mzdlg.cpp

MH编码是用于黑白二进制文件传真的数据压缩。文件传真是指一般文件、图纸、手写稿、表格、报纸等文件的传真。他们是黑白二值的

// MZDlg.cpp : implementation file
//

#include "stdafx.h"
#include "MZ.h"
#include "MZDlg.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)
		// No message handlers
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CMZDlg dialog

CMZDlg::CMZDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CMZDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CMZDlg)
	m_Input = _T("");
	m_Output = _T("");
	m_Output2 = _T("");
	//}}AFX_DATA_INIT
	// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}

void CMZDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CMZDlg)
	DDX_Text(pDX, IDC_EDIT_Sequence, m_Input);
	DDX_Text(pDX, IDC_EDIT_MZ, m_Output);
	DDX_Text(pDX, IDC_EDIT_Output, m_Output2);
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CMZDlg, CDialog)
	//{{AFX_MSG_MAP(CMZDlg)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_BN_CLICKED(IDC_BUTTON_Begin, OnBUTTONBegin)
	ON_BN_CLICKED(IDC_BUTTON_Back, OnBUTTONBack)
	ON_BN_CLICKED(IDC_BUTTON1, OnButton1)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CMZDlg message handlers

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

void CMZDlg::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 CMZDlg::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 CMZDlg::OnQueryDragIcon()
{
	return (HCURSOR) m_hIcon;
}

void CMZDlg::OnBUTTONBegin() 
{
	// TODO: Add your control notification handler code here
    UpdateData(TRUE);
	long m,n,dlg1,dlg2;
	CString temp,Data,form,str,flag,tag,strOutput,strLength,str1,str2,dlg3,key1,key2,InputTemp;
	Data.Format("MH--CCITT.mdb");
	form.Format("MHinfo");
	dlg1=m_Input.GetLength();
	key1.Format("%ld",dlg1);
	GetDlgItem(IDC_Input_Num)->SetWindowText(key1);
	m_DataBase.InitAccess();
	m_DataBase.openAccess((_bstr_t)Data,form);
	m_Output.Format("%s","000000000001");
    temp=m_Input.Left(1);
	if(temp=="1")
		m_Output.Insert(m_Output.GetLength(),"00110101");
	if(m_Input.GetLength()%1728!=0)//每一行必须1728个像素
	{
		MessageBox("Error! Please check and input again!");
		return;
	}//0000110111
	while(!m_Input.IsEmpty())
	{
		InputTemp=m_Input.Right(m_Input.GetLength()-1728);
		m_Input=m_Input.Left(1728);
		//CString a,b;
		//a.Format("%d",m_Input.GetLength());
		//b.Format("%d",InputTemp.GetLength());
		//MessageBox(a);
		//MessageBox(b);
		if(temp=="1")
		{
			flag="0";
			tag="1";
fan:	    while(!m_Input.IsEmpty())	
			{
				if(m_Input.Find(flag)==-1)
					str=m_Input;
				else
					str=m_Input.Left(m_Input.Find(flag));			
				if(str.GetLength()<64&&str.GetLength()>0)
				{
					strLength.Format("%d",str.GetLength());
					strOutput=SearchMZ(strLength,tag);
					m_Output.Insert(m_Output.GetLength(),strOutput);
				}
				else if(str.GetLength()>63&&str.GetLength()<=1728)
				{
					m=str.GetLength()/64;
					n=str.GetLength()-64*m;
					str1.Format("%d",n);
					str2.Format("%d",64*m);
					strOutput=SearchMZ(str2,tag);
					m_Output.Insert(m_Output.GetLength(),strOutput);
					strOutput=SearchMZ(str1,tag);
					m_Output.Insert(m_Output.GetLength(),strOutput);
				}
			//	else if(str.GetLength()==0)
				//	continue;
			//	else 
			//	{
			//		MessageBox("Error! Please check and input again!");
			//	}
				temp=flag;
				flag=tag;
				tag=temp;
				m_Input=m_Input.Right(m_Input.GetLength()-str.GetLength());
			}
		}
		else if(temp=="0")
		{
			flag="1";
			tag="0";
			goto fan;
		}	
		m_Output.Insert(m_Output.GetLength(),"000000000001");
		m_Input=InputTemp;
	}
	dlg2=m_Output.GetLength()-12;
	key2.Format("%ld",dlg2);
	GetDlgItem(IDC_MZ_Length)->SetWindowText(key2);
	dlg3.Format("%.2f",(float)dlg1/(float)dlg2);
	GetDlgItem(IDC_Small_Rate)->SetWindowText(dlg3);
	m_Output.Insert(m_Output.GetLength(),"000000000001000000000001000000000001000000000001000000000001000000000001");
	UpdateData(FALSE);    
}

CString CMZDlg::SearchMZ(CString seq, CString tag)//tag==1表示为黑色像素，tag==0代表白色像素；
{   
    CString strSQL,temp;
	while(!m_DataBase.m_pRecordset->fsEOF)
	{
       strSQL=(char *)(_bstr_t)m_DataBase.m_pRecordset->GetCollect("RL长度");
	   if(seq==strSQL)
	   {                     
           if(tag=="1")
		   {
			   temp=(char*)(_bstr_t)m_DataBase.m_pRecordset->GetCollect("黑游程码字");
		   }
		   else if(tag=="0")
		   {
               temp=(char*)(_bstr_t)m_DataBase.m_pRecordset->GetCollect("白游程码字");
		   }
		   m_DataBase.m_pRecordset->MoveFirst();//将游标重置为数据库第一条记录
		   return temp;
	   }
	   else
		   m_DataBase.m_pRecordset->MoveNext();
	}
	m_DataBase.m_pRecordset->MoveFirst();
	return "0";
}
void CMZDlg::OnBUTTONBack() 
{
	// TODO: Add your control notification handler code here
	UpdateData(TRUE);
	CString Temp,tag="0",flag="1",strTemp,num,fill,dlg;
	int back,i;	
	if(m_Output.Left(12)!="000000000001"||m_Output.Right(72)!="000000000001000000000001000000000001000000000001000000000001000000000001")
	{
		MessageBox("Receive Code Error! Please retransmmit again!");
		return;
	}
	m_Output=m_Output.Right(m_Output.GetLength()-12);
	m_Output=m_Output.Left(m_Output.GetLength()-72);
	while(!m_Output.IsEmpty())
	{
    	for(i=1;i<=m_Output.GetLength();i++)
		{
			Temp=m_Output.Left(i);
			num=CopyMZ(Temp,tag);
			if(num=="EOL")
				 break;
			back=atoi(num);				
			if(back==-1)//说明没有匹配的码元
				continue;
			else if(back==0)//说明有匹配的码元，且本行初始像素为黑色像素
			{
			    break;
			}
			else if(back>0)
			{
                for(int j=0;j<back;j++)
		   		    fill.Insert(fill.GetLength(),tag);
		      	m_Output2.Insert(m_Output2.GetLength(),fill);
				fill.Empty();
				break;
			}
		}
		if(back<64)
		{
			dlg=tag;//像素交换
			tag=flag;
			flag=dlg;
		}        
		m_Output=m_Output.Right(m_Output.GetLength()-i);//去除已经解码完毕的MH码元
	}	
	m_DataBase.exitAccess();//关闭数据库
	UpdateData(FALSE);
}
CString CMZDlg::CopyMZ(CString str,CString tag)//tag==1表示为黑色像素，tag==0代表白色像素；
{
    CString strSQL,temp;
	if(tag=="1")
	{
		while(!m_DataBase.m_pRecordset->fsEOF)
		{ 
			strSQL=(char *)(_bstr_t)m_DataBase.m_pRecordset->GetCollect("黑游程码字");
			if(str==strSQL)
			{   
				temp=(char*)(_bstr_t)m_DataBase.m_pRecordset->GetCollect("RL长度");
				m_DataBase.m_pRecordset->MoveFirst();//将游标重置为数据库第一条记录				
				return temp;
			}
			else
				m_DataBase.m_pRecordset->MoveNext();
		}	   
	}	
    else if(tag=="0")
	{
		while(!m_DataBase.m_pRecordset->fsEOF)
		{ 
			strSQL=(char *)(_bstr_t)m_DataBase.m_pRecordset->GetCollect("白游程码字");
			if(str==strSQL)
			{   
				temp=(char*)(_bstr_t)m_DataBase.m_pRecordset->GetCollect("RL长度");
				m_DataBase.m_pRecordset->MoveFirst();//将游标重置为数据库第一条记录				
				return temp;
                     
			}
			else
				m_DataBase.m_pRecordset->MoveNext();
		}	   
	}	
	m_DataBase.m_pRecordset->MoveFirst();
	return "-1";
}
//00001101010000011100101011000000000000000000000000000000
//10111100011101000011101011001001110100001110100001111100000011

void CMZDlg::OnButton1() 
{
	// TODO: Add your control notification handler code here
	m_Input.Empty();
	m_Output.Empty();
	m_Output2.Empty();
}