display.cpp

网上搜的关于语音聊天的语音聊天系统

	//				log.WriteString("\nPlaying......");
			
				disp="  "+header+" is talking...";
				SetDlgItemText(6051,(char*)(LPCTSTR)disp);
/*
				if(from->FindStringExact(-1,header)==LB_ERR)
				{
					from->ResetContent();
					from->AddString(header);
				}
		*/		
			//	reccount++;
			//	sprintf(str,"\n No of Messages received = %d ",reccount);
			//	log.WriteString(str);
			}
}
	



/*                                                             */
/*  This function will flash the window whenever               */
/*  important message has been received...shutdown,logout..etc */
/*                                                             */ 
 
void Display::showFlash()
{
	//flash for 3 times
	FlashWindow(TRUE);
	Sleep(200);
	FlashWindow(TRUE);
	

}

//
//  After pressing the Save button ...
//
//

void Display::OnStartWrite(char *name)
{

isSave=TRUE;

log.WriteString("\n Calling create fun of thread");
write->PostThreadMessage(WM_WRITESOUND_CREATEFILE,0,(LPARAM)name);
}



//
// After pressing the Save button ...later stop...
//

void Display::OnStopWrite()
{
isSave=FALSE;
write->PostThreadMessage(WM_WRITESOUND_CLOSEFILE,0,0);
}

/*															 */	
/*  This function will be called whenever user               */
/*  selects one of the radio button (*all or *client)        */
/*                                                           */ 

void Display::OnChange(int id)
{
CString bmesg;

	if(cbox->GetCount()<=0)
	return;
	
	if(id==IDC_RADIO1 && radio1->GetCheck())    //Send to client
	{
		cbox->EnableWindow(TRUE);
		
		if(cbox->GetCount()>=1)
		{
		curuser.Empty();
		cbox->GetLBText(cbox->GetCurSel(),curuser);
		log.WriteString("\nConnected to user "+curuser);
		selectflag=1;
		startRecording();
		}
		else
		{
		curuser.Empty();
		selectflag=0;
		stopRecording();
		 //stopPlaying();         //****** REMOVED ******//
		}	
	}
	
	if(id==IDC_RADIO2 && radio2->GetCheck())				//Send to All 
	{
	
	curuser="ALL";

	if(isstart==0)    //Stop the record and play 
	OnStop();
	
	log.WriteString("\n Broadcasting message");
	
	Broadcast bd(IDD_DIALOG5,this);
	bd.DoModal();
	bmesg="OVER:";
	selectflag=1;
	
	
	if(sockclt.Send(bmesg,bmesg.GetLength()))
	log.WriteString("\n Over Mesg sent to Server");
	else
	log.WriteString("\n Unable to send over mesg to Server");
	
	curuser.Empty();
	radio1->SetCheck(1);
	radio2->SetCheck(0);
	
		

	}

}

/*											                  */	
/*  This function will be called whenever client              */
/*  receives new userlist from the  server   and it will      */
/*  update the combo box                                      */ 
/*											                  */	

void Display::updateList(CString mesg)
{
int index,num,prevcount;
CString name;
static int first=0;
CString disp;
		
	//Clear the combo box contents
	prevcount=cbox->GetCount();
	
	cbox->ResetContent();
	
	do
	{
		index=mesg.Find(';');
	
		if(index==-1)
		break;
	
		name=mesg.Left(index);
		
		if(name.CompareNoCase(sockclt.name)!=0)
		cbox->AddString(name);
		
		mesg=mesg.Right(mesg.GetLength()-index-1);
		
	}
	while(TRUE);

	
	
	if(cbox->GetCount()==1)
	{
		cbox->SetCurSel(0);
		cbox->GetLBText(0,curuser);
		selectflag=1;
		if(prevcount==0 && first==1)
		{
		showFlash();
		disp="New user " + curuser + " logged in";
		SetDlgItemText(6051,(char*)(LPCTSTR)disp);
		}
	}
	
	first=1;

	if(cbox->GetCount()>1)
	{
		if(curuser.IsEmpty()==FALSE)
		{
			if((num=cbox->FindStringExact(-1,curuser))>=0)
			{
			selectflag=1;
			cbox->SetCurSel(num);					
			return;
			}
		}
			selectflag=0;
			OnStop();
			//		stopRecording();
			cbox->SetCurSel(0);
			
			if(curuser.IsEmpty()==FALSE && curuser!="ALL" )
			{
				showFlash();
				disp=curuser+" logged out  \n Please select the user";
				SetDlgItemText(6051,(char*)(LPCTSTR)disp);
	//			MessageBox(curuser+" logged out  ......Please select the user");
			}
			else if(curuser!="ALL")
			{
				
				showFlash();
				disp="New user logged in";
				SetDlgItemText(6051,(char*)(LPCTSTR)disp);

				//MessageBox("New user logged in....");
			
			}
	
	}
	
		
	if(cbox->GetCount()==0)
	{
		OnStop();
		//stopRecording();
		//stopPlaying();        //******* REMOVED *******//
		if(curuser.IsEmpty()==FALSE && curuser!="ALL")
		{
			showFlash();
			disp=curuser+" logged out";
			SetDlgItemText(6051,(char*)(LPCTSTR)disp);
		//	MessageBox(curuser+" logged out");
		}
		//SetDlgItemText(6051,"");
		//from->ResetContent();   //Clear the From Listbox
		curuser.Empty();
	}

}


/*															 */	
/*  This function will be called whenever user               */
/*  presses the start/stop  button                           */
/*  It updates the button status and starts recording and playing.                                                         */ 
/*															*/
void Display::OnStart()
{
	if(cbox->GetCount()<1)
	{
	MessageBox("No users are present");
	return;
	}
	
	if(!isstart)
	return;

	if(doit==TRUE)	
	talk->Play(0,-1,-1);

	cbox->GetLBText(cbox->GetCurSel(),curuser);
	selectflag=1;
	
	//Start recording and playing...
	startRecording();
	startPlaying();
	
	log.WriteString("\n New Target user is "+ curuser);
	//change state
	isstart=0;
	start->ShowWindow(FALSE);
	stop->ShowWindow(TRUE);

}



/*															 */	
/*  This function will be called whenever user               */
/*  presses the Stop  button                                 */
/*                                                           */ 
void Display::OnStop()
{
	
	if(isstart)
	return;
	
	if(doit==TRUE)
	talk->Stop();

	stopRecording();
	stopPlaying();
	selectflag=0;


	//change state
	isstart=1;
	start->ShowWindow(TRUE);
	stop->ShowWindow(FALSE);
}




//
//*** Part of this code needs to be removed later***
//
void Display::startRecording()
{
		if(record->recording==FALSE)
		{
//			if(sockclt.name.CompareNoCase("logname")==0)
			record->PostThreadMessage(WM_RECORDSOUND_STARTRECORDING,0,0);
		}

}


/*											                  */	
/*  This function will stop the recording by sending           */
/*  stop message to recording thread                          */
/*                                                            */ 

void Display::stopRecording()
{
		if(record->recording==TRUE)
		record->PostThreadMessage(WM_RECORDSOUND_STOPRECORDING,0,0);	 
}

/*											                  */	
/*  This function will stop the playing  by sending            */
/*  stop message to player thread.                            */
/*                                                            */ 
void Display::startPlaying()
{

	if(play->Playing==FALSE)
	play->PostThreadMessage(WM_PLAYSOUND_STARTPLAYING,0,0);

}


/*											                  */	
/*  This function will stop the playing  by sending            */
/*  stop message to player thread.                            */
/*                                                            */ 
void Display::stopPlaying()
{

	if(play->Playing==TRUE)
	play->PostThreadMessage(WM_PLAYSOUND_STOPPLAYING,0,0);

}


/*											                  */	
/*  This function will send the voice data to the server      */
/*  (called from the Recorder Thread)                         */
/*                                                            */ 
void Display::sendMessage(char *mesg,int length)
{
	char buflen[15];		
	char str[PLAYBUFFER+50];
	int i,j;		
		
		
		//If user not selected or no users are present return;
		if(selectflag==0 )
		return;

		if(mesg==NULL)
		{
		log.WriteString("\nEmpty buffer received from recordsound");
		return;
		}
		
		if(length<1 || length>PLAYBUFFER)
		{
		log.WriteString("\n Send : Length is more than the 2000 or less than 1");
		return;
		}	
		
		mesg=mesg-20;	

	 
		//First 15 bits  contains the destination information
		//Next   5 bits contains the length of message
		//Remaining part contains the data

		if(curuser.IsEmpty())
		{
		log.WriteString("\n Curuser is Empty- No user selected");
		return;
		}

		for(i=0;i < curuser.GetLength();i++)
		mesg[i]=curuser[i];
		mesg[i]=':';
		
		
		sprintf(buflen,"%d",length);

		for(j=0,i=15;j<5;j++,i++)
		mesg[i]=buflen[j];


		
	//Write to log file
	sprintf(str,"\n Sending message datalen = %d , mesg = %s",length,&mesg[20]);
	log.WriteString(str);
	
//	sendcount++;
//	sprintf(str,"\n No of Messages Sent = %d ",sendcount);
//	log.WriteString(str);
	
	if(sockclt.Send(mesg,length+20)!=SOCKET_ERROR )
	log.WriteString("\n Data sent successfully to "+curuser);
	else
	log.WriteString("\n Data sent Error ");
	
}




/*											                  */	
/*  Display the About Dialog Box                              */
/*                                                            */ 


void Display::OnAbout()
{
	about my(IDD_DIALOG2);
	my.DoModal();
}


/*											                  */	
/*  Display the About Dialog Box                              */
/*                                                            */ 
void Display::OnSave()
{

	if(curuser.IsEmpty())
	{
	MessageBox("\n First connect to one of the user...");
	return;
	}	

writeuser=curuser;
	
Save sa(IDD_DIALOG4,this);
sa.DoModal();
}



/*											                  */	
/*  This function will destroy the client window and          */
/*  closes all threads and socket connecion                   */ 
/*											                  */	

void Display::OnCancel()
{
	
	log.WriteString("\n Closing the dialog box");

	//Stop the recording and playing threads
	
	if(record->recording==TRUE)
	record->PostThreadMessage(WM_RECORDSOUND_STOPRECORDING,0,0);
	
	record->PostThreadMessage(WM_RECORDSOUND_ENDTHREAD,0,0);

	if(play->Playing==TRUE)
	play->PostThreadMessage(WM_PLAYSOUND_STOPPLAYING,0,0);
	
	play->PostThreadMessage(WM_PLAYSOUND_ENDTHREAD,0,0);

		  
	write->PostThreadMessage(WM_WRITESOUND_ENDTHREAD,0,0);

	if(sockclt.closeflag==1)
	{
		showFlash();
		MessageBox("Server has shutdown");
	}
	if(isconnected==TRUE)	
	sockclt.Close();	

	CDialog::OnCancel();
}


/*											                  */	
/*  This function will display the volume setting             */
/*  dialog box.                                               */ 
/*											                  */	

void Display::OnVolume()
{
Volume vol(IDD_DIALOG3);
vol.DoModal();

}


/*											                  */	
/*  This function will play the stored sound                  */
/*                                                            */ 
/*											                  */	

void Display::OnPlay()
{
	
CFileDialog fd(1,0,0,0,"Sound Files(*.wav)|*.wav|All Files|*.*||" );
fd.m_ofn.lpstrTitle="Browse";

	if(isstart==0)
	{
		MessageBox("Please stop chatting...");
		return;
	}
	if(fd.DoModal()==IDOK)
	{
	sndPlaySound(fd.GetPathName(),SND_ASYNC);
	}

}