www.gusucode.com > VC++ 对话框中使用打印预览的功能演示-源码程序 > VC++ 对话框中使用打印预览的功能演示-源码程序/code/MainFrm.cpp

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// MainFrm.cpp : implementation of the CMainFrame class
//

#include "stdafx.h"
#include "MainFrm.h"

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

/////////////////////////////////////////////////////////////////////////////
// CMainFrame

IMPLEMENT_DYNAMIC(CMainFrame, CFrameWnd)

BEGIN_MESSAGE_MAP(CMainFrame, CFrameWnd)
	//{{AFX_MSG_MAP(CMainFrame)
	ON_WM_CREATE()	
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

static UINT indicators[] =
{
	ID_SEPARATOR,           // status line indicator
	ID_INDICATOR_CAPS,
	ID_INDICATOR_NUM,
	ID_INDICATOR_SCRL,
};

/////////////////////////////////////////////////////////////////////////////
// CMainFrame construction/destruction

CMainFrame::CMainFrame(DRAWFUN pDraw,CWnd*pOldW,CWnd* pCallW,BOOL bDirect,LPCTSTR stTitle)
{
	//传递一个绘制函数.
	// TODO: add member initialization code here	
	Draw=pDraw;
	pOldWnd=pOldW;
	pCallWnd=pCallW;
	bDirectPrint=bDirect;
	CString ss;
	if(stTitle!=NULL)
		ss=_T(stTitle);
	else
	{		
		pOldW->GetWindowText(ss);
		if(!ss.IsEmpty())
			ss=ss+_T(" (预览)");
		else
			ss=ss+_T("打印预览");
	}
	if(!Create(NULL,ss,WS_OVERLAPPEDWINDOW | FWS_ADDTOTITLE,CRect(200,200,500,500)))
		TRACE0("Failed to create view window\n");
 
	
}


CMainFrame::~CMainFrame()
{
	pOldWnd->ShowWindow(SW_SHOW);
	
}

int CMainFrame::OnCreate(LPCREATESTRUCT lpCreateStruct)
{
	if (CFrameWnd::OnCreate(lpCreateStruct) == -1)
		return -1;	
	CCreateContext context;
	context.m_pNewViewClass = RUNTIME_CLASS(CWrapperView);
	context.m_pCurrentFrame = this;
	context.m_pCurrentDoc = NULL;
	context.m_pLastView = NULL;

	m_pView = STATIC_DOWNCAST(CWrapperView, CreateView(&context)); //CreateView(&context);
	if(m_pView != NULL)
	{
		if(!bDirectPrint)
			m_pView->ShowWindow(SW_SHOW);
		SetActiveView(m_pView);
	}	
	SetIcon(pOldWnd->GetIcon(FALSE),FALSE);
	SetIcon(pOldWnd->GetIcon(TRUE),TRUE);
	ShowWindow(SW_MAXIMIZE);	
	CWinApp *pApp=AfxGetApp();		
	pApp->m_pMainWnd=this;
	if(bDirectPrint)
	{
		m_pView->SendMessage(WM_COMMAND, ID_FILE_PRINT);		
	}
	else
	{
		m_pView->OnFilePrintPreview(this);	
		pOldWnd->ShowWindow(SW_HIDE);
	}
	return 0;
}

BOOL CMainFrame::PreCreateWindow(CREATESTRUCT& cs)
{
	if( !CFrameWnd::PreCreateWindow(cs) )
		return FALSE;
	// TODO: Modify the Window class or styles here by modifying
	//  the CREATESTRUCT cs

	cs.dwExStyle &= ~WS_EX_CLIENTEDGE;
	cs.lpszClass = AfxRegisterWndClass(0);
	return TRUE;
}

/////////////////////////////////////////////////////////////////////////////
// CMainFrame diagnostics

#ifdef _DEBUG
void CMainFrame::AssertValid() const
{
	CFrameWnd::AssertValid();
}

void CMainFrame::Dump(CDumpContext& dc) const
{
	CFrameWnd::Dump(dc);
}

#endif //_DEBUG

/////////////////////////////////////////////////////////////////////////////
// CMainFrame message handlers

BOOL CMainFrame::OnCmdMsg(UINT nID, int nCode, void* pExtra, AFX_CMDHANDLERINFO* pHandlerInfo)
{
	// let the view have first crack at the command
	if (m_pView->OnCmdMsg(nID, nCode, pExtra, pHandlerInfo))
		return TRUE;

	// otherwise, do default handling
	return CFrameWnd::OnCmdMsg(nID, nCode, pExtra, pHandlerInfo);
}