84 lines
2.3 KiB
C++
Executable File
84 lines
2.3 KiB
C++
Executable File
/**********************************************************************
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*<
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FILE: hold.h
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DESCRIPTION:
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CREATED BY: Dan Silva
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HISTORY:
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*> Copyright (c) 1994, All Rights Reserved.
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**********************************************************************/
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#ifndef __HOLD__H__
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#define __HOLD__H__
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#define RESTOBJ_DOES_REFERENCE_POINTER 1
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#define RESTOBJ_GOING_TO_DELETE_POINTER 2
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class HoldStore;
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class RestoreObj {
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friend class HoldStore;
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friend class GenUndoObject;
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friend class CheckForFlush;
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RestoreObj *next,*prev;
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public:
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RestoreObj() { next = prev = NULL; }
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virtual ~RestoreObj() {};
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virtual void Restore(int isUndo)=0;
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virtual void Redo()=0;
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virtual int Size() { return 1; }
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virtual void EndHold() { }
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virtual TSTR Description() { return TSTR(_T("---")); }
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virtual int Execute(int cmd, ULONG arg1=0, ULONG arg2=0, ULONG arg3=0) {return -1;}
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};
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class Hold {
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HoldStore *holdStore, *holdList;
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int undoEnabled;
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int superLevel;
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int putCount;
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HoldStore *ResetStore();
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void Init();
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void AddOpToUndoMgr(TCHAR *name,int id);
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public:
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CoreExport Hold();
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CoreExport ~Hold();
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CoreExport void Put(RestoreObj *rob);
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CoreExport void Begin();
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CoreExport void Suspend(); // temporarly suspend holding
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CoreExport int IsSuspended();
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CoreExport void Resume(); // resume holding
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CoreExport int Holding(); // are we holding?
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CoreExport void DisableUndo(); // prevents Undo when Accept is called.
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CoreExport void EnableUndo();
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CoreExport void Restore(); // Restore changes from holdStore.
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CoreExport void Release(); // Tosses out holdStore.
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// 3 ways to terminate the Begin()...
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CoreExport void End(); // toss holdStore.
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CoreExport void Accept(int nameID); // record Undo (if enabled), End();
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CoreExport void Accept(TCHAR *name);
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CoreExport void Cancel(); // Restore changes, End()
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//
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// Group several Begin-End lists into a single Super-group.
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CoreExport void SuperBegin();
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CoreExport void SuperAccept(int nameID);
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CoreExport void SuperAccept(TCHAR *name);
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CoreExport void SuperCancel();
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// Get the number of times Put() has been called in the current session of MAX
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CoreExport int GetGlobalPutCount();
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};
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extern CoreExport Hold theHold;
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void CoreExport EnableUndoDebugPrintout(BOOL onoff);
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#endif //__HOLD__H__
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