loginform.cpp

linux下的socket通信和c++

/****************************************************************************
** Form implementation generated from reading ui file 'loginForm.ui'
**
** Created by: The User Interface Compiler ($Id: qt/main.cpp   3.3.8   edited Jan 11 14:47 $)
**
** WARNING! All changes made in this file will be lost!
****************************************************************************/

#include "loginForm.h"

#include <qvariant.h>
#include <qlabel.h>
#include <qlineedit.h>
#include <qpushbutton.h>
#include <qlayout.h>
#include <qtooltip.h>
#include <qwhatsthis.h>
#include <qimage.h>
#include <qpixmap.h>

/*
 *  Constructs a loginForm as a child of 'parent', with the
 *  name 'name' and widget flags set to 'f'.
 *
 *  The dialog will by default be modeless, unless you set 'modal' to
 *  TRUE to construct a modal dialog.
 */
loginForm::loginForm(Socket &s, QWidget* parent, const char* name, bool modal, WFlags fl )
    : QDialog( parent, name, modal, fl ),sock(s)
{
    if ( !name )
	setName( "loginForm" );

    idlable = new QLabel( this, "idlable" );
    idlable->setGeometry( QRect( 40, 40, 30, 31 ) );

    pswdlable = new QLabel( this, "pswdlable" );
    pswdlable->setGeometry( QRect( 40, 110, 60, 31 ) );

    idTxt = new QLineEdit( this, "idTxt" );
    idTxt->setGeometry( QRect( 100, 40, 170, 30 ) );

    resetBtn = new QPushButton( this, "resetBtn" );
    resetBtn->setGeometry( QRect( 40, 170, 51, 41 ) );

    okBtn = new QPushButton( this, "okBtn" );
    okBtn->setGeometry( QRect( 130, 170, 60, 41 ) );

    quitBtn = new QPushButton( this, "quitBtn" );
    quitBtn->setGeometry( QRect( 230, 170, 51, 41 ) );

    pswdTxt = new QLineEdit( this, "pswdTxt" );
    pswdTxt->setGeometry( QRect( 100, 111, 170, 30 ) );
    pswdTxt->setEchoMode( QLineEdit::Password );
    languageChange();
    resize( QSize(391, 239).expandedTo(minimumSizeHint()) );
    clearWState( WState_Polished );
    // signals and slots connections
    connect( resetBtn, SIGNAL( clicked() ), idTxt, SLOT( clear() ) );
    connect( resetBtn, SIGNAL( clicked() ), pswdTxt, SLOT( clear() ) );
    connect( resetBtn, SIGNAL( clicked() ), idTxt, SLOT( setFocus() ) );
    
    connect( quitBtn, SIGNAL( clicked() ), this, SLOT( Quit() ) );
    connect( quitBtn, SIGNAL( clicked() ), this, SLOT( close() ) );
    
    connect( okBtn, SIGNAL( clicked() ), this, SLOT( GetTxt() ) );
    connect( this, SIGNAL( toSendId() ), this, SLOT( SendId() ) );
    connect( this, SIGNAL( toSendPswd() ), this, SLOT( SendPswd() ) );
    connect( this, SIGNAL( toGetSerMsg() ), this, SLOT( GetSerMsg() ) );
    
    connect( this, SIGNAL( toRetry() ), idTxt, SLOT( clear() ) );
    connect( this, SIGNAL( toRetry() ), pswdTxt, SLOT( clear() ) );
    connect( this, SIGNAL( toRetry() ), idTxt, SLOT( setFocus() ) );
    // tab order
    setTabOrder( idTxt, pswdTxt );
    setTabOrder( pswdTxt, okBtn );
    setTabOrder( okBtn, resetBtn );
    setTabOrder( resetBtn, quitBtn );
}

/*
 *  Destroys the object and frees any allocated resources
 */
loginForm::~loginForm()
{
    // no need to delete child widgets, Qt does it all for us
    if(fchat->IsQuited())
    {
    	 if(fchat)
    	 	delete fchat;
    	 fchat=NULL;
    }
}

/*
 *  Sets the strings of the subwidgets using the current
 *  language.
 */
void loginForm::languageChange()
{
    setCaption( tr( "Login" ) );
    idlable->setText( tr( "ID :" ) );
    pswdlable->setText( tr( "Password :" ) );
    resetBtn->setText( tr( "&Reset" ) );
    resetBtn->setAccel( QKeySequence( tr( "Alt+R" ) ) );
    okBtn->setText( tr( "&OK" ) );
    okBtn->setAccel( QKeySequence( tr( "Alt+O" ) ) );
    quitBtn->setText( tr( "&Quit" ) );
    quitBtn->setAccel( QKeySequence( tr( "Alt+Q" ) ) );
}

void loginForm::GetTxt()
{
   id=idTxt-> text();
   pswd=pswdTxt-> text();
   if(id!="")
   {
     emit
       toSendId();
   }    
}

void loginForm::SendId()
{
  sock.SendMsg(id);
  sleep(1);
  emit
  toSendPswd();
}

void loginForm::SendPswd()
{
  sock.SendMsg(pswd);
  sleep(1);
  emit
  toGetSerMsg();
}

void loginForm::GetSerMsg()
{
  char* msg=new char[15];
  msg=sock.GetMsg();
  msg[strlen(msg)+1]='\0';
  cout<<msg<<endl;
  
  if((strncmp(msg,"ok",2))==0)
  {
    cout<<"Login succeed\nClose loginform"<<endl;
    fchat=new chatForm(sock);
    if(fchat)
    {
    	cout<<"Welcome to chat room"<<endl;
    	fchat->setCaption( id );    
    	fchat->Show();
    	delete msg;
      msg=NULL;
    	this->close();
    }
  }
  else
  {
    QMessageBox::information( this, "Login",
       "ID or Password Error!\n"
       "Please check!" );
    delete msg;
    msg=NULL;
    emit
    toRetry();
  }
}

void loginForm::Quit()
{
  sock.SendMsg("quit");
  sock.CloseSocket();
  cout<<"Close socket"<<endl;
}