125 lines
3.6 KiB
C++
125 lines
3.6 KiB
C++
/***************************************************************************\
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*
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* File: MsgObject.h
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*
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* Description:
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* MsgObject.h defines the "Message Object" class that is used to receive
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* messages in DirectUser. This object is created for each instance of a
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* class that is instantiated.
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*
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*
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* History:
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* 8/05/2000: JStall: Created
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*
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* Copyright (C) 2000 by Microsoft Corporation. All rights reserved.
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*
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\***************************************************************************/
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#if !defined(MSG__MsgObject_h__INCLUDED)
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#define MSG__MsgObject_h__INCLUDED
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#pragma once
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class MsgTable;
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class MsgClass;
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struct ExposedMsgObject
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{
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const MsgTable * m_pmt;
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GArrayS<void *> m_arpThis;
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};
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class MsgObject : public BaseObject
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{
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// Construction
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public:
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inline MsgObject();
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inline ~MsgObject();
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protected:
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virtual void xwDestroy();
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void xwEndDestroy();
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// BaseObject
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public:
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virtual HandleType GetHandleType() const { return htMsgObject; }
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virtual UINT GetHandleMask() const { return hmMsgObject; }
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// Operations
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public:
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static DUser::Gadget *
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CastGadget(HGADGET hgad);
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static DUser::Gadget *
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CastGadget(MsgObject * pmo);
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static HGADGET CastHandle(DUser::Gadget * pg);
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static HGADGET CastHandle(MsgObject * pmo);
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static MsgObject * CastMsgObject(DUser::Gadget * pg);
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static MsgObject * CastMsgObject(HGADGET hgad);
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inline DUser::Gadget *
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GetGadget() const;
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BOOL InstanceOf(const MsgClass * pmcTest) const;
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inline DUser::Gadget *
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CastClass(const MsgClass * pmcTest) const;
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void * GetGutsData(const MsgClass * pmcData) const;
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inline HRESULT PreAllocThis(int cSlots);
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inline void FillThis(int idxSlotStart, int idxSlotEnd, void * pvThis, const MsgTable * pmtNew);
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inline HRESULT Promote(void * pvThis, const MsgTable * pmtNew);
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inline void Demote(int cLevels);
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inline void * GetThis(int idxThis) const;
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inline int GetDepth() const;
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inline int GetBuildDepth() const;
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inline void InvokeMethod(MethodMsg * pmsg) const;
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#if 1
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BOOL SetupInternal(HCLASS hcl);
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#endif
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// Implementation
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protected:
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static MsgObject * RawCastMsgObject(DUser::Gadget * pg);
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static DUser::Gadget *
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RawCastGadget(MsgObject * pmo);
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public:
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static HRESULT CALLBACK
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PromoteInternal(DUser::ConstructProc pfnCS, HCLASS hclCur, DUser::Gadget * pgad, DUser::Gadget::ConstructInfo * pciData);
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static HCLASS CALLBACK
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DemoteInternal(HCLASS hclCur, DUser::Gadget * pgad, void * pvData);
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// Data
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private:
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ExposedMsgObject
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m_emo; // Actual data
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public:
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static HCLASS s_hclSuper; // DUMMY data used by IMPL classes
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};
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#define DECLARE_INTERNAL(name) \
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static HCLASS CALLBACK \
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Demote##name(HCLASS hclCur, DUser::Gadget * pgad, void * pvData) \
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{ \
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return DemoteInternal(hclCur, pgad, pvData); \
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} \
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\
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static void MarkInternal() \
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{ \
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GetClassLibrary()->MarkInternal(s_mc.hclNew); \
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} \
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template <class T>
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inline T *
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Cast(const MsgObject * pmo)
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{
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return static_cast<T *> (const_cast<MsgObject *> (pmo)->GetGadget());
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}
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#include "MsgObject.inl"
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#endif // MSG__MsgObject_h__INCLUDED
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