pagepwd.cpp

485通讯接口模块的编程应用

// PagePWD.cpp : implementation file
//

#include "stdafx.h"
#include "DK20DieselizeDynamotor.h"
#include "PagePWD.h"
#include "RecordPWD.h"

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

/////////////////////////////////////////////////////////////////////////////
// CPagePWD dialog

CPagePWD::CPagePWD(CWnd* pParent /*=NULL*/)
	: CDialog(CPagePWD::IDD, pParent)
{
	//{{AFX_DATA_INIT(CPagePWD)
	m_strPWD = _T("");
	//}}AFX_DATA_INIT
}


void CPagePWD::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CPagePWD)
	DDX_Control(pDX, IDC_COMBO1, m_cbID);
	DDX_Control(pDX, IDC_BTN_LOAD, m_btnLoad);
	DDX_Control(pDX, IDC_STATIC_PWD, m_lbPWD);
	DDX_Control(pDX, IDC_STATIC_ID, m_lbID);
	DDX_Text(pDX, IDC_EDIT1, m_strPWD);
	//}}AFX_DATA_MAP
}


BEGIN_MESSAGE_MAP(CPagePWD, CDialog)
	//{{AFX_MSG_MAP(CPagePWD)
	ON_BN_CLICKED(IDC_BTN_LOAD, OnBtnLoad)
	ON_WM_PAINT()
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CPagePWD message handlers

void CPagePWD::OnBtnLoad() 
{
	UpdateData(true);
	CString strID = "";
	CString strPwd = "";
	m_cbID.GetWindowText(strID);
	TRY
	{
		CString strSql = "select * from pwd where name ='" + strID + "'";
		CRecordPWD rs1(&m_db);
		rs1.Open(CRecordPWD::forwardOnly,strSql,CRecordPWD::readOnly);
		if(!rs1.IsEOF())
		{
			rs1.GetFieldValue("PWD",strPwd );
		}
		rs1.Close();
	}
	CATCH(CDBException , e)
	{
		AfxMessageBox("Database Error:" + e->m_strError);
	}
	END_CATCH

	if (!(strPwd == m_strPWD) )
	{
		bPass = false;
		if (bChinese)
			AfxMessageBox("密码不正确！");
		else
			AfxMessageBox("	Password is not correct!");
	}
	else
		bPass = TRUE ;

	CDialog::OnOK();
}

BOOL CPagePWD::OnInitDialog() 
{
	CDialog::OnInitDialog();
	
	CenterWindow(GetDesktopWindow())  ;

	VERIFY(m_fontP.CreateFont(
		24,                        // nHeight
		0,                         // nWidth
		0,                         // nEscapement
		0,                         // nOrientation
		FW_BOLD,                 // nWeight
		FALSE,                     // bItalic
		FALSE,                     // bUnderline
		0,                         // cStrikeOut
		ANSI_CHARSET,              // nCharSet
		OUT_DEFAULT_PRECIS,        // nOutPrecision
		CLIP_DEFAULT_PRECIS,       // nClipPrecision
		DEFAULT_QUALITY,           
		DEFAULT_PITCH | FF_SWISS, 
		_T("Arial")));

	if (!bChinese)
	{
		m_lbID.SetWindowText("UserID:");
		m_lbPWD.SetWindowText("PassWord:");
		m_btnLoad.SetWindowText("Enter");
	}
	
	
	

	TRY
	{
		CString strSql = "select * from pwd";
		CString strID = "";
		CRecordPWD rs1(&m_db);
		rs1.Open(CRecordPWD::forwardOnly,strSql,CRecordPWD::readOnly);
		while (!rs1.IsEOF())
		{
			strID = "";
			rs1.GetFieldValue("name",strID );
			m_cbID.AddString(strID);
			rs1.MoveNext();
		}
		rs1.Close();
	}
	CATCH(CDBException , e)
	{
		AfxMessageBox("Database Error:" + e->m_strError);
	}
	END_CATCH
	
	return TRUE;  
}

void CPagePWD::DrawGradientFill(CDC *pDC, CRect *pRect, COLORREF crStart, COLORREF crEnd, int nSegments)
{
	COLORREF cr;
	int nR = GetRValue(crStart);
	int nG = GetGValue(crStart);
	int nB = GetBValue(crStart);
	
	int neB = GetBValue(crEnd);
	int neG = GetGValue(crEnd);
	int neR = GetRValue(crEnd);
	
	if(nSegments > pRect->Height())
		nSegments = pRect->Height();
	
	int nDiffR = (neR - nR);
	int nDiffG = (neG - nG);
	int nDiffB = (neB - nB);
	
	int ndR = 256 * (nDiffR) / (max(nSegments,1));
	int ndG = 256 * (nDiffG) / (max(nSegments,1));
	int ndB = 256 * (nDiffB) / (max(nSegments,1));
	
	nR *= 256;
	nG *= 256;
	nB *= 256;
	
	neR *= 256;
	neG *= 256;
	neB *= 256;
	
	int nCY = pRect->Height() / max(nSegments,1),  nTop = pRect->top , nBottom =nTop;
	
	CPen *hpen =(CPen*) pDC->SelectStockObject(NULL_PEN);
	for (int i = 0; i < nSegments; i++, nR += ndR, nG += ndG, nB += ndB)
	{
		if (i == (nSegments - 1))
			nTop = pRect->bottom;
		else
			nTop +=  nCY;
		
		cr = RGB(nR / 256, nG / 256, nB / 256);
		
		CBrush br(cr);
		CBrush* pbrOld = pDC->SelectObject(&br);
		
		pDC->Rectangle(pRect->left, nTop+1, pRect->right , nBottom);
		pDC->SelectObject(pbrOld);
		br.DeleteObject() ; 
		DeleteObject(pbrOld)  ; 
		pbrOld =NULL ; 
		
		
		nBottom = nTop ; 
		
	}
	pDC->SelectObject(hpen)  ; 
	DeleteObject(hpen)  ; 
	hpen = NULL ; 
}

void CPagePWD::OnPaint() 
{
	CPaintDC dc(this); 
	CRect rcClient ;   
	GetClientRect(&rcClient)  ; 
	CDC memDc ; 
	memDc.CreateCompatibleDC(&dc)  ; 
	CBitmap bitmap1 ; 
	bitmap1.CreateCompatibleBitmap(&dc , rcClient.Width(),rcClient.Height())  ; 
	
	CBitmap *oldBitmp1 = memDc.SelectObject(&bitmap1)  ; 
	
	memDc.FillSolidRect(&rcClient , RGB(173,211,198)) ; 
    
	CRect rc2(0 , 0 , 500, 20) ;
	DrawGradientFill(&memDc , &rc2 , RGB(244,198,255) ,RGB(198,255,249),5) ;

	memDc.SetTextColor(RGB(0,0,0)) ; 
	memDc.SetBkMode(TRANSPARENT)   ; 

	if (bChinese)
		memDc.DrawText(_T("请输入修改权限！"), &rc2 , DT_CENTER |DT_VCENTER	);
	else
		memDc.DrawText(_T("Please enter your password !"), &rc2 , DT_CENTER |DT_VCENTER	);
	 	
	dc.BitBlt(0,0,rcClient.Width() , rcClient.Height() , &memDc , 0,0,SRCCOPY) ; 
	memDc.SelectObject(oldBitmp1)  ; 
	bitmap1.DeleteObject() ; 
	memDc.DeleteDC() ; 
		
	DeleteObject(oldBitmp1)  ; oldBitmp1 =NULL ; 
	ReleaseDC(&dc) ; 
}