IOLEOBJ.CPP
/*
* IOLEOBJ.CPP
* Cosmo Chapter 18
*
* Implementation of the IOleObject interface for Polyline.
*
* Copyright (c)1993-1995 Microsoft Corporation, All Rights Reserved
*
* Kraig Brockschmidt, Microsoft
* Internet : kraigb@microsoft.com
* Compuserve: >INTERNET:kraigb@microsoft.com
*/
#include "cosmo.h"
/*
* CImpIOleObject::CImpIOleObject
* CImpIOleObject::~CImpIOleObject
*
* Parameters (Constructor):
* pObj PCFigure of the object we're in.
* pUnkOuter LPUNKNOWN to which we delegate.
*/
CImpIOleObject::CImpIOleObject(PCFigure pObj, LPUNKNOWN pUnkOuter)
{
m_cRef=0;
m_pObj=pObj;
m_pUnkOuter=pUnkOuter;
return;
}
CImpIOleObject::~CImpIOleObject(void)
{
return;
}
/*
* CImpIOleObject::QueryInterface
* CImpIOleObject::AddRef
* CImpIOleObject::Release
*/
STDMETHODIMP CImpIOleObject::QueryInterface(REFIID riid, PPVOID ppv)
{
return m_pUnkOuter->QueryInterface(riid, ppv);
}
STDMETHODIMP_(ULONG) CImpIOleObject::AddRef(void)
{
++m_cRef;
return m_pUnkOuter->AddRef();
}
STDMETHODIMP_(ULONG) CImpIOleObject::Release(void)
{
--m_cRef;
return m_pUnkOuter->Release();
}
/*
* CImpIOleObject::SetClientSite
*
* Purpose:
* Provides the object with a pointer to the IOleClient site
* representing the container in which this object resides.
*
* Parameters:
* pIOleClientSite LPOLECLIENTSITE to the container's interface.
*
* Return Value:
* HRESULT NOERROR
*/
STDMETHODIMP CImpIOleObject::SetClientSite
(LPOLECLIENTSITE pIOleClientSite)
{
if (NULL!=m_pObj->m_pIOleClientSite)
m_pObj->m_pIOleClientSite->Release();
m_pObj->m_pIOleClientSite=pIOleClientSite;
m_pObj->m_pIOleClientSite->AddRef();
return NOERROR;
}
/*
* CImpIOleObject::GetClientSite
*
* Purpose:
* Asks the object for the client site provided in SetClientSite.
* If you have not seen SetClientSite yet, return a NULL in
* ppIOleClientSite.
*
* Parameters:
* ppSite LPOLECLIENTSITE * in which to store the
* pointer.
*
* Return Value:
* HRESULT NOERROR
*/
STDMETHODIMP CImpIOleObject::GetClientSite(LPOLECLIENTSITE
*ppSite)
{
//Be sure to AddRef the new pointer you are giving away.
*ppSite=m_pObj->m_pIOleClientSite;
m_pObj->m_pIOleClientSite->AddRef();
return NOERROR;
}
/*
* CImpIOleObject::SetHostNames
*
* Purpose:
* Provides the object with names of the container application and
* the object in the container to use in object user interface.
*
* Parameters:
* pszApp LPCOLESTR of the container application.
* pszObj LPCOLESTR of some name useful in window titles.
*
* Return Value:
* HRESULT NOERROR
*/
STDMETHODIMP CImpIOleObject::SetHostNames(LPCOLESTR pszApp
, LPCOLESTR pszObj)
{
m_pObj->m_fEmbedded=TRUE;
#ifdef WIN32ANSI
char szApp[80], szObj[80];
szApp[0]=0;
szObj[0]=0;
if (NULL!=pszApp)
{
WideCharToMultiByte(CP_ACP, 0, pszApp, -1, szApp, 80
, NULL, NULL);
}
if (NULL!=pszObj)
{
WideCharToMultiByte(CP_ACP, 0, pszObj, -1, szObj, 80
, NULL, NULL);
}
m_pObj->m_pFR->UpdateEmbeddingUI(TRUE, m_pObj->m_pDoc
, szApp, szObj);
#else
m_pObj->m_pFR->UpdateEmbeddingUI(TRUE, m_pObj->m_pDoc
, pszApp, pszObj);
#endif
return NOERROR;
}
/*
* CImpIOleObject::Close
*
* Purpose:
* Forces the object to close down its user interface and unload.
*
* Parameters:
* dwSaveOption DWORD describing the circumstances under which
* the object is being saved and closed.
*
* Return Value:
* HRESULT NOERROR or a general error value.
*/
STDMETHODIMP CImpIOleObject::Close(DWORD dwSaveOption)
{
HWND hWnd;
BOOL fSave=FALSE;
hWnd=m_pObj->m_pDoc->Window();
//If object is dirty and we're asked to save, save it and close.
if (OLECLOSE_SAVEIFDIRTY==dwSaveOption && m_pObj->FIsDirty())
fSave=TRUE;
/*
* If asked to prompt, only do so if dirty, then if we get a
* YES, save as usual and close. On NO, just close. On
* CANCEL return OLE_E_PROMPTSAVECANCELLED.
*/
if (OLECLOSE_PROMPTSAVE==dwSaveOption && m_pObj->FIsDirty())
{
UINT uRet;
uRet=MessageBox(hWnd, (*m_pObj->m_pST)[IDS_CLOSECAPTION]
, (*m_pObj->m_pST)[IDS_CLOSEPROMPT], MB_YESNOCANCEL);
if (IDCANCEL==uRet)
return ResultFromScode(OLE_E_PROMPTSAVECANCELLED);
if (IDYES==uRet)
fSave=TRUE;
}
if (fSave)
{
m_pObj->SendAdvise(OBJECTCODE_SAVEOBJECT);
m_pObj->SendAdvise(OBJECTCODE_SAVED);
}
//We get directly here on OLECLOSE_NOSAVE.
PostMessage(hWnd, WM_CLOSE, 0, 0L);
return NOERROR;
}
/*
* CImpIOleObject::SetMoniker
*
* Purpose:
* Informs the object of its moniker or its container's moniker
* depending on dwWhich.
*
* Parameters:
* dwWhich DWORD describing whether the moniker is the
* object's or the container's.
* pmk LPMONIKER with the name.
*
* Return Value:
* HRESULT NOERROR or a general error value.
*/
STDMETHODIMP CImpIOleObject::SetMoniker(DWORD dwWhich
, LPMONIKER pmk)
{
//Uninteresting for embeddings only.
return ResultFromScode(E_NOTIMPL);
}
/*
* CImpIOleObject::GetMoniker
*
* Purpose:
* Asks the object for a moniker that can later be used to
* reconnect to it.
*
* Parameters:
* dwAssign DWORD determining how to assign the moniker to
* to the object.
* dwWhich DWORD describing which moniker the caller wants.
* ppmk LPMONIKER * into which to store the moniker.
*
* Return Value:
* HRESULT NOERROR or a general error value.
*/
STDMETHODIMP CImpIOleObject::GetMoniker(DWORD dwAssign
, DWORD dwWhich, LPMONIKER * ppmk)
{
//Uninteresting for embeddings only.
return ResultFromScode(E_NOTIMPL);
}
/*
* CImpIOleObject::InitFromData
*
* Purpose:
* Initializes the object from the contents of a data object.
*
* Parameters:
* pIDataObject LPDATAOBJECT containing the data.
* fCreation BOOL indicating if this is part of a new
* creation. If FALSE, the container is trying
* to paste here.
* dwReserved DWORD reserved.
*
* Return Value:
* HRESULT NOERROR or a general error value.
*/
STDMETHODIMP CImpIOleObject::InitFromData(LPDATAOBJECT pIDataObject
, BOOL fCreation, DWORD dwReserved)
{
BOOL fRet;
/*
* If we get a data object here, try to paste from it. If
* you've written clipboard code already, this is a snap.
* We don't really care about fCreation or not since pasting
* in us blasts away whatever is already here.
*/
fRet=m_pObj->m_pDoc->PasteFromData(pIDataObject);
return fRet ? NOERROR : ResultFromScode(E_FAIL);
}
/*
* CImpIOleObject::GetClipboardData
*
* Purpose:
* Returns an IDataObject pointer to the caller representing what
* would be on the clipboard if the server did an Edit/Copy using
* OleSetClipboard.
*
* Parameters:
* dwReserved DWORD reserved.
* ppIDataObj LPDATAOBJECT * into which to store the
* pointer.
*
* Return Value:
* HRESULT NOERROR or a general error value.
*/
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);
}