chapter13aview.cpp

精通MFC程序 设计

// Chapter13AView.cpp : implementation of the CChapter13AView class
//

#include "stdafx.h"
#include "Chapter13A.h"

#include "Chapter13ADoc.h"
#include "Chapter13AView.h"

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

/////////////////////////////////////////////////////////////////////////////
// CChapter13AView

IMPLEMENT_DYNCREATE(CChapter13AView, CView)

BEGIN_MESSAGE_MAP(CChapter13AView, CView)
	//{{AFX_MSG_MAP(CChapter13AView)
	ON_WM_TIMER()
	//}}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()

/////////////////////////////////////////////////////////////////////////////
// CChapter13AView construction/destruction

CChapter13AView::CChapter13AView()
{
	// TODO: add construction code here
	m_iRed=255;
	m_iGreen=0;
	m_iBlue= 128;
	x=y=0;
}

CChapter13AView::~CChapter13AView()
{
}

BOOL CChapter13AView::PreCreateWindow(CREATESTRUCT& cs)
{
	// TODO: Modify the Window class or styles here by modifying
	//  the CREATESTRUCT cs

	return CView::PreCreateWindow(cs);
}

/////////////////////////////////////////////////////////////////////////////
// CChapter13AView drawing

void CChapter13AView::OnDraw(CDC* pDC)
{
	CChapter13ADoc* pDoc = GetDocument();
	ASSERT_VALID(pDoc);
	// TODO: add draw code for native data here
	//设置映射模式
	pDC->SetMapMode(MM_ANISOTROPIC);
	//客户区的大小
	CRect rcClient;
	GetClientRect (rcClient);	
	//创建输出字符串.
	CString str (_T (")))))...字体、画刷、画笔综合!"));	
	//输出透明字体
	pDC->SetBkMode (TRANSPARENT);
	pDC->SetTextColor (RGB (m_iRed,m_iGreen,m_iBlue));
	//字体定义结构
	LOGFONT stFont; 
	//设置字体格式
	memset(&stFont, 0, sizeof(LOGFONT));
	stFont.lfCharSet=134;
	stFont.lfHeight=100;
	stFont.lfWidth=0;
	strcpy(stFont.lfFaceName,"华文行楷");
	stFont.lfClipPrecision=CLIP_LH_ANGLES;
	//创建画刷
	CBrush brush(HS_DIAGCROSS,RGB (m_iRed,m_iGreen,m_iBlue+30));
	CBrush* pOldBrush;
	pOldBrush=pDC->SelectObject(&brush);	
	//每隔15度输出字符串
	for (int nAngle=3600; nAngle>0; nAngle-=150)
	{
		//设定新的旋转角度
		stFont.lfEscapement=nAngle;		
		//创建字体并选进设备上下文
		CFont font;
		font.CreateFontIndirect(&stFont);
		CFont* pOldFont=pDC ->SelectObject(&font);
		pDC->TextOut(x,y,str);	
		//创建画笔
		CPen pen(PS_SOLID,1,RGB (m_iRed,m_iGreen,m_iBlue));
		CPen* pOldPen;
		pOldPen=pDC->SelectObject(&pen);
		//路径包
		pDC->BeginPath();
		pDC->TextOut(0,0,"(((((.....路径测试:)");
		pDC->EndPath();
		pDC->StrokeAndFillPath();		
		//原来字体
		pDC->SelectObject(pOldFont);
		pDC->SelectObject(pOldPen);
		//停顿10毫秒
		Sleep(100);
	}
	//更新文本位置，文本位置为随机产生
	x=(rand()*rcClient.Width())/RAND_MAX;
	y=(rand()*rcClient.Height())/RAND_MAX;
	//恢复刷子
	pDC->SelectObject(pOldBrush);
}

/////////////////////////////////////////////////////////////////////////////
// CChapter13AView printing

BOOL CChapter13AView::OnPreparePrinting(CPrintInfo* pInfo)
{
	// default preparation
	return DoPreparePrinting(pInfo);
}

void CChapter13AView::OnBeginPrinting(CDC* /*pDC*/, CPrintInfo* /*pInfo*/)
{
	// TODO: add extra initialization before printing
}

void CChapter13AView::OnEndPrinting(CDC* /*pDC*/, CPrintInfo* /*pInfo*/)
{
	// TODO: add cleanup after printing
}

/////////////////////////////////////////////////////////////////////////////
// CChapter13AView diagnostics

#ifdef _DEBUG
void CChapter13AView::AssertValid() const
{
	CView::AssertValid();
}

void CChapter13AView::Dump(CDumpContext& dc) const
{
	CView::Dump(dc);
}

CChapter13ADoc* CChapter13AView::GetDocument() // non-debug version is inline
{
	ASSERT(m_pDocument->IsKindOf(RUNTIME_CLASS(CChapter13ADoc)));
	return (CChapter13ADoc*)m_pDocument;
}
#endif //_DEBUG

/////////////////////////////////////////////////////////////////////////////
// CChapter13AView message handlers

void CChapter13AView::OnInitialUpdate() 
{
	CView::OnInitialUpdate();
	
	// TODO: Add your specialized code here and/or call the base class
	SetTimer(0,10,NULL);
}

void CChapter13AView::OnTimer(UINT nIDEvent) 
{
	// TODO: Add your message handler code here and/or call default
	//改变文本的颜色值
	m_iRed=m_iRed<=205?m_iRed+50:(m_iRed==255?0:255);
	m_iGreen=m_iGreen<=205?m_iGreen+50:(m_iGreen==255?0:255);
	m_iBlue=m_iBlue<=205?m_iBlue+50:(m_iBlue==255?0:255);	
	//重画文字
	Invalidate();
	CView::OnTimer(nIDEvent);
}