/*
 * POLYLINE.H
 * Polyline Component Chapter 19
 *
 * Definitions and function prototypes
 *
 * Copyright (c)1993-1995 Microsoft Corporation, All Rights Reserved
 *
 * Kraig Brockschmidt, Microsoft
 * Internet  :  kraigb@microsoft.com
 * Compuserve:  >INTERNET:kraigb@microsoft.com
 */


#ifndef _POLYLINE_H_
#define _POLYLINE_H_

#define INC_CLASSLIB
#define INC_CONTROLS
//CHAPTER19MOD
#define INC_OLEUI
#define CHAPTER19
//CHAPTER19MOD
#include <inole.h>
#include <ipoly10.h>
#include "resource.h"


//Classname
#define SZCLASSPOLYLINE             TEXT("polyline")

//Stream Name that holds the data
#define SZSTREAM                    OLETEXT("CONTENTS")

//CHAPTER19MOD
#define SZPOLYFRAMETITLE            TEXT("Polyline Figure in %s")

//Magic number to add to aspects returned from IViewObject::Freeze
#define FREEZE_KEY_OFFSET           0x0723
//End CHAPTER19MOD

#define HIMETRIC_PER_INCH           2540
#define CCHPATHMAX                  256

//Window extra bytes and offsets
#define CBPOLYLINEWNDEXTRA          (sizeof(LONG))
#define PLWL_STRUCTURE              0


//DLLPOLY.CPP
int PASCAL LibMain(HINSTANCE, WORD, WORD, LPSTR);

//This class factory object creates Polyline objects.

class CPolylineClassFactory : public IClassFactory
    {
    protected:
        ULONG           m_cRef;

    public:
        CPolylineClassFactory(void);
        ~CPolylineClassFactory(void);

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

        //IClassFactory members
        STDMETHODIMP         CreateInstance(LPUNKNOWN, REFIID
                                 , PPVOID);
        STDMETHODIMP         LockServer(BOOL);
    };

typedef CPolylineClassFactory *PCPolylineClassFactory;



//POLYWIN.CPP
LRESULT APIENTRY PolylineWndProc(HWND, UINT, WPARAM, LPARAM);


//CHAPTER19MOD
#ifdef WIN32
#define PROP_POINTER    TEXT("Pointer")
#else
#define PROP_SELECTOR   "Selector"
#define PROP_OFFSET     "Offset"
#endif

BOOL APIENTRY PolyDlgProc(HWND, UINT, WPARAM, LPARAM);
//End CHAPTER19MOD

//Forward class references
class CImpIPolyline;
typedef class CImpIPolyline *PCImpIPolyline;

class CImpIConnPtCont;
typedef CImpIConnPtCont *PCImpIConnPtCont;

class CConnectionPoint;
typedef CConnectionPoint *PCConnectionPoint;

class CImpIPersistStorage;
typedef class CImpIPersistStorage *PCImpIPersistStorage;

class CImpIPersistStreamInit;
typedef class CImpIPersistStreamInit *PCImpIPersistStreamInit;

class CImpIDataObject;
typedef class CImpIDataObject *PCImpIDataObject;

//CHAPTER19MOD
class CImpIOleObject;
typedef class CImpIOleObject *PCImpIOleObject;

class CImpIViewObject;
typedef class CImpIViewObject *PCImpIViewObject;

class CImpIRunnableObject;
typedef class CImpIRunnableObject *PCImpIRunnableObject;

//FORMATETC array sizes no longer necessary.
//End CHAPTER19MOD


//POLYLINE.CPP
class CPolyline : public IUnknown
    {
    friend LRESULT APIENTRY PolylineWndProc(HWND, UINT, WPARAM
        , LPARAM);

    friend class CImpIPolyline;
    friend class CImpIConnPtCont;
    friend class CConnectionPoint;
    friend class CImpIPersistStorage;
    friend class CImpIPersistStreamInit;
    friend class CImpIDataObject;

    //CHAPTER19MOD
    friend BOOL APIENTRY PolyDlgProc(HWND, UINT, WPARAM, LPARAM);
    friend class CImpIOleObject;
    friend class CImpIViewObject;
    friend class CImpIRunnableObject;
    //End CHAPTER19MOD

    protected:
        HWND            m_hWnd;
        HINSTANCE       m_hInst;

        ULONG           m_cRef;         //Object reference count
        LPUNKNOWN       m_pUnkOuter;    //Controlling Unknown
        PFNDESTROYED    m_pfnDestroy;   //Function called on closure
        BOOL            m_fDirty;       //Have we changed?
        POLYLINEDATA    m_pl;           //Our actual data

        //Contained interfaces
        PCImpIPolyline          m_pImpIPolyline;
        PCImpIConnPtCont        m_pImpIConnPtCont;
        PCImpIPersistStorage    m_pImpIPersistStorage;
        PCImpIPersistStreamInit m_pImpIPersistStreamInit;
        PCImpIDataObject        m_pImpIDataObject;

        /*
         * Connected sink:  only one per object.  We get this
         * through our connection point.
         */
        IPolylineAdviseSink10  *m_pAdv;
        PCConnectionPoint       m_pConnPt;

        PCStringTable   m_pST;          //Object strings
        UINT            m_cf;           //Object clipboard format
        CLSID           m_clsID;        //Current CLSID

        //We have to hold these for IPersistStorage::Save
        LPSTORAGE       m_pIStorage;
        LPSTREAM        m_pIStream;

        LPDATAADVISEHOLDER  m_pIDataAdviseHolder;

        //CHAPTER19MOD
        //FORMATETC arrays no longer necessary.

        //These are default handler interfaces we use
        LPUNKNOWN           m_pDefIUnknown;
        LPVIEWOBJECT2       m_pDefIViewObject;
        LPPERSISTSTORAGE    m_pDefIPersistStorage;
        LPDATAOBJECT        m_pDefIDataObject;

        //Implemented and used interfaces
        PCImpIOleObject     m_pImpIOleObject;       //Implemented
        LPOLEADVISEHOLDER   m_pIOleAdviseHolder;    //Used

        LPOLECLIENTSITE     m_pIOleClientSite;      //Used

        PCImpIViewObject    m_pImpIViewObject;      //Implemented
        LPADVISESINK        m_pIAdviseSink;         //Used
        DWORD               m_dwFrozenAspects;      //Freeze
        DWORD               m_dwAdviseAspects;      //SetAdvise
        DWORD               m_dwAdviseFlags;        //SetAdvise

        POLYLINEDATA        m_plContent;            //For freezing
        POLYLINEDATA        m_plThumbnail;          //For freezing

        PCImpIRunnableObject m_pImpIRunnableObject; //Implemented
        HWND                m_hDlg;                 //Editing window
        //End CHAPTER19MOD

    protected:
        void      PointScale(LPRECT, LPPOINTS, BOOL);
        //CHAPTER19MOD
        void      Draw(HDC, BOOL, BOOL, LPRECT, PPOLYLINEDATA);
        HINSTANCE Instance(void);
        LPTSTR    String(UINT);
        void      SendAdvise(UINT);
        //End CHAPTER19MOD
        void      RectConvertMappings(LPRECT, BOOL);

        /*
         * These members pulled from IPolyline now serve as a
         * central store for this functionality to be used from
         * other interfaces like IPersistStorage and IDataObject.
         * Other interfaces later may also use them.
         */
        STDMETHODIMP DataSet(PPOLYLINEDATA, BOOL, BOOL);
        STDMETHODIMP DataGet(PPOLYLINEDATA);

        STDMETHODIMP RenderNative(HGLOBAL *);
        STDMETHODIMP RenderBitmap(HBITMAP *);
        STDMETHODIMP RenderMetafilePict(HGLOBAL *);


    public:
        CPolyline(LPUNKNOWN, PFNDESTROYED, HINSTANCE);
        ~CPolyline(void);

        BOOL      Init(void);

        //Non-delegating object IUnknown
        STDMETHODIMP QueryInterface(REFIID, PPVOID);
        STDMETHODIMP_(ULONG) AddRef(void);
        STDMETHODIMP_(ULONG) Release(void);
    };

typedef CPolyline *PCPolyline;


//CHAPTER19MOD
//Codes for CPolyline::SendAdvise
//......Code.....................Method called in CPolyline::SendAdvise
#define OBJECTCODE_SAVED       0 //IOleAdviseHolder::SendOnSave
#define OBJECTCODE_CLOSED      1 //IOleAdviseHolder::SendOnClose
#define OBJECTCODE_RENAMED     2 //IOleAdviseHolder::SendOnRename
#define OBJECTCODE_SAVEOBJECT  3 //IOleClientSite::SaveObject
#define OBJECTCODE_DATACHANGED 4 //IDataAdviseHolder::SendOnDataChange
#define OBJECTCODE_SHOWWINDOW  5 //IOleClientSite::OnShowWindow(TRUE)
#define OBJECTCODE_HIDEWINDOW  6 //IOleClientSite::OnShowWindow(FALSE)
#define OBJECTCODE_SHOWOBJECT  7 //IOleClientSite::ShowObject
//End CHAPTER19MOD



//Interface implementation contained in the Polyline.

class CImpIPolyline : public IPolyline10
    {
    protected:
        ULONG               m_cRef;      //Interface reference count
        PCPolyline          m_pObj;      //Back pointer to object
        LPUNKNOWN           m_pUnkOuter; //Controlling unknown

    public:
        CImpIPolyline(PCPolyline, LPUNKNOWN);
        ~CImpIPolyline(void);

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

        //Manipulation members:
        STDMETHODIMP Init(HWND, LPRECT, DWORD, UINT);
        STDMETHODIMP New(void);
        STDMETHODIMP Undo(void);
        STDMETHODIMP Window(HWND *);