windows-server-2003/admin/controls/smonctrl/grphitem.h

/*++

Copyright (C) 1996-1999 Microsoft Corporation

Module Name:

    grphitem.h

Abstract:

    <abstract>

--*/

#ifndef _GRPHITEM_H_
#define _GRPHITEM_H_

class CSysmonControl;

//
// Persistant data structure
//

typedef struct
{
    COLORREF    m_rgbColor;
    INT32       m_iWidth;
    INT32       m_iStyle;       
    INT32       m_iScaleFactor;
    INT32       m_nPathLength;
} GRAPHITEM_DATA3;

typedef struct
{
    double      m_dMin;
    double      m_dMax;
    double      m_dAvg;
    FILETIME    m_LastTimeStamp;   
} LOG_ENTRY_DATA, *PLOG_ENTRY_DATA;

//
// Graphitem Class
// 
class CGraphItem : public ICounterItem
{
public:
    class  CCounterNode*    m_pCounter;
    class  CInstanceNode*   m_pInstance;
    class  CGraphItem*      m_pNextItem;
    PDH_COUNTER_INFO        m_CounterInfo;        
    HCOUNTER                m_hCounter;
    double                  m_dScale;
    PLOG_ENTRY_DATA         m_pLogData;
    BOOLEAN                 m_bUpdateLog;

public:
    BOOLEAN                 m_fLocalMachine;
    BOOLEAN                 m_fGenerated;

    CGraphItem(CSysmonControl *pCtrl);
    ~CGraphItem(void);

    //IUnknown members
    STDMETHODIMP         QueryInterface(REFIID, PPVOID);
    STDMETHODIMP_(ULONG) AddRef(void);
    STDMETHODIMP_(ULONG) Release(void);

    // ICounterItem methods
    STDMETHODIMP    put_Color(OLE_COLOR);
    STDMETHODIMP    get_Color(OLE_COLOR*);
    STDMETHODIMP    put_Width(INT);
    STDMETHODIMP    get_Width(INT*) ;
    STDMETHODIMP    put_LineStyle(INT) ;
    STDMETHODIMP    get_LineStyle(INT*) ;
    STDMETHODIMP    put_ScaleFactor(INT) ;
    STDMETHODIMP    get_ScaleFactor(INT*) ;
    STDMETHODIMP    get_Path(BSTR*) ;
    STDMETHODIMP    get_Value(double*) ;

    STDMETHODIMP GetValue(double *pdValue,  LONG *plStatus) ;
    STDMETHODIMP GetStatistics(double *pdMax, double *pdMin, double *pdAvg,
                            LONG *plStatus) ;

    // methods not exposed by ICounterItem interface
    static HRESULT NullItemToStream(LPSTREAM pIStream, INT iVersMaj, INT iVersMin);

    HPEN    Pen(void);
    HBRUSH  Brush(void);
    double  Scale(void) { return m_dScale; }
    HCOUNTER Handle(void) { return m_hCounter; }

    CInstanceNode *Instance(void) { return m_pInstance; }
    CCounterNode  *Counter(void) { return m_pCounter; }
    CObjectNode  *Object(void) { return m_pInstance->m_pObject; }
    CMachineNode *Machine(void) { return m_pInstance->m_pObject->m_pMachine; }
    CCounterTree *Tree(void) { return m_pInstance->m_pObject->m_pMachine->m_pCounterTree; }
    CGraphItem *Next(void);
    
    void    Delete(BOOL bPropagateUp);

    BOOL    CalcRequiresMultipleSamples ( void );

    HRESULT LoadFromPropertyBag ( 
                IPropertyBag*,
                IErrorLog*,
                INT iIndex,
                INT iVersMaj, 
                INT iVersMin,
                INT iSampleCount );
    
    HRESULT SaveToPropertyBag ( 
                IPropertyBag*,
                INT iIndex,
                BOOL bUserMode,
                INT iVersMaj, 
                INT iVersMin );

    HRESULT SaveToStream(LPSTREAM pIStream, BOOL fWildCard, INT iVersMaj, INT iVersMin);

    HRESULT AddToQuery(HQUERY hQuery);
    HRESULT RemoveFromQuery();

    void        ClearHistory( void );

    void        UpdateHistory(BOOL bValidSample);
    PDH_STATUS  HistoryValue(INT iIndex, double *pdValue, DWORD *pdwStatus);
    PDH_STATUS  GetLogEntry( const INT iIndex, double *dMin, double *dMax, double *dAvg, 
                            DWORD *pdwStatus);
    PDH_STATUS  GetLogEntryTimeStamp (
                            const INT iIndex, 
                            LONGLONG& rLastTimeStamp,
                            DWORD *pdwStatus);

    void  SetLogEntry( 
            const INT iIndex, 
            const double dMin, 
            const double dMax, 
            const double dAvg);

    void  SetLogEntryTimeStamp( const INT iIndex, const FILETIME& rLastTimeStamp );

    void  SetLogStats(double dMin, double dMax, double dAvg, LONG lStatus )
                { m_dLogMin = dMin; m_dLogMax = dMax; m_dLogAvg = dAvg; m_lLogStatsStatus = lStatus; }


private:
    CSysmonControl  *m_pCtrl;
    void    InvalidatePen(void);
    void    InvalidateBrush(void);
    LPWSTR  FormPath(BOOL fWildCard);

    // Used by LoadFromPropertyBag
    void    SetStatistics ( double dMax, double dMin, double dAvg, LONG lStatus );
    void    SetHistoryValue ( INT iIndex, double dValue );
  
    HRESULT GetNextValue ( WCHAR*& pszNext, double& dValue );
    
    ULONG   m_cRef;
    HPEN    m_hPen;
    HBRUSH  m_hBrush;

    COLORREF    m_rgbColor;
    INT         m_iWidth;
    INT         m_iStyle;       // No change in implementation
    INT         m_iScaleFactor;

    double  m_dLogMin;
    double  m_dLogMax;
    double  m_dLogAvg;
    LONG    m_lLogStatsStatus;

    PCImpIDispatch  m_pImpIDispatch;
    PPDH_RAW_COUNTER      m_pRawCtr;

    // Used by LoadFromPropertyBag
    double* m_pFmtCtr;
    double  m_dFmtMin;
    double  m_dFmtMax;
    double  m_dFmtAvg;
    long    m_lFmtStatus;

};

#endif