watermarkdlg.cpp

一个实用的水印加密解密程序

// WaterMarkDlg.cpp : implementation file
//

#include "stdafx.h"
#include "WaterMark.h"
#include "WaterMarkDlg.h"
#include "Dib.h"
#include "Embed.h"
#include "Extracted.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()

/////////////////////////////////////////////////////////////////////////////
// CWaterMarkDlg dialog

CWaterMarkDlg::CWaterMarkDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CWaterMarkDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CWaterMarkDlg)
		// 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);
	show[0]=show[1]=show[2]=FALSE;
	hwnd[0]=hwnd[1]=hwnd[3]=NULL;
	hSrcDC[0]=hSrcDC[1]=hSrcDC[2]=hDesDC[0]=hDesDC[1]=hDesDC[2]=NULL;
	m_dib = new CDib();
	m_edit=NULL;
	pStatic=pStatic1=NULL;
	Mark=FALSE;
//	m_tOriPixelArray=NULL;
	ImageHeight=m_Ih=ImageWidth=0;
	number=0;
}

void CWaterMarkDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CWaterMarkDlg)
	DDX_Control(pDX, IDC_STATIC0, m_pic);
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CWaterMarkDlg, CDialog)
	//{{AFX_MSG_MAP(CWaterMarkDlg)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_WM_TIMER()
	ON_BN_CLICKED(IDC_BUTTON1, OnOpenImage)
	ON_BN_CLICKED(IDC_BUTTON2, OnExtracted)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CWaterMarkDlg message handlers

BOOL CWaterMarkDlg::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
	m_edit=new CEdit;
	r.left=100;
	r.top=10;
	r.right=r.left+300;
	r.bottom=r.top+30;
	m_edit->Create(ES_CENTER|WS_VISIBLE|ES_READONLY,r,this,1);
	CFont *m_font=new CFont;
	m_font->CreateFont(24,0,0,0,FW_SEMIBOLD,FALSE,FALSE,0,ANSI_CHARSET,OUT_DEFAULT_PRECIS,CLIP_DEFAULT_PRECIS,DEFAULT_QUALITY,DEFAULT_PITCH&FF_SWISS,"Arial");
	m_edit->SetFont(m_font,TRUE);
	m_edit->SetWindowText("图像数字水印技术模拟平台");
   BackImage();
	return TRUE;  // return TRUE  unless you set the focus to a control
}

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

void CWaterMarkDlg::BackImage() 
{
	// TODO: Add your control notification handler code here

	filename="E:\\WaterMark\\backimage.bmp";
	Bitmap2Data();
	if(hwnd[0]!=NULL)
		hwnd[0]=NULL;
	if(hSrcDC[0]!=NULL)
		hSrcDC[0]=NULL;
	if(hDesDC[0]!=NULL)
		hDesDC[0]=NULL;

	hwnd[0] = GetDlgItem(IDC_STATIC0);
	hDesDC[0] = hwnd[0]->GetDC()->m_hDC;
	hSrcDC[0] = CreateCompatibleDC(hDesDC[0]);			
		
	hBitmap[0]=(HBITMAP)LoadImage(AfxGetInstanceHandle(),filename,IMAGE_BITMAP,0,0,LR_LOADFROMFILE|LR_CREATEDIBSECTION);
	GetObject(hBitmap[0], sizeof BITMAP, &bm[0]);		
	SelectObject(hSrcDC[0], hBitmap[0]);
	hwnd[0]->GetClientRect(&rect[0]);
		
	::SetStretchBltMode(hDesDC[0],COLORONCOLOR);       
	::StretchBlt(hDesDC[0], rect[0].left, rect[0].top, rect[0].right, rect[0].bottom, hSrcDC[0], 0, 0, bm[0].bmWidth, bm[0].bmHeight,+SRCCOPY);
	show[0]=TRUE;
	SetTimer(NULL,50,0);
				
}

void CWaterMarkDlg::Bitmap2Data()
{
	m_dib->Open(filename);
	ImageWidth = m_dib->GetWidth();
	ImageHeight = m_dib->GetHeight();
	biBitCount = m_dib->GetBiBitCount(); 
	BYTE  *colorTable;
	colorTable =(BYTE *) m_dib->m_pDibBits;
	
}

void CWaterMarkDlg::OnTimer(UINT nIDEvent) 
{
	// TODO: Add your message handler code here and/or call default
		if (show[0])
		{
			::StretchBlt(hDesDC[0], rect[0].left, rect[0].top, rect[0].right, \
				rect[0].bottom, hSrcDC[0], 0, 0, bm[0].bmWidth, bm[0].bmHeight,+SRCCOPY);
		}

		CDialog::OnTimer(nIDEvent);
}



void CWaterMarkDlg::OnOpenImage() 
{
	// TODO: Add your control notification handler code here
	CEmbed m_embed;
	m_embed.DoModal();

}

void CWaterMarkDlg::OnExtracted() 
{
	// TODO: Add your control notification handler code here
	CExtracted m_extracted;
	m_extracted.DoModal();
}