哪位高手能把这个例子变成双方聊天的小程序，要支持中文，有文件传输功能就更好了！在线等。。。急用，后天就答辩了。非常感谢！
Implementation server (server.cpp):
/****************************************************************************
** $Id: qt/server.cpp 3.0.5 edited Oct 12 2001 $
**
** Copyright (C) 1992-2000 Trolltech AS. All rights reserved.
**
** This file is part of an example program for Qt. This example
** program may be used, distributed and modified without limitation.
**
*****************************************************************************/
#include <qsocket.h>
#include <qserversocket.h>
#include <qapplication.h>
#include <qvbox.h>
#include <qtextview.h>
#include <qlabel.h>
#include <qpushbutton.h>
#include <qtextstream.h>
#include <stdlib.h>
/*
The ClientSocket class provides a socket that is connected with a client.
For every client that connects to the server, the server creates a new
instance of this class.
*/
class ClientSocket : public QSocket
{
Q_OBJECT
public:
ClientSocket( int sock, QObject *parent=0, const char *name=0 ) :
QSocket( parent, name )
{
line = 0;
connect( this, SIGNAL(readyRead()), SLOT(readClient()) );
connect( this, SIGNAL(connectionClosed()), SLOT(connectionClosed()) );
setSocket( sock );
}
~ClientSocket()
{
}
private slots:
void readClient()
{
while ( canReadLine() ) {
QTextStream os( this );
os << line << ": " << readLine();
line++;
}
}
void connectionClosed()
{
delete this;
}
private:
int line;
};
/*
The SimpleServer class handles new connections to the server. For every
client that connects, it creates a new ClientSocket -- that instance is now
responsible for the communication with that client.
*/
class SimpleServer : public QServerSocket
{
Q_OBJECT
public:
SimpleServer( QObject* parent=0 ) :
QServerSocket( 4242, 1, parent )
{
if ( !ok() ) {
qWarning("Failed to bind to port 4242");
exit(1);
}
}
~SimpleServer()
{
}
void newConnection( int socket )
{
(void)new ClientSocket( socket, this );
emit newConnect();
}
signals:
void newConnect();
};
/*
The ServerInfo class provides a small GUI for the server. It also creates the
SimpleServer and as a result the server.
*/
class ServerInfo : public QVBox
{
Q_OBJECT
public:
ServerInfo()
{
SimpleServer *server = new SimpleServer( this );
QString itext = QString(
"This is a small server example.\n"
"Connect with the client now."
);
QLabel *lb = new QLabel( itext, this );
lb->setAlignment( AlignHCenter );
infoText = new QTextView( this );
QPushButton *quit = new QPushButton( "Quit" , this );
connect( server, SIGNAL(newConnect()), SLOT(newConnect()) );
connect( quit, SIGNAL(clicked()), qApp, SLOT(quit()) );
}
~ServerInfo()
{
}
private slots:
void newConnect()
{
infoText->append( "New connection\n" );
}
private:
QTextView *infoText;
};
int main( int argc, char** argv )
{
QApplication app( argc, argv );
ServerInfo info;
app.setMainWidget( &info );
info.show();
return app.exec();
}
#include "server.moc"
--------------------------------------------------------------------------------
Implementation client (client.cpp):
/****************************************************************************
** $Id: qt/client.cpp 3.0.5 edited Nov 5 2001 $
**
** Copyright (C) 1992-2000 Trolltech AS. All rights reserved.
**
** This file is part of an example program for Qt. This example
** program may be used, distributed and modified without limitation.
**
*****************************************************************************/
#include <qsocket.h>
#include <qapplication.h>
#include <qvbox.h>
#include <qhbox.h>
#include <qtextview.h>
#include <qlineedit.h>
#include <qlabel.h>
#include <qpushbutton.h>
#include <qtextstream.h>
class Client : public QVBox
{
Q_OBJECT
public:
Client( const QString &host, Q_UINT16 port )
{
// GUI layout
infoText = new QTextView( this );
QHBox *hb = new QHBox( this );
inputText = new QLineEdit( hb );
QPushButton *send = new QPushButton( tr("Send") , hb );
QPushButton *close = new QPushButton( tr("Close connection") , this );
QPushButton *quit = new QPushButton( tr("Quit") , this );
connect( send, SIGNAL(clicked()), SLOT(sendToServer()) );
connect( close, SIGNAL(clicked()), SLOT(closeConnection()) );
connect( quit, SIGNAL(clicked()), qApp, SLOT(quit()) );
// create the socket and connect various of its signals
socket = new QSocket( this );
connect( socket, SIGNAL(connected()),
SLOT(socketConnected()) );
connect( socket, SIGNAL(connectionClosed()),
SLOT(socketConnectionClosed()) );
connect( socket, SIGNAL(readyRead()),
SLOT(socketReadyRead()) );
connect( socket, SIGNAL(error(int)),
SLOT(socketError(int)) );
// connect to the server
infoText->append( tr("Trying to connect to the server\n") );
socket->connectToHost( host, port );
}
~Client()
{
}
private slots:
void closeConnection()
{
socket->close();
if ( socket->state() == QSocket::Closing ) {
// We have a delayed close.
connect( socket, SIGNAL(delayedCloseFinished()),
SLOT(socketClosed()) );
} else {
// The socket is closed.
socketClosed();
}
}
void sendToServer()
{
// write to the server
QTextStream os(socket);
os << inputText->text() << "\n";
inputText->setText( "" );
}
void socketReadyRead()
{
// read from the server
while ( socket->canReadLine() ) {
infoText->append( socket->readLine() );
}
}
void socketConnected()
{
infoText->append( tr("Connected to server\n") );
}
void socketConnectionClosed()
{
infoText->append( tr("Connection closed by the server\n") );
}
void socketClosed()
{
infoText->append( tr("Connection closed\n") );
}
void socketError( int e )
{
infoText->append( tr("Error number %1 occurred\n").arg(e) );
}
private:
QSocket *socket;
QTextView *infoText;
QLineEdit *inputText;
};
int main( int argc, char** argv )
{
QApplication app( argc, argv );
Client client( argc<2 ? "localhost" : argv[1], 4242 );
app.setMainWidget( &client );
client.show();
return app.exec();
}
#include "client.moc"
