tabfile.h

linux下一款GIS程序源码

// tabfile.h: interface for the TABFile class.
//
//////////////////////////////////////////////////////////////////////

#ifndef  TABFile_H
#define  TABFile_H


#include "mapinfofile.h"

class TABFile : public MapInfoFile  
{
private:
    char        *m_pszFname;
    TABAccess   m_eAccessMode;
    char        **m_papszTABFile;
    int         m_nVersion;
    char        *m_pszCharset;
    int         *m_panIndexNo; 
	TABTableType m_eTableType;  // NATIVE (.DAT) or DBF

    TABDATFile  *m_poDATFile;   // Attributes file       --DAT file $zgq
    TABMAPFile  *m_poMAPFile;   // Object Geometry file  --MAP file $zgq
    TABINDFile  *m_poINDFile;   // Attributes index file --IND file $zgq

	UGKFeatureDefn *m_poDefn;
	//UGKSpatialReference *m_poSpatialRef;
	int         bUseSpatialTraversal;

	int         m_nLastFeatureId;

	int         ParseTABFileFirstPass(UGKBool bTestOpenNoError);
	int         ParseTABFileFields();

	int         WriteTABFile();

public:
	TABFile();
	virtual ~TABFile();

	virtual TABFileClass GetFileClass() {return TABFC_TABFile;}

	virtual int Open(const char *pszFname, const char *pszAccess,
                     UGKBool bTestOpenNoError = FALSE );
	virtual int Close();

    virtual const char *GetTableName()
                            {return m_poDefn?m_poDefn->GetName():"";};
	
	virtual void        ResetReading();
	virtual int         TestCapability( const char * pszCap );
	virtual int         GetFeatureCount (int bForce);
	virtual int         GetExtent(UGKEnvelope *psExtent, int bForce);

	int         GetNextFeatureId_Spatial( int nPrevId );

	virtual int GetNextFeatureId(int nPrevId);
	virtual TABFeature *GetFeatureRef(int nFeatureId);
	virtual UGKFeatureDefn *GetLayerDefn();

	virtual TABFieldType GetNativeFieldType(int nFieldId);

    virtual int GetBounds(double &dXMin, double &dYMin, 
                          double &dXMax, double &dYMax,
                          UGKBool bForce = TRUE );

    virtual int GetFeatureCountByType(int &numPoints, int &numLines,
                                      int &numRegions, int &numTexts,
                                      UGKBool bForce = TRUE);

	virtual UGKBool IsFieldIndexed(int nFieldId);
	virtual UGKBool IsFieldUnique(int )   {return FALSE;};

    virtual int SetBounds(double dXMin, double dYMin, 
                          double dXMax, double dYMax);
    virtual int SetFeatureDefn(UGKFeatureDefn *poFeatureDefn,
                            TABFieldType *paeMapInfoNativeFieldTypes = NULL);

    virtual int AddFieldNative(const char *pszName, TABFieldType eMapInfoType,
                               int nWidth=0, int nPrecision=0,
                               UGKBool bIndexed=FALSE, UGKBool bUnique=FALSE);

	virtual int SetFeature(TABFeature *poFeature, int nFeatureId = -1);
	virtual int SetFieldIndexed(int nFieldId);

    virtual int  GetProjInfo(TABProjInfo *poPI)
            { return m_poMAPFile->GetHeaderBlock()->GetProjInfo( poPI ); }
	virtual int  SetProjInfo(TABProjInfo *poPI);
	virtual int  SetMIFCoordSys(const char *pszMIFCoordSys);

	int         GetFieldIndexNumber(int nFieldId);
	TABINDFile  *GetINDFileRef();

	TABMAPFile  *GetMAPFileRef() { return m_poMAPFile; };

	int  SetUseSpatialIndex(UGKBool bUse){return bUseSpatialTraversal = bUse;};

};

#endif