codedlg.cpp

霍夫曼编码与解码

// CodeDlg.cpp : implementation file
//

#include "stdafx.h"
#include "Code.h"
#include "CodeDlg.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()

/////////////////////////////////////////////////////////////////////////////
// CCodeDlg dialog

CCodeDlg::CCodeDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CCodeDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CCodeDlg)
		// NOTE: the ClassWizard will add member initialization here
	//}}AFX_DATA_INIT
	// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}

void CCodeDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CCodeDlg)
	DDX_Control(pDX, IDC_LIST_SHOW, m_show);
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CCodeDlg, CDialog)
	//{{AFX_MSG_MAP(CCodeDlg)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_BN_CLICKED(IDC_BUTTON_BIANMA, OnButtonBianma)
	ON_BN_CLICKED(IDC_BUTTON_JIEMA, OnButtonJiema)
	ON_BN_CLICKED(IDC_BUTTON_COMPARE, OnButtonCompare)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CCodeDlg message handlers

BOOL CCodeDlg::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 her	

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

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

void CCodeDlg::OnButtonBianma() 
{
	// TODO: Add your control notification handler code here
	m_show.ResetContent();
	CFileDialog   dlg(TRUE,   "txt", NULL,   OFN_HIDEREADONLY | OFN_OVERWRITEPROMPT,   "Txt Files|*.txt");  //给文件名编辑框赋初值 
	CString filepath = "";
	if(dlg.DoModal()   ==   IDOK)   
	{   
		filepath=dlg.GetPathName();
	}   
	UpdateData(FALSE);//刷新对话框，显示路径
	
	char character[100]={0};
	if (filepath != "")
	{
		ifstream fin;
		fin.open(filepath);
		fin>>character;               //把文件的字符存入character[1000000]
		fin.close();
		m_show.InsertString(0,"字符  权值");
	}
	else
	{
		m_show.InsertString(0,"请选择要编码的文件!");
	}

	m_hf.TxtToCode(character);
	CString show;
	int num = m_hf.getNum();
	for(int i=1;i<=num;i++)
	{
		show = m_hf.getScan(i);
		m_show.InsertString(i,show);
	}
	m_hf.creatHCfile();


}

void CCodeDlg::OnButtonJiema() 
{
	// TODO: Add your control notification handler code here
	
	m_show.ResetContent();
	
	CFileDialog   dlg(TRUE,   "txt", NULL,   OFN_HIDEREADONLY | OFN_OVERWRITEPROMPT,   "Txt Files|*.txt");  //给文件名编辑框赋初值 
	CString filepath = "";
	if(dlg.DoModal()   ==   IDOK)   
	{   
		filepath=dlg.GetPathName();
	}   
	UpdateData(FALSE);//刷新对话框，显示路径
	
	if (filepath != "")
	{
		m_hf.readHCFile(filepath);
		m_show.InsertString(0,"字符  编码");
	}
	else
	{
		m_show.InsertString(0,"请选择编码规则文件!");
	}
	
	FILE *fp;
	fp = fopen("decodefile.txt","w");
	char *s;
	s = m_hf.CodeToTxt();
	fprintf(fp,"%s",s);
	fclose(fp);
	
	CString show;
	int num = m_hf.getNum();
	for(int i=1;i<=num;i++)
	{
		show = m_hf.getHc(i);
		m_show.InsertString(i,show);
	}

}

void CCodeDlg::OnButtonCompare() 
{
	// TODO: Add your control notification handler code here
	CFileDialog   dlg(TRUE,   "txt", NULL,   OFN_HIDEREADONLY | OFN_OVERWRITEPROMPT,   "Txt Files|*.txt");  //给文件名编辑框赋初值 
	CString filepath = "";
	if(dlg.DoModal()   ==   IDOK)   
	{   
		filepath=dlg.GetPathName();
	}   
	UpdateData(FALSE);//刷新对话框，显示路径
	
	int same = 3;

	if (filepath != "")
	{
		same = m_hf.compareFile(filepath,"decodefile.txt");
	}

	m_show.ResetContent();
	if (same==1) 
	{
		m_show.InsertString(0,"译码成功!");
	}
	else if(same == 0)
	{
		m_show.InsertString(0,"译码失败!");
	}
	else
	{
		m_show.InsertString(0,"请选择原文件!");
	}
	
}