MgaContext.h

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// MgaContext.h: interface for the CMgaContext class.
//

#if !defined(AFX_MGACONTEXT_H__48B8CD86_FF78_4183_8360_D33CE1792CD7__INCLUDED_)
#define AFX_MGACONTEXT_H__48B8CD86_FF78_4183_8360_D33CE1792CD7__INCLUDED_

#if _MSC_VER > 1000
#pragma once
#endif // _MSC_VER > 1000



class CMgaContext  
{
        friend class CCurrentProject;

        int m_nPendingTransactions;
        void SetTransactionState(int nValue);
public:
        void SetEventTransactionMode(bool bOnOff);

        CComPtr<IMgaProject> m_ccpProject;
        CComPtr<IMgaTerritory> m_ccpTerritory;


        void CreateContext(IMgaEventSink& rMgaEventSink,LPUNKNOWN pMgaProject);
        void CloseContext();
        CComPtr<IMgaComponentEx> FindConstraintManager();
        
        bool AbortTransaction();
        bool CommitTransaction();
        bool BeginTransaction(bool bIsReadOnly = true);
        bool BeginTransaction(transactiontype_enum type);
        bool IsInTransaction();
        CMgaContext();
        virtual ~CMgaContext();

private:
        bool m_bEventTransactionMode;
};

class Utils
{
public:
        static CComPtr<IGMEOLEApp> get_GME( CComPtr<IMgaProject> p_mgaproject)
        {
                CComPtr<IGMEOLEApp> gme;
                if( p_mgaproject) {             
                        CComBSTR bstrName("GME.Application");
                        CComPtr<IMgaClient> pClient;
                        HRESULT hr = p_mgaproject->GetClientByName(bstrName, &pClient);
                        if (SUCCEEDED(hr) && pClient) {
                                CComPtr<IDispatch> pDispatch;
                                hr = pClient->get_OLEServer(&pDispatch);
                                if (SUCCEEDED(hr) && pDispatch) {
                                        hr = pDispatch.QueryInterface(&gme);
                                        if (FAILED(hr)) {
                                                gme = NULL;
                                        }
                                }
                        }
                }
                return gme;
        } 

        static void put2Console( CComPtr<IGMEOLEApp> gme, CComBSTR msg, msgtype_enum typ)
        {
                if(gme)
                        gme->ConsoleMessage( msg, typ);
        }
};

#endif // !defined(AFX_MGACONTEXT_H__48B8CD86_FF78_4183_8360_D33CE1792CD7__INCLUDED_)