sierpinski_dtdlg.cpp

分形程序

// sierpinski_dtDlg.cpp : implementation file
//

#include "stdafx.h"
#include "sierpinski_dt.h"
#include "sierpinski_dtDlg.h"

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

/////////////////////////////////////////////////////////////////////////////
// CSierpinski_dtDlg dialog

CSierpinski_dtDlg::CSierpinski_dtDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CSierpinski_dtDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CSierpinski_dtDlg)
		// 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 CSierpinski_dtDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CSierpinski_dtDlg)
		// NOTE: the ClassWizard will add DDX and DDV calls here
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CSierpinski_dtDlg, CDialog)
	//{{AFX_MSG_MAP(CSierpinski_dtDlg)
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_BN_CLICKED(IDC_CANCLE, OnCancle)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CSierpinski_dtDlg message handlers

BOOL CSierpinski_dtDlg::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 CSierpinski_dtDlg::OnPaint() 
{
	AfxGetMainWnd()->SetWindowText("Sierpinski地毯（分形频道：fractal.cn）2004");
	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 CSierpinski_dtDlg::OnQueryDragIcon()
{
	return (HCURSOR) m_hIcon;
}



void CSierpinski_dtDlg::OnOK() 
{
	// TODO: Add extra validation here
	CClientDC dc(this);
	CBrush brush(RGB(0,0,0));
	dc.SelectObject(&brush);
	dc.Rectangle(CRect(10,10,400,400));
	Sier(10,10,400,400,5);
	//CDialog::OnOK();
}

void CSierpinski_dtDlg::OnCancle() 
{
	// TODO: Add your control notification handler code here
	CDialog::OnOK();
}

void CSierpinski_dtDlg::Sier(double x1, double y1, double x2, double y2, int n)
{
	CClientDC dc(this);
	double W,L;
	if(n>1)
	{
		L=x2-x1;W=y2-y1;
		dc.MoveTo(int(x1+L/3),int(y1+W/3));
		dc.Rectangle(CRect(int(x1+L/3),int(y1+W/3),int(x2-L/3),int(y2-W/3)));
		Sier(x1,y1,x1+L/3,y1+W/3,n-1);
		Sier(x1+L/3,y1,x2-L/3,y1+W/3,n-1);
        Sier(x2-L/3,y1,x2,y1+W/3,n-1);
        Sier(x1,y1+W/3,x1+L/3,y2-W/3,n-1);
        Sier(x2-L/3,y1+W/3,x2,y2-W/3,n-1);
        Sier(x1,y2-W/3,x1+L/3,y2,n-1);
        Sier(x1+L/3,y2-W/3,x2-L/3,y2,n-1);
        Sier(x2-L/3,y2-W/3,x2,y2,n-1);
	}
}