sample10_3view.cpp

《精通MFC》源码

// SAMPLE10_3View.cpp : CSAMPLE10_3View 类的实现
//

#include "stdafx.h"
#include "SAMPLE10_3.h"

#include "SAMPLE10_3Doc.h"
#include "SAMPLE10_3View.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#endif


// CSAMPLE10_3View

IMPLEMENT_DYNCREATE(CSAMPLE10_3View, CScrollView)

BEGIN_MESSAGE_MAP(CSAMPLE10_3View, CScrollView)
	// 标准打印命令
	ON_COMMAND(ID_FILE_PRINT, CScrollView::OnFilePrint)
	ON_COMMAND(ID_FILE_PRINT_DIRECT, CScrollView::OnFilePrint)
	ON_COMMAND(ID_FILE_PRINT_PREVIEW, CScrollView::OnFilePrintPreview)
//	ON_WM_INITMENUPOPUP()
END_MESSAGE_MAP()

// CSAMPLE10_3View 构造/销毁

CSAMPLE10_3View::CSAMPLE10_3View()
{
	// TODO: 在此处添加构造代码

}

CSAMPLE10_3View::~CSAMPLE10_3View()
{
}

BOOL CSAMPLE10_3View::PreCreateWindow(CREATESTRUCT& cs)
{
	// TODO: 在此处通过修改 CREATESTRUCT cs 来修改窗口类或
	// 样式
	return CScrollView::PreCreateWindow(cs);
}

// CSAMPLE10_3View 绘制

void CSAMPLE10_3View::OnDraw(CDC* pDC)
{
	CSAMPLE10_3Doc* pDoc = GetDocument();
	ASSERT_VALID(pDoc);
	LOGFONT logFont;
	memset(&logFont, 0, sizeof(LOGFONT));
	//1英寸
	logFont.lfHeight = 100; 
	//字体
	CFont font;
	CFont* pOldFont = NULL;
	if (font.CreateFontIndirect(&logFont))
		pOldFont = pDC->SelectObject(&font);
	CString strPageTitle = GetDocument()->GetTitle();
	pDC->SetTextAlign(TA_LEFT);
	for(int i=0;i<10;i++)
	{	
		CString out;
		out.Format("第%d行",i+1);
		pDC->TextOut(i*80, i*100, out);
	}
	if (pOldFont != NULL)
		pDC->SelectObject(pOldFont);

}


// CSAMPLE10_3View 打印

BOOL CSAMPLE10_3View::OnPreparePrinting(CPrintInfo* pInfo)
{
	// 默认准备
	return DoPreparePrinting(pInfo);
}

void CSAMPLE10_3View::OnBeginPrinting(CDC* /*pDC*/, CPrintInfo* /*pInfo*/)
{
	// TODO: 打印前添加额外的初始化
}

void CSAMPLE10_3View::OnEndPrinting(CDC* /*pDC*/, CPrintInfo* /*pInfo*/)
{
	// TODO: 打印后添加清除过程
}


// CSAMPLE10_3View 诊断

#ifdef _DEBUG
void CSAMPLE10_3View::AssertValid() const
{
	CScrollView::AssertValid();
}

void CSAMPLE10_3View::Dump(CDumpContext& dc) const
{
	CScrollView::Dump(dc);
}

CSAMPLE10_3Doc* CSAMPLE10_3View::GetDocument() const // 非调试版本是内联的
{
	ASSERT(m_pDocument->IsKindOf(RUNTIME_CLASS(CSAMPLE10_3Doc)));
	return (CSAMPLE10_3Doc*)m_pDocument;
}
#endif //_DEBUG


// CSAMPLE10_3View 消息处理程序

void CSAMPLE10_3View::OnPrepareDC(CDC* pDC, CPrintInfo* pInfo)
{
	//设置逻辑单位=1/100英寸，方向为X：右；Y：下
	pDC->SetMapMode(MM_ANISOTROPIC);
	CSize sizeWindow(1,1);			
	pDC->SetWindowExt(sizeWindow);	
	//一英寸有多少象素？
	int xLogPixPerInch = pDC->GetDeviceCaps(LOGPIXELSX);
	int yLogPixPerInch = pDC->GetDeviceCaps(LOGPIXELSY);
	long xExt = (long)sizeWindow.cx * xLogPixPerInch;
	xExt /= 100 ;	
	long yExt = (long)sizeWindow.cy * yLogPixPerInch;
	yExt /= 100;	
	//物理尺寸
	pDC->SetViewportExt((int)xExt, (int)yExt);
	CScrollView::OnPrepareDC(pDC, pInfo);
}

//void CSAMPLE10_3View::OnInitMenuPopup(CMenu* pPopupMenu, UINT nIndex, BOOL bSysMenu)
//{
//	CScrollView::OnInitMenuPopup(pPopupMenu, nIndex, bSysMenu);
//
//	// TODO: 在此添加消息处理程序代码
//}

void CSAMPLE10_3View::OnInitialUpdate()
{
	//放置断言失败！	
	SetScrollSizes(MM_TEXT, CSize(0, 0));
	//设置滚动范围
	CSize sizeTotal;
	//计算此视图的合计大小，窗口大小为10英寸
	sizeTotal.cx = 1000;sizeTotal.cy = 1000;
	//一页大小	
	CSize sizePage=CSize(sizeTotal.cx,sizeTotal.cy/2);
	//一行大小
	CSize sizeLine=CSize(sizeTotal.cx,sizeTotal.cy/10);	
	CClientDC dc(NULL);
	OnPrepareDC(&dc);
	//转化为设备坐标
	dc.LPtoDP(&sizeTotal);
	dc.LPtoDP(&sizePage);
	dc.LPtoDP(&sizeLine);
	SetScrollSizes(MM_TEXT, sizeTotal,sizePage,sizeLine);
	//SetScrollSizes(MM_LOMETRIC, CSize(10*10*20,10*10*30*3),CSize(10*10*20,10*10*30),CSize(10*10,10*10));	
	// TODO: 在此添加专用代码和/或调用基类
	CScrollView::OnInitialUpdate();
}