dialogdlg.cpp

一个简单还原二叉树并在屏幕输出树形的小程序

// DialogDlg.cpp : implementation file
//

#include "stdafx.h"
#include "Dialog.h"
#include "DialogDlg.h"
#include "BinTree.h"
#include "bc.h"
#include <stack>


#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()

/////////////////////////////////////////////////////////////////////////////
// CDialogDlg dialog

CDialogDlg::CDialogDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CDialogDlg::IDD, pParent)
{

	//{{AFX_DATA_INIT(CDialogDlg)
	m_sEdit1 = _T("");
	m_sEdit2 = _T("");
	m_sEdit3 = _T("");
	//}}AFX_DATA_INIT
	// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
	//CWnd::SetWindowText("0710339 计算机 封磊 /n数据结构第二次作业");
}

void CDialogDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CDialogDlg)
	DDX_Text(pDX, IDC_EDIT1, m_sEdit1);
	DDX_Text(pDX, IDC_EDIT2, m_sEdit2);
	DDX_Text(pDX, IDC_EDIT3, m_sEdit3);
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CDialogDlg, CDialog)
	//{{AFX_MSG_MAP(CDialogDlg)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_BN_CLICKED(IDC_BUTTON1, OnButtonClick)
	ON_BN_CLICKED(IDC_BUTTON2, OnButtonClick2)
	ON_BN_CLICKED(IDC_BUTTON3, OnButtonClick3)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CDialogDlg message handlers

BOOL CDialogDlg::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
	m_sEdit1 = "输入前序遍历结果";//初始化编辑框
	m_sEdit2 = "输入中序遍历结果";
	m_sEdit3 = "输入遍历结果字符数";
	UpdateData(false);
	return TRUE;  // return TRUE  unless you set the focus to a control
}

void CDialogDlg::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.

int CDialogDlg::nM_X = 50;
int CDialogDlg::nM_Y = 50;
void CDialogDlg::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();
	}
}

void CDialogDlg::DrawText(char cVal,int t)//屏幕上打印二叉树结点
{
	nM_Y = 50;
	CWnd* wnd = AfxGetMainWnd();
	CDC * dc = wnd->GetDC();
	nM_Y = nM_Y + t;
	nM_X = nM_X + 20;
	dc->TextOut(nM_X,nM_Y,cVal);
	
	
}


// The system calls this to obtain the cursor to display while the user drags
//  the minimized window.
HCURSOR CDialogDlg::OnQueryDragIcon()
{
	return (HCURSOR) m_hIcon;
}


void CDialogDlg::OnButtonClick() //建立二叉树并输出
{
	int nSize;
	bool sign = false;
		UpdateData(true);
	    nSize = atoi(m_sEdit3);
		
	if((m_sEdit1 == "输入前序遍历结果")&&(m_sEdit2 == "输入中序遍历结果")&&(m_sEdit3 == "输入遍历结果字符数"))
	{
		MessageBox("未输入有效地遍历结果");
		sign = true;
	}
	else
	{
		if(nSize != m_sEdit1.GetLength())
		{
			MessageBox("前序遍历字符串与长度不匹配");
			sign = true;
		}
		if(nSize != m_sEdit2.GetLength())
		{
			MessageBox("后序遍历字符串与长度不匹配");
			sign = true;
		}
	}
	char * sPre = (char*)(LPCTSTR)m_sEdit1;
	char * sMid = (char*)(LPCTSTR)m_sEdit2;
	//ABDCEGFHI,BDAGECHFI
	if(!sign)
	{
	cb = CBinTreeNode::CreatTree(sPre, sMid, nSize);
	CBinTreeNode::BTInOrder(cb, 0);
	}
}


void CDialogDlg::OnButtonClick2() //一键测试按钮
{
	m_sEdit1 = "ABDCEGFHI";
	m_sEdit2 = "BDAGECHFI";
	m_sEdit3 = "9";
	UpdateData(false);
	cb = CBinTreeNode::CreatTree("ABDCEGFHI", "BDAGECHFI", 9);
	CBinTreeNode::BTInOrder(cb, 0);
}

void CDialogDlg::OnButtonClick3() //清除图像
{
	Invalidate();
	CDialogDlg::nM_X = 50;
	CDialogDlg::nM_Y = 50;	
}