mainfrm.cpp

图书借阅管理 图书借阅管理

// MainFrm.cpp : implementation of the CMainFrame class
//

#include "stdafx.h"
#include "Library.h"

#include "MainFrm.h"
#include "RegisterDlg.h"
#include "LogoutDlg.h"
#include "LibraryDoc.h"
#include "LibraryView.h"
#include "BookInfoView.h"
#include "ProviderView.h"

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

/////////////////////////////////////////////////////////////////////////////
// CMainFrame

IMPLEMENT_DYNCREATE(CMainFrame, CFrameWnd)

BEGIN_MESSAGE_MAP(CMainFrame, CFrameWnd)
	//{{AFX_MSG_MAP(CMainFrame)
	ON_WM_CREATE()
	ON_COMMAND(ID_REGISTER, OnRegisterCard)
	ON_COMMAND(ID_LOGOUT, OnLogoutCard)
	ON_COMMAND(ID_SHOWBOOKINFO, OnShowbookInfo)
	ON_UPDATE_COMMAND_UI(ID_SHOWBOOKINFO, OnUpdateShowbookinfo)
	ON_COMMAND(ID_SHOW_PRIVIDER, OnShowPrivider)
	ON_UPDATE_COMMAND_UI(ID_SHOW_PRIVIDER, OnUpdateShowPrivider)
	ON_COMMAND(ID_SHOW_BORROW, OnShowBorrow)
	ON_UPDATE_COMMAND_UI(ID_SHOW_BORROW, OnUpdateShowBorrow)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

static UINT indicators[] =
{
	ID_SEPARATOR,           // status line indicator
	ID_INDICATOR_CAPS,
	ID_INDICATOR_NUM,
	ID_INDICATOR_SCRL,
};

/////////////////////////////////////////////////////////////////////////////
// CMainFrame construction/destruction

CMainFrame::CMainFrame()
{
	// TODO: add member initialization code here
	
}

CMainFrame::~CMainFrame()
{
}

int CMainFrame::OnCreate(LPCREATESTRUCT lpCreateStruct)
{
	if (CFrameWnd::OnCreate(lpCreateStruct) == -1)
		return -1;
	
	if (!m_wndToolBar.CreateEx(this, TBSTYLE_FLAT, WS_CHILD | WS_VISIBLE | CBRS_TOP
		| CBRS_GRIPPER | CBRS_TOOLTIPS | CBRS_FLYBY | CBRS_SIZE_DYNAMIC) ||
		!m_wndToolBar.LoadToolBar(IDR_MAINFRAME))
	{
		TRACE0("Failed to create toolbar\n");
		return -1;      // fail to create
	}

	if (!m_wndStatusBar.Create(this) ||
		!m_wndStatusBar.SetIndicators(indicators,
		  sizeof(indicators)/sizeof(UINT)))
	{
		TRACE0("Failed to create status bar\n");
		return -1;      // fail to create
	}

	// TODO: Delete these three lines if you don't want the toolbar to
	//  be dockable
	m_wndToolBar.EnableDocking(CBRS_ALIGN_ANY);
	EnableDocking(CBRS_ALIGN_ANY);
	DockControlBar(&m_wndToolBar);

	return 0;
}

BOOL CMainFrame::PreCreateWindow(CREATESTRUCT& cs)
{
	if( !CFrameWnd::PreCreateWindow(cs) )
		return FALSE;
	// TODO: Modify the Window class or styles here by modifying
	//  the CREATESTRUCT cs
	return TRUE;
}

/////////////////////////////////////////////////////////////////////////////
// CMainFrame diagnostics

#ifdef _DEBUG
void CMainFrame::AssertValid() const
{
	CFrameWnd::AssertValid();
}

void CMainFrame::Dump(CDumpContext& dc) const
{
	CFrameWnd::Dump(dc);
}

#endif //_DEBUG

/////////////////////////////////////////////////////////////////////////////
// CMainFrame message handlers

void CMainFrame::OnRegisterCard() 
{
	// 注册借书卡
	CRegisterDlg dlg;
	if (dlg.DoModal() == IDOK)
	{
		// 必须填写卡号
		if (dlg.m_nID == 0)
			return;

		// 关闭数据库
		if (m_BorrowerCardSet.IsOpen() == TRUE)
			m_BorrowerCardSet.Close();

		// 查找到指定卡号的记录
		CString sCondition;
		sCondition.Format("卡号 = %d", dlg.m_nID);
		m_BorrowerCardSet.m_strFilter = sCondition;

		// 打开数据库
		m_BorrowerCardSet.Open();

		// 禁止卡号重复
		if (m_BorrowerCardSet.GetRecordCount() > 0)
		{
			AfxMessageBox("该卡号已存在，请重新输入!");
			m_BorrowerCardSet.Close();
			return;
		}

		// 取消查询
		m_BorrowerCardSet.Close();
		m_BorrowerCardSet.m_strFilter = "";
		m_BorrowerCardSet.Open();

		// 移动到最后一条记录
		if (m_BorrowerCardSet.IsEOF() == FALSE)
			m_BorrowerCardSet.MoveLast();

		// 添加新记录
		m_BorrowerCardSet.AddNew();

		// 填充各字段内容
		m_BorrowerCardSet.m_CardNum = dlg.m_nID;
		m_BorrowerCardSet.m_CardHolder = dlg.m_sName;
		m_BorrowerCardSet.m_CardHolderAddr = dlg.m_sAddress;
		m_BorrowerCardSet.m_CardHolderPhone = dlg.m_nPhone;
		m_BorrowerCardSet.m_Remark = dlg.m_sRemark;

		// 签发日期
		int year = dlg.m_oleDate.GetYear();
		int month = dlg.m_oleDate.GetMonth();
		int day = dlg.m_oleDate.GetDay();
		m_BorrowerCardSet.m_SignDate = CTime(year, month, day, 0, 0, 0);

		// 更新数据
		if (m_BorrowerCardSet.CanUpdate() == TRUE)
			m_BorrowerCardSet.Update();

		// 刷新记录
		if (m_BorrowerCardSet.CanRestart() == TRUE)
			m_BorrowerCardSet.Requery();

		// 关闭数据库
		m_BorrowerCardSet.Close();
	}
}

void CMainFrame::OnLogoutCard() 
{
	// 注销借书卡
	CLogoutDlg dlg;
	if (dlg.DoModal() == IDOK)
		// 必须填写卡号
	{
		if (dlg.m_nID == 0)
			return;

		// 关闭数据库
		if (m_BorrowerCardSet.IsOpen() == TRUE)
			m_BorrowerCardSet.Close();

		// 查找到指定卡号的记录
		CString sCondition;
		sCondition.Format("卡号 = %d", dlg.m_nID);
		m_BorrowerCardSet.m_strFilter = sCondition;

		// 打开数据库
		m_BorrowerCardSet.Open();
		
		if (m_BorrowerCardSet.GetRecordCount() == 0)
		{
			AfxMessageBox("本卡号不存在，请确认输入是否正确！");

			// 关闭数据库
			m_BorrowerCardSet.Close();
			return;			
		}

		// 移动到第一条记录
		m_BorrowerCardSet.MoveFirst();

		// 删除所有匹配记录
		while (m_BorrowerCardSet.IsEOF() == FALSE)
		{
			m_BorrowerCardSet.Delete();
			m_BorrowerCardSet.MoveNext();
		}

		// 关闭数据库
		m_BorrowerCardSet.Close();
		AfxMessageBox("该卡成功注销!");
	}
}

void CMainFrame::SwitchToForm(int nForm)
{
	// 获取原来的活动窗体的视图句柄
	CView* pOldActiveView = GetActiveView();

	// 获取由"nForm"标识的窗体所对应的视图句柄
	CView* pNewActiveView = (CView*) GetDlgItem(nForm);

	// 若视图句柄为空，则创建一新的。
	if (pNewActiveView == NULL)
	{
		if (nForm == IDD_LIBRARY_FORM)
			pNewActiveView = (CView*)new CLibraryView;
		if (nForm == IDD_BOOKINFO_FORM)
			pNewActiveView = (CView*)new CBookInfoView;
		if (nForm == IDD_PROVIDER_FORM)
			pNewActiveView = (CView*)new CProviderView;

		// 创建新视图
		CCreateContext context;
		context.m_pCurrentDoc = pOldActiveView->GetDocument();
		pNewActiveView->Create(NULL, NULL, 0L, CFrameWnd::rectDefault, this, nForm, &context);
		pNewActiveView->OnInitialUpdate();
	}

	// 选择pNewActiveView为活动窗体
	SetActiveView(pNewActiveView);

	// 显示活动窗体，隐藏非活动窗体
	pNewActiveView->ShowWindow(SW_SHOW);
	pOldActiveView->ShowWindow(SW_HIDE);
	
	// 设置ID
	int ID;
	if (pOldActiveView->GetRuntimeClass() == RUNTIME_CLASS(CLibraryView))
		ID = IDD_LIBRARY_FORM;
	if (pOldActiveView->GetRuntimeClass() == RUNTIME_CLASS(CBookInfoView))
		ID = IDD_BOOKINFO_FORM;
	if (pOldActiveView->GetRuntimeClass() == RUNTIME_CLASS(CProviderView))
		ID = IDD_PROVIDER_FORM;

	//设置窗体的ID号
	pOldActiveView->SetDlgCtrlID(ID);
	pNewActiveView->SetDlgCtrlID(AFX_IDW_PANE_FIRST);
	RecalcLayout();
}

void CMainFrame::OnShowbookInfo() 
{
	// 显示书目信息表
	if (GetActiveView()->IsKindOf(RUNTIME_CLASS(CBookInfoView)))
		return;
	SwitchToForm(IDD_BOOKINFO_FORM);
}

void CMainFrame::OnUpdateShowbookinfo(CCmdUI* pCmdUI) 
{
	// 标记当前表为书目信息表
	pCmdUI->SetCheck(GetActiveView()->IsKindOf(RUNTIME_CLASS(CBookInfoView)));
}

void CMainFrame::OnShowPrivider() 
{
	// 显示供应商信息表
	if (GetActiveView()->IsKindOf(RUNTIME_CLASS(CProviderView)))
		return;
	SwitchToForm(IDD_PROVIDER_FORM);
}

void CMainFrame::OnUpdateShowPrivider(CCmdUI* pCmdUI) 
{
	// 标记当前表为供应商信息表
	pCmdUI->SetCheck(GetActiveView()->IsKindOf(RUNTIME_CLASS(CProviderView)));
}

void CMainFrame::OnShowBorrow() 
{
	// 显示借阅信息表
	if (GetActiveView()->IsKindOf(RUNTIME_CLASS(CLibraryView)))
		return;
	SwitchToForm(IDD_LIBRARY_FORM);
}

void CMainFrame::OnUpdateShowBorrow(CCmdUI* pCmdUI) 
{
	// 标记当前表为借阅信息表
	pCmdUI->SetCheck(GetActiveView()->IsKindOf(RUNTIME_CLASS(CLibraryView)));
}