codecwizarddlg.cpp

多种编解码的小程序

// CodecWizardDlg.cpp : implementation file
//

#include "stdafx.h"
#include "CodecWizard.h"
#include "CodecWizardDlg.h"

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

#ifdef CSLCS_TRACE_CODEC
	DiskFile TraceFile;
	char g_buf[512];
#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()

/////////////////////////////////////////////////////////////////////////////
// CCodecWizardDlg dialog

CCodecWizardDlg::CCodecWizardDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CCodecWizardDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CCodecWizardDlg)
		// 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);
	m_hAccel = NULL;
	m_bInitOK = FALSE;
	m_nMinWidth = 0;
	m_nMinHeight = 0;
}

void CCodecWizardDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CCodecWizardDlg)
		// NOTE: the ClassWizard will add DDX and DDV calls here
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CCodecWizardDlg, CDialog)
	//{{AFX_MSG_MAP(CCodecWizardDlg)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_BN_CLICKED(IDC_PASTE, OnPaste)
	ON_BN_CLICKED(IDC_COPY, OnCopy)
	ON_BN_CLICKED(IDC_DECODE, OnDecode)
	ON_WM_SIZE()
	ON_WM_SIZING()
	ON_COMMAND(IDC_ALLDONE, OnAlldone)
	ON_COMMAND(IDC_ALLUNDO, OnAllundo)
	ON_COMMAND(IDC_SHOW, OnShow)
	ON_MESSAGE(WM_HOTKEY,OnHotkey)
	ON_BN_CLICKED(IDC_FILE, OnFile)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CCodecWizardDlg message handlers

BOOL CCodecWizardDlg::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
	
	CListBox *pb = (CListBox *)GetDlgItem(IDC_METHODS);
	pb->AddString("hex <-> bin");
	pb->AddString("hex <-> C array");
	pb->AddString("URL <-> URI");
	pb->AddString("UTF7 <-> Binary(Base64 codec)");
	pb->AddString("Run-Length Encoding <-> original(RLE codec)");
	pb->AddString("RLE-hex <-> original(RLEHex codec)");
	pb->AddString("Trans8 <-> Original(T8 codec)");
	pb->AddString("Trans2s <-> Original(T2 codec)");
	pb->AddString("Trans1Cycle <-> Original(T1 codec)");
	pb->SetCurSel(4);
	m_bInitOK = TRUE;
	CRect rc;
	GetClientRect(rc);
	m_nMinWidth = rc.right - rc.left;
	m_nMinHeight = rc.bottom - rc.top;
	m_hotKey.Register(m_hWnd,MOD_WIN,'1',IDC_SHOW);
	m_Decode.Register(m_hWnd,MOD_WIN,'A',IDC_DECODE);
	m_Encode.Register(m_hWnd,MOD_WIN,'Q',IDOK);
	return TRUE;  // return TRUE  unless you set the focus to a control
}

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

void CCodecWizardDlg::OnCancel() 
{
	m_hotKey.Unregister();
	m_Encode.Unregister();
	m_Decode.Unregister();
	CDialog::OnCancel();
}

BOOL CCodecWizardDlg::PreTranslateMessage(MSG* pMsg) 
{
	if(m_hAccel && TranslateAccelerator(m_hWnd,m_hAccel,pMsg)) return TRUE;
	return CDialog::PreTranslateMessage(pMsg);
}

void CCodecWizardDlg::OnPaste() 
{
	CEdit *pe = (CEdit *)GetDlgItem(IDC_INPUT);
	pe->SetSel(0,pe->GetWindowTextLength());
	pe->ReplaceSel("",FALSE);
	pe->Paste();
}

void CCodecWizardDlg::OnCopy() 
{
	CEdit *pe = (CEdit *)GetDlgItem(IDC_OUTPUT);
	pe->SetSel(0,pe->GetWindowTextLength());
	pe->Copy();
}

MIMECodec* AllocCodec(int nCodec)
{
	switch(nCodec)
	{
	case CODEC_HEX:
		return new HexCodec;
	case CODEC_HEX2C:
		return new Hex2CCodec;
	case CODEC_URL:
		return new URLCodec;
	case CODEC_UTF7://BASE64
		return new UTF7Codec;
	case CODEC_RLE:
		return new RLECodec;
	case CODEC_RLEHEX:
		return new RLEHexCodec;
	case CODEC_TRANS8:
		return new Trans8Codec;
	case CODEC_TRANS2S:
		return new Trans2sCodec;
	case CODEC_TRANS1CYCLE:
		return new Trans1CycleCodec;
	default:
		return NULL;
	}
}

void CCodecWizardDlg::OnOK()
{
	CListBox *method = (CListBox *)GetDlgItem(IDC_METHODS);
	int nMethod = method->GetCurSel();
	Destructor<CCSAutoMem>mi(GetInput(nMethod,TRUE));
#ifdef CSLCS_TRACE_CODEC
		TraceFile.Open("Encode.txt",GENERIC_WRITE,CREATE_ALWAYS);
#endif
	Destructor<MIMECodec>c(*AllocCodec(nMethod));
	ByteArray byOut;
	if(mi->m_nSize>1024*10) byOut.SetGrowSize(8*1024);
#ifdef CSLCS_TRACE_CODEC
		TraceFile.Write("开始编码\n");
#endif
	int nLen = c->Encode(mi->m_pBuf,mi->m_nSize,byOut);
#ifdef CSLCS_TRACE_CODEC
		TraceFile.Write("编码结束\n");
		TraceFile.Close();
#endif
	SetOutput(byOut,nMethod,TRUE);
}

void CCodecWizardDlg::OnDecode() 
{
	CListBox *method = (CListBox *)GetDlgItem(IDC_METHODS);
	int nMethod = method->GetCurSel();
	Destructor<CCSAutoMem>mi(GetInput(nMethod,TRUE));
#ifdef CSLCS_TRACE_CODEC
		TraceFile.Open("Decode.txt",GENERIC_WRITE,CREATE_ALWAYS);
#endif
	CCSAutoMem mo(mi->m_nSize * 4 + 4);
	Destructor<MIMECodec>c(*AllocCodec(nMethod));
	ByteArray byOut;
	if(mi->m_nSize>1024*10) byOut.SetGrowSize(8*1024);
#ifdef CSLCS_TRACE_CODEC
		TraceFile.Write("开始解码\n");
#endif
	int nLen = c->Decode(mi->m_pBuf,mi->m_nSize,byOut);
#ifdef CSLCS_TRACE_CODEC
		TraceFile.Write("解码结束\n");
		TraceFile.Close();
#endif
	SetOutput(byOut,nMethod,FALSE);
}

void CCodecWizardDlg::OnSize(UINT nType, int cx, int cy) 
{
	CDialog::OnSize(nType, cx, cy);
	if(!m_bInitOK) return;
	CWnd *wnd = GetDlgItem(IDCANCEL);
	CRect rc;
	GetClientRect(rc);