sunhongendlg.cpp

一阶熵的计算,可以直观的看到一阶熵是如何计算的

// SunHongEnDlg.cpp : 实现文件
//

#include "stdafx.h"
#include "SunHongEn.h"
#include "SunHongEnDlg.h"
#include<math.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()


// CSunHongEnDlg 对话框




CSunHongEnDlg::CSunHongEnDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CSunHongEnDlg::IDD, pParent)
	, m_CSequence(_T(""))
	, m_FNumerator(0)
	, m_FDenominator(0)
	, m_FAnswer(0)
	, m_COther(_T(""))
{
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}

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

BEGIN_MESSAGE_MAP(CSunHongEnDlg, CDialog)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	//}}AFX_MSG_MAP
	ON_BN_CLICKED(IDC_BUTTON1, &CSunHongEnDlg::OnBnClickedButton1)
	ON_BN_CLICKED(IDC_BUTTON2, &CSunHongEnDlg::OnBnClickedButton2)
END_MESSAGE_MAP()


// CSunHongEnDlg 消息处理程序

BOOL CSunHongEnDlg::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 CSunHongEnDlg::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 CSunHongEnDlg::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 CSunHongEnDlg::OnQueryDragIcon()
{
	return static_cast<HCURSOR>(m_hIcon);
}


void CSunHongEnDlg::OnBnClickedButton1()
{
	// TODO: 在此添加控件通知处理程序代码
	static int num=0;
	
	N=GetDlgItemInt(IDC_EDIT5);

	if(num<N)
	{
		char ch1[10],ch2[10];
		m_CSequence.Format("Number:%d",num);
		SetDlgItemText(IDC_Sequence,m_CSequence);

		GetDlgItemText(IDC_EDIT1,ch1,10);
		GetDlgItemText(IDC_EDIT2,ch2,10);

		m_FNumerator=atof(ch1);
		m_FDenominator=atof(ch2);
		if (m_FDenominator==0)
		{
			AfxMessageBox("分母为零！");
		}
		m_FAnswer=m_FNumerator/m_FDenominator;

		m_CAnswer.Format("%3f",m_FAnswer);

		SetDlgItemText(IDC_EDIT4,m_CAnswer);
		
		c[num]=m_FAnswer;
		num++;
	}
	else
	{
		CString m_edit1,m_edit2;
		m_edit1.Format("%3f",m_FNumerator);
		m_edit2.Format("%3f",m_FDenominator);
		SetDlgItemText(IDC_EDIT1,m_edit1);
		SetDlgItemText(IDC_EDIT2,m_edit2);
		AfxMessageBox("超过预定限制");
	}
}

void CSunHongEnDlg::OnBnClickedButton2()
{
	// TODO: 在此添加控件通知处理程序代码
	int i=0;

	CString m_c[N1],m_d[N1],m_i[N1],m_h;
	for(i=0;i<N;i++)
	{
		m_c[i].Format("c[%d] is : %3f \n" ,i,c[i]);
		m_COther+=m_c[i];
	}
	lot = log10((double)2);
	for(i=0;i<N;i++)
	{
		d[i] = - log10( c[i] );
		m_d[i].Format("log(c[%d]) is %3f \n",i,d[i]);
		m_COther+=m_d[i];
	}

	for(i=0;i<N;i++)
	{
		I[i] = d[i] / lot ;
		m_i[i].Format("I[%d] is %3f \n",i,I[i]);
		m_COther+=m_i[i];
	}
	H = 0;
	for(i=0;i<N;i++)
	{
		H += c[i] * I[i];
	}
	
	m_h.Format("H(X) is : %3f \n",H);

	m_COther+=m_h;
	
	SetDlgItemText(IDC_EDIT3,m_COther);
}