mainfrm.cpp

在本次课程设计中

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

#include "stdafx.h"
#include "超市收银管理系统.h"

#include "LoginDlg.h"
#include "Pay.h"
#include "Search.h"

#include "MainFrm.h"

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

extern loginusertype;

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

IMPLEMENT_DYNAMIC(CMainFrame, CMDIFrameWnd)

BEGIN_MESSAGE_MAP(CMainFrame, CMDIFrameWnd)
	//{{AFX_MSG_MAP(CMainFrame)
	ON_WM_CREATE()
	ON_COMMAND(ID_SYSTEM_CONNECT, OnSystemConnect)
	ON_UPDATE_COMMAND_UI(ID_SYSTEM_DISCONNECT, OnUpdateSystemDisconnect)
	ON_UPDATE_COMMAND_UI(ID_SYSTEM_CONNECT, OnUpdateSystemConnect)
	ON_UPDATE_COMMAND_UI(ID_PAY, OnUpdatePay)
	ON_UPDATE_COMMAND_UI(ID_SEARCH, OnUpdateSearch)
	ON_COMMAND(ID_SYSTEM_DISCONNECT, OnSystemDisconnect)
	ON_COMMAND(ID_PAY, OnPay)
	ON_COMMAND(ID_SEARCH, OnSearch)
	//}}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
	//设置默认值
	m_bLogin=FALSE;
	m_bPay=FALSE;
	m_bSearch=FALSE;

	//初始化指针为空
	m_pPay=NULL;
	m_pSearch=NULL;
}

CMainFrame::~CMainFrame()
{
}

int CMainFrame::OnCreate(LPCREATESTRUCT lpCreateStruct)
{
	if (CMDIFrameWnd::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( !CMDIFrameWnd::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
{
	CMDIFrameWnd::AssertValid();
}

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

#endif //_DEBUG

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


void CMainFrame::OnSystemConnect() 
{
	// TODO: Add your command handler code here
	CLoginDlg dlg;
	if(dlg.DoModal()==IDOK)
	{
		m_bLogin=TRUE;
		m_bPay=TRUE;
		if(loginusertype==2)
		{
			m_bSearch=TRUE;	
//			MessageBox("m_bSearch=TRUE");
		}
		else
		{
			m_bSearch=FALSE;
	//		MessageBox("m_bSearch=FALSE");
		}
	}
}

void CMainFrame::OnUpdateSystemDisconnect(CCmdUI* pCmdUI) 
{
	// TODO: Add your command update UI handler code here
	pCmdUI->Enable(m_bLogin);           //m_bLigin为真时 退出菜单可用
}

void CMainFrame::OnUpdateSystemConnect(CCmdUI* pCmdUI) 
{
	// TODO: Add your command update UI handler code here
	pCmdUI->Enable(!m_bLogin);
	
}

void CMainFrame::OnUpdatePay(CCmdUI* pCmdUI) 
{
	// TODO: Add your command update UI handler code here
	pCmdUI->Enable(m_bPay);
	
}

void CMainFrame::OnUpdateSearch(CCmdUI* pCmdUI) 
{
	// TODO: Add your command update UI handler code here
	pCmdUI->Enable(m_bSearch);
	
}

void CMainFrame::OnSystemDisconnect() 
{
	// TODO: Add your command handler code here
	//如果还有子窗口未关闭，强行将其关闭
	if(m_pPay)
		m_pPay->DestroyWindow();
	if(m_pSearch)
		m_pSearch->DestroyWindow();

	//设置为未登陆状态，是“登陆”按钮可用
	m_bLogin=FALSE;

	//使所有菜单皆不可用
	m_bPay=FALSE;
	m_bSearch=FALSE;
	
}

void CMainFrame::OnPay() 
{
	// TODO: Add your command handler code here
	//创建付款子框架和视图
	m_pPay=new CMyChildFrame();
	CCreateContext context;
	context.m_pNewViewClass=RUNTIME_CLASS(CPay); 
	if(!m_pPay->LoadFrame(IDR_MAINFRAME,WS_OVERLAPPEDWINDOW|FWS_PREFIXTITLE,this,&context))
		return;
	m_pPay->InitialUpdateFrame(NULL,TRUE);

	//禁止再次打开“结账”子框架和视图
	m_bPay=FALSE;
	
}

void CMainFrame::OnSearch() 
{
	// TODO: Add your command handler code here
	m_pSearch=new CMyChildFrame();
	CCreateContext context;
	context.m_pNewViewClass=RUNTIME_CLASS(CSearch); 
	if(!m_pSearch->LoadFrame(IDR_MAINFRAME,WS_OVERLAPPEDWINDOW|FWS_PREFIXTITLE,this,&context))
		return;
	m_pSearch->InitialUpdateFrame(NULL,TRUE);

	//禁止再次打开“结账”子框架和视图
	m_bSearch=FALSE;
	
}