windows-nt/Source/XPSP1/NT/windows/richedit/re30/_coleobj.h
2020-09-26 16:20:57 +08:00

290 lines
9.9 KiB
C++

/*
* @doc INTERNAL
*
* @module _COLEOBJ.H The OLE Object management class |
*
* Author: alexgo 10/24/95
*
* Copyright (c) 1995-1998, Microsoft Corporation. All rights reserved.
*/
#ifndef __COLEOBJ_H__
#define __COLEOBJ_H__
#include "_notmgr.h"
#ifdef LINESERVICES
extern "C" {
#include "plsdnode.h"
}
#endif
class CDisplay;
class CDevDesc;
class CTxtEdit;
class IUndoBuilder;
/*
* COleObject
*
* @class This class manages an individual OLE object embedding.
*
*/
class COleObject : public IOleClientSite, public IOleInPlaceSite,
public IAdviseSink, public CSafeRefCount, public ITxNotify
{
//@access Public methods
public:
//
// IUnknown methods
//
STDMETHOD(QueryInterface)(REFIID riid, void **pv);
STDMETHOD_(ULONG, AddRef)(void);
STDMETHOD_(ULONG, Release)(void);
//
// IOleClientSite methods
//
STDMETHOD(SaveObject)(void);
STDMETHOD(GetMoniker)(DWORD dwAssign, DWORD dwWhichMoniker,
IMoniker **ppmk);
STDMETHOD(GetContainer)(IOleContainer **ppContainer);
STDMETHOD(ShowObject)(void);
STDMETHOD(OnShowWindow)(BOOL fShow);
STDMETHOD(RequestNewObjectLayout)(void);
//
// IOleInPlaceSite methods
//
STDMETHOD(GetWindow)(HWND *phwnd);
STDMETHOD(ContextSensitiveHelp)(BOOL fEnterMode);
STDMETHOD(CanInPlaceActivate)(void);
STDMETHOD(OnInPlaceActivate)(void);
STDMETHOD(OnUIActivate)(void);
STDMETHOD(GetWindowContext)(IOleInPlaceFrame **ppFrame,
IOleInPlaceUIWindow **ppDoc, LPRECT lprcPosRect,
LPRECT lprcClipRect,
LPOLEINPLACEFRAMEINFO lpFrameInfo);
STDMETHOD(Scroll)(SIZE scrollExtant);
STDMETHOD(OnUIDeactivate)(BOOL fUndoable);
STDMETHOD(OnInPlaceDeactivate)(void);
STDMETHOD(DiscardUndoState)(void);
STDMETHOD(DeactivateAndUndo)(void);
STDMETHOD(OnPosRectChange)(LPCRECT lprcPosRect);
//
// IAdviseSink methods
//
STDMETHOD_(void, OnDataChange)(FORMATETC *pfetc, STGMEDIUM *pmedium);
STDMETHOD_(void, OnViewChange)(DWORD dwAspect, LONG lindex);
STDMETHOD_(void, OnRename)(IMoniker *pmk);
STDMETHOD_(void, OnSave)(void);
STDMETHOD_(void, OnClose)(void);
//
// ITxNotify methods
//
virtual void OnPreReplaceRange( LONG cp, LONG cchDel, LONG cchNew,
LONG cpFormatMin, LONG cpFormatMax);
virtual void OnPostReplaceRange( LONG cp, LONG cchDel, LONG cchNew,
LONG cpFormatMin, LONG cpFormatMax);
virtual void Zombie();
//
// internal public methods
//
COleObject(CTxtEdit *ped); //@cmember Constructor
LONG GetCp() {return _cp;} //@cmember Get cp for this object
CTxtEdit *GetPed() {return _ped;} //@cmember Get ped for this object
//@cmember Fill out the REOBJECT struct
HRESULT GetObjectData(REOBJECT *preobj, DWORD dwFlags);
BOOL IsLink(); //@cmember returns TRUE if the object
// is a link object.
//@cmember Initialize from the given
// object data
HRESULT InitFromREOBJECT(LONG cp, REOBJECT *preobj);
//@cmember Measures the object (no outgoing calls)
void MeasureObj(long dypInch, long dxpInch, LONG & xWidth, LONG & yAscent, LONG & yDescent, SHORT yDescentFont);
//@cmember Draws the object
void DrawObj(const CDisplay *pdp, long dypInch, long dxpInch, HDC hdc, BOOL fMetafile, POINT *ppt, RECT *prcRender,
LONG yBaselineLine, LONG yDescentMaxCur);
//@cmember Handle the object being
// deleted from the backing store
void Delete(IUndoBuilder *publdr);
void Restore(); //@cmember restore an object into
// the backing store
//@cmember Force a close on the
// object
void Close(DWORD dwSaveOption);
//@cmember Zombie the object.
void MakeZombie(void);
//@cmember Activate the object
BOOL ActivateObj(UINT uiMsg, WPARAM wParam, LPARAM lParam);
HRESULT DeActivateObj(void); //@cmember Aeactivate the object
//@cmember Set individual selection
//state of object
RECT * GetPosRect() //@cmember return the position rect
{ return &_rcPos; }
void ResetPosRect(LONG *pAdjust = NULL);
void FetchObjectExtents(void);//@cmember Gets the size of the object
//@cmember return REO_SELECTED state
BOOL GetREOSELECTED(void) {return (_pi.dwFlags & REO_SELECTED);}
//@cmember set REO_SELECTED state
void SetREOSELECTED(BOOL fSelect);
//@cmember checks for hits on frame handles
LPTSTR CheckForHandleHit(const POINT &pt);
//@cmember handle object resize
BOOL HandleResize(const POINT &pt);
//@cmember sets object size
void Resize(const RECT &rcNew);
//@cmember update _sizel
void ResetSizel(const SIZEL &sizel)
{_sizel = sizel;}
//@cmember called when object position changes
void OnReposition( LONG dx, LONG dy );
//@cmember gets objects IUnknown
IUnknown * GetIUnknown(void) {return _punkobj;}
//@cmember converts to the specified class
HRESULT Convert(REFCLSID rclsidNew, LPCSTR lpstrUserTypeNew);
//@cmember activate as the specified class
HRESULT ActivateAs(REFCLSID rclsid, REFCLSID rclsidAs);
//@cmember set aspect to use
void SetDvaspect(DWORD dvaspect);
//@cmember get current aspect
DWORD GetDvaspect()
{ return _pi.dvaspect; }
//@cmember see IPersistStore::HandsOffStorage
void HandsOffStorage(void);
//@cmember see IPersistStore::SaveCompleted
void SaveCompleted(LPSTORAGE lpstg);
//@cmember set REO_LINKAVAILABLE flag
HRESULT SetLinkAvailable(BOOL fAvailable);
//@cmember Used for textize support
LONG WriteTextInfoToEditStream(EDITSTREAM *pes);
//@cmember Scroll this object if appropriate
void ScrollObject(LONG dx, LONG dy, LPCRECT prcScroll);
//@cmember guard the position rectangle
// from bad updates
void EnableGuardPosRect() {_fGuardPosRect = TRUE;}
//@cmember clear the guard bit
void DisableGuardPosRect() {_fGuardPosRect = FALSE;}
//@cmember set the _hdata member
void SetHdata(HGLOBAL hg) {_hdata = hg;}
//@cmember get the _hdata member
void GetSizel(SIZEL &sizel) {sizel = _sizel;}
//&cmember gets the _sizel member
DWORD GetFlags() {return _pi.dwFlags;}
//&cmember gets the _sizel member
DWORD GetUser() {return _pi.dwUser;}
//&cmember gets the _sizel member
DWORD GetAspect() {return _pi.dvaspect;}
//&cmember gets the _sizel member
// For internal use without reentering undo system.
STDMETHOD(SafeSaveObject)(void);
HGLOBAL GetHdata() {return _hdata;}
struct ImageInfo
{
LONG xScale, yScale; // @field scaling percentage along axes
SHORT xExtGoal, yExtGoal; // @field desired dimensions in twips for pictures
SHORT cBytesPerLine; // @field # bytes per raster line, if bitmap
};
//@cmember set the _pimageinfo member
void SetImageInfo(struct ImageInfo *pim) {_pimageinfo = pim;}
//@cmember get the _pimageinfo member
ImageInfo *GetImageInfo() {return _pimageinfo;}
#ifdef DEBUG
void DbgDump(DWORD id);
#endif
BOOL GetViewChanged() {return _fViewChange;}
void ResetViewChanged() {_fViewChange = FALSE;}
//@access Private methods and data
private:
virtual ~COleObject(); //@cmember Destructor
void SavePrivateState(void);//@cmember Saves private information
HRESULT ConnectObject(void);//@cmember setup advises, etc.
void DisconnectObject(void);//@cmember tear down advises, etc.
void CleanupState(void); //@cmember cleans up our member data, etc.
//@cmember draws frame around object
void DrawFrame(const CDisplay *pdp, HDC hdc, RECT* prc);
//@cmember helper to draw frame handles
void DrawHandle(HDC hdc, int x, int y);
//@cmember helper to check for hit on a handle
void CreateDib(HDC hdc);
//@cmember helper to create DIB for WinCE bitmaps
void DrawDib(HDC hdc, RECT *prc);
//@cmember helper to draw WinCE bitmaps
BOOL InHandle(int x, int y, const POINT &pt);
//@cmember to restablish rectangle position
enum { SE_NOTACTIVATING, SE_ACTIVATING }; // used by SetExtent to indicate
// the context of the SetExtent call
//@cmember Attempts to set object extents
HRESULT SetExtent(int iActivating);
CTxtEdit * _ped; //@cmember edit context for this object
IUnknown * _punkobj; //@cmember pointer to the objects IUnknown.
IStorage * _pstg; //@cmember storage for the object
RECT _rcPos ; //@cmember position rect in client coords
SIZEL _sizel; //@cmember cached "real" size of the object
LONG _cp; //@cmember position of this object
DWORD _dwConn; //@cmember advise connection cookie
HGLOBAL _hdata;
HBITMAP _hdib;
ImageInfo * _pimageinfo;
struct PersistedInfo
{
DWORD dwFlags; //@cmember see richole.h
DWORD dwUser; //@cmember user defined
DWORD dvaspect; //@cmember from the DVASPECT enumeration
};
PersistedInfo _pi;
SHORT _dxyFrame; //@cmember Object frame width
DWORD _fInPlaceActive:1; //@cmember inplace active?
DWORD _fInUndo:1; //@cmember in the undo stack?
DWORD _fIsWordArt2:1; //@cmember Is this object a WordArt 2.0
// object? (need to do hacks for it)
DWORD _fIsPaintBrush:1; //@cmember Is this object a PaintBrush
// object? (need to do hacks for it)
DWORD _fPBUseLocalSizel:1;
//@cmember Signals that SetExtent
// for a PaintBrush object failed and that
// _sizel is an accurate indication of object size
DWORD _fDraw:1; //@cmember Should object be drawn?
DWORD _fSetExtent:1; //@cmember Does SetExtent need to be called
//when activating.
DWORD _fGuardPosRect:1; //@cmember Guards position rect from updating
DWORD _fDeactivateCalled:1;//@cmember Whether deactivate has been called.
DWORD _fAspectChanged:1; //@cmember Forces FetchObjectExtents to call through when aspect changes
DWORD _fViewChange:1; //@cmember flag to indicate size of object changed
DWORD _fActivateCalled:1; //@member Are we in the middle of the activation sequence?
#ifdef LINESERVICES
public:
PLSDNODE _plsdnTop; //@cmember Ptr to LS display node
#endif
};
#endif // __COLEOBJ_H_