www.gusucode.com > 《C++高级语言程序设计》PPT及全书例子源代码-源码程序 > 《C++高级语言程序设计》PPT及全书例子源代码-源码程序/code/C++例题程序/第10章/s10_3/s10_3View.cpp

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// s10_3View.cpp : implementation of the CS10_3View class
//

#include "stdafx.h"
#include "s10_3.h"

#include "s10_3Doc.h"
#include "s10_3View.h"

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

/////////////////////////////////////////////////////////////////////////////
// CS10_3View

IMPLEMENT_DYNCREATE(CS10_3View, CView)

BEGIN_MESSAGE_MAP(CS10_3View, CView)
	//{{AFX_MSG_MAP(CS10_3View)
	ON_WM_LBUTTONDBLCLK()
	//}}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()

/////////////////////////////////////////////////////////////////////////////
// CS10_3View construction/destruction

CS10_3View::CS10_3View()
{
	// TODO: add construction code here
	// 初始化鼠标坐标，-1表示初始时还没双击鼠标，不显示文本
	m_xMousePosition = m_yMousePosition = -1;
}

CS10_3View::~CS10_3View()
{
}

BOOL CS10_3View::PreCreateWindow(CREATESTRUCT& cs)
{
	// TODO: Modify the Window class or styles here by modifying
	//  the CREATESTRUCT cs

	return CView::PreCreateWindow(cs);
}

/////////////////////////////////////////////////////////////////////////////
// CS10_3View drawing

void CS10_3View::OnDraw(CDC* pDC)
{
	CS10_3Doc* pDoc = GetDocument();
	ASSERT_VALID(pDoc);
	// TODO: add draw code for native data here
	if(m_xMousePosition != -1)
	{
		LOGFONT sLogFont;			// 定义字体结构
		sLogFont.lfCharSet			= ANSI_CHARSET;
		sLogFont.lfEscapement		= 0;
		sLogFont.lfHeight			= 60;
		sLogFont.lfItalic			= 0;
		sLogFont.lfOrientation		= 0;
		sLogFont.lfPitchAndFamily	= DEFAULT_PITCH;
		sLogFont.lfQuality			= DEFAULT_QUALITY;
		sLogFont.lfStrikeOut		= 0;
		sLogFont.lfUnderline		= 0;
		sLogFont.lfWeight			= FW_NORMAL;
		sLogFont.lfWidth			= 0;
		strcpy(sLogFont.lfFaceName,"times new roman");
		
		CClientDC oDC(this);					// oDC为当前客户区	
		CFont oFont;							// 定义字体
		CFont *pOldFont;						// 定义旧字体指针
		oFont.CreateFontIndirect(&sLogFont);	// 创建字体
		pOldFont = oDC.SelectObject(&oFont);	// 选择字体
		oDC.TextOut(m_xMousePosition, m_yMousePosition, "欢迎学习Visual C++ 6.0!");
		oDC.SelectObject(pOldFont);				// 还原旧字体
	}
}

/////////////////////////////////////////////////////////////////////////////
// CS10_3View printing

BOOL CS10_3View::OnPreparePrinting(CPrintInfo* pInfo)
{
	// default preparation
	return DoPreparePrinting(pInfo);
}

void CS10_3View::OnBeginPrinting(CDC* /*pDC*/, CPrintInfo* /*pInfo*/)
{
	// TODO: add extra initialization before printing
}

void CS10_3View::OnEndPrinting(CDC* /*pDC*/, CPrintInfo* /*pInfo*/)
{
	// TODO: add cleanup after printing
}

/////////////////////////////////////////////////////////////////////////////
// CS10_3View diagnostics

#ifdef _DEBUG
void CS10_3View::AssertValid() const
{
	CView::AssertValid();
}

void CS10_3View::Dump(CDumpContext& dc) const
{
	CView::Dump(dc);
}

CS10_3Doc* CS10_3View::GetDocument() // non-debug version is inline
{
	ASSERT(m_pDocument->IsKindOf(RUNTIME_CLASS(CS10_3Doc)));
	return (CS10_3Doc*)m_pDocument;
}
#endif //_DEBUG

/////////////////////////////////////////////////////////////////////////////
// CS10_3View message handlers

void CS10_3View::OnLButtonDblClk(UINT nFlags, CPoint point) 
{
	// TODO: Add your message handler code here and/or call default
	m_xMousePosition = point.x;
	m_yMousePosition = point.y;
	Invalidate();
	
	CView::OnLButtonDblClk(nFlags, point);
}