drawview.cpp

来自「Visual_C++.NET实用编程百例」· C++ 代码 · 共 119 行

// DrawView.cpp : CDrawView 类的实现
//

#include "stdafx.h"
#include "Draw.h"

#include "DrawDoc.h"
#include "DrawView.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#endif


// CDrawView

IMPLEMENT_DYNCREATE(CDrawView, CView)

BEGIN_MESSAGE_MAP(CDrawView, CView)
	// 标准打印命令
	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()

// CDrawView 构造/析构

CDrawView::CDrawView()
{
	// TODO: 在此处添加构造代码

}

CDrawView::~CDrawView()
{
}

BOOL CDrawView::PreCreateWindow(CREATESTRUCT& cs)
{
	// TODO: 在此处通过修改 CREATESTRUCT cs 来修改窗口类或
	// 样式

	return CView::PreCreateWindow(cs);
}

// CDrawView 绘制

void CDrawView::OnDraw(CDC* pDC)
{
	CDrawDoc* pDoc = GetDocument();
	ASSERT_VALID(pDoc);
	if (!pDoc)
		return;
	//画点
	pDC->SetPixel(50,50,RGB(255,0,0));
	//画线
	pDC->MoveTo(10,10);
	pDC->LineTo(10,100);
	//画折线，注意该折线不是封闭的
	CPoint p[5]={CPoint(50,70),CPoint(120,5),CPoint(180,50),CPoint(140,85),CPoint(50,130)};
	pDC->Polyline(p,5);
	//画普通矩形和圆角矩形
	pDC->Rectangle(200,20,280,70);
	pDC->RoundRect(200,80,280,130,15,10);
	//画多边形
	CPoint p1[5]={CPoint(300,70),CPoint(350,10),CPoint(400,50),CPoint(370,100),CPoint(290,130)};
	pDC->Polygon(p1,5);
	//画椭圆
	pDC->Ellipse(20,150,150,200);
	//绘制文本信息
	pDC->TextOut(200,180,"本例绘制简单的几何图形和文本。");
	

	// TODO: 在此处为本机数据添加绘制代码
}


// CDrawView 打印

BOOL CDrawView::OnPreparePrinting(CPrintInfo* pInfo)
{
	// 默认准备
	return DoPreparePrinting(pInfo);
}

void CDrawView::OnBeginPrinting(CDC* /*pDC*/, CPrintInfo* /*pInfo*/)
{
	// TODO: 打印前添加额外的初始化
}

void CDrawView::OnEndPrinting(CDC* /*pDC*/, CPrintInfo* /*pInfo*/)
{
	// TODO: 打印后添加清除过程
}


// CDrawView 诊断

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

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

CDrawDoc* CDrawView::GetDocument() const // 非调试版本是内联的
{
	ASSERT(m_pDocument->IsKindOf(RUNTIME_CLASS(CDrawDoc)));
	return (CDrawDoc*)m_pDocument;
}
#endif //_DEBUG


// CDrawView 消息处理程序