data_disp1dlg.cpp

数据库是存储数据的仓库

// Data_Disp1Dlg.cpp : implementation file
//

#include "stdafx.h"
#include "Data_Disp1.h"
#include "Data_Disp1Dlg.h"

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

extern CData_Disp1App theApp;

/////////////////////////////////////////////////////////////////////////////
// CAboutDlg dialog used for App About

class CAboutDlg : public CDialog
{
public:
	CAboutDlg();

// Dialog Data
	//{{AFX_DATA(CAboutDlg)
	enum { IDD = IDD_ABOUTBOX };
	//}}AFX_DATA

	// ClassWizard generated virtual function overrides
	//{{AFX_VIRTUAL(CAboutDlg)
	protected:
	virtual void DoDataExchange(CDataExchange* pDX);    // DDX/DDV support
	//}}AFX_VIRTUAL

// Implementation
protected:
	//{{AFX_MSG(CAboutDlg)
	//}}AFX_MSG
	DECLARE_MESSAGE_MAP()
};

CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD)
{
	//{{AFX_DATA_INIT(CAboutDlg)
	//}}AFX_DATA_INIT
}

void CAboutDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CAboutDlg)
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CAboutDlg, CDialog)
	//{{AFX_MSG_MAP(CAboutDlg)
		// No message handlers
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CData_Disp1Dlg dialog

CData_Disp1Dlg::CData_Disp1Dlg(CWnd* pParent /*=NULL*/)
	: CDialog(CData_Disp1Dlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CData_Disp1Dlg)
	m_strName = _T("");
	m_timeBitrh = COleDateTime::GetCurrentTime();
	m_strAddress = _T("");
	m_nPhone = 0;
	m_nSex = 0;
	m_strRemark = _T("");
	m_strEmail = _T("");
	//}}AFX_DATA_INIT
	// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
	m_bModify = FALSE;
	m_bNewRecord = FALSE;
	m_hPhotoBitmap = NULL;
	m_pBMPBuffer = NULL;
}


void CData_Disp1Dlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CData_Disp1Dlg)
	DDX_Control(pDX, IDC_EDIT_REMARK, m_editRemark);
	DDX_Control(pDX, IDC_BUTTON_Edit, m_btnEdit);
	DDX_Control(pDX, IDC_EDIT_Email, m_editEmail);
	DDX_Control(pDX, IDC_BUTTON_SEL_PHOTO, m_btnSelPhoto);
	DDX_Control(pDX, IDC_BUTTON_SAVE, m_btnSave);
	DDX_Control(pDX, IDC_BUTTON_DELETE, m_btnDelete);
	DDX_Control(pDX, IDC_BUTTON_ADD, m_btnAdd);
	DDX_Control(pDX, IDC_RADIO_MALE, m_btnSex);
	DDX_Control(pDX, IDC_EDIT_PHONE, m_editPhone);
	DDX_Control(pDX, IDC_EDIT_NAME, m_editName);
	DDX_Control(pDX, IDC_EDIT_ADDRESS, m_editAddress);
	DDX_Control(pDX, IDC_DATETIMEPICKER_BITRHDAY, m_ctrlBirth);
	DDX_Control(pDX, IDC_BUTTON_NEXT, m_btnNext);
	DDX_Control(pDX, IDC_BUTTON_PREVIEW, m_btnPreview);
	DDX_Text(pDX, IDC_EDIT_NAME, m_strName);
	DDX_DateTimeCtrl(pDX, IDC_DATETIMEPICKER_BITRHDAY, m_timeBitrh);
	DDX_Text(pDX, IDC_EDIT_ADDRESS, m_strAddress);
	DDX_Text(pDX, IDC_EDIT_PHONE, m_nPhone);
	DDX_Radio(pDX, IDC_RADIO_MALE, m_nSex);
	DDX_Text(pDX, IDC_EDIT_REMARK, m_strRemark);
	DDX_Text(pDX, IDC_EDIT_Email, m_strEmail);
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CData_Disp1Dlg, CDialog)
	//{{AFX_MSG_MAP(CData_Disp1Dlg)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_BN_CLICKED(IDC_BUTTON_NEXT, OnButtonNext)
	ON_BN_CLICKED(IDC_BUTTON_PREVIEW, OnButtonPreview)
	ON_BN_CLICKED(IDC_BUTTON_ADD, OnButtonAdd)
	ON_BN_CLICKED(IDC_BUTTON_DELETE, OnButtonDelete)
	ON_BN_CLICKED(IDC_BUTTON_SAVE, OnButtonSave)
	ON_BN_CLICKED(IDC_BUTTON_FIRST, OnButtonFirst)
	ON_BN_CLICKED(IDC_BUTTON_LAST, OnButtonLast)
	ON_NOTIFY(DTN_DATETIMECHANGE, IDC_DATETIMEPICKER_BITRHDAY, OnDatetimechangeDatetimepickerBitrhday)
	ON_BN_CLICKED(IDC_BUTTON_SEL_PHOTO, OnButtonSelPhoto)
	ON_BN_CLICKED(IDC_BUTTON_Edit, OnButtonEdit)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CData_Disp1Dlg message handlers

BOOL CData_Disp1Dlg::OnInitDialog()
{
	CDialog::OnInitDialog();

	// Add "About..." menu item to system menu.

	// IDM_ABOUTBOX must be in the system command range.
	ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX);
	ASSERT(IDM_ABOUTBOX < 0xF000);

	CMenu* pSysMenu = GetSystemMenu(FALSE);
	if (pSysMenu != NULL)
	{
		CString strAboutMenu;
		strAboutMenu.LoadString(IDS_ABOUTBOX);
		if (!strAboutMenu.IsEmpty())
		{
			pSysMenu->AppendMenu(MF_SEPARATOR);
			pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu);
		}
	}

	// Set the icon for this dialog.  The framework does this automatically
	//  when the application's main window is not a dialog
	SetIcon(m_hIcon, TRUE);			// Set big icon
	SetIcon(m_hIcon, FALSE);		// Set small icon
	
	// TODO: Add extra initialization here
    
	m_pRecordset.CreateInstance("ADODB.Recordset");
	HRESULT hr = m_pRecordset->Open("SELECT * FROM Addresslist",_variant_t((IDispatch *)theApp.m_pConnection,true),adOpenDynamic,adLockPessimistic,adCmdText);

	if(SUCCEEDED(hr))
	{
		ReadData();
	}
	ResetControls();

	return TRUE;  // return TRUE  unless you set the focus to a control
}

void CData_Disp1Dlg::ResetControls()
{
	BOOL IsFirstRecord = FirstRecord();
	BOOL IsLastRecord = LastRecord();
	m_btnPreview.EnableWindow(!IsFirstRecord);
	m_btnNext.EnableWindow(!IsLastRecord);
}

//--------------判断是否是第一个记录---------------//
BOOL CData_Disp1Dlg::FirstRecord()
{
	if(m_pRecordset->BOF)
	{
		m_editName.EnableWindow(FALSE);
		m_btnSex.EnableWindow(FALSE);
		m_editEmail.EnableWindow(FALSE);
		m_ctrlBirth.EnableWindow(FALSE);	
		m_editAddress.EnableWindow(FALSE);
		m_editPhone.EnableWindow(FALSE);
		m_editRemark.EnableWindow(FALSE);
		m_btnSelPhoto.EnableWindow(FALSE);
		return TRUE;
	}
	m_pRecordset->MovePrevious();
	if(m_pRecordset->BOF)
	{
		m_pRecordset->MoveFirst();
		return TRUE;
	}
	else
	{
		m_pRecordset->MoveNext();
		return FALSE;
	}
}

//-----------------判断是否是最后一个记录--------------//
BOOL CData_Disp1Dlg::LastRecord()
{
	if(m_pRecordset->adoEOF)
	{
		m_editName.EnableWindow(FALSE);
		m_btnSex.EnableWindow(FALSE);
		m_editEmail.EnableWindow(FALSE);
		m_ctrlBirth.EnableWindow(FALSE);	
		m_editAddress.EnableWindow(FALSE);
		m_editPhone.EnableWindow(FALSE);
		m_editRemark.EnableWindow(FALSE);

		return TRUE;
	}
	m_pRecordset->MoveNext();
	if(m_pRecordset->adoEOF)
	{
		m_pRecordset->MovePrevious();
		return TRUE;
	}
	else
	{
		m_pRecordset->MovePrevious();
		return FALSE;
	}
}

//------------读取记录集当前记录中数据---------------//
void CData_Disp1Dlg::ReadData()
{
	DestroyPhoto();	
	if(m_pRecordset->adoEOF||m_pRecordset->BOF) 
	{
		m_strName.Empty();
		m_nSex=0;	
		m_timeBitrh= COleDateTime::GetCurrentTime();	
		m_nPhone=0;
		m_strRemark.Empty();
        m_strEmail.Empty();
		UpdateData(FALSE);
		return;
	}

	//------------------------------//
	long lDataSize = m_pRecordset->GetFields()->GetItem("PHOTO")->ActualSize;
	if(lDataSize > 0)
	{
		_variant_t			varBLOB;
		varBLOB = m_pRecordset->GetFields()->GetItem("photo")->GetChunk(lDataSize);
		if(varBLOB.vt == (VT_ARRAY | VT_UI1))
		{
			if(m_pBMPBuffer = new char[lDataSize+1])				///重新分配必要的存储空间
			{	
				char *pBuf = NULL;
				SafeArrayAccessData(varBLOB.parray,(void **)&pBuf);
				memcpy(m_pBMPBuffer,pBuf,lDataSize);				///复制数据到缓冲区m_pBMPBuffer
				SafeArrayUnaccessData (varBLOB.parray);
				m_nFileLen = lDataSize;
				m_hPhotoBitmap = BufferToHBITMAP();					///生成BITMAP对象
			}
		}
	}
	//------------------------------//
	m_strName = m_pRecordset->GetCollect("NAME").bstrVal;
	m_nSex = m_pRecordset->GetCollect("SEX").lVal;
	m_timeBitrh= m_pRecordset->GetCollect("BIRTH").date;
	m_strAddress= m_pRecordset->GetCollect("ADDRESS").bstrVal;	
	m_nPhone= m_pRecordset->GetCollect("PHONE").lVal;
	m_strRemark=m_pRecordset->GetCollect("REMARK").bstrVal;		
    m_strEmail=m_pRecordset->GetCollect("Email").bstrVal;

	m_editName.EnableWindow();
	m_btnSex.EnableWindow();
	m_ctrlBirth.EnableWindow();
	m_editAddress.EnableWindow();
	m_editPhone.EnableWindow();
	m_editRemark.EnableWindow();
    m_editEmail.EnableWindow();

	m_btnSelPhoto.EnableWindow();
	m_btnSave.EnableWindow(FALSE);
	m_btnDelete.EnableWindow();
	UpdateData(FALSE);
}


void CData_Disp1Dlg::OnSysCommand(UINT nID, LPARAM lParam)
{
	if ((nID & 0xFFF0) == IDM_ABOUTBOX)
	{
		CAboutDlg dlgAbout;
		dlgAbout.DoModal();
	}
	else
	{
		CDialog::OnSysCommand(nID, lParam);
	}
}


void CData_Disp1Dlg::OnPaint() 
{
	CPaintDC dc(this); // device context for painting
	if (IsIconic())
	{
		SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0);

		// Center icon in client rectangle
		int cxIcon = GetSystemMetrics(SM_CXICON);
		int cyIcon = GetSystemMetrics(SM_CYICON);
		CRect rect;
		GetClientRect(&rect);
		int x = (rect.Width() - cxIcon + 1) / 2;
		int y = (rect.Height() - cyIcon + 1) / 2;

		// Draw the icon
		dc.DrawIcon(x, y, m_hIcon);
	}
	else
	{	
		CWnd *pWnd = GetDlgItem(IDC_PICTURE);
		CRect rect; 
		pWnd->GetClientRect(&rect);
		DrawUserPhoto(rect.left,rect.top,&dc);
		CDialog::OnPaint();
	}
}

//-----------在屏幕上显示图像-------------------//
void CData_Disp1Dlg::DrawUserPhoto(int x, int y, CDC *pDC)
{
	if(!m_hPhotoBitmap) return;