Line data    Source code

       1             : /******************************************************************************
       2             :  *
       3             :  * Project:  SOSI Translator
       4             :  * Purpose:  Implements OGRSOSIDriver.
       5             :  * Author:   Thomas Hirsch, <thomas.hirsch statkart no>
       6             :  *
       7             :  ******************************************************************************
       8             :  * Copyright (c) 2010, Thomas Hirsch
       9             :  * Copyright (c) 2010, Even Rouault <even dot rouault at spatialys.com>
      10             :  *
      11             :  * SPDX-License-Identifier: MIT
      12             :  ****************************************************************************/
      13             : 
      14             : #ifndef OGR_SOSI_H_INCLUDED
      15             : #define OGR_SOSI_H_INCLUDED
      16             : 
      17             : #include "ogrsf_frmts.h"
      18             : #include "fyba.h"
      19             : #include <map>
      20             : 
      21             : // Note: WRITE_SUPPORT not defined, since this is only partially implemented
      22             : 
      23             : /* interpolation of arcs(BUEP) creates # points for a full circle */
      24             : #define ARC_INTERPOLATION_FULL_CIRCLE 36.0
      25             : 
      26             : typedef std::map<std::string, std::string> S2S;
      27             : typedef std::map<std::string, unsigned int> S2I;
      28             : 
      29             : void RegisterOGRSOSI();
      30             : 
      31             : class ORGSOSILayer;      /* defined below */
      32             : class OGRSOSIDataSource; /* defined below */
      33             : 
      34             : /************************************************************************
      35             :  *                           OGRSOSILayer                               *
      36             :  * OGRSOSILayer reports all the OGR Features generated by the data      *
      37             :  * source, in an orderly fashion.                                       *
      38             :  ************************************************************************/
      39             : 
      40             : class OGRSOSILayer final : public OGRLayer
      41             : {
      42             :     int nNextFID;
      43             : 
      44             :     OGRSOSIDataSource *poParent; /* used to call methods from data source */
      45             :     LC_FILADM *poFileadm; /* ResetReading needs to refer to the file struct */
      46             :     OGRFeatureDefn *poFeatureDefn; /* the common definition of all features
      47             :                                       returned by this layer  */
      48             :     S2I *poHeaderDefn;
      49             : 
      50             :     LC_SNR_ADM oSnradm;
      51             :     LC_BGR oNextSerial; /* used by FYBA to iterate through features */
      52             :     LC_BGR *poNextSerial;
      53             : 
      54             :   public:
      55             :     OGRSOSILayer(OGRSOSIDataSource *poPar, OGRFeatureDefn *poFeatDefn,
      56             :                  LC_FILADM *poFil, S2I *poHeadDefn);
      57             :     ~OGRSOSILayer();
      58             : 
      59             :     void ResetReading() override;
      60             :     OGRFeature *GetNextFeature() override;
      61             :     OGRFeatureDefn *GetLayerDefn() override;
      62             : #ifdef WRITE_SUPPORT
      63             :     OGRErr CreateField(OGRFieldDefn *poField, int bApproxOK = TRUE) override;
      64             :     OGRErr ICreateFeature(OGRFeature *poFeature) override;
      65             : #endif
      66             :     int TestCapability(const char *) override;
      67             : };
      68             : 
      69             : /************************************************************************
      70             :  *                           OGRSOSIDataSource                          *
      71             :  * OGRSOSIDataSource reads a SOSI file, prebuilds the features, and     *
      72             :  * creates one OGRSOSILayer per geometry type                           *
      73             :  ************************************************************************/
      74             : class OGRSOSIDataSource final : public GDALDataset
      75             : {
      76             :     OGRSOSILayer **papoLayers;
      77             :     int nLayers;
      78             : 
      79             : #define MODE_READING 0
      80             : #define MODE_WRITING 1
      81             :     int nMode;
      82             : 
      83             :     void buildOGRPoint(long nSerial);
      84             :     void buildOGRLineString(int nNumCoo, long nSerial);
      85             :     void buildOGRMultiPoint(int nNumCoo, long nSerial);
      86             :     void buildOGRLineStringFromArc(long nSerial);
      87             : 
      88             :   public:
      89             :     OGRSpatialReference *poSRS;
      90             :     const char *pszEncoding;
      91             :     unsigned int nNumFeatures;
      92             :     OGRGeometry **papoBuiltGeometries; /* OGRSOSIDataSource prebuilds some
      93             :                                         * features upon opening, te be used by
      94             :                                         * the more complex geometries later. */
      95             :     // FYBA specific
      96             :     LC_BASEADM *poBaseadm;
      97             :     LC_FILADM *poFileadm;
      98             : 
      99             :     S2I *poPolyHeaders; /* Contain the header definitions of the four feature
     100             :                            layers */
     101             :     S2I *poPointHeaders;
     102             :     S2I *poCurveHeaders;
     103             :     S2I *poTextHeaders;
     104             : 
     105             :     OGRSOSIDataSource();
     106             :     ~OGRSOSIDataSource();
     107             : 
     108             :     int Open(const char *pszFilename, int bUpdate);
     109             : #ifdef WRITE_SUPPORT
     110             :     int Create(const char *pszFilename);
     111             : #endif
     112           0 :     int GetLayerCount() override
     113             :     {
     114           0 :         return nLayers;
     115             :     }
     116             : 
     117             :     OGRLayer *GetLayer(int) override;
     118             : #ifdef WRITE_SUPPORT
     119             :     OGRLayer *ICreateLayer(const char *pszName,
     120             :                            const OGRSpatialReference *poSpatialRef = NULL,
     121             :                            OGRwkbGeometryType eGType = wkbUnknown,
     122             :                            char **papszOptions = NULL) override;
     123             : #endif
     124             : };
     125             : 
     126             : /************************************************************************
     127             :  *                           OGRSOSIDataTypes                           *
     128             :  * OGRSOSIDataTypes provides the correct data types for some of the     *
     129             :  * most common SOSI elements.                                           *
     130             :  ************************************************************************/
     131             : 
     132             : class OGRSOSISimpleDataType
     133             : {
     134             :     CPLString osName;
     135             :     OGRFieldType nType;
     136             : 
     137             :   public:
     138             :     OGRSOSISimpleDataType();
     139             :     OGRSOSISimpleDataType(const char *pszName, OGRFieldType nType);
     140             :     ~OGRSOSISimpleDataType();
     141             : 
     142             :     void setType(const char *pszName, OGRFieldType nType);
     143             : 
     144        1110 :     const char *GetName() const
     145             :     {
     146        1110 :         return osName.c_str();
     147             :     }
     148             : 
     149         483 :     OGRFieldType GetType() const
     150             :     {
     151         483 :         return nType;
     152             :     }
     153             : };
     154             : 
     155             : class OGRSOSIDataType
     156             : {
     157             :     OGRSOSISimpleDataType *poElements = nullptr;
     158             :     int nElementCount = 0;
     159             : 
     160             :     OGRSOSIDataType &operator=(const OGRSOSIDataType &) = delete;
     161             : 
     162             :   public:
     163             :     explicit OGRSOSIDataType(int nSize);
     164             : 
     165        1481 :     OGRSOSIDataType(const OGRSOSIDataType &oSrc)
     166        1481 :         : poElements(nullptr), nElementCount(oSrc.nElementCount)
     167             :     {
     168        3271 :         poElements = new OGRSOSISimpleDataType[nElementCount];
     169        3271 :         for (int i = 0; i < nElementCount; i++)
     170        1790 :             poElements[i] = oSrc.poElements[i];
     171        1481 :     }
     172             : 
     173        1481 :     OGRSOSIDataType(OGRSOSIDataType &&oSrc) noexcept
     174        1481 :         : poElements(oSrc.poElements), nElementCount(oSrc.nElementCount)
     175             :     {
     176        1481 :         oSrc.poElements = nullptr;
     177        1481 :         oSrc.nElementCount = 0;
     178        1481 :     }
     179             : 
     180             :     ~OGRSOSIDataType();
     181             : 
     182             :     void setElement(int nIndex, const char *name, OGRFieldType type);
     183             : 
     184         486 :     OGRSOSISimpleDataType *getElements()
     185             :     {
     186         486 :         return poElements;
     187             :     }
     188             : 
     189        1041 :     int getElementCount()
     190             :     {
     191        1041 :         return nElementCount;
     192             :     }
     193             : };
     194             : 
     195             : typedef std::map<CPLString, OGRSOSIDataType> C2F;
     196             : 
     197             : void SOSIInitTypes();
     198             : void SOSICleanupTypes();
     199             : OGRSOSIDataType *SOSIGetType(const CPLString &name);
     200             : int SOSITypeToInt(const char *value);
     201             : double SOSITypeToReal(const char *value);
     202             : void SOSITypeToDate(const char *value, int *date);
     203             : void SOSITypeToDateTime(const char *value, int *date);
     204             : 
     205             : #endif /* OGR_SOSI_H_INCLUDED */