qjmnet.cpp

基于扬创科技S3C2440开发板linux平台用qtopia开发的网络通信源代码

#include "qjmnet.h"
#include <qmessagebox.h>
//tony
#include <QtGui>
#include <QtNetwork>


QjmnetBase::QjmnetBase( QWidget *parent, Qt::WFlags f )
    : QWidget( parent, f )
{
    setupUi( this );
}

QjmnetBase::~QjmnetBase()
{
}

/* 
 *  Constructs a Example which is a child of 'parent', with the 
 *  name 'name' and widget flags set to 'f' 
 */
Qjmnet::Qjmnet( QWidget *parent, Qt::WFlags f )
    : QjmnetBase( parent, f )
{
    //tony
    m_portNum->setRange(1025,65535);
    m_portNum->setValue(4000);

    tcpSocket = new QTcpSocket(this);      //非常重要的一行代码

     connect(m_quitPb, SIGNAL(clicked()), this, SLOT(goodBye()));
     connect(m_aboutPb, SIGNAL(clicked()), this, SLOT(showAboutMsg()));
     connect(m_ipaddrLe, SIGNAL(textChanged(const QString &)), this, SLOT(enableConnectButton()));  //IP地址栏有变化就发射信号
     connect(m_portNum, SIGNAL(textChanged(const QString &)), this, SLOT(enableConnectButton()));
     connect(m_inputLe, SIGNAL(textChanged(const QString &)), this, SLOT(enableSendMessage()));
     connect(m_clearPb, SIGNAL(clicked()), m_output_textEdit, SLOT(clear()));     //清除输出框

  //下面为socket口连接代码
     connect(tcpSocket, SIGNAL(readyRead()), this, SLOT(readServerData()));       //从服务器接受接受消息
      connect(tcpSocket, SIGNAL(disconnected()), this, SLOT(disconnectServer()));
     connect(m_connectPb, SIGNAL(clicked()), this, SLOT(connectServer()));
     connect(m_disconnectPb, SIGNAL(clicked()), this, SLOT(disconnectServer()));
     connect(m_inputSendPb, SIGNAL(clicked()), this, SLOT(hasConnected()));    //发送消息
    

}
/*  
 *  Destroys the object and frees any allocated resources
 */
Qjmnet::~Qjmnet()
{
    // no need to delete child widgets, Qt does it all for us
}

/*
 *  A simple slot... not very interesting.
 */
void Qjmnet::goodBye()
{
    close();
}

void Qjmnet::showAboutMsg()
{
	QMessageBox::about(this, tr("About QJMNET"), tr("<font color=#ff0000><strong>This is QJMNET 0.1</strong></font><br> (c)2004-2007 Brillian Network & Automation Interated System Co.,Ltd. <br>Author: Eric Qiu &lt;[e-mail]&gt;"));
}

///tony
QString Qjmnet::getHost()
{
  return m_ipaddrLe->text();
}

int Qjmnet::getDIPort()
{ 
  return m_portNum->value();
}

void Qjmnet::setDIPort(int port)
{
  m_portNum->setValue(port);
}
///////////////////////////////////////////////////////////////////
void Qjmnet::enableConnectButton()     //容许连接按钮
{
      m_connectPb->setEnabled(!m_ipaddrLe->text().isEmpty() && !m_portNum->text().isEmpty());
}


void Qjmnet::enableSendMessage()       //允许发送消息
{
      m_inputSendPb->setEnabled(!m_inputLe->text().isEmpty());
}

void Qjmnet::connectServer()
{
 //   m_connectPb->setEnabled(false);
 //   m_disconnectPb->setEnabled(true);
    blockSize = 0;
    tcpSocket->abort();
    tcpSocket->connectToHost(getHost(),m_portNum->text().toInt());
    m_testLe->setText("has connected");
}

void Qjmnet::readServerData()
{
/*   char abc[1024];
   tcpSocket->read(abc,tcpSocket->bytesAvailable());
	m_output_textEdit->setText(abc);
*/
////////// /////////////////////////////////////////////////////////////////////
   QDataStream in(tcpSocket);
   in.setVersion(QDataStream::Qt_4_1);
   char abc[512];
   tcpSocket->read(abc,tcpSocket->bytesAvailable());
   //in  >> abc;
	m_output_textEdit->append(abc);



}

void Qjmnet::disconnectServer()
{
 //   m_disconnectPb->setEnabled(false);
 //   m_connectPb->setEnabled(true);
    m_testLe->setText("has disconnected");
    tcpSocket->disconnectFromHost();
}

void Qjmnet::hasConnected()
{
    
    m_testLe->setText("has connected");
  
///////////////////////发送数据
    QByteArray block;
    QDataStream out(&block,QIODevice::WriteOnly);
    out.setVersion(QDataStream::Qt_4_1);
 /*   QMessageBox::about(this, tr("test"), tr("<font color=#ff0000><strong>has run to here</strong></font><br> (c)2004-2007 tony usst.     <br>Author: tony tang &lt;[e-mail]>"));
*/
    QString text=m_inputLe->text();
    QByteArray msg = text.toUtf8();
  //  QByteArray data = "MESSAGE " + QByteArray::number(msg.size()) + " " + msg;
    tcpSocket->write(msg);

}

void Qjmnet::hasDisconnected()
{
   //qDebug()<<"Disconnected!";
    m_testLe->setText("has disconnected");
    m_output_textEdit->setText("byebye tony!disconnected!");
}