Tricks of the Windows Gam…ming Gurus (2nd Edition)/Disc2.iso/msdn_vcb/samples/vc98/mfc/ole/mfcbind/cntritem.cpp

C/C++ Source or Header | 1998-03-27 | 5.0 KB | 207 lines

// CntrItem.cpp : implementation of the CMFCBindCntrItem class
//
// This is a part of the Microsoft Foundation Classes C++ library.
// Copyright (C) 1992-1998 Microsoft Corporation
// All rights reserved.
//
// This source code is only intended as a supplement to the
// Microsoft Foundation Classes Reference and related
// electronic documentation provided with the library.
// See these sources for detailed information regarding the
// Microsoft Foundation Classes product.

#include "stdafx.h"
#include "MFCBind.h"

#include "BindDoc.h"
#include "BindView.h"
#include "CntrItem.h"
#include "mainfrm.h"
#include "ObjView.h"


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

/////////////////////////////////////////////////////////////////////////////
// CMFCBindCntrItem implementation

int CMFCBindCntrItem::m_nDocID = 1;

IMPLEMENT_SERIAL(CMFCBindCntrItem, COleDocObjectItem, 0)

CMFCBindCntrItem::CMFCBindCntrItem(CMFCBindDoc* pContainer)
    : COleDocObjectItem(pContainer)
{
}

CMFCBindCntrItem::~CMFCBindCntrItem()
{
    // TODO: add cleanup code here

}

void CMFCBindCntrItem::OnChange(OLE_NOTIFICATION nCode, DWORD dwParam)
{
    ASSERT_VALID(this);

    COleDocObjectItem::OnChange(nCode, dwParam);
    GetDocument()->UpdateAllViews(NULL);
}

BOOL CMFCBindCntrItem::OnChangeItemPosition(const CRect& rectPos)
{
    ASSERT_VALID(this);

    if (!COleDocObjectItem::OnChangeItemPosition(rectPos))
        return FALSE;
    return TRUE;
}

void CMFCBindCntrItem::OnGetItemPosition(CRect& rPosition)
{
    ASSERT_VALID(this);
    m_pView->GetClientRect(rPosition);
}

void CMFCBindCntrItem::OnActivate()
{
   CFrameWnd* pFrame = DYNAMIC_DOWNCAST(CFrameWnd, AfxGetApp()->m_pMainWnd);
   ASSERT(pFrame != NULL);

   CWnd* pView = pFrame->GetActiveView();
   ASSERT(pView != NULL);

   COleDocObjectItem* pItem =
      (COleDocObjectItem*) GetDocument()->GetInPlaceActiveItem(pView);

   // if this isn't the item being activated, deactivate it.
   if (pItem != NULL && pItem != this)
      pItem->Deactivate();

   COleDocObjectItem::OnActivate();
}

void CMFCBindCntrItem::OnDeactivateUI(BOOL bUndoable)
{
    COleDocObjectItem::OnDeactivateUI(bUndoable);
}

void CMFCBindCntrItem::Serialize(CArchive& ar)
{
    ASSERT_VALID(this);

    // Call base class first to read in COleDocObjectItem data.
    // Since this sets up the m_pDocument pointer returned from
    //  CMFCBindCntrItem::GetDocument, it is a good idea to call
    //  the base class Serialize first.
    COleDocObjectItem::Serialize(ar);

    // now store/retrieve data specific to CMFCBindCntrItem
    if (ar.IsStoring())
    {
        // TODO: add storing code here
    }
    else
    {
        // TODO: add loading code here
    }
}

/////////////////////////////////////////////////////////////////////////////
// CMFCBindCntrItem diagnostics

#ifdef _DEBUG
void CMFCBindCntrItem::AssertValid() const
{
    COleDocObjectItem::AssertValid();
}

void CMFCBindCntrItem::Dump(CDumpContext& dc) const
{
    COleDocObjectItem::Dump(dc);
}
#endif

/////////////////////////////////////////////////////////////////////////////
//

void CMFCBindCntrItem::ProcessNewObject()
{
    // This function get's an HICON for the server from the registry by
    // using our GetObjectIconFromRegistry function.  We also generate a
    // name and tell the object list view to add this information to
    // the list box.

    if (!m_lpObject)
        return; //no object, something must've gone wrong

    CString strName;
    strName.Format(_T("Section %d "), m_nDocID);
    m_nDocID++;

    HICON hIcon = GetIconFromRegistry();
    if (hIcon != NULL)
    {
        CMainFrame* pFrame = DYNAMIC_DOWNCAST(CMainFrame, AfxGetApp()->m_pMainWnd);
        ASSERT(pFrame != NULL);
        CObjListView *pListView = pFrame->GetObjListView();
        if (pListView == NULL)
            return;

        pListView->AddItem((COleDocObjectItem*) this, strName, hIcon);
    }
}

BOOL CMFCBindCntrItem::FinishCreate(SCODE sc)
{
    // FinishCreate is an undocumented virtual function that we
    // override here to do some extra processing after the object
    // has been created.

    if (FAILED(sc))
    {
        AfxMessageBox(_T("Dang, OleCreate failed to create this item!!"));
        return FALSE;
    }

    BOOL bRet = COleDocObjectItem::FinishCreate(sc);
    if (bRet)
        ProcessNewObject();
    return bRet;

}

void CMFCBindCntrItem::LoadFromMoniker(LPUNKNOWN pUnk, OLECHAR* szwName)
{
    HRESULT hr;
    // Ask the system for a URL Moniker
    IMoniker* pIMoniker;
    hr = CreateURLMoniker(NULL, (LPWSTR)szwName, &pIMoniker);
    if ( SUCCEEDED(hr) )
    {
        // Get the IPersistMoniker interface
        IPersistMoniker* pPMk;
        hr = pUnk->QueryInterface(
                                IID_IPersistMoniker,
                                (void **)&pPMk);
        if ( SUCCEEDED(hr) )
        {
                // note: do not register our BSC when calling IPM::Load directly
            IBindCtx *pBCtx;
            hr = CreateBindCtx(0, &pBCtx);
            if ( SUCCEEDED(hr) )
            {
                // Call Load on the IPersistMoniker
                hr = pPMk->Load(FALSE, pIMoniker, pBCtx, STGM_READ);
                    pBCtx->Release();
            }
            pPMk->Release();
        }
        pIMoniker->Release( );
    }
}