houcrc32view.cpp

该源码演示了如何计算字串的CRC32及文件的CRC32

// HouCRC32View.cpp : CHouCRC32View 类的实现
//

#include "stdafx.h"
#include "HouCRC32.h"

#include "HouCRC32Doc.h"
#include "HouCRC32View.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#endif


// CHouCRC32View

IMPLEMENT_DYNCREATE(CHouCRC32View, CView)

BEGIN_MESSAGE_MAP(CHouCRC32View, CView)
	// 标准打印命令
	//{{AFX_MSG_MAP(CHouCRC32View)
	ON_WM_CREATE()
	//}}AFX_MSG_MAP
	ON_EN_CHANGE(IDC_EDIT, OnEditChange)
	ON_BN_CLICKED(IDC_PUSHBUTTON, OnPushbuttonClicked)
	ON_BN_CLICKED(IDC_FILEBUTTON, OnPushbutton_file_Clicked)
	ON_BN_CLICKED(IDC_BROWSEBUTTON, OnPushbutton_browse_Clicked)
	ON_COMMAND(ID_FILE_PRINT, CView::OnFilePrint)
	ON_COMMAND(ID_FILE_PRINT_DIRECT, CView::OnFilePrint)
	ON_COMMAND(ID_FILE_PRINT_PREVIEW, CView::OnFilePrintPreview)
	ON_WM_CTLCOLOR()
END_MESSAGE_MAP()

// CHouCRC32View 构造/销毁

CHouCRC32View::CHouCRC32View()
{
	// TODO: 在此处添加构造代码

}

CHouCRC32View::~CHouCRC32View()
{
}

BOOL CHouCRC32View::PreCreateWindow(CREATESTRUCT& cs)
{
	// TODO: 在此处通过修改 CREATESTRUCT cs 来修改窗口类或
	// 样式

	return CView::PreCreateWindow(cs);
}

// CHouCRC32View 绘制

void CHouCRC32View::OnDraw(CDC* /*pDC*/)
{
	CHouCRC32Doc* pDoc = GetDocument();
	ASSERT_VALID(pDoc);

	// TODO: 在此处为本机数据添加绘制代码
}



// CHouCRC32View 打印

BOOL CHouCRC32View::OnPreparePrinting(CPrintInfo* pInfo)
{
	// 默认准备
	return DoPreparePrinting(pInfo);
}

void CHouCRC32View::OnBeginPrinting(CDC* /*pDC*/, CPrintInfo* /*pInfo*/)
{
	// TODO: 打印前添加额外的初始化
}

void CHouCRC32View::OnEndPrinting(CDC* /*pDC*/, CPrintInfo* /*pInfo*/)
{
	// TODO: 打印后添加清除过程
}


// CHouCRC32View 诊断

#ifdef _DEBUG
void CHouCRC32View::AssertValid() const
{
	CView::AssertValid();
}

void CHouCRC32View::Dump(CDumpContext& dc) const
{
	CView::Dump(dc);
}

CHouCRC32Doc* CHouCRC32View::GetDocument() const // 非调试版本是内联的
{
	ASSERT(m_pDocument->IsKindOf(RUNTIME_CLASS(CHouCRC32Doc)));
	return (CHouCRC32Doc*)m_pDocument;
}
#endif //_DEBUG


// CHouCRC32View 消息处理程序
int CHouCRC32View::OnCreate(LPCREATESTRUCT lpCreateStruct) 
{
	if (CView::OnCreate(lpCreateStruct) == -1)
		return -1;
	
	// TODO: Add your specialized creation code here
	//加入
	
	
	
	//结束
	CreateStaticText();
	CreateEditBoxes();
	CreatePushbutton();
  
	m_whiteBrush.CreateSolidBrush(RGB(255,255,255));

     m_hyperlink_mail.SetURL("mailto:[e-mail]");
	 m_hyperlink_mail.ModifyLinkStyle(0,CHyperLink::StyleUseHover);	

	return 0;
}

void CHouCRC32View::DoDataExchange(CDataExchange* pDX)
{
	CView::DoDataExchange(pDX);
	//加入
	
	
	DDX_Control(pDX, IDC_STATIC_MAIL, m_hyperlink_mail);
	
	
	//结束
}


void CHouCRC32View::CreateStaticText()
{
	m_static.Create("input string :",
		WS_CHILD | WS_VISIBLE| SS_CENTER,
		CRect(60, 100, 280, 120), this, 0);
	
	m_static_file.Create("browse file:",
		WS_CHILD | WS_VISIBLE| SS_CENTER,
		CRect(360, 100, 580, 120), this, 0);

	m_static_title.Create("Calculate the crc32,use divisor  0x04C11DB7 :",
		WS_CHILD | WS_VISIBLE| SS_CENTER,
		CRect(30, 40, 580, 80), this, 0);

    m_static_txt.Create("write e-mail to author :",
		WS_CHILD |/* WS_VISIBLE|*/ SS_CENTER,
		CRect(60, 330, 580, 350), this, 0);
	
	m_static_mail.Create("[e-mail]",
		WS_CHILD |/* WS_VISIBLE| */SS_CENTER,
		CRect(60, 350, 580, 380), this, IDC_STATIC_MAIL);

}

HBRUSH CHouCRC32View::OnCtlColor
    (CDC* pDC, CWnd* pWnd, UINT nCtrlColor)
{
	if ((nCtrlColor == CTLCOLOR_STATIC) /*&&
		  (pWnd->m_hWnd != m_edit1.m_hWnd)
		   &&
		  (pWnd->m_hWnd != m_edit3.m_hWnd*)*/
		  )
        return (HBRUSH)m_whiteBrush;

	return CView::OnCtlColor(pDC, pWnd, nCtrlColor);
}
void CHouCRC32View::CreateEditBoxes()
{
	m_edit2.Create(ES_AUTOHSCROLL | WS_CHILD | WS_VISIBLE
		| WS_BORDER, CRect(60, 120, 290, 140),
		this, IDC_EDIT);
	m_edit3.Create(ES_READONLY | WS_CHILD | WS_VISIBLE
		| WS_BORDER, CRect(60, 260, 290, 280),
		this, IDC_EDIT);

	m_edit1.Create(ES_READONLY | WS_CHILD  | WS_VISIBLE
		| WS_BORDER, CRect(60, 220, 290, 240), this, 0);

	m_edit4.Create(ES_AUTOHSCROLL | WS_CHILD | WS_VISIBLE
		| WS_BORDER, CRect(360, 120, 575, 140),
		this, IDC_EDIT);
	m_edit5.Create(ES_READONLY | WS_CHILD | WS_VISIBLE
		| WS_BORDER, CRect(360, 260, 595, 280),
		this, IDC_EDIT);

	m_edit6.Create(ES_READONLY | WS_CHILD  | WS_VISIBLE
		| WS_BORDER, CRect(360, 220, 595, 240), this, 0);
}
void CHouCRC32View::OnEditChange()
{
	//char str[81];
    //m_edit2.GetWindowText(str, 80);
	//m_edit1.SetWindowText(str);
}
void CHouCRC32View::CreatePushbutton()
{
	m_button.Create("calculate", BS_PUSHBUTTON |
		WS_BORDER | WS_CHILD | WS_VISIBLE,
		CRect(130, 165, 200, 190), this, IDC_PUSHBUTTON);

	m_filebutton.Create("calculate", BS_PUSHBUTTON |
		WS_BORDER | WS_CHILD | WS_VISIBLE,
		CRect(450, 165, 520, 190), this, IDC_FILEBUTTON);
   m_browsebutton.Create("...", BS_PUSHBUTTON |
		WS_BORDER | WS_CHILD | WS_VISIBLE,
		CRect(575, 120, 595, 140), this, IDC_BROWSEBUTTON);

	m_group1.Create("calculate  string",
		BS_GROUPBOX | WS_CHILD | WS_VISIBLE,
		CRect(55, 75, 300, 300), this, 0);

	m_group2.Create("calculate  file",
		BS_GROUPBOX | WS_CHILD | WS_VISIBLE,
		CRect(355, 75, 605, 300), this, 0);


}
void CHouCRC32View::OnPushbuttonClicked()
{
	
	char str[81];
	char ssss[255];
	int i=0;
	char * aaa="you have input:";
    static unsigned long crc_table[256] = {
	0x00000000, 0x04c11db7, 0x09823b6e, 0x0d4326d9, 0x130476dc, 0x17c56b6b,
	0x1a864db2, 0x1e475005, 0x2608edb8, 0x22c9f00f, 0x2f8ad6d6, 0x2b4bcb61,
	0x350c9b64, 0x31cd86d3, 0x3c8ea00a, 0x384fbdbd, 0x4c11db70, 0x48d0c6c7,
	0x4593e01e, 0x4152fda9, 0x5f15adac, 0x5bd4b01b, 0x569796c2, 0x52568b75,
	0x6a1936c8, 0x6ed82b7f, 0x639b0da6, 0x675a1011, 0x791d4014, 0x7ddc5da3,
	0x709f7b7a, 0x745e66cd, 0x9823b6e0, 0x9ce2ab57, 0x91a18d8e, 0x95609039,
	0x8b27c03c, 0x8fe6dd8b, 0x82a5fb52, 0x8664e6e5, 0xbe2b5b58, 0xbaea46ef,
	0xb7a96036, 0xb3687d81, 0xad2f2d84, 0xa9ee3033, 0xa4ad16ea, 0xa06c0b5d,
	0xd4326d90, 0xd0f37027, 0xddb056fe, 0xd9714b49, 0xc7361b4c, 0xc3f706fb,
	0xceb42022, 0xca753d95, 0xf23a8028, 0xf6fb9d9f, 0xfbb8bb46, 0xff79a6f1,
	0xe13ef6f4, 0xe5ffeb43, 0xe8bccd9a, 0xec7dd02d, 0x34867077, 0x30476dc0,
	0x3d044b19, 0x39c556ae, 0x278206ab, 0x23431b1c, 0x2e003dc5, 0x2ac12072,
	0x128e9dcf, 0x164f8078, 0x1b0ca6a1, 0x1fcdbb16, 0x018aeb13, 0x054bf6a4,
	0x0808d07d, 0x0cc9cdca, 0x7897ab07, 0x7c56b6b0, 0x71159069, 0x75d48dde,
	0x6b93dddb, 0x6f52c06c, 0x6211e6b5, 0x66d0fb02, 0x5e9f46bf, 0x5a5e5b08,
	0x571d7dd1, 0x53dc6066, 0x4d9b3063, 0x495a2dd4, 0x44190b0d, 0x40d816ba,
	0xaca5c697, 0xa864db20, 0xa527fdf9, 0xa1e6e04e, 0xbfa1b04b, 0xbb60adfc,
	0xb6238b25, 0xb2e29692, 0x8aad2b2f, 0x8e6c3698, 0x832f1041, 0x87ee0df6,
	0x99a95df3, 0x9d684044, 0x902b669d, 0x94ea7b2a, 0xe0b41de7, 0xe4750050,
	0xe9362689, 0xedf73b3e, 0xf3b06b3b, 0xf771768c, 0xfa325055, 0xfef34de2,
	0xc6bcf05f, 0xc27dede8, 0xcf3ecb31, 0xcbffd686, 0xd5b88683, 0xd1799b34,
	0xdc3abded, 0xd8fba05a, 0x690ce0ee, 0x6dcdfd59, 0x608edb80, 0x644fc637,
	0x7a089632, 0x7ec98b85, 0x738aad5c, 0x774bb0eb, 0x4f040d56, 0x4bc510e1,
	0x46863638, 0x42472b8f, 0x5c007b8a, 0x58c1663d, 0x558240e4, 0x51435d53,
	0x251d3b9e, 0x21dc2629, 0x2c9f00f0, 0x285e1d47, 0x36194d42, 0x32d850f5,
	0x3f9b762c, 0x3b5a6b9b, 0x0315d626, 0x07d4cb91, 0x0a97ed48, 0x0e56f0ff,
	0x1011a0fa, 0x14d0bd4d, 0x19939b94, 0x1d528623, 0xf12f560e, 0xf5ee4bb9,
	0xf8ad6d60, 0xfc6c70d7, 0xe22b20d2, 0xe6ea3d65, 0xeba91bbc, 0xef68060b,
	0xd727bbb6, 0xd3e6a601, 0xdea580d8, 0xda649d6f, 0xc423cd6a, 0xc0e2d0dd,
	0xcda1f604, 0xc960ebb3, 0xbd3e8d7e, 0xb9ff90c9, 0xb4bcb610, 0xb07daba7,
	0xae3afba2, 0xaafbe615, 0xa7b8c0cc, 0xa379dd7b, 0x9b3660c6, 0x9ff77d71,
	0x92b45ba8, 0x9675461f, 0x8832161a, 0x8cf30bad, 0x81b02d74, 0x857130c3,
	0x5d8a9099, 0x594b8d2e, 0x5408abf7, 0x50c9b640, 0x4e8ee645, 0x4a4ffbf2,
	0x470cdd2b, 0x43cdc09c, 0x7b827d21, 0x7f436096, 0x7200464f, 0x76c15bf8,
	0x68860bfd, 0x6c47164a, 0x61043093, 0x65c52d24, 0x119b4be9, 0x155a565e,
	0x18197087, 0x1cd86d30, 0x029f3d35, 0x065e2082, 0x0b1d065b, 0x0fdc1bec,
	0x3793a651, 0x3352bbe6, 0x3e119d3f, 0x3ad08088, 0x2497d08d, 0x2056cd3a,
	0x2d15ebe3, 0x29d4f654, 0xc5a92679, 0xc1683bce, 0xcc2b1d17, 0xc8ea00a0,
	0xd6ad50a5, 0xd26c4d12, 0xdf2f6bcb, 0xdbee767c, 0xe3a1cbc1, 0xe760d676,
	0xea23f0af, 0xeee2ed18, 0xf0a5bd1d, 0xf464a0aa, 0xf9278673, 0xfde69bc4,
	0x89b8fd09, 0x8d79e0be, 0x803ac667, 0x84fbdbd0, 0x9abc8bd5, 0x9e7d9662,
	0x933eb0bb, 0x97ffad0c, 0xafb010b1, 0xab710d06, 0xa6322bdf, 0xa2f33668,
	0xbcb4666d, 0xb8757bda, 0xb5365d03, 0xb1f740b4};
    
	register int j;
	unsigned long crc = 0xffffffff;
    unsigned long right;

	int len;
    char *data;

    m_edit2.GetWindowText(str, 80);
	
	if(strlen(str)==0){
MessageBox("input nothing");
return ;
}
	for(i=0;i<strlen(aaa);i++)
	ssss[i]=*(aaa+i);
    ssss[i]=0;
    for(i=0;i<strlen(str);i++)
	ssss[i+strlen(aaa)]=str[i];
    ssss[i+strlen(aaa)]=0;

	char buff[255];

    data=str;
	
	len=strlen(data);
	for (j=0; j<len; j++)
		crc = (crc << 8) ^ crc_table[((crc >> 24) ^ *data++) & 0xff];

	right= ~(crc^0xFFFFFFFF );

   sprintf(buff,"string crc32=0x%08X",right);

   m_edit3.SetWindowText(buff);
  sprintf(buff,"string size=%d chars.",len);
   m_edit1.SetWindowText(buff);
    //MessageBox(buff);

}
void CHouCRC32View::OnPushbutton_file_Clicked()
{   char str[81];
    unsigned long  len=0;
	char buff[255];
	FILE *fp;
    register unsigned long crc;
	unsigned long right;
    int  c;
    static unsigned long crc_table[256] = {
	0x00000000, 0x04c11db7, 0x09823b6e, 0x0d4326d9, 0x130476dc, 0x17c56b6b,
	0x1a864db2, 0x1e475005, 0x2608edb8, 0x22c9f00f, 0x2f8ad6d6, 0x2b4bcb61,
	0x350c9b64, 0x31cd86d3, 0x3c8ea00a, 0x384fbdbd, 0x4c11db70, 0x48d0c6c7,
	0x4593e01e, 0x4152fda9, 0x5f15adac, 0x5bd4b01b, 0x569796c2, 0x52568b75,
	0x6a1936c8, 0x6ed82b7f, 0x639b0da6, 0x675a1011, 0x791d4014, 0x7ddc5da3,
	0x709f7b7a, 0x745e66cd, 0x9823b6e0, 0x9ce2ab57, 0x91a18d8e, 0x95609039,
	0x8b27c03c, 0x8fe6dd8b, 0x82a5fb52, 0x8664e6e5, 0xbe2b5b58, 0xbaea46ef,
	0xb7a96036, 0xb3687d81, 0xad2f2d84, 0xa9ee3033, 0xa4ad16ea, 0xa06c0b5d,
	0xd4326d90, 0xd0f37027, 0xddb056fe, 0xd9714b49, 0xc7361b4c, 0xc3f706fb,
	0xceb42022, 0xca753d95, 0xf23a8028, 0xf6fb9d9f, 0xfbb8bb46, 0xff79a6f1,
	0xe13ef6f4, 0xe5ffeb43, 0xe8bccd9a, 0xec7dd02d, 0x34867077, 0x30476dc0,
	0x3d044b19, 0x39c556ae, 0x278206ab, 0x23431b1c, 0x2e003dc5, 0x2ac12072,
	0x128e9dcf, 0x164f8078, 0x1b0ca6a1, 0x1fcdbb16, 0x018aeb13, 0x054bf6a4,
	0x0808d07d, 0x0cc9cdca, 0x7897ab07, 0x7c56b6b0, 0x71159069, 0x75d48dde,
	0x6b93dddb, 0x6f52c06c, 0x6211e6b5, 0x66d0fb02, 0x5e9f46bf, 0x5a5e5b08,
	0x571d7dd1, 0x53dc6066, 0x4d9b3063, 0x495a2dd4, 0x44190b0d, 0x40d816ba,
	0xaca5c697, 0xa864db20, 0xa527fdf9, 0xa1e6e04e, 0xbfa1b04b, 0xbb60adfc,
	0xb6238b25, 0xb2e29692, 0x8aad2b2f, 0x8e6c3698, 0x832f1041, 0x87ee0df6,
	0x99a95df3, 0x9d684044, 0x902b669d, 0x94ea7b2a, 0xe0b41de7, 0xe4750050,
	0xe9362689, 0xedf73b3e, 0xf3b06b3b, 0xf771768c, 0xfa325055, 0xfef34de2,
	0xc6bcf05f, 0xc27dede8, 0xcf3ecb31, 0xcbffd686, 0xd5b88683, 0xd1799b34,
	0xdc3abded, 0xd8fba05a, 0x690ce0ee, 0x6dcdfd59, 0x608edb80, 0x644fc637,
	0x7a089632, 0x7ec98b85, 0x738aad5c, 0x774bb0eb, 0x4f040d56, 0x4bc510e1,
	0x46863638, 0x42472b8f, 0x5c007b8a, 0x58c1663d, 0x558240e4, 0x51435d53,
	0x251d3b9e, 0x21dc2629, 0x2c9f00f0, 0x285e1d47, 0x36194d42, 0x32d850f5,
	0x3f9b762c, 0x3b5a6b9b, 0x0315d626, 0x07d4cb91, 0x0a97ed48, 0x0e56f0ff,
	0x1011a0fa, 0x14d0bd4d, 0x19939b94, 0x1d528623, 0xf12f560e, 0xf5ee4bb9,
	0xf8ad6d60, 0xfc6c70d7, 0xe22b20d2, 0xe6ea3d65, 0xeba91bbc, 0xef68060b,
	0xd727bbb6, 0xd3e6a601, 0xdea580d8, 0xda649d6f, 0xc423cd6a, 0xc0e2d0dd,
	0xcda1f604, 0xc960ebb3, 0xbd3e8d7e, 0xb9ff90c9, 0xb4bcb610, 0xb07daba7,
	0xae3afba2, 0xaafbe615, 0xa7b8c0cc, 0xa379dd7b, 0x9b3660c6, 0x9ff77d71,
	0x92b45ba8, 0x9675461f, 0x8832161a, 0x8cf30bad, 0x81b02d74, 0x857130c3,
	0x5d8a9099, 0x594b8d2e, 0x5408abf7, 0x50c9b640, 0x4e8ee645, 0x4a4ffbf2,
	0x470cdd2b, 0x43cdc09c, 0x7b827d21, 0x7f436096, 0x7200464f, 0x76c15bf8,
	0x68860bfd, 0x6c47164a, 0x61043093, 0x65c52d24, 0x119b4be9, 0x155a565e,
	0x18197087, 0x1cd86d30, 0x029f3d35, 0x065e2082, 0x0b1d065b, 0x0fdc1bec,
	0x3793a651, 0x3352bbe6, 0x3e119d3f, 0x3ad08088, 0x2497d08d, 0x2056cd3a,
	0x2d15ebe3, 0x29d4f654, 0xc5a92679, 0xc1683bce, 0xcc2b1d17, 0xc8ea00a0,
	0xd6ad50a5, 0xd26c4d12, 0xdf2f6bcb, 0xdbee767c, 0xe3a1cbc1, 0xe760d676,
	0xea23f0af, 0xeee2ed18, 0xf0a5bd1d, 0xf464a0aa, 0xf9278673, 0xfde69bc4,
	0x89b8fd09, 0x8d79e0be, 0x803ac667, 0x84fbdbd0, 0x9abc8bd5, 0x9e7d9662,
	0x933eb0bb, 0x97ffad0c, 0xafb010b1, 0xab710d06, 0xa6322bdf, 0xa2f33668,
	0xbcb4666d, 0xb8757bda, 0xb5365d03, 0xb1f740b4};

	crc = 0xFFFFFFFF;
	  m_edit4.GetWindowText(str, 80);
	if(strlen(str)==0){
    MessageBox("not select file!");
      return ;
    }

	if ( (fp=fopen(m_openFilePath,"rb")) == NULL ) {
				sprintf(buff,"error opening file \"%s\"!\n",m_openFilePath);
               MessageBox(buff);
			   return;
			} else {
		while( (c=getc(fp)) != EOF ) {
		crc = (crc << 8) ^ crc_table[((crc >> 24) ^ c) & 0xff];
		len ++;
		}
			 right= ~(crc^0xFFFFFFFF );
				
			fclose( fp );
	}

	

  
  
   


    sprintf(buff,"file crc32=0x%08X",right);
	m_edit5.SetWindowText(buff);
    sprintf(buff,"file size=%u bytes",len);
	m_edit6.SetWindowText(buff);
	//MessageBox("aaaaaaaaa");
    
}
void CHouCRC32View::OnPushbutton_browse_Clicked()
{   
    
	char ssss[255];
	char filters[] =
		"DVB Section Files (*.sec)|*.ts|All Files (*.*)|*.*|";
	CFileDialog fileDlg(TRUE, NULL, "*.sec",
		NULL, filters, NULL); 

	int result = fileDlg.DoModal();

	if (result == IDOK)
	{
		m_openFileName = fileDlg.GetFileName();
		m_openFilePath = fileDlg.GetPathName();
		//sprintf(buff,"%s",str);
	    m_edit4.SetWindowText(m_openFileName);
		if(strlen(m_openFilePath)==0){
          MessageBox(m_openFilePath);
		}else{
			sprintf(ssss,"you chosed:%s",m_openFilePath);
			//MessageBox(ssss);
		}
		Invalidate();
	}
	
	

}