书籍源码

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Visual C++

ex55View.cpp：源码内容
							// ex55View.cpp : implementation of the CEx55View class
//
#include "stdafx.h"
#include "ex55.h"
#include "ex55Doc.h"
#include "ex55View.h"
#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif
/////////////////////////////////////////////////////////////////////////////
// CEx55View
IMPLEMENT_DYNCREATE(CEx55View, CView)
BEGIN_MESSAGE_MAP(CEx55View, CView)
	//{{AFX_MSG_MAP(CEx55View)
		// NOTE - the ClassWizard will add and remove mapping macros here.
		//    DO NOT EDIT what you see in these blocks of generated code!
	//}}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()
/////////////////////////////////////////////////////////////////////////////
// CEx55View construction/destruction
CEx55View::CEx55View()
{
	// TODO: add construction code here
}
CEx55View::~CEx55View()
{
}
BOOL CEx55View::PreCreateWindow(CREATESTRUCT& cs)
{
	// TODO: Modify the Window class or styles here by modifying
	//  the CREATESTRUCT cs
	return CView::PreCreateWindow(cs);
}
/////////////////////////////////////////////////////////////////////////////
// CEx55View drawing
void CEx55View::OnDraw(CDC* pDC)
{
	CEx55Doc* pDoc = GetDocument();
	ASSERT_VALID(pDoc);
	// TODO: add draw code for native data here
	int i;
	//绘制一组彩色点
    pDC->TextOut(20,20,"point");
	pDC->SetPixel(100,20,RGB(255,0,0));
	pDC->SetPixel(110,20,RGB(0,255,0));
	pDC->SetPixel(120,20,RGB(0,0,255));
	pDC->SetPixel(130,20,RGB(255,255,0));
	pDC->SetPixel(140,20,RGB(255,0,255));
	pDC->SetPixel(150,20,RGB(0,255,255));
	pDC->SetPixel(160,20,RGB(0,0,0));	
	//绘制一组彩色线
	//设置颜色表
	struct tagColor
	{
		int r,g,b;
	}color[7]={{255,0,0},{0,255,0},{0,0,255},{255,255,0},{255,0,255},{0,255,255},{0,0,0}};
	//定义两个指向画笔的指针
	CPen* pNewPen;
	CPen* pOldPen;
	for(i=0;i<7;i++)
	{
	pNewPen=new CPen;	//构造画笔并初始化
	if(pNewPen->CreatePen(PS_SOLID,2,RGB(color[i].r,color[i].g,color[i].b)))
	{
		//把新创建的画笔选入设备描述表，同时保存原来的画笔
		pOldPen=pDC->SelectObject(pNewPen);
		//用新画笔绘图
		pDC->MoveTo(20,60+i*10);
		pDC->LineTo(160,60+i*10);
		//恢复设备描述表中的原有画笔
		pDC->SelectObject(pOldPen);
	}
	else
	{
		AfxMessageBox("Create Pen Error!");
	}
	delete pNewPen;	//删除新画笔，以便再另外分配
	}
	//绘制圆弧
	for(i=0;i<8;i++)
	pDC->Arc(260-5*i,70-5*i,260+5*i,70+5*i,260+5*i,70,260+5*i,70);
	CBrush* pNewBrush;
	CBrush* pOldBrush;
	for(i=8;i>1;i--)
	{
	pNewBrush=new CBrush;
	if(pNewBrush->CreateSolidBrush(RGB(color[8-i].r,color[8-i].g,color[8-i].b)))
  	{
	pOldBrush=pDC->SelectObject(pNewBrush);
	pDC->Ellipse(260-10*i,200-5*i,260+10*i,200+5*i);
	pDC->SelectObject(pOldPen);
  	}
	delete pNewBrush;
	}
	//绘制矩形和圆角矩形
	pDC->Rectangle(190,270,250,310);
	pDC->RoundRect(260,270,330,310,30,20);
	
}
/////////////////////////////////////////////////////////////////////////////
// CEx55View printing
BOOL CEx55View::OnPreparePrinting(CPrintInfo* pInfo)
{
	// default preparation
	return DoPreparePrinting(pInfo);
}
void CEx55View::OnBeginPrinting(CDC* /*pDC*/, CPrintInfo* /*pInfo*/)
{
	// TODO: add extra initialization before printing
}
void CEx55View::OnEndPrinting(CDC* /*pDC*/, CPrintInfo* /*pInfo*/)
{
	// TODO: add cleanup after printing
}
/////////////////////////////////////////////////////////////////////////////
// CEx55View diagnostics
#ifdef _DEBUG
void CEx55View::AssertValid() const
{
	CView::AssertValid();
}
void CEx55View::Dump(CDumpContext& dc) const
{
	CView::Dump(dc);
}
CEx55Doc* CEx55View::GetDocument() // non-debug version is inline
{
	ASSERT(m_pDocument->IsKindOf(RUNTIME_CLASS(CEx55Doc)));
	return (CEx55Doc*)m_pDocument;
}
#endif //_DEBUG
/////////////////////////////////////////////////////////////////////////////
// CEx55View message handlers

						