mainfrm.cpp.txt

minidatabase一个小型的数据库管理系统。有创建数据库

// MainFrm.cpp : implementation of the CMainFrame class    
//    
   
#include "stdafx.h"    
#include "MiniDatabase.h"    
   
#include "MainFrm.h"    
   
#include "DbTreeView.h"    
#include "DbDataView.h"    
#include "TextView.h"    
   
#ifdef _DEBUG    
#define new DEBUG_NEW    
#undef THIS_FILE    
static char THIS_FILE[] = __FILE__;   
#endif    
   
#define CMP_MEMORY_SIZE         256 * 1024    
   
/////////////////////////////////////////////////////////////////////////////    
// CMainFrame    
   
IMPLEMENT_DYNCREATE(CMainFrame, CFrameWnd)   
   
BEGIN_MESSAGE_MAP(CMainFrame, CFrameWnd)   
    //{{AFX_MSG_MAP(CMainFrame)    
    ON_WM_CREATE()   
    //}}AFX_MSG_MAP    
    ON_REGISTERED_MESSAGE(WM_PAGE_SELCHANGED, OnPageSelchanged)   
    ON_MESSAGE(WM_FILE_NEW, OnFileNew)   
    ON_MESSAGE(WM_FILE_OPEN, OnFileOpen)   
END_MESSAGE_MAP()   
   
static UINT indicators[] =   
{   
    ID_SEPARATOR,           // status line indicator    
    ID_EDIT_INDICATOR_POSITION,   
    ID_EDIT_INDICATOR_CRLF,   
    ID_INDICATOR_CAPS,   
    ID_INDICATOR_NUM,   
    ID_INDICATOR_SCRL,   
    ID_INDICATOR_OVR   
};   
   
/////////////////////////////////////////////////////////////////////////////    
// CMainFrame construction/destruction    
   
CMainFrame::CMainFrame()   
{   
    // TODO: add member initialization code here    
    m_pCmpMemory = NULL;   
}   
   
CMainFrame::~CMainFrame()   
{   
    if (m_pCmpMemory)   
        free(m_pCmpMemory);   
}   
   
int CMainFrame::OnCreate(LPCREATESTRUCT lpCreateStruct)   
{   
    if (CFrameWnd::OnCreate(lpCreateStruct) == -1)   
        return -1;   
       
    if (!m_wndToolBar.CreateEx(this) ||   
        !m_wndToolBar.LoadToolBar(IDR_MAINFRAME))   
    {   
        TRACE0("Failed to create toolbar\n");   
        return -1;      // fail to create    
    }   
       
    DWORD dwStyle = RBBS_GRIPPERALWAYS | RBBS_FIXEDBMP | RBBS_BREAK;   
    if (!m_wndReBar.Create(this) ||   
        !m_wndReBar.AddBar(&m_wndToolBar, NULL, NULL, dwStyle))   
    {   
        TRACE0("Failed to create rebar\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: Remove this if you don't want tool tips    
    m_wndToolBar.SetBarStyle(m_wndToolBar.GetBarStyle() |   
        CBRS_TOOLTIPS | CBRS_FLYBY);   
   
    /* 自己的按钮 */   
    if (!m_wndDockPageBar.Create(_T("DockPageBar"), this, CSize(0, 27), TRUE, 1234))   
    {   
        TRACE0("Failed to create DockPageBar.\n");   
            return -1;   
    }   
    m_wndDockPageBar.SetBarStyle(m_wndDockPageBar.GetBarStyle() |   
        CBRS_TOOLTIPS | CBRS_FLYBY | CBRS_SIZE_DYNAMIC);   
    m_wndDockPageBar.EnableDocking (CBRS_ALIGN_BOTTOM);   
   
    for (int i = 0; i < MY_VIEW_NUM; i++)   
    {   
        m_wndDockPageBar.AddPage(NULL, g_MyViews[i].title, 0);   
    }   
   
    MyActiveView(0);   
    // 设置初始化状态条显示    
    m_wndStatusBar.SetPaneText(1, g_MyViews[0].status);   
   
    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    
   
    cs.style = WS_OVERLAPPED | WS_CAPTION | FWS_ADDTOTITLE   
        | WS_THICKFRAME | WS_SYSMENU | WS_MINIMIZEBOX | WS_MAXIMIZEBOX | WS_MAXIMIZE;   
   
    return TRUE;   
}   
   
/////////////////////////////////////////////////////////////////////////////    
// CMainFrame diagnostics    
   
#ifdef _DEBUG    
void CMainFrame::AssertValid() const   
{   
    CFrameWnd::AssertValid();   
}   
   
void CMainFrame::Dump(CDumpContext& dc) const   
{   
    CFrameWnd::Dump(dc);   
}   
   
#endif //_DEBUG    
   
UINT CMainFrame::GetViewID(CView *vw)   
{   
    if (vw == NULL)   
        return MY_VIEW_NUM;   
   
    if (vw->GetParent() == &m_wndEditDb) // 新数据库    
        return EDB_VIEW_ID;   
    else if (vw->GetParent() == &m_wndCmpDb) // 比较数据库    
        return CMP_VIEW_ID;   
    else if (vw == m_pTextView) // 源文件    
        return TEXT_VIEW_ID;   
   
    return MY_VIEW_NUM;   
}   
   
void CMainFrame::MyActiveView(UINT nViewID)   
{   
    if (nViewID >= MY_VIEW_NUM)   
        return;   
   
    UINT nOldID = GetViewID(GetActiveView());   
    if (nOldID != nViewID)   
    {   
        // Disable Old view    
        switch (nOldID)   
        {   
        case EDB_VIEW_ID:   
            m_pEditDbView[0]->ShowWindow(SW_HIDE);   
            m_pEditDbView[1]->ShowWindow(SW_HIDE);   
   
            m_wndEditDb.SetDlgCtrlID(0);   
            m_wndEditDb.ShowWindow(SW_HIDE);   
            break;   
        case CMP_VIEW_ID:   
            m_pCmpDbView[0][0]->ShowWindow(SW_HIDE);   
            m_pCmpDbView[1][0]->ShowWindow(SW_HIDE);   
            m_pCmpDbView[0][1]->ShowWindow(SW_HIDE);   
            m_pCmpDbView[1][1]->ShowWindow(SW_HIDE);   
   
            m_wndCmpDb.SetDlgCtrlID(0);   
            m_wndCmpDb.ShowWindow(SW_HIDE);   
            break;   
        case TEXT_VIEW_ID:   
            m_pTextView->SetDlgCtrlID(0);   
            m_pTextView->ShowWindow(SW_HIDE);   
            break;   
        default:   
            return;   
        }   
   
        CView* pActive;   
        switch (nViewID)   
        {   
        case EDB_VIEW_ID:   
            m_pEditDbView[0]->ShowWindow(SW_SHOW);   
            m_pEditDbView[1]->ShowWindow(SW_SHOW);   
   
            m_wndEditDb.SetDlgCtrlID(AFX_IDW_PANE_FIRST);   
            m_wndEditDb.ShowWindow(SW_SHOW);   
   
            pActive = m_pEditDbView[0];   
            break;   
        case CMP_VIEW_ID:   
            m_pCmpDbView[0][0]->ShowWindow(SW_SHOW);   
            m_pCmpDbView[1][0]->ShowWindow(SW_SHOW);   
            m_pCmpDbView[0][1]->ShowWindow(SW_SHOW);   
            m_pCmpDbView[1][1]->ShowWindow(SW_SHOW);   
   
            m_wndCmpDb.SetDlgCtrlID(AFX_IDW_PANE_FIRST);   
            m_wndCmpDb.ShowWindow(SW_SHOW);   
   
            pActive = m_pCmpDbView[0][0];   
            break;   
        case TEXT_VIEW_ID:   
            m_pTextView->SetDlgCtrlID(AFX_IDW_PANE_FIRST);   
            m_pTextView->ShowWindow(SW_SHOW);   
   
            pActive = m_pTextView;   
            break;   
        default:   
            return;   
        }   
           
        SetActiveView(pActive);   
        RecalcLayout();   
    }   
   
    if (nViewID != TEXT_VIEW_ID)   
        m_wndStatusBar.SetPaneText(1, g_MyViews[nViewID].status);   
}   
   
void CMainFrame::LoadDbFile(UINT nID, CString strFile)   
{   
    CDbTreeView *pTree;   
    CDbDataView *pData;   
    switch (nID)   
    {   
    case EDB_VIEW_ID:   
        pTree = _PV(CDbTreeView, m_pEditDbView[0]);   
        pData = _PV(CDbDataView, m_pEditDbView[1]);   
        break;   
    default:   
        return;   
    }   
   
    pTree->SetDbFile(strFile);   
    pTree->PostMessage(WM_FILE_OPEN, 0, 0);   
}   
   
/////////////////////////////////////////////////////////////////////////////    
// CMainFrame message handlers    
   
   
BOOL CMainFrame::OnCreateClient(LPCREATESTRUCT lpcs, CCreateContext* pContext)    
{   
    // TODO: Add your specialized code here and/or call the base class    
    if (!CFrameWnd::OnCreateClient(lpcs, pContext))   
        return FALSE;   
   
    CRect rect;   
    GetClientRect(&rect);   
    int cx = (GetSystemMetrics(SM_CXSCREEN) - 20) / 2;   
    int cy = GetSystemMetrics(SM_CYSCREEN) - 20;   
    // 新数据库    
    if (!m_wndEditDb.CreateStatic(this, 1, 2))   
        return FALSE;   
    if (!m_wndEditDb.CreateView(0, 0, RUNTIME_CLASS(CDbTreeView), CSize(cx, cy), pContext))   
        return FALSE;   
    if (!m_wndEditDb.CreateView(0, 1, RUNTIME_CLASS(CDbDataView), CSize(cx, cy), pContext))   
        return FALSE;   
    m_pEditDbView[0] = (CView *)m_wndEditDb.GetPane(0, 0);   
    m_pEditDbView[1] = (CView *)m_wndEditDb.GetPane(0, 1);   
    _PV(CDbTreeView, m_pEditDbView[0])->SetViewID(EDB_VIEW_ID);   
    _PV(CDbDataView, m_pEditDbView[1])->SetViewID(EDB_VIEW_ID);   
    // 比较数据库    
    cy /= 2;   
    if (!m_wndCmpDb.CreateStatic(this, 2, 2))   
        return FALSE;   
    if (!m_wndCmpDb.CreateView(0, 0, RUNTIME_CLASS(CDbTreeView), CSize(cx, cy), pContext))   
        return FALSE;   
    if (!m_wndCmpDb.CreateView(1, 0, RUNTIME_CLASS(CDbDataView), CSize(cx, cy), pContext))   
        return FALSE;   
    if (!m_wndCmpDb.CreateView(0, 1, RUNTIME_CLASS(CDbTreeView), CSize(cx, cy), pContext))   
        return FALSE;   
    if (!m_wndCmpDb.CreateView(1, 1, RUNTIME_CLASS(CDbDataView), CSize(cx, cy), pContext))   
        return FALSE;   
    m_pCmpDbView[0][0] = (CView *)m_wndCmpDb.GetPane(0, 0);   
    m_pCmpDbView[1][0] = (CView *)m_wndCmpDb.GetPane(1, 0);   
    m_pCmpDbView[0][1] = (CView *)m_wndCmpDb.GetPane(0, 1);   
    m_pCmpDbView[1][1] = (CView *)m_wndCmpDb.GetPane(1, 1);   
    _PV(CDbTreeView, m_pCmpDbView[0][0])->SetViewID(CMP_VIEW_ID);   
    _PV(CDbDataView, m_pCmpDbView[1][0])->SetViewID(CMP_VIEW_ID);   
    _PV(CDbTreeView, m_pCmpDbView[0][1])->SetViewID(CMP_VIEW_ID);   
    _PV(CDbDataView, m_pCmpDbView[1][1])->SetViewID(CMP_VIEW_ID);   
   
    m_pCmpDbView[0][0]->ShowWindow(SW_HIDE);   
    m_pCmpDbView[1][0]->ShowWindow(SW_HIDE);   
    m_pCmpDbView[0][1]->ShowWindow(SW_HIDE);   
    m_pCmpDbView[1][1]->ShowWindow(SW_HIDE);   
    m_wndCmpDb.ShowWindow(SW_HIDE);   
    m_wndCmpDb.SetDlgCtrlID(0);   
    // 源文件视图    
    CCreateContext MyContext = *pContext;   
    MyContext.m_pNewViewClass = RUNTIME_CLASS(CTextView);   
    m_pTextView = (CView *)CreateView(&MyContext, AFX_IDW_PANE_FIRST);   
    _PV(CTextView, m_pTextView)->SetViewID(TEXT_VIEW_ID);   
    m_pTextView->SetDlgCtrlID(0);   
   
    m_wndEditDb.SetDlgCtrlID(AFX_IDW_PANE_FIRST);   
    SetActiveView(m_pEditDbView[0]);   
    RecalcLayout();   
   
    return TRUE;   
}   
   
void CMainFrame::OnPageSelchanged(int nPage, CWnd *pWnd)   
{   
    MyActiveView(nPage);   
}   
   
void CMainFrame::OnFileNew(WPARAM wParam, LPARAM lParam)   
{   
    switch (lParam)   
    {   
    case EDB_VIEW_ID:   
        _PV(CDbTreeView, m_pEditDbView[0])->PostMessage(WM_FILE_NEW, 0, 0);   
        break;   
    case CMP_VIEW_ID:   
        break;   
    default:   
        break;   
    }   
}   
   
void CMainFrame::OnFileOpen(WPARAM wParam, LPARAM lParam)   
{   
    switch (lParam)   
    {   
    case EDB_VIEW_ID:   
        {   
            CString strDefExt = ".dat";   
            CString strFilter = "数据库文件 (*.dat)|*.dat|All Files (*.*)|*.*||";   
            CString strFile = _PV(CDbTreeView, m_pEditDbView[0])->GetDbFile();   
            CFileDialog dlg(TRUE, strDefExt, strFile, OFN_HIDEREADONLY | OFN_OVERWRITEPROMPT, strFilter, this);   
               
            if (dlg.DoModal() == IDOK)   
            {   
                _PV(CDbTreeView, m_pEditDbView[0])->SetDbFile(dlg.m_ofn.lpstrFile);   
                LoadDbFile(lParam, dlg.m_ofn.lpstrFile);   
            }   
        }   
        break;   
    case CMP_VIEW_ID:   
        {   
            //LoadCmpDbFile(strFile1, strFile2);    
        }   
        break;   
    default:   
        break;   
    }   
}