图像水印view.cpp

关于图像水印,VC++语言运行程序,可以正常正常运行.希望有所帮助.

// 图像水印View.cpp : implementation of the CMyView class
//

#include "stdafx.h"
#include "图像水印.h"

#include "图像水印Doc.h"
#include "图像水印View.h"

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

/////////////////////////////////////////////////////////////////////////////
// CMyView

IMPLEMENT_DYNCREATE(CMyView, CView)

BEGIN_MESSAGE_MAP(CMyView, CView)
	//{{AFX_MSG_MAP(CMyView)
	ON_COMMAND(ID_FILE_OPEN, OnFileOpen)
	ON_COMMAND(ID_EMBED, OnEmbed)
	ON_UPDATE_COMMAND_UI(ID_EMBED, OnUpdateEmbed)
	ON_COMMAND(ID_PICK, OnPick)
	ON_UPDATE_COMMAND_UI(ID_PICK, OnUpdatePick)
	ON_COMMAND(ID_NORMAL, OnNormal)
	ON_COMMAND(ID_STRETCH, OnStretch)
	//}}AFX_MSG_MAP
	// Standard printing commands
	ON_COMMAND(ID_FILE_PRINT, CView::OnFilePrint)
	ON_COMMAND(ID_FILE_PRINT_DIRECT, CView::OnFilePrint)
	ON_COMMAND(ID_FILE_PRINT_PREVIEW, CView::OnFilePrintPreview)
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CMyView construction/destruction

CMyView::CMyView()
{
	// TODO: add construction code here

}

CMyView::~CMyView()
{
}

BOOL CMyView::PreCreateWindow(CREATESTRUCT& cs)
{
	// TODO: Modify the Window class or styles here by modifying
	//  the CREATESTRUCT cs

	return CView::PreCreateWindow(cs);
}

/////////////////////////////////////////////////////////////////////////////
// CMyView drawing

void CMyView::OnDraw(CDC* pDC)
{
	CMyDoc* pDoc = GetDocument();
	ASSERT_VALID(pDoc);
	// TODO: add draw code for native data here
	RECT Rect;
	GetClientRect(&Rect);
	if(!show_contrast)
		m_Dib.Draw(pDC,0,0,Rect.right ,Rect.bottom ,ImageStyle);
	else
	{
		m_Dib.DrawContrast (pDC,Rect.right ,Rect.bottom );
	//	pDC->SetBkColor ((0,0,0));
	//	pDC->SetTextColor ((255,255,255));
	//	pDC->TextOut (0,Rect.bottom -30,"左图为原始图，右图为嵌入了隐藏信息的图片");
	}

}

/////////////////////////////////////////////////////////////////////////////
// CMyView printing

BOOL CMyView::OnPreparePrinting(CPrintInfo* pInfo)
{
	// default preparation
	return DoPreparePrinting(pInfo);
}

void CMyView::OnBeginPrinting(CDC* /*pDC*/, CPrintInfo* /*pInfo*/)
{
	// TODO: add extra initialization before printing
}

void CMyView::OnEndPrinting(CDC* /*pDC*/, CPrintInfo* /*pInfo*/)
{
	// TODO: add cleanup after printing
}

/////////////////////////////////////////////////////////////////////////////
// CMyView diagnostics

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

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

CMyDoc* CMyView::GetDocument() // non-debug version is inline
{
	ASSERT(m_pDocument->IsKindOf(RUNTIME_CLASS(CMyDoc)));
	return (CMyDoc*)m_pDocument;
}
#endif //_DEBUG

/////////////////////////////////////////////////////////////////////////////
// CMyView message handlers

void CMyView::OnFileOpen() 
{
	// TODO: Add your command handler code here
	 show_contrast = false;   //非对比显示
	// TODO: Add your command handler code here
	static char szFilter[] = "BMP Files(*.BMP)|*.BMP||";

	CFileDialog FileDlg( TRUE, NULL, NULL,
		OFN_HIDEREADONLY, szFilter );

	if( FileDlg.DoModal() == IDOK &&
		m_Dib.Load( FileDlg.GetPathName() ) )
	{
		InvalidateRect( NULL, TRUE );
		UpdateWindow();
		have_open_a_file=true;
		if (m_Dib.tag == 0)//该图无隐藏信息
		{
			embed = true;
			pick = false;  //菜单亮暗控制
		}//
		else
		{
			embed = false;
			pick = true;  //菜单亮暗控制
		}//
	}

	
	
}

void CMyView::OnEmbed() 
{
	// TODO: Add your command handler code here
	//弹出打开对话框，用户选择嵌入的文件

	static char szFilter[] = "All Files(*.*)|*.*||";

	CFileDialog FileDlg( TRUE, NULL, NULL,
		OFN_HIDEREADONLY, szFilter );

	if( FileDlg.DoModal() == IDOK &&
		m_Dib.LoadEmbFile( FileDlg.GetPathName() ) )
	{ 
		if (m_Dib.bitmap_size / m_Dib.embfile_size < 8)
		{
			AfxMessageBox("文件太大，无法嵌入！");
		}
		else
		{
			show_contrast = true;
			m_Dib.BackUpDib(); //图片原始数据备份供对比显示
			m_Dib.Embed();   //嵌入
			
			Invalidate(true);//刷屏，显示加入隐藏信息后的图像
			
			static char szFilter[] = "BMP Files(*.BMP)|*.BMP||";
			CFileDialog FileDlg( FALSE, "bmp", NULL,                //保存
				OFN_HIDEREADONLY|OFN_OVERWRITEPROMPT, szFilter );
			
			if( FileDlg.DoModal() == IDOK )
			{
				m_Dib.Save( FileDlg.GetPathName() );
			}
			embed = false;
		}
		
	}
	

	
}

void CMyView::OnUpdateEmbed(CCmdUI* pCmdUI) 
{
	// TODO: Add your command update UI handler code here
		pCmdUI->Enable(embed);

	
}

void CMyView::OnPick() 
{
	// TODO: Add your command handler code here
	//提取完毕，弹出保存对话框，用户进行保存
	static char szFilter[] = "BMP Files(*.BMP)|*.BMP|All Files(*.*)|*.*||";
	CFileDialog FileDlg( FALSE, " ", NULL,                //保存
		OFN_HIDEREADONLY|OFN_OVERWRITEPROMPT, szFilter );
				
	if (FileDlg.DoModal() == IDOK)
	{	
		m_Dib.Pick();
		m_Dib.SavePicked(FileDlg.GetPathName());
		pick = false;
	}

	
}

void CMyView::OnUpdatePick(CCmdUI* pCmdUI) 
{
	// TODO: Add your command update UI handler code here
	pCmdUI->Enable(pick);
	
}

void CMyView::OnNormal() 
{
	// TODO: Add your command handler code here
	ImageStyle = 0;

	CMenu *pMnu = AfxGetMainWnd()->GetMenu( );
	pMnu->CheckMenuItem(ID_STRETCH,MF_UNCHECKED);
	pMnu->CheckMenuItem(ID_NORMAL,MF_CHECKED);
	
	InvalidateRect( NULL, TRUE );
	UpdateWindow();

	
}

void CMyView::OnStretch() 
{
	// TODO: Add your command handler code here
	 ImageStyle = 1;
	
	CMenu *pMnu = AfxGetMainWnd()->GetMenu( );
	pMnu->CheckMenuItem(ID_STRETCH,MF_CHECKED);
	pMnu->CheckMenuItem(ID_NORMAL,MF_UNCHECKED);
	
	InvalidateRect( NULL, TRUE );
	UpdateWindow();

	
}