www.pudn.com > fscode.zip > Fsdlg.cpp, change:1997-06-17,size:14481b


// FSDlg.cpp : implementation file 
// 
 
#include "stdafx.h" 
#include "FS.h" 
#include "FSDlg.h" 
 
#ifdef _DEBUG 
#define new DEBUG_NEW 
#undef THIS_FILE 
static char THIS_FILE[] = __FILE__; 
#endif 
 
///////////////////////////////////////////////////////////////////////////// 
// CFSDlg dialog 
 
CFSDlg::CFSDlg(CWnd* pParent /*=NULL*/) 
	: CDialog(CFSDlg::IDD, pParent) 
{ 
	//{{AFX_DATA_INIT(CFSDlg) 
	m_Function = -1; 
	m_FileName = _T(""); 
	m_BlockSize = _T(""); 
	//}}AFX_DATA_INIT 
	// Note that LoadIcon does not require a subsequent DestroyIcon in Win32 
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME); 
} 
 
void CFSDlg::DoDataExchange(CDataExchange* pDX) 
{ 
	CDialog::DoDataExchange(pDX); 
	//{{AFX_DATA_MAP(CFSDlg) 
	DDX_Control(pDX, IDC_PROGRESS, m_Progress); 
	DDX_Radio(pDX, IDC_SPLIT_RADIO, m_Function); 
	DDX_Text(pDX, IDC_FILESELECT_EDIT, m_FileName); 
	DDX_Text(pDX, IDC_BLOCKSIZE_EDIT, m_BlockSize); 
	//}}AFX_DATA_MAP 
} 
 
BEGIN_MESSAGE_MAP(CFSDlg, CDialog) 
	//{{AFX_MSG_MAP(CFSDlg) 
	ON_WM_PAINT() 
	ON_WM_QUERYDRAGICON() 
	ON_BN_CLICKED(IDC_SPLIT_RADIO, OnSplitRadio) 
	ON_BN_CLICKED(IDC_MERGE_RADIO, OnMergeRadio) 
	ON_BN_CLICKED(IDC_SELECTFILE_BUTTON, OnSelectfileButton) 
	ON_BN_CLICKED(IDC_START_BUTTON, OnStartButton) 
	ON_EN_CHANGE(IDC_BLOCKSIZE_EDIT, OnChangeBlocksizeEdit) 
	ON_EN_CHANGE(IDC_FILESELECT_EDIT, OnChangeFileselectEdit) 
	//}}AFX_MSG_MAP 
END_MESSAGE_MAP() 
 
///////////////////////////////////////////////////////////////////////////// 
// CFSDlg message handlers 
 
BOOL CFSDlg::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 
	m_Function=0; 
	m_BlockSize='1'; 
	m_PreBlockSize='1'; 
	nBlockSize=1; 
	UpdateData(FALSE); 
	GotoDlgCtrl(GetDlgItem(IDC_FILESELECT_EDIT)); 
	return FALSE;  // 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 CFSDlg::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 CFSDlg::OnQueryDragIcon() 
{ 
	return (HCURSOR) m_hIcon; 
} 
 
void CFSDlg::OnSplitRadio()  
{ 
	// TODO: Add your control notification handler code here 
	if (m_Function==0) 
		return ; 
	UpdateData(TRUE); 
	GetDlgItem(IDC_BLOCKSIZE_EDIT)->EnableWindow(TRUE); 
	m_MergeFileName=m_FileName; 
	m_FileName=m_SplitFileName; 
	UpdateData(FALSE); 
} 
 
void CFSDlg::OnMergeRadio()  
{ 
	// TODO: Add your control notification handler code here 
	if (m_Function==1) 
		return ; 
	UpdateData(TRUE); 
	GetDlgItem(IDC_BLOCKSIZE_EDIT)->EnableWindow(FALSE); 
	m_SplitFileName=m_FileName; 
	m_FileName=m_MergeFileName; 
	UpdateData(FALSE); 
} 
 
void CFSDlg::OnSelectfileButton()  
{ 
	// TODO: Add your control notification handler code here 
	CString strOpenFileType; 
	if (m_Function==0) 
		strOpenFileType="All files (*.*)|*.*||"; 
	else 
		strOpenFileType="Information files (*.fsi)|*.fsi||"; 
	CFileDialog OpenFile(TRUE,NULL,NULL, 
		OFN_FILEMUSTEXIST|OFN_PATHMUSTEXIST|OFN_HIDEREADONLY, 
		strOpenFileType); 
	if (OpenFile.DoModal()==IDOK) 
	{ 
		m_FileName=OpenFile.GetPathName(); 
		UpdateData(FALSE); 
	} 
} 
 
void CFSDlg::OnStartButton()  
{ 
	//TODO: Add your control notification handler code here 
	//Get input information 
	if (m_Function==0)//Split file 
	{ 
		if (nBlockSize<=0) 
		{ 
			MessageBox("Block size must be larger than 0.", 
				"File Split", 
				MB_ICONINFORMATION|MB_OK); 
			return; 
		} 
 
		//Split option starts here 
		GetDlgItem(IDC_START_BUTTON)->EnableWindow(FALSE); 
		Split(); 
		 
		//After return 
		GetDlgItem(IDC_START_BUTTON)->EnableWindow(TRUE); 
		m_Progress.SetPos(0); 
	} 
	else//Merge files 
	{ 
		//Merge option starts here 
		GetDlgItem(IDC_START_BUTTON)->EnableWindow(FALSE); 
		Merge(); 
 
		//After return 
		GetDlgItem(IDC_START_BUTTON)->EnableWindow(TRUE); 
		m_Progress.SetPos(0); 
	} 
} 
 
int CFSDlg::GetStringLength(char * InputString) 
//This function get the length of the input string. 
//'\0' is included when count the length. 
{ 
	int length=1; 
	while (*InputString!='\0') 
	{ 
		length++; 
		InputString++; 
	} 
	return length; 
} 
 
void CFSDlg::Split() 
{ 
	CFile SourceFile,TargetFile; 
	CString m_NoPathFileName,m_FileTitle,m_FilePath; 
	CString TargetFileName,TargetFileExName; 
	char Buff[1024],NumberString[25]; 
	int CurrentBlock_KBytes,nBlockCounter; 
	int nFileTitleLength; 
	long int FileLength,CopiedLength; 
	UINT BuffLength,nReadLength; 
 
	//Open source file 
	if (SourceFile.Open(m_FileName, 
		CFile::modeRead|CFile::typeBinary) 
		==FALSE) 
	{ 
		MessageBox("Can't open source file.", 
			"File Split", 
			MB_ICONINFORMATION|MB_OK); 
		return; 
	} 
 
	//Get source file information 
	FileLength=(long int)SourceFile.GetLength(); 
	if ((FileLength/1024)<nBlockSize) 
	{ 
		MessageBox("You needn't split this file.", 
			"File Split", 
			MB_ICONINFORMATION|MB_OK); 
		SourceFile.Close(); 
		return; 
	} 
	m_NoPathFileName=SourceFile.GetFileName(); 
	nFileTitleLength=m_NoPathFileName.ReverseFind('.'); 
	if (nFileTitleLength!=-1) 
		m_FileTitle=m_NoPathFileName.Left(nFileTitleLength); 
	else 
		m_FileTitle=m_NoPathFileName; 
	m_FilePath=m_FileName.Left 
		(m_FileName.GetLength()-m_NoPathFileName.GetLength()); 
 
	//Create the first target file.It is also the first block. 
	TargetFileName=m_FilePath+m_FileTitle+".FSI"; 
	if (TargetFile.Open(TargetFileName, 
		CFile::modeCreate|CFile::modeReadWrite|CFile::typeBinary) 
		==FALSE) 
	{ 
		MessageBox("Can't create target file.", 
			"File Split", 
			MB_ICONINFORMATION|MB_OK); 
		SourceFile.Close(); 
		return; 
	} 
 
	//Write FSI file header 
	TargetFile.Write("FSI",3); 
	TargetFile.Write(m_NoPathFileName+"\0",m_NoPathFileName.GetLength()+1); 
	itoa(FileLength,NumberString,10); 
	TargetFile.Write(NumberString,GetStringLength(NumberString)); 
 
	//Write blocks 
	nBlockCounter=0; 
	CurrentBlock_KBytes=0; 
	CopiedLength=0; 
	FileLength/=1024; 
	BuffLength=1020-m_NoPathFileName.GetLength() 
		-GetStringLength(NumberString); 
	while ((nReadLength=SourceFile.Read(Buff,BuffLength))!=0) 
	{ 
		if (CurrentBlock_KBytes==nBlockSize) 
		{ 
			TargetFile.Close(); 
 
			//Generate next file name 
			nBlockCounter++; 
			if (nBlockCounter>999) 
			{ 
				MessageBox("Too many file blocks.", 
					"File Split", 
					MB_ICONINFORMATION|MB_OK); 
				return; 
			} 
			itoa(nBlockCounter,NumberString,10); 
			TargetFileExName=(CString)"00"+NumberString; 
			TargetFileExName=TargetFileExName.Right(3); 
			TargetFileName=m_FilePath+m_FileTitle+'.'+TargetFileExName; 
 
			//Create next block 
			if (TargetFile.Open(TargetFileName, 
				CFile::modeCreate|CFile::modeReadWrite|CFile::typeBinary) 
				==FALSE) 
			{ 
				MessageBox("Can't create block files.", 
					"File Split", 
					MB_ICONINFORMATION|MB_OK); 
				SourceFile.Close(); 
				return; 
			} 
			CurrentBlock_KBytes=0; 
		} 
		TargetFile.Write(Buff,nReadLength); 
		BuffLength=1024; 
		CurrentBlock_KBytes++; 
		CopiedLength++; 
		m_Progress.SetPos((int)(100*CopiedLength/FileLength)); 
	} 
 
	TargetFile.Close(); 
	return; 
} 
 
void CFSDlg::Merge() 
{ 
	CFile SourceFile,TargetFile; 
	CString m_NoPathFileName,m_FileTitle,m_FilePath; 
	CString DriveLetter,SourceFileName,SourceFileExName; 
	CString TargetFileName; 
	CFileStatus status; 
	char Buff[1024]; 
	char *BuffPointer; 
	char NumberString[5]; 
	int nFileTitleLength; 
	int nBlockCounter,StringLength; 
	int FileKBytes,CopiedKBytes; 
	int MessageBoxReturn; 
	long int FileLength,CopiedLength; 
	UINT BuffLength,nReadLength; 
 
	//Open FSI file 
	if (SourceFile.Open(m_FileName, 
		CFile::modeRead|CFile::typeBinary) 
		==FALSE) 
	{ 
		MessageBox("Can't open source file.", 
			"File Split", 
			MB_ICONINFORMATION|MB_OK); 
		return; 
	} 
	m_NoPathFileName=SourceFile.GetFileName(); 
	nFileTitleLength=m_NoPathFileName.ReverseFind('.'); 
	if (nFileTitleLength!=-1) 
		m_FileTitle=m_NoPathFileName.Left(nFileTitleLength); 
	else 
		m_FileTitle=m_NoPathFileName; 
	m_FilePath=m_FileName.Left 
		(m_FileName.GetLength()-m_NoPathFileName.GetLength()); 
 
	//Verify FSI file 
	SourceFile.Read(Buff,1024); 
	if((Buff[0]!='F')||(Buff[1]!='S')||(Buff[2]!='I')) 
	{ 
		MessageBox("Incorrect file format.", 
			"File Split", 
			MB_ICONINFORMATION|MB_OK); 
		return; 
	} 
 
	//Get file head information 
	BuffPointer=Buff; 
	for(int i=1;i<=3;i++) 
		BuffPointer++; 
	TargetFileName=m_FilePath+BuffPointer; 
	StringLength=GetStringLength(BuffPointer); 
	for(i=1;i<=StringLength;i++) 
		BuffPointer++; 
	FileLength=atoi(BuffPointer); 
	FileKBytes=FileLength/1024; 
	BuffLength=1021-StringLength; 
	StringLength=GetStringLength(BuffPointer); 
	for(i=1;i<=StringLength;i++) 
		BuffPointer++; 
	BuffLength-=StringLength; 
 
	//Create target file 
	DriveLetter=m_FileName; 
	DriveLetter=DriveLetter.Left(2); 
	DriveLetter.MakeUpper(); 
	if(CFile::GetStatus(TargetFileName,status)) 
	{ 
		if (status.m_attribute&0x01) 
		{ 
			MessageBoxReturn=MessageBox 
				((CString)"Over write read only file "+TargetFileName+'?', 
				"File Split", 
				MB_ICONQUESTION|MB_YESNOCANCEL); 
			if(MessageBoxReturn==IDYES) 
			{ 
				status.m_attribute=0x00; 
				CFile::SetStatus(TargetFileName,status); 
			} 
		} 
		else 
			MessageBoxReturn=MessageBox 
				((CString)"Over write "+TargetFileName+'?', 
				"File Split", 
				MB_ICONQUESTION|MB_YESNOCANCEL); 
		if(MessageBoxReturn==IDCANCEL) 
		{ 
			SourceFile.Close(); 
			return; 
		} 
	} 
	if((DriveLetter.Compare("A:")==0)||(MessageBoxReturn==IDNO)) 
	{ 
		CFileDialog SaveFile(FALSE,NULL,TargetFileName, 
			OFN_OVERWRITEPROMPT|OFN_HIDEREADONLY, 
			"All files (*.*)|*.*||"); 
		if (SaveFile.DoModal()==IDOK) 
		{ 
			TargetFileName=SaveFile.GetPathName(); 
			if (CFile::GetStatus(TargetFileName,status)) 
			{ 
				status.m_attribute=0x00; 
				CFile::SetStatus(TargetFileName,status); 
			} 
		} 
		else 
		{ 
			SourceFile.Close(); 
			return; 
		} 
	} 
	if (TargetFile.Open(TargetFileName, 
		CFile::modeCreate|CFile::modeReadWrite|CFile::typeBinary) 
		==FALSE) 
	{ 
		MessageBox("Can't create target file.", 
			"File Split", 
			MB_ICONINFORMATION|MB_OK); 
		SourceFile.Close(); 
		return; 
	} 
 
	//Restore target file 
	CopiedLength=0; 
	nBlockCounter=0; 
	CopiedKBytes=0; 
	while(TRUE) 
	{ 
		TargetFile.Write(BuffPointer,BuffLength); 
		BuffPointer=Buff; 
		CopiedLength+=BuffLength; 
		CopiedKBytes++; 
		m_Progress.SetPos((int)100*CopiedKBytes/FileKBytes); 
		if (FileLength<=CopiedLength) 
			break; 
 
		//Read from block 
		if ((nReadLength=SourceFile.Read(Buff,1024))==0) 
		{ 
			SourceFile.Close(); 
 
			//Generate next file name 
			nBlockCounter++; 
			itoa(nBlockCounter,NumberString,10); 
			SourceFileExName=(CString)"00"+NumberString; 
			SourceFileExName=SourceFileExName.Right(3); 
			SourceFileName=m_FilePath+m_FileTitle+'.'+SourceFileExName; 
 
			//Open next block 
			if (SourceFile.Open(SourceFileName, 
				CFile::modeRead|CFile::typeBinary) 
				==FALSE) 
			{ 
				if (DriveLetter.Compare("A:")==0) 
				{ 
					do 
					{ 
						if(MessageBox 
							("Insert next disk("+SourceFileName+").", 
							"File Split", 
							MB_ICONINFORMATION|MB_OKCANCEL) 
							==IDCANCEL) 
						{ 
							MessageBox("Can't open block files.", 
								"File Split", 
								MB_ICONINFORMATION|MB_OK); 
							TargetFile.Close();		  
							return; 
						} 
					} 
					while(SourceFile.Open(SourceFileName, 
						CFile::modeRead|CFile::typeBinary) 
						==FALSE); 
				} 
				else 
				{ 
					MessageBox("Can't open block files.", 
						"File Split", 
						MB_ICONINFORMATION|MB_OK); 
					TargetFile.Close(); 
					return; 
				} 
			} 
 
			//Read from new block 
			if ((nReadLength=SourceFile.Read(Buff,1024))==0) 
			{ 
				MessageBox("Can't read from block files.", 
					"File Split", 
					MB_ICONINFORMATION|MB_OK); 
				TargetFile.Close(); 
				return; 
			} 
		} 
		BuffLength=nReadLength; 
	} 
 
	//Verify target file 
	nReadLength=SourceFile.Read(Buff,1024); 
	SourceFile.Close(); 
	if (((TargetFile.GetLength())!=((UINT)FileLength)) 
		||(nReadLength!=0)) 
	{ 
		MessageBox("Unexpected error!", 
			"File Split", 
			MB_ICONINFORMATION|MB_OK); 
		TargetFile.Close(); 
		return; 
	} 
 
	TargetFile.Close(); 
	return; 
} 
 
void CFSDlg::OnChangeBlocksizeEdit()  
{ 
	// TODO: If this is a RICHEDIT control, the control will not 
	// send this notification unless you override the CDialog::OnInitDialog() 
	// function to send the EM_SETEVENTMASK message to the control 
	// with the ENM_CHANGE flag ORed into the lParam mask. 
	int nTempBlockSize=0; 
	UpdateData(TRUE); 
	if (m_BlockSize.GetLength()>6) 
	{ 
		m_BlockSize=m_PreBlockSize; 
		MessageBox("Blocksize too larger.", 
			"File Split", 
			MB_ICONINFORMATION|MB_OK); 
		UpdateData(FALSE); 
		return; 
	} 
	for(int i=0;i<m_BlockSize.GetLength();i++) 
	{ 
		if((m_BlockSize[i]<'0')||(m_BlockSize[i]>'9')) 
		{ 
			m_BlockSize=m_PreBlockSize; 
			MessageBox("You must input an integer as blocksize.", 
				"File Split", 
				MB_ICONINFORMATION|MB_OK); 
			UpdateData(FALSE); 
			return; 
		} 
		nTempBlockSize=nTempBlockSize*10+((int)m_BlockSize[i]-0x30); 
	} 
	m_PreBlockSize=m_BlockSize; 
	nBlockSize=nTempBlockSize; 
	// TODO: Add your control notification handler code here 
	 
} 
 
void CFSDlg::OnChangeFileselectEdit()  
{ 
	// TODO: If this is a RICHEDIT control, the control will not 
	// send this notification unless you override the CDialog::OnInitDialog() 
	// function to send the EM_SETEVENTMASK message to the control 
	// with the ENM_CHANGE flag ORed into the lParam mask. 
	UpdateData(TRUE); 
	// TODO: Add your control notification handler code here 
 
}