// BIG2GBDlg.cpp : implementation file
//

#include "stdafx.h"
#include "BIG2GB.h"
#include "BIG2GBDlg.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()

/////////////////////////////////////////////////////////////////////////////
// CBIG2GBDlg dialog

CBIG2GBDlg::CBIG2GBDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CBIG2GBDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CBIG2GBDlg)
	m_SourceFileName = _T("");
	m_DescFileName = _T("");
	m_Result = 1; //默認為簡體
	//}}AFX_DATA_INIT
	bBigToGB=TRUE;
	strLine.SetSize(0);
	m_lineNumber=CalLineNumber();
	m_text="\n";
	// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}

void CBIG2GBDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CBIG2GBDlg)
	DDX_Text(pDX, IDC_EDIT1, m_SourceFileName);
	DDX_Text(pDX, IDC_EDIT2, m_DescFileName);
	DDX_Radio(pDX, IDC_RADIO1, m_Result);
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CBIG2GBDlg, CDialog)
	//{{AFX_MSG_MAP(CBIG2GBDlg)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_BN_CLICKED(IDC_DIRBROWSER, OnDirbrowser)
	ON_BN_CLICKED(IDC_FILEBROWSER, OnFilebrowser)
	ON_BN_CLICKED(IDC_BUTTON1, OnButton1)
	ON_BN_CLICKED(IDC_RADIO1, OnRadio1)
	ON_BN_CLICKED(IDC_RADIO2, OnRadio2)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CBIG2GBDlg message handlers

BOOL CBIG2GBDlg::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
	
	return TRUE;  // return TRUE  unless you set the focus to a control
}

void CBIG2GBDlg::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 CBIG2GBDlg::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 CBIG2GBDlg::OnQueryDragIcon()
{
	return (HCURSOR) m_hIcon;
}

//源文件名
void CBIG2GBDlg::OnDirbrowser() 
{
CFileDialog fileDialog(TRUE,NULL,NULL,NULL,"文本文件(*.txt)|*.txt|所有文件(*.*)|*.*||");

	if (fileDialog.DoModal() == IDOK) {
		strOpenTXTName = fileDialog.GetPathName();
		m_SourceFileName = strOpenTXTName;
		UpdateData(FALSE);

        m_text=_T("");
	}		
}
//另存為目標文件名
void CBIG2GBDlg::OnFilebrowser() 
{
CFileDialog fileDialog( FALSE,"*.txt",NULL,NULL,"文本文件(*.txt)|*.txt|所有文件(*.*)|*.*||");
	if (fileDialog.DoModal() == IDOK) {
		strSaveTXTName=fileDialog.GetPathName();		
		m_DescFileName = strSaveTXTName;
		
		UpdateData(FALSE);
	}		
}

void CBIG2GBDlg::OnOK() 
{
   if (strSaveTXTName.IsEmpty() || strOpenTXTName.IsEmpty ())
	{
		AfxMessageBox("\n 抱歉,請選擇要轉換的文件名和轉換后另存為的文件名! ");
		return;
	}
   //讀文件
    TCHAR	buffer[0xff]="\0";
	CStdioFile	file(m_SourceFileName, CFile::modeRead|CFile::typeBinary);
	DWORD	count = 0;
	DWORD	Length = file.GetLength();
	do 
	{	memset(buffer,'\0',sizeof(buffer));
		count=file.Read(buffer, sizeof(buffer)-1);
		m_text += buffer;
	}
	while (count == sizeof(buffer)-1);

	m_text+="\n";
	DWORD tmp=m_text.GetLength();
	m_lineNumber=CalLineNumber();
	//簡繁體轉換
    if(m_Result==1)
       BigtoGB();   
    else
       GBtoBig() ;      
	//寫入文件
   	try {
			CStdioFile	file(m_DescFileName, CFile::modeCreate | CFile::modeWrite | CFile::typeBinary);
			m_text="";
			for(long i=0;i<m_lineNumber;i++)
			{
				m_text+=strLine[i];
				m_text+='\r';  //每一行后要加上一換行符，否則會出現亂碼現象
				m_text+='\n';
			}
			file.WriteHuge(m_text, m_text.GetLength());
			AfxMessageBox("文件轉換成功! ");
		} 
	catch (...)
		{
			return ;
		}

   
//	CDialog::OnOK();
}

CString CBIG2GBDlg::Range(long start, long end)
{
	return m_text.Mid(start,end-start);
}



CString CBIG2GBDlg::GetText()
{
	return m_text;
}

int CBIG2GBDlg::GetTextLength()
{
	return m_text.GetLength();
}

long CBIG2GBDlg::CalLineNumber()
{
	strLine.SetSize(0);
	CString strTemp;
	BOOL bReturn=FALSE;
	if(!GetTextLength())
		return 0;
	long line_num=0;
	int index=0;
	do
	{
		TCHAR c=m_text.GetAt(index++);
		if(c=='\t')
			strTemp+="        ";
		else if(c!='\n')
			strTemp+=c;
		else
		{	
			bReturn=TRUE;
			line_num++;;
			strLine.Add(strTemp.Left(strTemp.GetLength()-1));
			strTemp="\0";
		}
	}
	while(index<GetTextLength());
	if(!bReturn)
		strLine.Add(strTemp);

	return strLine.GetSize();
}

long CBIG2GBDlg::GetLineNumber()
{
	return m_lineNumber;
}

void CBIG2GBDlg::BigtoGB() 
{
	CalLineNumber();
	LPWORD pBIGTable=((CBIG2GB*)AfxGetApp())->GetBigTable();
	if(m_text=="\n")
		return;
	for(int Line=0;Line<GetLineNumber();Line++)
	{
		BYTE* SourceSTR;
		SourceSTR=(BYTE* )((LPCTSTR)strLine[Line]);
		int size=strLine[Line].GetLength();
		if(size)
		{	
			BYTE* DestSTR=new BYTE[size+1];
			unsigned i=0;
			do
			{
				// is English 是英文字符
				if(SourceSTR[i]<0xA1||(SourceSTR[i+1]<0x40)) 
				{
					DestSTR[i]=SourceSTR[i];
					i++;
				}
				else //是BIG5的漢字碼
				{
					DestSTR[i+1]=HIBYTE(pBIGTable[(SourceSTR[i]-0xA1)*0xBF+SourceSTR[i+1]-0x40]);
					DestSTR[i]=LOBYTE(pBIGTable[(SourceSTR[i]-0xA1)*0xBF+SourceSTR[i+1]-0x40]);
					i+=2;
				}
			}
			while(i<strlen((char*)(SourceSTR)));
            DestSTR[i]='\0';

			strLine[Line]=DestSTR;
			delete DestSTR;
		}
	}
}

void CBIG2GBDlg::GBtoBig() 
{
	CalLineNumber();
	LPWORD pGBTable=((CBIG2GB*)AfxGetApp())->GetGBTable();
	if(m_text=="\n")
		return;
	for(int Line=0;Line<GetLineNumber();Line++)
	{
		BYTE* SourceSTR;
		SourceSTR=(BYTE* )((LPCTSTR)strLine[Line]);
		int size=strLine[Line].GetLength();
		if(size)
		{	
			BYTE* DestSTR=new BYTE[size+1];
			unsigned i=0;
			do
			{
				// is English 是英文字符
				if(SourceSTR[i]<0xA1||(SourceSTR[i+1]<0xA1)) 
				{
					DestSTR[i]=SourceSTR[i];
					i++;
				}
				else if(SourceSTR[i]>0xA1&&SourceSTR[i]<0xB0) //是GB2312的漢字碼
				{
					DestSTR[i+1]=HIBYTE(pGBTable[(SourceSTR[i]-0xA1)*0x5E+SourceSTR[i+1]-0xA1]);
					DestSTR[i]=LOBYTE(pGBTable[(SourceSTR[i]-0xA1)*0x5E+SourceSTR[i+1]-0xA1]);
					i+=2;
				}
				else
				{
					DestSTR[i+1]=HIBYTE(pGBTable[(SourceSTR[i]-0xA7)*0x5E+SourceSTR[i+1]-0xA1]);
					DestSTR[i]=LOBYTE(pGBTable[(SourceSTR[i]-0xA7)*0x5E+SourceSTR[i+1]-0xA1]);
					i+=2;
				}
			}
			while(i<strlen((char*)(SourceSTR)));
	        DestSTR[i]='\0';

			strLine[Line]=DestSTR;
			delete DestSTR;
		}
	}

}

void CBIG2GBDlg::OnButton1() 
{
	 if (m_DescFileName.IsEmpty())
	{
		AfxMessageBox("\n 抱歉,沒有發現轉換后的文件名! ");
		return;
	}
HINSTANCE result =ShellExecute(NULL, _T("open"), m_DescFileName, NULL,NULL, SW_SHOW);	
}

void CBIG2GBDlg::OnRadio1() 
{
  m_Result=0;
	
}

void CBIG2GBDlg::OnRadio2() 
{
  m_Result=1;	
}