ldcdlg.cpp

利用哈夫曼编码进行对已有文件进行压缩 在文件使用时

// ldcDlg.cpp : 实现文件
//
#include "stdafx.h"
#include "ldc.h"
#include "ldcDlg.h"

#include "minheap.h"
#include "compress.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#endif


// 用于应用程序“关于”菜单项的 CAboutDlg 对话框

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

// 对话框数据
	enum { IDD = IDD_ABOUTBOX };

	protected:
	virtual void DoDataExchange(CDataExchange* pDX);    // DDX/DDV 支持

// 实现
protected:
	DECLARE_MESSAGE_MAP()
};

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

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

BEGIN_MESSAGE_MAP(CAboutDlg, CDialog)
END_MESSAGE_MAP()


// CldcDlg 对话框




CldcDlg::CldcDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CldcDlg::IDD, pParent)
	, CcompressFileName(_T(""))
	, H_C_FileName(_T(""))
	, UnC_FileName(_T(""))
	, H_UnC_FileName(_T(""))
{
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}

void CldcDlg::DoDataExchange(CDataExchange* pDX)
{
    CDialog::DoDataExchange(pDX);
    DDX_Text(pDX, IDC_Compress_FileName, CcompressFileName);
    DDX_Text(pDX, IDC_Have_Compress_FileName, H_C_FileName);
    DDX_Text(pDX, IDC_Uncompress_FileName, UnC_FileName);
    DDX_Text(pDX, IDC_Have_Uncompress_FileName, H_UnC_FileName);
    DDX_Control(pDX, IDC_PROGRESS1, compressPlan);
    DDX_Control(pDX, IDC_PROGRESS2, UncompressPlan);
}

BEGIN_MESSAGE_MAP(CldcDlg, CDialog)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	//}}AFX_MSG_MAP
	ON_BN_CLICKED(IDC_Compress, &CldcDlg::OnBnClickedCompress)
	ON_BN_CLICKED(IDC_Browse_compress, &CldcDlg::OnBnClickedBrowsecompress)
	ON_BN_CLICKED(IDC_Uncompress, &CldcDlg::OnBnClickedUncompress)
	ON_BN_CLICKED(IDC__Browse_uncompress, &CldcDlg::OnBnClickedBrowseUncompress)
END_MESSAGE_MAP()


// CldcDlg 消息处理程序

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

	// 将“关于...”菜单项添加到系统菜单中。

	// IDM_ABOUTBOX 必须在系统命令范围内。
	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);
		}
	}

	// 设置此对话框的图标。当应用程序主窗口不是对话框时，框架将自动
	//  执行此操作
	SetIcon(m_hIcon, TRUE);			// 设置大图标
	SetIcon(m_hIcon, FALSE);		// 设置小图标

	// TODO: 在此添加额外的初始化代码

	return TRUE;  // 除非将焦点设置到控件，否则返回 TRUE
}

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

// 如果向对话框添加最小化按钮，则需要下面的代码
//  来绘制该图标。对于使用文档/视图模型的 MFC 应用程序，
//  这将由框架自动完成。

void CldcDlg::OnPaint()
{
	if (IsIconic())
	{
		CPaintDC dc(this); // 用于绘制的设备上下文

		SendMessage(WM_ICONERASEBKGND, reinterpret_cast<WPARAM>(dc.GetSafeHdc()), 0);

		// 使图标在工作矩形中居中
		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;

		// 绘制图标
		dc.DrawIcon(x, y, m_hIcon);
	}
	else
	{
		CDialog::OnPaint();
	}
}

//当用户拖动最小化窗口时系统调用此函数取得光标显示。
//
HCURSOR CldcDlg::OnQueryDragIcon()
{
	return static_cast<HCURSOR>(m_hIcon);
}


void CldcDlg::OnBnClickedCompress()
{
	// TODO: Add your control notification handler code here
		CFile myfile;
		bool mflag=myfile.Open(CcompressFileName,CFile::modeRead);
		if(!mflag)
		{
			AfxMessageBox(_T("请选择要压缩的文件！"));
			return;
		}
      myfile.Close();
		// FILE *ofpp;
		// char ptText[32];
		// strcpy(ptText, /*(const char*)*/CcompressFileName);
		// //LPCTSTR H_C_Fname=H_C_FileName+huf;
  //      // strcat(ptText, ".Huf");
  //       ofpp=fopen("G:\\Office2007TrialActivationKey.txt","rb"); 
  //      if(ofpp==NULL) 
	 //   {
		//  AfxMessageBox(_T("请输入压缩后的文件名!")); 
  //         return; 
	 //   }
		//fclose(ofpp);
		/*CString str1 = "464564879";
			CString str2 = "adasdfadsfwe";
			CString str = str1 + str2;*/

        compress(CcompressFileName,H_C_FileName);
        compressPlan.SetRange32(0,100);
            for(int i=0;i<=100;i++)
            {
                compressPlan.SetPos(i);
            }
		/*ULONGLONG  fileLen=myfile.GetLength();
		int a[256];
		for(int i=0;i<256;i++)
			a[i]=0;
		char b;
		for(int j=0;j<fileLen;j++)
		{
			myfile.Read(&b,1);
			a[b]++;
		}
		MinHeap<int> ap;
		ap.Initialize(a,256,256);*/


        //myfile.Close();

}

void CldcDlg::OnBnClickedBrowsecompress()
{
	// TODO: Add your control notification handler code here
	CFileDialog dlg(TRUE);
	if(dlg.DoModal()==IDOK)
	{
		UpdateData(TRUE);
		CcompressFileName=dlg.GetPathName();
		CString str=dlg.GetFileName();
		int n=str.GetLength();
		str.Delete(n-4,4);
		H_C_FileName=str;
		UpdateData(FALSE);


	}
}

void CldcDlg::OnBnClickedUncompress()
{
	// TODO: Add your control notification handler code here
    CFile myfile;
    bool mflag=myfile.Open(UnC_FileName,CFile::modeRead);
    if(!mflag)
    {
        AfxMessageBox(_T("请选择要解压的文件！"));
        return;
    }
    myfile.Close();
    uncompress(UnC_FileName,H_UnC_FileName);
    UncompressPlan.SetRange32(0,100);
    for(int i=0;i<=100;i++)
    {
        UncompressPlan.SetPos(i);
    }
}

void CldcDlg::OnBnClickedBrowseUncompress()
{
	// TODO: Add your control notification handler code here
    CFileDialog dlg(TRUE);
    if(dlg.DoModal()==IDOK)
    {
        UpdateData(TRUE);
        UnC_FileName=dlg.GetPathName();
        CString str=dlg.GetFileName();
        int n=str.GetLength();
        str.Delete(n-4,4);
        str=str+"(1)";
		CString strLater=CcompressFileName;
		int m=strLater.GetLength();
		strLater.Delete(0,m-4);
		str=str+strLater;
        H_UnC_FileName=str;
        UpdateData(FALSE);


    }
}