Line data    Source code

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