dialogp.cpp

该程序是一个对于一个对于以某一直线为边界的两类进行分类

// DialogP.cpp : implementation file
//

#include "stdafx.h"
#include "线性分类器.h"
#include "DialogP.h"
#include "线性分类器Dlg.h"
#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif

/////////////////////////////////////////////////////////////////////////////
// CDialogP dialog


CDialogP::CDialogP(CWnd* pParent /*=NULL*/)
	: CDialog(CDialogP::IDD, pParent)
{
	//{{AFX_DATA_INIT(CDialogP)
	m_w1 = _T("");
	m_w2 = _T("");
	m_w4 = _T("");
	//}}AFX_DATA_INIT
}


void CDialogP::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CDialogP)
	DDX_Control(pDX, IDOK, m_bo);
	DDX_Control(pDX, IDC_STATICf, m_c);
	DDX_Control(pDX, IDC_COMBO1, m_com);
	DDX_Text(pDX, IDC_EDIT1, m_w1);
	DDX_Text(pDX, IDC_EDIT2, m_w2);
	DDX_Text(pDX, IDC_EDIT3, m_w4);
	//}}AFX_DATA_MAP
}


BEGIN_MESSAGE_MAP(CDialogP, CDialog)
	//{{AFX_MSG_MAP(CDialogP)
	ON_WM_ERASEBKGND()
	ON_WM_CLOSE()
	ON_EN_CHANGE(IDC_EDIT1, OnChangeEdit1)
	ON_EN_CHANGE(IDC_EDIT2, OnChangeEdit2)
	ON_EN_CHANGE(IDC_EDIT3, OnChangeEdit3)
	ON_CBN_SELENDOK(IDC_COMBO1, OnSelendokCombo1)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CDialogP message handlers

BOOL CDialogP::OnInitDialog() 
{
	CDialog::OnInitDialog();
	
	// TODO: Add extra initialization here
	m_w1="1";m_w2="0";m_w4="0";
	UpdateData(false);
	mybitmap.LoadBitmap(IDB_BITMAP1);
	m_com.SetCurSel(0);
	return TRUE;  // return TRUE unless you set the focus to a control
	              // EXCEPTION: OCX Property Pages should return FALSE
}

BOOL CDialogP::OnEraseBkgnd(CDC* pDC) 
{
	// TODO: Add your message handler code here and/or call default

		CRect rect;
	GetClientRect(rect);
	   
        CDC memdc;
		BITMAP bm1;
        mybitmap.GetObject(sizeof(BITMAP),&bm1);
		memdc.CreateCompatibleDC(pDC);
        CBitmap* oldbitmap=memdc.SelectObject(&mybitmap);
	pDC->StretchBlt(rect.left,rect.top,rect.Width(),rect.Height(),&memdc,0,0,bm1.bmWidth,bm1.bmHeight,SRCCOPY);
	return true;
}

void CDialogP::OnClose() 
{
	// TODO: Add your message handler code here and/or call default
	CMyDlg* pp1=(CMyDlg*)GetParent();
		pp1->m=m;
		pp1->m_b4.down=false;
	pp1->m_b4.Invalidate();
	CDialog::OnClose();
}

void CDialogP::OnOK() 
{
	// TODO: Add extra validation here
		bool fg=false;
	int a1,a2,a3;
	a1=atoi(m_w1);
    a2=atoi(m_w2);
    a3=atoi(m_w4);
	double t;
	if(a1==0)
	{
		if((-a3/a2)<0||(-a3/a2)>35)
		{
			fg=true;
		}
	}
	if(a2==0)
	{
         if((-a3/a1)<0||(-a3/a1)>35)
		{
			fg=true;
		}
	}
	if(a1!=0&&a2!=0)
	{
	   t=((double)(-a1))/a2;
	   if(t>=0)
	   {
		   double t1;
		   if(a2>0)
		   t1=a2*35+a3;
           else
			t1=-a2*35-a3;
		   if(t1<=0) fg=true;
		   if(a2>0)
		   t1=a1*35+a3;
		   else
           t1=-a1*35-a3;
 
		   if(t1>=0) fg=true;
	   }
	   if(t<0)
	   {
		   double t2;
		   if(a2>0)
		   t2=a3;
		   else
		   t2=-a3;
		   if(t2>=0)fg=true;
		   if(a2>0)
		   t2=35*a1+35*a2+a3;
		   else
            t2=-35*a1-35*a2-a3;
		   if(t2<=0)fg=true;

	   }
	}
	if(fg)
	{
 MessageBox("初始直线越界无法显示","警告",MB_OK | MB_ICONWARNING);
		  return;
	}
	
	CDialog::OnOK();
}

void CDialogP::OnChangeEdit1() 
{
	// TODO: If this is a RICHEDIT control, the control will not
	// send this notification unless you override the CDialog::OnInitDialog()
	// function and call CRichEditCtrl().SetEventMask()
	// with the ENM_CHANGE flag ORed into the mask.
	CString temp=m_w1;
	UpdateData(true);
	if (m_w1.IsEmpty( ))
	{
		return;
	}
  if((m_w1=="0")&&(m_w2=="0"))
  {
	  m_w1=temp;	UpdateData(false);
	  return;

  }
	strcpy(m_c.mychar,"初始函数：");
	if(m_w1!="0")
	{
	if(m_w1!="1")
		strcat(m_c.mychar,m_w1);
    strcat(m_c.mychar,"X");
	}
    if(m_w2!="0")
	{
	if(m_w2.GetAt(0)!='+'&&m_w2.GetAt(0)!='-'&&m_w1!="0")
		strcat(m_c.mychar,"+");
	if(m_w2!="1")
	strcat(m_c.mychar,m_w2);
    strcat(m_c.mychar,"Y");
	}
	if(m_w4!="0")
	{
    if(m_w4.GetAt(0)!='+'&&m_w4.GetAt(0)!='-')
		strcat(m_c.mychar,"+");
		strcat(m_c.mychar,m_w4);
      
	}
strcat(m_c.mychar,"=0");
CRect rectlt1;
GetDlgItem(IDC_STATICf)->GetWindowRect(rectlt1);ScreenToClient(rectlt1);
InvalidateRect(rectlt1,true);
	// TODO: Add your control notification handler code here
	
}

void CDialogP::OnChangeEdit2() 
{
	// TODO: If this is a RICHEDIT control, the control will not
	// send this notification unless you override the CDialog::OnInitDialog()
	// function and call CRichEditCtrl().SetEventMask()
	// with the ENM_CHANGE flag ORed into the mask.
	CString temp=m_w2;
	UpdateData(true);
	if (m_w2.IsEmpty( ))
	{
		return;
	}
  if((m_w1=="0")&&(m_w2=="0"))
  {
	  m_w2=temp;	UpdateData(false);
	  return;

  }
	strcpy(m_c.mychar,"初始函数：");
	if(m_w1!="0")
	{
	if(m_w1!="1")
		strcat(m_c.mychar,m_w1);
    strcat(m_c.mychar,"X");
	}
    if(m_w2!="0")
	{
	if(m_w2.GetAt(0)!='+'&&m_w2.GetAt(0)!='-'&&m_w1!="0")
		strcat(m_c.mychar,"+");
	if(m_w2!="1")
	strcat(m_c.mychar,m_w2);
    strcat(m_c.mychar,"Y");
	}
	if(m_w4!="0")
	{
    if(m_w4.GetAt(0)!='+'&&m_w4.GetAt(0)!='-')
		strcat(m_c.mychar,"+");
		strcat(m_c.mychar,m_w4);
      
	}
strcat(m_c.mychar,"=0");
CRect rectlt1;
GetDlgItem(IDC_STATICf)->GetWindowRect(rectlt1);ScreenToClient(rectlt1);
InvalidateRect(rectlt1,true);
	// TODO: Add your control notification handler code here
	
}

void CDialogP::OnChangeEdit3() 
{
	// TODO: If this is a RICHEDIT control, the control will not
	// send this notification unless you override the CDialog::OnInitDialog()
	// function and call CRichEditCtrl().SetEventMask()
	// with the ENM_CHANGE flag ORed into the mask.
	CString temp=m_w4;
	UpdateData(true);
	if (m_w4.IsEmpty( ))
	{
		return;
	}
  if((m_w1=="0")&&(m_w2=="0"))
  {
	  m_w4=temp;	UpdateData(false);
	  return;

  }
	strcpy(m_c.mychar,"初始函数：");
	if(m_w1!="0")
	{
	if(m_w1!="1")
	strcat(m_c.mychar,m_w1);
    strcat(m_c.mychar,"X");
	}
    if(m_w2!="0")
	{
	if(m_w2.GetAt(0)!='+'&&m_w2.GetAt(0)!='-'&&m_w1!="0")
		strcat(m_c.mychar,"+");
	if(m_w2!="1")
	strcat(m_c.mychar,m_w2);
    strcat(m_c.mychar,"Y");
	}
	if(m_w4!="0")
	{
    if(m_w4.GetAt(0)!='+'&&m_w4.GetAt(0)!='-')
		strcat(m_c.mychar,"+");
		strcat(m_c.mychar,m_w4);
      
	}
strcat(m_c.mychar,"=0");
CRect rectlt1;
GetDlgItem(IDC_STATICf)->GetWindowRect(rectlt1);ScreenToClient(rectlt1);
InvalidateRect(rectlt1,true);
	// TODO: Add your control notification handler code here
	
}

void CDialogP::OnSelendokCombo1() 
{
	// TODO: Add your control notification handler code here
	CMyDlg* pp1=(CMyDlg*)GetParent();

	pp1->m=m_com.GetCurSel();
}