AcDbGraphNode.h

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#pragma once
 
//
// (C) Copyright 2005-2024 by Graebert GmbH.
//
// Permission to use, copy, modify, and distribute this software in
// object code form for any purpose and without fee is hereby granted,
// provided that the above copyright notice appears in all copies and
// that both that copyright notice and the limited warranty and
// restricted rights notice below appear in all supporting
// documentation.
//
// GRAEBERT PROVIDES THIS PROGRAM "AS IS" AND WITH ALL FAULTS.
// GRAEBERT SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTY OF
// MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE.  GRAEBERT GMBH
// DOES NOT WARRANT THAT THE OPERATION OF THE PROGRAM WILL BE
// UNINTERRUPTED OR ERROR FREE.
 
#include "..\acdb17\AcRxObject.h"
#include "..\acad\Acad.h"
 
class AcDbGraphNode_Impl;
 
template < typename Param1 > class AcArrayMemCopyReallocator;
 
class ARX_API AcDbGraphNode
{
    friend class AcDbGraphNode_Impl;
public:
          AcDbGraphNode(void * = NULL );
          Acad::ErrorStatus  addRefTo( AcDbGraphNode *);
          Acad::ErrorStatus  clear(unsigned char);
          Acad::ErrorStatus  disconnectAll(void);
          Acad::ErrorStatus  markAs(unsigned char);
          Acad::ErrorStatus  removeRefTo( AcDbGraphNode *);
         virtual  ~AcDbGraphNode(void);
         void  setEdgeGrowthRate(int,int);
 
     enum Flags 
     {
         kNone = 0x00,
         kVisited = 0x01,
         kOutsideRefed = 0x02,
         kSelected = 0x04,
         kInList = 0x08,
         kListAll = 0x0E, 
         kFirstLevel = 0x10,  
         kUnresTree = 0x20,
         kAll = 0x2F
     }; 
 
     void*               data() const;
     void                setData(void*);
     int                 numOut() const;
     int                 numIn() const;
     AcDbGraphNode*      in(int) const;
     AcDbGraphNode*      out(int) const;
     AcDbGraph*          owner() const;
     bool                isMarkedAs(unsigned char flags) const;
     Acad::ErrorStatus   markTree(unsigned char flags, AcDbVoidPtrArray* = NULL);
     int                 numCycleOut() const;
     int                 numCycleIn() const;
     AcDbGraphNode*      cycleIn(int) const;
     AcDbGraphNode*      cycleOut(int) const;
     AcDbGraphNode*      nextCycleNode() const;
     bool                isCycleNode() const;
   
 
 
private:
    Acad::ErrorStatus   resetCycles();
    Acad::ErrorStatus   removeCycleRefTo(AcDbGraphNode*);
    Acad::ErrorStatus   clearCycles();
    Acad::ErrorStatus   setOwner(AcDbGraph*);
 
protected:
    AcDbGraphNode_Impl* m_pImpl;
};