数字2的识别dlg.cpp

实现3节倒立摆的功能

// 数字2的识别Dlg.cpp : implementation file
//

#include "stdafx.h"
#include "数字2的识别.h"
#include "数字2的识别Dlg.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()

/////////////////////////////////////////////////////////////////////////////
// CMy2Dlg dialog

CMy2Dlg::CMy2Dlg(CWnd* pParent /*=NULL*/)
	: CDialog(CMy2Dlg::IDD, pParent)
{
	n=0;

	for(int i=0;i<4;i++)
	{
		x[i]=-1000;
		y[i]=-1000;
	}

	m_x1=-1000;
	m_y1=-1000;
	m_x2=-1000;
	m_y2=-1000;
	m_x3=-1000;
	m_y3=-1000;

	m_able1=false;
	m_able2=false;

	//{{AFX_DATA_INIT(CMy2Dlg)
		// NOTE: the ClassWizard will add member initialization here
	//}}AFX_DATA_INIT
	// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}

void CMy2Dlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CMy2Dlg)
		// NOTE: the ClassWizard will add DDX and DDV calls here
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CMy2Dlg, CDialog)
	//{{AFX_MSG_MAP(CMy2Dlg)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_WM_LBUTTONDOWN()
	ON_WM_MOUSEMOVE()
	ON_WM_RBUTTONDOWN()
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CMy2Dlg message handlers

BOOL CMy2Dlg::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 CMy2Dlg::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 CMy2Dlg::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 CMy2Dlg::OnQueryDragIcon()
{
	return (HCURSOR) m_hIcon;
}

void CMy2Dlg::OnLButtonDown(UINT nFlags, CPoint point) 
{
	CClientDC dc(this);			
	CRect rect;
	GetClientRect(&rect);
	dc.FillRect(&rect,CBrush::FromHandle((HBRUSH)GetStockObject(LTGRAY_BRUSH)));

	m_x4=point.x;
	m_y4=point.y;

	m_x2=point.x;
	m_y2=point.y;

	x[0]=point.x;
	y[0]=point.y;
	// TODO: Add your message handler code here and/or call default
	
	CDialog::OnLButtonDown(nFlags, point);
}

void CMy2Dlg::OnMouseMove(UINT nFlags, CPoint point) 
{
	if(nFlags&&MK_LBUTTON)
	{
		CClientDC  dc(this);
		dc.MoveTo(m_x4,m_y4);
		dc.LineTo(point.x,point.y);
		if(n>1)
		{
			m_x1=m_x2;
			m_y1=m_y2;
			
			m_x2=m_x3;
			m_y2=m_y3;

			m_x3=point.x;
			m_y3=point.y;
		}

		n=n+30;


		if(m_x1!=1000&&m_y1!=-1000&&m_x2!=-1000&&m_y2!=-1000&&m_x3!=-1000&&m_y3!=-1000)
		{
				if((m_x1<=m_x2&&m_x2<=m_x3)&&(m_y1>=m_y2&&m_y3>=m_y2)
					||(m_y1<=m_y2&&m_y3<=m_y2)&&(m_x1<=m_x2&&m_x2>=m_x3))
				{
					x[1]=m_x2;
					y[1]=m_y2;
					m_able1=true;
			
				}	
		}

		
		if(m_able1)
		{
			if(m_x1!=1000&&m_y1!=-1000&&m_x2!=-1000&&m_y2!=-1000&&m_x3!=-1000&&m_y3!=-1000)
			{
					if((m_x1>=m_x2&&m_x2<=m_x3)&&(m_y1>=m_y2&&m_y3<=m_y2)
						||(m_y1<=m_y2&&m_y3>=m_y2)&&(m_x1>=m_x2&&m_x2<=m_x3))
					{
						x[2]=m_x2;
						y[2]=m_y2;
						m_able2=true;
					
					}
				
			}
		}
		
		m_x4=point.x;
		m_y4=point.y;
	}
	// TODO: Add your message handler code here and/or call default
	
	CDialog::OnMouseMove(nFlags, point);
}

void CMy2Dlg::OnRButtonDown(UINT nFlags, CPoint point) 
{
	x[3]=point.x;
	y[3]=point.y;


	
		if(m_able2)//****************
		{
			if(m_x1!=1000&&m_y1!=-1000&&m_x2!=-1000&&m_y2!=-1000&&m_x3!=-1000&&m_y3!=-1000)
			{
				double  k;
				if(x[3]!=x[2])
					k=(y[3]-y[2])/(x[3]-x[2]);
				else
					k=(y[3]-y[2])/0.000001;
				if(k<=0.1&&k>=-0.1)
					MessageBox("这是2!","识别结果!",MB_OK+MB_ICONEXCLAMATION);
				
				else
					MessageBox("这不是2!","识别结果!");	
			}
		}

	// TODO: Add your message handler code here and/or call default
	
	CDialog::OnRButtonDown(nFlags, point);
}