// HilbertDlg.cpp : implementation file
//

#include "stdafx.h"
#include "Hilbert.h"
#include "HilbertDlg.h"
#include "math.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()

/////////////////////////////////////////////////////////////////////////////
// CHilbertDlg dialog

CHilbertDlg::CHilbertDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CHilbertDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CHilbertDlg)
	m_n1 = 1;
	//}}AFX_DATA_INIT
	// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}

void CHilbertDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CHilbertDlg)
	DDX_Text(pDX, IDC_EDIT1, m_n1);
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CHilbertDlg, CDialog)
	//{{AFX_MSG_MAP(CHilbertDlg)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_BN_CLICKED(IDC_BUTTON1, Onbegin)
	ON_BN_CLICKED(IDC_BUTTON2, Onexit)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CHilbertDlg message handlers

BOOL CHilbertDlg::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
	
	H=384;
	// TODO: Add extra initialization here
	
	return TRUE;  // return TRUE  unless you set the focus to a control
}

void CHilbertDlg::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 CHilbertDlg::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 CHilbertDlg::OnQueryDragIcon()
{
	return (HCURSOR) m_hIcon;
}

void CHilbertDlg::Onbegin() 
{
	// TODO: Add your control notification handler code here
	
	CClientDC dc(this);
	CPen pen;
	pen.CreatePen(PS_SOLID,0,RGB(5,0,5));
	dc.SelectObject(&pen);
    int j;
	UpdateData(true);
	i=m_n1;
	t=i;
    
	
	

	//CString str;
	//str.Format("%d",i);MessageBox(str);
	x=459;
	y=204;
	
	
		for(;i>0;i--)
		{
		  x=439;
	      y=204;
		  t=i;
		for(j=0;j<t;j++)
		{
			x+=H/(int)pow(2,j)/2/2;
			y-=H/(int)pow(2,j)/2/2;
		}
		  A(i);
		}
	
}

void CHilbertDlg::A(int i)
{

	CClientDC dc(this);
	dc.MoveTo(x,y);
	CPen pen;
	pen.CreatePen(PS_SOLID,1,RGB(5,0,5));
	dc.SelectObject(&pen);
    int h=0;
	h=H/(int)pow(2,t);
	if(i>1)
	{
	
	D(i-1);
	dc.MoveTo(x,y);
	x=x-h;
	dc.LineTo(x,y);
	dc.MoveTo(x,y);
/*	CString str;
	str.Format("%d",x);MessageBox(str);
	
	str.Format("%d",y);MessageBox(str);*/
	A(i-1);
	dc.MoveTo(x,y);
	y=y+h;
    dc.LineTo(x,y);
	dc.MoveTo(x,y);
	
	A(i-1);
	dc.MoveTo(x,y);
	x=x+h;
    dc.LineTo(x,y);
	dc.MoveTo(x,y);
	
	B(i-1);
	}
	else if(i==1)
	{
	x=x-h;
	dc.LineTo(x,y);
	dc.MoveTo(x,y);
	y=y+h;
    dc.LineTo(x,y);
	dc.MoveTo(x,y);
    x=x+h;
    dc.LineTo(x,y);
	dc.MoveTo(x,y);
	
	}

}

void CHilbertDlg::B(int i)
{
	CClientDC dc(this);
	dc.MoveTo(x,y);
	CPen pen;
	pen.CreatePen(PS_SOLID,1,RGB(5,0,5));
	dc.SelectObject(&pen);

	int h=0;
	h=H/(int)pow(2,t);
	if(i>1)
	{
	
	C(i-1);
	dc.MoveTo(x,y);
	y=y-h;
    dc.LineTo(x,y);
	dc.MoveTo(x,y);
	
	B(i-1);
	dc.MoveTo(x,y);
	x=x+h;
    dc.LineTo(x,y);
	dc.MoveTo(x,y);
	
	
B(i-1);
	dc.MoveTo(x,y);
	y=y+h;
    dc.LineTo(x,y);
	dc.MoveTo(x,y);
	A(i-1);
	}
    else if(i==1)
	{
	y=y-h;
	dc.LineTo(x,y);
	dc.MoveTo(x,y);
	x=x+h;
    dc.LineTo(x,y);
	dc.MoveTo(x,y);
    y=y+h;
    dc.LineTo(x,y);
	dc.MoveTo(x,y);
	
	}
}

void CHilbertDlg::C(int i)
{
	CClientDC dc(this);
	dc.MoveTo(x,y);
	CPen pen;
	pen.CreatePen(PS_SOLID,1,RGB(5,0,5));
	dc.SelectObject(&pen);

	int h=0;
	h=H/(int)pow(2,t);
	if(i>1)
	{
	
    B(i-1);
	dc.MoveTo(x,y);
	x=x+h;
    dc.LineTo(x,y);
	dc.MoveTo(x,y);	
	
	C(i-1);
	dc.MoveTo(x,y);
	y=y-h;
    dc.LineTo(x,y);
	dc.MoveTo(x,y);
	
    C(i-1);
	dc.MoveTo(x,y);
	x=x-h;
    dc.LineTo(x,y);
	dc.MoveTo(x,y);
	
	D(i-1);
	}
    else if(i==1)
	{
	x=x+h;
	dc.LineTo(x,y);
	dc.MoveTo(x,y);
	y=y-h;
    dc.LineTo(x,y);
	dc.MoveTo(x,y);
    x=x-h;
    dc.LineTo(x,y);
	dc.MoveTo(x,y);
	
	}
}

void CHilbertDlg::D(int i)
{
	CClientDC dc(this);
	dc.MoveTo(x,y);
	CPen pen;
	pen.CreatePen(PS_SOLID,1,RGB(5,0,5));
	dc.SelectObject(&pen);

	int h=0;
	h=H/(int)pow(2,t);
	if(i>1)
	{
	
    A(i-1);
	dc.MoveTo(x,y);
	y=y+h;
    dc.LineTo(x,y);
	dc.MoveTo(x,y);
	
    D(i-1);
	dc.MoveTo(x,y);
	x=x-h;
    dc.LineTo(x,y);
	dc.MoveTo(x,y);
	
	D(i-1);
	dc.MoveTo(x,y);
	y=y-h;
    dc.LineTo(x,y);
	dc.MoveTo(x,y);
	
	C(i-1);
    }
    else if(i==1)
	{
	y=y+h;
	dc.LineTo(x,y);
	dc.MoveTo(x,y);
	x=x-h;
    dc.LineTo(x,y);
	dc.MoveTo(x,y);
    y=y-h;
    dc.LineTo(x,y);
	dc.MoveTo(x,y);
	
	}
}

void CHilbertDlg::Onexit() 
{
	// TODO: Add your control notification handler code here
	CDialog::OnCancel();
}