ex6view.cpp

个人制作的一个简单的用户登陆窗口 为了实现用户密码登陆

// ex6View.cpp : implementation of the CEx6View class
//

#include "stdafx.h"
#include "ex6.h"

#include "ex6Doc.h"
#include "ex6View.h"
#include "ClassInfoSet.h"
#include "ClassInfoDlg.h"
#include "SeekClassDlg.h"

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

/////////////////////////////////////////////////////////////////////////////
// CEx6View

IMPLEMENT_DYNCREATE(CEx6View, CScrollView)

BEGIN_MESSAGE_MAP(CEx6View, CScrollView)
	//{{AFX_MSG_MAP(CEx6View)
	ON_COMMAND(ID_CLASSINFO_ADD, OnClassinfoAdd)
	ON_COMMAND(ID_CLASSINFO_SEEK, OnClassinfoSeek)
	//}}AFX_MSG_MAP
	// Standard printing commands
	ON_COMMAND(ID_FILE_PRINT, CScrollView::OnFilePrint)
	ON_COMMAND(ID_FILE_PRINT_DIRECT, CScrollView::OnFilePrint)
	ON_COMMAND(ID_FILE_PRINT_PREVIEW, CScrollView::OnFilePrintPreview)
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CEx6View construction/destruction

LOGFONT m_lfFont;
CString m_strClassNO;
CString m_strSQL;

CEx6View::CEx6View()
{
	// TODO: add construction code here
	memset(&m_lfFont,0,sizeof(LOGFONT));
	m_lfFont.lfHeight=12;
	m_lfFont.lfCharSet=GB2312_CHARSET;
	strcpy(m_lfFont.lfFaceName,"宋体");
	m_strClassNO=m_strSQL="";

}


CEx6View::~CEx6View()
{
}

BOOL CEx6View::PreCreateWindow(CREATESTRUCT& cs)
{
	// TODO: Modify the Window class or styles here by modifying
	//  the CREATESTRUCT cs

	return CScrollView::PreCreateWindow(cs);
}

/////////////////////////////////////////////////////////////////////////////
// CEx6View drawing

void CEx6View::OnDraw(CDC* pDC)
{
	CEx6Doc* pDoc = GetDocument();
	ASSERT_VALID(pDoc);
	// TODO: add draw code for native data here
	CFont font;
	font.CreateFontIndirect(&m_lfFont);
	CFont *oldFont = pDC->SelectObject(&font);
	DispClassInfo(pDC,m_strClassNO,m_strSQL);
	pDC->SelectObject(oldFont);
}

void CEx6View::OnInitialUpdate()
{
	CScrollView::OnInitialUpdate();

	CSize sizeTotal;
	// TODO: calculate the total size of this view
	sizeTotal.cx = sizeTotal.cy = 100;
	SetScrollSizes(MM_TEXT, sizeTotal);
}

/////////////////////////////////////////////////////////////////////////////
// CEx6View printing

BOOL CEx6View::OnPreparePrinting(CPrintInfo* pInfo)
{
	// default preparation
	return DoPreparePrinting(pInfo);
}

void CEx6View::OnBeginPrinting(CDC* /*pDC*/, CPrintInfo* /*pInfo*/)
{
	// TODO: add extra initialization before printing
}

void CEx6View::OnEndPrinting(CDC* /*pDC*/, CPrintInfo* /*pInfo*/)
{
	// TODO: add cleanup after printing
}

void CEx6View::DispClassInfo(CDC *pDC,CString strClass,CString strSQL)
{
	CFont font;
	LOGFONT lf=m_lfFont;
	lf.lfWeight=700;
	strcpy(lf.lfFaceName,"幼圆");
	font.CreateFontIndirect(&lf);
	TEXTMETRIC tm;
	pDC->GetTextMetrics(&tm);
	int nLineHeight=(int)((tm.tmHeight+tm.tmExternalLeading)*1.5);

	int x=0,y=0,nWidth;
	CFont *oldFont = pDC->SelectObject(&font);

	CString strHeader[]={"班级号","所在院系","专业名称","学制","入学时间"};
	int nStrWidth[]={10,25,25,8,10};
	CClassInfoSet cSet;
	cSet.m_strFilter=strSQL;
	cSet.Open();
		for(UINT i=0;i<cSet.m_nFields;i++)
		{
			nWidth=tm.tmAveCharWidth*nStrWidth[i];
			pDC->TextOut(x,y,strHeader[i]);
			x +=nWidth;
		}
	pDC->SelectObject(oldFont);

	CString str;
	while(!cSet.IsEOF())
	{
		if(strClass==cSet.m_classno){
			lf.lfWeight=0;
			strcpy(lf.lfFaceName,"楷体_GB2312"/*宋体_GB2312*/);
			font.DeleteObject();
			font.CreateFontIndirect(&lf);
			pDC->SelectObject(&font);
		}else
			pDC->SelectObject(oldFont);
		x=0;y+=nLineHeight;
		for(UINT i=0;i<cSet.m_nFields;i++){
			cSet.GetFieldValue(i,str);

			nWidth=tm.tmAveCharWidth*nStrWidth[i];
			pDC->TextOut(x,y,str);
			x+=nWidth;
		}
		cSet.MoveNext();
	}
	cSet.Close();

	CSize sizeTotal;
	sizeTotal.cx=x + nWidth; sizeTotal.cy=y + nLineHeight;
	SetScrollSizes(MM_TEXT,sizeTotal);
}

/////////////////////////////////////////////////////////////////////////////
// CEx6View diagnostics

#ifdef _DEBUG
void CEx6View::AssertValid() const
{
	CScrollView::AssertValid();
}

void CEx6View::Dump(CDumpContext& dc) const
{
	CScrollView::Dump(dc);
}



CEx6Doc* CEx6View::GetDocument() // non-debug version is inline
{
	ASSERT(m_pDocument->IsKindOf(RUNTIME_CLASS(CEx6Doc)));
	return (CEx6Doc*)m_pDocument;
}
#endif //_DEBUG

/////////////////////////////////////////////////////////////////////////////
// CEx6View message handlers

void CEx6View::OnClassinfoAdd() 
{
	// TODO: Add your command handler code here
	CClassInfoDlg dlg;
	if(dlg.DoModal()!=IDOK)return;

	CClassInfoSet infoSet;
	infoSet.m_strFilter.Format("classno='%s' AND depart='%s' AND special='%s'",
		dlg.m_strClassNO,dlg.m_strDepart,dlg.m_strSpecial);
	infoSet.Open();
	if(!infoSet.IsEOF()){
		MessageBox(dlg.m_strClassNO+"班级记录已添加过!");
		if(infoSet.IsOpen()) infoSet.Close();
		return;
	}
	if(infoSet.IsOpen())infoSet.Close();
	CClassInfoSet addSet;
	if(addSet.Open()){
		addSet.AddNew();
		addSet.m_classno=dlg.m_strClassNO;
		addSet.m_depart=dlg.m_strDepart;
		addSet.m_entertime=dlg.m_tEnter;
		addSet.m_special=dlg.m_strSpecial;
		addSet.m_studyyear=(float)atof(dlg.m_strYear);
		addSet.Update();
		addSet.Requery();
	}
	if(addSet.IsOpen())addSet.Close();

	m_strClassNO=dlg.m_strClassNO;
	m_strSQL="";
	MessageBox("稍等片刻，单击[确定]按钮!",
		"特别提示",MB_OK|MB_ICONINFORMATION);
	Invalidate();
}

void CEx6View::OnClassinfoSeek() 
{
	// TODO: Add your command handler code here
	CSeekClassDlg dlg;
	if(dlg.DoModal()==IDOK){
		m_strClassNO="";
		m_strSQL=dlg.m_strSQL;
		Invalidate();
	}
	
}