonBox;
    QProgressDialog *progressDialog;
    //Ui::exFtpClass ui;
private slots:
    bool downloadStarted();
    void EnabledButton(const QString&);
    void ftpDone(bool);
    void On_CommandFinished();
};

#endif // EXFTP_H

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/* .cpp file */
 
#include <QtGui>
#include "exftp.h"
 
exFtp::exFtp()
    {
    ftpServerLabel = new QLabel("FTP");
    ftpServerLineEdit = new QLineEdit();
    statusLabel = new QLabel();
    downloadButton = new QPushButton("Download");
    downloadButton->setEnabled(false);
    quitButton = new QPushButton("Quit");
    buttonBox = new QDialogButtonBox;
        buttonBox->addButton(downloadButton,QDialogButtonBox::ActionRole);
        buttonBox->addButton(quitButton,QDialogButtonBox::RejectRole);
    progressDialog = new QProgressDialog(this);
    QHBoxLayout *topLayout = new QHBoxLayout;
    topLayout->addWidget(ftpServerLabel);
    topLayout->addWidget(ftpServerLineEdit);
    QVBoxLayout *mainLayout = new QVBoxLayout;
    mainLayout->addLayout(topLayout);
    mainLayout->addWidget(statusLabel);
    mainLayout->addWidget(buttonBox);
    setLayout(mainLayout);
    ftp = new QFtp(this);
    connect(ftpServerLineEdit,SIGNAL(textEdited(const QString&)),this,SLOT(EnabledButton(const QString&)));
//    connect(ftpServerLineEdit,SIGNAL(textEdited(const QString&)),this,SLOT(QUrl(const QString&)))
    connect(downloadButton,SIGNAL(clicked()),this,SLOT(downloadStarted()));
    connect(ftp,SIGNAL(done(bool)),this,SLOT(ftpDone(bool)));    
    connect(ftp,SIGNAL(commandFinished(int,bool)),this,SLOT(On_CommandFinished()));
    connect(quitButton,SIGNAL(clicked()),this,SLOT(accept()));
    //ui.setupUi(this);
}
void exFtp::EnabledButton(const QString& Url)
{
    downloadButton->setEnabled(!(Url.isEmpty()));
    urlAdd = new QUrl();
    urlAdd->setUrl(Url);
    urlAdd->setPath(Url);
    QFileInfo fi(Url);
    localFileName = fi.fileName();
    if(localFileName.isEmpty())
        localFileName = "exFtp.out";
 
}
void exFtp::On_CommandFinished()
{
    file.close();
}
bool exFtp::downloadStarted()
{
    file.setFileName(localFileName);
//file.open(QIODevice::WriteOnly);
    if(!file.open(QIODevice::WriteOnly))
    {
        statusLabel->setEnabled(true);
        statusLabel->setText(tr("File at %1 cannot be Open/Accesed").arg(localFileName));
        return false;
    }
    ftp->connectToHost(urlAdd->host(),urlAdd->port(21));
    ftp->login();
    ftp->get(urlAdd->path(),&file);
    //ftp->close();
    return true;
}
void exFtp::ftpDone(bool fileDone)
{
    if(fileDone)
        statusLabel->setText("DownLoaded");
    else
        statusLabel->setText("no,..!!");
}
 
exFtp::~exFtp()
{
 
}

/* .cpp file */

#include <QtGui>
#include "exftp.h"

exFtp::exFtp()
    {
    ftpServerLabel = new QLabel("FTP");
    ftpServerLineEdit = new QLineEdit();
    statusLabel = new QLabel();
    downloadButton = new QPushButton("Download");
    downloadButton->setEnabled(false);
    quitButton = new QPushButton("Quit");
    buttonBox = new QDialogButtonBox;
        buttonBox->addButton(downloadButton,QDialogButtonBox::ActionRole);
        buttonBox->addButton(quitButton,QDialogButtonBox::RejectRole);
    progressDialog = new QProgressDialog(this);
    QHBoxLayout *topLayout = new QHBoxLayout;
    topLayout->addWidget(ftpServerLabel);
    topLayout->addWidget(ftpServerLineEdit);
    QVBoxLayout *mainLayout = new QVBoxLayout;
    mainLayout->addLayout(topLayout);
    mainLayout->addWidget(statusLabel);
    mainLayout->addWidget(buttonBox);
    setLayout(mainLayout);
    ftp = new QFtp(this);
    connect(ftpServerLineEdit,SIGNAL(textEdited(const QString&)),this,SLOT(EnabledButton(const QString&)));
//    connect(ftpServerLineEdit,SIGNAL(textEdited(const QString&)),this,SLOT(QUrl(const QString&)))
    connect(downloadButton,SIGNAL(clicked()),this,SLOT(downloadStarted()));
    connect(ftp,SIGNAL(done(bool)),this,SLOT(ftpDone(bool)));    
    connect(ftp,SIGNAL(commandFinished(int,bool)),this,SLOT(On_CommandFinished()));
    connect(quitButton,SIGNAL(clicked()),this,SLOT(accept()));
    //ui.setupUi(this);
}
void exFtp::EnabledButton(const QString& Url)
{
    downloadButton->setEnabled(!(Url.isEmpty()));
    urlAdd = new QUrl();
    urlAdd->setUrl(Url);
    urlAdd->setPath(Url);
    QFileInfo fi(Url);
    localFileName = fi.fileName();
    if(localFileName.isEmpty())
        localFileName = "exFtp.out";

}
void exFtp::On_CommandFinished()
{
    file.close();
}
bool exFtp::downloadStarted()
{
    file.setFileName(localFileName);
//file.open(QIODevice::WriteOnly);
    if(!file.open(QIODevice::WriteOnly))
    {
        statusLabel->setEnabled(true);
        statusLabel->setText(tr("File at %1 cannot be Open/Accesed").arg(localFileName));
        return false;
    }
    ftp->connectToHost(urlAdd->host(),urlAdd->port(21));
    ftp->login();
    ftp->get(urlAdd->path(),&file);
    //ftp->close();
    return true;
}
void exFtp::ftpDone(bool fileDone)
{
    if(fileDone)
        statusLabel->setText("DownLoaded");
    else
        statusLabel->setText("no,..!!");
}

exFtp::~exFtp()
{

}

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