mitab_priv.h

mitab,读取MapInfo的地图文件

    int         nPointWidth;
    GInt32      rgbColor;
} TABPenDef;

/* MI Default = PEN(1,2,0) */
#define MITAB_PEN_DEFAULT {0, 1, 2, 0, 0x000000}

/*---------------------------------------------------------------------
 * TABBrushDef - Brush definition information
 *--------------------------------------------------------------------*/
typedef struct TABBrushDef_t
{
    GInt32      nRefCount;
    GByte       nFillPattern;
    GByte       bTransparentFill; // 1 = Transparent
    GInt32      rgbFGColor;
    GInt32      rgbBGColor;
} TABBrushDef;

/* MI Default = BRUSH(1,0,16777215) */
#define MITAB_BRUSH_DEFAULT {0, 1, 0, 0, 0xffffff}

/*---------------------------------------------------------------------
 * TABFontDef - Font Name information
 *--------------------------------------------------------------------*/
typedef struct TABFontDef_t
{
    GInt32      nRefCount;
    char        szFontName[33];
} TABFontDef;

/* MI Default = FONT("Arial",0,0,0) */
#define MITAB_FONT_DEFAULT {0, "Arial"}

/*---------------------------------------------------------------------
 * TABSymbolDef - Symbol definition information
 *--------------------------------------------------------------------*/
typedef struct TABSymbolDef_t
{
    GInt32      nRefCount;
    GInt16      nSymbolNo;
    GInt16      nPointSize;
    GByte       _nUnknownValue_;// Style???
    GInt32      rgbColor;
} TABSymbolDef;

/* MI Default = SYMBOL(35,0,12) */
#define MITAB_SYMBOL_DEFAULT {0, 35, 12, 0, 0x000000}

/*---------------------------------------------------------------------
 *                      class TABToolDefTable
 *
 * Class to handle the list of Drawing Tool Definitions for a dataset
 *
 * This class also contains methods to read tool defs from the file and
 * write them to the file.
 *--------------------------------------------------------------------*/

class TABToolDefTable
{
  protected:
    TABPenDef   **m_papsPen;
    int         m_numPen;
    int         m_numAllocatedPen;
    TABBrushDef **m_papsBrush;
    int         m_numBrushes;
    int         m_numAllocatedBrushes;
    TABFontDef  **m_papsFont;
    int         m_numFonts;
    int         m_numAllocatedFonts;
    TABSymbolDef **m_papsSymbol;
    int         m_numSymbols;
    int         m_numAllocatedSymbols;

  public:
    TABToolDefTable();
    ~TABToolDefTable();

    int         ReadAllToolDefs(TABMAPToolBlock *poToolBlock);
    int         WriteAllToolDefs(TABMAPToolBlock *poToolBlock);

    TABPenDef   *GetPenDefRef(int nIndex);
    int         AddPenDefRef(TABPenDef *poPenDef);
    int         GetNumPen();

    TABBrushDef *GetBrushDefRef(int nIndex);
    int         AddBrushDefRef(TABBrushDef *poBrushDef);
    int         GetNumBrushes();

    TABFontDef  *GetFontDefRef(int nIndex);
    int         AddFontDefRef(TABFontDef *poFontDef);
    int         GetNumFonts();

    TABSymbolDef *GetSymbolDefRef(int nIndex);
    int         AddSymbolDefRef(TABSymbolDef *poSymbolDef);
    int         GetNumSymbols();

    int         GetMinVersionNumber();
};

/*=====================================================================
          Classes to handle Object Headers inside TABMAPObjectBlocks
 =====================================================================*/

class TABMAPObjectBlock;
class TABMAPHeaderBlock;

class TABMAPObjHdr
{
  public:
    GByte       m_nType;
    GInt32      m_nId;
    GInt32      m_nMinX;  /* Object MBR */
    GInt32      m_nMinY;
    GInt32      m_nMaxX;
    GInt32      m_nMaxY;

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

    static TABMAPObjHdr *NewObj(GByte nNewObjType, GInt32 nId=0);
    static TABMAPObjHdr *ReadNextObj(TABMAPObjectBlock *poObjBlock,
                                     TABMAPHeaderBlock *poHeader);

    GBool       IsCompressedType();
    int         WriteObjTypeAndId(TABMAPObjectBlock *);
    void        SetMBR(GInt32 nMinX, GInt32 nMinY, GInt32 nMaxX, GInt32 mMaxY);

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

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

class TABMAPObjHdrWithCoord: public TABMAPObjHdr
{
  public:
    GInt32      m_nCoordBlockPtr;
    GInt32      m_nCoordDataSize;

    /* Eventually this class may have methods to help maintaining refs to
     * coord. blocks when splitting object blocks.
     */
};


class TABMAPObjNone: public TABMAPObjHdr
{
  public:

    TABMAPObjNone() {};
    virtual ~TABMAPObjNone() {};

    virtual int WriteObj(TABMAPObjectBlock *) {return 0;};

//  protected:
    virtual int ReadObj(TABMAPObjectBlock *) {return 0;};
};


class TABMAPObjPoint: public TABMAPObjHdr
{
  public:
    GInt32      m_nX;
    GInt32      m_nY;
    GByte       m_nSymbolId;

    TABMAPObjPoint() {};
    virtual ~TABMAPObjPoint() {};

    virtual int WriteObj(TABMAPObjectBlock *);

//  protected:
    virtual int ReadObj(TABMAPObjectBlock *);
};

class TABMAPObjFontPoint: public TABMAPObjPoint
{
  public:
    GByte       m_nPointSize;
    GInt16      m_nFontStyle;
    GByte       m_nR;
    GByte       m_nG;
    GByte       m_nB;
    GInt16      m_nAngle;  /* In tenths of degree */
    GByte       m_nFontId;

    TABMAPObjFontPoint() {};
    virtual ~TABMAPObjFontPoint() {};

    virtual int WriteObj(TABMAPObjectBlock *);

//  protected:
    virtual int ReadObj(TABMAPObjectBlock *);
};

class TABMAPObjCustomPoint: public TABMAPObjPoint
{
  public:
    GByte m_nUnknown_;
    GByte m_nCustomStyle;
    GByte m_nFontId;

    TABMAPObjCustomPoint() {};
    virtual ~TABMAPObjCustomPoint() {};

    virtual int WriteObj(TABMAPObjectBlock *);

//  protected:
    virtual int ReadObj(TABMAPObjectBlock *);
};


class TABMAPObjLine: public TABMAPObjHdr
{
  public:
    GInt32      m_nX1;
    GInt32      m_nY1;
    GInt32      m_nX2;
    GInt32      m_nY2;
    GByte       m_nPenId;

    TABMAPObjLine() {};
    virtual ~TABMAPObjLine() {};

    virtual int WriteObj(TABMAPObjectBlock *);

//  protected:
    virtual int ReadObj(TABMAPObjectBlock *);
};

class TABMAPObjPLine: public TABMAPObjHdrWithCoord
{
  public:
    GInt32      m_numLineSections;  /* MULTIPLINE/REGION only. Not in PLINE */
    GInt32      m_nLabelX;      /* Centroid/label location */
    GInt32      m_nLabelY;
    GInt32      m_nComprOrgX;   /* Present only in compressed coord. case */
    GInt32      m_nComprOrgY;
    GByte       m_nPenId;
    GByte       m_nBrushId;
    GBool       m_bSmooth;      /* TRUE if (m_nCoordDataSize & 0x80000000) */

    TABMAPObjPLine() {};
    virtual ~TABMAPObjPLine() {};

    virtual int WriteObj(TABMAPObjectBlock *);

//  protected:
    virtual int ReadObj(TABMAPObjectBlock *);
};

class TABMAPObjRectEllipse: public TABMAPObjHdr
{
  public:
    GInt32      m_nCornerWidth;   /* For rounded rect only */
    GInt32      m_nCornerHeight;
    GByte       m_nPenId;
    GByte       m_nBrushId;

    TABMAPObjRectEllipse() {};
    virtual ~TABMAPObjRectEllipse() {};

    virtual int WriteObj(TABMAPObjectBlock *);

//  protected:
    virtual int ReadObj(TABMAPObjectBlock *);
};

class TABMAPObjArc: public TABMAPObjHdr
{
  public:
    GInt32      m_nStartAngle;
    GInt32      m_nEndAngle;
    GInt32      m_nArcEllipseMinX;  /* MBR of the arc defining ellipse */
    GInt32      m_nArcEllipseMinY;  /* Only present in arcs            */
    GInt32      m_nArcEllipseMaxX;
    GInt32      m_nArcEllipseMaxY;
    GByte       m_nPenId;

    TABMAPObjArc() {};
    virtual ~TABMAPObjArc() {};

    virtual int WriteObj(TABMAPObjectBlock *);

//  protected:
    virtual int ReadObj(TABMAPObjectBlock *);
};


class TABMAPObjText: public TABMAPObjHdrWithCoord
{
  public:
    /* String and its len stored in the nCoordPtr and nCoordSize */

    GInt16      m_nTextAlignment;
    GInt32      m_nAngle;
    GInt16      m_nFontStyle;

    GByte       m_nFGColorR;
    GByte       m_nFGColorG;
    GByte       m_nFGColorB;
    GByte       m_nBGColorR;
    GByte       m_nBGColorG;
    GByte       m_nBGColorB;

    GInt32      m_nLineEndX;
    GInt32      m_nLineEndY;

    GInt32      m_nHeight;
    GByte       m_nFontId;

    GByte       m_nPenId;

    TABMAPObjText() {};
    virtual ~TABMAPObjText() {};

    virtual int WriteObj(TABMAPObjectBlock *);

//  protected:
    virtual int ReadObj(TABMAPObjectBlock *);
};


class TABMAPObjMultiPoint: public TABMAPObjHdrWithCoord
{
  public:
    GInt32      m_nNumPoints;
    GInt32      m_nComprOrgX;   /* Present only in compressed coord. case */
    GInt32      m_nComprOrgY;
    GByte       m_nSymbolId;
    GInt32      m_nLabelX;      /* Not sure if it's a label point, but */
    GInt32      m_nLabelY;      /* it's similar to what we find in PLINE */

    TABMAPObjMultiPoint() {};
    virtual ~TABMAPObjMultiPoint() {};

    virtual int WriteObj(TABMAPObjectBlock *);

//  protected:
    virtual int ReadObj(TABMAPObjectBlock *);
};

class TABMAPObjCollection: public TABMAPObjHdrWithCoord
{
  public:
    GInt32      m_nRegionDataSize;
    GInt32      m_nPolylineDataSize;
    GInt32      m_nMPointDataSize;
    GInt32      m_nComprOrgX;   /* Present only in compressed coord. case */
    GInt32      m_nComprOrgY;
    GInt32      m_nNumMultiPoints;
    GInt32      m_nNumRegSections;
    GInt32      m_nNumPLineSections;

    GByte       m_nMultiPointSymbolId;
    GByte       m_nRegionPenId;
    GByte       m_nRegionBrushId;
    GByte       m_nPolylinePenId;

    TABMAPObjCollection() {};
    virtual ~TABMAPObjCollection() 
    {}