mainfrm.cpp

自编的一个实用的学生成绩处理管理系统。支持.dbf文件

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

#include "stdafx.h"
#include "MyStudent.h"
#include "PrintView.h"
//#include "MyStudentView.h"
#include "MyStudentDoc.h"

#include "MainFrm.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif
//定义各个视图代号
#define ID_MAINCONTROL	1
#define ID_CLASS		2
#define ID_CLASSES		3

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

IMPLEMENT_DYNCREATE(CMainFrame, CFrameWnd)

BEGIN_MESSAGE_MAP(CMainFrame, CFrameWnd)
	//{{AFX_MSG_MAP(CMainFrame)
	ON_WM_CREATE()
	ON_COMMAND(ID_VIEW_CLASS, OnViewClass)
	ON_COMMAND(ID_VIEW_CLASSES, OnViewClasses)
	ON_COMMAND(ID_VIEW_MAIN_CONTROL, OnViewMainControl)
	ON_UPDATE_COMMAND_UI(ID_VIEW_CLASS, OnUpdateViewClass)
	ON_UPDATE_COMMAND_UI(ID_VIEW_CLASSES, OnUpdateViewClasses)
	ON_UPDATE_COMMAND_UI(ID_VIEW_MAIN_CONTROL, OnUpdateViewMainControl)
	//}}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()
{
}

CMainFrame::~CMainFrame()
{
}

int CMainFrame::OnCreate(LPCREATESTRUCT lpCreateStruct)
{
	m_current_view=1;
	m_mainview=NULL;
	m_printview=NULL;

	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
	}

	m_wndToolBar.EnableDocking(CBRS_ALIGN_ANY);
	EnableDocking(CBRS_ALIGN_ANY);
	DockControlBar(&m_wndToolBar);

	return 0;
}

BOOL CMainFrame::PreCreateWindow(CREATESTRUCT& cs)
{
	cs.cx=590;
	cs.cy=495;
	cs.x=(GetSystemMetrics(SM_CXSCREEN)-cs.cx)/2;
	cs.y=(GetSystemMetrics(SM_CYSCREEN)-cs.cy)/2;

	return CFrameWnd::PreCreateWindow(cs);
}

/////////////////////////////////////////////////////////////////////////////
// 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::OnViewClass() 
{
	// TODO: Add your command handler code here
	m_current_view=ID_CLASS;
	SwitchToForm(m_current_view);
}

void CMainFrame::OnViewClasses() 
{
	// TODO: Add your command handler code here
	m_current_view=ID_CLASSES;
	SwitchToForm(m_current_view);
}

void CMainFrame::OnViewMainControl() 
{
	// TODO: Add your command handler code here
	m_current_view=ID_MAINCONTROL;
	SwitchToForm(m_current_view);
}

//==============================================================
void CMainFrame::SwitchToForm(int nForm)               //进行视图切换的代码函数
{
	  CMyStudentDoc* pDoc = (CMyStudentDoc*)GetActiveDocument();
	CString tempstr;
	//GetWindowText(tempstr);
	tempstr=pDoc->m_database;
	//----------------------------------------------------
	//----------------在第一次要切换视图时创建视图--------
	if(m_mainview==NULL)
		m_mainview=GetActiveView();//给主视图指针赋一次值
	if(m_printview==NULL)
	{
		m_printview=(CView*)new CPrintView;
		CCreateContext newcontext;//将文挡和视图相连
		newcontext.m_pCurrentDoc=GetActiveDocument();
		m_printview->Create(NULL, NULL, WS_BORDER|WS_CHILD,
        CFrameWnd::rectDefault, this, 0, &newcontext);
        m_printview->OnInitialUpdate();//对于这样创建的视图。必须这样初始化。
	}
	//------------------------------------------------------
	CView* pNewActiveView;
	CView* pOldActiveView;
    if(nForm==ID_MAINCONTROL)
    {
		pNewActiveView=m_mainview;
		pOldActiveView=m_printview;
		SetWindowText(_T(tempstr+"->主控制界面"));
    }
	else if(nForm==ID_CLASS)
	{
		pNewActiveView=m_printview;
		pOldActiveView=m_mainview;
		((CPrintView*)m_printview)->m_tagview=0;
		SetWindowText(_T(tempstr+"->分班级进行浏览，打印视图"));
	}
	else if(nForm==ID_CLASSES)
	{
		pNewActiveView=m_printview;
		pOldActiveView=m_mainview;
		((CPrintView*)m_printview)->m_tagview=1;
		SetWindowText(_T(tempstr+"->按全部班级进行浏览，打印视图"));
	}
	else
	{
		return;
	}
 	SetActiveView(pNewActiveView);        //改变活动的视图
	pNewActiveView->ShowWindow(SW_SHOW);  //显示新的视图
 	pOldActiveView->ShowWindow(SW_HIDE);  //隐藏旧的视图
	pNewActiveView->Invalidate(TRUE);		//使客户区失效，OnInitUpdate();
	pNewActiveView->UpdateData(FALSE);		//更新对话框数据显示
	pOldActiveView->SetDlgCtrlID(AFX_IDW_PANE_FIRST+1);  //隐藏旧的视图
	pNewActiveView->SetDlgCtrlID(AFX_IDW_PANE_FIRST);//很重要。为什么？
  
	RecalcLayout();          //调整框架窗口
}
//======================================================================
//======================================================================
void CMainFrame::OnUpdateViewClass(CCmdUI* pCmdUI) 
{
	// TODO: Add your command update UI handler code here
	pCmdUI->SetCheck(m_current_view==ID_CLASS);
}

void CMainFrame::OnUpdateViewClasses(CCmdUI* pCmdUI) 
{
	// TODO: Add your command update UI handler code here
	pCmdUI->SetCheck(m_current_view==ID_CLASSES);
}

void CMainFrame::OnUpdateViewMainControl(CCmdUI* pCmdUI) 
{
	// TODO: Add your command update UI handler code here
	pCmdUI->SetCheck(m_current_view==ID_MAINCONTROL);
}
//=======================================================================