decompressview.cpp

这是用提升小波变换与嵌入零树编码实现的256色灰度BMP图像压缩与解压缩的程序。

// DecompressView.cpp : implementation of the CDecompressView class
//

#include "stdafx.h"
#include "Decompress.h"

#include "DecompressDoc.h"
#include "DecompressView.h"

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

/////////////////////////////////////////////////////////////////////////////
// CDecompressView

IMPLEMENT_DYNCREATE(CDecompressView, CView)

BEGIN_MESSAGE_MAP(CDecompressView, CView)
	//{{AFX_MSG_MAP(CDecompressView)
	ON_WM_PAINT()
	//}}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()

/////////////////////////////////////////////////////////////////////////////
// CDecompressView construction/destruction

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

}

CDecompressView::~CDecompressView()
{
}

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

	return CView::PreCreateWindow(cs);
}

/////////////////////////////////////////////////////////////////////////////
// CDecompressView drawing

void CDecompressView::OnDraw(CDC* pDC)
{
	CDecompressDoc* pDoc = GetDocument();
	ASSERT_VALID(pDoc);
	// TODO: add draw code for native data here
}

/////////////////////////////////////////////////////////////////////////////
// CDecompressView printing

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

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

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

/////////////////////////////////////////////////////////////////////////////
// CDecompressView diagnostics

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

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

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

/////////////////////////////////////////////////////////////////////////////
// CDecompressView message handlers

void CDecompressView::OnPaint() 
{
	CPaintDC dc(this); // device context for painting
	
	// TODO: Add your message handler code here
	CDecompressDoc* pDoc=GetDocument();
	ASSERT_VALID(pDoc);

	//是否已打开某个BMP文件
	if(pDoc->flag==1)
	{
		if(pDoc->numQuad!=0)
		{

            SetDIBitsToDevice(dc.m_hDC, 0, 0, pDoc->pbi->bmiHeader.biWidth,
		    pDoc->pbi->bmiHeader.biHeight, 0, 0, 0,
		    pDoc->pbi->bmiHeader.biHeight, pDoc->lpshowbuf,
		    pDoc->pbi, DIB_RGB_COLORS);

		/*	ofstream fout;
			fout.open("C:\\temp.log");
			if(!fout)
			{
				return;
			}
			fout<<"biBitCount: "<<pDoc->pbi->bmiHeader.biBitCount<<endl;
			fout<<"biHeight"<<pDoc->pbi->bmiHeader.biHeight<<endl;
			fout<<"biWidth"<<pDoc->pbi->bmiHeader.biWidth<<endl;

			int lineWidth = ((pDoc->pbi->bmiHeader.biWidth+3)/4)*4;
			int temp = 1<<pDoc->pbi->bmiHeader.biBitCount;
			RGBQUAD* temppalette = new RGBQUAD[temp];
			for(int index=0;index<temp;index++)
			{
				temppalette[index] = pDoc->pbi->bmiColors[index];
			}
			for(int i=0;i<pDoc->pbi->bmiHeader.biHeight;i++)
			{
				for(int j=0;j<lineWidth;j++)
				{
					temp = (int)*(pDoc->lpshowbuf+i*lineWidth+j);
					fout<<"("<<(int)temppalette[temp].rgbRed<<","<<(int)temppalette[temp].rgbGreen<<","<<(int)temppalette[temp].rgbBlue<<") ";
				}
				fout<<endl;
			}
			fout.close();  */
		}    
		else
		{
			SetDIBitsToDevice(dc.m_hDC, 0, 0, pDoc->pbi->bmiHeader.biWidth,
		    pDoc->pbi->bmiHeader.biHeight, 0, 0, 0,
		    pDoc->pbi->bmiHeader.biHeight, pDoc->lpshowbuf,
		    pDoc->pbi, DIB_RGB_COLORS);
		 /*	ofstream fout;
			fout.open("C:\\temp.log");
			if(!fout)
			{
				return;
			}
			fout<<"biBitCount: "<<pDoc->pbi->bmiHeader.biBitCount<<endl;
			fout<<"biHeight"<<pDoc->pbi->bmiHeader.biHeight<<endl;
			fout<<"biWidth"<<pDoc->pbi->bmiHeader.biWidth<<endl;

			int lineWidth = ((pDoc->pbi->bmiHeader.biWidth+3)/4)*4;

			for(int i=0;i<pDoc->pbi->bmiHeader.biHeight;i++)
			{
				for(int j=0;j<lineWidth;j++)
				{
					fout<<"("<<(int)*(pDoc->lpshowbuf+(i*lineWidth+j)*3)<<","<<(int)*(pDoc->lpshowbuf+(i*lineWidth+j)*3+1)<<","<<(int)*(pDoc->lpshowbuf+(i*lineWidth+j)*3+2)<<") ";
				}
				fout<<endl;
			}

			fout.close();  */
		}
	}
		//for(int i=0;i<pDoc->pbi->bmiHeader.biHeight;i++)
			//for(int j=0;j<pDoc->pbi->bmiHeader.biWidth;j++)
		//{
		//	COLORREF color=RGB(pDoc->lpshowbuf[i+3*j],pDoc->lpshowbuf[i+3*j+1],pDoc->lpshowbuf[i+3*j+2]);
	       // dc.SetPixel(i,j,color);
		//}
	
	
		//DWORD lg=3*pDoc->pbi->bmiHeader.biSizeImage;
	    //for(DWORD i=0;i<lg;i++)
		//{
		   //CString str;
		   //str.Format("%d",pDoc->lpshowbuf[0]);
		   //TextOut(dc.m_hDC,600,0,str,3);
		//}


	
	
	
	// Do not call CView::OnPaint() for painting messages
}