tabmapobjhdr.h

linux下一款GIS程序源码

// tabmapobjhdr.h: interface for the TABMAPObjHdr class.
//
/*=====================================================================
          Classes to handle Object Headers inside TABMAPObjectBlocks
 =====================================================================*/

#ifndef  TABMAPObjHdr_H
#define  TABMAPObjHdr_H

#include "ugkglobal.h"

#include "tabmapobjectblock.h"
#include "tabmapheaderblock.h"


class TABMAPObjHdr  
{
public:
    UGKByte       m_nType;  //对象类型
    UGKInt32      m_nId;    //对象号
    UGKInt32      m_nMinX;  /* Object MBR */
    UGKInt32      m_nMinY;
    UGKInt32      m_nMaxX;
    UGKInt32      m_nMaxY;

	TABMAPObjHdr(){};
	virtual ~TABMAPObjHdr(){};

    static TABMAPObjHdr *NewObj(UGKByte nNewObjType, UGKInt32 nId=0);
    static TABMAPObjHdr *ReadNextObj(TABMAPObjectBlock *poObjBlock,
                                     TABMAPHeaderBlock *poHeader);

    UGKBool       IsCompressedType();
    int         WriteObjTypeAndId(TABMAPObjectBlock *);
    void        SetMBR(UGKInt32 nMinX, UGKInt32 nMinY, UGKInt32 nMaxX, UGKInt32 mMaxY);

    virtual int WriteObj(TABMAPObjectBlock *) {return -1;};

    virtual int ReadObj(TABMAPObjectBlock *) {return -1;};
};

#endif