fengshudlg.cpp

分数计算的小工具,比较不错. 分数计算的小工具,比较不错.

// FengShuDlg.cpp : implementation file
//

#include "stdafx.h"
#include "FengShu.h"
#include "FengShuDlg.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()

/////////////////////////////////////////////////////////////////////////////
// CFengShuDlg dialog

CFengShuDlg::CFengShuDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CFengShuDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CFengShuDlg)
	m_xx = 0;
	m_ax = 0;
	m_ay = 0;
	m_bx = 0;
	m_by = 0;
	m_mm = 0;
	m_nn = 0;
	m_yy = 0;
	m_zz = 0;
	//}}AFX_DATA_INIT
	// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}

void CFengShuDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CFengShuDlg)
	DDX_Text(pDX, IDC_XX, m_xx);
	DDX_Text(pDX, IDC_AX, m_ax);
	DDX_Text(pDX, IDC_AY, m_ay);
	DDX_Text(pDX, IDC_BX, m_bx);
	DDX_Text(pDX, IDC_BY, m_by);
	DDX_Text(pDX, IDC_MM, m_mm);
	DDX_Text(pDX, IDC_NN, m_nn);
	DDX_Text(pDX, IDC_YY, m_yy);
	DDX_Text(pDX, IDC_ZZ, m_zz);
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CFengShuDlg, CDialog)
	//{{AFX_MSG_MAP(CFengShuDlg)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_BN_CLICKED(IDC_ADD, OnAdd)
	ON_BN_CLICKED(IDC_SUB, OnSub)
	ON_BN_CLICKED(IDC_MUL, OnMul)
	ON_BN_CLICKED(IDC_DIV, OnDiv)
	ON_BN_CLICKED(IDCANCEL2, OnClear)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CFengShuDlg message handlers

BOOL CFengShuDlg::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 CFengShuDlg::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 CFengShuDlg::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 CFengShuDlg::OnQueryDragIcon()
{
	return (HCURSOR) m_hIcon;
}

void CFengShuDlg::OnOK() 
{
	// TODO: Add extra validation here
	
UpdateData(TRUE);
switch (flag)
{
case 1:		//加法运算
	tempa=m_bx*m_by;	//通分
	tempb=m_ax*m_by+m_bx*m_ay;
	//分子分母进行约分,若有进位,记录下来
	if (tempa>tempb)	//分母大于分子
		{tempc=tempa;
		tempd=tempb;
			for (i=1;i<=tempd;i++)
			{
			if ((tempc%i==0)&&(tempd%i==0))
				{
				tempc=tempc/i;
				tempd=tempd/i;
				i=1;
				}
			}
		tempe=0;	//进位为0
		tempa=tempc;
		tempb=tempd;
		}
	else
	{
		if(tempa<tempb)		//分母小于分子
		{tempc=tempb;
		tempd=tempa;
		for (i=1;i<=tempd;i++)
			{
			if ((tempc%i==0)&&(tempd%i==0))
				{
				tempc=tempc/i;
				tempd=tempd/i;
				i=1;
				}
			}
		tempe=tempc/tempd;	//进位为分子除以分母的商
		tempc=tempc%tempd;
		tempa=tempd;
		tempb=tempc;
		}
		if(tempa==tempb)	//分母等于分子
		{
		tempe=1;
		tempb=0;
		}
	}
	//得出分母和分子的结果
	m_zz=m_xx+m_yy+tempe;
	m_mm=tempb;
	m_nn=tempa;
	break;
case 2:		//减法运算
	tempa=m_bx*m_by;	//通分
	while (m_ax*m_by<m_bx*m_ay)	//分数部分减不够的,从整数部分借一再减,若还减不够,再借，，，
	{
		m_xx=m_xx-1;
		m_ax=1*m_bx+m_ax;
	}
	tempb=m_ax*m_by-m_bx*m_ay;
	//分子分母进行约分,若有进位,记录下来
	if (tempa>tempb)	//分母大于分子
		{tempc=tempa;
		tempd=tempb;
			for (i=1;i<=tempd;i++)
			{
			if ((tempc%i==0)&&(tempd%i==0))
				{
				tempc=tempc/i;
				tempd=tempd/i;
				i=1;
				}
			}
		tempe=0;	//进位为0
		tempa=tempc;
		tempb=tempd;
		}
	else
	{
		if(tempa<tempb)		//分母小于分子
		{tempc=tempb;
		tempd=tempa;
		for (i=1;i<=tempd;i++)
			{
			if ((tempc%i==0)&&(tempd%i==0))
				{
				tempc=tempc/i;
				tempd=tempd/i;
				i=1;
				}
			}
		tempe=tempc/tempd;	//进位为分子除以分母的商
		tempc=tempc%tempd;
		tempa=tempd;
		tempb=tempc;
		}
		if(tempa==tempb)	//分母等于分子
		{
		tempe=1;
		tempb=0;
		}
	}
	//得出分母和分子的结果
	m_zz=m_xx-m_yy+tempe;
	m_mm=tempb;
	m_nn=tempa;
	break;
case 3:
	tempa=m_bx*m_by;
	m_ax=m_xx*m_bx+m_ax;
	m_ay=m_yy*m_by+m_ay;
	m_xx=0;
	m_yy=0;
	tempb=m_ax*m_ay;
	//分子分母进行约分,若有进位,记录下来
	if (tempa>tempb)	//分母大于分子
		{tempc=tempa;
		tempd=tempb;
			for (i=1;i<=tempd;i++)
			{
			if ((tempc%i==0)&&(tempd%i==0))
				{
				tempc=tempc/i;
				tempd=tempd/i;
				i=1;
				}
			}
		tempe=0;	//进位为0
		tempa=tempc;
		tempb=tempd;
		}
	else
	{
		if(tempa<tempb)		//分母小于分子
		{tempc=tempb;
		tempd=tempa;
		for (i=1;i<=tempd;i++)
			{
			if ((tempc%i==0)&&(tempd%i==0))
				{
				tempc=tempc/i;
				tempd=tempd/i;
				i=1;
				}
			}
		tempe=tempc/tempd;	//进位为分子除以分母的商
		tempc=tempc%tempd;
		tempa=tempd;
		tempb=tempc;
		}
		if(tempa==tempb)	//分母等于分子
		{
		tempe=1;
		tempb=0;
		}
	}
	//得出分母和分子的结果
	m_zz=tempe;
	m_mm=tempb;
	m_nn=tempa;
	break;
case 4:
	m_ax=m_xx*m_bx+m_ax;
	m_ay=m_yy*m_by+m_ay;
	tempa=m_bx*m_ay;
	tempb=m_ax*m_by;
	//分子分母进行约分,若有进位,记录下来
	if (tempa>tempb)	//分母大于分子
		{tempc=tempa;
		tempd=tempb;
			for (i=1;i<=tempd;i++)
			{
			if ((tempc%i==0)&&(tempd%i==0))
				{
				tempc=tempc/i;
				tempd=tempd/i;
				i=1;
				}
			}
		tempe=0;	//进位为0
		tempa=tempc;
		tempb=tempd;
		}
	else
	{
		if(tempa<tempb)		//分母小于分子
		{tempc=tempb;
		tempd=tempa;
		for (i=1;i<=tempd;i++)
			{
			if ((tempc%i==0)&&(tempd%i==0))
				{
				tempc=tempc/i;
				tempd=tempd/i;
				i=1;
				}
			}
		tempe=tempc/tempd;	//进位为分子除以分母的商
		tempc=tempc%tempd;
		tempa=tempd;
		tempb=tempc;
		}
		if(tempa==tempb)	//分母等于分子
		{
		tempe=1;
		tempb=0;
		}
	}
	//得出分母和分子的结果
	m_zz=tempe;
	m_mm=tempb;
	m_nn=tempa;
	break;
}
UpdateData(FALSE);
}

void CFengShuDlg::OnAdd() 
{
	// TODO: Add your control notification handler code here
	flag=1;
	
}

void CFengShuDlg::OnSub() 
{
	// TODO: Add your control notification handler code here
	flag=2;
	
}

void CFengShuDlg::OnMul() 
{
	// TODO: Add your control notification handler code here
	flag=3;
	
}

void CFengShuDlg::OnDiv() 
{
	// TODO: Add your control notification handler code here
	flag=4;
	
}

void CFengShuDlg::OnCancel() 
{
	// TODO: Add extra cleanup here
	
	CDialog::OnCancel();
}

void CFengShuDlg::OnClear() 
{
	// TODO: Add your control notification handler code here
	UpdateData(TRUE);
	m_xx=0;
	m_ax=0;
	m_bx=0;
	m_yy=0;
	m_ay=0;
	m_by=0;
	m_zz=0;
	m_mm=0;
	m_nn=0;
	UpdateData(FALSE);
}