TENANT.H

/* 
 * TENANT.H 
 * Patron Chapter 17 
 * 
 * Definitions and function prototypes for the CTenant class 
 * 
 * Copyright (c)1993-1995 Microsoft Corporation, All Rights Reserved 
 * 
 * Kraig Brockschmidt, Microsoft 
 * Internet  :  kraigb@microsoft.com 
 * Compuserve:  >INTERNET:kraigb@microsoft.com 
 */ 
 
 
#ifndef _TENANT_H_ 
#define _TENANT_H_ 
 
 
//CHAPTER17MOD 
 
class CImpIOleClientSite : public IOleClientSite 
    { 
    protected: 
        ULONG               m_cRef; 
        class CTenant      *m_pTen; 
        LPUNKNOWN           m_pUnkOuter; 
 
    public: 
        CImpIOleClientSite(class CTenant *, LPUNKNOWN); 
        ~CImpIOleClientSite(void); 
 
        STDMETHODIMP QueryInterface(REFIID, PPVOID); 
        STDMETHODIMP_(ULONG) AddRef(void); 
        STDMETHODIMP_(ULONG) Release(void); 
 
        STDMETHODIMP SaveObject(void); 
        STDMETHODIMP GetMoniker(DWORD, DWORD, LPMONIKER *); 
        STDMETHODIMP GetContainer(LPOLECONTAINER *); 
        STDMETHODIMP ShowObject(void); 
        STDMETHODIMP OnShowWindow(BOOL); 
        STDMETHODIMP RequestNewObjectLayout(void); 
    }; 
 
typedef CImpIOleClientSite *PCImpIOleClientSite; 
 
 
 
class CImpIAdviseSink : public IAdviseSink 
    { 
    protected: 
        ULONG               m_cRef; 
        class CTenant      *m_pTen; 
        LPUNKNOWN           m_pUnkOuter; 
 
    public: 
        CImpIAdviseSink(class CTenant *, LPUNKNOWN); 
        ~CImpIAdviseSink(void); 
 
        STDMETHODIMP QueryInterface(REFIID, PPVOID); 
        STDMETHODIMP_(ULONG) AddRef(void); 
        STDMETHODIMP_(ULONG) Release(void); 
 
        STDMETHODIMP_(void)  OnDataChange(LPFORMATETC, LPSTGMEDIUM); 
        STDMETHODIMP_(void)  OnViewChange(DWORD, LONG); 
        STDMETHODIMP_(void)  OnRename(LPMONIKER); 
        STDMETHODIMP_(void)  OnSave(void); 
        STDMETHODIMP_(void)  OnClose(void); 
    }; 
 
 
typedef CImpIAdviseSink *PCImpIAdviseSink; 
 
//End CHAPTER17MOD 
 
 
/* 
 * Tenant class describing an individual piece of data in a page. 
 * It knows where it sits, what object is inside of it, and what 
 * its idenitifer is such that it can find it's storage within a 
 * page. 
 */ 
 
//Patron Objects clipboard format 
typedef struct tagPATRONOBJECT 
    { 
    POINTL      ptl;        //Location of object 
    POINTL      ptlPick;    //Pick point from drag-drop operation 
    SIZEL       szl;        //Extents of object (absolute) 
    FORMATETC   fe;         //Actual object format 
    } PATRONOBJECT, *PPATRONOBJECT; 
 
 
 
//Values for hit-testing, drawing, and resize-tracking tenants 
#define CXYHANDLE       5 
 
//Tenant types (not persistent, but determined at load time) 
typedef enum 
    { 
    TENANTTYPE_NULL=0, 
    TENANTTYPE_STATIC, 
    //CHAPTER17MOD 
    TENANTTYPE_EMBEDDEDOBJECT, 
    TENANTTYPE_EMBEDDEDFILE, 
    TENANTTYPE_EMBEDDEDOBJECTFROMDATA 
    //End CHAPTER17MOD 
    } TENANTTYPE, *PTENANTTYPE; 
 
 
//State flags 
#define TENANTSTATE_DEFAULT      0x00000000 
#define TENANTSTATE_SELECTED     0x00000001 
 
//CHAPTER17MOD 
#define TENANTSTATE_OPEN         0x00000002 
//End CHAPTER17MOD 
 
 
/* 
 * Persistent information we need to save for each tenant, which is 
 * done in the tenant list instead of with each tenant.  Since this 
 * is a small structure it's best not to blow another stream for it 
 * (overhead). 
 */ 
typedef struct tagTENANTINFO 
    { 
    DWORD       dwID; 
    RECTL       rcl; 
    FORMATETC   fe;             //Excludes ptd 
    short       fSetExtent;     //Call IOleObject::SetExtent on Run 
    } TENANTINFO, *PTENANTINFO; 
 
 
class CTenant : public IUnknown 
    { 
    //CHAPTER17MOD 
    friend CImpIOleClientSite; 
    friend CImpIAdviseSink; 
    //End CHAPTER17MOD 
 
    private: 
        HWND            m_hWnd;         //Pages window 
        DWORD           m_dwID;         //Persistent DWORD ID 
        DWORD           m_cOpens;       //Count calls to Open 
 
        BOOL            m_fInitialized; //Something here? 
        LPUNKNOWN       m_pObj;         //The object here 
        LPSTORAGE       m_pIStorage;    //Sub-storage for tenant 
 
        FORMATETC       m_fe;           //Used to create the object 
        DWORD           m_dwState;      //State flags 
        RECTL           m_rcl;          //Space of this object 
        CLSID           m_clsID;        //Object class (for statics) 
        BOOL            m_fSetExtent;   //Call SetExtent on next run 
 
        class CPages   *m_pPG;          //Pages window 
 
        //CHAPTER17MOD 
        TENANTTYPE      m_tType;            //Type identifier 
        ULONG           m_cRef;             //We're an object now 
        LPOLEOBJECT     m_pIOleObject;      //IOleObject on m_pObj 
        LPVIEWOBJECT2   m_pIViewObject2;    //IViewObject2 on m_pObj 
        ULONG           m_grfMisc;          //OLEMISC flags 
        BOOL            m_fRepaintEnabled;  //No redundant paints 
 
        //Our interfaces 
        PCImpIOleClientSite m_pImpIOleClientSite; 
        PCImpIAdviseSink    m_pImpIAdviseSink; 
        //End CHAPTER17MOD 
 
    protected: 
        //CHAPTER17MOD 
        BOOL    ObjectInitialize(LPUNKNOWN, LPFORMATETC, DWORD); 
        //End CHAPTER17MOD 
        HRESULT CreateStatic(LPDATAOBJECT, LPFORMATETC 
            , LPUNKNOWN *); 
 
    public: 
        CTenant(DWORD, HWND, CPages *); 
        ~CTenant(void); 
 
        //CHAPTER17MOD 
        //Gotta have an IUnknown for delegation 
        STDMETHODIMP QueryInterface(REFIID, PPVOID); 
        STDMETHODIMP_(ULONG) AddRef(void); 
        STDMETHODIMP_(ULONG) Release(void); 
        //End CHAPTER17MOD 
 
        DWORD       GetID(void); 
        UINT        GetStorageName(LPOLESTR); 
        //CHAPTER17MOD 
        void        StorageGet(LPSTORAGE *); 
        //End CHAPTER17MOD 
        UINT        Create(TENANTTYPE, LPVOID, LPFORMATETC, PPOINTL 
                        , LPSIZEL, LPSTORAGE, PPATRONOBJECT, DWORD); 
        BOOL        Load(LPSTORAGE, PTENANTINFO); 
        void        GetInfo(PTENANTINFO); 
        BOOL        Open(LPSTORAGE); 
        void        Close(BOOL); 
        BOOL        Update(void); 
        void        Destroy(LPSTORAGE); 
 
        void        Select(BOOL); 
        //CHAPTER17MOD 
        void        ShowAsOpen(BOOL); 
        void        ShowYourself(void); 
        void        AddVerbMenu(HMENU, UINT); 
        TENANTTYPE  TypeGet(void); 
        void        CopyEmbeddedObject(LPDATAOBJECT, LPFORMATETC 
                        , PPOINTL); 
        void        NotifyOfRename(LPTSTR, LPVOID); 
        //End CHAPTER17MOD 
 
        BOOL        Activate(LONG); 
        void        Draw(HDC, DVTARGETDEVICE *, HDC, int, int 
                        , BOOL, BOOL); 
        void        Repaint(void); 
        void        Invalidate(void); 
 
        //CHAPTER17MOD 
        void        ObjectClassFormatAndIcon(LPCLSID, LPWORD 
                        , LPTSTR *, HGLOBAL *, LPTSTR *); 
        BOOL        SwitchOrUpdateAspect(HGLOBAL, BOOL); 
        void        EnableRepaint(BOOL); 
        //End CHAPTER17MOD 
 
        void        ObjectGet(LPUNKNOWN *); 
        void        FormatEtcGet(LPFORMATETC, BOOL); 
        void        SizeGet(LPSIZEL, BOOL); 
        //CHAPTER17MOD 
        void        SizeSet(LPSIZEL, BOOL, BOOL); 
        //End CHAPTER17MOD 
        void        RectGet(LPRECTL, BOOL); 
        //CHAPTER17MOD 
        void        RectSet(LPRECTL, BOOL, BOOL); 
        //End CHAPTER17MOD 
    }; 
 
 
typedef CTenant *PCTenant; 
 
//Return codes for Create 
#define CREATE_FAILED               0 
#define CREATE_GRAPHICONLY          1 
#define CREATE_PLACEDOBJECT         2 
 
 
 
#endif //_TENANT_H_