mailform.cpp

this soure code is easy! thank~

#include "mailform.h"
#include <qpushbutton.h>
#include <qtooltip.h>
#include <qfont.h>
#include <qtable.h>
#include <qprogressbar.h>
#include <qfile.h>
#include <qstring.h>
#include <qfile.h>
#include <qtextstream.h>
#include <qprocess.h>
#include <qsocket.h>
#include <qlayout.h>

#define FONT_SIZE 10

static int j=0;
//static int amountOfMail;
//static QString state;
//static int myi=0;
//static bool flag;
static int state;
//static bool firstConnect=true;

MailForm::MailForm(QWidget * parent, const char * name): QDialog(parent,name)
{
	setCaption("Form1");
	mailFormLayout = new QVBoxLayout( this, 11, 6, "mailFormLayout");
	butLayout = new QHBoxLayout( 0, 0, 6, "butLayout");
	butSpacer = new QSpacerItem( 40, 20, QSizePolicy::Expanding, QSizePolicy::Minimum );
	mailFormLayout->setMargin(7);
	PushButton1= new QPushButton(this,"PushButton1");
	//PushButton1->setGeometry(QRect(460,370,50,30));
	PushButton1->setText(tr("&Exit"));

	PushButton2= new QPushButton(this,"PushButton2");
	//PushButton2->setGeometry(QRect(380,370,78,30));
	PushButton2->setText(tr("&Retrieve"));
	
	PushButton3= new QPushButton(this,"PushButton3");
	//PushButton3->setGeometry(QRect(300,370,78,30));
	PushButton3->setText(tr("&Compose"));
	
	
	
	
	
	QFont font(PushButton1->font());
	font.setFamily("Courier");
	font.setPointSize(FONT_SIZE);
	PushButton1->setFont(font);
	PushButton2->setFont(font);
	PushButton3->setFont(font);
	QToolTip::add(PushButton1,tr("Click on this Button will Exit This Form."));
	QToolTip::setFont(font);
	
	table = new QTable(this , "table");
	//table->setGeometry(QRect(20,20,500,340));
	table->setNumRows(15);
	table->setNumCols(5);
	
	table->horizontalHeader()->setLabel( 0, tr( "From:" ) );
	table->horizontalHeader()->setLabel( 1, tr( "To:" ) );
	table->horizontalHeader()->setLabel( 2, tr( "Date:" ) );
	table->horizontalHeader()->setLabel( 3, tr( "Subject:" ) );
	table->horizontalHeader()->setLabel( 4, tr( "Content" ) );
	table->setColumnWidth ( 3,215);
	table->setColumnWidth ( 4,500);
	table->hideColumn(1);
	table->hideColumn(4);
	butLayout->addItem( butSpacer );
	butLayout->addWidget( PushButton3);
	butLayout->addWidget( PushButton2);
	butLayout->addWidget( PushButton1);
	mailFormLayout->addWidget( table );
	mailFormLayout->addLayout( butLayout);
	
	progBar = new QProgressBar(15,this,"progBar");
	progBar->setGeometry(QRect(180,180,200,30));
	progBar->hide();

	connect(PushButton1,SIGNAL(clicked()),this,SLOT(close()));
	connect(PushButton2,SIGNAL(clicked()), this,SLOT(open_hello()));

	//line = new QString();	
	//file = new QFile( "in.txt" ) ;
	//file->open( IO_ReadWrite | IO_Truncate );
	//stream= new QTextStream(file);
    
    proc = new QProcess(this);
	//connect(proc,SIGNAL(readyReadStdout()),this, SLOT(ReadOutput()));  
	
	mailSocket = new QSocket();
	connect(mailSocket, SIGNAL(readyRead()), this, SLOT(readWrite()));
	connect(mailSocket,SIGNAL(connected()),this,SLOT(whenConnected()));
	
	
	mailStream = new QTextStream(mailSocket);
	iMailCount =0;
	
	resize( QSize(480,272).expandedTo(minimumSizeHint()) );
        
}

void MailForm::whenConnected()
{
	
	//table->setText(13,0,"The Socket connected to Host!!!");
}

void MailForm::fillContent()
{	
	

	//for (int i=0 ; i<4 ; i++)
	//{
		//if (!(file->atEnd()))
	//	{		
			//*line = stream->readLine();
		//	table->setText(j,i,*line);

	//	}
		
	//}
	
	progBar->setProgress(j);
	j=j+1;
	if (j==15)
	{
		progBar->hide();
		QObject::killTimers();
		j=0;
		progBar->setProgress(j);
		//file->reset();
		
	}
}

void MailForm::open_hello()
{	
	for (int r=0; r<15; r++)
		for (int s=0; s<5; s++)
			table->setText(r,s,"");
		
	mailSocket->connectToHost("pop3.ethome.com.tw",110);
	state = USER;	
	iMailCount =0;
}

void MailForm::readWrite()
{
	int b,c;
	bool flag=false;
	QString contentString="";
	QString response,temp;
	if (!mailSocket->canReadLine())
		return;
		
	switch(state){
		case USER :
			//table->setText(14,1, "@@USER@@  " + mailSocket->readLine());
			*mailStream << "user trovsky\r\n";
			state= PASS;
			break;
		case PASS :
			//table->setText(14,2, "@@PASS@@  " + mailSocket->readLine());	
			*mailStream << "pass 2ljuxgou\r\n";
			state= STAT;
			break;
		case STAT :
			//table->setText(14,3, "@@STAT@@  " + mailSocket->readLine());
			*mailStream << "stat\r\n";
			state= RETR;
			break;
		/*case WAIT2:
			state=RETR;
			table->setText(13,0, "@@WAIT2@@  " + mailSocket->readLine());
			break; */
		case RETR :
			//table->setText(13,1, "@@RETR@@  " + mailSocket->readLine());
			
			if (iMailCount < 15)
			{
				iMailCount = iMailCount + 1;
				temp.setNum(iMailCount);
				*mailStream << "retr " << temp << "\r\n";
				state = WAIT;
			}
			else { 
				/*messageBox->append("@@READ@@  ");*/ 
				state= QUIT;
				*mailStream << "noop"  << "\r\n";
			}
			break;
		case WAIT :
			//table->setText(13,2, "@@WAIT@@  " + mailSocket->readLine());	
			state = READ;
			break;
		case READ :
			//printf("%d\n",iMailCount);
			//messageBox->append("=========Mail "+temp.setNum(iMailCount)+"============");
			do {
					//printf("%d\n",iMailCount);
					temp = mailSocket->readLine();
					if (temp=="\r\n") flag=true;
					
					b=temp.find("Return-Path"); 
					c=temp.find("\n",b);
					if (!(b==-1))
						table->setText(iMailCount-1,0,temp.mid(b+12,c-b-12).remove('<').remove('>').stripWhiteSpace());
						
					b=temp.find("X-Original-To:");
					c=temp.find("\n",b);
					if (!(b==-1)) 
						table->setText(iMailCount-1,1,temp.mid(b+15,c-b-15).stripWhiteSpace());
						
					b=temp.find("Subject:");
					c=temp.find("\n",b);
					if (!(b==-1))
						table->setText(iMailCount-1,3,temp.mid(b+9,c-b-9));
					
					b=temp.find("Date:");
					c=temp.find("\n",b);
					if (!(b==-1))
					{ 
						table->setText(iMailCount-1,2,temp.mid(b+6,c-b-6));
						//flag=true;
						//messageBox->append("Content:");
					}
					if (flag)
						contentString += mailSocket->readLine();
			} while (mailSocket->canReadLine());
			table->setText(iMailCount-1,4,contentString);
			contentString="";
			flag=false;
			state=RETR;
			*mailStream << "noop"  << "\r\n";
			break;
		case QUIT :
			//messageBox->append("@@QUIT@@ "+mailSocket->readLine());
			//*mailStream << "noop"  << "\r\n";
			//*mailStream << "quit"  << "\r\n";
			//printf("QUIT instruction sended!!!\n");	
			//table->setText(14,0,"@@QUIT@@ "+mailSocket->readLine());
			mailSocket->flush();
			*mailStream << "quit"  << "\r\n";
			//delete mailSocket;
			break;
	}	
}

MailForm::~MailForm() {}