NOTIFY.H

//+----------------------------------------------------------------------- 
// 
//  TDC / STD Notifications 
//  Copyright (C) Microsoft Corporation, 1996, 1997 
// 
//  File:       Notify.h 
// 
//  Contents:   Declaration of the CEventBroker class. 
//              This class translates internal TDC / STD events into 
//              appropriate notifications for the external world. 
// 
//------------------------------------------------------------------------ 
 
#include "msdatsrc.h" 
 
template <class T> class CMyBindStatusCallback; 
class CTDCCtl; 
 
interface DATASRCListener : public IUnknown 
{ 
    STDMETHOD(datasrcChanged)(BSTR bstrQualifier, BOOL fDataAvail); 
}; 
 
//------------------------------------------------------------------------ 
// 
//  CEventBroker 
// 
//  This class translates internal STD / TDC events into appropriate 
//  notifications for the outside world. 
// 
//------------------------------------------------------------------------ 
 
class CEventBroker 
{ 
public: 
    STDMETHOD_(ULONG,AddRef)    (THIS); 
    STDMETHOD_(ULONG,Release)   (THIS); 
// ;begin_internal 
    STDMETHOD(SetDATASRCListener)(DATASRCListener *); 
// ;end_internal 
    STDMETHOD(SetDataSourceListener)(DataSourceListener *); 
    STDMETHOD(SetSTDEvents)(OLEDBSimpleProviderListener *); 
    inline DataSourceListener *GetDataSourceListener(); 
    inline DATASRCListener *GetDATASRCListener(); 
    inline OLEDBSimpleProviderListener *GetSTDEvents(); 
 
    CEventBroker(CTDCCtl *pReadyStateControl); 
    ~CEventBroker(); 
 
    STDMETHOD(aboutToChangeCell)(LONG iRow, LONG iCol); 
    STDMETHOD(cellChanged)(LONG iRow, LONG iCol); 
    STDMETHOD(aboutToDeleteRows)(LONG iRowStart, LONG iRowCount); 
    STDMETHOD(deletedRows)(LONG iRowStart, LONG iRowCount); 
    STDMETHOD(aboutToInsertRows)(LONG iRowStart, LONG iRowCount); 
    STDMETHOD(insertedRows)(LONG iRowStart, LONG iRowCount); 
    STDMETHOD(rowsAvailable)(LONG iRowStart, LONG iRowCount); 
 
    STDMETHOD(RowChanged)(LONG iRow); 
    STDMETHOD(ColChanged)(LONG iCol); 
// ;begin_internal 
#ifdef NEVER 
    STDMETHOD(DeletedCols)(LONG iColStart, LONG iColCount); 
    STDMETHOD(InsertedCols)(LONG iColStart, LONG iColCount); 
#endif 
// ;end_internal 
    STDMETHOD(STDLoadStarted)(CComObject<CMyBindStatusCallback<CTDCCtl> > *pBSC, 
                              boolean fAppending); 
    STDMETHOD(STDLoadCompleted)(); 
    STDMETHOD(STDLoadStopped)(); 
    STDMETHOD(STDLoadedHeader)(); 
    STDMETHOD(STDDataSetChanged)(); 
 
    STDMETHOD(GetReadyState)(LONG *plReadyState); 
    STDMETHOD(UpdateReadyState)(LONG lReadyState);     
    CMyBindStatusCallback<CTDCCtl> *m_pBSC; 
 
private: 
    ULONG                    m_cRef;         // interface reference count 
    DataSourceListener      *m_pDataSourceListener; 
// ;begin_internal 
    DATASRCListener         *m_pDATASRCListener; 
// ;end_internal 
    OLEDBSimpleProviderListener *m_pSTDEvents; 
    LONG                     m_lReadyState; 
    CTDCCtl                  *m_pReadyStateControl; 
}; 
 
inline DataSourceListener *CEventBroker::GetDataSourceListener() 
{ 
    return m_pDataSourceListener; 
} 
 
// ;begin_internal 
inline DATASRCListener *CEventBroker::GetDATASRCListener() 
{ 
    return m_pDATASRCListener; 
} 
// ;end_internal 
 
inline OLEDBSimpleProviderListener *CEventBroker::GetSTDEvents() 
{ 
    return m_pSTDEvents; 
}