hfmtreedlg.cpp

哈夫曼树结构运算

// HFMTREEDlg.cpp : implementation file
//m_stringin

#include "stdafx.h"
#include "HFMTREE.h"
#include "HFMTREEDlg.h"
#include "qHFMTREE.cpp"

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

/////////////////////////////////////////////////////////////////////////////
// CHFMTREEDlg dialog
HFMTree m_hfmtree;	

CHFMTREEDlg::CHFMTREEDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CHFMTREEDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CHFMTREEDlg)
	m_disphfmtreedata = _T("");
	m_hfmtreefname = _T("");
	m_stringout = _T("");
	m_radio_stringin = -1;
	m_stringin = _T("");
	m_stringlen = 0;
	m_codelen = 0;
	//}}AFX_DATA_INIT
	// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}

void CHFMTREEDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CHFMTREEDlg)
	DDX_Control(pDX, IDC_EDIT_STRINGOUT, m_edit_stringout);
	DDX_Control(pDX, IDC_EDIT_STRINGIN, m_edit_stringin);
	DDX_Text(pDX, IDC_EDIT_DISPHFMTREE, m_disphfmtreedata);
	DDX_Text(pDX, IDC_EDIT_HFMTREEFNAME, m_hfmtreefname);
	DDX_Text(pDX, IDC_EDIT_STRINGOUT, m_stringout);
	DDX_Radio(pDX, IDC_RADIO_STRINGIN, m_radio_stringin);
	DDX_Text(pDX, IDC_EDIT_STRINGIN, m_stringin);
	DDX_Text(pDX, IDC_EDIT_STRINGLEN, m_stringlen);
	DDX_Text(pDX, IDC_EDIT_CODELEN, m_codelen);
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CHFMTREEDlg, CDialog)
	//{{AFX_MSG_MAP(CHFMTREEDlg)
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_BN_CLICKED(IDC_BUTTON_HFMTREEFNAME, OnButtonHfmtreefname)
	ON_BN_CLICKED(IDC_BUTTON_CREATEHFMTREE, OnButtonCreatehfmtree)
	ON_EN_CHANGE(IDC_EDIT_STRINGIN, OnChangeEditStringin)
	ON_BN_CLICKED(IDC_RADIO_STRINGIN, OnRadioStringin)
	ON_BN_CLICKED(IDC_RADIO_STRINGOUT, OnRadioStringout)
	ON_BN_CLICKED(IDC_BUTTON_STRING_CODE, OnButtonStringCode)
	ON_BN_CLICKED(IDC_BUTTON_CODE_STRING, OnButtonCodeString)
	ON_EN_CHANGE(IDC_EDIT_STRINGOUT, OnChangeEditStringout)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CHFMTREEDlg message handlers

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

	// 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
}

// 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 CHFMTREEDlg::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 CHFMTREEDlg::OnQueryDragIcon()
{
	return (HCURSOR) m_hIcon;
}

void CHFMTREEDlg::OnButtonHfmtreefname() 
{
    CFileDialog dlg(true);
	if(dlg.DoModal()==IDOK)
	{
	    m_hfmtreefname=dlg.GetFileName();
		UpdateData(false);
	}	
}

void CHFMTREEDlg::OnButtonCreatehfmtree() 
{
	if(m_hfmtreefname!="")
    {
		m_hfmtree.CreatHFMTree(m_hfmtreefname);
		m_hfmtree.CreatHFMCode();
		m_hfmtree.PrintHFMTree(m_disphfmtreedata);
		UpdateData(false);
	}
	else
	{
	    AfxMessageBox("未选文件，不能生成!");
	}
	m_edit_stringin.SetReadOnly(true);
	m_edit_stringout.SetReadOnly(true);
	m_radio_stringin=-1;
	UpdateData(false);	
}

void CHFMTREEDlg::OnChangeEditStringin() 
{
    OnButtonStringCode() ;
	
}

void CHFMTREEDlg::OnRadioStringin() 
{
	m_edit_stringin.SetReadOnly(false);
	m_edit_stringout.SetReadOnly(true);	
}

void CHFMTREEDlg::OnRadioStringout() 
{
	m_edit_stringin.SetReadOnly(true);
	m_edit_stringout.SetReadOnly(false);	
}

void CHFMTREEDlg::OnButtonStringCode() 
{
	UpdateData(true);
	if(m_stringin!="")
	{
		m_hfmtree.String_Code(m_stringin,m_stringout);
		m_stringlen=GetLength(m_stringin);
		m_codelen=GetLength(m_stringout);
		UpdateData(false);
	}	
}

void CHFMTREEDlg::OnButtonCodeString() 
{
	UpdateData(true);
	if(m_stringout!="")
	{
		m_hfmtree.Code_String(m_stringout,m_stringin);
		m_stringlen=GetLength(m_stringin);
		m_codelen=GetLength(m_stringout);
		UpdateData(false);
	}	
}

void CHFMTREEDlg::OnChangeEditStringout() 
{
    OnButtonCodeString();
	
}

int CHFMTREEDlg::GetLength(LPCTSTR m_str)
{
	int len=0;
    for(int i=0;m_str[i]!=0;i++)
	{
	  if((m_str[i]!='\r')&&(m_str[i]!='\n'))
		  len++;
	  else
		  i++;
	}
	return len;
}