transfiledlg.cpp

这个一个有文件传送功能的程序

// TransFileDlg.cpp : implementation file
//

#include "stdafx.h"
#include "QTS_QQ.h"
#include "TransFileDlg.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif

/////////////////////////////////////////////////////////////////////////////
// CTransFileDlg dialog


CTransFileDlg::CTransFileDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CTransFileDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CTransFileDlg)
	m_filename = _T("");
	m_percent = _T("");
	m_status = _T("");
	//}}AFX_DATA_INIT
}


void CTransFileDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CTransFileDlg)
	DDX_Control(pDX, IDCANCEL, m_cancel);
	DDX_Control(pDX, IDC_SEND, m_send);
	DDX_Control(pDX, IDC_PROGRESS_FILE, m_progress);
	DDX_Control(pDX, IDC_OPENFILE, m_openfile);
	DDX_Text(pDX, IDC_STATIC_FILENAME, m_filename);
	DDX_Text(pDX, IDC_STATIC_PERCENT, m_percent);
	DDX_Text(pDX, IDC_STATUS, m_status);
	//}}AFX_DATA_MAP
}


BEGIN_MESSAGE_MAP(CTransFileDlg, CDialog)
	//{{AFX_MSG_MAP(CTransFileDlg)
	ON_BN_CLICKED(IDC_OPENFILE, OnOpenfile)
	ON_BN_CLICKED(IDC_SEND, OnSend)
	ON_WM_TIMER()
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CTransFileDlg message handlers

BOOL CTransFileDlg::OnInitDialog() 
{
	CDialog::OnInitDialog();
	
	// TODO: Add extra initialization here
	SetTimer(1000,1,NULL);
	percent=0;
	iftrans=false;
	if(ifsend)
	{
		m_openfile.SetWindowText("打开文件");
		m_send.SetWindowText("发  送");
		m_send.EnableWindow(FALSE);
	}
	else
	{
		m_openfile.SetWindowText("保存文件");
		m_send.SetWindowText("接  收");
		m_send.EnableWindow(FALSE);
	}
	return TRUE;  // return TRUE unless you set the focus to a control
	              // EXCEPTION: OCX Property Pages should return FALSE
}


void CTransFileDlg::OnCancel() 
{
	// TODO: Add extra cleanup here
	char str0=char(0);
	char waste[100];
	if(ifsend)
		Serial->SendData(&str0,1);
	else
		Serial->SendData(&str0,1);
	Serial->ReadData(waste,Serial->ReadDataWaiting());	//clear buffer
	CDialog::OnCancel();
}

void CTransFileDlg::OnOpenfile() 
{
	// TODO: Add your control notification handler code here
	if(ifsend)
	{
		CFileDialog openFileDlg(TRUE);
		if(openFileDlg.DoModal()==IDOK)
		{
			filename=openFileDlg.GetPathName();
			m_filename=openFileDlg.GetFileName();
			file.Open(openFileDlg.GetPathName(),CFile::modeRead);
			m_status="文件已打开";
		}
	}
	else
	{
		CFileDialog saveFileDlg(FALSE,m_filename); 
		if( saveFileDlg.DoModal()==IDOK )
		{
			filename = saveFileDlg.GetPathName();
			file.Open(filename,CFile::modeCreate | CFile::modeWrite);
			m_status="文件已选择";
			m_filename=saveFileDlg.GetFileName();
		}
	}
	UpdateData(FALSE);
	m_send.EnableWindow(TRUE);
}

void CTransFileDlg::OnSend() 
{
	// TODO: Add your control notification handler code here
	char str1=char(1);
	if(ifsend)
	{
		Serial->SendData(&str1,1);			//send request
		Serial->SendData(m_filename.GetBuffer(1000),m_filename.GetLength());	//send filename
		m_status="等待回应...";
		UpdateData(FALSE);
		iftrans=true;
	}
	else
	{
		if(Serial->ReadDataWaiting()!=0)
		{
			AfxMessageBox("文件传送请求已被取消。");
			return;
		}
		Serial->SendData(&str1,1);
		m_status="正在接收文件...";
		m_cancel.EnableWindow(FALSE);
		UpdateStatus();
		while(Serial->ReadDataWaiting()<4)
			;
		Serial->ReadData(&length,4);
		remain=length;
		iftrans=true;
	}
}

void CTransFileDlg::OnTimer(UINT nIDEvent) 
{
	// TODO: Add your message handler code here and/or call default
	unsigned long i;
	char data[1000];
	char str1=char(1);
	if(iftrans==false)
	{
		UpdateStatus();
		CDialog::OnTimer(nIDEvent);
		return;
	}
	if(ifsend)
	{
		if(Serial->ReadDataWaiting()!=0)
			if(Serial->GetByte()==1)	//begin to send file
			{
				m_status="正在传送文件...";
				length=file.GetLength();
				Serial->SendData((char*)(&length),4);
				for(i=0;i<file.GetLength()/1000;i++)
				{
					file.Read(data,1000);
					Serial->SendData(data,1000);
					percent=file.GetPosition()*100/file.GetLength();
					UpdateStatus();
					while(Serial->ReadDataWaiting()==0)
						;
					Serial->GetByte();
				}
				i=file.GetLength()%1000;
				file.Read(data,i);
				Serial->SendData(data,i);
				percent=100;
				UpdateStatus();
				m_status="文件传送完成";
				iftrans=false;
			}
			else
			{
				m_status="请求被拒绝";
				UpdateData(FALSE);
			}
	}
	else
	{
		if(remain<1000)
		{
			if(Serial->ReadDataWaiting()==remain)
			{
				Serial->ReadData(data,remain);
				file.Write(data,remain);
				remain-=remain;
				percent=(length-remain)*100/length;
				UpdateStatus();
			}
		}
		else
		{
			if(Serial->ReadDataWaiting()==1000)
			{
				Serial->ReadData(data,1000);
				file.Write(data,1000);
				Serial->SendData(&str1,1);
				remain-=1000;
				percent=(length-remain)*100/length;
				UpdateStatus();
			}
		}
		if(remain==0)
		{
			m_status="接收完毕";
			percent=100;
			m_cancel.EnableWindow();
			iftrans=false;
			UpdateStatus();
		}
	}
	UpdateStatus();
	CDialog::OnTimer(nIDEvent);
}
void CTransFileDlg::UpdateStatus(void)
{
	m_progress.SetPos(percent);
	m_percent.Format("%d",percent);
	m_percent+="%";
	UpdateData(FALSE);
}