ioleobj.cpp

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STDMETHODIMP CImpIOleObject::GetClipboardData(DWORD dwReserved
    , LPDATAOBJECT *ppIDataObj)
    {
    /*
     * Again, if you have a function to create a data object for the
     * clipboard, this is a simple implementation.  The one we have
     * does all the compound document formats already.
     */
    *ppIDataObj=m_pObj->m_pDoc->TransferObjectCreate(FALSE);
    return (NULL!=*ppIDataObj) ? NOERROR : ResultFromScode(E_FAIL);
    }





/*
 * CImpIOleObject::DoVerb
 *
 * Purpose:
 *  Executes an object-defined action.
 *
 * Parameters:
 *  iVerb           LONG index of the verb to execute.
 *  pMSG            LPMSG describing the event causing the
 *                  activation.
 *  pActiveSite     LPOLECLIENTSITE to the site involved.
 *  lIndex          LONG the piece on which execution is happening.
 *  hWndParent      HWND of window in which the object can play
 *                  in-place.
 *  pRectPos        LPRECT of the object in hWndParent where the
 *                  object can play in-place if desired.
 *
 * Return Value:
 *  HRESULT         NOERROR or a general error value.
 */

STDMETHODIMP CImpIOleObject::DoVerb(LONG iVerb, LPMSG pMSG
    , LPOLECLIENTSITE pActiveSite, LONG lIndex, HWND hWndParent
    , LPCRECT pRectPos)
    {
    HWND            hWnd, hWndT;

    //Find the upper most window
    hWndT=GetParent(m_pObj->m_pDoc->Window());

    while (NULL!=hWndT)
        {
        hWnd=hWndT;
        hWndT=GetParent(hWndT);
        }

    switch (iVerb)
        {
        case OLEIVERB_HIDE:
            ShowWindow(hWnd, SW_HIDE);
            m_pObj->SendAdvise(OBJECTCODE_HIDEWINDOW);
            break;

        case OLEIVERB_PRIMARY:
        case OLEIVERB_OPEN:
        case OLEIVERB_SHOW:
            ShowWindow(hWnd, SW_SHOW);
            SetForegroundWindow(hWnd);
            SetFocus(hWnd);

            m_pObj->SendAdvise(OBJECTCODE_SHOWOBJECT);
            m_pObj->SendAdvise(OBJECTCODE_SHOWWINDOW);
            break;

        default:
            return ResultFromScode(OLEOBJ_S_INVALIDVERB);
        }

    return NOERROR;
    }





/*
 * CImpIOleObject::EnumVerbs
 *
 * Purpose:
 *  Creates an enumerator that knows the object's verbs.  If you
 *  need to change the verb list dynamically, then you'll need to
 *  implement this, otherwise you can return OLE_S_USEREG.
 *
 * Parameters:
 *  ppEnum          LPENUMOLEVERB * into which to return the
 *                  enum.
 *
 * Return Value:
 *  HRESULT         NOERROR or a general error value.
 */

STDMETHODIMP CImpIOleObject::EnumVerbs(LPENUMOLEVERB *ppEnum)
    {
    //Trivial implementation if you fill the regDB.
    return ResultFromScode(OLE_S_USEREG);
    }





/*
 * CImpIOleObject::Update
 *
 * Purpose:
 *  Insures that the object is up to date.  This is mostly used for
 *  caching but you must make sure that you recursively call all
 *  nested objects you contain as well.
 *
 * Parameters:
 *  None
 *
 * Return Value:
 *  HRESULT         NOERROR or a general error value.
 */

STDMETHODIMP CImpIOleObject::Update(void)
    {
    //We're always updated since we don't contain.
    return NOERROR;
    }





/*
 * CImpIOleObject::IsUpToDate
 *
 * Purpose:
 *  Returns if the object is currently up to date, which involves
 *  asking all contained object inside this object if they are up
 *  to date as well.
 *
 * Parameters:
 *  None
 *
 * Return Value:
 *  HRESULT         NOERROR if successful, S_FALSE if dirty.
 */

STDMETHODIMP CImpIOleObject::IsUpToDate(void)
    {
    //We're always updated since we don't contain.
    return NOERROR;
    }





/*
 * CImpIOleObject::GetUserClassID
 *
 * Purpose:
 *  Used for linked objects, this returns the class ID of what end
 *  users think they are editing.
 *
 * Parameters:
 *  pClsID          LPCLSID in which to store the CLSID.
 *
 * Return Value:
 *  HRESULT         NOERROR or a general error value.
 */

STDMETHODIMP CImpIOleObject::GetUserClassID(LPCLSID pClsID)
    {
    /*
     * If you are not registered to handle data other than yourself,
     * then you can just return your class ID here.  If you are
     * registered as usable from Treat-As dialogs, then you need
     * to return the CLSID of what you are really editing.
     */

    *pClsID=m_pObj->m_clsID;
    return NOERROR;
    }





/*
 * CImpIOleObject::GetUserType
 *
 * Purpose:
 *  Determines the user-presentable name of the object.
 *
 * Parameters:
 *  dwForm          DWORD describing which form of the string is
 *                  desired.
 *  pszType         LPOLESTR * into which to return the pointer to
 *                  the type string.
 *
 * Return Value:
 *  HRESULT         NOERROR or a general error value.
 */

STDMETHODIMP CImpIOleObject::GetUserType(DWORD dwForm
    , LPOLESTR *ppszType)
    {
    return ResultFromScode(OLE_S_USEREG);
    }





/*
 * CImpIOleObject::SetExtent
 *
 * Purpose:
 *  Sets the size of the object in HIMETRIC units.
 *
 * Parameters:
 *  dwAspect        DWORD of the aspect affected.
 *  pszl            LPSIZEL containing the new size.
 *
 * Return Value:
 *  HRESULT         NOERROR or a general error value.
 */

STDMETHODIMP CImpIOleObject::SetExtent(DWORD dwAspect, LPSIZEL pszl)
    {
    RECT            rc;
    SIZEL           szl;

    if (!(DVASPECT_CONTENT & dwAspect))
        return ResultFromScode(E_FAIL);

    XformSizeInHimetricToPixels(NULL, pszl, &szl);

    //This resizes the window to match the container's size.
    SetRect(&rc, 0, 0, (int)szl.cx, (int)szl.cy);
    m_pObj->m_pPL->SizeSet(&rc, TRUE);

    return NOERROR;
    }





/*
 * CImpIOleObject::GetExtent
 *
 * Purpose:
 *  Retrieves the size of the object in HIMETRIC units.
 *
 * Parameters:
 *  dwAspect        DWORD of the aspect requested
 *  pszl            LPSIZEL into which to store the size.
 *
 * Return Value:
 *  HRESULT         NOERROR or a general error value.
 */

STDMETHODIMP CImpIOleObject::GetExtent(DWORD dwAspect, LPSIZEL pszl)
    {
    RECT            rc;
    SIZEL           szl;

    if (!(DVASPECT_CONTENT & dwAspect))
        return ResultFromScode(E_FAIL);

    m_pObj->m_pPL->RectGet(&rc);
    szl.cx=rc.right-rc.left;
    szl.cy=rc.bottom-rc.top;

    XformSizeInPixelsToHimetric(NULL, &szl, pszl);
    return NOERROR;
    }





/*
 * CImpIOleObject::Advise
 *
 * Purpose:
 *  Provides an IAdviseSink to the object for notifications.
 *
 * Parameters:
 *  pIAdviseSink    LPADVISESINK to notify.
 *  pdwConn         LPDWORD into which to store a connection key.
 *
 * Return Value:
 *  HRESULT         NOERROR or a general error value.
 */

STDMETHODIMP CImpIOleObject::Advise(LPADVISESINK pIAdviseSink
    , LPDWORD pdwConn)
    {
    if (NULL==m_pObj->m_pIOleAdviseHolder)
        {
        HRESULT     hr;

        hr=CreateOleAdviseHolder(&m_pObj->m_pIOleAdviseHolder);

        if (FAILED(hr))
            return hr;
        }

    return m_pObj->m_pIOleAdviseHolder->Advise(pIAdviseSink
        , pdwConn);
    }





/*
 * CImpIOleObject::Unadvise
 *
 * Purpose:
 *  Terminates a previous advise connection from Advise.
 *
 * Parameters:
 *  dwConn          DWORD connection key from Advise.
 *
 * Return Value:
 *  HRESULT         NOERROR or a general error value.
 */

STDMETHODIMP CImpIOleObject::Unadvise(DWORD dwConn)
    {
    if (NULL!=m_pObj->m_pIOleAdviseHolder)
        return m_pObj->m_pIOleAdviseHolder->Unadvise(dwConn);

    return ResultFromScode(E_FAIL);
    }





/*
 * CImpIOleObject::EnumAdvise
 *
 * Purpose:
 *  Creates and returns a enumeration of the advises on this object.
 *
 * Parameters:
 *  ppEnum          LPENUMSTATDATA * in which to return the
 *                  enumerator.
 *
 * Return Value:
 *  HRESULT         NOERROR or a general error value.
 */

STDMETHODIMP CImpIOleObject::EnumAdvise(LPENUMSTATDATA *ppEnum)
    {
    if (NULL!=m_pObj->m_pIOleAdviseHolder)
        return m_pObj->m_pIOleAdviseHolder->EnumAdvise(ppEnum);

    return ResultFromScode(E_FAIL);
    }





/*
 * CImpIOleObject::GetMiscStatus
 *
 * Purpose:
 *  Returns a set of miscellaneous status flags for the object.
 *
 * Parameters:
 *  dwAspect        DWORD of the aspect in question.
 *  pdwStatus       LPDWORD in which to store the flags.
 *
 * Return Value:
 *  HRESULT         NOERROR or a general error value.
 */

STDMETHODIMP CImpIOleObject::GetMiscStatus(DWORD dwAspect
    , LPDWORD pdwStatus)
    {
    return ResultFromScode(OLE_S_USEREG);
    }





/*
 * CImpIOleObject::SetColorScheme
 *
 * Purpose:
 *  Provides the object with the color palette as recommended by
 *  the container application that also knows the palettes of other
 *  objects.  The object here is not required to use these colors.
 *
 * Parameters:
 *  pLP             LPLOGPALETTE providing the colors.
 *
 * Return Value:
 *  HRESULT         NOERROR or a general error value.
 */

STDMETHODIMP CImpIOleObject::SetColorScheme(LPLOGPALETTE pLP)
    {
    return ResultFromScode(E_NOTIMPL);
    }