filesenddlg.cpp

利用串口进行通讯

// FileSendDlg.cpp : implementation file
//

#include "stdafx.h"
#include "FileSend.h"
#include "FileSendDlg.h"

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

/////////////////////////////////////////////////////////////////////////////
// CAboutDlg dialog used for App About

class CAboutDlg : public CDialog
{
public:
	CAboutDlg();

// Dialog Data
	//{{AFX_DATA(CAboutDlg)
	enum { IDD = IDD_ABOUTBOX };
	//}}AFX_DATA

	// ClassWizard generated virtual function overrides
	//{{AFX_VIRTUAL(CAboutDlg)
	protected:
	virtual void DoDataExchange(CDataExchange* pDX);    // DDX/DDV support
	//}}AFX_VIRTUAL

// Implementation
protected:
	//{{AFX_MSG(CAboutDlg)
	//}}AFX_MSG
	DECLARE_MESSAGE_MAP()
};

CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD)
{
	//{{AFX_DATA_INIT(CAboutDlg)
	//}}AFX_DATA_INIT
}

void CAboutDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CAboutDlg)
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CAboutDlg, CDialog)
	//{{AFX_MSG_MAP(CAboutDlg)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CFileSendDlg dialog

CFileSendDlg::CFileSendDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CFileSendDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CFileSendDlg)
	//}}AFX_DATA_INIT
	// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}

void CFileSendDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CFileSendDlg)
	DDX_Control(pDX, IDC_LIST2, m_list2);
	DDX_Control(pDX, IDC_LIST1, m_list1);
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CFileSendDlg, CDialog)
	//{{AFX_MSG_MAP(CFileSendDlg)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_MESSAGE(WM_COMM_RXCHAR, OnCommunication)
	ON_MESSAGE(WM_COMM_TXEMPTY_DETECTED, OnSendOver)
	ON_BN_CLICKED(IDC_BNOPENCOM, OnBnopencom)
	ON_WM_CLOSE()
	ON_BN_CLICKED(IDC_BNCLEAR, OnBnclear)
	ON_BN_CLICKED(IDC_BNCLEARA, OnBncleara)
	ON_BN_CLICKED(IDC_BNBROWSE, OnBnbrowse)
	ON_COMMAND(IDC_BNSENDFILE, OnBnsendfile)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CFileSendDlg message handlers

BOOL CFileSendDlg::OnInitDialog()
{
	CDialog::OnInitDialog();

	// Add "About..." menu item to system menu.

	// IDM_ABOUTBOX must be in the system command range.
	ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX);
	ASSERT(IDM_ABOUTBOX < 0xF000);

	CMenu* pSysMenu = GetSystemMenu(FALSE);
	if (pSysMenu != NULL)
	{
		CString strAboutMenu;
		strAboutMenu.LoadString(IDS_ABOUTBOX);
		if (!strAboutMenu.IsEmpty())
		{
			pSysMenu->AppendMenu(MF_SEPARATOR);
			pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu);
		}
	}

	// Set the icon for this dialog.  The framework does this automatically
	//  when the application's main window is not a dialog
	SetIcon(m_hIcon, TRUE);			// Set big icon
	SetIcon(m_hIcon, FALSE);		// Set small icon
	
	// TODO: Add extra initialization here

//	m_szSendBuffer=new unsigned char[BUFFER_SIZE+10];
	m_szSendBuffer=new unsigned char[2];
	m_chrRecBuffer=new unsigned char[BUFFER_SIZE];
	
  
	m_bComState=FALSE;
	m_nSendFileState=0;
	m_nFileSum=0;

	SetDlgItemText(IDC_CBCOMPORT,"1");
	SetDlgItemText(IDC_CBCOMBAUD,"9600");


	return TRUE;  // return TRUE  unless you set the focus to a control
}

void CFileSendDlg::OnSysCommand(UINT nID, LPARAM lParam)
{
	if ((nID & 0xFFF0) == IDM_ABOUTBOX)
	{
		CAboutDlg dlgAbout;
		dlgAbout.DoModal();
	}
	else
	{
		CDialog::OnSysCommand(nID, lParam);
	}
}

// If you add a minimize button to your dialog, you will need the code below
//  to draw the icon.  For MFC applications using the document/view model,
//  this is automatically done for you by the framework.

void CFileSendDlg::OnPaint() 
{
	if (IsIconic())
	{
		CPaintDC dc(this); // device context for painting

		SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0);

		// Center icon in client rectangle
		int cxIcon = GetSystemMetrics(SM_CXICON);
		int cyIcon = GetSystemMetrics(SM_CYICON);
		CRect rect;
		GetClientRect(&rect);
		int x = (rect.Width() - cxIcon + 1) / 2;
		int y = (rect.Height() - cyIcon + 1) / 2;

		// Draw the icon
		dc.DrawIcon(x, y, m_hIcon);
	}
	else
	{
		CDialog::OnPaint();
	}
}

// The system calls this to obtain the cursor to display while the user drags
//  the minimized window.
HCURSOR CFileSendDlg::OnQueryDragIcon()
{
	return (HCURSOR) m_hIcon;
}

/*
LONG CFileSendDlg::OnCommunication(WPARAM ch, LPARAM port)
{

//	if(port!=3) return -1;
	// TODO: Add your control notification handler code here

	unsigned char aa[2];
	aa[0]=ch;
	aa[1]=0;

	SaveData(1,aa);
	return 0;
}
*/


LONG CFileSendDlg::OnCommunication(WPARAM ch, LPARAM port)
{

	// TODO: Add your control notification handler code here

	if(ch=='$')
	{
		if(m_nHeadFlag<8)
		{
			m_nHeadFlag++;
			if(m_nHeadFlag==8)
			{
				m_nRecSum=0;
			}
			//连续收到8个'$',认为是文件发送的头				
		}
		else
		{
			//文件中的数据
			m_chrRecBuffer[m_nRecSum++]=ch;
		}
	}
	else
	{
		if(m_nHeadFlag<8)
		{
			//乱数据
			m_nHeadFlag=0;
			m_nRecSum=0;
		}
		else
		{
			//后面有用的数据
			m_chrRecBuffer[m_nRecSum++]=ch;
		}
	}

	if(m_nHeadFlag==8)
	{
		if(m_nRecSum>0)
		{
			if(m_chrRecBuffer[0]==1)
			{
				//这个包是文件头信息的包
				if(m_nRecSum>=73)
				{
					//接收到了完成的报头
					//判断一下校验和
					DWORD headparity=0;
					DWORD checksum=0;
					for(int i=0;i<69;i++)
						headparity +=m_chrRecBuffer[i];
					checksum=m_chrRecBuffer[69];
					checksum <<=8;
					checksum |=m_chrRecBuffer[70];
					checksum <<=8;
					checksum |=m_chrRecBuffer[71];
					checksum <<=8;
					checksum |=m_chrRecBuffer[72];

					if(checksum==headparity)
					{
						//头正确
						//取出文件名称
						for(int j=0;j<60;j++)
						{
							m_szRecFileName[j]=m_chrRecBuffer[1+j];
						}
						m_szRecFileName[60]=0;

						//取出文件长度
						m_nRecFileLength=m_chrRecBuffer[61];
						m_nRecFileLength <<=8;
						m_nRecFileLength |=m_chrRecBuffer[62];
						m_nRecFileLength <<=8;
						m_nRecFileLength |=m_chrRecBuffer[63];
						m_nRecFileLength <<=8;
						m_nRecFileLength |=m_chrRecBuffer[64];

						char ss[20];
						wsprintf(ss,"%d",m_nRecFileLength);
						SetDlgItemText(IDC_STRECFILELENGTH,ss);

						//取出文件校验和
						m_nRecFileParity=m_chrRecBuffer[65];
						m_nRecFileParity <<=8;
						m_nRecFileParity |=m_chrRecBuffer[66];
						m_nRecFileParity <<=8;
						m_nRecFileParity |=m_chrRecBuffer[67];
						m_nRecFileParity <<=8;
						m_nRecFileParity |=m_chrRecBuffer[68];

						m_nRecSum=0;
						m_nHeadFlag=0;

						CFile file;
						if(!file.Open((char *)m_szRecFileName,CFile::modeCreate | CFile::modeWrite))
						{
							AfxMessageBox("创建文件错误!");
						}
						else
						{
							file.Close();
						}
					}
					else
					{
						//头错误,重新收头
						m_nHeadFlag=0;
					}
				}
			}
			else if(m_chrRecBuffer[0]==2)
			{
				/*
				char ss[20];
				wsprintf(ss,"%d",m_nRecSum);
				SetDlgItemText(IDC_STRECSUM,ss);
				*/
				//文件主体
				if(m_nRecSum>=(m_nRecFileLength+1))
				{
					//接收到了文件主体
					for(DWORD i=0;i<m_nRecFileLength;i++)
					{
						m_chrRecBuffer[i]=m_chrRecBuffer[i+1];
					}

					CFile file;
					if(!file.Open((char *)m_szRecFileName,CFile::modeCreate | CFile::modeWrite))
					{
						AfxMessageBox("创建文件错误!");
					}
					else
					{
						file.WriteHuge(m_chrRecBuffer,m_nRecFileLength);
						file.Close();
						CString st=m_szRecFileName;
				   CFile::Rename(st,("123"+st));
						m_list2.AddString(st);
						
					}
					m_nHeadFlag=0;
					m_nRecSum=0;
					m_nRecFileParity=0;
					m_nRecFileLength=0;
					m_szRecFileName[0]=0;
				}
			}
		}
	}


	return 0;
}


void CFileSendDlg::SaveData(int count, unsigned char *pbVal)
{
	for(int i=0;i<count;i++)
	{
		if(pbVal[i]=='$')
		{
			if(m_nHeadFlag<8)
			{
				m_nHeadFlag++;
				if(m_nHeadFlag==8)
				{
					m_nRecSum=0;
				}
				//连续收到8个'$',认为是文件发送的头				
			}
			else
			{
				//文件中的数据
				m_chrRecBuffer[m_nRecSum++]=pbVal[i];
			}
		}
		else
		{
			if(m_nHeadFlag<8)
			{
				//乱数据
				m_nHeadFlag=0;
				m_nRecSum=0;
			}
			else
			{
				//后面有用的数据
				m_chrRecBuffer[m_nRecSum++]=pbVal[i];
			}
		}
	}

	if(m_nHeadFlag==8)
	{
		if(m_nRecSum>0)
		{
			if(m_chrRecBuffer[0]==1)
			{
				//这个包是文件头信息的包
				if(m_nRecSum>=73)
				{
					//接收到了完成的报头
					//判断一下校验和
					DWORD headparity=0;
					DWORD checksum=0;
					for(int i=0;i<69;i++)
						headparity +=m_chrRecBuffer[i];
					checksum=m_chrRecBuffer[69];
					checksum <<=8;
					checksum |=m_chrRecBuffer[70];
					checksum <<=8;
					checksum |=m_chrRecBuffer[71];
					checksum <<=8;
					checksum |=m_chrRecBuffer[72];

					if(checksum==headparity)
					{
						//头正确
						//取出文件名称
						for(int j=0;j<60;j++)
						{
							m_szRecFileName[j]=m_chrRecBuffer[1+j];
						}
						m_szRecFileName[60]=0;

						//取出文件长度
						m_nRecFileLength=m_chrRecBuffer[61];
						m_nRecFileLength <<=8;
						m_nRecFileLength |=m_chrRecBuffer[62];
						m_nRecFileLength <<=8;
						m_nRecFileLength |=m_chrRecBuffer[63];
						m_nRecFileLength <<=8;
						m_nRecFileLength |=m_chrRecBuffer[64];

						char ss[20];
						wsprintf(ss,"%d",m_nRecFileLength);
						SetDlgItemText(IDC_STRECFILELENGTH,ss);

						//取出文件校验和
						m_nRecFileParity=m_chrRecBuffer[65];
						m_nRecFileParity <<=8;
						m_nRecFileParity |=m_chrRecBuffer[66];
						m_nRecFileParity <<=8;
						m_nRecFileParity |=m_chrRecBuffer[67];
						m_nRecFileParity <<=8;
						m_nRecFileParity |=m_chrRecBuffer[68];

						m_nRecSum=0;
						m_nHeadFlag=0;

						CFile file;
						if(!file.Open((char *)m_szRecFileName,CFile::modeCreate | CFile::modeWrite))
						{
							AfxMessageBox("创建文件错误!");
						}