expressview.cpp

视频捕捉图片并进行灰度处理24真彩图像转换成8为灰度图像

// ExpressView.cpp : implementation of the CExpressView class
//

#include "stdafx.h"
#include "Express.h"
#include "Video.h"
#include "ExpressDoc.h"
#include "ExpressView.h"
#include "MainFrm.h"
#include "ImgCenterDib.h"
#include "GrayTrans.h"
#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif

/////////////////////////////////////////////////////////////////////////////
// CExpressView

IMPLEMENT_DYNCREATE(CExpressView, CView)

BEGIN_MESSAGE_MAP(CExpressView, CView)
	//{{AFX_MSG_MAP(CExpressView)
	ON_COMMAND(ID_MENUITEM32771, OnMenuitem32771)
	ON_COMMAND(ID_MENUITEM32772, OnColorToGray)
	//}}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()

/////////////////////////////////////////////////////////////////////////////
// CExpressView construction/destruction

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

}

CExpressView::~CExpressView()
{
}

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

	return CView::PreCreateWindow(cs);
}

/////////////////////////////////////////////////////////////////////////////
// CExpressView drawing

void CExpressView::OnDraw(CDC* pDC)
{
	CExpressDoc* pDoc = GetDocument();
	//ASSERT_VALID(pDoc);
	// TODO: add draw code for native data here
	ImgCenterDib *PDib=pDoc->GetPDib();
	CSize sizeFileDib=PDib->GetDimensions();
	PDib->Draw(pDC,CPoint(0,0),sizeFileDib);
}

/////////////////////////////////////////////////////////////////////////////
// CExpressView printing

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

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

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

/////////////////////////////////////////////////////////////////////////////
// CExpressView diagnostics

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

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

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

/////////////////////////////////////////////////////////////////////////////
// CExpressView message handlers

void CExpressView::OnMenuitem32771() 
{
	// TODO: Add your command handler code here
	CVideo video;
	video.DoModal();
}

void CExpressView::OnColorToGray() 
{
	// TODO: Add your command handler code here
	CExpressDoc *pDoc=GetDocument();
	ImgCenterDib *pDib=pDoc->GetPDib();
	if (pDib->m_nBitCount!=24)
	{
		::MessageBox(0,"只处理彩色图像",MB_OK,0);
		return;
	}
	GrayTrans graytrans(pDib->GetDimensions(),pDib->m_nBitCount,
		pDib->m_lpColorTable,pDib->m_pImgData);
	graytrans.ColorToGray();
	CMainFrame *pFrame=(CMainFrame*)(AfxGetApp()->m_pMainWnd);
	pFrame->SendMessage(WM_COMMAND,ID_FILE_NEW);
	CExpressView *pView=(CExpressView*)pFrame->MDIGetActive()->GetActiveView();
	CExpressDoc *pDocNew=pView->GetDocument();
	ImgCenterDib *dibNew=pDocNew->GetPDib();
	dibNew->ReplaceDib(graytrans.GetDimensions(),graytrans.m_nBitCountOut,
		graytrans.m_lpColorTableOut,graytrans.m_pImgDataOut);
	pView->OnInitialUpdate();
	pDocNew->SetModifiedFlag(TRUE);
	pDocNew->UpdateAllViews(pView);
}