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iadvsink.cpp
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C/C++ Source or Header
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1995-05-03
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5KB
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218 lines
/*
* IADVSINK.CPP
* Patron Chapter 17
*
* Implementation of the IAdviseSink interface for Patron's tenants.
*
* Copyright (c)1993-1995 Microsoft Corporation, All Rights Reserved
*
* Kraig Brockschmidt, Microsoft
* Internet : kraigb@microsoft.com
* Compuserve: >INTERNET:kraigb@microsoft.com
*/
#include "patron.h"
/*
* CImpIAdviseSink::CImpIAdviseSink
* CImpIAdviseSink::~CImpIAdviseSink
*
* Parameters (Constructor):
* pTenant PCTenant of the tenant we're in.
* pUnkOuter LPUNKNOWN to which we delegate.
*/
CImpIAdviseSink::CImpIAdviseSink(PCTenant pTenant
, LPUNKNOWN pUnkOuter)
{
m_cRef=0;
m_pTen=pTenant;
m_pUnkOuter=pUnkOuter;
return;
}
CImpIAdviseSink::~CImpIAdviseSink(void)
{
return;
}
/*
* CImpIAdviseSink::QueryInterface
* CImpIAdviseSink::AddRef
* CImpIAdviseSink::Release
*
* Purpose:
* IUnknown members for CImpIAdviseSink object.
*/
STDMETHODIMP CImpIAdviseSink::QueryInterface(REFIID riid, PPVOID ppv)
{
return m_pUnkOuter->QueryInterface(riid, ppv);
}
STDMETHODIMP_(ULONG) CImpIAdviseSink::AddRef(void)
{
++m_cRef;
return m_pUnkOuter->AddRef();
}
STDMETHODIMP_(ULONG) CImpIAdviseSink::Release(void)
{
--m_cRef;
return m_pUnkOuter->Release();
}
/*
* CImpIAdviseSink::OnDataChange
*
* Unused since we don't IDataObject::Advise.
*/
STDMETHODIMP_(void) CImpIAdviseSink::OnDataChange(LPFORMATETC pFEIn
, LPSTGMEDIUM pSTM)
{
return;
}
/*
* CImpIAdviseSink::OnViewChange
*
* Purpose:
* Notifes the advise sink that presentation data changed in the
* data object to which we're connected providing the right time
* to update displays using such presentations.
*
* Parameters:
* dwAspect DWORD indicating which aspect has changed.
* lindex LONG indicating the piece that changed.
*
* Return Value:
* None
*/
STDMETHODIMP_(void) CImpIAdviseSink::OnViewChange(DWORD dwAspect
, LONG lindex)
{
//Repaint only if this is the right aspect
if (dwAspect==m_pTen->m_fe.dwAspect)
{
m_pTen->m_pPG->m_fDirty=TRUE;
m_pTen->Repaint();
}
return;
}
/*
* CImpIAdviseSink::OnRename
*
* Purpose:
* Informs the advise sink that a linked object has been renamed.
* Generally only the OLE default handler cares about this.
*
* Parameters:
* pmk LPMONIKER providing the new name of the object
*
* Return Value:
* None
*/
STDMETHODIMP_(void) CImpIAdviseSink::OnRename(LPMONIKER pmk)
{
/*
* As a container this is unimportant to us since it really
* tells the handler's implementation of IOleLink that the
* object's moniker has changed. Since we get this call
* from the handler, we don't have to do anything ourselves.
*/
return;
}
/*
* CImpIAdviseSink::OnSave
*
* Purpose:
* Informs the advise sink that the OLE object has been saved
* persistently. The primary purpose of this is for containers
* that want to make optimizations for objects that are not in a
* saved state, so on this you have to disable such optimizations.
*
* Parameters:
* None
*
* Return Value:
* None
*/
STDMETHODIMP_(void) CImpIAdviseSink::OnSave(void)
{
/*
* A Container has nothing to do here as this notification is
* only useful when we have an ADVFCACHE_ONSAVE advise set up,
* which we don't. So we ignore it.
*/
return;
}
/*
* CImpIAdviseSink::OnClose
*
* Purpose:
* Informs the advise sink that the OLE object has closed and is
* no longer bound in any way.
*
* Parameters:
* None
*
* Return Value:
* None
*/
STDMETHODIMP_(void) CImpIAdviseSink::OnClose(void)
{
/*
* This doesn't have much to do with us again as it's only
* used to notify the handler's IOleLink implementation of the
* change in the object. We don't have to do anything since
* we'll also get an IOleClientSite::OnShowWindow(FALSE) to
* tell us to repaint.
*/
/*
* If we are dealing with an OLE 1.0 server it may not call
* IOleClientSite::OnShowWindow(FALSE) properly, so to protect
* ourselves we make sure the object is drawn as closed on
* this notification.
*/
m_pTen->ShowAsOpen(FALSE);
return;
}