文件比较mfcdlg.cpp

MFC编写的,比较两个文件是否相同的程序.程序很简单,主要是做一些测试或示例用.

// 文件比较MFCDlg.cpp : implementation file
//

#include "stdafx.h"
#include "文件比较MFC.h"
#include "文件比较MFCDlg.h"

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

/////////////////////////////////////////////////////////////////////////////
// CMFCDlg dialog

CMFCDlg::CMFCDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CMFCDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CMFCDlg)
		// 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 CMFCDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CMFCDlg)
	DDX_Control(pDX, IDC_EDIT5, m_EchoInfor);
	DDX_Control(pDX, IDC_EDIT4, m_output2);
	DDX_Control(pDX, IDC_EDIT3, m_output1);
	DDX_Control(pDX, IDC_EDIT2, m_input2);
	DDX_Control(pDX, IDC_EDIT1, m_input1);
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CMFCDlg, CDialog)
	//{{AFX_MSG_MAP(CMFCDlg)
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_BN_CLICKED(IDC_BUTTON1, OnOpenFile1)
	ON_BN_CLICKED(IDC_BUTTON2, OnOpenFile2)
	ON_BN_CLICKED(IDC_BUTTON3, OnCompare)
	ON_EN_CHANGE(IDC_EDIT5, OnEchoInfor)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CMFCDlg message handlers

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

void CMFCDlg::OnOpenFile1() 
{
	// TODO: Add your control notification handler code here
	//打开比较文件1
	OPENFILENAME OpenFileName;
	char szDirName[MAX_PATH]="";
	char szFile[MAX_PATH]="\0";
	char szFileTitle[MAX_PATH]="\0";
	char szFilter[]={"所有文件(*.*)\0*.*\0"};

	OpenFileName.lStructSize=sizeof(OPENFILENAME);
	OpenFileName.hwndOwner=NULL;
	OpenFileName.hInstance=NULL;
	OpenFileName.lpstrFilter=szFilter;
	OpenFileName.lpstrCustomFilter=(LPTSTR)NULL;
	OpenFileName.nMaxCustFilter=0L;
	OpenFileName.nFilterIndex=1L;
	OpenFileName.lpstrFile=szFile;
	OpenFileName.nMaxFile=sizeof(szFile);
	OpenFileName.lpstrFileTitle=szFileTitle;
	OpenFileName.nMaxFileTitle=sizeof(szFileTitle);
	OpenFileName.lpstrInitialDir=NULL;
	OpenFileName.lpstrTitle="打开比较文件1";
	OpenFileName.nFileOffset=0;
	OpenFileName.nFileExtension=0;
	OpenFileName.lpstrDefExt=NULL;
	OpenFileName.lCustData=0;
	OpenFileName.Flags=OFN_PATHMUSTEXIST | OFN_FILEMUSTEXIST | OFN_HIDEREADONLY;

	if (GetOpenFileName(&OpenFileName))		//打开成功
	{
		m_input1.SetSel(0,-1);
		m_input1.ReplaceSel(OpenFileName.lpstrFile);		//在"文件1"的输入框中显示文件路径
	}
	else		//打开失败
	{
		if (strcmp(OpenFileName.lpstrFile,"")==0)	//取消了"打开文件"
		{
			return;
		}
		MessageBox("打开比较文件1失败!","失败",MB_OK);
	}
}

void CMFCDlg::OnOpenFile2() 
{
	// TODO: Add your control notification handler code here
	//打开比较文件2
	OPENFILENAME OpenFileName;
	char szDirName[MAX_PATH]="";
	char szFile[MAX_PATH]="\0";
	char szFileTitle[MAX_PATH]="\0";
	char szFilter[]={"所有文件(*.*)\0*.*\0"};

	OpenFileName.lStructSize=sizeof(OPENFILENAME);
	OpenFileName.hwndOwner=NULL;
	OpenFileName.hInstance=NULL;
	OpenFileName.lpstrFilter=szFilter;
	OpenFileName.lpstrCustomFilter=(LPTSTR)NULL;
	OpenFileName.nMaxCustFilter=0L;
	OpenFileName.nFilterIndex=1L;
	OpenFileName.lpstrFile=szFile;
	OpenFileName.nMaxFile=sizeof(szFile);
	OpenFileName.lpstrFileTitle=szFileTitle;
	OpenFileName.nMaxFileTitle=sizeof(szFileTitle);
	OpenFileName.lpstrInitialDir=NULL;
	OpenFileName.lpstrTitle="打开比较文件2";
	OpenFileName.nFileOffset=0;
	OpenFileName.nFileExtension=0;
	OpenFileName.lpstrDefExt=NULL;
	OpenFileName.lCustData=0;
	OpenFileName.Flags=OFN_PATHMUSTEXIST | OFN_FILEMUSTEXIST | OFN_HIDEREADONLY;

	if (GetOpenFileName(&OpenFileName))
	{
		m_input2.SetSel(0,-1);
		m_input2.ReplaceSel(OpenFileName.lpstrFile);		//在"文件2"的输入框中显示文件路径
	}
	else
	{
		if (strcmp(OpenFileName.lpstrFile,"")==0)	//取消了"打开文件"
		{
			return;
		}
		MessageBox("打开比较文件2失败!","失败",MB_OK);
	}
}

void CMFCDlg::OnCompare()			//文件比较按钮
{
	// TODO: Add your control notification handler code here
	//得到两输入框的文件路径长度
	char TextContent1[MAX_PATH]="";
	char TextContent2[MAX_PATH]="";

	int CountInput1=m_input1.GetWindowTextLength();
	int CountInput2=m_input2.GetWindowTextLength();

	if (CountInput1 > MAX_PATH)		//文件1路径过长
	{
		MessageBox("文件1的路径太长啦!","错误",MB_OK);
		return;
	}
	if (CountInput1 == 0)			//文件1路径为空
	{
		MessageBox("文件1路径不能为空!");
		return;
	}

	if (CountInput2 > MAX_PATH)		//文件2路径过长
	{
		MessageBox("文件2的路径太长啦!","错误",MB_OK);
		return;
	}
	if (CountInput2 == 0)			//文件2路径为空
	{
		MessageBox("文件2路径不能为空!");
		return;
	}

	//得到两文件路径
	m_input1.GetLine(1,TextContent1,MAX_PATH);
	m_input2.GetLine(1,TextContent2,MAX_PATH);

	//打开文件
	char diff1[100]="";
	char diff2[100]="";
	char diffInfo1[500]="";
	char diffInfo2[500]="";
	char content1[21],content2[21];
	int ch1,ch2;
	FILE *in1,*in2;
	if ((in1=fopen(TextContent1,"rb"))==NULL)
	{
		MessageBox("打开比较文件1时出错!","错误",MB_OK);
		return;
	}
	if ((in2=fopen(TextContent2,"rb"))==NULL)
	{
		MessageBox("打开比较文件2时出错!","错误",MB_OK);
		return;
	}
	//读文件比较
	ch1=fgetc(in1);
	ch2=fgetc(in2);
	while(!feof(in1) || !feof(in2))
	{
		if (ch1 != ch2)		//两文件内容不相同
		{
			m_output1.SetSel(0,-1);
			m_output1.ReplaceSel("两文件内容不同:\r\n");
			m_output2.SetSel(0,-1);
			m_output2.ReplaceSel("两文件内容不同:\r\n");

			sprintf(diff1,"不同点:\r\n文件1:\r\n位置:%d\r\n字符:%c\r\nASCII:(0x%X)",ftell(in1),ch1,ch1);
			sprintf(diff2,"不同点:\r\n文件2:\r\n位置:%d\r\n字符:%c\r\nASCII:(0x%X)",ftell(in2),ch2,ch2);

			fseek( in1, -1, 1 );
			fseek( in2, -1, 1 );
			fgets( content1, 20, in1 );
			fgets( content2, 20, in2 );
			content1[ strlen(content1)-2 ] = '\0';		//去掉后两个字节,因为可能是换行符
			content2[ strlen(content2)-2 ] = '\0';		//去掉后两个字节,因为可能是换行符

			sprintf(diffInfo1,"您所比较的两个文件内容不相同,\r\n从不同处起的字符串为:\r\n\r\n文件1:%s\r\n文件2:%s\r\n\r\n",content1,content2);
			sprintf(diffInfo2,"文件1 ASCII(16进制):%02X %02X %02X %02X %02X\r\n文件2 ASCII(16进制):%02X %02X %02X %02X %02X",
				content1[0],content1[1],content1[2],content1[3],content1[4],
				content2[0],content2[1],content2[2],content2[3],content2[4]);

			m_output1.ReplaceSel(diff1);
			m_output2.ReplaceSel(diff2);

			m_EchoInfor.SetSel(0,-1);
			m_EchoInfor.ReplaceSel(diffInfo1);
			m_EchoInfor.ReplaceSel(diffInfo2);

			return;
		}
		ch1=fgetc(in1);
		ch2=fgetc(in2);
	}
	fclose (in1);
	fclose (in2);
	//两文件内容相同
	m_output1.SetSel(0,-1);
	m_output1.ReplaceSel("两文件内容相同!\r\n\r\n      ^_^");
	m_output2.SetSel(0,-1);
	m_output2.ReplaceSel("两文件内容相同!\r\n\r\n      ^_^");
	
	if ( strcmp( TextContent1, TextContent2 ) == 0 )			//同一个文件
	{
		m_EchoInfor.SetSel(0,-1);
		m_EchoInfor.ReplaceSel("您比较同一个文件,内容肯定相同啊!!!\r\n\r\n\r\n\t\tO_O");
	}
	else
	{
		m_EchoInfor.SetSel(0,-1);
		m_EchoInfor.ReplaceSel("您所比较的两个文件内容是相同的!!!!\r\n\r\n\r\n\r\n\t\t^_^");
	}
}

void CMFCDlg::OnEchoInfor() 
{
	// 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.
	
	// TODO: Add your control notification handler code here
	
}