drawshapesview.cpp

vc++程序设计与技巧中第8章“图形图像编程”部分的VC++原代码

// DrawShapesView.cpp : implementation of the CDrawShapesView class
//

#include "stdafx.h"
#include "DrawShapes.h"

#include "DrawShapesDoc.h"
#include "DrawShapesView.h"

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

/////////////////////////////////////////////////////////////////////////////
// CDrawShapesView

IMPLEMENT_DYNCREATE(CDrawShapesView, CView)

BEGIN_MESSAGE_MAP(CDrawShapesView, CView)
	//{{AFX_MSG_MAP(CDrawShapesView)
		// 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()

/////////////////////////////////////////////////////////////////////////////
// CDrawShapesView construction/destruction

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

}

CDrawShapesView::~CDrawShapesView()
{
}

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

	return CView::PreCreateWindow(cs);
}

/////////////////////////////////////////////////////////////////////////////
// CDrawShapesView drawing

void CDrawShapesView::OnDraw(CDC* pDC)
{
	CDrawShapesDoc* pDoc = GetDocument();
	ASSERT_VALID(pDoc);
	// TODO: add draw code for native data here
	//绘制三个彩色点
	pDC->TextOut(20,20,"点");
	pDC->SetPixel(100,40,RGB(250,0,0));
	pDC->SetPixel(120,40,RGB(0,250,0));
	pDC->SetPixel(140,40,RGB(0,0,250));

	//绘制直线
	pDC->TextOut(320,20,"线段");
	pDC->MoveTo(400,40);
	pDC->LineTo(500,40);

	//绘制折线
	pDC->TextOut(20,70,"折线");
	POINT polyline[4] = {{240,120},{80,60},{240,60},{80,120}};
	pDC->Polyline(polyline,4);

	//绘制矩形
	pDC->TextOut(320,70,"矩形");
	pDC->Rectangle(390,60,550,120);

	//绘制椭圆
	pDC->TextOut(20,160,"椭圆");
	pDC->Ellipse(80,140,280,240);

	//绘制圆
	pDC->TextOut(320,160,"圆");
	pDC->Ellipse(390,140,490,240);

	//绘制多边形
	pDC->TextOut(20,280,"多边形");
	POINT polygon[3] = {{80,270},{200,260},{160,300}};
	pDC->Polygon(polygon,3);

	//绘制文本
	pDC->TextOut(320,280,"文本");
	CFont NewFont;
	NewFont.CreateFont(25,0,0,0,250,FALSE,FALSE,0,
		DEFAULT_CHARSET,OUT_DEFAULT_PRECIS,
		CLIP_DEFAULT_PRECIS,DEFAULT_QUALITY,
		DEFAULT_PITCH&FF_SWISS,
		"Arial");

	CFont *pOldFont = (CFont *)pDC->SelectObject(&NewFont);
	pDC->TextOut(360,280,"VC程序设计技巧与实例");
	pDC->SelectObject(pOldFont);

}

/////////////////////////////////////////////////////////////////////////////
// CDrawShapesView printing

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

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

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

/////////////////////////////////////////////////////////////////////////////
// CDrawShapesView diagnostics

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

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

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

/////////////////////////////////////////////////////////////////////////////
// CDrawShapesView message handlers