iipaobj.cpp

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/*
 * IIPAOBJ.CPP
 * Cosmo Chapter 23
 *
 * IOleInPlaceActiveObject interface implementation for Cosmo
 *
 * Copyright (c)1993-1995 Microsoft Corporation, All Rights Reserved
 *
 * Kraig Brockschmidt, Microsoft
 * Internet  :  [e-mail]
 * Compuserve:  >INTERNET:[e-mail]
 */


#include "cosmo.h"


/*
 * CImpIOleInPlaceActiveObject::CImpIOleInPlaceActiveObject
 * CImpIOleInPlaceActiveObject::~CImpIOleInPlaceActiveObject
 *
 * Parameters (Constructor):
 *  pObj            PCFigure of the object we're in.
 *  pUnkOuter       LPUNKNOWN to which we delegate.
 */

CImpIOleInPlaceActiveObject::CImpIOleInPlaceActiveObject
    (PCFigure pObj, LPUNKNOWN pUnkOuter)
    {
    m_cRef=0;
    m_pObj=pObj;
    m_pUnkOuter=pUnkOuter;
    return;
    }

CImpIOleInPlaceActiveObject::~CImpIOleInPlaceActiveObject(void)
    {
    return;
    }



/*
 * CImpIOleInPlaceActiveObject::QueryInterface
 * CImpIOleInPlaceActiveObject::AddRef
 * CImpIOleInPlaceActiveObject::Release
 *
 * Purpose:
 *  IUnknown members for CImpIOleInPlaceActiveObject object.
 */

STDMETHODIMP CImpIOleInPlaceActiveObject::QueryInterface(REFIID riid
    , PPVOID ppv)
    {
    /*
     * This interface should be stand-alone on an object such that
     * a container cannot QueryInterface for it through any other
     * object interface, relying instead of calls to SetActiveObject
     * for it. By implementing QueryInterface here ourselves, we
     * prevent such abuses.  Note that reference counting still
     * uses CFigure.
     */

    *ppv=NULL;

    if (IID_IUnknown==riid || IID_IOleWindow==riid
        || IID_IOleInPlaceActiveObject==riid)
        *ppv=this;

    if (NULL!=*ppv)
        {
        ((LPUNKNOWN)*ppv)->AddRef();
        return NOERROR;
        }

    return ResultFromScode(E_NOINTERFACE);
    }


STDMETHODIMP_(ULONG) CImpIOleInPlaceActiveObject::AddRef(void)
    {
    ++m_cRef;
    return m_pUnkOuter->AddRef();
    }

STDMETHODIMP_(ULONG) CImpIOleInPlaceActiveObject::Release(void)
    {
    --m_cRef;
    return m_pUnkOuter->Release();
    }




/*
 * CImpIOleInPlaceActiveObject::GetWindow
 *
 * Purpose:
 *  Retrieves the handle of the window associated with the object
 *  on which this interface is implemented.
 *
 * Parameters:
 *  phWnd           HWND * in which to store the window handle.
 *
 * Return Value:
 *  HRESULT         NOERROR if successful, E_FAIL if there is no
 *                  window.
 */

STDMETHODIMP CImpIOleInPlaceActiveObject::GetWindow(HWND * phWnd)
    {
    *phWnd=m_pObj->m_pHW->Window();
    return NOERROR;
    }




/*
 * CImpIOleInPlaceActiveObject::ContextSensitiveHelp
 *
 * Purpose:
 *  Instructs the object on which this interface is implemented to
 *  enter or leave a context-sensitive help mode.
 *
 * Parameters:
 *  fEnterMode      BOOL TRUE to enter the mode, FALSE otherwise.
 *
 * Return Value:
 *  HRESULT         NOERROR or an error code
 */

STDMETHODIMP CImpIOleInPlaceActiveObject::ContextSensitiveHelp
    (BOOL fEnterMode)
    {
    return ResultFromScode(E_NOTIMPL);
    }




/*
 * CImpIOleInPlaceActiveObject::TranslateAccelerator
 *
 * Purpose:
 *  Requests that the active in-place object translate the message
 *  given in pMSG if appropriate.
 *
 * Parameters:
 *  pMSG            LPMSG to the message to translate.
 *
 * Return Value:
 *  HRESULT         NOERROR if translates, S_FALSE if not.
 */

STDMETHODIMP CImpIOleInPlaceActiveObject::TranslateAccelerator
    (LPMSG pMSG)
    {
    //This is only used for DLL objects.
    return ResultFromScode(S_FALSE);
    }




/*
 * CImpIOleInPlaceActiveObject::OnFrameWindowActivate
 *
 * Purpose:
 *  Informs the in-place object that the container's frame window
 *  was either activated or deactivated.  When the frame is
 *  activated, the object can change its toolbar interface to
 *  reflect a non-activated state as desired.  Usually you don't
 *  have to do anything.
 *
 * Parameters:
 *  fActivate       BOOL TRUE if the frame is active, FALSE
 *                  otherwise
 * Return Value:
 *  HRESULT         NOERROR or an error code
 */

STDMETHODIMP CImpIOleInPlaceActiveObject::OnFrameWindowActivate
    (BOOL fActivate)
    {
    //Nothing for us to do.
    return NOERROR;
    }




/*
 * CImpIOleInPlaceActiveObject::OnDocWindowActivate
 *
 * Purpose:
 *  Informs the in-place object that the document window in the
 *  container is either becoming active or deactive.  On this call
 *  the object must either add or remove frame-level tools,
 *  including the mixed menu, depending on fActivate.
 *
 * Parameters:
 *  fActivate       BOOL TRUE if the document is active, FALSE
 *                  otherwise
 *
 * Return Value:
 *  HRESULT         NOERROR or an error code
 */

STDMETHODIMP CImpIOleInPlaceActiveObject::OnDocWindowActivate
    (BOOL fActivate)
    {
    HWND        hWndTB;

    if (NULL==m_pObj->m_pIOleIPFrame)
        return NOERROR;

    hWndTB=m_pObj->m_pTB->Window();

    if (fActivate)
        {
       #ifdef WIN32ANSI
        OLECHAR     szTemp[40];

        MultiByteToWideChar(CP_ACP, 0
            , (*m_pObj->m_pST)[IDS_INPLACETITLE], -1, szTemp, 40);
        m_pObj->m_pIOleIPFrame->SetActiveObject(this, szTemp);
       #else
        m_pObj->m_pIOleIPFrame->SetActiveObject(this
            , (*m_pObj->m_pST)[IDS_INPLACETITLE]);
       #endif

        m_pObj->m_pIOleIPFrame->SetMenu(m_pObj->m_hMenuShared
            , m_pObj->m_hOLEMenu, m_pObj->m_pFR->Window());

        if (m_pObj->InPlaceToolsRenegotiate())
            {
            RECT    rc;

            m_pObj->m_pIOleIPFrame->GetBorder(&rc);
            SetWindowPos(hWndTB, NULL, rc.left, rc.top
                , rc.right-rc.left, rc.top+m_pObj->m_cyBar
                , SWP_NOZORDER);

            ShowWindow(hWndTB, SW_SHOW);
            }
        }
    else
        {
        m_pObj->m_pIOleIPFrame->SetActiveObject(NULL, NULL);

        //Hide our tools, but do not call SetMenu
        ShowWindow(hWndTB, SW_HIDE);
        }

    return NOERROR;
    }




/*
 * CImpIOleInPlaceActiveObject::ResizeBorder
 *
 * Purpose:
 *  Informs the object that the frame or document size changed in
 *  which case the object may need to resize any of its frame or
 *  document-level tools to match.
 *
 * Parameters:
 *  pRect           LPCRECT indicating the new size of the window
 *                  of interest.
 *  pIUIWindow      LPOLEINPLACEUIWINDOW pointing to an
 *                  IOleInPlaceUIWindow interface on the container
 *                  object of interest.  We use this to do border-
 *                  space negotiation.
 *  fFrame          BOOL indicating if the frame was resized (TRUE)
 *                  or the document (FALSE)
 *
 * Return Value:
 *  HRESULT         NOERROR or an error code
 */

STDMETHODIMP CImpIOleInPlaceActiveObject::ResizeBorder(LPCRECT pRect
    , LPOLEINPLACEUIWINDOW pIUIWindow, BOOL fFrame)
    {
    //The document case is uninteresting for us.
    if (!fFrame)
        return NOERROR;

    if (!m_pObj->InPlaceToolsRenegotiate())
        return ResultFromScode(INPLACE_E_NOTOOLSPACE);

    SetWindowPos(m_pObj->m_pTB->Window(), NULL, pRect->left
        , pRect->top, pRect->right-pRect->left, m_pObj->m_cyBar
        , SWP_NOZORDER);

    return NOERROR;
    }




/*
 * CImpIOleInPlaceActiveObject::EnableModeless
 *
 * Purpose:
 *  Instructs the object to show or hide any modeless popup windows
 *  that it may be using when activated in-place.
 *
 * Parameters:
 *  fEnable         BOOL indicating to enable/show the windows
 *                  (TRUE) or to hide them (FALSE).
 *
 * Return Value:
 *  HRESULT         NOERROR or an error code
 */

STDMETHODIMP CImpIOleInPlaceActiveObject::EnableModeless
    (BOOL fActivate)
    {
    return ResultFromScode(E_NOTIMPL);
    }