144 lines
4.7 KiB
C
144 lines
4.7 KiB
C
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/*
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* @doc INTERNAL
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*
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* @module _objmgr.h Class declaration for the object manager class |
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*
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* Author: alexgo 11/4/95
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*
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* Copyright (c) 1995-1997, Microsoft Corporation. All rights reserved.
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*/
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#ifndef __OBJMGR_H__
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#define __OBJMGR_H__
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#include "_coleobj.h"
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#include "_array.h"
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#include "_m_undo.h"
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class CTxtEdit;
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/*
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* @enum return values for HandleClick
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*/
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enum ClickStatus
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{
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CLICK_IGNORED = 0,
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CLICK_OBJDEACTIVATED = 1,
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CLICK_SHOULDDRAG = 2,
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CLICK_OBJSELECTED = 3
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};
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typedef CArray<COleObject *> ObjectArray;
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/*
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* CObjectMgr
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*
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* @class keeps track of a collection of OLE embedded objects as well as
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* various state tidbits
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*/
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class CObjectMgr
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{
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public:
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LONG GetObjectCount(); //@cmember count # of objects
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LONG GetLinkCount(); //@cmember count # of links
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COleObject * GetObjectFromCp(LONG cp); //@cmember fetch object ptr
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COleObject * GetObjectFromIndex(LONG index); //@cmember fetch obj ptr
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//@cmember insert object
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HRESULT InsertObject(LONG cp, REOBJECT *preobj,
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IUndoBuilder *publdr);
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//@cmember re-inserts the given
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// object
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HRESULT RestoreObject(COleObject *pobj);
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IRichEditOleCallback *GetRECallback() //@cmember return the callback
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{return _precall;}
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//@cmember set the OLE callback
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void SetRECallback(IRichEditOleCallback *precall);
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//@cmember sets a temporary flag
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// indicating whether or not
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// a UI update is pending.
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void SetShowUIPending(BOOL fPending)
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{_fShowUIPending = fPending;}
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BOOL GetShowUIPending() //@cmember get _fShowUIPending
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{return _fShowUIPending;}
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//@cmember sets the inplace
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// active object
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void SetInPlaceActiveObject(COleObject *pobj)
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{ _pobjactive = pobj; }
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COleObject * GetInPlaceActiveObject() //@cmember get the active obj
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{ return _pobjactive; }
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BOOL GetHelpMode() //@cmember in help mode?
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{ return _fInHelpMode; }
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void SetHelpMode(BOOL fHelp) //@cmember set the help mode
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{ _fInHelpMode = fHelp; }
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//@cmember Set the host names
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HRESULT SetHostNames(LPWSTR pszApp, LPWSTR pszDoc);
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LPWSTR GetAppName() //@cmember get the app name
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{ return _pszApp; }
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LPWSTR GetDocName() //@cmember get the doc name
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{ return _pszDoc; }
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//@cmember activate an object
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//if appropriate
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BOOL HandleDoubleClick(CTxtEdit *ped, const POINT &pt,
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DWORD flags);
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//@cmember an object may be
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// selected or de-activated.
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ClickStatus HandleClick(CTxtEdit *ped, const POINT &pt);
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//@cmember an object may be
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// selected or deselected.
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void HandleSingleSelect(CTxtEdit *ped, LONG cp, BOOL fHiLite);
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//@cmember an object is
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// being selected by itself.
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COleObject * GetSingleSelect(void) {return _pobjselect;}
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//@cmember Count cObject
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LONG CountObjects(LONG& rcObject,// objects up to cchMax
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LONG cp); // chars away
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//@cmember Handles the deletion
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// of objects.
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void ReplaceRange(LONG cp, LONG cchDel,
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IUndoBuilder *publdr);
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//@cmember Count the number
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//of objects in a range.
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LONG CountObjectsInRange(LONG cpMin, LONG cpMost);
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//@cmember Get the first
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//object in a range.
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COleObject * GetFirstObjectInRange(LONG cpMin, LONG cpMost);
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//@cmember activate objects of one class as
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//as another
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HRESULT ActivateObjectsAs(REFCLSID rclsid, REFCLSID rclsidAs);
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//@cmember inform objects
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// that scrolling has
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// occured.
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void ScrollObjects(LONG dx, LONG dy, LPCRECT prcScroll);
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LONG FindIndexForCp(LONG cp); //@cmember does a binary search for cp
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//@cmember find an object near a point
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#ifdef DEBUG
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void DbgDump(void);
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#endif
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CObjectMgr(); //@cmember constructor
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~CObjectMgr(); //@cmember destructor
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private:
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ObjectArray _objarray; //@cmember Array of embedded objects
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LONG _lastindex; //@cmember Last index used
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// (lookup optimization)
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IRichEditOleCallback *_precall; //@cmember Callback for various OLE
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// operations.
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COleObject * _pobjactive; //@cmember Object that is currently
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// inplace active
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COleObject * _pobjselect; //@cmember Object that is currently
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// individually selected (not active)
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LPWSTR _pszApp; //@cmember Name of app
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LPWSTR _pszDoc; //@cmember Name of "document"
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unsigned int _fShowUIPending:1;//@cmember a UI update is pending
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unsigned int _fInHelpMode:1; //@cmember in context sensitive help mode?
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};
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#endif //__OBJMGR_H__
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